EP3578902A1 - Water heater provided with a dry anti-heating safety system - Google Patents

Water heater provided with a dry anti-heating safety system Download PDF

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Publication number
EP3578902A1
EP3578902A1 EP19305628.0A EP19305628A EP3578902A1 EP 3578902 A1 EP3578902 A1 EP 3578902A1 EP 19305628 A EP19305628 A EP 19305628A EP 3578902 A1 EP3578902 A1 EP 3578902A1
Authority
EP
European Patent Office
Prior art keywords
water
water heater
tank
heater according
heating
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
EP19305628.0A
Other languages
German (de)
French (fr)
Other versions
EP3578902B1 (en
Inventor
Pascal MONTGERMONT
Matthieu Collet
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.)
Atlantic Industrie SAS
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Atlantic Industrie SAS
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Publication date
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Publication of EP3578902A1 publication Critical patent/EP3578902A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/128—Preventing overheating
    • F24H15/132—Preventing the operation of water heaters with low water levels, e.g. dry-firing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/395—Information to users, e.g. alarms
    • 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

Definitions

  • the invention relates to a water heater with a dry anti-heat safety system.
  • a water heater contains a reservoir and a heating element for heating the water that is stored in said reservoir.
  • a heating element for heating the water that is stored in said reservoir.
  • no information is available from outside the water heater, to indicate that the tank is empty or no automatic system is blocking the operation. It is then possible to trigger a heating phase in the tank, while there is no water in it.
  • the consequences of such an event are that the heating element can deteriorate or even completely destroy or even damage the water heater more seriously.
  • a water heater according to the invention is provided with a dry anti-heat safety system to prevent the triggering of the heating element in the absence of water in the tank.
  • the invention relates to a water heater comprising a reservoir intended to contain water and a means for heating the water stored in said tank.
  • the water heater comprises a safety device capable of detecting the presence of water in the tank, and in that said device comprises an electric circuit provided with an energy source and a sensing element. the presence of water in the reservoir, the water present in the reservoir closing said circuit and activating said element.
  • the water present in the tank of the water heater allows to close, directly or indirectly, an electrical circuit comprising a detection element able to testify to the presence of water in said tank.
  • directly means that the water will be inserted into the electrical circuit to participate directly in the electrical flow thanks to its electrical conduction properties.
  • the expression “indirectly” means that the water will act, for example by gravity, on a component of the electrical circuit in order to close said circuit and allow electrical circulation therein.
  • the detection element of the circuit for detecting the presence of water in the tank may for example be constituted by a light or a sound device for the information of the user who can then proceed to a manual shutdown of the heater . It can also be constituted by a relay in connection with the heating element, and able to trigger or close the supply of the heating element to allow the heating of the water in the tank or not in the context of a automatic system.
  • the purpose of the safety device is to ensure the presence of water in the tank and to prevent the heating element from being activated dry, that is to say in the absence of water in the tank.
  • the electrical circuit used to detect the presence of water in the tank is compact and is located in contact with or in the immediate vicinity, preferably a few centimeters from the water tank. Since the water participates in the safety device, a lack of water in the tank inactivates said circuit.
  • the water is inserted into the electrical circuit and allows the passage of the current through its electrical conduction properties.
  • the term "inserts" means that the water will constitute an element of the electric circuit.
  • the water constitutes a conduction element of the electric current and is an integral part of the electrical circuit.
  • the circuit comprises a contactor, the water present in the tank activating said contactor by gravity.
  • the water will act by gravity on a contactor, which is an integral part of the electrical circuit, to close said electrical circuit.
  • the detection element is a warning element detectable from outside said water heater.
  • this warning element is triggered as soon as the heating element is activated and makes it possible to immediately ascertain the presence or absence of water in the reservoir.
  • the detection element is a light source.
  • This light source can be of any kind and may for example be constituted by a light indicator.
  • the detection element is a sound source.
  • the detection element drives a relay for supplying the heating means.
  • the heating element when one seeks to activate the heating element to heat water that would be present inside the tank, or nothing happens because there is no water in said tank, ie the heating element reacts by raising the temperature of the water present in the tank.
  • the heating means is a heating resistor.
  • a water heater according to the invention comprises an inner tube emerging towards the outside of the tank, the safety device being placed along said tube (3) outside the tank.
  • the tube is an inner tube to the tank for detecting a complete filling of said water tank, the safety device being for example placed under the tank at an outlet of said inner tube.
  • the emerging portion of the tube outside the reservoir may be straight, or comprise a plurality of rectilinear segments between them angles.
  • the dry anti-heat safety device is inserted into a support to be chosen from a sleeve or a dielectric connection.
  • a support makes it possible to isolate the electrical circuit from the outside, and thus to protect it from any external event which would be likely to degrade or damage it, protecting the user from an electrical contact.
  • a sleeve or such a dielectric connection is already present on existing water heaters.
  • a water heater according to the invention has the advantage of having a dry anti-heat safety device through the implementation of an electrical circuit, which is safe and reliable, while being compact. Indeed, the sources of error at said safety device are almost non-existent, and the heating element can be activated only in the presence of water in the tank. It also has the advantage of having a dry anti-heat safety device directly involving the water of the tank, greatly reducing the risk of activation of the heating element in the absence of water in the tank.
  • the FIGS. 1A, 1B and 1C describe a normal use of a water heater 1.
  • the water heater 1 schematically comprises a tank 2, an inner tube 3, a cold water inlet 4, a heating means 5, a dielectric connection or a standard sleeve 6 comprising the dry anti-heat safety system, and a hot water outlet 7.
  • the tank 2 is elongated and preferably extends in a vertical direction.
  • the cold water inlet 4 opens at a lower wall 10 of said tank 2.
  • the inner tube 3 has a diameter which is much smaller than the dimensions of the tank 2, and has a main segment 11 lower which is extended by a secondary segment 12 inclined upper.
  • the main segment 11 has a lower end passing through the bottom wall 10 of the tank 2 and which opens into the dielectric connection or the sleeve 6 placed under the tank 2, said main segment 11 having an upper end, extended by the secondary segment 12.
  • the hot water outlet 7 is located at the dielectric connector or the sleeve 6.
  • the tank 2 is supplied with cold water by the inlet 4 with cold water, until it is completely filled, as shown in FIG. Figure 1A .
  • the heating means 5 which may advantageously be represented by a heating resistor, is activated in order to heat the water present in the tank 2.
  • the water has a cold zone 8 and a hot zone 9 as shown in FIG. Figure 1B .
  • the hot water outlet 7 can then be opened according to the hot water supply needs of various equipment outside the water heater 1, such as the equipment of a kitchen or a bathroom.
  • a problem often encountered with this type of water heater 1 is that the tank 2 can be empty, at startup, following a deliberate emptying or leak, or for any other reason, and that it can There is no simple way to know the state of the tank 2, empty or full.
  • the heating means 5 can then be activated when there is no more water in the tank 2, with consequent deterioration of the water heater 1 or its heating means 5.
  • a water heater 1 is provided with a dry anti-heat safety device enabling the presence of water in the tank 2 to be detected.
  • dry anti-heat safety device is advantageously housed in the dielectric connector or the sleeve 6, placed under the tank 2 of the water heater 1.
  • a first preferred embodiment of a dry heating safety device 20 of a water heater 1 is manual and comprises an electric circuit 21 provided with a power source 22 for electric current that may preferentially be a battery, a warning light 23 and two separate terminals 24, 25, placing the circuit by default 21 in an open configuration.
  • the term "separated” means that there is no electrical connection between said two terminals 24, 25.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, at the two terminals 24, 25 separate from the electrical circuit 21
  • the term “manual” means that the user realizing that there is no water in the tank 2 will not trigger the heating element 5.
  • the indicator light 23 could be replaced by an audible warning means informing a user that the tank is filled with water.
  • the electrical circuit 21 of the safety device is open and no electric current flows in it.
  • the indicator light 23 indicates that there is no water in the tank 2 of the water heater 1. The user will be notified of the absence of water.
  • a second preferred embodiment of a safety device 30 of a water heater 1 is automatic and comprises an electric circuit 31 provided with a power source 32 electric current may preferentially be a battery, a relay 33 which is connected to the heating means 5, and two terminals 34, 35 separated, by default placing the electric circuit 31 in an open configuration.
  • the term "separated" means that there is no electrical connection between said two terminals 34, 35.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, at the two terminals 34, 35 separate from the electrical circuit 31 .
  • the electric circuit 31 of the safety device is open and no electric current flows in it.
  • the relay 33 remains inactive, and the heating means 5 can not be triggered.
  • a third preferred embodiment of a dry heat-resistant security device 40 of a water heater 1 is manual and comprises an electric circuit 41 having a power source 42 for electric current it may preferentially be a battery, a warning light 43 and a mobile electric contactor 44.
  • the electric switch 44 is disjoint from the electrical circuit 41, placing said electric circuit 41 in an open configuration.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, being separated from the electrical circuit 41 by the contactor 44.
  • term “manual" means that the user realizing that there is no water in the tank 2 will not trigger the heating element 5.
  • the light bright 43 could also be replaced by an audible warning means, informing a user that the tank is filled with water.
  • the electrical circuit 41 of the safety device is open and no electric current flows in it.
  • the indicator light 43 indicates that there is no water in the tank 2 of the water heater 1. The user will be notified of the absence of water.
  • a fourth preferred embodiment of a safety device 50 of a water heater 1 is automatic and comprises an electric circuit 51 provided with a power source 52 for electric current that may preferentially be a battery , a relay 53 which is connected to the heating means 5, and a movable electric switch 54.
  • the electric switch 54 is disjoint from the electric circuit 51, placing said electric circuit 51 in an open configuration.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, being separated from the electric circuit 51 by the contactor 54.
  • the electrical circuit 51 of the safety device is open and no electric current flows in it.
  • the relay 53 remains inactive, and the heating means 5 can not be triggered.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Control Of Resistance Heating (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

L'invention se rapporte à un chauffe-eau (1) comprenant un réservoir (2) destiné à contenir de l'eau et un moyen de chauffage (5) de l'eau stockée dans ledit réservoir (2).Selon l'invention, le chauffe-eau (1) comprend un dispositif de sécurité (20, 30) apte à détecter la présence d'eau dans le réservoir (2), ledit dispositif (20, 30) comportant un circuit électrique (21, 31) doté d'une source énergétique (22, 32) et d'un élément de détection (23, 33) de la présence d'eau dans le réservoir (2), l'eau présente dans le réservoir (2) fermant électriquement ledit circuit (21, 31) et activant ledit élément de détection (23, 33).The invention relates to a water heater (1) comprising a tank (2) intended to contain water and a means (5) for heating the water stored in said tank (2). , the water heater (1) comprises a safety device (20, 30) capable of detecting the presence of water in the tank (2), said device (20, 30) comprising an electrical circuit (21, 31) provided an energy source (22, 32) and a detection element (23, 33) of the presence of water in the tank (2), the water present in the tank (2) electrically closing said circuit ( 21, 31) and activating said detection element (23, 33).

Description

L'invention se rapporte à un chauffe-eau doté d'un système de sécurité anti-chauffe à sec.The invention relates to a water heater with a dry anti-heat safety system.

Généralement, un chauffe-eau contient un réservoir et un élément de chauffage destiné à chauffer l'eau qui est stockée dans ledit réservoir. Pour diverses raisons, il peut arriver qu'il n'y ait plus d'eau dans ledit réservoir, comme par exemple, à la mise en service, après une vidange ou lors d'une fuite. Dans cette situation, aucune information n'est disponible de l'extérieur du chauffe-eau, pour indiquer que le réservoir est vide ou aucun système automatique bloque le fonctionnement. Il est alors possible de déclencher une phase de chauffage dans le réservoir, alors qu'il n'y a pas d'eau dans celui-ci. Les conséquences d'un tel événement sont que l'élément de chauffage peut se détériorer voire se détruire complètement voire endommager le chauffe-eau plus gravement.Generally, a water heater contains a reservoir and a heating element for heating the water that is stored in said reservoir. For various reasons, it may happen that there is more water in said tank, such as, for example, at commissioning, after a drain or during a leak. In this situation, no information is available from outside the water heater, to indicate that the tank is empty or no automatic system is blocking the operation. It is then possible to trigger a heating phase in the tank, while there is no water in it. The consequences of such an event are that the heating element can deteriorate or even completely destroy or even damage the water heater more seriously.

Actuellement, les principales solutions mises en oeuvre pour éviter une dégradation de l'élément de chauffage dans de telles circonstances, sont les suivantes :

  • Déclenchement d'un fusible ou d'un coupe-circuit thermique de sécurité,
  • Mesure de l'absence de courant entre une anode et une cathode,
  • Mise en oeuvre d'un détecteur de débit d'eau.
Currently, the main solutions implemented to prevent degradation of the heating element under such circumstances are the following:
  • Triggering a fuse or a safety thermal cut-out,
  • Measurement of the absence of current between anode and a cathode,
  • Implementation of a water flow detector.

Or, ces solutions présentent un certain nombre d'inconvénients, parmi lesquels :

  • Surcoûts importants,
  • Fonctionnement qui n'est pas adaptable à tous les types d'élément chauffant,
  • Résultats aléatoires pour certaines solutions.
However, these solutions have a number of disadvantages, among which:
  • Significant additional costs,
  • Operation that is not adaptable to all types of heating element,
  • Random results for some solutions.

Un chauffe-eau selon l'invention est doté d'un système de sécurité anti-chauffe à sec permettant d'empêcher le déclenchement de l'élément de chauffage en l'absence d'eau dans le réservoir.A water heater according to the invention is provided with a dry anti-heat safety system to prevent the triggering of the heating element in the absence of water in the tank.

L'invention se rapporte à un chauffe-eau comprenant un réservoir destiné à contenir de l'eau et un moyen de chauffage de l'eau stockée dans ledit réservoir.The invention relates to a water heater comprising a reservoir intended to contain water and a means for heating the water stored in said tank.

Selon l'invention, le chauffe-eau comprend un dispositif de sécurité apte à détecter la présence d'eau dans le réservoir, et en ce que ledit dispositif comporte un circuit électrique doté d'une source énergétique et d'un élément de détection de la présence d'eau dans le réservoir, l'eau présente dans le réservoir fermant ledit circuit et activant ledit élément. De cette manière, l'eau présente dans le réservoir du chauffe-eau permet de fermer, de façon directe ou indirecte, un circuit électrique comportant un élément de détection apte à témoigner de la présence d'eau dans ledit réservoir. L'expression « de façon directe » signifie que l'eau va s'insérer dans le circuit électrique pour participer directement à la circulation électrique grâce à ses propriétés de conduction électrique. L'expression « de façon indirecte » signifie que l'eau va agir, par exemple par gravité, sur un composant du circuit électrique afin de fermer ledit circuit et permettre la circulation électrique dans celui-ci. L'élément de détection du circuit permettant de détecter la présence d'eau dans le réservoir, peut par exemple être constitué par un voyant lumineux ou un dispositif sonore pour l'information de l'utilisateur qui peut alors procéder à un arrêt manuel du chauffage. Il peut également être constitué par un relais en connexion avec l'élément de chauffage, et apte à déclencher ou fermer l'alimentation de l'élément chauffant pour permettre le chauffage de l'eau dans le réservoir ou non dans le cadre d'un système automatique. Le dispositif de sécurité a pour but de s'assurer de la présence de l'eau dans le réservoir et d'éviter que l'élément de chauffage ne soit activé à sec, c'est-à-dire en l'absence d'eau dans le réservoir. Préférentiellement le circuit électrique mis en oeuvre pour détecter la présence d'eau dans le réservoir, est peu encombrant et est situé au contact ou à proximité immédiate, de préférence quelques centimètres du réservoir d'eau. Puisque l'eau participe au dispositif de sécurité, une absence d'eau dans le réservoir inactive ledit circuit.According to the invention, the water heater comprises a safety device capable of detecting the presence of water in the tank, and in that said device comprises an electric circuit provided with an energy source and a sensing element. the presence of water in the reservoir, the water present in the reservoir closing said circuit and activating said element. In this way, the water present in the tank of the water heater allows to close, directly or indirectly, an electrical circuit comprising a detection element able to testify to the presence of water in said tank. The expression "directly" means that the water will be inserted into the electrical circuit to participate directly in the electrical flow thanks to its electrical conduction properties. The expression "indirectly" means that the water will act, for example by gravity, on a component of the electrical circuit in order to close said circuit and allow electrical circulation therein. The detection element of the circuit for detecting the presence of water in the tank, may for example be constituted by a light or a sound device for the information of the user who can then proceed to a manual shutdown of the heater . It can also be constituted by a relay in connection with the heating element, and able to trigger or close the supply of the heating element to allow the heating of the water in the tank or not in the context of a automatic system. The purpose of the safety device is to ensure the presence of water in the tank and to prevent the heating element from being activated dry, that is to say in the absence of water in the tank. Preferably the electrical circuit used to detect the presence of water in the tank, is compact and is located in contact with or in the immediate vicinity, preferably a few centimeters from the water tank. Since the water participates in the safety device, a lack of water in the tank inactivates said circuit.

Selon un mode de réalisation préféré d'un chauffe-eau selon l'invention, l'eau s'insère dans le circuit électrique et permet le passage du courant grâce à ses propriétés de conduction électrique. Le terme « s'insère » signifie que l'eau va constituer un élément du circuit électrique. Pour cette configuration, l'eau constitue un élément de conduction du courant électrique et fait partie intégrante du circuit électrique.According to a preferred embodiment of a water heater according to the invention, the water is inserted into the electrical circuit and allows the passage of the current through its electrical conduction properties. The term "inserts" means that the water will constitute an element of the electric circuit. For this configuration, the water constitutes a conduction element of the electric current and is an integral part of the electrical circuit.

Selon un autre mode de réalisation préféré d'un chauffe-eau selon l'invention, le circuit comprend un contacteur, l'eau présente dans le réservoir activant ledit contacteur par gravité. Pour cette configuration, l'eau va agir par gravité sur un contacteur, qui fait partie intégrante du circuit électrique, afin de fermer ledit circuit électrique.According to another preferred embodiment of a water heater according to the invention, the circuit comprises a contactor, the water present in the tank activating said contactor by gravity. For this configuration, the water will act by gravity on a contactor, which is an integral part of the electrical circuit, to close said electrical circuit.

Avantageusement, l'élément de détection est un élément d'avertissement détectable depuis l'extérieur dudit chauffe-eau. De façon préférentielle, cet élément d'avertissement est déclenché dès que l'élément de chauffage est activé et permet de s'assurer immédiatement de la présence ou non d'eau dans le réservoirAdvantageously, the detection element is a warning element detectable from outside said water heater. Preferably, this warning element is triggered as soon as the heating element is activated and makes it possible to immediately ascertain the presence or absence of water in the reservoir.

De façon préférentielle, l'élément de détection est une source lumineuse. Cette source lumineuse peut être de toute nature et peut par exemple être constitué par un voyant lumineux.Preferably, the detection element is a light source. This light source can be of any kind and may for example be constituted by a light indicator.

Selon un autre mode de réalisation préféré d'un chauffe-eau selon l'invention, l'élément de détection est une source sonore.According to another preferred embodiment of a water heater according to the invention, the detection element is a sound source.

De façon avantageuse, l'élément de détection pilote un relais permettant d'alimenter le moyen de chauffage. Pour cette configuration, lorsque l'on cherche à activer l'élément de chauffage pour chauffer de l'eau qui serait présente à l'intérieur du réservoir, soit il ne se passe rien car il n'y a pas d'eau dans ledit réservoir, soit l'élément de chauffage réagit en faisant monter la température de l'eau présente dans le réservoir.Advantageously, the detection element drives a relay for supplying the heating means. For this configuration, when one seeks to activate the heating element to heat water that would be present inside the tank, or nothing happens because there is no water in said tank, ie the heating element reacts by raising the temperature of the water present in the tank.

Avantageusement, le moyen de chauffage est une résistance chauffante.Advantageously, the heating means is a heating resistor.

De façon préférentielle, un chauffe-eau selon l'invention comprend un tube interne émergeant vers l'extérieur du réservoir, le dispositif de sécurité étant placé le long dudit tube (3) à l'extérieur du réservoir. De cette manière, un tel tube permet d'acheminer l'eau présente dans le réservoir vers le dispositif de sécurité. C'est l'eau présente dans le tube qui va interagir avec le dispositif de sécurité. De façon avantageuse, le tube est un tube interne au réservoir permettant de détecter un remplissage complet dudit réservoir en eau, le dispositif de sécurité étant par exemple placé sous le réservoir au niveau d'une sortie dudit tube interne. La partie émergeante du tube à l'extérieur du réservoir peut être rectiligne, ou comprendre une pluralité de segments rectilignes faisant entre eux des angles.Preferably, a water heater according to the invention comprises an inner tube emerging towards the outside of the tank, the safety device being placed along said tube (3) outside the tank. In this way, such a tube makes it possible to convey the water present in the reservoir towards the safety device. It is the water in the tube that will interact with the safety device. Advantageously, the tube is an inner tube to the tank for detecting a complete filling of said water tank, the safety device being for example placed under the tank at an outlet of said inner tube. The emerging portion of the tube outside the reservoir may be straight, or comprise a plurality of rectilinear segments between them angles.

Préférentiellement, le dispositif de sécurité anti-chauffe à sec est inséré dans un support à choisir parmi un manchon ou un raccord diélectrique. Un tel support permet d'isoler le circuit électrique de l'extérieur, et donc de le protéger de tout événement externe qui serait susceptible de le dégrader ou de l'endommager, en protégeant l'utilisateur d'un contact électrique. Généralement un tel manchon ou un tel raccord diélectrique est déjà présent sur les chauffe-eaux déjà existants.Preferably, the dry anti-heat safety device is inserted into a support to be chosen from a sleeve or a dielectric connection. Such a support makes it possible to isolate the electrical circuit from the outside, and thus to protect it from any external event which would be likely to degrade or damage it, protecting the user from an electrical contact. Generally such a sleeve or such a dielectric connection is already present on existing water heaters.

Un chauffe-eau selon l'invention présente l'avantage de posséder un dispositif de sécurité anti-chauffe à sec grâce à la mise en oeuvre d'un circuit électrique, qui est sûr et fiable, tout en étant peu encombrant. En effet, les sources d'erreur au niveau dudit dispositif de sécurité sont quasi-inexistantes, et l'élément de chauffage ne pourra être activé qu'en la présence d'eau dans le réservoir. Il a de plus l'avantage de posséder un dispositif de sécurité anti-chauffe à sec impliquant directement l'eau du réservoir, diminuant grandement les risques d'activation de l'élément de chauffage en l'absence d'eau dans le réservoir.A water heater according to the invention has the advantage of having a dry anti-heat safety device through the implementation of an electrical circuit, which is safe and reliable, while being compact. Indeed, the sources of error at said safety device are almost non-existent, and the heating element can be activated only in the presence of water in the tank. It also has the advantage of having a dry anti-heat safety device directly involving the water of the tank, greatly reducing the risk of activation of the heating element in the absence of water in the tank.

On donne ci-après une description détaillée d'un mode de réalisation préféré d'un chauffe-eau selon l'invention, en se référant aux figures suivantes :

  • Les figures 1A, 1B et 1C sont trois vues de côté d'un chauffe-eau selon l'invention, respectivement avant le chauffage de l'eau, en cours d'utilisation et en fin de chauffage de l'eau,
  • Les figures 2A et 2B sont deux vues schématiques d'un premier mode de réalisation préféré d'un circuit de sécurité anti-chauffe à sec d'un chauffe-eau selon l'invention, respectivement en l'absence et en présence d'eau (système manuel),
  • Les figures 3A et 3B sont deux vues schématiques d'un deuxième mode de réalisation préféré d'un circuit de sécurité anti-chauffe à sec d'un chauffe-eau selon l'invention, respectivement en l'absence et en présence d'eau (système automatique),
  • Les figures 4A et 4B sont deux vues schématiques d'un troisième mode de réalisation préféré d'un circuit de sécurité anti-chauffe à sec d'un chauffe-eau selon l'invention impliquant un contacteur, respectivement en l'absence et en présence d'eau (système manuel),
  • Les figures 5A et 5B sont deux vues schématiques d'un quatrième mode de réalisation préféré d'un circuit de sécurité anti-chauffe à sec d'un chauffe-eau selon l'invention impliquant un contacteur, respectivement en l'absence et en présence d'eau (système automatique),
The following is a detailed description of a preferred embodiment of a water heater according to the invention, with reference to the following figures:
  • The FIGS. 1A, 1B and 1C are three side views of a water heater according to the invention, respectively before heating the water, in use and at the end of heating water,
  • The Figures 2A and 2B are two diagrammatic views of a first preferred embodiment of a dry anti-heating safety circuit of a water heater according to the invention, respectively in the absence and in the presence of water (manual system),
  • The Figures 3A and 3B are two diagrammatic views of a second preferred embodiment of a dry anti-heating safety circuit of a water heater according to the invention, respectively in the absence and in the presence of water (automatic system),
  • The Figures 4A and 4B are two diagrammatic views of a third preferred embodiment of a dry anti-heating safety circuit of a water heater according to the invention involving a contactor, respectively in the absence and in the presence of water (system manual),
  • The Figures 5A and 5B are two diagrammatic views of a fourth preferred embodiment of a dry anti-heating safety circuit of a water heater according to the invention involving a contactor, respectively in the absence and in the presence of water (system automatic),

Les figures 1A, 1B et 1C décrivent un usage normal d'un chauffe-eau 1. En se référant à ces figures, le chauffe-eau 1 comprend schématiquement un réservoir 2, un tube interne 3, une arrivée 4 d'eau froide, un moyen de chauffage 5, un raccord diélectrique ou un manchon standard 6 comportant le système de sécurité anti-chauffe à sec, et une sortie d'eau chaude 7. Le réservoir 2 est allongé et s'étend préférentiellement selon une direction verticale. L'arrivée d'eau froide 4 débouche au niveau d'une paroi inférieure 10 dudit réservoir 2. Le tube interne 3 présente un diamètre qui est largement inférieur aux dimensions du réservoir 2, et possède un segment principal 11 inférieur qui est prolongé par un segment secondaire 12 supérieur incliné. Le segment principal 11 possède une extrémité inférieure traversant la paroi inférieure 10 du réservoir 2 et qui débouche dans le raccord diélectrique ou le manchon 6 placé sous le réservoir 2, ledit segment principal 11 possédant une extrémité supérieure, prolongée par le segment secondaire 12. La sortie d'eau chaude 7 est située au niveau du raccord diélectrique ou du manchon 6. Le réservoir 2 est alimenté en eau froide par l'arrivée 4 d'eau froide, jusqu'à être complètement rempli, comme le montre la figure 1A. Une fois que le réservoir 2 est plein, le moyen de chauffage 5, qui peut avantageusement être représenté par une résistance chauffante, est activé afin de chauffer l'eau présente dans le réservoir 2. En cours d'usage, l'eau présente une zone froide 8 et une zone chaude 9 comme le montre la figure 1B. Lorsque le chauffage se poursuit suffisamment longtemps, l'eau présente dans le réservoir 2 est uniformément chaude, comme l'illustre la figure 1C. La sortie d'eau chaude 7 peut alors être ouverte en fonction des besoins d'alimentation en eau chaude de différents équipements extérieurs au chauffe-eau 1, comme par exemple les équipements d'une cuisine ou d'une salle de bain.The FIGS. 1A, 1B and 1C describe a normal use of a water heater 1. Referring to these figures, the water heater 1 schematically comprises a tank 2, an inner tube 3, a cold water inlet 4, a heating means 5, a dielectric connection or a standard sleeve 6 comprising the dry anti-heat safety system, and a hot water outlet 7. The tank 2 is elongated and preferably extends in a vertical direction. The cold water inlet 4 opens at a lower wall 10 of said tank 2. The inner tube 3 has a diameter which is much smaller than the dimensions of the tank 2, and has a main segment 11 lower which is extended by a secondary segment 12 inclined upper. The main segment 11 has a lower end passing through the bottom wall 10 of the tank 2 and which opens into the dielectric connection or the sleeve 6 placed under the tank 2, said main segment 11 having an upper end, extended by the secondary segment 12. The hot water outlet 7 is located at the dielectric connector or the sleeve 6. The tank 2 is supplied with cold water by the inlet 4 with cold water, until it is completely filled, as shown in FIG. Figure 1A . Once the tank 2 is full, the heating means 5, which may advantageously be represented by a heating resistor, is activated in order to heat the water present in the tank 2. In use, the water has a cold zone 8 and a hot zone 9 as shown in FIG. Figure 1B . When the heating continues long enough, the water present in the tank 2 is uniformly hot, as shown in FIG. figure 1C . The hot water outlet 7 can then be opened according to the hot water supply needs of various equipment outside the water heater 1, such as the equipment of a kitchen or a bathroom.

Un problème souvent rencontré avec ce type de chauffe-eau 1, est que le réservoir 2 peut se retrouver vide, à la mise en route, suite à une vidange délibérée ou à une fuite, ou pour toute autre raison, et qu'il n'existe aucun moyen simple permettant de connaitre l'état du réservoir 2, vide ou plein. Le moyen de chauffage 5 peut alors être activé alors qu'il n'y a plus d'eau dans le réservoir 2, avec pour conséquence une détérioration du chauffe-eau 1 ou de son moyen de chauffage 5.A problem often encountered with this type of water heater 1 is that the tank 2 can be empty, at startup, following a deliberate emptying or leak, or for any other reason, and that it can There is no simple way to know the state of the tank 2, empty or full. The heating means 5 can then be activated when there is no more water in the tank 2, with consequent deterioration of the water heater 1 or its heating means 5.

Afin d'éviter qu'une telle situation ne se produise, un chauffe-eau 1 selon l'invention est doté d'un dispositif de sécurité anti-chauffe à sec permettant de détecter la présence d'eau dans le réservoir 2. Un tel dispositif de sécurité anti-chauffe à sec est avantageusement logé dans le raccord diélectrique ou le manchon 6, placé sous le réservoir 2 du chauffe-eau 1.In order to prevent such a situation from occurring, a water heater 1 according to the invention is provided with a dry anti-heat safety device enabling the presence of water in the tank 2 to be detected. dry anti-heat safety device is advantageously housed in the dielectric connector or the sleeve 6, placed under the tank 2 of the water heater 1.

En se référant aux figures 2A et 2B, un premier mode de réalisation préféré d'un dispositif de sécurité 20 anti-chauffe à sec d'un chauffe-eau 1 selon l'invention est manuel et comprend un circuit électrique 21 doté d'une source d'alimentation 22 en courant électrique pouvant préférentiellement être une batterie, un voyant lumineux 23 d'avertissement et deux bornes 24, 25 séparées, plaçant par défaut le circuit électrique 21 dans une configuration ouverte. Le terme « séparée » signifie qu'il n'existe aucune liaison électrique entre lesdites deux bornes 24, 25. Le tube interne 3 débouche dans le raccord diélectrique ou le manchon 6, au niveau des deux bornes 24, 25 séparées du circuit électrique 21. Le terme « manuel » signifie que l'usager se rendant compte qu'il n'y a pas d'eau dans le réservoir 2 ne déclenchera pas l'élément de chauffage 5. Il est à préciser que le voyant lumineux 23 pourrait être remplacé par un moyen d'avertissement sonore, informant un utilisateur que le réservoir est rempli d'eau.Referring to Figures 2A and 2B , a first preferred embodiment of a dry heating safety device 20 of a water heater 1 according to the invention is manual and comprises an electric circuit 21 provided with a power source 22 for electric current that may preferentially be a battery, a warning light 23 and two separate terminals 24, 25, placing the circuit by default 21 in an open configuration. The term "separated" means that there is no electrical connection between said two terminals 24, 25. The inner tube 3 opens into the dielectric connection or the sleeve 6, at the two terminals 24, 25 separate from the electrical circuit 21 The term "manual" means that the user realizing that there is no water in the tank 2 will not trigger the heating element 5. It should be noted that the indicator light 23 could be replaced by an audible warning means informing a user that the tank is filled with water.

Ainsi, en se référant à la figure 2A, en l'absence d'eau dans le tube interne 3, le circuit électrique 21 du dispositif de sécurité est ouvert et aucun courant électrique ne circule dans celui-ci. Le voyant lumineux 23 indique qu'il n'y a pas d'eau dans le réservoir 2 du chauffe-eau 1. L'usager sera averti de l'absence d'eau.So, referring to the Figure 2A in the absence of water in the inner tube 3, the electrical circuit 21 of the safety device is open and no electric current flows in it. The indicator light 23 indicates that there is no water in the tank 2 of the water heater 1. The user will be notified of the absence of water.

A l'inverse, en se référant à la figure 2B, si de l'eau est présente dans le tube interne 3, elle va se placer entre les deux bornes 24, 25 séparées du circuit électrique 21, qui vont alors être immergées dans ladite eau. Puisque l'eau possède des propriétés de conduction électrique, elle va alors relier électriquement les deux bornes 24, 25 dudit circuit électrique 21, qui va donc se retrouver dans une configuration fermée. La source d'alimentation électrique 22 est alors en capacité d'alimenter en courant électrique le voyant lumineux 23 qui va instantanément s'éclairer, témoignant ainsi de la présence d'eau dans le réservoir 2 du chauffe-eau 1. Le moyen de chauffage 5 peut alors être activé en connaissance de cause, afin de chauffer l'eau présente dans ledit chauffe-eau 1.Conversely, referring to the Figure 2B if water is present in the inner tube 3, it will be placed between the two terminals 24, 25 separated from the electrical circuit 21, which will then be immersed in said water. Since the water has electrical conduction properties, it will then electrically connect the two terminals 24, 25 of said electric circuit 21, which will therefore be in a closed configuration. The power source 22 is then able to supply electrical power to the indicator light 23 which will instantly light up, thereby indicating the presence of water in the tank 2 of the water heater 1. The heating means 5 can then be activated knowingly, in order to heat the water present in said water heater 1.

En se référant aux figures 3A et 3B, un deuxième mode de réalisation préféré d'un dispositif de sécurité 30 d'un chauffe-eau 1 selon l'invention est automatique et comprend un circuit électrique 31 doté d'une source d'alimentation 32 en courant électrique pouvant préférentiellement être une batterie, un relais 33 qui est relié au moyen de chauffage 5, et deux bornes 34, 35 séparées, plaçant par défaut le circuit électrique 31 dans une configuration ouverte. Le terme « séparée » signifie qu'il n'existe aucune liaison électrique entre lesdites deux bornes 34, 35. Le tube interne 3 débouche dans le raccord diélectrique ou le manchon 6, au niveau des deux bornes 34, 35 séparées du circuit électrique 31.Referring to Figures 3A and 3B a second preferred embodiment of a safety device 30 of a water heater 1 according to the invention is automatic and comprises an electric circuit 31 provided with a power source 32 electric current may preferentially be a battery, a relay 33 which is connected to the heating means 5, and two terminals 34, 35 separated, by default placing the electric circuit 31 in an open configuration. The term "separated" means that there is no electrical connection between said two terminals 34, 35. The inner tube 3 opens into the dielectric connection or the sleeve 6, at the two terminals 34, 35 separate from the electrical circuit 31 .

Ainsi, en se référant à la figure 3A, en l'absence d'eau dans le tube interne 3, le circuit électrique 31 du dispositif de sécurité est ouvert et aucun courant électrique ne circule dans celui-ci. Le relais 33 reste inactif, et le moyen de chauffage 5 ne peut pas être déclenché.So, referring to the figure 3A in the absence of water in the inner tube 3, the electric circuit 31 of the safety device is open and no electric current flows in it. The relay 33 remains inactive, and the heating means 5 can not be triggered.

A l'inverse, en se référant à la figure 3B, si de l'eau est présente dans le tube interne 3, elle va se placer entre les deux bornes 34, 35 séparées du circuit électrique 31, qui vont alors être immergées dans ladite eau. Puisque l'eau possède des propriétés de conduction électrique, elle va alors relier électriquement les deux bornes 34, 35 dudit circuit électrique 21, qui va donc se retrouver dans une configuration fermée. La source d'alimentation électrique 32 est alors en capacité d'alimenter en courant électrique le relais 33, qui va instantanément déclencher le moyen de chauffage 5 pour faire monter en température l'eau présente dans le réservoir 2 du chauffe-eau 1. Le fait que le moyen de chauffage 5 puisse être activé, témoigne de la présence d'eau dans le réservoir 2 du chauffe-eau 1.Conversely, referring to the figure 3B if water is present in the inner tube 3, it will be placed between the two terminals 34, 35 separated from the electric circuit 31, which will then be immersed in said water. Since the water has electrical conduction properties, it will then electrically connect the two terminals 34, 35 of said electric circuit 21, which will therefore be in a closed configuration. The power source 32 is then able to supply electrical power to the relay 33, which will instantly trigger the heating means 5 to raise the temperature of the water present in the tank 2 of the water heater 1. that the heating means 5 can be activated, testifies to the presence of water in the tank 2 of the water heater 1.

En se référant aux figures 4A et 4B, un troisième mode de réalisation préféré d'un dispositif de sécurité 40 anti-chauffe à sec d'un chauffe-eau 1 selon l'invention est manuel et comprend un circuit électrique 41 doté d'une source d'alimentation 42 en courant électrique pouvant préférentiellement être une batterie, un voyant lumineux 43 d'avertissement et un contacteur 44 électrique mobile. Par défaut, le contacteur électrique 44 est disjoint du circuit électrique 41, plaçant ledit circuit électrique 41 dans une configuration ouverte. Le tube interne 3 débouche dans le raccord diélectrique ou le manchon 6, en étant séparé du circuit électrique 41 par le contacteur 44. Le terme « manuel » signifie que l'usager se rendant compte qu'il n'y a pas d'eau dans le réservoir 2 ne déclenchera pas l'élément de chauffage 5. Pour ce mode de réalisation, il est à préciser que le voyant lumineux 43 pourrait également être remplacé par un moyen d'avertissement sonore, informant un utilisateur que le réservoir est rempli d'eau.Referring to Figures 4A and 4B a third preferred embodiment of a dry heat-resistant security device 40 of a water heater 1 according to the invention is manual and comprises an electric circuit 41 having a power source 42 for electric current it may preferentially be a battery, a warning light 43 and a mobile electric contactor 44. By default, the electric switch 44 is disjoint from the electrical circuit 41, placing said electric circuit 41 in an open configuration. The inner tube 3 opens into the dielectric connection or the sleeve 6, being separated from the electrical circuit 41 by the contactor 44. term "manual" means that the user realizing that there is no water in the tank 2 will not trigger the heating element 5. For this embodiment, it should be noted that the light bright 43 could also be replaced by an audible warning means, informing a user that the tank is filled with water.

Ainsi, en se référant à la figure 4A, en l'absence d'eau dans le tube interne 3, le circuit électrique 41 du dispositif de sécurité est ouvert et aucun courant électrique ne circule dans celui-ci. Le voyant lumineux 43 indique qu'il n'y a pas d'eau dans le réservoir 2 du chauffe-eau 1. L'usager sera averti de l'absence d'eau.So, referring to the Figure 4A in the absence of water in the inner tube 3, the electrical circuit 41 of the safety device is open and no electric current flows in it. The indicator light 43 indicates that there is no water in the tank 2 of the water heater 1. The user will be notified of the absence of water.

A l'inverse, en se référant à la figure 4B, si de l'eau est présente dans le tube interne 3, elle va alors déplacer le contacteur électrique 44 par gravité comme l'indiquent les flèches 45, jusqu'à ce que ledit contacteur 44 ferme le circuit électrique 41. La source d'alimentation électrique 42 est alors en capacité d'alimenter en courant électrique le voyant lumineux 43 qui va instantanément s'éclairer, témoignant ainsi de la présence d'eau dans le réservoir 2 du chauffe-eau 1. Le moyen de chauffage 5 peut alors être activé en connaissance de cause, afin de chauffer l'eau présente dans ledit chauffe-eau 1. Le contacteur électrique 44 est une pièce apte à conduire le courant électrique et est préférentiellement réalisée en métal.Conversely, referring to the Figure 4B if water is present in the inner tube 3, it will then move the electric contactor 44 by gravity as indicated by the arrows 45, until said contactor 44 closes the electrical circuit 41. The source of electrical power supply 42 is then able to supply electric power to the indicator light 43 which will instantly light up, thereby testifying to the presence of water in the tank 2 of the water heater 1. The heating means 5 can then be activated knowingly, in order to heat the water present in said water heater 1. The electric switch 44 is a piece capable of conducting the electric current and is preferably made of metal.

En se référant aux figures 5A et 5B, un quatrième mode de réalisation préféré d'un dispositif de sécurité 50 d'un chauffe-eau 1 selon l'invention est automatique et comprend un circuit électrique 51 doté d'une source d'alimentation 52 en courant électrique pouvant préférentiellement être une batterie, un relais 53 qui est relié au moyen de chauffage 5, et un contacteur électrique 54 mobile. Par défaut, le contacteur électrique 54 est disjoint du circuit électrique 51, plaçant ledit circuit électrique 51 dans une configuration ouverte. Le tube interne 3 débouche dans le raccord diélectrique ou le manchon 6, en étant séparé du circuit électrique 51 par le contacteur 54.Referring to Figures 5A and 5B a fourth preferred embodiment of a safety device 50 of a water heater 1 according to the invention is automatic and comprises an electric circuit 51 provided with a power source 52 for electric current that may preferentially be a battery , a relay 53 which is connected to the heating means 5, and a movable electric switch 54. By default, the electric switch 54 is disjoint from the electric circuit 51, placing said electric circuit 51 in an open configuration. The inner tube 3 opens into the dielectric connection or the sleeve 6, being separated from the electric circuit 51 by the contactor 54.

Ainsi, en se référant à la figure 5A, en l'absence d'eau dans le tube interne 3, le circuit électrique 51 du dispositif de sécurité est ouvert et aucun courant électrique ne circule dans celui-ci. Le relais 53 reste inactif, et le moyen de chauffage 5 ne peut pas être déclenché.So, referring to the Figure 5A in the absence of water in the inner tube 3, the electrical circuit 51 of the safety device is open and no electric current flows in it. The relay 53 remains inactive, and the heating means 5 can not be triggered.

A l'inverse, en se référant à la figure 5B, si de l'eau est présente dans le tube interne 3, elle va alors déplacer le contacteur électrique 54 par gravité comme l'indiquent les flèches 55, jusqu'à ce que ledit contacteur 54 ferme le circuit électrique 51. La source d'alimentation électrique 52 est alors en capacité d'alimenter en courant électrique le relais 53, qui va instantanément déclencher le moyen de chauffage 5 pour faire monter en température l'eau présente dans le réservoir 2 du chauffe-eau 1. Le fait que le moyen de chauffage 5 puisse être activé, témoigne de la présence d'eau dans le réservoir 2 du chauffe-eau 1.Conversely, referring to the Figure 5B if water is present in the inner tube 3, it will then move the electric switch 54 by gravity as indicated by the arrows 55, until said contactor 54 closes the electrical circuit 51. The source of power supply 52 is then able to supply electric power to relay 53, which will instantly trigger heating means 5 to raise the temperature of water in tank 2 of water heater 1. The fact that the means 5 can be activated, testifies to the presence of water in the tank 2 of the water heater 1.

Claims (11)

Chauffe-eau (1) comprenant un réservoir (2) destiné à contenir de l'eau et un moyen de chauffage (5) de l'eau stockée dans ledit réservoir (2), caractérisé en ce qu'il comprend un dispositif de sécurité (20, 30) anti-chauffe à sec, apte à détecter la présence d'eau dans le réservoir (2), et en ce que ledit dispositif (20, 30) comporte un circuit électrique (21, 31) doté d'une source énergétique (22, 32) et d'un élément de détection (23, 33) de la présence d'eau dans le réservoir (2), l'eau présente dans le réservoir (2) fermant électriquement ledit circuit (21, 31) et activant ledit élément de détection (23, 33).Water heater (1) comprising a reservoir (2) for containing water and means for heating (5) the water stored in said reservoir (2), characterized in that it comprises a safety device Drying device (20, 30) capable of detecting the presence of water in the tank (2), and in that said device (20, 30) comprises an electric circuit (21, 31) provided with a energy source (22, 32) and a detection element (23, 33) of the presence of water in the reservoir (2), the water present in the reservoir (2) electrically closing said circuit (21, 31). ) and activating said detection element (23, 33). Chauffe-eau selon la revendication 1, caractérisé en ce que l'eau s'insère dans le circuit électrique (21, 31) et permet le passage du courant grâce à ses propriétés de conduction électrique.Water heater according to claim 1, characterized in that the water is inserted in the electric circuit (21, 31) and allows the passage of the current through its electrical conduction properties. Chauffe-eau selon la revendication 1, caractérisé en ce que le circuit électrique comprend un contacteur, et en ce que l'eau présente dans le réservoir (2) active ledit contacteur par gravité.Water heater according to claim 1, characterized in that the electric circuit comprises a contactor, and in that the water present in the tank (2) activates said contactor by gravity. Chauffe-eau selon l'une quelconque des revendication 1 à 3, caractérisé en ce que l'élément de détection est un élément d'avertissement (23) détectable depuis l'extérieur dudit chauffe-eau (1).Water heater according to any one of claims 1 to 3, characterized in that the sensing element is a warning element (23) detectable from outside said water heater (1). Chauffe-eau selon la revendication 4, caractérisé en ce que l'élément de détection est une source lumineuse (23).Water heater according to claim 4, characterized in that the sensing element is a light source (23). Chauffe-eau selon la revendication 4, caractérisé en ce que l'élément de détection (23) est une source sonore.Water heater according to claim 4, characterized in that the sensing element (23) is a sound source. Chauffe-eau selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'élément de détection (33) pilote un relais permettant d'alimenter le moyen de chauffage (5).Water heater according to any one of claims 1 to 3, characterized in that the sensing element (33) drives a relay for supplying the heating means (5). Chauffe-eau selon la revendication 7, caractérisé en ce que le moyen de chauffage (5) est une résistance chauffante.Water heater according to claim 7, characterized in that the heating means (5) is a heating resistor. Chauffe-eau selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il comprend un tube (3) interne émergeant vers l'extérieur du réservoir (2), et en ce que le dispositif de sécurité (20, 30) est placé le long dudit tube (3) à l'extérieur du réservoir (2).Water heater according to one of Claims 1 to 8, characterized in that it comprises an internal tube (3) emerging towards the outside of the tank (2), and in that the safety device (20, 30) ) is placed along said tube (3) outside the tank (2). Chauffe-eau selon la revendication 9, caractérisé en ce que le tube est un tube interne (3) au réservoir (2) permettant de détecter un remplissage complet dudit réservoir (2) en eau, et en ce que le dispositif de sécurité (20, 30) est placé sous le réservoir (2) au niveau d'une sortie dudit tube interne (3).Water heater according to claim 9, characterized in that the tube is an inner tube (3) to the tank (2) for detecting complete filling of said tank (2) with water, and that the safety device (20) , 30) is placed under the reservoir (2) at an outlet of said inner tube (3). Chauffe-eau selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif de sécurité (20, 30) est inséré dans un support (6) à choisir parmi un manchon et un raccord diélectrique.Water heater according to any one of claims 1 to 9, characterized in that the safety device (20, 30) is inserted in a support (6) to be selected from a sleeve and a dielectric connection.
EP19305628.0A 2018-06-06 2019-05-16 Water heater provided with a dry anti-heating safety system Active EP3578902B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1854920A FR3082292B1 (en) 2018-06-06 2018-06-06 WATER HEATER HAVING AN ANTI-DRY HEATER SECURITY SYSTEM

Publications (2)

Publication Number Publication Date
EP3578902A1 true EP3578902A1 (en) 2019-12-11
EP3578902B1 EP3578902B1 (en) 2023-01-11

Family

ID=62816845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19305628.0A Active EP3578902B1 (en) 2018-06-06 2019-05-16 Water heater provided with a dry anti-heating safety system

Country Status (6)

Country Link
EP (1) EP3578902B1 (en)
ES (1) ES2941309T3 (en)
FR (1) FR3082292B1 (en)
PL (1) PL3578902T3 (en)
PT (1) PT3578902T (en)
UA (1) UA126765C2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360124A1 (en) * 1976-07-30 1978-02-24 Amiens Const Electro Mecan Heating power switching control in domestic appliance - uses micromotor actuated only on reception of signal detecting appliance operating conditions
JPS5661865U (en) * 1979-10-17 1981-05-26
JPS60219516A (en) * 1984-04-16 1985-11-02 Matsushita Electric Ind Co Ltd Bath boiler with water level detector
EP0933602A1 (en) * 1998-01-26 1999-08-04 Atlantic Industrie Electronic management device for electric hot water accumulator
DE10145575A1 (en) * 2001-09-15 2003-04-03 Electolux Haustechnik Gmbh Hot water tank has arrangement for detecting current between container, object in container, preventing heater from switching on, switching off and/or outputting signal if no/too little current

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360124A1 (en) * 1976-07-30 1978-02-24 Amiens Const Electro Mecan Heating power switching control in domestic appliance - uses micromotor actuated only on reception of signal detecting appliance operating conditions
JPS5661865U (en) * 1979-10-17 1981-05-26
JPS60219516A (en) * 1984-04-16 1985-11-02 Matsushita Electric Ind Co Ltd Bath boiler with water level detector
EP0933602A1 (en) * 1998-01-26 1999-08-04 Atlantic Industrie Electronic management device for electric hot water accumulator
DE10145575A1 (en) * 2001-09-15 2003-04-03 Electolux Haustechnik Gmbh Hot water tank has arrangement for detecting current between container, object in container, preventing heater from switching on, switching off and/or outputting signal if no/too little current

Also Published As

Publication number Publication date
FR3082292B1 (en) 2020-05-08
EP3578902B1 (en) 2023-01-11
RU2019115636A (en) 2020-11-24
PT3578902T (en) 2023-03-22
FR3082292A1 (en) 2019-12-13
PL3578902T3 (en) 2023-05-29
UA126765C2 (en) 2023-02-01
ES2941309T3 (en) 2023-05-19

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