EP3524910A1 - Heating body and method for the production of same - Google Patents

Abstract

The present application relates to a radiator (1), comprising - at least two connection cross sections (2), - at least two collecting ducts (3, 4) and - a plurality of heating ducts (5), the radiator (1) being connected by means of the connection cross sections (2) it can be connected to a flow (6) and a return (7) of a heating system providing a heating medium, the heating channels (5) extending between the collecting channels (3) and being connected to them in terms of flow technology, so that the heating medium from one of the collecting channels (3 ) can flow through the heating channels (5) into the other collecting channel (3), at least one heating channel (5) interacting at least indirectly in a heat-transferring manner with at least one convector plate (8), with at least one heating channel (5) having a large number of individual convector plates (8), which is distributed along a longitudinal axis (22) of the heating duct (5) and with a wall of the heating duct (5) which transmits force are connected, each of the convector sheets (8) comprising a base (9) in contact with the heating duct (5) and at least one leg (10) which, starting from the base (9), extends into one of the heating ducts (5 To provide a radiator whose stability is improved compared to the prior art, it is proposed according to the invention that the at least one leg (10) has a stiffening section (40) on one end facing away from the base (9), wherein a free end (17) of the stiffening section (40) is arranged on a side of the leg (10) facing away from the base (9). Furthermore, the present application relates to a method for producing such a radiator (1).

Description

introduction

• mindestens zwei Anschlussquerschnitte,
• mindestens zwei Sammelkanäle sowie
• eine Mehrzahl von Heizkanälen,

wobei mittels der Anschlussquerschnitte der Heizkörper an einen Vorlauf und einen Rücklauf eines ein Heizmedium bereitstellenden Heizungssystems anschließbar ist, wobei sich die Heizkanäle zwischen den Sammelkanälen erstrecken und strömungstechnisch mit diesen verbunden sind, sodass das Heizmedium von einem der Sammelkanäle durch die Heizkanäle in den anderen Sammelkanal überströmen kann, wobei mindestens ein Heizkanal zumindest mittelbar in Wärme übertragender Weise mit mindestens einem Konvektorblech zusammenwirkt, wobei mindestens ein Heizkanal eine Vielzahl einzelner Konvektorbleche aufweist, die entlang einer Längsachse des Heizkanals verteilt angeordnet und mit einer Wandung des Heizkanals in Kraft übertragender Weise verbunden sind, wobei jedes der Konvektorbleche eine mit dem Heizkanal in Kontakt stehende Basis und mindestens einen Schenkel umfasst, der sich ausgehend von der Basis in eine von dem Heizkanal abgewandte Richtung erstreckt.The present application relates to a radiator comprising

• at least two connection cross-sections,
• at least two collection channels as well
• a plurality of heating channels,

wherein by means of the connection cross sections of the radiator to a flow and a return of a heating medium providing heating system is connected, wherein the heating passages between the collecting ducts and fluidly connected thereto, so that the heating medium from one of the collecting ducts through the heating passages in the other collecting duct overflow can, wherein at least one heating channel at least indirectly in heat-transmitting manner with at least one convector cooperates, wherein at least one heating channel having a plurality of individual Konvektorbleche which are distributed along a longitudinal axis of the Heizkanals and connected to a wall of the Heizkanals in force-transmitting manner each of the convector plates comprises a base in contact with the heating channel and at least one leg extending from the base in a direction away from the heating channel.

Furthermore, the present application relates to a method for producing such a radiator.

A "collecting channel" is understood to be a channel of the heating element which interacts with at least two further channels in terms of flow. In particular, a collection channel can cooperate with a plurality of heating channels, which are each connected independently to the collection channel. In other words, in such a configuration, the heating channels are effectively connected in parallel with the collection channel.

For the purposes of the present application, a "heating channel" is understood to be a channel through which the heating medium can flow, the primary function of which is to deliver the thermal energy stored in the heating medium to the ambient air of the heating element. Consequently, there is typically an effort to have an effective surface of a Make heating channel comparatively large, so that in particular a convective heat exchange with the ambient air can take place. In general, a heating channel cooperates with a Konvektorblech or other device that is thermally connected to a wall of the heating channel and in this way increases the surface of the same drastically. In commercial wall radiators, the heating channels can be incorporated, for example, in a hot plate, wherein the heating channels between two horizontally arranged collecting ducts extend. Of course, it is also conceivable that the heating channels have a different orientation, in particular a horizontal orientation. Also tubular heating channels are conceivable, in particular in so-called "heating walls" flat tubes are used, the width of which significantly exceeds their height.

An "at least indirect connection" between a heating channel and at least one associated Konvektorbleche be understood in the context of the present application both indirect and direct connections. Typically, a convector plate is directly connected to a wall of a respectively associated heating channel, so that a heat transfer from the heating channel to the convector plate is particularly efficient. However, it is also conceivable that the convector plate cooperates only indirectly with the interposition of a connecting component with the heating channel.

For the purposes of the present application, "individual convector sheets" are convector sheets which, at least in an assembly state in which they are not yet installed on the radiator, are present separately from one another. Furthermore, the convector sheets can also be present in a finished state of the radiator, in which they are connected in force-transmitting manner with the heating channel, separately and therefore independently of each other. This independent arrangement is then reflected in the fact that an immediate transfer of forces from a convector plate to a respective adjacent convector plate is not possible.

It is also conceivable that the Konvektorbleche initially present separately on the heating channel before mounting, are mounted in this state on the heating channel and then coupled together, so that a direct exchange of forces between adjacent Konvektorbleche is possible. In principle, however, the individual convector sheets are not formed "integrally" on a superordinated convector plate, as is known in the prior art. Instead, the Konvektorbleche in the sense of the present application continue to be "individually" before.

State of the art

Radiators of the type described above are already known in the art. Reference is made in particular to the following documents: DE 10 2009 055 177 A1 . DE 32 27 146 A1 and DE 199 21 144 B4 ,

The known radiators each comprise a Konvektorblech which is provided with a plurality of Konvektorabschnitten. In other words, such a convector plate comprises a certain, repeating shape, which is typically wave-shaped or meander-shaped, wherein each of the periodically repeating portions of the convector plate forms a convector section, which in its mounted state on the radiator then together with the heating channels Convektorkanal trains. Convector sheets of this type are produced cyclically or continuously and cut as required to a certain length, so that a connection of the convector plate with the heating channels of the respective radiator is possible. The convector plate is typically welded to the heating channels.

The disadvantage of the known radiators is that it is not possible to influence the number of convection ducts formed on the heating channels, since these are determined exclusively by the shape of the convector plate. Thus, it is particularly conceivable that in order to ensure a certain heating power of a radiator, there is a need to basically use a certain convector plate, however, thereby automatically resulting plurality of convection channels for the intended use is nevertheless superfluous. Although this is of course harmless to the intended heating power of the respective radiator, the arrangement of a convector plate in the radiator but in any case associated with an increase in the weight of the radiator and additional costs for its production.

From the patent AT 256388 B goes out a method for producing a radiator, which is characterized by two process steps. In a first process step individual Konvektorbleche be welded to a flat sheet. In this case, the Konvektorbleche each have a base, which is welded to the respective heating channel, and a leg, the latter extending in a direction away from the heating channel direction. In a second process step, the sheet is bent with the welded Konvektorblechen in the desired shape of the heating channel.

The Japanese patent application JP 2002-168 470 A describes an air conditioner which is provided with a plurality of Konvektorblechen, consisting of a base and two legs. The Konvektorbleche are heat transfer through the bases arranged on a heating channel of the air conditioner and at the end remote from the heating channel end portions which form the legs of the Konvektorbleche, kinked.

task

The present invention has for its object to further develop a known radiator in view of the stability of the same.

solution

The underlying object is achieved, starting from the radiator of the type described above according to the invention that the at least one leg facing away from the base end has a stiffening portion, wherein a free end of the stiffening portion is disposed on a side facing away from the base of the leg.

For the purposes of the present application, a "free end" is understood to be an end of the convector plate which is present unconnected. In particular, no coupling of the convector plate with another object takes place at this free end. The free end of the stiffening portion is determined by that of the leg facing away from the region of the stiffening portion which has the greatest distance from the leg.

The introduction of stiffening sections on the end of the convector plate facing away from the base leads in particular to an improved stability of the same. Compared to the prior art, the Konvektorbleche no free end, which extends in a direction away from the heating channel and thus is freely accessible to a user. The introduction of stiffening sections thus also causes a reduced risk of injury. Furthermore, the stiffening sections are also particularly advantageous with regard to the optical design.

An advantageous embodiment of the radiator provides that the convector has a bend in a transition region between the leg and the stiffening portion, wherein an angle between the leg and the stiffening portion in a range between 0 ° and 179 °, preferably in a range between 10 ° and 120 °, lies. With regard to the overlap of the Konvektorbleche, it is particularly advantageous if the leg and the stiffening portion are arranged at an angle of about 90 ° to each other, so as to achieve a scale-like arrangement of Konvektorbleche.

Alternatively, it is also conceivable that a cross section of the stiffening portion is formed in a circular arc. In contrast to a kink, the transition between the leg and the stiffening portion is softer. Especially with regard to the force, which is necessary for the deformation of the material, a preceding embodiment is particularly advantageous.

The distribution of Konvektorbleche along the longitudinal axis of the heating channel can be done both regularly and irregularly. In other words, a distribution is conceivable in which distances between adjacent convector plates are the same throughout. Alternatively, however, it is also conceivable that a distance between at least two adjacent Konvektorblechen differs from the distance of at least two other adjacent Konvektorbleche. Furthermore, in principle, a distribution in both the longitudinal and in the transverse direction with respect to the longitudinal axis of the respective heating channel is conceivable. In other words, it may be advantageous to align the bases of the Konvektorbleche a respective heating channel perpendicular or parallel to the longitudinal axis of the heating channel. This depends primarily on the orientation of the heating channels themselves, it being understood that warm air carries out an ascending movement and the convector plates expediently together form correspondingly oriented channels through which air can flow.

The radiator of the invention has many advantages. As already apparent from the above description, a significant advantage is that individually and in particular, depending on the needs of the radiator can be equipped with any number of Konvektorblechen. The Konvektorbleche designed in the manner according to the invention each claim only a limited space on the associated heating channel, so that there is a great deal of freedom to the desired positioning of Konvektorbleche. In particular, the Konvektorbleche can be arranged unevenly along the heating channel, whereby, for example, an increased concentration of Konvektorblechen can be made in a side region of the radiator, in which then a convective heat exchange between the radiator and the environment is concentrated. Likewise, in the case of vertically oriented heating channels, as are typical in so-called "heating walls", it is conceivable that the convector plates are distributed differently over the height of the heating element, in accordance with a dissipated temperature distribution.

Compared to the prior art, there is therefore no unconditional binding to a superior number of uniformly distributed convection channels in the radiator according to the invention, which is imperative with the choice of a respective convector plate on the Radiator must be formed. By means of the individual equipment of a respective radiator with a desired number of Konvektorblechen also the mass of the later finished radiator is limited to a minimum. This is for a power-saving handling of the radiator during the installation of the same advantage.

For this purpose, it is particularly advantageous if at least one equipped with Konvektorblechen heating channel, preferably all heating channels, and the associated Konvektorbleche are formed as such of aluminum. Aluminum has particularly good heat-conducting properties at a low specific mass.

As already indicated above, furthermore, such a heating element may be advantageous in which two different convector plate pairs, which are each formed by two adjacent convector plates, have different distances between their convector plates. For example, it is conceivable that a distance of 3 cm exists between a first and a second convector plate and then there is a distance of 5 cm between the second and an adjoining third convector plate. It is understood that the distances between adjacent Konvektorblechen are arbitrary, since the Konvektorbleche according to the invention individually and independently and thus individually positioned - are connected to the heating channel.

A further particular advantage may result in a radiator according to the invention, in which at least two heating channels each have a plurality of mutually independent Konvektorbleche. The advantage can be given by the fact that distances between adjacent Konvektorblechen on the one heating channel differ from distances between adjacent Konvektorblechen on the other heating channel. In other words, different heating channels can each be formed with a different number of Konvektorblechen, so to speak, a "Konvektorblechdichte" differently on different heating channels. Such a configuration may be useful, for example, when flow through different heating channels are flowed through with different warming heating medium. It is understood that the heating channel, which is subjected to a higher temperature, can provide a higher energy output and should therefore be provided with a higher density of Konvektorblechen. Conversely, a heating channel through which comparatively cool heating medium flows can be provided with a smaller number of convector plates. Again, there is the advantage that only as many convector plates are formed on the radiator, as for optimal energy exchange between the radiator and the room to be heated are necessary. As a result, both the use of materials and the mass of the finished radiator are reduced to the bare minimum.

In a particularly advantageous embodiment of the radiator according to the invention, at least one convector plate, preferably all Konvektorbleche, only a single leg, which extends from an edge of the base in the direction away from the heating channel direction. Preferably, the leg extends relative to the base at an angle between 80 ° and 90 °, with an approximation of the angle at 90 ° to be preferred an angle of exactly 90 ° are optimal. A deviating from a strictly vertical arrangement of the leg relative to the base orientation of the leg has the particular advantage that an assembly tool, by means of which the base of the convector plate in force transmitting manner is connected to the heating channel, on the side facing away from the heating channel of the base additional space is available, since the leg evades to some extent laterally.

This is particularly significant if the respective convector plate is arranged in an advantageous manner by means of ultrasonic welding to the heating channel, since in this case a sonotrode of an ultrasonic welding device has a certain amount of space. The connection of a respective convector plate to the heating channel by means of ultrasonic welding has the particular advantages that it is relatively quickly possible, can be automated and also no significant temperature entry takes place in the heating channel, which could otherwise lead to undesirable residual stresses in the material of the heating channel.

In principle, but in particular with regard to a possible connection of the Konvektorbleche with a respective heating channel by means of ultrasonic welding, a combination of materials is advantageous in which a respective Konvektorblech of aluminum and the heating channel are formed of steel. The choice of aluminum for the Konvektorbleche has the advantage of the particularly pronounced thermal conductivity of aluminum and its low density. It is understood that other material combinations are of course also conceivable, in particular an embodiment of both the heating channels and the Konvektorbleche each made of aluminum.

In order to minimize the mass of the individual Konvektorbleche and therefore the mass of the finished radiator as possible to a minimum, it is also advantageous if each Konvektorblech is designed to be particularly thin, in particular a thickness of less than 0.2 mm, preferably less than 0 , 1 mm. For the function of the heat exchange with the environment to be heated, such a material thickness is without Further sufficient. However, the small thickness of Konvektorbleche can affect their stability. Consequently, it may be of particular advantage to equip at least the leg of a respective convector plate with at least one stiffener, preferably a plurality of stiffeners. These stiffeners preferably extend in the vertical direction of the leg, preferably starting from the base. Such stiffeners may be present in particular in the form of embossments, which are introduced in the cold state of the material in the Konvektorblech.

In addition or independently of the introduction of stiffeners, to increase the stability of a respective convector plate, it may also be advantageous if the stiffening section has at least one kink, preferably a plurality of kinks, at a free end.

In order to increase the static resistance of the individual Konvektorbleche significantly, it is also conceivable, a length of the stiffening portion, which is measured starting from the heating channel remote from the upper end of the leg and parallel to the heating channel, exceeds a distance of the associated Konvektorblechs of the respective adjacent Konvektorblech such that the stiffening portion of the convector sheet overlaps with the adjacent convector sheet. In this way, adjacent Konvektorblech can be brought into direct contact with each other despite their isolated form.

For a direct exchange of forces between adjacent Konvektorblechen it is then still particularly advantageous in this configuration, when the Konvektorbleche be directly connected. Such a connection is particularly conceivable when the individual convector plates are aligned transversely to the longitudinal axis of the heating channel, that is, the bases of the convector plates extend perpendicular to the longitudinal axis of the heating channel. In particular, it is conceivable that the overlapping regions of the adjacent Konvektorbleche cohesively, positively or positively coupled with each other. In particular, the formation of a positive connection is conceivable in that the respectively adjacent convector plates are pressed together in an overlap region.

If the bases of the convector plates are aligned parallel to the longitudinal axis of the respective heating channel, at least two convector plates of the heating channel in the width direction (or in the transverse direction) of the heating channel are preferably arranged such that they overlap at least partially, preferably are arranged completely side by side. The längsachsparallele arrangement of Konvektorbleche on the heating channel is to be preferred in particular with vertically oriented heating channels. The arrangement of several Konvektorbleche side by side on the heating channel helps to significantly increase the convection surface, which is created by means of Konvektorbleche. The convective heat exchange between the heating fluid and the air of the space to be heated can thus be increased.

In procedural terms, the underlying object is inventively achieved in that at least two adjacent Konvektorbleche, preferably a plurality of each adjacent Konvektorblechen, after their individual connection with a respective heating channel with each other in force transmitting manner are interconnected, in particular to form a positive connection.

Advantageously, the Konvektorbleche be aligned relative to a mounting direction such that the legs of a respective Konvektorblechs extending from a the starting region of the heating channel facing edge of the base. In other words, each convector plate to be connected to the heating channel is aligned prior to its connection to the heating channel such that the leg faces the preceding, already connected to the heating channel convector. Alternatively, it is also conceivable that the Konvektorbleche be aligned with their legs parallel to the longitudinal axis or parallel to the mounting direction of the respective heating channel.

Using the procedure according to the invention, the convector sheets can be arranged in a particularly simple manner and, in particular, automatically, individually on the respective heating channel. In particular, the leg of a respective convector plate is not in the way of further movement of an assembly tool in the assembly direction itself. This applies both to the longitudinal axis-parallel and to the longitudinal axis perpendicular orientation of the convector plates. Another results particularly well based on the following embodiments.

In an advantageous embodiment of the method according to the invention Konvektorbleche two Konvektorblechpaare are each arranged at different distances from each other. In this way, as needed, a higher concentration of Konvektorblechen be set at certain points of the respective Heizkanals; a continuous uniform distribution of Konvektorblechen according to the invention is not mandatory.

embodiments

Fig. 1:

Eine perspektivische Ansicht einer Vorderseite eines Heizkörpers,

Fig. 2:

Eine perspektivische Ansicht einer Rückseite des Heizkörpers gemäß Figur 1,

Fig. 3:

Ein Detail eines Konvektorblechs für einen erfindungsgemäßen Heizkörper,

Fig. 4:

Einen Querschnitt durch einen Heizkanal im Moment der Verbindung eines Konvektorblechs gemäß Figur 3 mit dem Heizkanal,

Fig. 5:

Eine perspektivische Ansicht des mit einem Konvektorblechs ausgestatteten Heizkanals gemäß Figur 4,

Fig. 6:

Einen Querschnitt durch den Heizkanal gemäß Figur 4 im Moment der Verbindung eines zweiten Konvektorblechs mit dem Heizkanal,

Fig. 7:

Eine perspektivische Ansicht des mit zwei Konvektorblechen ausgestatteten Heizkanals gemäß Figur 6,

Fig. 8:

Einen Querschnitt durch den Heizkanal gemäß Figur 7 im Moment der Verbindung eines dritten Konvektorblechs mit dem Heizkanal,

Fig. 9:

Eine perspektivische Ansicht eines vollständig mit einer Vielzahl von Konvektorblechen ausgestatteten Heizkanals,

Fig. 10:

Einen Querschnitt durch einen Heizkanal im Moment der Verbindung eines dritten, alternativ ausgebildeten Konvektorblechs mit dem Heizkanal,

Fig. 11:

Eine perspektivische Ansicht eines Ausschnitts des Heizkanals gemäß Figur 10,

Fig. 12:

Einen Querschnitt durch ein Werkzeug im Moment der Verbindung zweier Versteifungsabschnitte benachbarter Konvektorbleche mittels Verpressen,

Fig. 13:

Eine perspektivische Ansicht eines mit einer Mehrzahl von alternativ ausgebildeten Konvektorblechen verbundenen Heizkanals,

Fig. 14:

Einen Querschnitt durch einen Heizkanal, der mit längsachsparallel ausgerichteten Konvektorblechen ausgestattet ist,

Fig. 15:

Eine perspektivische Ansicht des Heizkanals gemäß Figur 14,

Fig. 16:

Einen Querschnitt durch einen weiteren Heizkanal, der mit längsachsparallel ausgerichteten Konvektorblechen ausgestattet ist und

Fig. 17:

Eine perspektivische Ansicht des Heizkanals gemäß Figur 16.

The radiator according to the invention and the method according to the invention are explained in more detail below with reference to exemplary embodiments, which are illustrated in the figures. It shows:

Fig. 1:

A perspective view of a front side of a radiator,

Fig. 2:

A perspective view of a rear side of the radiator according to FIG. 1 .

3:

A detail of a convector plate for a radiator according to the invention,

4:

A cross section through a heating channel at the moment of connection of a convector according to FIG. 3 with the heating channel,

Fig. 5:

A perspective view of the equipped with a Konvektorblechs heating channel according to FIG. 4 .

Fig. 6:

A cross section through the heating channel according to FIG. 4 at the moment of connection of a second convector plate to the heating channel,

Fig. 7:

A perspective view of the equipped with two Konvektorblechen heating channel according to FIG. 6 .

Fig. 8:

A cross section through the heating channel according to FIG. 7 at the moment of connection of a third convector plate to the heating channel,

Fig. 9:

A perspective view of a fully equipped with a plurality of Konvektorblechen heating channel,

Fig. 10:

A cross section through a heating channel at the moment of connection of a third, alternatively formed Konvektorblechs with the heating channel,

Fig. 11:

A perspective view of a section of the heating channel according to FIG. 10 .

Fig. 12:

A cross-section through a tool at the moment of the connection of two stiffening sections of adjacent Konvektorbleche by pressing,

Fig. 13:

A perspective view of a heating channel connected to a plurality of alternatively formed Konvektorblechen,

Fig. 14:

A cross section through a heating channel equipped with longitudinally parallel aligned convector plates,

Fig. 15:

A perspective view of the heating channel according to FIG. 14 .

Fig. 16:

A cross section through a further heating channel, which is equipped with längsachsparallel aligned convector plates and

Fig. 17:

A perspective view of the heating channel according to FIG. 16 ,

First, in the FIGS. 1 and 2 a known in the art radiator 1 , which is suitable for use with Konvektorblechen 8 , for example. Such a radiator 1 comprises two connection cross sections 2, three collecting channels 3, 4 and a plurality of horizontally oriented heating channels 5. The connection cross sections 2 are arranged here together on a connection set 39 at a lower end of the radiator 1 and serve to the radiator 1 to a Flow 6 and to connect a return 7 of a heating system, not shown. It is understood that one of the connection sections 2 with the flow 6 and the other with the return 7 can interact. The connection fitting 39 cooperates in the example shown with a lower, horizontally extending collecting duct 4 . This collecting channel 4 has in its central region to a blocking element, not shown, which prevents an immediate overflow of the heating medium from the flow 6 to the return line 7 or a short circuit between the terminal cross sections 2 .

The collecting channel 4 is fluidically connected in its associated with the lead 6 section with a vertical collecting channel 3 . The heating medium provided via the supply line 6 thus flows, starting from the supply line 6, into the lower collection channel 4 and then into the vertical collection channel 3 , in which it rises. Starting from the collecting channel 3 , the heating medium flows into the heating channels 5 , which are each fluidically connected to the collecting channel 3 . In other words, the heating channels 5 are connected in a sense parallel. The heating medium then flows through the individual heating channels 5 in the direction of an opposite collecting channel 3, which extends equally vertically. In this collecting channel 3 , the heating medium then flows back to the lower collecting channel 4 and its associated with the return 7 section. Finally, the heating medium is supplied via the lower collecting channel 4 to the return 7 and thus again to the heating system. It is understood that a temperature of the heating medium is continuously reduced in the course of the flow through the radiator 1 , since the thermal energy of the heating medium is discharged in particular by means of the heating channels 5 to the environment. The energy input into the environment takes place mainly by means of heat radiation and convection.

Such a radiator 1 - of course, however, any other conceivable radiator - includes in an embodiment of the invention a variety of Konvektorblechen 8. A single Konvektorblechs 8 is for example in FIG. 3 shown. It comprises a lower base 9 associated with a respective heating channel 5 , a leg 10 extending from the base 9 , and a stiffening portion 40 disposed on a base 9 , the upper end 17 of the leg . A longitudinal axis 37 of the base 9 is here oriented perpendicular to a longitudinal axis 22 of the associated heating channel 5 or parallel to a width direction 38 of the heating channel 5 . In the example shown, the leg 10 extends from an edge 13 of the base, wherein the convector plate 8 is provided at the edge 13 with a kink 24 . The leg 10 extends from the base 9 in a direction away from the heating channel 5 direction. In the example shown, the leg 10 and the base 9 together form an angle 14 , which is about 80 ° here. The purpose of this deviating from a vertical configuration of the angle 14 training opens up in connection with the following explanation FIG. 4 ,

At an upper end 17 of the leg 10 selbiger has a kink 18 . Starting from this upper end 17 then extends the stiffening portion 40 of the Konvektorblechs 8, at its end facing away from the leg 10, the Konvektorblech 8 has a free end 11 . In the example shown, the leg 10 and the stiffening portion 40 together form an angle 41 , which here is about 90 °. The stiffening portion 40 ensures that the leg 10 is not unintentionally rotated relative to the base 9 .

The Konvektorblech 8 is formed in the example shown by an aluminum sheet having a thickness of about 0.1 mm. The heating channels 5 are made of steel in the example shown. It is understood that the Konvektorblech 8 as such has a comparatively low stability due to its particularly thin design. In order to increase this, the convector plate 8 has a plurality of stiffeners 15, 23, which are introduced into the leg 10 . The stiffeners 15, 23 extend in the example shown parallel to a vertical direction 16 of the leg 10. The stiffeners 23 protrude from the leg 10 to the base 9 and stiffen in this way the kink 24 between the base 9 and the leg 10th . This is also ensured that no unintended rotation of the arm 10 takes place relative to the base 9.

The Konvektorblech 8 thus formed can be easily arranged on a heating channel 5 . By way of example, a connection is made here by means of ultrasonic welding, which in particular consists of FIG. 4 results. For this purpose, the Konvektorblech 8 according to FIG. 3 positioned with its base 9 on a respective heating channel 5 and then whose base 9 is welded to the heating channel 5 by means of a sonotrode 25 at a total of two spot welds 26 . In this way, a plurality of Konvektorblechen 8 are easily connected individually with the heating channel 5 . Alternatively, for example, a line-shaped weld is conceivable that can be generated with a disk-shaped or plate-shaped sonotrode. Based on the representation according to FIG. 4 now also the technical purpose of the angle 14 of less than 90 °: by means of the oblique orientation of the leg 10 relative to the base 9 namely the base 9 facing free space is created in which the sonotrode 25 is sufficient space to connect the Konvektorblechs 8 to be used with the heating channel 5 . A state of connected to the heating channel 5 Konvektorblechs 8 results particularly well based on the perspective view FIG. 5 , From this representation it follows that the convector plate 8 is welded by means of two welding points 26 with the heating channel 5 . The heating channel 5 is formed in the example shown in the form of a flat tube, through the inner cavity 27, the heating medium can flow. Due to the direct connection of the Konvektorblechs 8 with the heating channel 5 can finally take place a particularly efficient heat transfer from the heating medium to the Konvektorblech 8 and finally by means of convection to the environment to be heated. If a sonotrode is used whose dimensions are low enough, an embodiment of the angle 14 of 90 ° is to be preferred in principle.

In the course of equipping the heating channel 5 with a plurality of Konvektorblechen 8 another Konvektorblech 8 is welded to the heating channel 5 in a subsequent processing step. This is particularly evident from FIG. 6 , For this purpose, a further Konvektorblech 8 is arranged on a side facing away from the legs 10 of the first Konvektorblechs 8 and then again connected by means of the sonotrode 25 at two weld points 26 with the heating channel 5 . Here, the second convector plate 8 is positioned at a distance 12 to the first convector plate 8 . This distance 12 is chosen to be smaller than a parallel to the longitudinal axis 22 of the heating channel 5 measured length 33 of the stiffening portion 40 of the Konvektorbleche 8. Since the length 33 thus exceeds the distance 12 , there is an overlap region 28 in which the stiffening portion 40 of second Konvektorblechs 8 with the stiffening portion 40 of the first Konvektorblechs 8 overlaps. If necessary, in this overlapping region 28 , the convector sheets 8, which in principle are individually present, can be coupled together in a force-transmitting manner so as to produce a mutual stiffening. This will be explained separately below.

After the successful welding of the second convector plate 8 with the heating channel 5 , the latter finally comprises two Konvektorbleche 8. This is particularly well based on the representation according to FIG. 7 , From now on, the heating channel 5 can be provided in the same way with any number of Konvektorblechen 8 , wherein distances between adjacent Konvektorblechen 8 are arbitrary. The arrangement of the individual Konvektorbleche 8 takes place in a mounting direction, which extends from an initial region 19 of the heating channel 5 in the direction of an opposite end portion 20 . The mounting direction is therefore oriented parallel to the longitudinal axis 22 of the heating channel 5 . The placement of a third convector plate 8 - again at a distance 12 to the previous second convector plate 8 - is exemplified in FIG. 8 shown. As a result of complete processing of a heating channel 5 selbiger is equipped with a plurality of Konvektorblechen 8 . Such a finished heating channel 5 results, for example, from the illustration according to FIG FIG. 9 , There is also exemplified exemplified that between two centrally disposed, adjacent Konvektorblechen 34, a distance 21 is present, which exceeds the otherwise selected distances 12 between the Konvektorblechen 8 significantly. In the example shown, two packages of Konvektorblechen 8 are thus formed on the heating channel 5 so to speak. In this context, it should again be noted that the distances between adjacent Konvektorblechen 8 are basically completely freely selectable, since each Konvektorblech 8 is set individually.

As already indicated above, in the overlapping region 28 of the stiffening sections 40 of adjacent convector sheets 8 it is possible to make a connection, so that an immediate transfer of forces between the adjacent convector sheets 8 is possible. For this purpose, it is conceivable, for example, to press the stiffening sections 40 together by means of a tool 29 , so that a positive connection is established. This is exemplary in FIG. 10 shown. To produce the positive connection, a punch 35 in the direction of in FIG. 10 shown arrow 30 is pressed in the overlap region 28 against the stiffening portions 40 of the adjacent Konvektorbleche 8 . Since the material of the Konvektorbleche 8 is prevented in the stamping pressure side by means of cheeks 36 to avoid uncontrolled forms in the stiffening portions 40 a dedicated form-fit point 31 from. In the course of pressing the punch 35 onto the stiffening portions 40 , the cheeks 36 are laterally moved away from each other in the direction of the arrows 32 to give the material of the stiffening portions 40 room for deformation.

In a second embodiment, in the FIGS. 11 to 13 is shown, a modified type of Konvektorblechchen 8 is used as an alternative to the Konvektorblechen 8 as described above, the stiffening portions 40 is not formed in the same manner long stretched, but is brought by means of another bend 18 in a U-shape. This is particularly good based on the representation according to FIG. 11 recognizable. The deviating configuration of the stiffening portion 40 has the consequence that adjacent Konvektorbleche 8 form no overlap region 28 and therefore can not be directly connected to each other. The introduction of the further bend 18 has the advantage that the respective Konvektorblech 8 is additionally stiffened in the region of its stiffening portion 40 .

As alternative embodiments, FIGS FIGS. 14 to 17 Heating channels 5, which are also equipped with a plurality of Konvektorblechen 8 . In contrast to the above embodiments, however, the Konvektorbleche 8 are oriented parallel to the longitudinal axes 22 of the heating channels 5 here . Such a design is particularly advantageous when the respective heating channel 5 is oriented vertically, so that a convective air flow on the heating channel 5 can rise along.

In the one embodiment, in the Figures 14 and 15 is shown, the individual Konvektorbleche 8 are arranged one behind the other along the heating channel 5 . An assembly of Konvektorbleche 8 runs comparable to the assembly of Konvektorbleche 8 according to the embodiments described above according to the FIGS. 1 to 13 from. Thus, the Konvektorbleche 8 are each individually connected to a wall of the heating channel 5 , in particular punctiform or linear welded by means of ultrasonic welding. The sonotrode or sonotrodes move from Konvektorblech 8 to Konvektorblech 8 relative to the heating channel 5 parallel to its longitudinal axis 22nd

In the in the Figures 16 and 17 embodiment shown are arranged side by side on a heating channel 5 two parallel rows of convector plates 8 in a vertically extending to the longitudinal axis 22 of the heating channel 5 the width direction 38 of the heating channel. 5 By means of such an arrangement, heat transfer from the heating fluid to the room air of the room to be heated can take place more effectively, since a convective heat transfer surface formed by Konvektorblechen 8 over, for example, the embodiment according to the Figures 14 and 15 is significantly increased.

In principle, and independently of any other design of a radiator 1 according to the invention, it is conceivable to combine differently shaped convector laminates 8 on one and the same heating duct 5 with one another. Furthermore, the training elongated Konvektorbleche 8 conceivable whose length exceeds a width of a heating channel 5 significantly. Such Konvektorbleche 8 can extend perpendicular to the longitudinal axis 22 of the respective heating channel 5 and thus bridge a space between adjacent heating channels 5 . In this way, the Konvektorbleche 8 can be connected to a plurality of juxtaposed or superposed heating channels 5 . The inventive advantage of a free distance selection between adjacent Konvektorblechen 8 remains unchanged thereby.

LIST OF REFERENCE NUMBERS

1

radiator

2

Cross-sectional area

3

collecting duct

4

collecting duct

5

heating duct

6

leader

7

returns

8th

Konvektorblech

9

Base

10

leg

11

free end

12

distance

13

edge

14

corner

15

stiffening

16

vertical direction

17

The End

18

kink

19

initial region

20

end

21

distance

22

longitudinal axis

23

stiffening

24

kink

25

sonotrode

26

WeldingSpot

27

cavity

28

overlap area

29

Tool

30

arrow

31

Form-fitting point

32

arrow

33

length

34

Konvektorblech

35

stamp

36

cheek

37

longitudinal axis

38

width direction

39

connection kit

40

stiffening portion

41

corner

Claims (15)

Radiator (1) comprising at least two connection cross-sections (2), - At least two collecting channels (3, 4) and a plurality of heating channels (5), wherein by means of the connection cross-sections (2) of the radiator (1) to a flow (6) and a return (7) of a heating medium providing heating system can be connected,
wherein the heating channels (5) are fluidly connected to the collecting channels (3), so that the heating medium from one of the collecting channels (3) through the heating channels (5) can flow into the other collecting channel (3), w
obei at least one heating channel (5) at least indirectly in heat-transferring manner with at least one convector plate (8) cooperates,
at least one heating channel (5) having a multiplicity of individual convector sheets (8) distributed along a longitudinal axis (22) of the heating channel (5) and connected to a wall of the heating channel (5) in a force-transmitting manner,
wherein each of the convector sheets (8) comprises a base (9) in contact with the heating channel (5) and at least one leg (10) extending from the base (9) in a direction away from the heating channel (5)
characterized in that
the at least one limb (10) has a stiffening section (40) facing away from the base (9), a free end (17) of the stiffening section (40) being arranged on a side of the limb (10) facing away from the base (9) is. Radiator (1) according to claim 1, characterized in that the convector plate (8) in a transition region between the leg (10) and the stiffening portion (40) has a kink, wherein an angle (41) between the leg (10) and the Stiffening portion (40) in a range between 0 ° and 179 °, preferably in a range between 10 ° and 120 °. Radiator (1) according to claim 1 or 2, characterized in that longitudinal axes (37) of the bases (9) of the Konvektorbleche (8) of each Heizkanals (5) perpendicular or parallel to the longitudinal axis (22) of the associated Heizkanals (5) aligned are. Radiator (1) according to one of claims 1 to 3, characterized in that parallel to the longitudinal axis (22) of the respective heating channel (5) measured distances (12) between adjacent Konvektorblechen (8) at least two, each of two adjacent Konvektorblechen (8 ) formed Konvektorblechpaare are different. Radiator (1) according to one of claims 1 to 4, wherein at least two heating channels (5) each having a plurality of mutually independent Konvektorbleche (8), characterized in that parallel to the longitudinal axis (22) of the respective heating channel (5) measured distances (12) between adjacent Konvektorblechen (8) of a Heizkanals (5) differ from distances (12) between adjacent Konvektorblechen (8) of the other heating channel (5). Radiator (1) according to one of claims 1 to 5, characterized in that the at least one leg (10) at least one stiffener (15, 23), preferably a plurality of stiffeners (15, 23), which preferably in a High direction (16) of the leg (10) extend or extend. Radiator (1) according to one of claims 1 to 6, characterized in that the stiffening portion (40) at a free end (17) at least one kink (18), preferably a plurality of kinks (18). Radiator (1) according to one of claims 1 to 7, wherein longitudinal axes (37) of the bases (9) of the Konvektorbleche (8) are each aligned perpendicular to the longitudinal axis (22) of the respective heating channel (5), characterized in that a length (33) of the stiffening portion (40), which is measured starting from the heating channel (5) facing away from the upper end (17) of the leg (10) and parallel to the heating channel (5), a distance (12) of the associated Konvektorblechs (8 ) of the respective adjacent convector plate (8) exceeds, so that the stiffening portion (40) of the Konvektorblechs (8) with the adjacent Konvektorblech (8) overlaps. Radiator (1) according to one of claims 1 to 8, characterized in that the convector plates (8) cooperating with a respective heating channel (5) are directly connected to one another. Radiator (1) according to one of claims 1 to 7, wherein the bases (9) of the Konvektorbleche (8) are aligned parallel to the longitudinal axis (22) of the respective heating channel (5), characterized in that at least two Konvektorbleche (8) of the heating channel (5) in a direction perpendicular to the longitudinal axis (22) extending width direction (38) of the heating channel (5) considered at least partially overlap, preferably are arranged completely adjacent to each other. A method for producing a radiator (1), in particular one according to one of claims 1 to 13, wherein a plurality of individual Konvektorbleche (8) of a heating channel (5) successively in a mounting direction starting from an initial region (19) of the heating channel (5) in Direction of the initial region (19) opposite end portion (20) are connected to a wall of the heating channel (5)
characterized in that
at least two adjacent Konvektorbleche (8), preferably a plurality of each adjacent Konvektorblechen (8), after their individual connection with a respective heating channel (5) with each other in force transmitting manner are interconnected, in particular to form a positive connection. A method according to claim 11, characterized in that the connection is produced by means of a forming, wherein preferably at least one stiffening portion (40) of a Konvektorblechs (8) with a stiffening portion (40) of an adjacent Konvektorblechs (8) is pressed. A method according to claim 11 or 12, characterized in that longitudinal axes (37) of the bases (9) of the Konvektorbleche (8) are aligned perpendicular or parallel to the longitudinal axis (22) of the respective heating channel (5). Method according to one of claims 11 to 13, characterized in that adjacent Konvektorbleche (8) at least two, each two adjacent Konvektorbleche (8) comprehensive Konvektorblechpaare in mutually different distances (12, 21) are connected to the heating channel (5). Method according to one of claims 11 to 14, characterized in that the Konvektorbleche (8) by means of ultrasonic welding to the respective heating channel (5) are connected.

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