EA021487B1 - Heating radiator element - Google Patents

Abstract

A heating radiator element (1) has a base body (2) and at least one front or rear heat-exchange plate (6, 7), which extends longitudinally along an axis (Z) and has a pair of longitudinal opposite lateral edges (11) and a pair of opposite faces (13, 14); the plate (6, 7) has a plurality of cuts (18) formed orthogonally passing between the opposite faces (13, 14) of the plate and delimiting a plurality of plate portions (17), in particular three or more plate portions, arranged coplanar and aligned parallel to the axis (Z).

Description

The present invention relates to a heating radiator element, in particular for heating buildings.

The level of technology

As is known, a heating radiator can be formed by a set of elements connected to each other to form a radiator of suitable dimensions; Each element has a housing made of a metallic material, and the inside is a chamber in which water for heating circulates. Plates and fins pass from the body, by means of which the heat of water is transferred to the external environment in which the radiator is installed.

In particular, known radiator elements typically have a front heat transfer plate and a rear heat transfer plate; These plates are essentially formed as uniform and solid plates (only in some cases, the back plates have a pair of holes for inserting the brackets to attach the element to the wall).

Nevertheless, it is possible to improve the present limits of the efficiency of heat exchange of radiator elements of this type.

Summary of Invention

The purpose of the present invention is to provide an extremely efficient radiator element, which at the same time is simple and relatively inexpensive to manufacture.

Therefore, the present invention relates to a radiator element as defined in the mandatory conditions of the attached claim 1 and its additional features in the dependent claims.

The radiator is formed by elements in accordance with the invention having higher efficiency than other known solutions: in fact, the particular configuration of at least one of the radiating plates makes it possible to obtain circulation conditions that guarantee high heat exchange efficiency.

Moreover, an element of the invention can be produced in a relatively simple and inexpensive manner and can also meet production requirements, for example, be made from die-cast aluminum, which is therefore extremely convenient for production.

Brief Description of the Drawings

Additional characteristics and advantages of the present invention will be apparent from the following description of a non-limiting example of an embodiment thereof with reference to the figures of the accompanying drawings, in which:

FIG. 1 is a rear / side perspective view of a radiator element in accordance with a first embodiment of the invention;

FIG. 2 is a front / side perspective view of a radiator element in accordance with a second embodiment of the invention;

FIG. 3 is a front / side perspective view of a radiator element in accordance with a third embodiment of the invention;

FIG. 4 and 5 are respectively a front / side perspective view and a rear view of a radiator element in accordance with a fourth embodiment of the invention.

The best embodiment of the invention

Referring to FIG. 1 radiator element 1 for heating buildings has a base body 2 made of a metallic material, in particular aluminum, and, for example, but not necessarily, of die-cast aluminum; the housing 2 is a hollow housing comprising a substantially tubular main portion 3 extending longitudinally along the main axis X, which with reference to the usual position of use of the element 1 is substantially vertical; element 1 is provided with an internal chamber 4 for a water hole and transverse connecting pipes 5 for connection with other radial elements and / or with a hydraulic system.

The housing 2 has a front heat exchanger plate 6, in operation, facing substantially the medium to be heated, the rear heat exchanger plate 7 opposite to the front plate 6; plates 6, 7 run along the respective axes Ζ parallel to the X axis, and are essentially parallel to each other; in a non-limiting example, FIG. 1 plates 6, 7 are connected to the main section 3 by corresponding central longitudinal ribs 8 (only one of which is visible in FIG. 1), which are essentially located in the plane of symmetry of element 1, extend radially from the main section 3, essentially orthogonal plates 6, 7.

Moreover, element 1 has two opposite sides 9 (only one of which is visible in FIG. 1), which have corresponding opposite side surfaces 10; in the non-limiting example illustrated in FIG. 1, but not necessarily, the side surfaces are defined by the respective side surface portions of the main portion 3 and the corresponding surfaces of the ribs 8.

Plates 6, 7 are bounded by corresponding pairs of opposite longitudinal side edges 11 and a corresponding pair of opposite surfaces 13, 14, for example, but not necessarily 1 021487 but essentially flat and parallel; in particular, each plate 6, 7 has an inner surface 13 directed to another plate and an outer surface 14 opposite to the inner surface 13.

In the non-limiting example illustrated in FIG. 1, plates 6, 7 are essentially orthogonal to the plane of symmetry of element 1 and generally have (in particular, essentially rectangular) the shape of a quadrilateral; it is clear that one or both plates can have a different shape from that described here only as an example; it is possible, for example, to use surfaces that are curved, wavy, etc. and / or are round, oval, etc.

The back plate 7 is formed from a plurality of plate sections 17, and more precisely at least three, and preferably four or more, arranged coplanarly and sequentially on one line along the axis (parallel to the X axis); plate 7 has many through slots and / or holes 18, which are formed by orthogonal passage of space between surfaces 13, 14, are arranged sequentially along axis Ζ, axially spaced apart along axis Ζ and delimit many plate sections 17.

In particular, plate 7 has at least a sequence of three or more (and preferably four or more) cuts and / or holes 18, which are arranged sequentially along the Ζ axis, axially spaced along the axis and delimit at least three ( preferably at least four) plate sections 17 placed coplanarly and in a line parallel to the axis; each lamellar portion 17 is axially limited by a pair of consecutive cuts and / or holes 18 along the axis.

At least two slots 18 of the sequences are located in the central region of the plate 7; the central region of the plate 7 is the region of the plate 7, which is placed on opposite sides of the middle transverse surface perpendicular to the Ζ axis, which intersects the plate 7 halfway up along the axis of the plate 7, and which has a height (measured along the Ζ axis) equal to at least measure half of the total height of plate 7 (also measured along the axis).

The central region includes at least two plate sections 17.

In the example illustrated in FIG. 1, the plate 7 has two sequences of slits 18 placed next to each other; the slits 18 of the two sequences face each other; pairs of slits 18 of two sequences are arranged in a line in the transverse direction (perpendicular) of the axis. The slits 18 of each sequence are essentially placed in a line parallel to the axis.

Preferably, each sequence is formed by at least four slots and / or holes 18 arranged successively along the axis Ζ and axially spaced along the axis Ζ, which define at least four plate sections 17 placed coplanarly and in a line parallel to the axis.

Here and in the following, the term slit is used to indicate a generalized hole formed by passing through the plate between the opposite surfaces of the plate, regardless of its production method, its shape, etc .; the slits, in particular, can have any shape and can be limited by edges (for example, openings) closed around the perimeter or edges (for example, slits) that are not closed at the perimeter.

In the non-limiting example illustrated in FIG. 1, the plate 7 has elongated slots 18 substantially transverse to the axis Ζ.

Preferably, but not necessarily, the slots have a width smaller than the length (where the width means a measurement made parallel to the axis, and a length means a measurement made in the direction perpendicular to the axis).

Each plate section 17 has an inner surface directed to the housing 2 and the front plate 6, and the outer surface opposite to the inner surface formed by the corresponding portions of the surfaces 13, 14 of the plate 7.

In the embodiment of FIG. 1, each slot 18 extends between the opposite side edges 11 of the plate 7 and intersects the plate 7 in the transverse direction, separating the plate sections 17 from each other.

The plate sections 17 are mechanically supported by the edge 8, which in the illustrated example extends substantially along the entire length of the plate, and also connects the plate sections 17 to each other; the lamellar portions 17 are fixed on the front edge 19 of the rib 8 by means of corresponding internal surfaces and are supported in a mounted manner on the front edge 19; in other words, the front edge 19 of the rib 8 is positioned at the rear with respect to the external surfaces of the plate sections 17 and is not coplanar with them.

Alternatively, the lamellar portions 17 are limited to a pair of opposite slots 18 that extend substantially from mutually opposite side edges 11 and are separated by a central connecting element or connecting portion that is coplanar to the lamellar portions 17 and connects the lamellar portions 17. In such a case, the connecting element is flush with the surfaces of the plate sections 17.

In any case, the side edges 11 of the plate 7 are not solid, being interrupted by the corresponding sequences of slots 18 arranged along the side edges 11; each of the side edges 11 is interrupted in at least three, and preferably in four or more longitudinal locations.

In the example illustrated in FIG. 1, the front plate 6 is formed from a solid flat thin plate, i.e. without cracks, and, for example, is essentially a rectangle that has essentially straight side edges 11 without gaps; in any case, it is understood that the front plate 6 can also be formed by plate-like portions 17, like the back plate 7, as illustrated in FIG. 2, on which both the front plate 6 and the back plate 7 are formed from a corresponding plurality of lamellar portions 17 bounded by corresponding sets of slots 18.

In the example of FIG. 2 plate sections 17 plates 6, 7 are bounded by pairs of opposite slits 18; the slits 18 of each pair extend from the respective mutually opposite side edges 11 and are separated by a central connecting element or connecting section 20 formed by the corresponding protruding element of the rib 8 and essentially being flush with the outer surfaces of the plate sections 17.

Thus, it is clear that only the front plate 6 can exhibit slots 18 bounding the plate-like portions 17, and the back plate 7 can be formed by a continuous thin plate. In general, at least one of the front plate 6 and the back plate 7 or else both plates 6, 7 are formed with a plurality of plate sections 17.

As illustrated in FIG. 1 and 2, the radiator element 1 also advantageously comprises a plurality of radiating fins 25, which extend from the body 2; in particular, element 1 contains two opposing, preferably symmetrical sets of 26 ribs 25, which extend from the respective side surfaces 10 of the sides 9.

The ribs 25 generally extend in the longitudinal direction along the sides 9, for example, substantially orthogonally to the plane of symmetry of the element 1 and / or substantially orthogonally to the side surface 10 of the side 9 from which they extend.

Each rib 25 is defined by a substantially flat thin plate; ribs 25 are essentially flat and parallel to each other and plates 6, 7 (but can also be curved or have other shapes). Each edge 25 extends substantially between the two longitudinal ends of the body 2.

In the embodiment illustrated in FIG. 3, the ribs 25 are arranged in rows 27, which extend along the respective axes A, substantially parallel to the axis X.

Each row 27 is formed from a plurality of ribs 25 (at least two, and preferably three or more ribs) arranged in a line along the corresponding axis A and separated by a sequence of valleys 28; the ribs 25 of adjacent rows 27 are staggered in relation to each other in a direction transverse to the A axis, or, more precisely, at least some of the ribs 25 of each row 27, at least partially directed to the corresponding depressions 28 of the adjacent row.

Preferably, each set 26 contains three, four, or more rows of 27 edges stacked in a checkerboard pattern; each row 27 has ribs 25 staggered in relation to ribs 25 of an adjacent row or rows 27.

In the embodiment illustrated in FIG. 4 and 5, the back plate 7 (and / or the front plate 6, despite being represented as a solid thin plate in FIG. 4) has wavy side edges 11 provided with corresponding sequences of slots 18 that follow each other along the side edges 11 and are shaped so as to define corresponding concave depressions in the side edges 11.

In particular, the plate 7 has opposite pairs of slots 18 (in particular, at least two, and preferably at least three pairs of slots 18), which extend from the respective side edges 11 of the plate 7 towards each other (not connecting) and limit three or more plate sections 17, which are arranged in series along the axis Ζ.

Each pair of slits 18 is formed by two opposite I-shaped or Y-shaped slits 18, if required, bounded by rounded edges and separated by a central connecting element or connecting section 20 that connects two consecutive plate sections 17.

Preferably, the slots 18 formed on each side edge 11 are aligned with the respective slots 18 formed on the opposite side edge 11; alternatively, the slits 18 formed on the two side edges 11 are staggered.

The connecting portions 20 are located coplanar with the plate portions 17, and their respective front surfaces are flush with the outer surfaces of the plate portions 17, with which they form the outer surface 14 of the plate 7.

Due to the presence of slots 18, the connecting portions have a transverse width (measured perpendicular to the axis on the outer surface 14 or between the tops of the slots 18 of each pair

- 3 021487 slots), smaller than the width of the plate sections 17.

Also in this embodiment, the element 1 advantageously comprises ribs 25 arranged in rows in a staggered manner in the transverse direction.

In this case, rows 27 of ribs 25 are formed from corresponding wavy walls 29 extending along respective axes A; each wall 29 has a sequence of ridges and troughs, which respectively define the ribs 25 and valleys 28. Also in this embodiment, the ribs 25 of adjacent rows 27 (or rather, adjacent walls 29) are at least partially arranged in a staggered manner in the direction transverse axis A; for this purpose, the walls 29 are of such a shape and arranged so that the ridges and depressions of the adjacent walls are arranged in a staggered manner in the direction transverse to the axis A.

In conclusion, it is clear that additional modifications and changes can be made to the radiator element described and illustrated in the materials of the present invention without departing from the scope of the appended claims.

Claims (10)

1. A heating radiator element (1) comprising a base hollow body (2) comprising a substantially tubular main portion 3 extending longitudinally along the main axis X, and at least one front and rear heat exchange plate (6, 7), which runs longitudinally along the axis (Ζ) and has a pair of opposite longitudinal lateral edges (11) and a pair of opposite surfaces (13, 14); the plate (6, 7) is connected to the main section 3 by a central longitudinal rib 8, which is mainly located in the plane of symmetry of the element 1, extends radially from the main section (3) and is essentially orthogonal to the plates (6, 7), and the plate (6, 7) has many through slots and / or holes (18) formed orthogonally between opposite surfaces (13, 14) of the plate, arranged sequentially along the axis (Ζ) and axially spaced along the axis (Ζ); moreover, the plate (6, 7) has at least one sequence of three or more elongated slots (18), essentially transverse to the axis Ζ, placed sequentially along the axis (Ζ) and axially spaced along the axis (Ζ), which limit at least at least three plate sections (17) arranged coplanarly and in a line parallel to the axis (Ζ), and mechanically supported by rib 8; moreover, each plate section (17) is axially limited by a pair of consecutive slots and / or holes (18) along the axis (причем), and the longitudinal side edges (11) of the plate (6, 7) are discontinuous, interrupted by corresponding sequences of slots (18) located along the lateral edges (11), each of the lateral edges (11) being interrupted in at least three or more longitudinal locations. 2. The radiator element according to claim 1, in which the sequence is formed by at least four slots and / or holes (18) placed sequentially along the axis (Ζ) and axially spaced along the axis (Ζ), which define at least four plate sections (17) placed coplanarly and in a line parallel to the axis (Ζ). 3. The radiator element according to claim 1 or 2, in which at least two slots and / or holes (18) of the sequences are located in the central region of the plate portion (17), the central region having a height along the axis (Ζ) equal to at least half of the total height of the plate (6, 7). 4. The radiator element according to any one of the preceding paragraphs, in which the side edges (11) are discontinuous and / or wavy and / or have gaps, recesses and / or tears. 5. The radiator element according to any one of the preceding paragraphs, in which the side edges (11) are wavy and provided with an appropriate sequence of slots (18) that follow one after the other along the side edges and are shaped to form corresponding concave recesses in the side edges . 6. The radiator element according to any one of the preceding paragraphs, in which the slots (18) pass between two longitudinal opposing lateral edges (11) of the plate (6, 7) and completely intersect the plate in the transverse direction, separating the plate sections (17) from each other . 7. The radiator element according to any one of the preceding paragraphs, in which the plate (6, 7) has pairs of opposite slots (18) placed in a line perpendicular to the axis (Ζ), which extend from the corresponding longitudinal lateral edges (11) of the plate in the direction to each other and limit the plate sections (17). 8. The radiator element according to claim 7, in which the slots (18) of each pair are separated by a central connecting element or connecting section (20), which connects two consecutive plate sections (17). 9. The radiator element of claim 8, in which the connecting sections (20) are placed coplanar with the plate sections (17). 10. A radiator element according to any one of the preceding paragraphs, comprising a front plate (6) and a rear plate (7), wherein one of the front plate (6) and the rear plate (7) or - 4 021487 both said plates (6, 7) are formed from a plurality of plate sections (17).