EP1156704A1 - Immersion heating device that could be used particularly in a water circulating heating radiator - Google Patents

Immersion heating device that could be used particularly in a water circulating heating radiator Download PDF

Info

Publication number
EP1156704A1
EP1156704A1 EP01401278A EP01401278A EP1156704A1 EP 1156704 A1 EP1156704 A1 EP 1156704A1 EP 01401278 A EP01401278 A EP 01401278A EP 01401278 A EP01401278 A EP 01401278A EP 1156704 A1 EP1156704 A1 EP 1156704A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
heating
thermal circuit
radiator
transfer liquid
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
EP01401278A
Other languages
German (de)
French (fr)
Other versions
EP1156704B1 (en
Inventor
Leak Nirong Chuop
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.)
Zehnder Group Participacions SAS
Original Assignee
Ateliers de Construction de Vaux Andigny ACOVA
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 Ateliers de Construction de Vaux Andigny ACOVA filed Critical Ateliers de Construction de Vaux Andigny ACOVA
Publication of EP1156704A1 publication Critical patent/EP1156704A1/en
Application granted granted Critical
Publication of EP1156704B1 publication Critical patent/EP1156704B1/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
    • H05B1/0202—Switches
    • H05B1/0213—Switches using bimetallic elements
    • 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
    • H05B3/48—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 device forming immersion heater which can be used in particular in a water circulation heating radiator.
  • This device is generally placed vertically in a collecting tube of a space heating radiator water circulation, such as for example a radiator towel dryer, so heat the water in this radiator.
  • a space heating radiator water circulation such as for example a radiator towel dryer
  • the object of the present invention is to eliminate the above drawback by proposing a device forming immersion heater self-maintained at a temperature determined below a superheat temperature in if there is no water in the radiator.
  • the device forming immersion heater of the type comprising a collector in the form of a tube tightly closed to both ends and containing a heat transfer liquid to be heated and, housed in the collector while immersed in the liquid coolant, a waterproof cartridge heating to internal heating electrical resistance embedded in the cartridge by being electrically isolated from this last, is characterized in that it includes a circuit breaker thermal housed in the collector so waterproof by being electrically isolated from the liquid coolant and connected in series with the resistor electric heater occupying a position normally closed power supply of this resistance, the thermal circuit breaker being able open when the heat transfer fluid is abnormally heated to a temperature equal to or greater than one predetermined threshold value.
  • the immersion heater device further includes an electrical resistor connected in parallel to the thermal cut-out and allowing the passage of an electric current in the resistance electric heater when the thermal cut-out is open and of a value ensuring the heating of the heat transfer liquid at a holding temperature of thermal circuit breaker in open position.
  • the temperature keeping the circuit breaker at open position is below the threshold temperature predetermined.
  • thermal cut-out is brought to again in closed position by disconnecting the resistance electric heater from its power source to the coolant has cooled down.
  • the thermal circuit breaker is consisting of a bimetallic strip.
  • the thermal circuit breaker and the electrical resistance in parallel are housed in a waterproof housing integral with the cartridge.
  • the device further comprises a fuse connected in series with the heating resistor and housed in the thermal cut-out and resistance box parallel electric.
  • the invention also relates to a radiator for water circulation heating, such as for example a towel radiator, and which is characterized in that that it is equipped with an immersion heater device such as previously defined.
  • the immersion heater device will be described in the application to a heating radiator at water circulation, such as for example a radiator towel dryer, in which it is integrated for heat the circulating water, but it is understood that it can be used for other different applications requiring the heating of a liquid or a fluid.
  • the device forming immersion heater includes a tube-shaped manifold 1 cylindrical metal closed tightly to both ends and containing a heat transfer liquid to be heated 2, which can be electrically insulating and constituted by mineral oil, preferably of the parafinic type to high viscosity index.
  • mineral oil is that of the company SHELL marketed under the name "SHELLFLEX" type 110 FC.
  • the device further comprises, housed in the collector 1 by bathing in the heat transfer liquid 2, a heating cartridge 3 for heating the heat transfer liquid 2 to bring water from the radiator to a certain temperature.
  • the heating cartridge 3 is consisting of a metallic cylindrical tube 4 in which has an internal electrical resistance heater 5 embedded in magnesia M compacted in the tube 4 in order to electrically isolate the resistor 5 from the tube 4.
  • Resistor 5 can consist of a wire conductor wound in a spiral with contiguous or non-contiguous turns having substantially the shape of an elongated U so that these two free ends leaving the tube 4 are connected respectively to two external conductive wires supply 6.
  • the heating cartridge 3 is fixed in the collector 1 substantially coaxially with the latter in having one of its floating free ends and its opposite end secured to a support sleeve 7 made of an electrically insulating material fixed to through one 1a of the end walls of the manifold 1.
  • the support sleeve 7 comprises a cylindrical part externally threaded 7a to engage in a hole corresponding thread 1b passing through the end wall 1a of the manifold 1 and a flange portion 7b coming to bear on the external face of the wall end when the support sleeve 7 is blocked by screwing into the wall.
  • This sleeve includes besides a cylindrical end 7c in which is secured, by welding or gluing, the end corresponding to the heating cartridge 3.
  • the wires power supply 6 connected to both ends of the heating resistance 5 pass through an internal bore of the support sleeve 7 for projecting outside the collector 1.
  • the device forming immersion heater further includes a circuit breaker or thermal switch 8 sealed in the collector 1 by being connected in series with the resistor electric heater 5.
  • the circuit breaker 8 is preferably consisting of a bimetal diagram schematically in the figures 2 and 3, occupying a normally closed position electric power supply to the resistor heating 5 and can open when the liquid coolant 2 is brought to an abnormal temperature of overheating greater than or equal to a threshold value predetermined.
  • An electrical resistance 9 is connected in parallel to the thermal circuit breaker 8 and allows the passage of a electric current in the heating resistor 5 when the thermal circuit breaker 8 is open.
  • the resistance 9 has an ohmic value ensuring the passage a current allowing the heating of the liquid coolant 2 at a circuit breaker holding temperature thermal 8 in the open position, this holding temperature being below the temperature of predetermined threshold.
  • the circuit breaker 8 and the resistor 9 can be housed in a waterproof case 10 embedded in the liquid coolant 2 and integral with the tube 4 of the cartridge 3 in coaxially extending it.
  • Box 10 can be fixed for example by welding to tube 4 of the cartridge 3 with the presence of a transverse wall of separation 11 between housing 10 and tube 4, the wall 11 being provided with two holes for passage of the heating resistor 3 for its connection with the circuit breaker 8 and the parallel resistance 9.
  • a fuse 12 is connected in series with the resistor 5 of circuit breaker 8 and, as is known in the area of water circulation radiators, thermostat 13 is also connected in series with the fuse 12. This and thermostat 13 can be accommodated in the housing 10.
  • the circuit breaker 8 and the parallel resistor 9 can be encapsulated in a small housing 14 housed in the housing 10.
  • the thermal circuit breaker 8 occupies its closed position shown in Figure 2 and the radiator normally heats the ambient environment with adjustment of the heating temperature using the thermostat 13.
  • the normal temperature of heater of the immersion heater can be attached to about 80 ° C for a nominal electrical power of the electrical resistance 5 of approximately 900 Watts.
  • the circuit breaker thermal 8 will open from a temperature of predetermined threshold of the immersion heater, for example at from 150 ° C, as shown in Figure 3, and the resistor 9 then lets a current flow, for example of a few milliamps, which corresponds to a value of determined temperature below the temperature of threshold above reached, to maintain in position the circuit breaker 8.
  • the value ohmic resistance 9 can be set so that the thermal cut-out is kept in position opening at a temperature of the order of 100 to 110 ° C preventing the closing of this thermal circuit breaker.

Landscapes

  • Resistance Heating (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Control Of Resistance Heating (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

The thermal insert consists of a heating cartridge (3) within a sealed tube (1) which contains a heat carrying liquid (2). The cartridge includes a resistor (5), thermal cut-out (8) with parallel resistor (9) to maintain a cut-out operation until water circulation is restored and a fuse (12) to protect against electrical faults An Independent claim is made for a radiator which uses the thermal insert

Description

La présente invention concerne un dispositif formant thermoplongeur pouvant être utilisé notamment dans un radiateur de chauffage à circulation d'eau.The present invention relates to a device forming immersion heater which can be used in particular in a water circulation heating radiator.

La demande de brevet français publiée sous le No. 2 777 410 au nom de la demanderesse décrit un tel dispositif comprenant un collecteur en forme de tube fermé de façon étanche à ses deux extrémités et contenant un liquide caloporteur à chauffer et, logée dans le collecteur en baignant dans le liquide caloporteur, une cartouche étanche chauffante à résistance électrique interne chauffante noyée dans la cartouche en étant électriquement isolée de cette dernière.The French patent application published under No. 2,777,410 in the name of the plaintiff describes such device comprising a tube-shaped collector sealed at both ends and containing a heat transfer liquid to be heated and housed in the collector by bathing in the heat transfer liquid, a waterproof heater cartridge with electrical resistance internal heater embedded in the cartridge being electrically isolated from the latter.

Ce dispositif est placé généralement verticalement dans un tube collecteur d'un radiateur de chauffage à circulation d'eau, tel que par exemple un radiateur sèche-serviettes, pour ainsi chauffer l'eau dans ce radiateur.This device is generally placed vertically in a collecting tube of a space heating radiator water circulation, such as for example a radiator towel dryer, so heat the water in this radiator.

Il arrive parfois, pour des raisons particulières, que l'eau ne circule plus au travers d'un radiateur, par exemple à cause d'une défectuosité de la pompe d'alimentation en eau.Sometimes, for special reasons, that the water no longer circulates through a radiator, for example due to a pump fault water supply.

L'absence d'eau dans le radiateur provoque une surchauffe du dispositif formant thermoplongeur pouvant aller jusqu'à sa destruction.The absence of water in the radiator causes a overheating of the immersion heater device which may go to its destruction.

La présente invention a pour but d'éliminer l'inconvénient ci-dessus en proposant un dispositif formant thermoplongeur automaintenu à une température déterminée inférieure à une température de surchauffe en cas d'absence d'eau dans le radiateur.The object of the present invention is to eliminate the above drawback by proposing a device forming immersion heater self-maintained at a temperature determined below a superheat temperature in if there is no water in the radiator.

A cet effet, selon l'invention, le dispositif formant thermoplongeur, du type comprenant un collecteur en forme de tube fermé de façon étanche à ses deux extrémités et contenant un liquide caloporteur à chauffer et, logée dans le collecteur en baignant dans le liquide caloporteur, une cartouche étanche chauffante à résistance électrique interne chauffante noyée dans la cartouche en étant électriquement isolée de cette dernière, est caractérisé en ce qu'il comprend un coupe-circuit thermique logé dans le collecteur de façon étanche en étant électriquement isolé du liquide caloporteur et relié en série avec la résistance électrique chauffante en occupant une position normalement fermée d'alimentation en courant électrique de cette résistance, le coupe-circuit thermique pouvant s'ouvrir lorsque le liquide caloporteur est anormalement chauffé à une température égale ou supérieure à une valeur de seuil prédéterminée.To this end, according to the invention, the device forming immersion heater, of the type comprising a collector in the form of a tube tightly closed to both ends and containing a heat transfer liquid to be heated and, housed in the collector while immersed in the liquid coolant, a waterproof cartridge heating to internal heating electrical resistance embedded in the cartridge by being electrically isolated from this last, is characterized in that it includes a circuit breaker thermal housed in the collector so waterproof by being electrically isolated from the liquid coolant and connected in series with the resistor electric heater occupying a position normally closed power supply of this resistance, the thermal circuit breaker being able open when the heat transfer fluid is abnormally heated to a temperature equal to or greater than one predetermined threshold value.

De préférence, le dispositif formant thermoplongeur comprend en outre une résistance électrique reliée en parallèle au coupe-circuit thermique et permettant le passage d'un courant électrique dans la résistance électrique chauffante lorsque le coupe-circuit thermique est ouvert et d'une valeur assurant le chauffage du liquide caloporteur à une température de maintien du coupe-circuit thermique en position ouverte.Preferably, the immersion heater device further includes an electrical resistor connected in parallel to the thermal cut-out and allowing the passage of an electric current in the resistance electric heater when the thermal cut-out is open and of a value ensuring the heating of the heat transfer liquid at a holding temperature of thermal circuit breaker in open position.

La température de maintien du coupe-circuit à sa position ouverte est inférieure à la température de seuil prédéterminée.The temperature keeping the circuit breaker at open position is below the threshold temperature predetermined.

En outre, le coupe-circuit thermique est amené à nouveau en position fermée en débranchant la résistance électrique chauffante de sa source d'alimentation jusqu'à ce que le liquide caloporteur se soit refroidi.In addition, the thermal cut-out is brought to again in closed position by disconnecting the resistance electric heater from its power source to the coolant has cooled down.

De préférence, le coupe-circuit thermique est constitué par un bilame.Preferably, the thermal circuit breaker is consisting of a bimetallic strip.

Avantageusement, le coupe-circuit thermique et la résistance électrique en parallèle sont logés dans un boítier étanche solidaire de la cartouche.Advantageously, the thermal circuit breaker and the electrical resistance in parallel are housed in a waterproof housing integral with the cartridge.

Le dispositif comprend en outre un fusible relié en série avec la résistance chauffante et logé dans le boítier du coupe-circuit thermique et de la résistance électrique parallèle.The device further comprises a fuse connected in series with the heating resistor and housed in the thermal cut-out and resistance box parallel electric.

L'invention vise également un radiateur de chauffage à circulation d'eau, tel que par exemple un radiateur sèche-serviettes, et qui est caractérisé en ce qu'il est équipé d'un dispositif thermoplongeur tel que défini précédemment.The invention also relates to a radiator for water circulation heating, such as for example a towel radiator, and which is characterized in that that it is equipped with an immersion heater device such as previously defined.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaítront plus clairement dans la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • la figure 1 est une vue en coupe longitudinale du dispositif formant thermoplongeur de l'invention ;
  • la figure 2 représente le schéma électrique du dispositif formant thermoplongeur à coupe-circuit thermique conforme à l'invention en position normalement fermée ; et
  • la figure 3 est une vue du schéma électrique de la figure 2 où le coupe-circuit thermique est maintenu en position d'ouverture suite à une surchauffe du dispositif formant thermoplongeur.
The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating an embodiment. of the invention and in which:
  • Figure 1 is a longitudinal sectional view of the immersion heater device of the invention;
  • FIG. 2 represents the electrical diagram of the device forming an immersion heater with thermal circuit breaker according to the invention in the normally closed position; and
  • Figure 3 is a view of the electrical diagram of Figure 2 where the thermal circuit breaker is maintained in the open position due to overheating of the device forming immersion heater.

Le dispositif formant thermoplongeur va être décrit dans l'application à un radiateur de chauffage à circulation d'eau, tel que par exemple un radiateur sèche-serviettes, dans lequel il est intégré pour chauffer l'eau circulant, mais il est bien entendu qu'il peut être utilisé pour d'autres applications différentes nécessitant le chauffage d'un liquide ou d'un fluide.The immersion heater device will be described in the application to a heating radiator at water circulation, such as for example a radiator towel dryer, in which it is integrated for heat the circulating water, but it is understood that it can be used for other different applications requiring the heating of a liquid or a fluid.

En se reportant aux figures, le dispositif formant thermoplongeur comprend un collecteur 1 en forme de tube cylindrique métallique fermé de façon étanche à ses deux extrémités et contenant un liquide caloporteur à chauffer 2, qui peut être électriquement isolant et constitué par de l'huile minérale, de préférence du type parafinique à haut indice de viscosité. A titre d'exemple, l'huile minérale est celle de la société SHELL commercialisée sous la dénomination "SHELLFLEX" type 110 FC.Referring to the figures, the device forming immersion heater includes a tube-shaped manifold 1 cylindrical metal closed tightly to both ends and containing a heat transfer liquid to be heated 2, which can be electrically insulating and constituted by mineral oil, preferably of the parafinic type to high viscosity index. For example, oil mineral is that of the company SHELL marketed under the name "SHELLFLEX" type 110 FC.

Le dispositif comprend en outre, logée dans le collecteur 1 en baignant dans le liquide caloporteur 2, une cartouche chauffante 3 permettant de chauffer le liquide caloporteur 2 pour porter l'eau du radiateur à une température déterminée. La cartouche chauffante 3 est constituée par un tube cylindrique métallique 4 dans lequel se trouve une résistance électrique interne chauffante 5 noyée dans de la magnésie M compactée dans le tube 4 afin d'isoler électriquement la résistance 5 du tube 4. La résistance 5 peut être constituée d'un fil conducteur enroulé en spirale à spires jointives ou non en ayant sensiblement la forme d'un U allongé de façon que ces deux extrémités libres sortant du tube 4 soient reliées respectivement à deux fils conducteurs externes d'alimentation 6.The device further comprises, housed in the collector 1 by bathing in the heat transfer liquid 2, a heating cartridge 3 for heating the heat transfer liquid 2 to bring water from the radiator to a certain temperature. The heating cartridge 3 is consisting of a metallic cylindrical tube 4 in which has an internal electrical resistance heater 5 embedded in magnesia M compacted in the tube 4 in order to electrically isolate the resistor 5 from the tube 4. Resistor 5 can consist of a wire conductor wound in a spiral with contiguous or non-contiguous turns having substantially the shape of an elongated U so that these two free ends leaving the tube 4 are connected respectively to two external conductive wires supply 6.

La cartouche chauffante 3 est fixée dans le collecteur 1 sensiblement coaxialement à celui-ci en ayant l'une de ses extrémités libres flottante et son extrémité opposée solidaire d'un manchon de support 7 réalisé en un matériau électriquement isolant fixé à travers l'une 1a des parois d'extrémités du collecteur 1. Le manchon de support 7 comprend une partie cylindrique filetée extérieurement 7a pour s'engager dans un trou taraudé correspondant 1b traversant la paroi d'extrémité 1a du collecteur 1 et une partie formant collerette 7b venant en appui sur la face externe de la paroi d'extrémité la lorsque le manchon de support 7 est bloqué par vissage dans la paroi la. Ce manchon comprend en outre une extrémité cylindrique 7c dans laquelle est solidarisée, par soudage ou par collage, l'extrémité correspondante de la cartouche chauffante 3. Les fils d'alimentation 6 reliés aux deux extrémités de la résistance chauffante 5 traversent un perçage interne du manchon de support 7 pour faire saillie à l'extérieur du collecteur 1.The heating cartridge 3 is fixed in the collector 1 substantially coaxially with the latter in having one of its floating free ends and its opposite end secured to a support sleeve 7 made of an electrically insulating material fixed to through one 1a of the end walls of the manifold 1. The support sleeve 7 comprises a cylindrical part externally threaded 7a to engage in a hole corresponding thread 1b passing through the end wall 1a of the manifold 1 and a flange portion 7b coming to bear on the external face of the wall end when the support sleeve 7 is blocked by screwing into the wall. This sleeve includes besides a cylindrical end 7c in which is secured, by welding or gluing, the end corresponding to the heating cartridge 3. The wires power supply 6 connected to both ends of the heating resistance 5 pass through an internal bore of the support sleeve 7 for projecting outside the collector 1.

Le dispositif thermoplongeur décrit jusqu'à maintenant est conforme à celui décrit dans la demande de brevet français No. 2 777 410 mentionnée précédemment. The immersion heater device described up to now conforms to that described in the request for French Patent No. 2,777,410 mentioned previously.

Selon l'invention, le dispositif formant thermoplongeur comprend en outre un coupe-circuit ou interrupteur thermique 8 logé de façon étanche dans le collecteur 1 en étant relié en série avec la résistance électrique chauffante 5. Le coupe-circuit 8 est de préférence constitué par un bilame schématisé aux figures 2 et 3, occupant une position normalement fermée d'alimentation en courant électrique de la résistance chauffante 5 et pouvant s'ouvrir lorsque le liquide caloporteur 2 est porté à une température anormale de surchauffe supérieure ou égale à une valeur de seuil prédéterminée.According to the invention, the device forming immersion heater further includes a circuit breaker or thermal switch 8 sealed in the collector 1 by being connected in series with the resistor electric heater 5. The circuit breaker 8 is preferably consisting of a bimetal diagram schematically in the figures 2 and 3, occupying a normally closed position electric power supply to the resistor heating 5 and can open when the liquid coolant 2 is brought to an abnormal temperature of overheating greater than or equal to a threshold value predetermined.

Une résistance électrique 9 est reliée en parallèle au coupe-circuit thermique 8 et permet le passage d'un courant électrique dans la résistance chauffante 5 lorsque le coupe-circuit thermique 8 est ouvert. La résistance 9 a une valeur ohmique assurant le passage d'un courant permettant le chauffage du liquide caloporteur 2 à une température de maintien du coupe-circuit thermique 8 en position ouverte, cette température de maintien étant inférieure à la température de seuil prédéterminée.An electrical resistance 9 is connected in parallel to the thermal circuit breaker 8 and allows the passage of a electric current in the heating resistor 5 when the thermal circuit breaker 8 is open. The resistance 9 has an ohmic value ensuring the passage a current allowing the heating of the liquid coolant 2 at a circuit breaker holding temperature thermal 8 in the open position, this holding temperature being below the temperature of predetermined threshold.

Le coupe-circuit 8 et la résistance 9 peuvent être logés dans un boítier étanche 10 noyé dans le liquide caloporteur 2 et solidaire du tube 4 de la cartouche 3 en prolongeant coaxialement celui-ci. Le boítier 10 peut être fixé par exemple par soudage au tube 4 de la cartouche 3 avec la présence d'une paroi transversale de séparation 11 entre boítier 10 et tube 4, la paroi 11 étant pourvue de deux perçages de passage de la résistance chauffante 3 pour sa liaison avec le coupe-circuit 8 et la résistance parallèle 9.The circuit breaker 8 and the resistor 9 can be housed in a waterproof case 10 embedded in the liquid coolant 2 and integral with the tube 4 of the cartridge 3 in coaxially extending it. Box 10 can be fixed for example by welding to tube 4 of the cartridge 3 with the presence of a transverse wall of separation 11 between housing 10 and tube 4, the wall 11 being provided with two holes for passage of the heating resistor 3 for its connection with the circuit breaker 8 and the parallel resistance 9.

Un fusible 12 est relié en série avec la résistance 5 de coupe-circuit 8 et, comme cela est connu dans le domaine des radiateurs à circulation d'eau, un thermostat 13 est également relié en série avec le fusible 12. Ce dernier et le thermostat 13 pouvant être logés dans le boítier 10.A fuse 12 is connected in series with the resistor 5 of circuit breaker 8 and, as is known in the area of water circulation radiators, thermostat 13 is also connected in series with the fuse 12. This and thermostat 13 can be accommodated in the housing 10.

Le coupe-circuit 8 et la résistance parallèle 9 peuvent être encapsulés dans un petit boítier 14 logé dans le boítier 10.The circuit breaker 8 and the parallel resistor 9 can be encapsulated in a small housing 14 housed in the housing 10.

Le fonctionnement du dispositif formant thermoplongeur résulte déjà de la description qui en a été faite ci-dessus et va être maintenant expliqué.The operation of the device forming immersion heater already results from the description which has been made above and will now be explained.

En fonctionnement normal selon lequel le radiateur est rempli d'eau, le coupe-circuit thermique 8 occupe sa position de fermeture représentée en figure 2 et le radiateur chauffe normalement l'environnement ambiant avec réglage de la température de chauffe à l'aide du thermostat 13. Par exemple, la température normale de chauffe du dispositif thermoplongeur peut être fixée à environ 80°C pour une puissance électrique nominale de la résistance électrique 5 d'environ 900 Watts.In normal operation that the radiator is filled with water, the thermal circuit breaker 8 occupies its closed position shown in Figure 2 and the radiator normally heats the ambient environment with adjustment of the heating temperature using the thermostat 13. For example, the normal temperature of heater of the immersion heater can be attached to about 80 ° C for a nominal electrical power of the electrical resistance 5 of approximately 900 Watts.

Lors d'un fonctionnement anormal résultant de l'absence d'eau dans le radiateur, le coupe-circuit thermique 8 va s'ouvrir à partir d'une température de seuil prédéterminée du thermoplongeur, par exemple à partir de 150°C, comme représenté en figure 3, et la résistance 9 laisse alors passer un courant, par exemple de quelques milliampères, qui correspond à une valeur de température déterminée inférieure à la température de seuil ci-dessus atteinte, pour maintenir en position d'ouverture le coupe-circuit 8. Par exemple, la valeur ohmique de la résistance 9 peut être établie de façon que le coupe-circuit thermique soit maintenu en position d'ouverture à une température de l'ordre de 100 à 110°C empêchant la fermeture de ce coupe-circuit thermique. Une fois ce fonctionnement anormal détecté par l'utilisateur, celui-ci déconnecte de sa source d'alimentation le dispositif thermoplongeur jusqu'à ce que le coupe-circuit 8 se referme au bout de quelques minutes après refroidissement du liquide caloporteur 2 pendant que l'utilisateur remet de l'eau dans le radiateur.During abnormal operation resulting from no water in the radiator, the circuit breaker thermal 8 will open from a temperature of predetermined threshold of the immersion heater, for example at from 150 ° C, as shown in Figure 3, and the resistor 9 then lets a current flow, for example of a few milliamps, which corresponds to a value of determined temperature below the temperature of threshold above reached, to maintain in position the circuit breaker 8. For example, the value ohmic resistance 9 can be set so that the thermal cut-out is kept in position opening at a temperature of the order of 100 to 110 ° C preventing the closing of this thermal circuit breaker. A once this abnormal operation detected by the user, it disconnects from its power source the immersion heater until the circuit breaker 8 closes after a few minutes cooling of the heat transfer liquid 2 while the user puts water back into the radiator.

Claims (9)

Dispositif formant thermoplongeur comprenant un collecteur (1) en forme de tube fermé de façon étanche à ses deux extrémités et contenant un liquide caloporteur à chauffer (2) et, logée dans le collecteur (1) en baignant dans le liquide caloporteur (2), une cartouche étanche chauffante (3) à résistance électrique interne chauffante (5) noyée dans la cartouche (3) en étant électriquement isolée de cette dernière, caractérisé en ce qu'il comprend un coupe-circuit thermique (8) logé dans le collecteur (1) de façon étanche en étant électriquement isolé du liquide caloporteur (2) et relié en série avec la résistance électrique chauffante (5) en occupant une position normalement fermée d'alimentation en courant électrique de la résistance électrique (5), le coupe-circuit thermique (8) pouvant s'ouvrir lorsque le liquide caloporteur (2) est anormalement chauffé à une température égale ou supérieure à une valeur de seuil prédéterminée.Device forming an immersion heater comprising a collector (1) in the form of a tube closed in leaktight manner at its two ends and containing a heat-transfer liquid to be heated (2) and, housed in the collector (1) while immersed in the heat-transfer liquid (2), a waterproof heating cartridge (3) with internal heating electrical resistance (5) embedded in the cartridge (3) being electrically isolated from the latter, characterized in that it comprises a thermal circuit breaker (8) housed in the collector ( 1) in a leaktight manner by being electrically isolated from the heat transfer liquid (2) and connected in series with the electric heating resistor (5) by occupying a normally closed position for supplying electric current to the electric resistance (5), thermal circuit (8) capable of opening when the heat transfer liquid (2) is abnormally heated to a temperature equal to or greater than a predetermined threshold value. Dispositif selon la revendication 1, caractérisé en ce qu'il comprend en outre une résistance électrique (9) reliée en parallèle au coupe-circuit thermique (8) et permettant le passage d'un courant électrique dans la résistance électrique chauffante (5) lorsque le coupe-circuit thermique (8) est ouvert et d'une valeur assurant le chauffage du liquide caloporteur à une température de maintien du coupe-circuit thermique (8) en position ouverte.Device according to claim 1, characterized in that it further comprises an electrical resistance (9) connected in parallel to the thermal circuit breaker (8) and allowing the passage of an electric current through the electric heating resistance (5) when the thermal circuit breaker (8) is open and of a value ensuring the heating of the heat transfer liquid to a temperature for maintaining the thermal circuit breaker (8) in the open position. Dispositif selon la revendication 2, caractérisé en ce que la température de maintien du coupe-circuit thermique (8) en position ouverte est inférieure à la température de seuil prédéterminée.Device according to claim 2, characterized in that the temperature for maintaining the thermal circuit breaker (8) in the open position is lower than the predetermined threshold temperature. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le coupe-circuit thermique (8) est amené à nouveau en position fermée en débranchant la résistance électrique chauffante (5) de sa source d'alimentation jusqu'à ce que le liquide caloporteur (2) se soit refroidi.Device according to claim 2 or 3, characterized in that the thermal circuit breaker (8) is brought back to the closed position by disconnecting the electric heating resistor (5) from its power source until the heat transfer liquid (2) has cooled down. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le coupe-circuit thermique (8) est constitué par un bilame.Device according to one of the preceding claims, characterized in that the thermal circuit breaker (8) consists of a bimetallic strip. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le coupe-circuit thermique (8) et la résistance électrique en parallèle (9) sont logés dans un boítier étanche (10) solidaire de la cartouche (3).Device according to one of the preceding claims, characterized in that the thermal cut-out (8) and the electrical resistance in parallel (9) are housed in a sealed housing (10) integral with the cartridge (3). Dispositif selon la revendication 6, caractérisé en ce qu'il comprend un fusible (12) relié en série avec la résistance chauffante (5) et logé dans le boítier (10) du coupe-circuit thermique (8) et de la résistance électrique parallèle (9).Device according to claim 6, characterized in that it comprises a fuse (12) connected in series with the heating resistor (5) and housed in the housing (10) of the thermal circuit breaker (8) and of the parallel electrical resistance (9). Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est disposé dans un radiateur de chauffage à circulation d'eau, tel que par exemple un radiateur sèche-serviettes.Device according to one of the preceding claims, characterized in that it is arranged in a water circulation heating radiator, such as for example a towel radiator. Radiateur de chauffage à circulation d'eau, tel que par exemple un radiateur sèche-serviettes, caractérisé en ce qu'il est équipé d'un dispositif thermoplongeur tel que défini dans l'une quelconque des revendications 1 à 8.Heating radiator with water circulation, such as for example a towel radiator, characterized in that it is equipped with an immersion heater device as defined in any one of Claims 1 to 8.
EP01401278A 2000-05-17 2001-05-16 Immersion heating device that could be used particularly in a water circulating heating radiator Expired - Lifetime EP1156704B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0006296 2000-05-17
FR0006296A FR2809276B1 (en) 2000-05-17 2000-05-17 THERMOPLONGER FORMING DEVICE THAT CAN BE USED IN PARTICULAR IN A WATER CIRCULATION HEATER

Publications (2)

Publication Number Publication Date
EP1156704A1 true EP1156704A1 (en) 2001-11-21
EP1156704B1 EP1156704B1 (en) 2003-02-19

Family

ID=8850322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01401278A Expired - Lifetime EP1156704B1 (en) 2000-05-17 2001-05-16 Immersion heating device that could be used particularly in a water circulating heating radiator

Country Status (5)

Country Link
EP (1) EP1156704B1 (en)
AT (1) ATE233038T1 (en)
DE (1) DE60100107D1 (en)
ES (1) ES2193126T3 (en)
FR (1) FR2809276B1 (en)

Cited By (4)

* 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
EP1796433A1 (en) * 2005-12-07 2007-06-13 HT S.p.A. Electric resistance with low energy consumption PTC heating elements
EP2073602A3 (en) * 2007-12-20 2009-11-11 Robert Bosch GmbH Heating device with multifunctional protection agent
FR3075551A1 (en) * 2017-12-20 2019-06-21 Valeo Systemes Thermiques HEATING DEVICE, ELECTRIC CIRCUIT EQUIPPED WITH SUCH A DEVICE AND FLUID HEATER COMPRISING SUCH A CIRCUIT

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797534A (en) * 1987-06-08 1989-01-10 Gte Products Corporation PTC thermistor heating device
EP0949846A1 (en) * 1998-04-09 1999-10-13 Acova Immersion heater for use in radiators of a heating system with hot water circulation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797534A (en) * 1987-06-08 1989-01-10 Gte Products Corporation PTC thermistor heating device
EP0949846A1 (en) * 1998-04-09 1999-10-13 Acova Immersion heater for use in radiators of a heating system with hot water circulation

Cited By (4)

* 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
EP1796433A1 (en) * 2005-12-07 2007-06-13 HT S.p.A. Electric resistance with low energy consumption PTC heating elements
EP2073602A3 (en) * 2007-12-20 2009-11-11 Robert Bosch GmbH Heating device with multifunctional protection agent
FR3075551A1 (en) * 2017-12-20 2019-06-21 Valeo Systemes Thermiques HEATING DEVICE, ELECTRIC CIRCUIT EQUIPPED WITH SUCH A DEVICE AND FLUID HEATER COMPRISING SUCH A CIRCUIT

Also Published As

Publication number Publication date
DE60100107D1 (en) 2003-03-27
FR2809276B1 (en) 2002-07-19
EP1156704B1 (en) 2003-02-19
FR2809276A1 (en) 2001-11-23
ES2193126T3 (en) 2003-11-01
ATE233038T1 (en) 2003-03-15

Similar Documents

Publication Publication Date Title
FR2591023A1 (en) SUPERCONDUCTING COIL APPARATUS
EP0060172A1 (en) Protection device for a motor of a hermetically sealed motor-compressor unit
FR2647942A1 (en) TEMPERATURE-SENSITIVE CONTROL DEVICE FOR ADJUSTMENT DEVICE
EP0815786B1 (en) Electric fryer
EP1156704B1 (en) Immersion heating device that could be used particularly in a water circulating heating radiator
US5703998A (en) Hot water tank assembly
FR2590433A1 (en) Safety heating element intended to be used in particular in a heating cover
EP2742838B1 (en) Heating apparatus such as a towel-drying radiator
FR2493625A1 (en) PROTECTIVE CIRCUIT FOR ELECTRIC HEATING ACCESSORY, IN PARTICULAR HEATING COVER
EP0317435B1 (en) Insulated electrical heating element with a security device for detecting failure of the electrical insulation
FR2774186A1 (en) Thermostat with thermistor and relay switch for electric heating elements in domestic appliances
FR2894652A1 (en) Thermostatic regulation system for electric water heater, has fuse mounted in series with bimetallic thermostat and connected to rigid wire of power supply, where thermostat has output connected to rigid power supply lead of resistance
EP1065431A1 (en) Pressure control device for a cryogenic vessel and corresponding installation for supplying a fluid
FR2570808A1 (en) ELECTRIC WATER HEATER USING WATER AS A DIELECTRIC ENVIRONMENT
EP0819400B1 (en) Electric cooking apparatus
EP0749141B1 (en) Thermostat with probe having a SMA spring in its socket
FR3147853A1 (en) PORTABLE IMMERSION ELECTRIC WATER HEATER WITH DRY BOILING DETECTION
FR2898700A1 (en) "THERMOSTATIC CONTROL DEVICE OF ELECTRIC WATER HEATER"
JPH10321345A (en) Water tank heat reserving apparatus
EP3578902B1 (en) Water heater provided with a dry anti-heating safety system
FR2669102A1 (en) Device for heating and keeping heated for a container
EP0575264B1 (en) Liquid heater having an air temperature control device
JPH10262496A (en) Heater for glass tank
FR2553537A1 (en) IMPROVED DEVICE FOR REGULATING THE TEMPERATURE OF A FLUID CONTAINED IN AN ENCLOSURE
FR2675004A3 (en) STARTER FOR LOW PRESSURE DISCHARGE LAMPS POWERED BY AN ALTERNATING CURRENT.

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

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

17P Request for examination filed

Effective date: 20020118

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ZEHNDER GROUP SERVICES

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

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

Effective date: 20030219

Ref country code: GB

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: 20030219

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: 20030219

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: 20030219

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: 20030219

Ref country code: NL

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

Effective date: 20030219

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: 20030219

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: 60100107

Country of ref document: DE

Date of ref document: 20030327

Kind code of ref document: P

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

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: 20030516

Ref country code: LU

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

Effective date: 20030516

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

Effective date: 20030519

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: 20030519

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: 20030519

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

Effective date: 20030520

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: 20030531

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20030219

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 1156704E

Country of ref document: IE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2193126

Country of ref document: ES

Kind code of ref document: T3

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: 20031120

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: 20050531

Ref country code: LI

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

Effective date: 20050531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BECH Be: change of holder

Owner name: ZEHNDER GROUP PARTICIPATIONS

Effective date: 20071024

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

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

Ref country code: FR

Payment date: 20170511

Year of fee payment: 17

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

Ref country code: BE

Payment date: 20170519

Year of fee payment: 17

Ref country code: IT

Payment date: 20170525

Year of fee payment: 17

Ref country code: ES

Payment date: 20170626

Year of fee payment: 17

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180531

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

Ref country code: IT

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

Effective date: 20180516

Ref country code: FR

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

Effective date: 20180531

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: 20180531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20190913

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: 20180517