EP0693662A1 - Reinigungsverfahren für Heizelemente eines Lufterhitzers, insbesondere eines Wäsche-Trockners - Google Patents

Reinigungsverfahren für Heizelemente eines Lufterhitzers, insbesondere eines Wäsche-Trockners Download PDF

Info

Publication number
EP0693662A1
EP0693662A1 EP95401683A EP95401683A EP0693662A1 EP 0693662 A1 EP0693662 A1 EP 0693662A1 EP 95401683 A EP95401683 A EP 95401683A EP 95401683 A EP95401683 A EP 95401683A EP 0693662 A1 EP0693662 A1 EP 0693662A1
Authority
EP
European Patent Office
Prior art keywords
overheating
cycle
heating element
heating
heating elements
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
EP95401683A
Other languages
English (en)
French (fr)
Other versions
EP0693662B1 (de
Inventor
Jean-Luc Pauli
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
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 Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Publication of EP0693662A1 publication Critical patent/EP0693662A1/de
Application granted granted Critical
Publication of EP0693662B1 publication Critical patent/EP0693662B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment

Definitions

  • the present invention relates to a method for cleaning the heating elements of an air heating system. It applies in particular to the heating elements of tumble dryers, the latter being condensing or circulating air.
  • open fire heating elements consist of resistive turns kept isolated from the metal structure for example by mica or soapstone elements. These heating elements at open fire are advantageous because they allow in particular good heat exchanges, they have a low thermal inertia and radiate heat satisfactorily.
  • the surface occupied by the heating wires must occupy the maximum cross-section of air.
  • the turns are very nested between them. They are staggered, for example.
  • Another solution could be to increase the number of filters upstream of the heating elements, but such a solution is too expensive.
  • the object of the invention is to overcome the aforementioned drawbacks, and in particular to make it possible to prevent laundry fluff from forming on dryer heating elements, and that in an economical manner.
  • the subject of the invention is a method of cleaning a heating element of an air heating system, characterized in that it consists, during an operating cycle, of creating an overheating of the heating element for at least a controlled period of time.
  • the main advantages of the invention are that it adapts to all air heating systems comprising heating elements of the type of those with open fire, in particular to tumble dryers, that it adapts equally well to machines with electronic control than with electromechanical control, which it allows in certain cases not to release odor, and which it is simple to implement.
  • FIG. 1 represents by FIG. 1, an exemplary embodiment of a heating element of a dryer.
  • Figure 1 shows an exemplary embodiment of a heating element with open fire used in a dryer.
  • This is for example made up of turns 1 corresponding to one or more resistive conductors in parallel. These turns actually form helical electrical conductors with spirals. these conductors are kept isolated from each other and from the structure of the dryer by insulating supports 2, in mica for example.
  • the dust and the stuffing of linen deposited on the turns and between them obstructing the passage of air between them, cause the degradation of the heating element, by obstruction of this passage in particular or by deformation then breakage of one or more helical conductors. They can also cause ignition.
  • the method according to the invention consists during an operating cycle, preferably at each cycle, of creating an overheating of the heating element for at least one controlled period of time.
  • the method therefore consists in a drying cycle, preferably in each cycle, to create an overheating of the heating element for at least a period of time. control. Several periods of overheating can be achieved in each cycle.
  • This overheating can be achieved for example by reducing the flow of air passing through the heating element, in particular by eliminating it. It can also be carried out for example by increasing the intensity of current passing through the electrical conductors of the heating element, by causing for example a momentary overcurrent.
  • periods of overheating lasting only a few seconds are sufficient, to suppress the accumulations produced, when they are executed regularly, preferably at each drying cycle.
  • the regulatory safety circuit breakers against accidental overheating also have, for example, reaction times greater than the duration of the overheating periods used in the method according to the invention. In this way no untimely machine shutdown occurs.
  • the duration of the overheating period can be a few seconds, 4 to 5 seconds for example. In fact, it lasts the time necessary for the surface temperature of the electrical conductors of the heating element to allow it burn the accumulating elements that have gathered around it.
  • Overheating can for example be carried out at the start of the cycle, or even at the end of the cycle. It can also be executed in the middle of the cycle, and more generally at any time during the cycle.
  • An additional advantage of the method according to the invention is that it does not give off an odor since the overheating operation can be carried out at each cycle.
  • the method according to the invention is not limited only to cleaning the heating elements of a tumble dryer, but more generally to all air heating systems based on heating elements of the open fire type in particular. If the air heating system has long operating cycles, especially if it is an ambient air heating system for building interiors, several short-term overheats for example, can be performed in the operating cycle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP95401683A 1994-07-22 1995-07-13 Reinigungsverfahren für Heizelemente eines Lufterhitzers, insbesondere eines Wäschetrockners Expired - Lifetime EP0693662B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409100 1994-07-22
FR9409100A FR2722869B1 (fr) 1994-07-22 1994-07-22 1procede de nettoyage des elements c2chauffage d'air, notamment d'un sec

Publications (2)

Publication Number Publication Date
EP0693662A1 true EP0693662A1 (de) 1996-01-24
EP0693662B1 EP0693662B1 (de) 1998-01-14

Family

ID=9465662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401683A Expired - Lifetime EP0693662B1 (de) 1994-07-22 1995-07-13 Reinigungsverfahren für Heizelemente eines Lufterhitzers, insbesondere eines Wäschetrockners

Country Status (4)

Country Link
EP (1) EP0693662B1 (de)
DE (1) DE69501438T2 (de)
ES (1) ES2111375T3 (de)
FR (1) FR2722869B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100565240B1 (ko) 2004-05-13 2006-03-30 엘지전자 주식회사 의류건조기의 히터
EP2013402A4 (de) * 2006-04-17 2009-12-30 Lg Electronics Inc Trockner und betriebsverfahren dafür

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541303A (en) * 1967-11-08 1970-11-17 Gen Motors Corp Lint collecting and burning screen
US4825560A (en) * 1986-12-29 1989-05-02 Hitachi, Ltd. Electric clothes dryer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3541303A (en) * 1967-11-08 1970-11-17 Gen Motors Corp Lint collecting and burning screen
US4825560A (en) * 1986-12-29 1989-05-02 Hitachi, Ltd. Electric clothes dryer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100565240B1 (ko) 2004-05-13 2006-03-30 엘지전자 주식회사 의류건조기의 히터
EP2013402A4 (de) * 2006-04-17 2009-12-30 Lg Electronics Inc Trockner und betriebsverfahren dafür

Also Published As

Publication number Publication date
FR2722869B1 (fr) 1996-08-23
FR2722869A1 (fr) 1996-01-26
ES2111375T3 (es) 1998-03-01
DE69501438D1 (de) 1998-02-19
DE69501438T2 (de) 1998-04-23
EP0693662B1 (de) 1998-01-14

Similar Documents

Publication Publication Date Title
FR2693894A1 (fr) Procédé pour modifier les caractéristiques d'une surface de métal.
FR2475191A1 (fr) Ensemble chauffant a rayonnement pour cuisinieres a plaque de cuisson lisse
EP0693662B1 (de) Reinigungsverfahren für Heizelemente eines Lufterhitzers, insbesondere eines Wäschetrockners
EP1313905B1 (de) Verfahren zum trocknen von wäsche und maschine zur durchführung dieses verfahrens
FR2979149A1 (fr) Dispositif de surveillance thermique des bornes d'un dispositif de connexion electrique
CA2571607A1 (en) Safety plug suitable for the connection to an electric current outlet
WO2012062886A1 (en) A dishwasher comprising a dehumidifying unit
EP3879200A1 (de) Heizkörper mit temperaturbegrenzung
FR2655805A1 (fr) Circuit de commande d'element chauffant.
FR2793104A1 (fr) Procede de pilotage d'un element chauffant d'appareil electrique de chauffage de liquide
EP0351276A1 (de) Verfahren zur Feststellung eines Fehlerzustandes in einem Wäschetrockner und dieses Verfahren anwendender Wäschetrockner
FR2770631A1 (fr) Procede d'optimisation de la consommation d'energie d'une machine de sechage par courant d'air de produits ou materiaux disposes dans une enceinte
FR2521342A1 (fr) Thermorupteur
FR3073701A1 (fr) Dispositif de limitation ou de regulation en temperature pour un ustensile de cuisine
FR2546542A1 (fr) Seche-linge muni d'un dispositif de securite thermique
CN101884497B (zh) 微压力电饭煲及其控制方法
EP1156704B1 (de) Tauchheizkörper formende Vorrichtung zur Verwendung insbesondere in Heizkörpern von Heisswasserkreislaufheizungen
FR2675004A3 (fr) Starter pour des lampes a decharge a basse pression alimentees par un courant alternatif.
TW202413767A (zh) 衣物處理裝置
GB2363046A (en) Thick film element protection arrangement
RU2256301C2 (ru) Бытовой электронагревательный прибор
EP0648992A1 (de) Vorrichtung zur Steuerung des Heisslufttemperaturs einer Maschine zum Waschen und/oder zum Trocknen
FR2920160A1 (fr) Procede de limitation d'un pic de temperature d'un generateur de vapeur d'une machine a secher le linge et machine a secher le linge
CN102409509B (zh) 用于确定处置引入到处理衣物的家用电器内的衣物的处理过程的停止时刻的方法
FR2523693A1 (fr) Procede et dispositif assurant la securite de fonctionnement d'un bruleur, en particulier a gaz

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19960406

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)
RTI1 Title (correction)
17Q First examination report despatched

Effective date: 19970320

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69501438

Country of ref document: DE

Date of ref document: 19980219

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2111375

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980211

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20000711

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20000724

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010714

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010714

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

EUG Se: european patent has lapsed

Ref document number: 95401683.8

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20020810

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050713

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070809

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090203

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090731

Year of fee payment: 15

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100713

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: FAGORBRANDT SAS, FR

Effective date: 20110826

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110729

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130329

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120731