Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
  • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
  • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
  • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
  • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
  • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
  • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

• the present invention relates to a heating device, in particular of the liquid circulation type.
• a common indoor heating system consists of radiators in which a heating liquid (typically hot water) circulates.
• a heating liquid typically hot water
• the radiators used in these systems may be made of various metal materials and are often formed of batteries of radiator elements which are manufactured separately and then joined together.
• a typical radiator element has a substantially tubular body, provided with an inner chamber through which the water flows (water chamber) and with hydraulic connections for connection to other similar radiator elements and/or to a hydraulic circuit and arranged at the opposite ends of the element; two opposite partitions extend from the water chamber, along a centreline plane of the element, supporting, respectively, a front plate and a rear plate; a plurality of heat exchange fins extend from the tubular body.
• radiators comprising such elements are entirely satisfactory and have now reached the limits of their performance and can be improved no further, or at least only minimally, especially in terms of their specific power per unit of weight, i.e., the ratio between the thermal power emitted by the radiator element and transferred to the environment (measured according to specific standards, for instance EN 442), and the weight of the element (which is the fundamental parameter directly affecting production costs) .
• One purpose of the present invention is therefore to provide a heating device, in particular made of aluminium, which can also be used instead of conventional radiators or radiator elements and which has high thermal efficiency while at the same time having good mechanical resistance and resistance to internal pressure.
• the present invention thus relates to a heating device such as defined in its essential terms in the appended claim 1 and, in its secondary and preferred features, in the dependent claims.
• the heating device according to the invention is particularly efficient, in particular it enables the heat from the heating liquid to be exploited in full, and at the same time offers adequate resistance from a structural perspective .
• the heating device according to the invention thus overcomes the technical problem of providing a high efficiency and high power heating device.
• the technical problem has been overcome with a different distribution of the heating liquid, which is brought close to all the available heat exchange surfaces: the design of the water chamber is thus different with respect to the prior art and has been extended so that it occupies practically all of the available space, between the front and the back of the device, so that the heating liquid directly laps the main (largest) heat exchange surfaces of said device.
• the inventors of the invention in question have realised that to increase the power and general efficiency, rather than increasing the amount of water, the water must be completely distributed over the available heat exchange surfaces .
• the water chamber is a single chamber that substantially extends so as to directly wet, at least in part, the heat exchange plate (typically, the front plate of the device) provided with the heat exchange surface directly facing the environment to be heated.
• the heat exchange plate typically, the front plate of the device
• the water chamber extends from the front plate up to a rear plate of the device.
• the water chamber directly wets at least a portion of the front plate and/or of the rear plate of the device .
• the device according to the invention which has a specific geometry that is by its very nature disadvantageous from a mechanical perspective, is made of aluminium (this term also refers to aluminium alloys) and in particular aluminium obtained by an extrusion or die-casting process, in order to guarantee the necessary structural resistance.
• FIG. 1 is a perspective view of a first embodiment of a heating device according to the invention.
• FIG. i is a side view of the device shown in Figure i;
• Figures 3 and 4 are two section views along the dashed lines III-III and IV-IV, respectively, of Figure 2;
• FIGS. 5 and 6 are cross section views (identical to the section view in Figure 3) of respective alternative embodiments of the heating device illustrated in Figures 1- 4;
• FIG. 7 is a perspective view of a second embodiment of the heating device according to the invention.
• FIG. 8 and 9 are, respectively, a longitudinal section view and a cross section view of the heating device of Figure 7;
• FIG. 1 denoted as a whole by reference numeral 1 is a heating device (for heating environments inside buildings) of the liquid circulation (for example, hot water) type.
• the liquid circulation for example, hot water
• the device 1 comprises a body 2 made of aluminium (said term also comprising aluminium alloys, i.e., alloys containing aluminium) , for example aluminium obtained by extrusion (i.e., made of aluminium or an alloy containing aluminium produced by means of an extrusion process) or by die-casting (i.e., made of aluminium or an alloy containing aluminium produced by means of a die-casting process) .
• aluminium alloys i.e., alloys containing aluminium
• aluminium obtained by extrusion i.e., made of aluminium or an alloy containing aluminium produced by means of an extrusion process
• die-casting i.e., made of aluminium or an alloy containing aluminium produced by means of a die-casting process
• the body 2 is a hollow body and is provided with a single inner chamber 3 (water chamber) in which a heating liquid (for example, hot water) circulates when in use.
• a heating liquid for example, hot water
• the body 2 comprises a front heat exchange plate 4 and a rear heat exchange plate 5, positioned at respective opposite ends of the body 2 (precisely, with reference to the normal position of use of the device 1, a front end and a rear end) and substantially facing one another and joined along respective peripheral edges 6 which together form a closed loop perimeter edge 7 of the chamber 3.
• the plates 4, 5 (and each of the edges 6 and also the edge 7) have a substantially quadrangular shape (being for example substantially square or rectangular) , but it is understood that the plates 4, 5 (and the edges 6 and the edge 7) may be of a different shape.
• the front plate 4 has an inner face 8 facing the chamber 3 and wet by the heating liquid and which thus exchanges heat with the heating liquid in the chamber 3 (receiving heat from the heating liquid) ; and an outer face 9, opposite to the inner face 8 and defining a first heat exchange surface 10, in particular a main front heat exchange surface of the device 1, facing, when in use, the environment to be heated and which exchanges heat with the air in the environment in which the device 1 is installed (releasing heat into the air) , in addition to releasing heat into the environment by radiation.
• the rear plate 5 has an inner face 11 facing the chamber 3 and wet by the heating liquid and which thus exchanges heat with the heating liquid in the chamber 3 (receiving heat from the heating liquid) ; and an outer face 12, opposite to the inner face 11 and defining a second heat exchange surface 13, facing, when in use, a supporting wall W to which the device 1 is fixed by fastening members (of a type known and not illustrated here for the sake of simplicity) and which exchanges heat with the air in the environment in which the device 1 is installed (releasing heat into the air) .
• the chamber 3 extends along a longitudinal axis A, vertical when in use, and a transverse axis B, horizontal when in use, defining, respectively, the height and width of the chamber 3; and along a third axis C, perpendicular to the longitudinal axis A and to the transverse axis B and defining the thickness of the chamber 3.
• the chamber 3 is delimited at the front by the front plate 4 and precisely by the inner face 8 of the front plate 4 facing the chamber 3; and at the back by the rear plate 5 and precisely by the inner face 11 of the rear plate 5, facing the inner face 8 of the front plate 4.
• the thickness of the chamber 3 is thus defined as the distance between the front plate 4 and the rear plate 5 and precisely between the inner face 8 of the front plate 4 and the inner face 11 of the rear plate 5.
• the plates 4, 5 need not necessarily be plane and parallel as illustrated in Figures 1-4, but may have different shapes and be arranged differently: for example, one or both of the plates 4, 5 could be curved, corrugated, etc.; and/or the plates 4, 5 could slope towards one another.
• the chamber 3 may thus have a variable (different) thickness (measured parallel to the axis C) along the longitudinal axis A and/or along the transverse axis B.
• the chamber 3 is a thin chamber, with a thickness that is smaller (in at least one or more parts of the chamber 3 if not throughout the chamber 3) with respect to the other dimensions (height and width) and with respect to at least one from between the height and the width.
• the chamber 3 has a generally flattened shape and mainly extends along the longitudinal axis A, vertical when in use, and the transverse axis B, horizontal when in use, defining, respectively, the height and the width of the chamber 3; and the chamber 3 has a thickness, measured perpendicularly to the longitudinal axis A (vertical when in use) and to the transverse axis B (horizontal when in use), i.e., along the axis C perpendicular to the longitudinal axis A and to the transverse axis B, which is significantly smaller than the height and the width.
• the chamber 3 substantially extends on the entire front plate 4 with the exception of the peripheral edge 6 of the front plate 4 joined to the corresponding peripheral edge 6 of the rear plate 5.
• the chamber 3 extends on at least 60% of the front plate 4: at least 60% of the surface of the inner face 8, facing the chamber 3, of the front plate 4 thus faces the chamber 3.
• the chamber 3 occupies at least 60% of the inner face 8 of the front plate 4, i.e., the chamber 3 has a contact surface with the inner face 8 of the front plate 4 (meaning the surface of the chamber 3 delimited on the inner face 8 of the front plate 4 from the perimeter edge 7 and thus excluding any spaces inside the chamber 3 occupied by internal elements such as spacers, ribs, structural reinforcements, flow conveyors, etc., which will be described later on) that is at least 60% of the overall surface of the inner face 8 of the front plate 4.
• the chamber 3 extends on at least
• the plate 4 extend directly, at least in part, from the chamber 3 and comprises at least a wall portion 14 that directly delimits the chamber 3 and, in use, comes directly into contact with the heating liquid contained in the chamber 3.
• the inner face 8 of the plate 4 comprises at least a surface portion 15 that directly delimits the chamber 3.
• the chamber 3 extends between the two plates 4, 5 and comes directly into contact with at least respective surface portions 15 of both of the plates 4, 5.
• Both of the plates 4, 5 extend directly, at least in part, from the chamber 3 and comprise at least respective wall portions 14 that directly delimit the chamber 3 and, in use, come directly into contact with the heating liquid contained in the chamber 3 via respective surface portions 15.
• the body 2 is further provided with connections 16 extending from one or both of the plates 4, 5 and communicating with the chamber 3.
• connections 16 extend from the rear plate 5 and precisely from the outer face 12 of the rear plate 5 and are substantially perpendicular to the rear plate 5 and to the outer face 12 of the rear plate 5.
• the device 1 has four connections 16 positioned at respective corners of the chamber 3. It is nonetheless understood that the body 2 may be provided with a different number of connections 16, also arranged in other positions, not necessarily at the corners of the chamber 3. Preferably, but not necessarily, the connections 16 are positioned along the perimeter edge 7 of the chamber 3.
• connections 16 are defined by respective sleeves, for example but not necessarily substantially cylindrical (but the sleeves may also have a different shape) , and their purpose is to connect the device 1 to an external hydraulic circuit (not illustrated) and/or to connect the device 1 to other identical devices to define a modular system.
• connections 16 that are not used to connect the device 1 to another identical device to define a modular system or to connect the device 1 to the external hydraulic circuit are closed by plugs (not illustrated) .
• the chamber 3 has at least one inlet 16a and one outlet 16b defined by respective connections 16.
• the front plate 4 and the rear plate 5 are both substantially plane and parallel; it is understood that the front plate 4 and/or the rear plate 5, like their faces, may have a different shape, for example curved, corrugated, etc.
• the outer face 9 of the front plate 4 is, for example, substantially smooth.
• the rear plate 5 supports a plurality of heat exchange fins 17 which extend outside the chamber 3 from the rear plate 5 and precisely from the outer face 12 of the rear plate 5.
• the fins 17 are substantially perpendicular to the outer face 12 of the rear plate 5 and parallel to one another and to the longitudinal axis A (vertical when in use) . It is understood that the fins 17 may be formed and arranged differently, i.e., the fins 17 may have a different shape, they may be oriented in a different way, arranged differently with respect to one another compared with that illustrated merely by way of example.
• all of the fins 17 extend directly from the chamber 3 and extend directly from a wet wall 18 of the chamber 3, in this case defined by the rear plate 5, so that all of the fins 17 are so-called "wet fins". All of the fins 17 have a root edge 19 extending directly from the wet wall 18 of the chamber 3, which comes directly into contact with the heating liquid.
• the fins 17 are made as an integral part of the wet wall 18 of the chamber 3 and thus of the plate 5 from which they project so as to form a monolithic piece therewith (i.e., the fins are not borne by or joined to the plate 5, but are made directly with the plate 5, for example during an extrusion or die-casting step) .
• the front plate 4 and the rear plate 5 comprise or constitute respective main walls 24, 25 of the chamber 3 with respective inner surfaces 26, 27 facing the chamber 3 and wet by the heating liquid contained in the chamber 3.
• main walls refers to the walls of the chamber 3 (i.e., the walls that delimit the chamber 3 and come directly into contact with the heating liquid contained in the chamber 3) with a larger surface extension (area) than every other wall of the chamber 3.
• the front plate 4 and the rear plate 5 thus comprise or constitute the main walls 24, 25 of the chamber 3 and precisely a front wall 24 that, in use, faces the environment to be heated, and a rear wall 25 that, in use, faces the wall W of the environment to be heated.
• the inner faces 8, 11 of the plates 4, 5 define (or comprise) the inner surfaces 26, 27 of the main walls 24, 25.
• the chamber 3 is delimited by the two main walls 24, 25, facing one another and defined in the embodiment illustrated in Figures 1-4 by the plates 4, 5; and by the perimeter edge 7 connecting the main walls 24, 25 to one another and has an extension (surface) that is smaller than each of the main walls 24, 25.
• the front plate 4 and the rear plate 5, comprising the main walls 24, 25 of the chamber 3 and the respective peripheral edges 6 shaped so as to couple with one another, are advantageously formed of respective monolithic pieces, made for example of aluminium obtained by means of a die- casting process; the two pieces that make up the two plates 4, 5 are then joined along the respective peripheral edges 6, so as to form a mechanical and fluid-tight joint.
• the plates 4, 5 are joined by means of a thermo-electric melting process, performed by circulating current through respective contact portions of the pieces to be joined to cause the local melting thereof, without the contribution of welding material (as described in international patent application W02014 / 155295 ) .
• the plates 4, 5 may, however, be joined in other ways, for example by means of mechanical joining methods (possibly with the interposition of sealing gaskets), gluing, other types of welding (not necessarily electromagnetic), etc.
• the perimeter edge 7 of the chamber 3 is defined by the peripheral edges 6, coming into contact with (superimposed) and joined to one another, of the plates 4, 5.
• the plates 4, 5 have substantially the same footprint (the same dimensions) along the longitudinal axis A and the transverse axis B and the edges 6 are substantially flush with one another (i.e., the edges 6 do not protrude laterally or transversely with respect to one another) .
• the frame 29 is a perimeter portion (of one of the plates 4, 5 or of both of the plates 4, 5) which extends by more than 10 mm (or more than 15 mm, or more than 20 mm) from the chamber 3 (from the point closest to the chamber 3) .
• the frame 29 has a thickness of less than approximately 2 mm.
• the frame 29 is defined by a perimeter portion of the plate 4 (or of the plate 5) and extends from the peripheral edge 6 of the same plate 4 (or of the plate 5) and beyond the peripheral edge 6 of the same plate and is detached (separated) from the peripheral edge 6 of the other plate .
• the frame 29 has the purpose of further increasing the specific power per unit of weight of the device 1: in the area of the frame 29, the temperature of the air that laps the device 1 is lower so that heat is still exchanged efficiently even with a heat exchange surface (the frame 29) that is also at a lower temperature than the other surfaces of the device 1 (in particular the walls 24, 25 of the chamber 3 and the fins 17, all of which are directly in contact with the heating liquid in the chamber 3) .
• the frame 29 may project beyond the perimeter edge 7 of the chamber 3 (i.e., beyond the edge 6 of the plate 4 or of the plate 5) from all the sides or from some sides only of the edge 7, i.e. of the plate 4 (or of the plate 5) .
• the frame 29 may project beyond the edge 7 along the longitudinal axis A, from both sides or only from one side of the transverse axis B; and along the transverse axis B, from both sides or only from one side of the longitudinal axis A.
• the frame 29 may project evenly (i.e. by an equal amount) from all the sides of the edge 7 or differently from different sides of the edge 7.
• the frame 29 may be substantially plane and parallel to the outer face 9 of the plate 4 (or to the outer face 12 of the plate 5) , as illustrated in Figure 5; or it may be differently shaped, for example folded or inclined or curved with respect to the outer face of the plate from which it projects (for example, the outer face 9 of the plate 4, or the outer face 12 of the plate 5) and towards the opposite plate, so as also to have the function of covering the fins 17, as illustrated in Figure 6.
• the frame 29 may also be folded or inclined or curved with respect to the outer face 9, 12 of the plate 4, 5 from which it projects and, instead of towards the opposite plate, on the other side with respect to the opposite plate, so as to extend away from or towards it.
• any one of the plates 4, 5 may have a peripheral frame 29, and that both of the plates 4, 5 may have respective peripheral frames 29 which extend from the respective peripheral edges 6 of the plates 4, 5 and are spaced and separated from one another, or are joined to one another (so as to form a single frame with double thickness) .
• ties 33 i.e., projections that extend between the front plate 4 and the rear plate 5 (i.e., between the main walls 24, 25) and are integral with (firmly joined to or made as a single piece with) the inner face 8 of the front plate 4 and with the inner face 11 of the rear plate 5, i.e., with respective inner faces, facing the chamber 3, of the main walls 24, 25.
• the ties 33 are made as a single piece with one of the plates 4, 5 and extend towards the opposite plate, to which they are joined, for example, by means of welding or thermo-melting when the plates 4, 5 are joined to one another to form the device 1, in particular by means of a local thermo-electric melting process on each tie 33; in particular, the ties 33 are shaped as protuberances on the inner face 11 of the rear plate 5 (and are made for example by being die-cast with the plate 5) and are welded to the inner face 8 of the front plate 4. Alternatively, the ties 33 may be made separately and welded to the two plates 4, 5; or even made as integral parts of both of the plates 4, 5.
• the ties 33 may be defined directly as integral parts of both of the plates 4, 5; or as integral parts of one of the plates 4, 5 which are then joined (welded) to the other plate; or as separate components which are then joined (welded) to both of the plates 4, 5.
• the ties 33 are distributed on the faces 8, 11 and their main function is to increase the mechanical resistance of the device 1, in particular to improve its resistance to pressure.
• the ties 33 also contribute to making the device 1 fluid tight, in that they contribute to keeping the two plates 4, 5 joined together so as to prevent any leakage of liquid .
• the ties 33 are inserted along the path of the heating liquid in the chamber 3, they also have a function of distributing the heating liquid in the chamber 3.
• the chamber 3 houses between the two plates 4, 5 internal elements 34 (which may also include the ties 33) which act on the flow of the heating liquid circulating in the chamber 3, for example to define one or more paths in the chamber 3, to distribute the heating liquid in the chamber 3, to modify the motion of the heating liquid in the chamber 3, etc.
• the elements 34 are shaped and arranged so as to aid the even distribution of the water in the chamber 3.
• the elements 34 comprise, in addition to the ties 33, a first distributor 35a, positioned at a top end 36a of the chamber 3, and/or a second distributor 35b, positioned at a bottom end 36b of the chamber 3 (again with reference to the normal position of use of the device 1: the ends 36a, 36b are axially opposite ends with respect to the longitudinal axis A) .
• the distributors 35a, 35b are defined by respective transverse walls, for example substantially parallel to the axis B (or slanting with respect to the axis B, or curved or even differently shaped) which extend between the inner face 8 of the front plate 4 and the inner face 11 of the rear plate 5 and between two lateral opposite sides of the chamber 3 and are provided with respective series of longitudinally spaced through apertures 37.
• the distributor 35a is positioned close to and below an inlet 16a, defined by one of the sleeves 16 and positioned at the top end 36a of the chamber 3.
• the distributor 35a is positioned close to and below an inlet 16a, defined by a first connection 16 positioned at the top end 36a of the chamber 3; and the distributor 35b is positioned close to and above at least one outlet 16b, defined by another connection 16 positioned at the bottom end 36b of the chamber 3.
• the chamber 3 has an inlet 16a, defined by a first connection 16 positioned at a top end of the chamber 3; and two outlets 16b, defined by respective further connections 16 positioned at the bottom end of the chamber 3 and at respective opposite lateral ends of the chamber 3.
• the heating liquid enters the chamber 3 through the inlet 16a and flows out through both of the outlets 16b, after being distributed substantially evenly inside the chamber thanks to the distributors 35a, 35b.
• the chamber 3 may also house just one of the distributors 35a, 35b.
• the shape of the distributors 35a, 35b may also differ from that illustrated and described here purely by way of example.
• FIGS 7-9 in which details similar or identical to those already described are denoted by the same reference numerals, show a second embodiment of the heating device 1 according to the invention.
• the device 1 comprises a body 2 made of a metal material, in particular aluminium, provided with an inner chamber 3 (water chamber) through which, in use, the heating liquid (hot water) circulates.
• a body 2 made of a metal material, in particular aluminium, provided with an inner chamber 3 (water chamber) through which, in use, the heating liquid (hot water) circulates.
• the body 2 is configured so as to be used in place of a conventional radiator element to form a battery of radiator elements arranged side by side.
• the chamber 3 has a generally flattened shape and mainly extends along a longitudinal axis A, vertical when in use, and a transverse axis B, horizontal when in use, defining, respectively, the height and the width of the chamber 3.
• the chamber 3 has a height and a width measured, respectively, along a longitudinal axis A (vertical when in use) and a transverse axis B (horizontal when in use) , and a thickness measured along an axis C (also horizontal when in use) perpendicular to the longitudinal axis A and to the transverse axis B.
• the chamber is again delimited by a pair of opposite main walls 24, 25, facing one another, and by a perimeter edge 7, which connects the main walls 24, 25 to one another and has a surface that is smaller than each of the main walls 24, 25.
• the chamber 3 has, for example, a generally flattened shape, as described above.
• the chamber 3 mainly extends in height and width, respectively, along the longitudinal axis A and the transverse axis B; and has a thickness, measured along the axis C perpendicular to the longitudinal axis A and to the transverse axis B, that is significantly less than the height and the width.
• the thickness of the chamber 3 is again defined as the distance between the main walls 24, 25 (thus measured along the axis C) and precisely between respective inner surfaces 26, 27 of the main walls 24, 25.
• main walls 24, 25 are substantially perpendicular to the main front heat exchange surface 10 of the device 1 (and not, as in the embodiment described with reference to Figures 1-4, substantially parallel to the surface 10) .
• the main walls 24, 25 define respective lateral sides of the device 1.
• the surface 10 consists of an outer face 9 of a front plate 4 which extends from the perimeter edge 7 of the chamber 3.
• the plate 4 is joined to a front portion 28a of the perimeter edge 7 of the chamber 3.
• the plate 4 comprises at least a wall portion 14 which directly delimits the chamber 3, by means of a surface portion 15 of the face 8, and, in use, comes directly into contact with the heating liquid contained in the chamber 3.
• the front portion 28a of the edge 7 is formed by the wall portion 14 of the plate 4, so that the plate 4 directly delimits the chamber 3 forming the front portion 28a of the edge 7, i.e., the plate 4 extend directly from the chamber 3 and has an inner face 8 that is in part wet by the heating liquid circulating in the chamber 3.
• the body 2 also comprises a rear plate 5, which extends from a rear portion 28b of the perimeter edge 7 of the chamber 3.
• the plate 5, like the plate 4, may extend directly from the chamber 3, having a wall portion 14 that forms the rear portion 28b of the edge 7 and which is therefore directly wet by the heating liquid circulating in the chamber 3.
• the plate 4 and/or the plate 5 extend directly, at least in part, from the chamber 3 and are completely or at least partly in direct contact with the heating liquid contained in the chamber 3, i.e., they have at least respective wall portions 14 that delimit the chamber 3 and, in use, come directly into contact with the heating liquid contained in the chamber 3.
• the plate 4 and/or the plate 5 are also so-called "wet fins".
• the wall portions 14 form respective portions of the edge 7 of the chamber 3.
• the device 1 comprises further heat exchange surfaces defined by a plurality of heat exchange fins 17 which extend outside the chamber 3 from the main walls 24, 25.
• the fins 17 are substantially perpendicular to the main walls 24, 25 and parallel to one another and to the longitudinal axis A (vertical when in use) . It is understood that the fins 17 may be formed and arranged differently.
• all of the fins 17 extend directly from the chamber 3, since they are joined directly to wet walls 18 of the chamber 3, in this case defined by said main walls 24, 25 of the chamber 3, so that all of the fins 17 are "wet fins”.
• the fins 17 are made as an integral part of the plates 4, 5 from which they extend and form a monolithic piece therewith.
• connections 16 are arranged in pairs at respective opposite longitudinal ends (positioned along the longitudinal axis A) , respectively, in use, a top end and a bottom end of the body 2.
• connections 16 extend from both of the walls 24,
• connections 16 positioned at a same longitudinal end are aligned with one another parallel to the axis C.
• the body 2 is advantageously (but not necessarily) formed by two monolithic pieces, each comprising one of the main walls 24, 25 and a respective peripheral edge 6.
• peripheral edges 6 are shaped so as to couple with one another to form the perimeter edge 7 of the chamber 3.
• the pieces that comprise the main walls 24, 25 and the respective peripheral edges 6 are made for example of aluminium obtained by die-casting and joined, advantageously by means of the thermo-electric melting process described previously, along the respective peripheral edges 6, so as to form a mechanical and fluid-tight joint.
• the joint (melting) along the peripheral edges 6 permits effective heat transmission by both of the main walls 24, 25 of the chamber 3 to the plates 4, 5.
• Figure 9 also shows one of the ties 33 that are positioned inside the chamber 3 and which extend between the opposite walls 24, 25 of the chamber 3 and are integral with respective inner surfaces 26, 27 of both of the walls 24, 25.
• Figures 10 and 11 illustrate further alternative embodiments of the device according to the invention, in which the chamber 3 again extends between the plates 4, 5, positioned, respectively, at a front end and at a rear end of the device 1.
• the chamber 3 comprises a main compartment 43, which extends along the transverse axis B and is delimited by the main walls 24, 25; and one ( Figure 10) or two (Figure 11) end compartments 44, communicating with the main compartment 43 and extending parallel to the axis C on the front plate 4 and/or on the rear plate 5.
• one or both of the plates 4, 5 comprise wall portions 14 that delimit the chamber 3 and are wet directly by the heating liquid .

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• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Air-Conditioning For Vehicles (AREA)
• Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
• Surface Heating Bodies (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Control And Other Processes For Unpacking Of Materials (AREA)
• Heat-Pump Type And Storage Water Heaters (AREA)
• Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

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• 2016
  • 2016-06-07 IT ITUA2016A004171A patent/ITUA20164171A1/it unknown
• 2017
  • 2017-06-07 EA EA201892593A patent/EA037961B1/ru unknown
  • 2017-06-07 EP EP17749514.0A patent/EP3465045A1/en not_active Withdrawn
  • 2017-06-07 CN CN201780035712.9A patent/CN109564066B/zh not_active Expired - Fee Related
  • 2017-06-07 WO PCT/IB2017/053357 patent/WO2017212416A1/en active Search and Examination

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