EP1278400A2 - Heating element - Google Patents

Heating element Download PDF

Info

Publication number
EP1278400A2
EP1278400A2 EP02291837A EP02291837A EP1278400A2 EP 1278400 A2 EP1278400 A2 EP 1278400A2 EP 02291837 A EP02291837 A EP 02291837A EP 02291837 A EP02291837 A EP 02291837A EP 1278400 A2 EP1278400 A2 EP 1278400A2
Authority
EP
European Patent Office
Prior art keywords
power switch
envelope
heating element
element according
sole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02291837A
Other languages
German (de)
French (fr)
Other versions
EP1278400A3 (en
EP1278400B1 (en
Inventor
David Andre
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.)
Jedac
Original Assignee
Jedac
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 Jedac filed Critical Jedac
Publication of EP1278400A2 publication Critical patent/EP1278400A2/en
Publication of EP1278400A3 publication Critical patent/EP1278400A3/en
Application granted granted Critical
Publication of EP1278400B1 publication Critical patent/EP1278400B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
    • H05B1/0283—For heating of fluids, e.g. water heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion heaters

Definitions

  • the present invention relates to a heating element intended for example to be used for heating of a heat transfer fluid, in particular water, contained in inside a sealed enclosure.
  • a heat transfer fluid in particular water
  • a heating element of this type generally comprises a resistive element which is arranged inside a tubular envelope of thermally conductive material and which is connected to a power circuit by through a power switch.
  • heating elements to double envelope in which two tubular envelopes thermally conductive are arranged coaxially one in relation to the other.
  • the single envelope or the outer shell of the heating element passes through the enclosure wall to be immersed in the fluid on most of its length with its end closed located on the interior side of the enclosure and its open end located on the outside to allow the electrical connection of the resistive element.
  • the envelope When crossing the wall of the enclosure, the envelope is contained in a mounting flange which ensures faith its maintenance in position and the necessary tightness by compared to the wall of the enclosure.
  • the mounting flange is made of material thermally conductive and present in its thickness a housing in which the switch is installed power in such a way that the mounting flange allows dissipation of the heat generated during power switch operation. This allows particularly effective way of limiting heating of the power switch or otherwise said, to provide cooling for the power switch.
  • a heating element comprising an envelope receiving a heating resistance embedded in a insulating material and connected to a power source via a temperature-sensitive element placed in a envelope cavity to cut power to the heating resistance as a function of temperature.
  • the heating element is arranged in such a way that it prevails the same temperature in the cavity at the sensitive element only in the surrounding insulating material resistance to control the power cut with good precision.
  • it there is no question of cooling the sensitive element which on the contrary, must be subjected to the most possible close to that of the heating resistance.
  • the teaching of this document cannot therefore be used to solve the problem posed above.
  • a heating element comprising at least one thermally conductive tubular casing receiving at minus a resistive element connected to a power circuit comprising a power switch which is fixed in the envelope by means of heat exchange means between the power switch and the enclosure.
  • the tubular casing ensures by contact with this heat transfer fluid heat dissipation function generated during the operation of the power.
  • the binding of the envelope to the wall of the enclosure also contributes to heat dissipation via the speaker. This allows for an exchange surface relatively large for switch cooling power while maintaining a limited footprint. Efficient cooling of the power switch thus obtained increases the service life of this last.
  • the tubular casing also provides Protection function of the power switch vis-à-vis external aggressions and facilitates insulation power switch in relation to the middle outside.
  • the invention is here represented and described in connection with an individual heating element, intended for be mounted on an enclosure of fluid to be heated (not shown) using a mounting flange (itself not shown) designed to be screwed into a tapped hole provided in the wall of this enclosure.
  • a mounting flange itself not shown
  • Other types of equivalent mounting are of course conceivable.
  • the heating element designated by the general reference 1 includes a resistor shielded electrical system that has a metal casing 2 inside which is arranged an element resistive 3 in the form here of a resistant wire arranged helically.
  • the resistive element 3 extends in an electrically insulating refractory material such as powdered magnesia 4, compacted inside the metal casing 2.
  • the resistive element has two ends 3a, 3b connected to electrical conductors 5, 6 which pass through a shutter element 7 to be connected to a power circuit.
  • the shutter element 7 hermetically divides the metal casing 2 in two sections 2a, 2b, the resistive element 3 being contained in section 2a.
  • the shutter element 7 is preferably made of a thermally insulating material.
  • the power circuit is not fully visible in Figure 1 and only one power switch 8 is shown schematically in this figure.
  • Power switch 8 is a connected triac to the rest of the power circuit by cables 9 and is mounted in section 2b of the metal casing 2.
  • the power switch 8 is received in a cavity 10 which is formed in a sole 11 and which has a bottom 12 against which the power switch 8 is plate.
  • the cavity 10 is filled with a hardened resin 13 electrically insulating which keeps it in position of the power switch 8 relative to the sole 11.
  • the sole 11 is made of a thermally material conductor such as brass and present at opposite of cavity 10 one face 14 in cylinder portion of circular section having a radius substantially equal to the internal radius section 2b of the envelope 2.
  • the face 14 of the sole 11 is in abutment against a portion of the internal surface of section 2b of envelope 2 via an electrically insulating layer 15.
  • the insulating layer 15 can comprise one or two flexible mica sheets or an elastomer adapted by example based on silicone, possibly associated with a thermally conductive and electrically insulating grease. In the case where an isolated triac is used, the layer 15 is optional in the context of a simple isolation.
  • An electrically insulating and hardened resin 16 fills section 2b of envelope 2 extending beyond of the shutter 7 and keeps the sub-assembly in position constituted by the power switch 8, the electrically insulating layer 15 and the sole 11. During of the manufacturing, we will insist on the quality of the contacts parts between them which must allow the establishment a heat exchange link between the power switch 8 and enclosure 2.
  • the heat produced by the power switch 8 during operation is dissipated via the sole 11 by the casing 2 in contact with the heat transfer fluid to be heated.
  • the flange is made of a thermally conductive material, part of heat produced by the power switch is also dissipated via the flange through the wall of the enclosure to which the heating element is attached.
  • the power switch 8 is located in a medium (within cavity 10) which tends to be mainly subject to the temperature of the heat transfer fluid and not that of the resistive element 3, which favors cooling the power switch 8.
  • a medium within cavity 10
  • means of thermal insulation can be provided between cavity 10 and the area of the heating element immediately adjacent to the resistive element 3.
  • the armored resistance is contained inside a second envelope 17 which extends coaxially with respect to the envelope 2 and which has an open end 17a and a closed end 17b.
  • the envelope 17 is here made of a metal such than stainless steel but can also be made in any thermally conductive material.
  • Envelope 17 is partially filled with electrically insulating refractory material such as magnesia 26, compacted inside the envelope 17, material in which the envelope 2 is included.
  • a part of the envelope 17 adjacent to its open end 17a extends beyond the envelope 2 and receives the power switch 8 which, unlike the previous realization, is no longer placed in the envelope 2.
  • the shutter element 7 is then adjacent to the open end of the casing 2 so that it closes it.
  • the power switch 8 is mounted on a sole 11 having a cavity 10 having a bottom 12 and side walls electrically coated insulator 18. Electrically hardened resin 13 insulator fills the cavity 10 and holds the switch of power 8 in position.
  • the sole 11 is as before made of a thermally conductive material, here brass, and has a face 14 opposite to the cavity 10 which has a cylindrical portion shape of circular section with a radius substantially equal to inner radius of the envelope 17.
  • Maintaining the sole 11 in position in the corresponding part of the envelope 17 is provided by an electrically insulating hardened resin 23 which is contained in this part of the envelope.
  • a groove 24 is formed axially in the face 14 of the sole 11.
  • the assembly operations of the sub-assembly incorporating power switch 8 start with setting in place of the insulating layer 18 in the cavity 10 of such that this insulating layer covers the bottom 12 and the side walls of the cavity 10. Then, the switch of power 8 is placed in the cavity 10 before an electrically insulating resin 13 is introduced in the cavity 10.
  • the resin 13 once hardened does not completely cover the power switch here 8 and mainly provides a holding function in position of the power switch 8 and of the layer insulator 18 in the cavity 10.
  • the sole 11 is then mounted in the envelope 17 so that the face 14 is applied against the internal surface of the envelope 17 then the resin 23 is introduced into the envelope 17.
  • the resin is introduced by the groove 4 so as to obtain filling the adjacent part of the envelope 17 at its end 17a similar to the filling obtained by source casting. This prevents bubbles air are trapped in the resin 23. The bleeding 24 thus facilitates the filling of the envelope. Resin 23 once cured ensures retention in the envelope 17 of the sole 11 and also performs a function electrical insulation.
  • Tapping 24 has another advantage when the envelope 17 is obtained by winding a sheet on itself then welding the edges of it. Indeed, in this case the envelope 17 has an internal bulge 25 corresponding to the weld, which can be housed in the grooved 24 so that the internal bulge 25 does not prevent not obtaining a good adaptation of the face 14 with the internal surface of the envelope 17.
  • the sole 11 has opposite of its face 14 in a portion of a cylinder of circular section, a flat face 19 on which the switch power 8 is fixed.
  • An insulating layer 18 is interposed between face 19 and power switch 8.
  • the the power switch 8 is fixed to the by means of a screw 20 which passes through a hole 21 made in the power switch 8 and fitted with a jacket shouldered 22 of electrically insulating material which, in cooperating with the insulating layer 18, electrically insulates the sole 11 and the screw 20 of the power switch 8.

Abstract

The electrical heater (1) has a tubular thermally conducting envelope (2) which contains a resistive heating element (3) supplied by electrical conductors (5,6) and insulated by powdered magnesium oxide (4). Heating and switching compartments (2a,2b) are separated by a thermally insulating wall (7) and the switch is provided with a conducting shoe (11) and a layer (15) thermally conducting but electrically insulating

Description

La présente invention concerne un élément chauffant destiné par exemple à être employé pour le chauffage d'un fluide caloporteur, notamment de l'eau, contenu à l'intérieur d'une enceinte étanche. On peut citer comme exemple d'une telle enceinte les ballons d'eau chaude, les radiateurs de chauffage à eau ou à huile, les sèche-serviettes... ces radiateurs et sèche-serviettes pouvant être utilisés isolément ou pouvant faire partie d'un réseau de chauffage.The present invention relates to a heating element intended for example to be used for heating of a heat transfer fluid, in particular water, contained in inside a sealed enclosure. We can cite as example of such a hot water tank enclosure, water or oil heating radiators, towel dryers ... these radiators and towel warmers can be used in isolation or can be part of a network of heating.

Un élément chauffant de ce type comprend généralement un élément résistif qui est disposé à l'intérieur d'une enveloppe tubulaire en matériau thermiquement conducteur et qui est relié à un circuit de puissance par l'intermédiaire d'un commutateur de puissance.A heating element of this type generally comprises a resistive element which is arranged inside a tubular envelope of thermally conductive material and which is connected to a power circuit by through a power switch.

Il existe également des éléments chauffants à double enveloppe dans lesquels deux enveloppes tubulaires thermiquement conductrices sont disposées coaxialement l'une par rapport à l'autre.There are also heating elements to double envelope in which two tubular envelopes thermally conductive are arranged coaxially one in relation to the other.

En cours d'utilisation, l'unique enveloppe ou l'enveloppe extérieure de l'élément chauffant traverse la paroi de l'enceinte pour être plongée dans le fluide sur la plus grande partie de sa longueur avec son extrémité fermée située du côté de l'intérieur de l'enceinte et son extrémité ouverte située du côté de l'extérieur pour permettre le raccordement électrique de l'élément résistif. A sa traversée de la paroi de l'enceinte, l'enveloppe est contenue dans une bride de montage qui assure à la foi son maintien en position et l'étanchéité nécessaire par rapport à la paroi de l'enceinte.In use, the single envelope or the outer shell of the heating element passes through the enclosure wall to be immersed in the fluid on most of its length with its end closed located on the interior side of the enclosure and its open end located on the outside to allow the electrical connection of the resistive element. When crossing the wall of the enclosure, the envelope is contained in a mounting flange which ensures faith its maintenance in position and the necessary tightness by compared to the wall of the enclosure.

Il est connu, notamment du document EP-A-0 317 435, que la bride de montage soit réalisée en matériau thermiquement conducteur et présente dans son épaisseur un logement dans lequel est installé le commutateur de puissance de telle manière que la bride de montage permette une dissipation de la chaleur engendrée lors du fonctionnement du commutateur de puissance. Ceci permet de manière particulièrement efficace de limiter l'échauffement du commutateur de puissance ou, autrement dit, d'assurer un refroidissement du commutateur de puissance. Toutefois, il est alors nécessaire de prévoir une extension de la bride de montage qui soit suffisante pour ménager dans son épaisseur le logement recevant le commutateur de puissance. La bride de montage présente alors un encombrement important qui rend difficile l'implantation de l'élément chauffant dans certains types d'enceintes.It is known, in particular from document EP-A-0 317 435, that the mounting flange is made of material thermally conductive and present in its thickness a housing in which the switch is installed power in such a way that the mounting flange allows dissipation of the heat generated during power switch operation. this allows particularly effective way of limiting heating of the power switch or otherwise said, to provide cooling for the power switch. However, it is then necessary to provide a extension of the mounting flange sufficient to arrange in its thickness the housing receiving the switch power. The mounting flange then presents a large size which makes implantation difficult of the heating element in certain types of enclosures.

Il serait donc intéressant de disposer d'un moyen pour limiter l'échauffement ou refroidir le commutateur de puissance qui soit de faible encombrement.It would therefore be interesting to have a means to limit overheating or cool the switch power that is compact.

Par ailleurs, il est connu du document FR-A-2 801 469 un élément chauffant comportant une enveloppe recevant une résistance chauffante noyée dans un matériau isolant et reliée à une source d'alimentation via un élément sensible à la température disposé dans une cavité de l'enveloppe pour couper l'alimentation de la résistance chauffante en fonction de la température. L'élément chauffant est agencé de telle manière qu'il règne la même température dans la cavité au niveau de l'élément sensible que dans le matériau isolant entourant la résistance afin de commander la coupure d'alimentation avec une bonne précision. Dans une telle structure, il n'est pas question de refroidir l'élément sensible qui doit au contraire être soumis à une température la plus voisine possible de celle de la résistance chauffante. L'enseignement de ce document ne peut donc être exploité pour résoudre le problème posé ci-dessus.Furthermore, it is known from the document FR-A-2 801 469 a heating element comprising an envelope receiving a heating resistance embedded in a insulating material and connected to a power source via a temperature-sensitive element placed in a envelope cavity to cut power to the heating resistance as a function of temperature. The heating element is arranged in such a way that it prevails the same temperature in the cavity at the sensitive element only in the surrounding insulating material resistance to control the power cut with good precision. In such a structure, it there is no question of cooling the sensitive element which on the contrary, must be subjected to the most possible close to that of the heating resistance. The teaching of this document cannot therefore be used to solve the problem posed above.

En vue de résoudre ce problème, on prévoit, selon l'invention, un élément chauffant comprenant au moins une enveloppe tubulaire thermiquement conductrice recevant au moins un élément résistif relié à un circuit de puissance comportant un commutateur de puissance qui est fixé dans l'enveloppe par l'intermédiaire de moyens d'échange thermique entre le commutateur de puissance et l'enveloppe.In order to solve this problem, according to the invention, a heating element comprising at least one thermally conductive tubular casing receiving at minus a resistive element connected to a power circuit comprising a power switch which is fixed in the envelope by means of heat exchange means between the power switch and the enclosure.

Ainsi, outre la protection de l'élément résistif et l'échange thermique entre celui-ci et le fluide caloporteur, l'enveloppe tubulaire assure par contact avec ce fluide caloporteur une fonction de dissipation de la chaleur engendrée lors du fonctionnement du commutateur de puissance. La liaison de l'enveloppe à la paroi de l'enceinte concourt également à la dissipation de la chaleur via l'enceinte. Ceci permet d'avoir une surface d'échange relativement grande pour le refroidissement du commutateur de puissance tout en conservant un encombrement limité. Le refroidissement efficace du commutateur de puissance ainsi obtenu permet d'augmenter la durée de vie de ce dernier. L'enveloppe tubulaire assure en outre une fonction de protection du commutateur de puissance vis-à-vis des agressions extérieures et facilite l'isolation électrique du commutateur de puissance par rapport au milieu extérieur.Thus, in addition to protecting the resistive element and the heat exchange between the latter and the heat transfer fluid, the tubular casing ensures by contact with this heat transfer fluid heat dissipation function generated during the operation of the power. The binding of the envelope to the wall of the enclosure also contributes to heat dissipation via the speaker. This allows for an exchange surface relatively large for switch cooling power while maintaining a limited footprint. Efficient cooling of the power switch thus obtained increases the service life of this last. The tubular casing also provides Protection function of the power switch vis-à-vis external aggressions and facilitates insulation power switch in relation to the middle outside.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit de modes de réalisation particuliers non limitatifs de l'invention.Other characteristics and advantages of the invention will emerge on reading the description which follows particular nonlimiting embodiments of the invention.

Il sera fait référence aux dessins annexés, parmi lesquels :

  • la figure 1 est une vue schématique partielle en coupe longitudinale d'un élément chauffant selon un premier mode de réalisation de l'invention,
  • la figure 2 est une vue analogue à celle de la figure 1 d'un élément chauffant selon un deuxième mode de réalisation de l'invention,
  • la figure 3 est une vue en coupe selon la ligne III-III de la figure 1 du sous-ensemble incorporant le commutateur de puissance,
  • la figure 4 est une vue analogue à la figure 3 de ce sous-ensemble selon une première variante de réalisation,
  • la figure 5 est une vue en élévation d'un sous-ensemble incorporant le commutateur de puissance, selon une deuxième variante de réalisation,
  • la figure 6 est une vue en coupe selon la ligne V-V de la figure 5 de ce sous-ensemble.
Reference will be made to the appended drawings, among which:
  • FIG. 1 is a partial schematic view in longitudinal section of a heating element according to a first embodiment of the invention,
  • FIG. 2 is a view similar to that of FIG. 1 of a heating element according to a second embodiment of the invention,
  • FIG. 3 is a sectional view along line III-III of FIG. 1 of the sub-assembly incorporating the power switch,
  • FIG. 4 is a view similar to FIG. 3 of this sub-assembly according to a first alternative embodiment,
  • FIG. 5 is an elevation view of a sub-assembly incorporating the power switch, according to a second alternative embodiment,
  • Figure 6 is a sectional view along line VV of Figure 5 of this sub-assembly.

L'invention est ici représentée et décrite en liaison avec un élément chauffant individuel, destiné à être monté sur une enceinte de fluide à chauffer (non représentée) à l'aide d'une bride de montage (elle-même non représentée) conçue pour se visser dans un trou taraudé prévu dans la paroi de cette enceinte. D'autres types de montage équivalents sont bien entendu envisageables.The invention is here represented and described in connection with an individual heating element, intended for be mounted on an enclosure of fluid to be heated (not shown) using a mounting flange (itself not shown) designed to be screwed into a tapped hole provided in the wall of this enclosure. Other types of equivalent mounting are of course conceivable.

En référence à la figure 1, l'élément chauffant désigné par la référence générale 1 comprend une résistance électrique blindée qui comporte une enveloppe métallique 2 à l'intérieur de laquelle est disposé un élément résistif 3 sous la forme ici d'un fil résistant agencé hélicoïdalement. L'élément résistif 3 s'étend dans une matière réfractaire électriquement isolante telle que de la magnésie en poudre 4, compactée à l'intérieur de l'enveloppe métallique 2. L'élément résistif possède deux extrémités 3a, 3b reliées à des conducteurs électriques 5, 6 qui traversent un élément obturateur 7 pour être connectés à un circuit de puissance. L'élément obturateur 7 divise hermétiquement l'enveloppe métallique 2 en deux sections 2a, 2b, l'élément résistif 3 étant contenu dans la section 2a. L'élément obturateur 7 est de préférence réalisé en un matériau thermiquement isolant.Referring to Figure 1, the heating element designated by the general reference 1 includes a resistor shielded electrical system that has a metal casing 2 inside which is arranged an element resistive 3 in the form here of a resistant wire arranged helically. The resistive element 3 extends in an electrically insulating refractory material such as powdered magnesia 4, compacted inside the metal casing 2. The resistive element has two ends 3a, 3b connected to electrical conductors 5, 6 which pass through a shutter element 7 to be connected to a power circuit. The shutter element 7 hermetically divides the metal casing 2 in two sections 2a, 2b, the resistive element 3 being contained in section 2a. The shutter element 7 is preferably made of a thermally insulating material.

Le circuit de puissance n'est pas visible en totalité sur la figure 1 et seul un commutateur de puissance 8 est représenté de façon schématique sur cette figure. The power circuit is not fully visible in Figure 1 and only one power switch 8 is shown schematically in this figure.

Le commutateur de puissance 8 est un triac relié au reste du circuit de puissance par des câbles 9 et est monté dans la section 2b de l'enveloppe métallique 2. Le commutateur de puissance 8 est reçu dans une cavité 10 qui est ménagée dans une semelle 11 et qui comporte un fond 12 contre lequel le commutateur de puissance 8 est plaqué. La cavité 10 est emplie d'une résine durcie 13 électriquement isolante qui assure le maintien en position du commutateur de puissance 8 par rapport à la semelle 11. La semelle 11 est réalisée en un matériau thermiquement conducteur tel que du laiton et présente à l'opposé de la cavité 10 une face 14 en portion de cylindre de section circulaire ayant un rayon sensiblement égal au rayon interne la section 2b de l'enveloppe 2. La face 14 de la semelle 11 est en appui contre une portion de la surface interne de la section 2b de l'enveloppe 2 par l'intermédiaire d'une couche électriquement isolante 15. La couche isolante 15 peut comprendre une ou deux feuilles de mica souple ou en un élastomère adapté par exemple à base de silicone, éventuellement associé à une graisse thermiquement conductrice et électriquement isolante. Dans le cas où on utilise un triac isolé, la couche 15 est facultative dans le cadre d'un simple isolement. Une résine 16 électriquement isolante et durcie remplit la section 2b de l'enveloppe 2 s'étendant au-delà de l'obturateur 7 et maintient en position le sous-ensemble constitué par le commutateur de puissance 8, la couche électriquement isolante 15 et la semelle 11. Lors de la fabrication, on insistera sur la qualité des contacts des pièces entre elles qui doivent permettre l'établissement d'une liaison d'échange thermique entre le commutateur de puissance 8 et l'enveloppe 2.Power switch 8 is a connected triac to the rest of the power circuit by cables 9 and is mounted in section 2b of the metal casing 2. The power switch 8 is received in a cavity 10 which is formed in a sole 11 and which has a bottom 12 against which the power switch 8 is plate. The cavity 10 is filled with a hardened resin 13 electrically insulating which keeps it in position of the power switch 8 relative to the sole 11. The sole 11 is made of a thermally material conductor such as brass and present at opposite of cavity 10 one face 14 in cylinder portion of circular section having a radius substantially equal to the internal radius section 2b of the envelope 2. The face 14 of the sole 11 is in abutment against a portion of the internal surface of section 2b of envelope 2 via an electrically insulating layer 15. The insulating layer 15 can comprise one or two flexible mica sheets or an elastomer adapted by example based on silicone, possibly associated with a thermally conductive and electrically insulating grease. In the case where an isolated triac is used, the layer 15 is optional in the context of a simple isolation. An electrically insulating and hardened resin 16 fills section 2b of envelope 2 extending beyond of the shutter 7 and keeps the sub-assembly in position constituted by the power switch 8, the electrically insulating layer 15 and the sole 11. During of the manufacturing, we will insist on the quality of the contacts parts between them which must allow the establishment a heat exchange link between the power switch 8 and enclosure 2.

On comprend qu'ainsi la chaleur produite par le commutateur de puissance 8 lors de son fonctionnement est dissipée via la semelle 11 par l'enveloppe 2 en contact avec le fluide caloporteur à réchauffer. Lorsque la bride est en un matériau thermiquement conducteur, une partie de la chaleur produite par le commutateur de puissance est également dissipée via la bride par la paroi de l'enceinte à laquelle l'élément chauffant est fixé.We understand that the heat produced by the power switch 8 during operation is dissipated via the sole 11 by the casing 2 in contact with the heat transfer fluid to be heated. When the flange is made of a thermally conductive material, part of heat produced by the power switch is also dissipated via the flange through the wall of the enclosure to which the heating element is attached.

En outre, le commutateur de puissance 8 se trouve dans un milieu (au sein de la cavité 10) qui tend à être soumis principalement à la température du fluide caloporteur et non à celle de l'élément résistif 3, ce qui favorise le refroidissement du commutateur de puissance 8. Pour renforcer cette séparation thermique de la cavité 10 et de l'élément résistif 3, des moyens d'isolation thermique peuvent être prévus entre la cavité 10 et la zone de l'élément chauffant immédiatement adjacente à l'élément résistif 3.In addition, the power switch 8 is located in a medium (within cavity 10) which tends to be mainly subject to the temperature of the heat transfer fluid and not that of the resistive element 3, which favors cooling the power switch 8. To reinforce this thermal separation of the cavity 10 and of the resistive element 3, means of thermal insulation can be provided between cavity 10 and the area of the heating element immediately adjacent to the resistive element 3.

Les éléments identiques ou analogues à ceux précédemment décrits porteront une référence numérique identique dans la suite de la description.Elements identical or analogous to those previously described will bear an identical reference number in the following description.

En référence aux figures 2 et 3 et selon le deuxième mode de réalisation, la résistance blindée est contenue à l'intérieur d'une deuxième enveloppe 17 qui s'étend coaxialement par rapport à l'enveloppe 2 et qui comporte une extrémité ouverte 17a et une extrémité fermée 17b. L'enveloppe 17 est ici réalisée en un métal tel que de l'acier inoxydable mais peut également être réalisée dans tout matériau thermiquement conducteur.With reference to Figures 2 and 3 and according to second embodiment, the armored resistance is contained inside a second envelope 17 which extends coaxially with respect to the envelope 2 and which has an open end 17a and a closed end 17b. The envelope 17 is here made of a metal such than stainless steel but can also be made in any thermally conductive material.

L'enveloppe 17 est partiellement remplie d'une matière réfractaire isolante électriquement telle que de la magnésie 26, compactée à l'intérieur de l'enveloppe 17, matière dans laquelle l'enveloppe 2 est incluse. Une partie de l'enveloppe 17 adjacente à son extrémité ouverte 17a s'étend au-delà de l'enveloppe 2 et reçoit le commutateur de puissance 8 qui, contrairement au mode de réalisation précédent, n'est plus disposé dans l'enveloppe 2. L'élément obturateur 7 est alors adjacent à l'extrémité ouverte de l'enveloppe 2 de sorte qu'il obture celle-ci.Envelope 17 is partially filled with electrically insulating refractory material such as magnesia 26, compacted inside the envelope 17, material in which the envelope 2 is included. A part of the envelope 17 adjacent to its open end 17a extends beyond the envelope 2 and receives the power switch 8 which, unlike the previous realization, is no longer placed in the envelope 2. The shutter element 7 is then adjacent to the open end of the casing 2 so that it closes it.

Le commutateur de puissance 8 est monté sur une semelle 11 possédant une cavité 10 ayant un fond 12 et des parois latérales recouverts d'une couche électriquement isolante 18. Une résine durcie 13 électriquement isolante remplit la cavité 10 et maintient le commutateur de puissance 8 en position. La semelle 11 est comme précédemment réalisée en un matériau thermiquement conducteur, ici du laiton, et possède une face 14 à l'opposé de la cavité 10 qui a une forme en portion de cylindre de section circulaire avec un rayon sensiblement égal au rayon interne de l'enveloppe 17.The power switch 8 is mounted on a sole 11 having a cavity 10 having a bottom 12 and side walls electrically coated insulator 18. Electrically hardened resin 13 insulator fills the cavity 10 and holds the switch of power 8 in position. The sole 11 is as before made of a thermally conductive material, here brass, and has a face 14 opposite to the cavity 10 which has a cylindrical portion shape of circular section with a radius substantially equal to inner radius of the envelope 17.

Le maintien en position de la semelle 11 dans la partie correspondante de l'enveloppe 17 est assuré par une résine durcie 23 électriquement isolante qui est contenue dans cette partie de l'enveloppe.Maintaining the sole 11 in position in the corresponding part of the envelope 17 is provided by an electrically insulating hardened resin 23 which is contained in this part of the envelope.

Selon une première variante de réalisation représentée à la figure 4, une saignée 24 est ménagée axialement dans la face 14 de la semelle 11.According to a first alternative embodiment shown in Figure 4, a groove 24 is formed axially in the face 14 of the sole 11.

Les opérations de montage du sous-ensemble incorporant le commutateur de puissance 8 débutent par la mise en place de la couche isolante 18 dans la cavité 10 de telle manière que cette couche isolante recouvre le fond 12 et les parois latérales de la cavité 10. Puis, le commutateur de puissance 8 est disposé dans la cavité 10 avant qu'une résine 13 électriquement isolante soit introduite dans la cavité 10. La résine 13 une fois durcie ne recouvre ici pas complètement le commutateur de puissance 8 et assure principalement une fonction de maintien en position du commutateur de puissance 8 et de la couche isolante 18 dans la cavité 10. La semelle 11 est ensuite montée dans l'enveloppe 17 de manière que la face 14 soit appliquée contre la surface interne de l'enveloppe 17 puis la résine 23 est introduite dans l'enveloppe 17. La résine est introduite par la saignée 4 de manière à obtenir un remplissage de la partie de l'enveloppe 17 adjacente à son extrémité 17a analogue au remplissage obtenu par une coulée en source. On évite ainsi que des bulles d'air soient emprisonnées dans la résine 23. La saignée 24 facilite ainsi le remplissage de l'enveloppe. La résine 23 une fois durcie assure le maintien dans l'enveloppe 17 de la semelle 11 et exerce également une fonction d'isolation électrique.The assembly operations of the sub-assembly incorporating power switch 8 start with setting in place of the insulating layer 18 in the cavity 10 of such that this insulating layer covers the bottom 12 and the side walls of the cavity 10. Then, the switch of power 8 is placed in the cavity 10 before an electrically insulating resin 13 is introduced in the cavity 10. The resin 13 once hardened does not completely cover the power switch here 8 and mainly provides a holding function in position of the power switch 8 and of the layer insulator 18 in the cavity 10. The sole 11 is then mounted in the envelope 17 so that the face 14 is applied against the internal surface of the envelope 17 then the resin 23 is introduced into the envelope 17. The resin is introduced by the groove 4 so as to obtain filling the adjacent part of the envelope 17 at its end 17a similar to the filling obtained by source casting. This prevents bubbles air are trapped in the resin 23. The bleeding 24 thus facilitates the filling of the envelope. Resin 23 once cured ensures retention in the envelope 17 of the sole 11 and also performs a function electrical insulation.

La saignée 24 présente un autre avantage lorsque l'enveloppe 17 est obtenue par enroulement d'une tôle sur elle-même puis soudure des bords de celle-ci. En effet, dans ce cas l'enveloppe 17 présente un renflement interne 25 correspondant à la soudure, qui peut être logé dans la saignée 24 de sorte que le renflement interne 25 n'empêche pas l'obtention d'une bonne adaptation de la face 14 avec la surface interne de l'enveloppe 17.Tapping 24 has another advantage when the envelope 17 is obtained by winding a sheet on itself then welding the edges of it. Indeed, in this case the envelope 17 has an internal bulge 25 corresponding to the weld, which can be housed in the grooved 24 so that the internal bulge 25 does not prevent not obtaining a good adaptation of the face 14 with the internal surface of the envelope 17.

Selon une deuxième variante, telle que représentée aux figures 5 et 6, la semelle 11 comporte à l'opposé de sa face 14 en portion de cylindre de section circulaire, une face 19 plane sur laquelle le commutateur de puissance 8 est fixé. Une couche isolante 18 est interposée entre la face 19 et le commutateur de puissance 8. La fixation du commutateur de puissance 8 est réalisée au moyen d'une vis 20 qui passe par un trou 21 réalisé dans le commutateur de puissance 8 et équipé d'une chemise épaulée 22 en matériau électriquement isolant qui, en coopérant avec la couche isolante 18, isole électriquement la semelle 11 et la vis 20 du commutateur de puissance 8.According to a second variant, as shown in Figures 5 and 6, the sole 11 has opposite of its face 14 in a portion of a cylinder of circular section, a flat face 19 on which the switch power 8 is fixed. An insulating layer 18 is interposed between face 19 and power switch 8. The the power switch 8 is fixed to the by means of a screw 20 which passes through a hole 21 made in the power switch 8 and fitted with a jacket shouldered 22 of electrically insulating material which, in cooperating with the insulating layer 18, electrically insulates the sole 11 and the screw 20 of the power switch 8.

La dissipation de la chaleur produite lors du fonctionnement du commutateur de puissance est alors assurée par l'enveloppe 17 via la semelle 11.The dissipation of the heat produced during power switch operation is ensured by the envelope 17 via the sole 11.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to embodiment described and variations may be made without departing from the scope of the invention as defined by the claims.

En particulier, d'autres matériaux que ceux mentionnés peuvent être utilisés dès lors qu'ils présentent des caractéristiques analogues.In particular, other materials than those mentioned can be used as soon as they have similar characteristics.

Par ailleurs, il est possible d'utiliser d'autres modes adaptés de fixation de la semelle dans l'enveloppe et du commutateur de puissance à la semelle.In addition, it is possible to use other suitable methods of fixing the sole in the envelope and from the power switch to the sole.

En outre, il est possible de se passer de la semelle 11 et d'utiliser d'autres formes de moyens d'échange thermique.In addition, it is possible to do without the sole 11 and use other forms of means heat exchange.

Claims (8)

Elément chauffant comprenant au moins une enveloppe tubulaire (2, 17) thermiquement conductrice, recevant au moins un élément résistif (3) relié à un circuit de puissance comportant un commutateur de puissance (8), caractérisé en ce que le commutateur de puissance est fixé dans l'enveloppe par l'intermédiaire de moyens d'échange thermique (11) entre le commutateur de puissance et l'enveloppe.Heating element comprising at least one thermally conductive tubular casing (2, 17), receiving at least one resistive element (3) connected to a power circuit comprising a power switch (8), characterized in that the power switch is fixed in the enclosure by means of heat exchange means (11) between the power switch and the enclosure. Elément chauffant selon la revendication 1, caractérisé en ce que le commutateur de puissance (8) est appliqué contre une portion de surface interne de l'enveloppe (2, 17).Heating element according to claim 1, characterized in that the power switch (8) is applied against a portion of the internal surface of the envelope (2, 17). Elément chauffant selon la revendication 2, caractérisé en ce que le commutateur de puissance (8) est monté sur une semelle (11) thermiquement conductrice et pourvue d'une face (14) de forme correspondant sensiblement à celle de la portion de surface interne de l'enveloppe (2, 17).Heating element according to claim 2, characterized in that the power switch (8) is mounted on a thermally conductive soleplate (11) and provided with a face (14) of shape corresponding substantially to that of the internal surface portion of the envelope (2, 17). Elément chauffant selon la revendication 3, caractérisé en ce que le commutateur de puissance (8) est reçu dans une cavité (10) de la semelle (11) qui comporte un fond (12) contre lequel le commutateur de puissance est plaqué et qui contient une résine (13) électriquement isolante dans laquelle est noyé le commutateur de puissance.Heating element according to claim 3, characterized in that the power switch (8) is received in a cavity (10) in the soleplate (11) which has a bottom (12) against which the power switch is pressed and which contains an electrically insulating resin (13) in which the power switch is embedded. Elément chauffant selon la revendication 3 ou la revendication 4, caractérisé en ce qu'au moins une couche électriquement isolante (18) est intercalée entre le commutateur de puissance (8) et la semelle (11).Heating element according to claim 3 or claim 4, characterized in that at least one electrically insulating layer (18) is interposed between the power switch (8) and the sole (11). Elément chauffant selon l'une quelconque des revendications 3 à 5, caractérisé en ce qu'au moins une couche électriquement isolante (15) est intercalée entre la semelle (11) et la surface interne de l'enveloppe (2, 17).Heating element according to any one of Claims 3 to 5, characterized in that at least one electrically insulating layer (15) is interposed between the soleplate (11) and the internal surface of the envelope (2, 17). Elément chauffant selon l'une quelconque des revendications 3 à 6, caractérisé en ce que la semelle (11) est maintenue en position dans l'enveloppe (2, 17) par une résine (16,23) contenue dans celle-ci.Heating element according to any one of Claims 3 to 6, characterized in that the sole (11) is held in position in the envelope (2, 17) by a resin (16,23) contained therein. Elément chauffant selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comporte deux enveloppes thermiquement conductrices (2, 17) qui sont disposées coaxialement l'une par rapport à l'autre, à savoir une enveloppe interne (2) et une enveloppe externe (17), et en ce que l'élément résistif (3) est disposé dans l'enveloppe interne et le commutateur de puissance (8) est disposé dans l'enveloppe externe.Heating element according to any one of Claims 1 to 6, characterized in that it comprises two thermally conductive envelopes (2, 17) which are arranged coaxially with respect to each other, namely an internal envelope (2 ) and an outer casing (17), and in that the resistive element (3) is arranged in the inner casing and the power switch (8) is disposed in the outer casing.
EP02291837A 2001-07-20 2002-07-19 Heating element Expired - Lifetime EP1278400B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0109723 2001-07-20
FR0109723A FR2827735B1 (en) 2001-07-20 2001-07-20 HEATING ELEMENT

Publications (3)

Publication Number Publication Date
EP1278400A2 true EP1278400A2 (en) 2003-01-22
EP1278400A3 EP1278400A3 (en) 2003-03-19
EP1278400B1 EP1278400B1 (en) 2004-05-12

Family

ID=8865746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02291837A Expired - Lifetime EP1278400B1 (en) 2001-07-20 2002-07-19 Heating element

Country Status (5)

Country Link
EP (1) EP1278400B1 (en)
AT (1) ATE266938T1 (en)
DE (1) DE60200470T2 (en)
ES (1) ES2219625T3 (en)
FR (1) FR2827735B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1599080A3 (en) * 2004-05-18 2006-03-15 Lacroix Electronique SRL Thermal bridge for heat dissipation from control circuits of fluid radiant elements
EP1655546A1 (en) 2003-12-09 2006-05-10 BORELLI Luigi Heating group for diathermic fluid radiant elements
WO2010069355A1 (en) * 2008-12-19 2010-06-24 Kautex Textron Cvs Limited Vehicular fluid heater
ITVI20120103A1 (en) * 2012-05-02 2013-11-03 Ht S P A HEATING DEVICE FOR FLUIDS
FR3007828A1 (en) * 2013-07-01 2015-01-02 Atlantic Industrie Sas HEATING ELEMENT AND WATER HEATER HAVING SUCH A HEATING ELEMENT
FR3019630A1 (en) * 2014-04-03 2015-10-09 Atlantic Industrie Sas HEATED FLANGE AND WATER HEATER EQUIPPED WITH SUCH A FLANGE
IT202200008582A1 (en) * 2022-04-29 2023-10-29 Ht S P A HEATING DEVICE FOR FLUIDS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2925085B1 (en) * 2014-03-27 2018-08-08 Shengquan Liang Electric hot water warmer and heating device employing such a warmer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480174A (en) * 1981-09-11 1984-10-30 Acra Electric Corporation Thermostatically controlled electric compressor sump heater having self-contained thermostat
EP0317435A1 (en) * 1987-11-19 1989-05-24 David André Insulated electrical heating element with a security device for detecting failure of the electrical insulation
FR2801469A1 (en) * 1999-11-23 2001-05-25 Turk & Hillinger Gmbh Electric heating cartridge with heating conductor wound on coil body surrounded by insulation esp. of magnesium oxide and arranged concentrically with this in metal casing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480174A (en) * 1981-09-11 1984-10-30 Acra Electric Corporation Thermostatically controlled electric compressor sump heater having self-contained thermostat
EP0317435A1 (en) * 1987-11-19 1989-05-24 David André Insulated electrical heating element with a security device for detecting failure of the electrical insulation
FR2801469A1 (en) * 1999-11-23 2001-05-25 Turk & Hillinger Gmbh Electric heating cartridge with heating conductor wound on coil body surrounded by insulation esp. of magnesium oxide and arranged concentrically with this in metal casing

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1655546A1 (en) 2003-12-09 2006-05-10 BORELLI Luigi Heating group for diathermic fluid radiant elements
EP1599080A3 (en) * 2004-05-18 2006-03-15 Lacroix Electronique SRL Thermal bridge for heat dissipation from control circuits of fluid radiant elements
WO2010069355A1 (en) * 2008-12-19 2010-06-24 Kautex Textron Cvs Limited Vehicular fluid heater
CN102239368A (en) * 2008-12-19 2011-11-09 考泰斯德事隆Cvs有限公司 Vehicular fluid heater
ITVI20120103A1 (en) * 2012-05-02 2013-11-03 Ht S P A HEATING DEVICE FOR FLUIDS
EP2661151A1 (en) * 2012-05-02 2013-11-06 HT S.p.A. Device for heating fluids
FR3007828A1 (en) * 2013-07-01 2015-01-02 Atlantic Industrie Sas HEATING ELEMENT AND WATER HEATER HAVING SUCH A HEATING ELEMENT
FR3019630A1 (en) * 2014-04-03 2015-10-09 Atlantic Industrie Sas HEATED FLANGE AND WATER HEATER EQUIPPED WITH SUCH A FLANGE
IT202200008582A1 (en) * 2022-04-29 2023-10-29 Ht S P A HEATING DEVICE FOR FLUIDS
EP4271128A1 (en) * 2022-04-29 2023-11-01 HT S.p.A. Fluid heating device

Also Published As

Publication number Publication date
ES2219625T3 (en) 2004-12-01
ATE266938T1 (en) 2004-05-15
FR2827735A1 (en) 2003-01-24
DE60200470D1 (en) 2004-06-17
FR2827735B1 (en) 2003-09-12
EP1278400A3 (en) 2003-03-19
EP1278400B1 (en) 2004-05-12
DE60200470T2 (en) 2005-05-25

Similar Documents

Publication Publication Date Title
EP2804516B1 (en) Towel-drying radiator, at least one towel-holding bar of which has a built-in heat sink in which an electrical heating cable is accommodated
FR2500228A1 (en) ELECTRIC COOKTOP HAVING A TEMPERATURE WARNING DEVICE
EP1278400B1 (en) Heating element
FR2471720A1 (en) ELECTRIC RESISTANCE HEATING ELEMENT
CA1259367A (en) Electric connection device for wall mounting on a direct current metallurgical furnace
FR2750793A1 (en) Internal thermal protection mechanism for three=phase sealed electrical compressors
FR2963531A1 (en) HEAT CARTRIDGE AND THERMOSTATIC ELEMENT COMPRISING SUCH A CARTRIDGE
WO2012013897A1 (en) Thermostatic valve comprising a heating cartridge
EP0949846B1 (en) Immersion heater for use in radiators of a heating system with hot water circulation
CA1299623C (en) Insulated electrical heating element equipped with a safety device for detecting faults in the electrical insulation
EP1798625A1 (en) Thermostatic control system for electric water heater
WO2014037242A1 (en) Device for electrically heating fluid for a motor vehicle, and associated heating circuit and heating and/or air conditioning device
FR2745147A1 (en) Resistive heating element enclosed in layered mica sheet
EP3510834B1 (en) Electric heating device
FR2912277A1 (en) Electrical heating apparatus, has screen with insulator whose melting temperature is greater than melting temperature of sheath, and heating element that is in contact with rear face connected to earth when sheath is melted
FR3007828A1 (en) HEATING ELEMENT AND WATER HEATER HAVING SUCH A HEATING ELEMENT
EP1156704B1 (en) Immersion heating device that could be used particularly in a water circulating heating radiator
EP0881653B1 (en) Fuse-holder device such as a well fuse for electrical apparatus
FR2681496A1 (en) Shielded heating elements with electrical supply and method of manufacture of such elements
FR2801469A1 (en) Electric heating cartridge with heating conductor wound on coil body surrounded by insulation esp. of magnesium oxide and arranged concentrically with this in metal casing
FR3019630A1 (en) HEATED FLANGE AND WATER HEATER EQUIPPED WITH SUCH A FLANGE
FR2709951A1 (en) Container of the feeding-bottle type
FR3075551A1 (en) HEATING DEVICE, ELECTRIC CIRCUIT EQUIPPED WITH SUCH A DEVICE AND FLUID HEATER COMPRISING SUCH A CIRCUIT
FR2511125A1 (en) Temp. regulated electric cooking plate - uses bimetallic strip mounted under non-heated zone of cooking plate to switch fraction of power supplied to plate
FR2875369A1 (en) Low temperature electric radiator unit for industrial or domestic use, includes electrically-insulating cellular foam material and adhesive in layered construction

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7H 05B 3/44 A

Ipc: 7H 05B 3/48 B

Ipc: 7H 05B 1/02 B

Ipc: 7H 05B 3/82 B

17P Request for examination filed

Effective date: 20030709

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

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

Ref country code: FI

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: 20040512

Ref country code: TR

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: 20040512

Ref country code: SK

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: 20040512

Ref country code: BG

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: 20040512

Ref country code: CZ

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: 20040512

Ref country code: IE

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: 20040512

Ref country code: EE

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: 20040512

Ref country code: CY

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: 20040512

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

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 60200470

Country of ref document: DE

Date of ref document: 20040617

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

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

Ref country code: LU

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

Effective date: 20040719

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

Effective date: 20040625

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

Ref country code: MC

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

Effective date: 20040731

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: 20040812

Ref country code: DK

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: 20040812

Ref country code: GR

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: 20040812

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2219625

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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: 20050215

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

Ref country code: PT

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

Effective date: 20041012

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

Ref country code: ES

Payment date: 20090722

Year of fee payment: 8

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

Ref country code: AT

Payment date: 20090715

Year of fee payment: 8

Ref country code: CH

Payment date: 20090715

Year of fee payment: 8

Ref country code: NL

Payment date: 20090730

Year of fee payment: 8

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

Ref country code: IT

Payment date: 20090728

Year of fee payment: 8

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20110201

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: CH

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

Effective date: 20100731

Ref country code: LI

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

Effective date: 20100731

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

Ref country code: AT

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

Effective date: 20100719

Ref country code: NL

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

Effective date: 20110201

Ref country code: IT

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

Effective date: 20100719

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110818

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: 20100720

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

Ref country code: BE

Payment date: 20130719

Year of fee payment: 12

Ref country code: DE

Payment date: 20130722

Year of fee payment: 12

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

Ref country code: GB

Payment date: 20130719

Year of fee payment: 12

Ref country code: FR

Payment date: 20130722

Year of fee payment: 12

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60200470

Country of ref document: DE

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

Effective date: 20140719

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150331

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: 20150203

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60200470

Country of ref document: DE

Effective date: 20150203

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

Ref country code: FR

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

Effective date: 20140731

Ref country code: GB

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

Effective date: 20140719

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

Ref country code: BE

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

Effective date: 20140731