EP0959751A1 - Electrical cooking appliance with removable bowl - Google Patents

Electrical cooking appliance with removable bowl

Info

Publication number
EP0959751A1
EP0959751A1 EP98958984A EP98958984A EP0959751A1 EP 0959751 A1 EP0959751 A1 EP 0959751A1 EP 98958984 A EP98958984 A EP 98958984A EP 98958984 A EP98958984 A EP 98958984A EP 0959751 A1 EP0959751 A1 EP 0959751A1
Authority
EP
European Patent Office
Prior art keywords
tank
housing
limiter
heating
oil level
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98958984A
Other languages
German (de)
French (fr)
Inventor
Jean-Marie Thevenin
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
SEB 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 SEB SA filed Critical SEB SA
Publication of EP0959751A1 publication Critical patent/EP0959751A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/12—Deep fat fryers, e.g. for frying fish or chips
    • A47J37/1204—Deep fat fryers, e.g. for frying fish or chips for domestic use
    • A47J37/1209—Deep fat fryers, e.g. for frying fish or chips for domestic use electrically heated
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/12—Deep fat fryers, e.g. for frying fish or chips
    • A47J37/1266—Control devices, e.g. to control temperature, level or quality of the frying liquid

Definitions

  • the present invention relates to the general technical field of electric cooking appliances comprising a removable cooking tank and relates more particularly to thermal protection means.
  • the invention relates to cooking appliances with a removable tank, the heating power of which enables the food materials placed in the tank to be brought to temperatures greater than or equal to 140 ° C.
  • the invention relates in particular to fryers.
  • PRIOR ART Patent application WO 96/05761 describes an electrical appliance for heating foodstuffs, in particular for frying, comprising a removable bowl, said appliance being provided with a safety box designed to prevent heating by absence of tank, as well as in situations where the tank correctly installed in the housing of the device contains an insufficient quantity of fat, or even no fat at all.
  • This device has the drawbacks of having a large number of mechanical parts and of requiring very precise assembly, there are also numerous interstices conducive to soiling and the ingress of grease or water vapor. This device is therefore expensive and unreliable.
  • an electric fryer with a removable tank comprising a tank presence detection device designed to prevent heating in the absence of a tank, formed by a switch whose button is actuated by the tank correctly placed in the device, as well as a safety limiter mounted on a counter-tank behind a sheet intended to come into contact with the tank when it is placed in the housing of the 'apparatus.
  • the safety limiter is designed to open the electrical circuit before the fuse is triggered due to heating of the device, when the tank does not contain fat or an amount much lower than the recommended amount. Due to the high power of the heating means, the housing of the appliance and the cover made of plastic material are liable to be damaged if the appliance is started up in the absence of a tank.
  • the above-mentioned tank presence detection device makes it possible to avoid these drawbacks.
  • This device however has the disadvantage of comprising several mobile mechanical elements, accessible to the user and capable of being moved and / or damaged by the latter during cleaning.
  • the object of the invention therefore aims to remedy the various drawbacks listed above and to provide an electric cooking appliance with removable bowl comprising a particularly simple and proven means of thermal protection.
  • an electric cooking appliance comprising a housing forming a housing intended to receive a removable tank, heating means in thermal relation with the tank when the latter is disposed in the housing, thermal regulation means, ultimate safety means provided for overcoming the failure of the thermal regulation means, comprising a thermal limiter mounted on a support disposed in the housing, said limiter being capable of being triggered before the means of ultimate safety when the tank is not placed in the housing.
  • This construction allows the limiter to detect overheating abnormal occurring in the housing in the absence of a tank.
  • This construction offers the advantage of avoiding heating or damaging the device without using a mechanical detector of the presence of a tank formed by safety elements comprising a part that is movable relative to the housing of the device.
  • the housing comprises a counter-tank forming the support on which the limiter is mounted, the inner face of the counter-tank defining the housing.
  • This construction makes it possible in particular to avoid degradation of the housing when the latter is made of low-grade plastic material having limited temperature resistance.
  • the limiter can be reset manually.
  • This provision allows the user to become aware of an improper use of the device or of a defect in the control means. Restarting the device requires voluntary action, either on the part of the user when the device has a reset member accessible by the user, or on the part of the after-sales service otherwise.
  • the electric cooking appliance shown in FIG. 1 is an electric fryer comprising, in known manner, a housing 1 forming a housing 3 provided for receiving a removable tank 4, heating means 5 in thermal relation with the tank 4 when the latter is arranged in the housing 3, means of thermal regulation 6, ultimate safety means 7 provided to compensate for the failure of thermal regulation means 6.
  • the housing 1 is capable of being closed by a cover 9.
  • the fryer comprises a thermal limiter 8 mounted on a support 14 disposed in the housing 1.
  • the limiter 8 is capable of tripping before the ultimate safety means 7 when the tank 4 is not disposed in the housing 3.
  • the thermal limiter 8 is designed to capture the ambient temperature, and is not likely to come into mechanical contact with the tank 4 disposed in the housing 3. This thermal limiter is a reliable and proven component, the mounting on the support 14 is simple.
  • the housing 1 comprises a counter-tank 2 forming the support 14, and an outer casing 17 made of an inexpensive plastic material, having a resistance to limited temperature, such as for example polypropylene.
  • the inner face of the counter-tank 2 delimits the housing 3.
  • the limiter 8 is mounted on the outer face of the counter-tank 2, on the side of the casing 17.
  • the limiter 8 can be reset manually.
  • the tank 4 placed in the housing 3 is interposed between the heating means 5 and the support 14 on which the limiter 8 is mounted.
  • This arrangement makes it possible to limit heating of the support 14 and of the limiter 8 when the tank 4 is present in the housing 3, a fortiori when said tank contains a sufficient quantity of fat, said tank making a thermal screen, and conversely to rapidly trigger the limiter 8 in the absence of a tank 4 in the housing 3, or when the tank 4 is present but insufficiently filled with fat, or even when the tank 4 does not contain any fat at all, thanks to more heating important of the tank 4.
  • the tank 4 has at least one oil level mark 15, 16.
  • the tank 4 shown in FIG. 1 has a maximum oil level mark 15 and a level level mark. minimum oil 16.
  • the limiter 8 is mounted substantially facing at least one of the oil level marks 15, 16 of the tank 4 disposed in the housing 2, and advantageously facing the minimum oil level 16 and below the maximum oil level 15 of the tank 4 disposed in the housing 2.
  • the fryer comprises heating means 5 formed by a metal heating block 10 in which is embedded at least one armored heating element 11 associated with own regulation means 12 intended to limit the temperature of said heating block, said heating block being mounted on the counter-tank 2, in the bottom of the housing 3, and being provided to support the tank 4.
  • the apparatus according to the present invention operates as follows:
  • the thermal regulation means 6 intervene before the limiter 8 is activated.
  • the temperature of the support 14 on which the limiter 8 is placed increases faster than during normal operation, even if the thermal regulation means 6 intervene.
  • the limiter 8 reacts to this abnormal heating and limits the rise in ambient temperature, before the ultimate safety means 7 are called upon.
  • the heating limitation obtained by the action of the limiter 8 avoids excessive heating of the housing 1, which is particularly advantageous when the housing 1 is made of plastic, moreover when the housing 1 is made of low-quality plastic. This temperature limitation also applies to other parts of the product.
  • the limitation heating is also interesting in the case where the housing 1 is made of metal, lacquered or not.
  • the limiter 8 is capable of being triggered before the ultimate safety means 7 when the tank 4 does not contain fat. Indeed, in the case of an operation without fat, the tank 4 heats up more quickly than in the case of normal operation and the wall of the tank 4 opposite the support 14 heats the latter, which makes it possible to trigger the limiter 8.
  • the limiter 8 is capable of being triggered before the ultimate safety means 7 when the tank 4 contains an insufficient quantity of fat.
  • insufficient quantity of fat it is necessary to understand an amount of liquid fat or caused to become liquid.
  • This insufficient amount of fat rises more quickly in temperature and the tank 4 also rises in temperature.
  • the tank 4 heats up more quickly than in the case of normal operation and the wall of the tank 4 opposite the support 14 heats the latter, which makes it possible to trigger the limiter 8.
  • the limiter 8 also makes it possible to limit the temperature of the product.
  • heating can be envisaged, such as for example heating by infrared radiation, or heating using an armored heating element on which the tank is likely to rest.
  • the invention also relates to electric cooking appliances with removable bowl, such as multicookers, comprising heating means with a power greater than or equal to 1300 W.
  • Such devices are provided for making fried or braised, browned cooking. , toasted.
  • the invention finds its application in the technical field of heating or cooking appliances for food, in particular for the production of fried foods in an oil bath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Frying-Pans Or Fryers (AREA)

Abstract

The invention concerns an electrical fryer, comprising a body (1) forming a housing (3) for receiving a removable bowl (4), heating means (5) in thermal contact with the bowl (4) when the latter is set in the housing (3), heat adjusting means (6), and ultimate safety means (7) provided to compensate the breakdown of the heat adjusting means (6). The invention is characterised in that it comprises a thermal limit switch (8) mounted on a support (14) arranged in the body (1), said limit switch capable of being actuated before the ultimate safety means (7) when the bowl is not set in the housing (3).

Description

APPAREIL ELECTRIQUE DE CUISSON A CUVE AMOVIBLE ELECTRIC COOKING APPLIANCE WITH REMOVABLE TANK
DOMAINE TECHNIQUETECHNICAL AREA
La présente invention se rapporte au domaine technique général des appareils électriques de cuisson comportant une cuve de cuisson amovible et concerne plus particulièrement les moyens de protection thermique.The present invention relates to the general technical field of electric cooking appliances comprising a removable cooking tank and relates more particularly to thermal protection means.
L'invention concerne les appareils de cuisson à cuve amovible, dont la puissance de chauffe permet de porter les matières alimentaires disposées dans la cuve à des températures supérieures ou égales à 140°C. L'invention concerne en particulier les friteuses.The invention relates to cooking appliances with a removable tank, the heating power of which enables the food materials placed in the tank to be brought to temperatures greater than or equal to 140 ° C. The invention relates in particular to fryers.
Dans les appareils du type précité un contrôle du fonctionnement des moyens de chauffe en l'absence de la cuve amovible est nécessaire, du fait de la grande puissance des moyens de chauffe.In devices of the aforementioned type a control of the operation of the heating means in the absence of the removable tank is necessary, due to the high power of the heating means.
TECHNIQUE ANTERIEURE La demande de brevet WO 96/05761 décrit un appareil électrique de chauffe pour aliments, en particulier pour la réalisation de fritures, comportant une cuve amovible, ledit appareil étant muni d'un boîtier de sécurité prévu pour empêcher la chauffe en l'absence de cuve, ainsi que dans les situations où la cuve correctement installée dans le boîtier de l'appareil comporte une quantité insuffisante de matières grasses, voire pas de matières grasses du tout. Ce dispositif présente les inconvénients de comporter un grand nombre de pièces mécaniques et de nécessiter un montage très précis, il y a également de nombreux interstices propices aux salissures et aux infiltrations de graisse ou de vapeur d'eau. Ce dispositif est donc onéreux et peu fiable.PRIOR ART Patent application WO 96/05761 describes an electrical appliance for heating foodstuffs, in particular for frying, comprising a removable bowl, said appliance being provided with a safety box designed to prevent heating by absence of tank, as well as in situations where the tank correctly installed in the housing of the device contains an insufficient quantity of fat, or even no fat at all. This device has the drawbacks of having a large number of mechanical parts and of requiring very precise assembly, there are also numerous interstices conducive to soiling and the ingress of grease or water vapor. This device is therefore expensive and unreliable.
II est connu par ailleurs de réaliser une friteuse électrique à cuve amovible comportant un dispositif de détection de présence de cuve prévu pour empêcher la chauffe en l'absence de cuve, formé par un interrupteur dont le bouton est actionné par la cuve correctement mise en place dans l'appareil, ainsi qu'un limiteur de sécurité monté sur une contre-cuve derrière une tôle prévue pour venir au contact de la cuve lorsque celle-ci est disposée dans le boîtier de l'appareil. Le limiteur de sécurité est prévu pour ouvrir le circuit électrique avant que le fusible ne soit sollicité par suite de échauffement de l'appareil, lorsque la cuve ne contient pas de matières grasses ou une quantité très inférieure à la quantité préconisée. Du fait de la grande puissance des moyens de chauffe, le boîtier de l'appareil et le couvercle réalisés en matière plastique sont susceptibles d'être endommagés si l'appareil est mis en marche en l'absence de cuve. Le dispositif de détection de présence de cuve précité permet d'éviter ces inconvénients. Ce dispositif présente cependant l'inconvénient de comporter plusieurs éléments mécaniques mobiles, accessibles à l'utilisateur et susceptibles d'être déplacés et/ou détériorés par celui-ci lors du nettoyage.It is also known to produce an electric fryer with a removable tank comprising a tank presence detection device designed to prevent heating in the absence of a tank, formed by a switch whose button is actuated by the tank correctly placed in the device, as well as a safety limiter mounted on a counter-tank behind a sheet intended to come into contact with the tank when it is placed in the housing of the 'apparatus. The safety limiter is designed to open the electrical circuit before the fuse is triggered due to heating of the device, when the tank does not contain fat or an amount much lower than the recommended amount. Due to the high power of the heating means, the housing of the appliance and the cover made of plastic material are liable to be damaged if the appliance is started up in the absence of a tank. The above-mentioned tank presence detection device makes it possible to avoid these drawbacks. This device however has the disadvantage of comprising several mobile mechanical elements, accessible to the user and capable of being moved and / or damaged by the latter during cleaning.
EXPOSE DE L'INVENTIONSTATEMENT OF THE INVENTION
L'objet de l'invention vise en conséquence à porter remède aux différents inconvénients énumérés précédemment et à fournir un appareil de cuisson électrique à cuve amovible comportant un moyen de protection thermique particulièrement simple et éprouvé.The object of the invention therefore aims to remedy the various drawbacks listed above and to provide an electric cooking appliance with removable bowl comprising a particularly simple and proven means of thermal protection.
Les objets assignés à l'invention sont atteints à l'aide d'un appareil de cuisson électrique, comportant un boîtier formant un logement prévu pour recevoir une cuve amovible, des moyens de chauffe en relation thermique avec la cuve lorsque celle-ci est disposée dans le logement, des moyens de régulation thermique, des moyens de sécurité ultimes prévus pour palier la défaillance des moyens de régulation thermique, comportant un limiteur thermique monté sur un support disposé dans le boîtier, ledit limiteur étant susceptible de se déclencher avant les moyens de sécurité ultimes lorsque la cuve n'est pas disposée dans le logement.The objects assigned to the invention are achieved using an electric cooking appliance, comprising a housing forming a housing intended to receive a removable tank, heating means in thermal relation with the tank when the latter is disposed in the housing, thermal regulation means, ultimate safety means provided for overcoming the failure of the thermal regulation means, comprising a thermal limiter mounted on a support disposed in the housing, said limiter being capable of being triggered before the means of ultimate safety when the tank is not placed in the housing.
Cette construction permet la détection par le limiteur d'un échauffement anormal intervenant dans le logement en l'absence de cuve. Cette construction offre l'avantage d'éviter réchauffement ou l'endommagement de l'appareil sans utiliser de détecteur mécanique de présence de cuve formé par des éléments de sécurité comportant une partie mobile par rapport au boîtier de l'appareil.This construction allows the limiter to detect overheating abnormal occurring in the housing in the absence of a tank. This construction offers the advantage of avoiding heating or damaging the device without using a mechanical detector of the presence of a tank formed by safety elements comprising a part that is movable relative to the housing of the device.
Avantageusement, le boîtier comporte une contre-cuve formant le support sur lequel est monté le limiteur, la face intérieure de la contre-cuve délimitant le logement.Advantageously, the housing comprises a counter-tank forming the support on which the limiter is mounted, the inner face of the counter-tank defining the housing.
Cette construction permet notamment d'éviter la dégradation du boîtier lorsque celui-ci est réalisé en matière plastique peu noble présentant une tenue en température limitée.This construction makes it possible in particular to avoid degradation of the housing when the latter is made of low-grade plastic material having limited temperature resistance.
Avantageusement le limiteur est réarmable manuellement.Advantageously, the limiter can be reset manually.
Cette disposition permet que l'utilisateur prenne conscience d'une utilisation non conforme de l'appareil ou d'un défaut des moyens de régulation. La remise en marche de l'appareil nécessite une action volontaire, soit de la part de l'utilisateur lorsque l'appareil comporte un organe de réarmement accessible par l'utilisateur, soit de la part du service après-vente dans le cas contraire.This provision allows the user to become aware of an improper use of the device or of a defect in the control means. Restarting the device requires voluntary action, either on the part of the user when the device has a reset member accessible by the user, or on the part of the after-sales service otherwise.
DESCRIPTION SOMMAIRE DES DESSINSSUMMARY DESCRIPTION OF THE DRAWINGS
D'autres avantages et particularités de l'invention ressortiront mieux à l'aide de la description faite ci-après, en référence au dessin annexé qui montre à titre d'exemple non limitatif, une forme de réalisation de l'objet de l'invention dans lequel la figure 1 montre selon une vue en coupe un appareil de cuisson électrique selon l'invention.Other advantages and particularities of the invention will emerge more clearly with the aid of the description given below, with reference to the appended drawing which shows by way of nonlimiting example, an embodiment of the subject of the invention in which Figure 1 shows in a sectional view an electric cooking appliance according to the invention.
MEILLEURE MANIERE DE REALISER L'INVENTIONBEST WAY TO IMPLEMENT THE INVENTION
L'appareil de cuisson électrique montré à la figure 1 est une friteuse électrique comportant de manière connue un boîtier 1 formant un logement 3 prévu pour recevoir une cuve 4 amovible, des moyens de chauffe 5 en relation thermique avec la cuve 4 lorsque celle-ci est disposée dans le logement 3, des moyens de régulation thermique 6, des moyens de sécurité ultimes 7 prévus pour palier la défaillance des moyens de régulation thermique 6. Avantageusement le boîtier 1 est susceptible d'être fermé par un couvercle 9.The electric cooking appliance shown in FIG. 1 is an electric fryer comprising, in known manner, a housing 1 forming a housing 3 provided for receiving a removable tank 4, heating means 5 in thermal relation with the tank 4 when the latter is arranged in the housing 3, means of thermal regulation 6, ultimate safety means 7 provided to compensate for the failure of thermal regulation means 6. Advantageously, the housing 1 is capable of being closed by a cover 9.
Selon l'invention, la friteuse comporte un limiteur thermique 8 monté sur un support 14 disposé dans le boîtier 1. Le limiteur 8 est susceptible de se déclencher avant les moyens de sécurité ultimes 7 lorsque la cuve 4 n'est pas disposée dans le logement 3. Le limiteur thermique 8 est prévu pour capter la température d'ambiance, et n'est pas susceptible d'entrer en contact mécanique avec la cuve 4 disposée dans le logement 3. Ce limiteur thermique est un composant fiable et éprouvé, dont le montage sur le support 14 est simple.According to the invention, the fryer comprises a thermal limiter 8 mounted on a support 14 disposed in the housing 1. The limiter 8 is capable of tripping before the ultimate safety means 7 when the tank 4 is not disposed in the housing 3. The thermal limiter 8 is designed to capture the ambient temperature, and is not likely to come into mechanical contact with the tank 4 disposed in the housing 3. This thermal limiter is a reliable and proven component, the mounting on the support 14 is simple.
Avantageusement, tel que représenté à la figure 1 , le boîtier 1 comporte une contre-cuve 2 formant le support 14, et une enveloppe extérieure 17 réalisée en une matière plastique peu onéreuse, présentant une tenue à la température limitée, telle que par exemple du polypropylène. La face intérieure de la contre- cuve 2 délimite le logement 3.Advantageously, as shown in FIG. 1, the housing 1 comprises a counter-tank 2 forming the support 14, and an outer casing 17 made of an inexpensive plastic material, having a resistance to limited temperature, such as for example polypropylene. The inner face of the counter-tank 2 delimits the housing 3.
Selon une version préférée de l'invention montrée à la figure 1 le limiteur 8 est monté sur la face extérieure de la contre-cuve 2, du coté de l'enveloppe 17.According to a preferred version of the invention shown in FIG. 1, the limiter 8 is mounted on the outer face of the counter-tank 2, on the side of the casing 17.
Avantageusement le limiteur 8 est réarmable manuellement.Advantageously, the limiter 8 can be reset manually.
De manière avantageuse la cuve 4 placée dans le logement 3 s'interpose entre les moyens de chauffe 5 et le support 14 sur lequel est monté le limiteur 8.Advantageously, the tank 4 placed in the housing 3 is interposed between the heating means 5 and the support 14 on which the limiter 8 is mounted.
Cette disposition permet de limiter réchauffement du support 14 et du limiteur 8 lorsque la cuve 4 est présente dans le logement 3, à fortiori lorsque ladite cuve contient une quantité suffisante de matières grasses, ladite cuve faisant un écran thermique, et inversement de déclencher rapidement le limiteur 8 en cas d'absence de cuve 4 dans le logement 3, ou lorsque la cuve 4 est présente mais insuffisamment remplie de matières grasses, ou encore lorsque la cuve 4 ne comporte pas de matières grasses du tout, grâce à réchauffement plus important de la cuve 4.This arrangement makes it possible to limit heating of the support 14 and of the limiter 8 when the tank 4 is present in the housing 3, a fortiori when said tank contains a sufficient quantity of fat, said tank making a thermal screen, and conversely to rapidly trigger the limiter 8 in the absence of a tank 4 in the housing 3, or when the tank 4 is present but insufficiently filled with fat, or even when the tank 4 does not contain any fat at all, thanks to more heating important of the tank 4.
Selon une version avantageuse de l'invention la cuve 4 présente au moins une marque de niveau d'huile 15, 16. La cuve 4 représentée à la figure 1 présente une marque de niveau d'huile maximum 15 et une marque de niveau d'huile minimum 16. Le limiteur 8 est monté sensiblement en regard d'au moins l'une des marques de niveau d'huile 15, 16 de la cuve 4 disposée dans le logement 2, et avantageusement en regard du niveau d'huile minimum 16 et en dessous du niveau d'huile maximum 15 de la cuve 4 disposée dans le logement 2.According to an advantageous version of the invention, the tank 4 has at least one oil level mark 15, 16. The tank 4 shown in FIG. 1 has a maximum oil level mark 15 and a level level mark. minimum oil 16. The limiter 8 is mounted substantially facing at least one of the oil level marks 15, 16 of the tank 4 disposed in the housing 2, and advantageously facing the minimum oil level 16 and below the maximum oil level 15 of the tank 4 disposed in the housing 2.
Dans une des réalisations possibles, montrée à la figure 1, la friteuse comporte des moyens de chauffe 5 formés par un bloc de chauffe métallique 10 dans lequel est noyé au moins un élément chauffant blindé 11 associé à des moyens de régulation propres 12 prévus pour limiter la température dudit bloc de chauffe, ledit bloc de chauffe étant monté sur la contre-cuve 2, dans le fond du logement 3, et étant prévu pour supporter la cuve 4.In one of the possible embodiments, shown in FIG. 1, the fryer comprises heating means 5 formed by a metal heating block 10 in which is embedded at least one armored heating element 11 associated with own regulation means 12 intended to limit the temperature of said heating block, said heating block being mounted on the counter-tank 2, in the bottom of the housing 3, and being provided to support the tank 4.
L'appareil selon la présente invention fonctionne de la façon suivante :The apparatus according to the present invention operates as follows:
Dans le cas d'un fonctionnement normal dans lequel la friteuse mise en marche comprend la cuve 4 correctement disposée dans le logement 3 et remplie de la quantité de matières grasses préconisée, les moyens de régulation thermique 6 interviennent avant que le limiteur 8 soit sollicité.In the case of normal operation in which the fryer being switched on comprises the tank 4 correctly placed in the housing 3 and filled with the recommended quantity of fat, the thermal regulation means 6 intervene before the limiter 8 is activated.
Dans le cas d'un fonctionnement sans cuve, la température du support 14 sur laquelle est placé le limiteur 8 augmente plus vite que lors du fonctionnement normal, même si les moyens de régulation thermique 6 interviennent. Le limiteur 8 réagit à cet échauffement anormal et limite l'élévation de la température ambiante, avant que les moyens de sécurité ultimes 7 ne soient sollicités. La limitation de échauffement obtenue grâce à l'action du limiteur 8 évite réchauffement excessif du boîtier 1 , ce qui est particulièrement intéressant lorsque le boîtier 1 est réalisé en matière plastique, de surcroît lorsque le boîtier 1 est réalisé en matière plastique peu noble. Cette limitation de température s'applique également aux autres pièces du produit. La limitation de réchauffement est également intéressante dans le cas ou le boîtier 1 est réalisé en métal, laqué ou non.In the case of operation without a tank, the temperature of the support 14 on which the limiter 8 is placed increases faster than during normal operation, even if the thermal regulation means 6 intervene. The limiter 8 reacts to this abnormal heating and limits the rise in ambient temperature, before the ultimate safety means 7 are called upon. The heating limitation obtained by the action of the limiter 8 avoids excessive heating of the housing 1, which is particularly advantageous when the housing 1 is made of plastic, moreover when the housing 1 is made of low-quality plastic. This temperature limitation also applies to other parts of the product. The limitation heating is also interesting in the case where the housing 1 is made of metal, lacquered or not.
Selon une version avantageuse de l'invention le limiteur 8 est susceptible de se déclencher avant les moyens de sécurité ultimes 7 lorsque la cuve 4 ne contient pas de matières grasses. En effet dans le cas d'un fonctionnement sans matières grasses, la cuve 4 s'échauffe plus rapidement que dans le cas d'un fonctionnement normal et la paroi de la cuve 4 en regard du support 14 échauffe ce dernier, ce qui permet de déclencher le limiteur 8.According to an advantageous version of the invention, the limiter 8 is capable of being triggered before the ultimate safety means 7 when the tank 4 does not contain fat. Indeed, in the case of an operation without fat, the tank 4 heats up more quickly than in the case of normal operation and the wall of the tank 4 opposite the support 14 heats the latter, which makes it possible to trigger the limiter 8.
Selon une version avantageuse de l'invention le limiteur 8 est susceptible de se déclencher avant les moyens de sécurité ultimes 7 lorsque la cuve 4 contient une quantité de matières grasses insuffisante. Par quantité de matières grasses insuffisante, il convient d'entendre une quantité de matières grasses liquides ou amenées à devenir liquides. Cette quantité de matières grasses insuffisante monte plus rapidement en température et la cuve 4 monte également en température. La cuve 4 s'échauffe plus rapidement que dans le cas d'un fonctionnement normal et la paroi de la cuve 4 en regard du support 14 échauffe ce dernier, ce qui permet de déclencher le limiteur 8.According to an advantageous version of the invention, the limiter 8 is capable of being triggered before the ultimate safety means 7 when the tank 4 contains an insufficient quantity of fat. By insufficient quantity of fat, it is necessary to understand an amount of liquid fat or caused to become liquid. This insufficient amount of fat rises more quickly in temperature and the tank 4 also rises in temperature. The tank 4 heats up more quickly than in the case of normal operation and the wall of the tank 4 opposite the support 14 heats the latter, which makes it possible to trigger the limiter 8.
Dans le cas d'une défaillance des moyens de régulation thermique 6, le limiteur 8 permet également de limiter la température du produit.In the event of a failure of the thermal regulation means 6, the limiter 8 also makes it possible to limit the temperature of the product.
L'invention n'est nullement limitée strictement à l'exemple de réalisation décrit précédemment, mais englobe de nombreuses modifications ou améliorations.The invention is in no way strictly limited to the embodiment described above, but encompasses numerous modifications or improvements.
Notamment d'autres types de chauffage peuvent être envisagés, tels que par exemple un chauffage par rayonnement infrarouge, ou un chauffage utilisant un élément chauffant blindé sur lequel est susceptible de reposer la cuve.In particular, other types of heating can be envisaged, such as for example heating by infrared radiation, or heating using an armored heating element on which the tank is likely to rest.
L'invention concerne également les appareils électriques de cuisson à cuve amovible, tels que les multicuiseurs, comportant des moyens de chauffe d'une puissance supérieure ou égale à 1300 W. De tels appareils sont prévus pour réaliser des fritures ou des cuissons braisées, rissolées, grillées. POSSIBILITE D'APPLICATION INDUSTRIELLEThe invention also relates to electric cooking appliances with removable bowl, such as multicookers, comprising heating means with a power greater than or equal to 1300 W. Such devices are provided for making fried or braised, browned cooking. , toasted. POSSIBILITY OF INDUSTRIAL APPLICATION
L'invention trouve son application dans le domaine technique des appareils de chauffe ou de cuisson pour aliments en particulier pour la réalisation de fritures dans un bain d'huile. The invention finds its application in the technical field of heating or cooking appliances for food, in particular for the production of fried foods in an oil bath.

Claims

REVENDICATIONS
1. Appareil électrique de cuisson, comportant un boîtier (1) formant un logement (3) prévu pour recevoir une cuve (4) amovible, des moyens de chauffe (5) en relation thermique avec la cuve (4) lorsque celle-ci est disposée dans le logement (3), des moyens de régulation thermique (6), des moyens de sécurité ultimes (7) prévus pour palier la défaillance des moyens de régulation thermique (6), caractérisé en ce qu'il comporte un limiteur thermique (8) monté sur un support (14) disposé dans le boîtier (1), ledit limiteur étant susceptible de se déclencher avant les moyens de sécurité ultimes (7) lorsque la cuve (4) n'est pas disposée dans le logement (3).1. An electric cooking appliance, comprising a housing (1) forming a housing (3) designed to receive a removable tank (4), heating means (5) in thermal relation with the tank (4) when the latter is disposed in the housing (3), thermal regulation means (6), ultimate safety means (7) provided to compensate for the failure of the thermal regulation means (6), characterized in that it includes a thermal limiter ( 8) mounted on a support (14) disposed in the housing (1), said limiter being capable of being triggered before the ultimate safety means (7) when the tank (4) is not disposed in the housing (3) .
2. Appareil selon la revendication 1 , caractérisé en ce que le boîtier (1) comporte une contre-cuve (2) formant le support (14), la face intérieure de la contre-cuve (2) délimitant le logement (3).2. Apparatus according to claim 1, characterized in that the housing (1) comprises a counter-tank (2) forming the support (14), the inner face of the counter-tank (2) delimiting the housing (3).
3. Appareil selon la revendication 2, caractérisé en ce que la face extérieure de la contre-cuve (2) forme le support (14).3. Apparatus according to claim 2, characterized in that the outer face of the counter-tank (2) forms the support (14).
4. Appareil selon l'une des revendications 1 à 3, caractérisé en ce que le limiteur (8) est réarmable manuellement.4. Apparatus according to one of claims 1 to 3, characterized in that the limiter (8) can be reset manually.
5. Appareil selon l'une des revendications 1 à 4, caractérisé en ce que les moyens de chauffe (5) sont disposés dans le fond du logement (3).5. Apparatus according to one of claims 1 to 4, characterized in that the heating means (5) are arranged in the bottom of the housing (3).
6. Appareil selon l'une des revendications 1 à 5, caractérisé en ce que la cuve (4) placée dans le logement (3) s'interpose entre les moyens de chauffe (5) et le support (14) sur lequel est monté le limiteur (8).6. Apparatus according to one of claims 1 to 5, characterized in that the tank (4) placed in the housing (3) is interposed between the heating means (5) and the support (14) on which is mounted the limiter (8).
7. Appareil selon l'une des revendications 1 à 6, caractérisé en ce que la cuve (4) présente au moins une marque de niveau d'huile (15, 16) et que le limiteur (8) est monté sensiblement en regard d'au moins l'une des marques de niveau d'huile (15, 16) de la cuve (4) disposée dans le logement (3). 7. Apparatus according to one of claims 1 to 6, characterized in that the tank (4) has at least one oil level mark (15, 16) and that the limiter (8) is mounted substantially opposite 'at least one of the oil level marks (15, 16) of the tank (4) disposed in the housing (3).
8. Appareil selon la revendication 7, caractérisé en ce que la cuve (4) présente une marque de niveau d'huile maximum (15) et une marque de niveau d'huile minimum (16).8. Apparatus according to claim 7, characterized in that the tank (4) has a maximum oil level mark (15) and a minimum oil level mark (16).
9. Appareil selon la revendication 8, caractérisé en ce que le limiteur (8) est monté en regard de la marque de niveau d'huile minimum (16) et en dessous de la marque de niveau d'huile maximum (15) de la cuve (4) disposée dans le logement (3).9. Apparatus according to claim 8, characterized in that the limiter (8) is mounted opposite the minimum oil level mark (16) and below the maximum oil level mark (15) of the tank (4) disposed in the housing (3).
10. Appareil selon l'une des revendications 1 à 9, caractérisé en ce que les moyens de chauffe (5) sont formés par un bloc de chauffe métallique (10) dans lequel est noyé au moins un élément chauffant blindé (11) associé à des moyens de régulation propres (12) prévus pour limiter la température dudit bloc de chauffe, ledit bloc de chauffe étant monté sur la contre-cuve (2) et étant prévu pour supporter la cuve (4).10. Apparatus according to one of claims 1 to 9, characterized in that the heating means (5) are formed by a metal heating block (10) in which is embedded at least one armored heating element (11) associated with own regulation means (12) provided for limiting the temperature of said heating block, said heating block being mounted on the counter-tank (2) and being provided for supporting the tank (4).
11. Appareil selon l'une des revendications 1 à 10, caractérisé en ce que le limiteur (8) est susceptible de se déclencher avant les moyens de sécurité ultimes (7) lorsque la cuve (4) ne contient pas de matières grasses.11. Apparatus according to one of claims 1 to 10, characterized in that the limiter (8) is likely to be triggered before the ultimate safety means (7) when the tank (4) does not contain fat.
12. Appareil selon l'une des revendications 1 à 11, caractérisé en ce que le limiteur (8) est susceptible de se déclencher avant les moyens de sécurité ultimes (7) lorsque la cuve (4) contient une quantité de matières grasses insuffisante.12. Apparatus according to one of claims 1 to 11, characterized in that the limiter (8) is likely to be triggered before the ultimate safety means (7) when the tank (4) contains an insufficient amount of fat.
13. Appareil selon l'une des revendications 1 à 12, caractérisé en ce qu'il s'agit d'une friteuse.13. Apparatus according to one of claims 1 to 12, characterized in that it is a fryer.
14. Appareil selon l'une des revendications 1 à 13, caractérisé en ce que les moyens de chauffe (5) ont une puissance supérieure à 1300 W. 14. Apparatus according to one of claims 1 to 13, characterized in that the heating means (5) have a power greater than 1300 W.
EP98958984A 1997-12-09 1998-12-08 Electrical cooking appliance with removable bowl Withdrawn EP0959751A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9715821A FR2771915B1 (en) 1997-12-09 1997-12-09 ELECTRIC FRYER WITH REMOVABLE TANK
FR9715821 1997-12-09
PCT/FR1998/002661 WO1999029219A1 (en) 1997-12-09 1998-12-08 Electrical cooking appliance with removable bowl

Publications (1)

Publication Number Publication Date
EP0959751A1 true EP0959751A1 (en) 1999-12-01

Family

ID=9514574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98958984A Withdrawn EP0959751A1 (en) 1997-12-09 1998-12-08 Electrical cooking appliance with removable bowl

Country Status (7)

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US (1) US6172339B1 (en)
EP (1) EP0959751A1 (en)
AU (1) AU1492899A (en)
BR (1) BR9807127A (en)
CA (1) CA2279829A1 (en)
FR (1) FR2771915B1 (en)
WO (1) WO1999029219A1 (en)

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Also Published As

Publication number Publication date
CA2279829A1 (en) 1999-06-17
BR9807127A (en) 2000-01-25
US6172339B1 (en) 2001-01-09
FR2771915B1 (en) 2000-02-11
AU1492899A (en) 1999-06-28
WO1999029219A1 (en) 1999-06-17
FR2771915A1 (en) 1999-06-11

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