EP1078120B1 - Electric iron - Google Patents

Electric iron Download PDF

Info

Publication number
EP1078120B1
EP1078120B1 EP99918046A EP99918046A EP1078120B1 EP 1078120 B1 EP1078120 B1 EP 1078120B1 EP 99918046 A EP99918046 A EP 99918046A EP 99918046 A EP99918046 A EP 99918046A EP 1078120 B1 EP1078120 B1 EP 1078120B1
Authority
EP
European Patent Office
Prior art keywords
counter
heating element
electric heating
electric
supply circuit
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.)
Expired - Lifetime
Application number
EP99918046A
Other languages
German (de)
French (fr)
Other versions
EP1078120A1 (en
Inventor
Benoít HERVIEU
Joseph Letorey
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.)
SEB SA
Original Assignee
Moulinex SA
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 Moulinex SA filed Critical Moulinex SA
Publication of EP1078120A1 publication Critical patent/EP1078120A1/en
Application granted granted Critical
Publication of EP1078120B1 publication Critical patent/EP1078120B1/en
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
    • D06F75/00—Hand irons
    • D06F75/08—Hand irons internally heated by electricity
    • D06F75/26—Temperature control or indicating arrangements

Definitions

  • the present invention relates to irons electrics which include a heated soleplate by means of an electric heating resistor and a system thermal regulation, in which a command indicates the temperature setpoint corresponding to the fabric to be ironed, a sensor gives the image of the sole temperature, and a system of management controls opening or closing, depending the difference between the setpoint and the measurement, of the circuit supply of the electric heating resistance.
  • a security system which detects the position of the iron, on the heel or on the sole, and cutting off the power of the heating resistance when the iron is left upright on the heel for a period greater than a certain limit.
  • Such irons are for example described in document DE 3,703,884 and in particular in document WO-A-8203 520 in which the iron's power supply is controlled by a electronic counter subordinated to a motion detector.
  • Such a system is intended to prevent burns accidental to the user or his entourage, when the iron is unused and left on. It allows also to prevent the device from being subjected to prolonged and unnecessary heating cycles, when this is unintentionally left energized.
  • the invention proposes to remedy these drawbacks and make an iron of the type previously described, fitted with a sensorless security system position, capable of reliably detecting stop how to use the device.
  • the system detects a representative quantity the amount of heat delivered by the device, characteristic of contact of the sole with a fabric or with ambient air.
  • the electronic module includes a switch mounted in series with the electric heating resistance, which is activated in response to a signal generated by a first counter.
  • the first counter includes a circuit integrated programmable, which has at least one channel power supply, a channel for receiving a setting signal at zero, one exit channel, and generation means clock frequency activated upon power up iron.
  • the first counter delivers a signal opening to a relay whose contacts form the switch, once he has carried out an operation of counting of a duration greater than a predetermined time T1, without receiving a reset signal, T1 being greater at T2.
  • the first counter simultaneously delivers an opening signal to a relay whose contacts form the switch and a signal blocking clock frequency generation means associated with first counter, once it has carried out an operation counting of a duration greater than a predetermined time T1, without receiving a reset signal, T1 being greater than T2.
  • the security system includes rearming means can be operated by the user, so as to close relay and reactivate the generation means of clock frequency associated with the first counter, when the iron is on.
  • the reset means when activated by the user, emit a reset signal simultaneously to the first and second counter.
  • This other embodiment allows, always by observation of the operation of the heating resistance, to determine if it is frequently used to compensate for heat losses from the sole, and cut off the power otherwise, assumed characteristic of a state of non-use.
  • the power circuit is shown 1 of the electric heating resistance (2) intended to heat the soleplate of an iron, the electric power being supplied by the domestic network (3).
  • the iron is either a dry type iron, either a steam iron.
  • the temperature of the sole is regulated by means of a control member (4), generally actuated by the user, who sets the set temperature, temperature sensor (5) located near the sole and which gives the image of the temperature of the sole, and a management system (6), which activates a first switch (7) placed in the supply circuit (1) of the electric heating resistance (2), function of the difference between the temperature of the sole and the set temperature, so that the temperature of the sole is constantly located within a determined range around the set temperature.
  • this regulatory system is simply consisting of a mechanical thermostat or, in upper range devices, includes a potentiometer and electronic regulation means.
  • the resistor supply circuit (1) electric heater (2) comprises, according to the invention, a second switch (8) actuated by an electronic module (9) when the security system (10) detects a state of non-use of the device beyond a certain limit.
  • the security system (10) receives a signal (11) management system (6), representative of the state of the first switch (7), and therefore of the powered state or not supplied with the electric heating resistance (2), the second switch (8) being closed in the initial state the security system (10), at the time of connection of the device on the sector.
  • FIG 2 there is shown a security system according to a preferred embodiment of the invention, in which the security system (10) is supplied with current home network (3), via a so-called “positive” channel (P) and a so-called channel “neutral” (N), said security system (10) taking also the potential at one of the resistance's terminals heating (2) via a third channel (X), such that said heating resistor (2) is located between the "neutral" channel (N) and the third channel (X).
  • P positive
  • N channel "neutral”
  • X third channel
  • the security system (10) comprises a first two-way connector (12) for connecting the switch (8) with the heating resistor (2), the two incoming channels being the positive channel (P) and the third way (X).
  • the security system (1) comprises a second two-way connector (13), which receives the potential by neutral channel (N) and information of the heating resistance (2) by the third channel (X).
  • the electronic module (9) comprises two modules (14, 15) processing the electrical signals passing through the three channels (N, P, X) so as to obtain continuous signals and of admissible intensity by the components, namely respectively a reference potential (V SS ), a potential (V CC ) defining with it a supply voltage for the active components of the electronic module (9), and a status information potential (x) of the heating resistor (2 ).
  • V SS reference potential
  • V CC potential
  • x status information potential
  • the electronic module (9) comprises a first and a second counter (21, 22) each comprising a programmable integrated circuit, which has at least one supply path (A1, A2) set to potential (V DC ) when the device is energized, a channel for receiving a reset signal (R1, R2), an output channel (S1, S2), and clock frequency generation means supplied by a power supply channel for the clock frequency generation means (H1, H2).
  • the electronic module (9) further comprises a first bipolar transistor (16), the base of which is connected to the output channel (S1) of the first programmable integrated circuit (21) via a resistor (18), the transmitter is connected to the power supply channel of the clock frequency generation means (H1) of the first counter (21), and the collector to the reference potential line (V SS ); a second bipolar transistor (17), the base of which receives the signal corresponding to the status information potential (x) of the heating resistor, the transmitter is connected to the power supply path of the frequency generation means of clock (H2) of the second programmable integrated circuit (22), and the collector to the reference potential line (V SS ).
  • the signal delivered by the first counter (21) on its output channel (S1) is transmitted to a relay (20), which performs opening or closing of the supply circuit of the heating resistance, via the switch (8) formed by its contacts.
  • the generation means clock frequency of the first counter (21) are supplied and the heating resistor being supplied, the clock frequency generation means of the second counter (22) are also supplied.
  • the second counter (22) is incremented as long as the resistance heater (2) is powered, and achieves the accumulation of feeding time of said resistor.
  • the second counter (22) emits an end of cycle signal on its channel output (S2), through a resistor (19), as soon as it performed a counting operation of a longer duration at a predetermined time T2. This end signal cycle is directed to the reset path (R2) of the second counter (22) and in parallel on the setting track zero (R1) of the first counter (21).
  • the first counter (21) If the first counter (21) has performed an operation counting of a duration greater than a predetermined time T1, without having received a reset signal on its reception channel (R1), it transmits on its exit channel (S1) a signal to the relay (20), which opens the circuit of the heating resistance, this signal break also realizing, via the first transistor (16), the blocking of the frequency generation means of the first counter.
  • Resetting means (23) are provided to allow the user to turn the iron back on and to reset the security system, when it cut the power to the heating element continued upon detection of a prolonged state of non-use.
  • the security system cuts the circuit supply of the heating resistor (2), so reversible thanks to the reset means (23), if, at during a time interval T1, for example of the order 6 minutes, the heating time of the heating element has not reached a T2 limit, for example of the order of 25 sec., Condition characterizing a state of non-use of the device.

Description

La présente invention se rapporte aux fers à repasser électriques qui comprennent une semelle chauffée au moyen d'une résistance électrique chauffante et un système de régulation thermique, dans lequel un organe de commande indique la valeur de consigne en température correspondant au tissu à repasser, un capteur donne l'image de la température de la semelle, et un système de gestion commande l'ouverture ou la fermeture, en fonction de l'écart entre la consigne et la mesure, du circuit d'alimentation de la résistance électrique chauffante.The present invention relates to irons electrics which include a heated soleplate by means of an electric heating resistor and a system thermal regulation, in which a command indicates the temperature setpoint corresponding to the fabric to be ironed, a sensor gives the image of the sole temperature, and a system of management controls opening or closing, depending the difference between the setpoint and the measurement, of the circuit supply of the electric heating resistance.

Dans certains fers à repasser connus de ce type, il est prévu un système de sécurité détectant la position du fer, sur le talon ou sur la semelle, et coupant l'alimentation de la résistance chauffante lorsque le fer est laissé en position verticale sur le talon pendant une période supérieure à une certaine limite. De tels fers sont par exemple décrits dans le document DE 3 703 884 et notamment dans le document WO-A-8203 520 dans lequel l'alimentation électrique du fer est contrôlé par un compteur électronique subordonné à un détecteur de mouvement.In some known irons of this type, a security system is provided which detects the position of the iron, on the heel or on the sole, and cutting off the power of the heating resistance when the iron is left upright on the heel for a period greater than a certain limit. Such irons are for example described in document DE 3,703,884 and in particular in document WO-A-8203 520 in which the iron's power supply is controlled by a electronic counter subordinated to a motion detector.

Un tel système est destiné à éviter des brûlures accidentelles à l'utilisateur ou à son entourage, lorsque le fer est inutilisé et laissé sous tension. Il permet également d'éviter que l'appareil ne soit soumis à des cycles de chauffe prolongés et inutiles, lorsque celui-ci est involontairement laissé sous tension.Such a system is intended to prevent burns accidental to the user or his entourage, when the iron is unused and left on. It allows also to prevent the device from being subjected to prolonged and unnecessary heating cycles, when this is unintentionally left energized.

Un tel système présente néanmoins l'inconvénient de recourir à un capteur physique de position, qui grève le coût de revient de l'appareil, augmente son encombrement et présente une fiabilité décroissante avec le vieillissement et les cycles d'utilisation. Such a system nevertheless has the drawback of use a physical position sensor, which strikes the cost of the device, increases its size and has decreasing reliability with aging and duty cycles.

L'invention se propose de remédier à ces inconvénients et de réaliser un fer à repasser du type précédemment décrit, muni d'un système de sécurité sans capteur de position, capable de détecter de façon fiable l'arrêt d'utilisation de l'appareil.The invention proposes to remedy these drawbacks and make an iron of the type previously described, fitted with a sensorless security system position, capable of reliably detecting stop how to use the device.

Selon l'invention, le fer comporte un système de sécurité comprenant un module électronique qui :

  • a)reçoit du système de gestion l'information de fermeture du circuit d'alimentation de la résistance électrique chauffante,
  • b)réalise sur un intervalle de temps fixé la somme des durées d'alimentation,
  • c)et ouvre le circuit d'alimentation de la résistance électrique chauffante si la valeur ainsi obtenue est inférieure à une valeur de seuil prédéterminée.
    • According to the invention, the iron comprises a security system comprising an electronic module which:
  • a) receives from the management system the information on the closing of the supply circuit of the electric heating resistance,
  • b) performs the sum of the supply durations over a fixed time interval,
  • c) and opens the supply circuit of the electric heating resistance if the value thus obtained is less than a predetermined threshold value.

    • Ainsi le système détecte-t-il une grandeur représentative de la quantité de chaleur délivrée par l'appareil, caractéristique d'un contact de la semelle avec un tissu ou avec l'air ambiant.Thus the system detects a representative quantity the amount of heat delivered by the device, characteristic of contact of the sole with a fabric or with ambient air.

    Suivant une caractéristique avantageuse de l'invention, le module électronique comporte un interrupteur monté en série avec la résistance électrique chauffante, qui est actionné en réponse à un signal élaboré par un premier compteur.According to an advantageous characteristic of the invention, the electronic module includes a switch mounted in series with the electric heating resistance, which is activated in response to a signal generated by a first counter.

    D'autre part, le premier compteur comporte un circuit intégré programmable, qui présente au moins une voie d'alimentation, une voie de réception d'un signal de mise à zéro, une voie de sortie, et des moyens de génération de fréquence d'horloge activés dès la mise sous tension du fer.On the other hand, the first counter includes a circuit integrated programmable, which has at least one channel power supply, a channel for receiving a setting signal at zero, one exit channel, and generation means clock frequency activated upon power up iron.

    De plus, le premier compteur délivre un signal d'ouverture à un relais dont les contacts forment l'interrupteur, dès lors qu'il a effectué une opération de comptage d'une durée supérieure à un temps prédéterminé T1, sans recevoir de signal de mise à zéro, T1 étant supérieur à T2.In addition, the first counter delivers a signal opening to a relay whose contacts form the switch, once he has carried out an operation of counting of a duration greater than a predetermined time T1, without receiving a reset signal, T1 being greater at T2.

    De préférence, le premier compteur délivre simultanément un signal d'ouverture à un relais dont les contacts forment l'interrupteur et un signal de blocage des moyens de génération de fréquence d'horloge associés au premier compteur, dès lors qu'il a effectué une opération de comptage d'une durée supérieure à un temps prédéterminé T1, sans recevoir de signal de mise à zéro, T1 étant supérieur à T2.Preferably, the first counter simultaneously delivers an opening signal to a relay whose contacts form the switch and a signal blocking clock frequency generation means associated with first counter, once it has carried out an operation counting of a duration greater than a predetermined time T1, without receiving a reset signal, T1 being greater than T2.

    Selon une autre caractéristique de l'invention, le système de sécurité comporte des moyens de réarmement pouvant être actionnés par l'utilisateur, de façon à fermer le relais et réactiver les moyens de génération de fréquence d'horloge associés au premier compteur, lorsque le fer est sous tension.According to another characteristic of the invention, the security system includes rearming means can be operated by the user, so as to close relay and reactivate the generation means of clock frequency associated with the first counter, when the iron is on.

    Les moyens de réarmement, lorsqu'ils sont actionnés par l'utilisateur, émettent un signal de mise à zéro simultanément vers les premier et second compteur.The reset means, when activated by the user, emit a reset signal simultaneously to the first and second counter.

    Selon un autre mode de réalisation, le système de sécurité comprend un module électronique, qui :

  • a) reçoit du système de gestion l'information de fermeture du circuit d'alimentation de la résistance électrique chauffante,
  • b) compte sur un intervalle de temps fixé le nombre d'alternances entre les états ouvert et fermé du circuit d'alimentation de la résistance électrique chauffante, et ouvre le circuit d'alimentation de la résistance électrique chauffante si le nombre ainsi obtenu est inférieur à une valeur de seuil prédéterminée.
    • According to another embodiment, the security system comprises an electronic module, which:
  • a) receives from the management system the information on the closing of the supply circuit of the electric heating resistance,
  • b) counts over a fixed time interval the number of alternations between the open and closed states of the supply circuit of the electric heating resistor, and opens the supply circuit of the electric heating resistor if the number thus obtained is less at a predetermined threshold value.

    • Cet autre mode de réalisation permet, toujours par observation du fonctionnement de la résistance chauffante, de déterminer si celle-ci est fréquemment sollicitée pour compenser des pertes de chaleur de la semelle, et de couper l'alimentation dans le cas contraire, supposé caractéristique d'un état de non-utilisation.This other embodiment allows, always by observation of the operation of the heating resistance, to determine if it is frequently used to compensate for heat losses from the sole, and cut off the power otherwise, assumed characteristic of a state of non-use.

    Les différentes caractéristiques ainsi que les avantages de l'invention ressortiront d'ailleurs de la description qui suit, donnée à titre d'exemple non limitatif, en se référant aux dessins annexés dans lesquels :

    • la figure 1 est un schéma fonctionnel d'un système de sécurité selon l'invention ;
    • la figure 2 est un schéma fonctionnel d'un système de sécurité suivant un mode préféré de l'invention ;
    • la figure 3 est un graphe liant l'état électrique de la résistance et le temps, dans un cas d'utilisation et un cas de non-utilisation d'un fer à repasser.
    The various characteristics as well as the advantages of the invention will emerge moreover from the description which follows, given by way of nonlimiting example, with reference to the appended drawings in which:
    • Figure 1 is a block diagram of a security system according to the invention;
    • Figure 2 is a block diagram of a security system according to a preferred embodiment of the invention;
    • Figure 3 is a graph linking the electrical state of resistance and time, in a case of use and a case of non-use of an iron.

    Sur la figure 1, on a représenté le circuit d'alimentation 1 de la résistance électrique chauffante (2) destinée à chauffer la semelle d'un fer à repasser, la puissance électrique étant fournie par le réseau domestique (3). Le fer à repasser est soit un fer du type sec, soit un fer à vapeur.In Figure 1, the power circuit is shown 1 of the electric heating resistance (2) intended to heat the soleplate of an iron, the electric power being supplied by the domestic network (3). The iron is either a dry type iron, either a steam iron.

    La température de la semelle est régulée au moyen d'un organe de commande (4), généralement actionné par l'utilisateur, qui fixe la température de consigne, d'un capteur de température (5) situé à proximité de la semelle et qui donne l'image de la température de la semelle, et d'un système de gestion (6), qui actionne un premier interrupteur (7) placé dans le circuit d'alimentation (1) de la résistance électrique chauffante (2), en fonction de l'écart entre la température de la semelle et la température de consigne, de sorte que la température de la semelle soit constamment située dans une plage déterminée autour de la température de consigne.The temperature of the sole is regulated by means of a control member (4), generally actuated by the user, who sets the set temperature, temperature sensor (5) located near the sole and which gives the image of the temperature of the sole, and a management system (6), which activates a first switch (7) placed in the supply circuit (1) of the electric heating resistance (2), function of the difference between the temperature of the sole and the set temperature, so that the temperature of the sole is constantly located within a determined range around the set temperature.

    De façon courante, ce système de régulation est simplement constitué d'un thermostat mécanique ou, dans les appareils de gamme supérieure, comprend un potentiomètre et des moyens électroniques de régulation.Currently, this regulatory system is simply consisting of a mechanical thermostat or, in upper range devices, includes a potentiometer and electronic regulation means.

    Le circuit d'alimentation (1) de la résistance électrique chauffante (2) comporte, selon l'invention, un second interrupteur (8) actionné par un module électronique (9) lorsque le système de sécurité (10) détecte un état de non-utilisation de l'appareil au-delà d'une certaine limite.The resistor supply circuit (1) electric heater (2) comprises, according to the invention, a second switch (8) actuated by an electronic module (9) when the security system (10) detects a state of non-use of the device beyond a certain limit.

    Le système de sécurité (10) reçoit un signal (11) dû système de gestion (6), représentatif de l'état du premier interrupteur (7), et donc de l'état alimenté ou non-alimenté de la résistance électrique chauffante (2), le second interrupteur (8) étant fermé dans l'état initial du système de sécurité (10), au moment du branchement de l'appareil sur le secteur.The security system (10) receives a signal (11) management system (6), representative of the state of the first switch (7), and therefore of the powered state or not supplied with the electric heating resistance (2), the second switch (8) being closed in the initial state the security system (10), at the time of connection of the device on the sector.

    Sur la figure 2, on a représenté un système de sécurité suivant un mode préféré de l'invention, dans lequel le système de sécurité (10) est alimenté en courant alternatif par le réseau domestique (3), par l'intermédiaire d'une voie dite "positive" (P) et une voie dite "neutre" (N), ledit système de sécurité (10) prélevant également le potentiel à l'une des bornes de la résistance chauffante (2) par l'intermédiaire d'une troisième voie (X), telle que ladite résistance chauffante (2) soit située entre la voie "neutre" (N) et la troisième voie (X) .In Figure 2, there is shown a security system according to a preferred embodiment of the invention, in which the security system (10) is supplied with current home network (3), via a so-called "positive" channel (P) and a so-called channel "neutral" (N), said security system (10) taking also the potential at one of the resistance's terminals heating (2) via a third channel (X), such that said heating resistor (2) is located between the "neutral" channel (N) and the third channel (X).

    Le système de sécurité (10) comporte un premier connecteur (12) à deux voies permettant de connecter l'interrupteur (8) avec la résistance chauffante (2), les deux voies entrantes étant la voie positive (P) et la troisième voie (X). Le système de sécurité (1) comporte un second connecteur (13) à deux voies, qui reçoit le potentiel de référence par la voie neutre (N) et l'information d'état de la résistance chauffante (2) par la troisième voie (X).The security system (10) comprises a first two-way connector (12) for connecting the switch (8) with the heating resistor (2), the two incoming channels being the positive channel (P) and the third way (X). The security system (1) comprises a second two-way connector (13), which receives the potential by neutral channel (N) and information of the heating resistance (2) by the third channel (X).

    Le module électronique (9) comporte deux modules (14, 15) traitant les signaux électriques transitant par les trois voies (N, P, X) de façon à obtenir des signaux continus et d'intensité admissible par les composants, à savoir respectivement un potentiel de référence (VSS), un potentiel (VCC) définissant avec lui une tension d'alimentation des composants actifs du module électronique (9), et un potentiel d'information d'état (x) de la résistance chauffante (2).The electronic module (9) comprises two modules (14, 15) processing the electrical signals passing through the three channels (N, P, X) so as to obtain continuous signals and of admissible intensity by the components, namely respectively a reference potential (V SS ), a potential (V CC ) defining with it a supply voltage for the active components of the electronic module (9), and a status information potential (x) of the heating resistor (2 ).

    Le module électronique (9) comporte un premier et un second compteur (21, 22) comprenant chacun un circuit intégré programmable, qui présente au moins une voie d'alimentation (A1, A2) mise au potentiel (VCC) lorsque l'appareil est sous tension, une voie de réception d'un signal de mise à zéro (R1, R2), une voie de sortie (S1, S2), et des moyens de génération de fréquence d'horloge alimentés par une voie d'alimentation des moyens de génération de fréquence d'horloge (H1, H2).The electronic module (9) comprises a first and a second counter (21, 22) each comprising a programmable integrated circuit, which has at least one supply path (A1, A2) set to potential (V DC ) when the device is energized, a channel for receiving a reset signal (R1, R2), an output channel (S1, S2), and clock frequency generation means supplied by a power supply channel for the clock frequency generation means (H1, H2).

    Le module électronique (9) comporte en outre un premier transistor bipolaire (16), dont la base est reliée à la voie de sortie (S1) du premier circuit intégré programmable (21) par l'intermédiaire d'une résistance (18), l'émetteur est relié à la voie d'alimentation des moyens de génération de fréquence d'horloge (H1) du premier compteur (21), et le collecteur à la ligne de potentiel de référence (VSS) ; un second transistor bipolaire (17), dont la base reçoit le signal correspondant au potentiel d'information d'état (x) de la résistance chauffante, l'émetteur est relié à la voie d'alimentation des moyens de génération de fréquence d'horloge (H2) du second circuit intégré programmable (22), et le collecteur à la ligne de potentiel de référence (VSS) .The electronic module (9) further comprises a first bipolar transistor (16), the base of which is connected to the output channel (S1) of the first programmable integrated circuit (21) via a resistor (18), the transmitter is connected to the power supply channel of the clock frequency generation means (H1) of the first counter (21), and the collector to the reference potential line (V SS ); a second bipolar transistor (17), the base of which receives the signal corresponding to the status information potential (x) of the heating resistor, the transmitter is connected to the power supply path of the frequency generation means of clock (H2) of the second programmable integrated circuit (22), and the collector to the reference potential line (V SS ).

    Le signal délivré par le premier compteur (21) sur sa voie de sortie (S1) est transmis à un relais (20), qui exécute l'ouverture ou la fermeture du circuit d'alimentation de la résistance chauffante, via l'interrupteur (8) formé par ses contacts. The signal delivered by the first counter (21) on its output channel (S1) is transmitted to a relay (20), which performs opening or closing of the supply circuit of the heating resistance, via the switch (8) formed by its contacts.

    A la mise sous tension du fer, les moyens de génération de fréquence d'horloge du premier compteur (21) sont alimentés et la résistance chauffante étant alimentée, les moyens de génération de fréquence d'horloge du second compteur (22) sont également alimentés. Le second compteur (22) est incrémenté tant que la résistance chauffante (2) est alimentée, et réalise le cumul des temps d'alimentation de ladite résistance. Le second compteur (22) émet un signal de fin de cycle sur sa voie de sortie (S2), à travers une résistance (19), dès qu'il a effectué une opération de comptage d'une durée supérieure à un temps T2 prédéterminé. Ce signal de fin de cycle est dirigé sur la voie de mise à zéro (R2) du second compteur (22) et parallèlement sur la voie de mise à zéro (R1) du premier compteur (21).When the iron is switched on, the generation means clock frequency of the first counter (21) are supplied and the heating resistor being supplied, the clock frequency generation means of the second counter (22) are also supplied. The second counter (22) is incremented as long as the resistance heater (2) is powered, and achieves the accumulation of feeding time of said resistor. The second counter (22) emits an end of cycle signal on its channel output (S2), through a resistor (19), as soon as it performed a counting operation of a longer duration at a predetermined time T2. This end signal cycle is directed to the reset path (R2) of the second counter (22) and in parallel on the setting track zero (R1) of the first counter (21).

    Si le premier compteur (21) a effectué une opération de comptage d'une durée supérieure à un temps prédéterminé T1, sans avoir reçu de signal de mise à zéro sur sa voie de réception (R1), il émet sur sa voie de sortie (S1) un signal au relais (20), qui ouvre le circuit d'alimentation de la résistance chauffante, ce signal de coupure réalisant également, via le premier transistor (16), le blocage des moyens de génération de fréquence d'horloge du premier compteur.If the first counter (21) has performed an operation counting of a duration greater than a predetermined time T1, without having received a reset signal on its reception channel (R1), it transmits on its exit channel (S1) a signal to the relay (20), which opens the circuit of the heating resistance, this signal break also realizing, via the first transistor (16), the blocking of the frequency generation means of the first counter.

    Des moyens de réarmement (23) sont prévus pour permettre à l'utilisateur de remettre le fer sous tension et de réinitialiser le système de sécurité, lorsque celui-ci a coupé l'alimentation de la résistance chauffante suite à la détection d'un état prolongé de non-utilisation. Resetting means (23) are provided to allow the user to turn the iron back on and to reset the security system, when it cut the power to the heating element continued upon detection of a prolonged state of non-use.

    Ces moyens de réarmement (23), lorsqu'ils sont actionnés par l'utilisateur, émettent une impulsion sur les voies de mise à zéro (R1, R2) des premier et second compteurs (21, 22), ce qui a pour effet de rétablir la voie de sortie (S1) du premier compteur (21) dans son état initial, et ainsi de débloquer ses moyens de génération de fréquence d'horloge et de provoquer, par un nouveau signal d'ouverture du relais (20), la fermeture de l'interrupteur (8) et donc du circuit d'alimentation de la résistance chauffante (2).These reset means (23), when activated by the user, emit a pulse on the reset channels (R1, R2) of the first and second counters (21, 22), which has the effect of restoring the path output (S1) of the first counter (21) in its state initial, and thus unlock its generation means of clock frequency and cause, by a new relay open signal (20), switch closed (8) and therefore of the supply circuit of the heating resistance (2).

    Il ressort du système précédemment décrit, que le système de sécurité suivant l'invention coupe le circuit d'alimentation de la résistance chauffante (2), de façon réversible grâce aux moyens de réarmement (23), si, au cours d'un intervalle de temps T1, par exemple de l'ordre de 6 mn, le temps de chauffe de la résistance chauffante n'a pas atteint une limite T2, par exemple de l'ordre de 25 sec., condition caractérisant un état de non-utilisation de l'appareil.It emerges from the system described above, that the security system according to the invention cuts the circuit supply of the heating resistor (2), so reversible thanks to the reset means (23), if, at during a time interval T1, for example of the order 6 minutes, the heating time of the heating element has not reached a T2 limit, for example of the order of 25 sec., Condition characterizing a state of non-use of the device.

    En effet, comme il apparaít sur la figure 3, il est possible de caractériser un état d'utilisation correspondant au graphe 3a, par rapport à un état de non-utilisation correspondant au graphe 3b, soit par une durée totale d'alimentation supérieure, soit par une fréquence des phases d'alimentation supérieure.Indeed, as it appears in Figure 3, it is possible to characterize a corresponding state of use in graph 3a, in relation to a state of non-use corresponding to graph 3b, either by a duration higher total power, either by frequency upper feeding phases.

    Grâce à ce système de sécurité, qu'il soit appliqué à un fer sec ou à vapeur, on obtient la lecture de l'image de la température de la semelle qui reflète soit un échange thermique avec un tissu à repasser pour en déduire la position de fonctionnement de la semelle, soit un échange thermique avec l'air pour en déduire la position verticale de la semelle.Thanks to this security system, let it be applied with a dry or steam iron, we obtain the reading of the sole temperature image which reflects either a heat exchange with an ironing cloth to deduce the operating position of the sole, i.e. heat exchange with air to deduce the vertical position of the sole.

    Claims (10)

    1. Electric iron comprising a sole plate heated by means of an electric heating element (2) and a thermal regulation system, in which a control device (4) indicates the set temperature value corresponding to the fabric to be ironed, a sensor (5) gives the image of the temperature of the sole plate, and a management system (6) controls the opening or closing of the supply circuit (1) of the electric heating element (2), according to the difference between the set value and the measurement, characterised in that it has a safety system (10). comprising an electronic module (9), which:
      a) receives from the management system (6) the information on closure of the supply circuit (1) of the electric heating element (2),
      b) produces, over a fixed interval of time, the sum of the supply periods,
      c) and opens the supply circuit (1) of the electric heating element (2) if the value thus obtained is less than a predetermined threshold value.
    2. Electric iron according to Claim 1, characterised in that the electronic module (9) comprises a switch (8) connected in series with the electric heating element (2) which is actuated in response to a signal produced by a first counter (21).
    3. Electric iron according to Claim 2, characterised in that the first counter (21) comprises a programmable integrated circuit, which has at least one supply channel (A1), a channel (R1) for receiving a reset signal, an output channel (S1), and clock frequency generating means (H1) activated as soon as the iron is switched on.
    4. Electric iron according to Claim 3, characterised in that the electronic module (9) has a second counter (22) which comprises a programmable integrated circuit, having at least one supply channel (A2), a channel for receiving a reset signal (R2), an output channel (S2), and clock frequency generating means (H2) activated when the electric heating element (2) is supplied.
    5. Electric iron according to Claim 4, characterised in that the second counter (22) simultaneously sends a reset signal to the first and second counters (21, 22), as soon as the said second counter (22) has performed an operation of counting a period greater than a predetermined time T2 without receiving any reset signal.
    6. Electric iron according to Claim 5, characterised in that the first counter (21) delivers an opening signal to a relay (20) whose contacts form the switch (8), as soon as it has performed an operation of counting a period greater than a predetermined time T1, without receiving any reset signal, T1 being greater than T2.
    7. Electric iron according to Claim 5, characterised in that the first counter (21) simultaneously delivers an opening signal to a relay (20) whose contacts form the switch (8) and a signal for disabling the clock frequency generating means (H1) associated with the first counter (21) provided that it has performed an operation of counting a period greater than a predetermined time T1 without receiving any reset signal, T1 being greater than T2.
    8. Electric iron according to one of Claims 6 and 7,
      characterised in that the safety system (10) comprises reset means (23) able to be actuated by the user so as to close the relay (20) and reactivate the clock frequency generating means (H1) associated with the first counter (21), when the iron is on.
    9. Electric iron according to Claim 8, characterised in that the reset means (23) when they are actuated by the user, send a reset signal simultaneously to the first and second counters (21, 22).
    10. Electric iron comprising a sole plate heated by means of an electric heating element (2) and a thermal regulation system, in which a control device (4) indicates the set temperature value corresponding to the fabric to be ironed, a sensor (5) gives the image of the temperature of the sole plate, and a management system (6) controls the opening or closing of the supply circuit (1) of the electric heating element (2) according to the difference between the set value and the measurement , characterised in that it has a safety system (10) comprising an electronic module (9) which receives from the management system (6) the information on closure of the supply circuit (1) of the electric heating element (2), counts over a fixed interval of time the number of half-waves between the open and closed states of the supply circuit (1) of the electric heating element (2), and opens the supply circuit (1) of the electric heating element (2) if the number thus obtained is less than a predetermined threshold value.
    EP99918046A 1998-05-12 1999-05-11 Electric iron Expired - Lifetime EP1078120B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR9806443 1998-05-12
    FR9806443A FR2778679B1 (en) 1998-05-12 1998-05-12 ELECTRIC IRON
    PCT/FR1999/001117 WO1999058754A1 (en) 1998-05-12 1999-05-11 Electric iron

    Publications (2)

    Publication Number Publication Date
    EP1078120A1 EP1078120A1 (en) 2001-02-28
    EP1078120B1 true EP1078120B1 (en) 2002-10-02

    Family

    ID=9526598

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP99918046A Expired - Lifetime EP1078120B1 (en) 1998-05-12 1999-05-11 Electric iron

    Country Status (8)

    Country Link
    US (1) US6649882B1 (en)
    EP (1) EP1078120B1 (en)
    CN (1) CN1201045C (en)
    DE (1) DE69903280T2 (en)
    ES (1) ES2184442T3 (en)
    FR (1) FR2778679B1 (en)
    TR (1) TR200100108T2 (en)
    WO (1) WO1999058754A1 (en)

    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20090166348A1 (en) * 2007-12-28 2009-07-02 Tsann Kuen (China) Enterprise Co., Ltd Method and device for controlling an iron
    US9945066B1 (en) * 2013-02-14 2018-04-17 Google Llc Automatic iron temperature setting based on sensor data
    CN104746323B (en) * 2015-04-13 2017-03-01 厦门优尔电器股份有限公司 A kind of electric iron of temperature control mode improvement and the temp. control method of this electric iron
    EP3502345A1 (en) * 2017-12-22 2019-06-26 Koninklijke Philips N.V. Textile treatment device and portable device for obtaining a classification of a textile

    Family Cites Families (10)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP0076312A1 (en) * 1981-04-07 1983-04-13 FRANKLIN, Robert C. Appliance non-use detection safety power shut-off system
    FR2540148B1 (en) * 1983-02-02 1986-03-21 Seb Sa ELECTRONIC SECURITY DEVICE FOR ELECTRIC IRON
    JPH064119B2 (en) * 1985-03-28 1994-01-19 株式会社日立ホームテック Steam iron
    JPH064120B2 (en) * 1985-03-28 1994-01-19 株式会社日立ホームテック Iron
    JPS62261399A (en) * 1986-05-09 1987-11-13 松下電器産業株式会社 Iron
    DE3703884A1 (en) * 1987-02-09 1988-08-18 Inter Control Koehler Hermann Delay circuit
    JP2574318B2 (en) * 1987-08-28 1997-01-22 松下電器産業株式会社 Cordless iron
    JPH03173600A (en) * 1989-12-04 1991-07-26 Matsushita Electric Ind Co Ltd Electric iron
    JP2789839B2 (en) * 1991-04-19 1998-08-27 松下電器産業株式会社 Iron
    JP3259392B2 (en) * 1993-02-01 2002-02-25 松下電器産業株式会社 Iron

    Also Published As

    Publication number Publication date
    DE69903280T2 (en) 2003-12-04
    US6649882B1 (en) 2003-11-18
    FR2778679B1 (en) 2002-01-18
    WO1999058754A1 (en) 1999-11-18
    EP1078120A1 (en) 2001-02-28
    CN1201045C (en) 2005-05-11
    ES2184442T3 (en) 2003-04-01
    DE69903280D1 (en) 2002-11-07
    CN1309732A (en) 2001-08-22
    TR200100108T2 (en) 2001-07-23
    FR2778679A1 (en) 1999-11-19

    Similar Documents

    Publication Publication Date Title
    EP0115982B1 (en) Electronic safety device for electric iron
    EP0344065A1 (en) Electronic regulator powered during the non-active periods of network commutation
    EP0029991B1 (en) Electrical cooking appliance
    FR2635911A1 (en) AUXILIARY MODULE - CONTROL DEVICE FOR MOLDED CASE CIRCUIT BREAKER
    FR2509108A1 (en) MICROPROCESSOR MICROWAVE HEATING APPARATUS
    EP1078120B1 (en) Electric iron
    EP0292547A1 (en) Control device for heating apparatus having two operation modes
    EP1051099B1 (en) Thermostat with thermistors and switch-relays for heating resistors in an electrical household appliance
    FR2614385A1 (en) IMPROVEMENTS TO SAFETY DEVICES FOR GAS VALVES
    EP0235050A1 (en) Control device for electrical apparatuses
    EP2035618B1 (en) Ironing appliance comprising a safety device and method for making an iron appliance safe
    EP0623303B1 (en) Electric cooking apparatus
    FR2593637A1 (en) Safety device to ensure the automatic cutting of the electrical supply to a mobile heating appliance, in particular an iron
    FR2793104A1 (en) METHOD FOR DRIVING A HEATING ELEMENT OF AN ELECTRIC LIQUID HEATING APPARATUS
    EP0408493A1 (en) Stopping device for single-phase asynchronous motor with capacitor
    EP0841428B1 (en) Overheating indicator for electrical household appliance
    KR100958266B1 (en) Safety iron
    EP1860924B1 (en) Motion sensor switch associated with a timer
    FR2727533A1 (en) Over-temperature detection and safety mechanism for induction cooker
    EP0148655A1 (en) Method and apparatus to monitor and control the temperature of an electric heating resistance
    WO1990003605A1 (en) Proportional power modulator-regulator
    FR2899247A1 (en) Steam iron with a scaling indicator comprises a radiator having a chamber for vapor production, where the radiator has electrical resistance heater whose operation is controlled by a thermostat equipped with count unit
    EP0290314B1 (en) Operating circuit for electric remote-control apparatuses, especially remotely controlled brakers, and apparatuses incorporating this circuit
    FR2854002A1 (en) Electric household appliance e.g. ironing apparatus, has electric iron and steam generator connected by electric cord that has wire to transmit information signal and assure supply of direct current of electronic circuits
    FR2734140A1 (en) Control device with thermal cut=off switch for heater of mains domestic electrical appliance, e.g. cafetiere

    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

    17P Request for examination filed

    Effective date: 20001212

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): BE CH DE ES GB IT LI NL PT SE

    17Q First examination report despatched

    Effective date: 20010504

    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): BE CH DE ES GB IT LI NL PT SE

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

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20021002

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: EP

    REF Corresponds to:

    Ref document number: 69903280

    Country of ref document: DE

    Date of ref document: 20021107

    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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20030102

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20030102

    RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

    Owner name: SEB S.A.

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

    Effective date: 20030211

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2184442

    Country of ref document: ES

    Kind code of ref document: T3

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

    Ref country code: LI

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

    Effective date: 20030531

    Ref country code: CH

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

    Effective date: 20030531

    Ref country code: BE

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

    Effective date: 20030531

    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

    Effective date: 20030703

    BERE Be: lapsed

    Owner name: S.A. *MOULINEX

    Effective date: 20030531

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: 732E

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

    Ref country code: GB

    Payment date: 20090326

    Year of fee payment: 11

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

    Ref country code: ES

    Payment date: 20090413

    Year of fee payment: 11

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

    Ref country code: IT

    Payment date: 20090528

    Year of fee payment: 11

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

    Effective date: 20100511

    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: 20100511

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20110708

    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: 20100511

    Ref country code: ES

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

    Effective date: 20110628

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

    Ref country code: ES

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

    Effective date: 20100512

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

    Ref country code: DE

    Payment date: 20150508

    Year of fee payment: 17

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 69903280

    Country of ref document: DE

    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: 20161201