FR3042851A1 - ELECTRIC HEATER - Google Patents

Abstract

The electric radiator (10) comprises: - a frame provided with an electric resistor (14), - a reconstituted stone facade (18) supported by the frame and - a flexible seal (19) positioned on the edge (12) of the chassis in contact with reconstituted stone. In embodiments: - the flexible seal runs along the chassis turn, from a lower part of the frame until the return to this lower part of the frame, - the flexible seal is made of silicone, - the flexible seal has a section in "U" surrounding the edge of the frame and / or - the flexible seal is the same color as the outside of the frame.

Description

TECHNICAL FIELD OF THE INVENTION

The present invention is an electric heater. It applies, in particular, to home heating, office or electrical energy production site.

STATE OF THE ART

Electric radiators with metal facades are unsightly.

Electric radiators with reconstituted stone facades are known. However, the bond between the reconstituted stone and the chassis comprising the electrical resistance has irregularities that have at least four disadvantages. On the one hand, these irregularities are unsightly. On the other hand, some of the air heated by the electrical resistance flows through these irregularities between the reconstituted stone and the frame, resulting in visible dusting. In addition, this circulation of hot air causes a local heating, by conduction, faster stone and therefore a risk of cracks due to thermal stress between the cold and hot parts of the stone during the ignition phase of the radiator cold. Finally, the different thermal expansion of the chassis, on the one hand, and the reconstituted stone, on the other hand, causes friction between the frame and the reconstituted stone, which leads to wear and cracks.

OBJECT OF THE INVENTION

The present invention aims to remedy all or part of these disadvantages. For this purpose, the present invention is an electric heater which comprises: - a frame provided with an electrical resistance, - a reconstituted stone facade supported by the frame and - a flexible seal positioned on the edge of the frame in contact with the stone reconstituted.

Thanks to these provisions, it avoids visible contact irregularities between the stone and the frame. In addition, the air heated by the electrical resistance does not circulate through irregularities between the reconstituted stone and the frame, which avoids dusting and the risk of cracks due to thermal stresses between the cold and hot parts of the stone when the ignition phase of the cold radiator. Finally, the different thermal expansion of the frame and the reconstituted stone does not cause any friction and thus avoids any wear or crack.

According to particular features, the flexible seal runs along the chassis ride, from a lower part of the chassis to return to this lower part of the chassis.

Thanks to these provisions, the ends of the flexible seal are visible neither from above the electric radiator, nor from the side. In addition, the air heated by the rising electrical resistance, it is not likely to cause dusting between the ends of the joint. Finally, the seal can be cut and it is therefore not necessary to make a continuous seal for each frame model.

According to particular characteristics, the flexible seal is made of silicone.

Thanks to these provisions, the seal has good resistance to temperature variations.

According to particular features, the flexible seal has a "U" section surrounding the edge of the frame.

Thanks to these provisions, the edge of the frame is surrounded on all sides and there is no risk that it comes out of the joint.

According to particular characteristics, the flexible seal is the same color as the outside of the frame.

Thanks to these provisions, there is little visible visual presence of the seal and the aesthetics of the radiator is enhanced.

BRIEF DESCRIPTION OF THE FIGURES Other advantages, aims and particular characteristics of the invention will become apparent from the following nonlimiting description of at least one particular embodiment of the device and method that are the subject of the present invention, with reference to the accompanying drawings. , in which: - Figure 1 shows, schematically and in sectional front view, a particular embodiment of a radiator object of the present invention, - Figures 2A and 2B show, schematically and in sectional view from the side the electric radiator illustrated in FIG. 1; FIG. 3 is a diagrammatic plan view of the electric radiator illustrated in FIGS. 1 and 2; FIG. 4 represents, in block diagram form, electronic modules integrated in FIG. particular embodiments of the electric heater object of the present invention and - Figures 5 to 7 represent successions of steps put for the operation of particular embodiments of the electric heater object of the present invention.

DESCRIPTION OF EXAMPLES OF EMBODIMENT OF THE INVENTION

This description is given in a nonlimiting manner, each feature of an embodiment being able to be combined with any other feature of any other embodiment in an advantageous manner. Moreover, each parameter of an exemplary embodiment can be implemented independently of other parameters of said exemplary embodiment.

It is already noted that the figures are not to scale.

FIG. 1, which is not to scale, shows a schematic view of a radiator 10 in a plane parallel to the front of the radiator. FIGS. 1 to 3 show: - a chassis base 11, - a chassis edge 12, - a power supply 13 connected to the mains, - an electrical resistor 14, powered by the power supply 13, - two wall brackets 15, - a control electronics 16, which controls the power supply of the resistor 14, - a touch screen 17, - a facade 18 of reconstituted stone and - a flexible seal 19 covering the chassis edge 12 (see in particular the figure partial enlarged 2B).

Apart from the control electronics 16, the touch screen 17 and the gasket 19, the elements illustrated in FIGS. 1 to 3 are of types known to those skilled in the art of electric heaters.

The seal 19 avoids visible contact irregularities between the stone and the frame. The air heated by the electrical resistance does not circulate through irregularities between the reconstituted stone and the frame, which avoids dusting and risks of cracks due to thermal stresses between the cold and hot parts of the stone during the phase. ignition of the cold radiator. The different thermal expansion of the frame and the reconstituted stone does not cause any friction and thus avoids any wear or crack.

In the embodiment illustrated in FIG. 1, the flexible seal 19 runs along the tower 12 of the chassis, from a lower part 20 of the chassis until it returns to this lower part 20 of the chassis. The ends of the flexible seal 19 are therefore visible neither from above the electric radiator 10, nor from the side. In addition, the air heated by the rising electrical resistance, it is not likely to cause dusting between the ends of the flexible seal 19. Finally, the flexible seal 19 can be cut and it is not necessary to perform a continuous seal for each frame model.

The flexible seal 19 is preferably made of silicone and therefore has good resistance to temperature variations.

In the embodiment illustrated in Figures 1 and 2, the flexible seal 19 has a section "U" surrounding the edge 12 of the frame. The edge 12 of the frame is thus surrounded on all sides and there is no risk that it comes out of the flexible seal 19.

Preferably, the flexible seal 19 is of the same color as the outside of the frame. Visually there is therefore very little visible presence of the seal and the aesthetics of the radiator 10 is enhanced. The touch screen 17 constitutes a user interface of the control electronics 16. With this touch screen 17, many additional functions can be controlled and parameterized by the user, for example, start and end times of heating. daily, days of the week during which the heating works differently, messages received or emitted by the radiator, including remote, detections of people and the consequences in terms of heating.

As illustrated in FIG. 4, the control electronics 16 comprise: a detector 35 for the presence of a person, for example with infrared rays, a short-range transceiver 31, for example according to one of the Wifi protocols or Bluetooth, to send data messages ("data") to a server, for example via a digital decoder (or "box"), - a transceiver 33 of short messages ("SMS") on a mobile telephone network, - a time memory 32, - a temperature sensor 34 and - a sensor 36 of voltage and / or electrical intensity consumed. The electronics 16 control the electrical resistance 14 in a variable manner as a function of the detection of presence by the detector 35. Thus, in the absence of people in the heated room, the electronics 16 reduces the set temperature and causes energy savings.

At least one transceiver 31 or 33 is configured to send a message a message representative of the presence detection of a person by the detector 35. The radiator 10 can thus warn a user of the presence of a person in his local .

The schedule memory 32 maintains schedules, for each day of the week, to which a message representative of the presence detection of a person is sent. The radiator 10 does not emit a message representative of the presence detection of a person outside these hours. The user is not disturbed by presence messages at hours, outside the hours, where he has programmed that it is normal that there is such a presence. Preferably, the schedule memory is loaded by the exchange of messages, via one or the other of the transceivers 31 and 33.

Thanks to the transceiver 31, the radiator 10 can communicate, for example by Wifi (registered trademark) or Bluetooth (trademark) with objects present in its environment, for example a digital decoder ("box"), a telephone mobile, a computer tablet or a connected object, or with remote people, via a digital decoder, which relays messages to remote servers. The radiator can thus communicate remotely to signal the presence of a person, or receive orders or values of operating parameters, such as message transmission times, for example.

With the short message transmitter 33, the radiator 10 can send or receive short messages ("SMS" for short message System) to communicate on the presence of a person, or to receive commands or parameter values of operation. The electronics 16 is configured to communicate remotely the temperature measured by the temperature sensor 34. A user can thus, remotely, know the temperature in the room where the radiator is installed and give commands, for example stop or heating of the radiator. The electronics 16 is configured to remotely communicate the consumed power consumption measured on the basis of the values provided by the sensor 36. A user can thus, remotely, know the power consumption due to the heating of a room.

In embodiments (not shown), the electric heater 10 includes a wireless low-speed network message transceiver. For example, this transceiver uses UNB ("Ultra narrow band") radio technology, such as that of Sigfox (registered trademark) or LoRa (registered trademark). With this transceiver, the radiator 10 can transmit or receive short messages to communicate on the presence of a person, to receive commands or values of operating parameters.

In embodiments (not shown), the radiator 10 includes a radio signal repeater of a short-range network. For example, this repeater is a Wifi repeater. The Radiator extends the range of communication on this short-range network.

FIGS. 5 to 7 show three parallel and independent functions of the radiator 10.

The management of the presence detection notification messages is shown in FIG. 5. During a step 42, the radiator is turned on. During a step 44, the electronics 16 receives an activation message of the presence detection. During a step 46, the electronics 16 activates the presence detector 35. During a step 48, the detector 35 detects a presence and determines whether the current time is part of the transmission schedules of a presence detection notification. If yes, during a step 50, the electronics 16 transmits a message, through a mobile phone network and / or the Internet, via a Wifi decoder, which signals the detection of presence. During a step 52, the electronics 16 receives a message of deactivation of the presence detection. During a step 54, the electronics 16 deactivates the presence detector 35.

FIG. 6 shows the control, remotely, for example by a mobile telephone network or via the Internet, heating or stopping the heating by the radiator 10. In a step 56, FIG. electronics 16 receives a heating activation message with a set temperature. During a step 58, the electronics 16 controls the supply of the electrical resistance 14 until the set temperature is measured by the temperature probe 34, then maintains this set temperature by electrically powering again, the electrical resistance 14 whenever the measured temperature deviates from the set temperature. During a step 60, the electronics 16 receives a message of deactivation of heating. During a step 62, the electronics 16 stops supplying the electrical resistance 14.

Figure 7 shows the management of the absence of a person facing the radiator 10. During a step 64, in an automatic operating program, the electronics 16 determines whether the time corresponds to a heating time. For example, a memory (not shown) retains hours, for each day of the week, during which the heating must be reduced or stopped. If so, during a step 66, the electronics 16 controls the supply of the resistor 14 to maintain a set temperature. However, if, during a step 68, no presence is detected opposite the radiator 10, during a step 70, the set temperature is reduced, for example by 1 ° C., until a presence is detected by the presence detector 35. This automatically saves energy in the absence of anyone in the heated room.

If, during a step 72, the control electronics detect a rapid drop in ambient temperature, sign of the opening of an opening, in particular a window, during a step 74, the set temperature is reduced, for example by 5 ° C, for a predetermined time, for example half an hour. This automatically realizes additional energy savings when an opening of the room is open. Optionally, the opening of an opening is signaled remotely, as the presence detection of a person at times chosen by the user. The opening of an opening can, indeed, mean the presence of a person in the heated room.

Claims (5)

1. Electric radiator (10), characterized in that it comprises: - a frame provided with an electrical resistance (14), - a facade (18) reconstituted stone supported by the frame and - a flexible joint (19) positioned on the edge (12) of the frame in contact with the reconstituted stone. 2. An electric radiator (10) according to claim 1, wherein the flexible seal (19) runs along the tower (12) of the frame, from a lower part of the chassis to return to this lower part of the frame. 3. Electric radiator (10) according to one of claims 1 or 2, wherein the flexible seal (19) is silicone. 4. Electric radiator (10) according to one of claims 1 to 3, wherein the flexible seal (19) has a section "U" surrounding the edge (12) of the frame. 5. Electric radiator (10) according to one of claims 1 to 4, wherein the flexible seal (19) is the same color as the outside of the frame.