EP2024553A1 - Circuit et procédé pour faire fonctionner un module peltier d'une pompe à chaleur dans un appareil électroménager - Google Patents

Circuit et procédé pour faire fonctionner un module peltier d'une pompe à chaleur dans un appareil électroménager

Info

Publication number
EP2024553A1
EP2024553A1 EP07728217A EP07728217A EP2024553A1 EP 2024553 A1 EP2024553 A1 EP 2024553A1 EP 07728217 A EP07728217 A EP 07728217A EP 07728217 A EP07728217 A EP 07728217A EP 2024553 A1 EP2024553 A1 EP 2024553A1
Authority
EP
European Patent Office
Prior art keywords
peltier
operating
peltier module
module
groups
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
EP07728217A
Other languages
German (de)
English (en)
Other versions
EP2024553B1 (fr
Inventor
Hasan Gökcer ALBAYRAK
Sven-Stefan Krüger
Guido Sattler
Klaus Grunert
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
Priority to PL07728217T priority Critical patent/PL2024553T3/pl
Publication of EP2024553A1 publication Critical patent/EP2024553A1/fr
Application granted granted Critical
Publication of EP2024553B1 publication Critical patent/EP2024553B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D06F58/20—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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • 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
    • D06F2105/26—Heat pumps
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/08—Control circuits or arrangements thereof
    • 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
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • 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
    • F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
    • F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
    • F25B2321/021—Control thereof
    • F25B2321/0212—Control thereof of electric power, current or voltage

Definitions

  • the invention relates to a method and a circuit arrangement for operating a Peltier module of a domestic appliance for the care of laundry items, in particular a clothes dryer.
  • Peltier-Element in structure and function is described.
  • the half elements of this Peltier element are formed column or cuboid and consist of doped semiconductors as materials.
  • the semiconductors are in particular bismuth telluride and a p-type doped semiconductor and an n-type doped semiconductor are used.
  • a half element of the p-type doped semiconductor and a half element of the n-type doped semiconductor are each connected to one side via a printed circuit board, also referred to as a metal bridge, and at another side, which is opposite said one side, connected in each case via a further printed circuit board with a further half-element or a connection contact for connection of the Peltier element to an electrical network.
  • a printed circuit board also referred to as a metal bridge
  • a washing machine in which laundry not only washed but also can be dried.
  • the document shows several alternatives.
  • an electric heating device for heating an air stream used for drying laundry and a simple heat exchanger for cooling the heated Air flow may be provided after applying the laundry, but the heater and the radiator may also belong to a heat pump device.
  • the heat pump device can also be designed such that it works with Peltier elements for the use of the thermoelectric effect.
  • DE 41 01 664 A1 discloses a heat pump system with a plurality of Peltier elements, which is intended in particular for space heating.
  • the total number of Peltier elements is divided into groups, each group is electrically and thermally controlled individually.
  • a control device of the heat pump system which switches on the groups of Peltier elements alternatively a conventional constant or a regenerative non-constant current source.
  • An apparatus for drying laundry originating from an English short extract belonging to the patent abstract "Patent Abstracts of Japan" for JP 08 057 194 A contains, in addition to a heater and a cooler, both of which belong to a thermoelectrically operable heat pump device, in their first duct system the cooler upstream additional heat exchanger for cooling the air flow discharged from the laundry and an additional heating device downstream of the heater for further heating of the air flow before the loading of the laundry.
  • a circuit arrangement according to the invention is designed to operate a Peltier module of a heat pump of a domestic appliance, which is designed in particular for the care of laundry items.
  • the Peltier module has a plurality of Peltier elements, wherein at least two Peltier groups are provided, each of which comprises at least one Peltier element.
  • the circuit comprises Furthermore, a multi-phase voltage regulator, which is electrically connected to the Peltier groups and is designed for separate voltage regulation of the individual Peltier groups. This allows a reduced power consumption of the Peltier module.
  • the Peltier module is operable compared to a Peltier module without Peltier groups with a lower operating voltage.
  • the operating voltage of the Peltier module is preferably a DC voltage less than 120V, in particular less than 70V, in particular about 60V.
  • the circuit arrangement preferably comprises first means with which at least one first operating parameter of the Peltier module can be detected in a first operating phase of the Peltier module, and second means with which in a second operating phase of the Peltier module at least one second operating parameter of the Peltier module can be detected, and a switching regulator, with which from the detected operating parameters degrees of moisture introduced in the household appliance and to be dried objects, in particular laundry, can be determined and dependent on the further operating process is controllable.
  • Information of the Peltier module can thereby be used to further set the operating process of the domestic appliance and in particular the Peltier module, whereby a more precise control is possible.
  • the Peltier module is subdivided into at least two Peltier groups, each of which has at least two Peltier elements, wherein the respective Peltier groups are separately powered by a multi-phase voltage regulator.
  • the Peltier module is preferably operated at a lower operating voltage compared to a Peltier module without Peltier groups.
  • the Peltier module with a DC voltage less than 120V, in particular less than 70V, in particular about 60V supplied.
  • a first operating phase of a Peltier module of a heat pump of the domestic appliance preferably at least one first operating parameter of the Peltier module and in a second operating phase at least a second operating parameter of the Peltier module is detected, depending on these detected operating parameters moisture levels of objects to be dried in the domestic appliance , In particular laundry, be determined and depending on the further operation process is set.
  • Figures 1 and 2 each show a circuit diagram of a circuit arrangement for operating a Peltier module. Identical or functionally identical elements in the figures each have the same reference numerals.
  • Peltier module 1 is schematically illustrated, which is intended to be used in a Peltier heat pump for a designed as a tumble domestic appliance.
  • the Peltier module 1 comprises in each case four times three series-connected Peltier elements 2, that is to say twelve Peltier elements 2; however, Peltier module 1 is not set to this number.
  • this is first provided as a conventional AC voltage with 120 V or 230 V (120 VAC / 230 VAC), wherein here the connections L and N are shown schematically.
  • the AC voltage is rectified by a mains rectifier 3, which has a conventional construction.
  • a capacitor 4 is provided as a buffer and connected in parallel with the DC-side terminals of the mains rectifier 3.
  • a mains current measurement and a mains voltage measurement are carried out, the circuit part 5 being electrically connected to a switching regulator 6 and the measured values to the switching regulator 6 for evaluation and further processing are transferable.
  • the switching regulator 6 can be designed as a microprocessor.
  • the circuit arrangement comprises a driver circuit 7, a circuit part 8 and a voltage transducer 9, which are assigned to a multi-phase voltage regulator in addition to the switching regulator 6.
  • the switching regulator 6 can be electrically connected to a control and monitoring unit (not shown) of the household appliance via a communication interface (not shown), via which nominal values and actual values of various parameters, in particular of the Peltier module 1, can be transmitted.
  • a temperature sensor 10 in this case a PTC resistor, is arranged at the Peltier module 1.
  • an AC-side switch 14 can be actuated by means of a relay drive circuit 12, whereby the entire Peltier module 1 is switched off depending on the switch position.
  • an NTC resistor 11 is arranged on the Peltier module 1, which is likewise designed for temperature determination and transmits the detected measured values to the switching regulator 6.
  • a first operating phase of the tumble dryer is initially set in the exemplary embodiment, in which case the Peltier module 1 of a heat pump of the tumble dryer is energized.
  • the Peltier module 1 is connected to the rectified mains voltage, to which the transistors 8a and 8b are connected accordingly.
  • a second operating phase is subsequently set to predefinable phases of the drying process, for which purpose the Peltier module 1 is disconnected from the power supply by the transistors 8a and 8b being switched accordingly.
  • the temperatures of a cold side and a warm side of the Peltier module 1 are determined.
  • the thermoelectric voltage generated by the Peltier module 1 after separation from the power supply is measured, from which the temperature difference between the cold side and the warm side of the Peltier module 1 in the switching regulator 6 is determined.
  • a local temperature of the Peltier module 1 is determined via the NTC resistor 11, which in particular represents the temperature of the hot side or an average temperature of the Peltier module 1.
  • the temperature difference and the local temperature of the Peltier module 1 can then be the temperature of the cold side of the Peltier module 1 and, if not present, the warm side of the Peltier module 1, calculated.
  • the Peltier module 1 is again connected to the power supply by the transistors 8a and 8b are switched accordingly and thereby again the first phase of operation of the clothes dryer and the Peltier module 1 is set.
  • the power consumption of the Peltier module 1 is then measured after connecting it with the power supply until setting a desired operating point of the Peltier module 1.
  • the Peltier module 1 comprises four Peltier groups 1 a, 1 b, 1 c and 1 d, each of which has a plurality of Peltier elements, in each case three Peltier elements 2 in each case.
  • the Peltier groups 1 a to 1 d are formed as separate components and with a multi-phase voltage regulator, which the switching regulator 6, the driver circuit 7, the Circuit part 8 with the switching transistors 8a and 8b, and the voltage transducer 9 comprises.
  • each Peltier group 1 a, 1 b, 1 c and 1 d may comprise only a single Peltier element; However, it serves a desirable simplicity of the circuit arrangement to combine several Peltier elements in a Peltier group. It is particularly advantageous to combine in each case such Peltier elements that are operated in the Peltier module 1 under substantially the same conditions.
  • Each of the Peltier groups 1 a to 1 d can be supplied separately by the multi-phase voltage regulator with a corresponding voltage.
  • the transistors 8a and / or 8b can be driven accordingly, whereby an applied and rectified mains voltage to the separate Peltier groups 1 a to 1 d is transmitted.
  • the multiphase voltage regulator contains only one switching regulator 6, a driver circuit 7, and a circuit part 8 with switching transistors 8a and 8b to the output power of the multi-phase voltage regulator and thus the power consumption of the Peltier groups 1 a to 1 d according to the respective requirements of To set the operating process.
  • only one transformer 13 having a primary winding 13a and secondary windings 13b is present. From the secondary windings 13b lead terminals with rectifier arrangements to the Peltier groups 1 a to 1 d, to supply them independently, ie with individually predetermined or set values with electricity.
  • the Peltier module 1 is also in each case operable with a lower operating voltage compared to a conventional Peltier module, which has no grouping and thus no Peltier groups.
  • the operating voltage is a DC voltage of about 60 V.
  • the circuit arrangements according to FIG. 1 and FIG. 2 are each designed in such a way that the Peltier module 1 can be operated in a first operating phase and in a second operating phase.
  • the Peltier module In a first operating phase, the Peltier module is supplied with energy and thus connected via the multiphase voltage regulator 6, 7, 8 and 9 by a corresponding circuit of the transistors 8a and 8b with the mains voltage.
  • the electrical power consumption of the Peltier module 1 or the power consumption of the individual Peltier groups 1 a to 1 d can be determined as operating parameters.
  • a second operating phase of the Peltier module 1 this is decoupled from the mains voltage, in which the transistors 8a and 8b are switched accordingly.
  • the temperature difference between the cold side and the warm side of the Peltier module 1 from an induced by the Seebeck effect thermoelectric voltage of the Peltier module 1 by means of the voltage transducer 9 are determined as operating parameters.
  • the temperature of the cold side of the Peltier module 1 is then determined from this obtained temperature difference and from the temperature information of the hot side, which is obtained by the NTC resistor or the temperature sensor 1 1. From these temperature information and the electrical power consumption of the Peltier module 1, the moisture already condensed out of the items of laundry contained in the household appliance can then be determined via characteristic curves and / or calculation models. From this moisture level can then be determined in turn the remaining moisture in the laundry.
  • a comparison with a reference moisture is then carried out, wherein the reference moisture characterizes a degree of moisture which at the moment of the drying process with regard to an optimal drying process should be achieved.
  • the further operating process of the domestic appliance and thus also the further drying process is then controlled, in which the Peltier groups 1 a to 1 d and thus the entire Peltier module 1 are controlled with regard to the achievement of the predetermined optimum drying.
  • the domestic appliance can also be designed as a dishwasher, which has a heat pump and a circuit arrangement just described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'invention concerne un circuit destiné à faire fonctionner un module Peltier (1) d'une pompe à chaleur dans un appareil électroménager, lequel est destiné au séchage de vêtements, comprenant une pluralité d'éléments Peltier (2). Le module Peltier (2) présente au moins deux groupes Peltier (1a, 1b, 1c, 1d), chacun comprenant au moins un élément Peltier, et un régulateur de tension multiphase (6, 7, 8, 9) est disposé de manière à être relié électriquement aux groupes Peltier (1a, 1b, 1c, 1d) et est destiné à réguler la tension de chaque groupe Peltier (1a, 1b, 1c, 1d) de manière séparée. L'invention concerne également un procédé destiné à faire fonctionner un module Peltier (1) d'une pompe à chaleur dans un appareil électroménager.
EP07728217.6A 2006-05-18 2007-04-18 Circuit et procédé pour faire fonctionner un module peltier d'une pompe à chaleur dans un appareil électroménager Not-in-force EP2024553B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07728217T PL2024553T3 (pl) 2006-05-18 2007-04-18 Układ obwodu i sposób przeznaczony do działania modułu Peltiera pompy ciepła w sprzęcie gospodarstwa domowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006023451A DE102006023451A1 (de) 2006-05-18 2006-05-18 Schaltungsanordnung und Verfahren zum Betreiben eines Peltier-Moduls einer Wärmepumpe eines Hausgeräts
PCT/EP2007/053755 WO2007134924A1 (fr) 2006-05-18 2007-04-18 Circuit et procédé pour faire fonctionner un module peltier d'une pompe à chaleur dans un appareil électroménager

Publications (2)

Publication Number Publication Date
EP2024553A1 true EP2024553A1 (fr) 2009-02-18
EP2024553B1 EP2024553B1 (fr) 2013-08-21

Family

ID=38279236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07728217.6A Not-in-force EP2024553B1 (fr) 2006-05-18 2007-04-18 Circuit et procédé pour faire fonctionner un module peltier d'une pompe à chaleur dans un appareil électroménager

Country Status (4)

Country Link
EP (1) EP2024553B1 (fr)
DE (1) DE102006023451A1 (fr)
PL (1) PL2024553T3 (fr)
WO (1) WO2007134924A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013098006A1 (fr) 2011-12-26 2013-07-04 Arcelik Anonim Sirketi Circuit de commande d'élément peltier pour appareils ménagers
WO2013098014A2 (fr) 2011-12-26 2013-07-04 Arcelik Anonim Sirketi Circuit de commande à élément peltier pour appareils ménagers
GB2540344A (en) 2015-07-06 2017-01-18 Evontix Ltd Control system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036383A (en) * 1958-08-26 1962-05-29 Philco Corp Drying apparatus
DE1410206A1 (de) * 1959-09-21 1968-10-10 Siemens Elektrogeraete Gmbh Waschmaschine
FR1262399A (fr) * 1960-07-13 1961-05-26 Thomson Houston Comp Francaise Perfectionnements aux machines à sécher le linge
DE4101644A1 (de) * 1991-01-22 1992-07-23 Wolfgang Dipl Phys Grothe Waermepumpenanlage
DE4242841C2 (de) * 1992-12-17 1995-05-11 Litef Gmbh Verfahren und Regeleinrichtung zur Temperaturregelung für ein peltierbetriebenes Temperiergerät
JPH0857194A (ja) * 1994-08-26 1996-03-05 Matsushita Electric Ind Co Ltd 除湿型電気衣類乾燥機
US6266962B1 (en) * 1999-10-07 2001-07-31 International Business Machines Corporation Highly reliable thermoelectric cooling apparatus and method
DE10141083B4 (de) * 2001-08-22 2006-02-16 Siemens Ag Verfahren und Anordnung zur Temperaturregelung eines Peltier-Elements
DE10334796A1 (de) * 2003-07-30 2005-02-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Gerätes mit wenigstens einem Teilprogrammschritt "Trocknen"

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007134924A1 *

Also Published As

Publication number Publication date
EP2024553B1 (fr) 2013-08-21
WO2007134924A1 (fr) 2007-11-29
DE102006023451A1 (de) 2007-11-22
PL2024553T3 (pl) 2014-01-31

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