AT507286B1 - PANEL RADIATOR WITH AT LEAST ONE MATERIAL FLAT HEATING PLATE AND AT LEAST ONE CONVECTION BODY ARRANGED THEREFROM - Google Patents

Abstract

Plate heater (1) with at least one substantially planar heating plate (2) and at least one convection body (3) arranged thereon, which comprises a plurality of vertical channels (5, 5 '), wherein the channels (5, 5') have in particular a convex cross-sectional area ( F) and in a parallel to the heating plate (2) extending row (R1) are arranged side by side, wherein at least one convection body (3) at least two - in the direction normal to the main plane (E) of the heating plate (2) seen - successively arranged rows ( R1, R2, ...) of channels (5, 5 ') with a closed outline (U), wherein the channels (5, 5') are directly adjacent to each other.

Description

Austrian Patent Office AT 507 286 B1 2010-07-15

Description: [0001] The invention relates to a panel heater having at least one substantially flat heating plate and at least one convection body arranged thereon, which comprises a plurality of vertical channels, wherein the channels in particular have a convex cross-sectional area and are arranged next to one another in a row running parallel to the heating plate.

Such Plattenheizkörper are already known, which is to be increased by the combination of the heating plate with the convection body relative to the surface of the radiator heating power. In this case, for a given temperature difference between the room air and the heating plate, the amount of room air in the channels of the convector is essentially determined by the dimension of the channels.

For example, GB 1 273 141 A shows a heating / cooling body which has honeycomb-shaped channels.

US 5,606,341 shows both a heat sink and a radiator for a laptop.

DE 197 43 159 A1 shows a valve radiator having a Heizpaneel having a lower horizontal water channel and an upper horizontal water channel and the two horizontal water channels connecting vertical water channels.

On this basis, it has the object of the invention to improve a panel radiator of the type specified in terms of its heating power.

According to the invention, this object is achieved in that at least one convection body has at least two - viewed in the direction normal to the main plane of the heating plate - arranged one behind the other rows of channels with a closed outline, the channels are directly adjacent to each other.

The enlargement of the Konvektorabmessung seen in the direction normal to the main plane of the hotplate several consecutively arranged channels makes it possible to increase the enforced amount of room air through the convection body over the previously known panel radiators and thus to improve the heat output of the panel radiator. The optimization of the dimensions of the channels (cross-section and length) is a decisive factor for the amount of room air passed through the convection body.

According to one embodiment of the invention is in a panel heater with at least one substantially flat heating plate and at least one convection body arranged thereon, which comprises a plurality of vertical channels, wherein the channels in particular have a convex cross-sectional area and arranged side by side in a row extending parallel to the heating plate are provided, that the largest inner diameter of the channels between 20 mm and 32 mm and the smallest inner diameter of the channels is between 17 mm and 28 mm, which has proved to be favorable when the largest inner diameter of the channels between 22 mm and 26 mm and the smallest diameter of the channels is between 19 mm and 22 mm.

According to a preferred embodiment of the invention, the largest inner diameter of the channels in about 24 mm and the smallest diameter of the channels in about 20.8 mm.

In addition to the amount of permeated room air and the radiating surface of the convection has a significant influence on the heat output of the plate radiator.

This radiating surface depends in particular on the peripheral surface of the channels, wherein according to a first embodiment of the invention, it is provided that the cross-sectional area of the channels is convex. In other words, the channels have no or only very slight indentations to the inside, whereby the friction on the lateral surface of the channels can be prevented or kept small. [0013] According to another embodiment, the cross-sectional area is polygonal, and attempts by the applicant have shown that particularly optimal values can be achieved if the cross-sectional area is a preferably regular hexagon is trained.

Of course, similarly shaped cross-sectional areas are conceivable. Thus, an alternative embodiment of the invention provides that the cross-sectional area is substantially circular, wherein also elliptical or substantially circular cross-sectional areas allow the implementation of the inventive idea.

In terms of a further cost-saving production of the convection body provides a further embodiment of the invention, that a plurality of channels of at least one convection body, which have a closed outline, have a same cross-sectional area and / or the same cross-sectional shape, which turned out to be favorable has, if all channels of the at least one convection body having a closed outline, have a congruent cross-sectional area.

In other words, the convection body of a plurality of firmly connected, for example, welded channels, which are arranged in several rows one behind the other.

In order to vary the formation of the convection body diverse, is provided according to a further embodiment of the invention that a plurality of the channels of the at least one convection body are laterally open.

Conveniently, you will halve the channels with a closed scope, creating a simple and inexpensive production is possible.

Although by the arrangement of several rows of channels one behind the other, the depth of the convection body and thus the panel radiator would be arbitrarily increased, experiments by the applicant have shown that an optimized performance of the panel heater can not be achieved by the mere arrangement of many rows in a row. According to a further embodiment of the invention, it is therefore provided that the number of rows of channels arranged one behind the other in the direction normal to the main plane of the heating plate is less than or equal to 10.

Particularly in those panel radiators in which the convection body has laterally open channels, it has been found to be economical if the number of - viewed in the direction normal to the main plane of the hot plate - successively arranged rows of channels by the formula A = n / 2, where n is a natural number and 4 < n < 20 applies.

In this case, a particularly preferred embodiment of the invention, in which the amount of interspersed room air, the heat output of the panel radiator and the material used in a particularly economical relationship to each other, before, that the number of - in the direction normal to the main plane of the hot plate seen consecutively arranged rows of channels > 2.5, preferably exactly three.

The depth of the convection body thus depends on the diameter of the channels and the number of successively arranged rows of channels, as well as on the wall thickness of the channels, wherein an embodiment of the invention provides that the depth of the convection - in the direction normal to the main plane of the Hot plate seen between 40 mm and 200 mm. Particularly satisfactory values can be achieved, according to a preferred embodiment of the invention, when the depth of the convection body, viewed in the direction normal to the main plane of the heating plate, is between 50 mm and 70 mm. In this case, a particularly high heating power of a panel radiator can be achieved if the depth of the convection body - seen in the direction normal to the main plane of the heating plate - between 53 mm and 57 mm, especially in the successive arrangement of two and a half rows of channels. [0023] According to a further embodiment of the invention, it is provided that the panel heater has exactly one heating plate. In this case, it has turned out to be advantageous if a suspension device arranged inside the convection body is provided.

Of course, it is also conceivable that the panel radiator according to an alternative embodiment of the invention comprises two heating plates. In terms of a simple and cost-effective production, it has proven to be advantageous if both heating plates are connected directly on opposite sides with the same convection body.

As a result of the achieved with the invention increased throughput of room air through the convection and thus increased performance of the plate radiator, it is possible, as another embodiment provides the plate radiator according to the invention as a low temperature radiator for a lying between 30 ° C and 55 ° C. Forming flow temperature of the heating medium, wherein a cost-effective solution for the consumer can be achieved if the plate heater is designed as a low-temperature radiator for a lying between 35 ° C and 50 ° C flow temperature of the heating medium.

Further advantages and details of the invention are explained in more detail in the following description of the figures with reference to the embodiments illustrated in the drawings. 1 shows in perspective from the rear a first exemplary embodiment of a panel heater according to the invention, [0028] FIG. 2 shows in a sketch the principle of a panel heater according to the invention, [0029] FIGS. 3a to 3c show different embodiments with differently shaped panels

Convection bodies, Fig. 4a to 4d further embodiments of the invention with different fancy th and convection bodies and Fig. 5a to 5d and 6a to 6d th two other embodiments in different views Ansich.

The plate heater 1 shown in perspective in a rear view in FIG. 1 has a flat, substantially flat heating plate 2. Arranged directly on the heating plate 2 and firmly connected to this is a convection body 3, which comes to lie in the assembled state of the panel radiator 1 between the heating plate 2 and the mounting wall 4. The panel heater 1 shown has exactly one heating plate 2 and a convection body 3, wherein the convection body 3 on the side facing away from the heating plate 2 has recesses in which a suspension device 6 is arranged or formed by means of which the panel heater 1 attached to the mounting wall 4 becomes.

In Fig. 2, a arranged in front of a mounting wall 4 panel heater 1 is shown in a schematic diagram. The panel radiator 1, viewed from the front, a heating plate 2 and a convection body 3 firmly connected thereto. The convection body 3 comprises a plurality of rows Ri, R2, R3 of channels 5, 5 ', wherein the rows Ri, R2, R3 - considered normal to the main plane E of the heating plate 2 - are arranged one behind the other. In the illustrated embodiment, the extension of the rows R2, R3 - viewed normal to the main plane of the heating plate 2 - substantially corresponds to the inner circle diameter of the channels 5 while the extension of the row Ri, normal to the plane E of the heating plate 2 corresponds to the inner circle radius of the channels 5.

In the panel radiator 1 shown in Fig. 3a, the convection body 3 in turn has three rows, wherein the cross-sectional areas F of the channels 5, which have a closed circumferential line U, are formed as a regular hexagon. The convex cross-sectional area F is defined here by the smallest inner diameter d2, which corresponds to the inner circle radius of the hexagon, and the largest inner diameter di, which corresponds to the perimeter diameter of the hexagonal cross-sectional area.

The embodiment shown in Fig. 3b differs from the embodiment of FIG. 3a only in the form of the cross-sectional area F, which is not convex in Fig. 3b.

As in the embodiment according to FIG. 3a, the smallest inner diameter di and the largest inner diameter d2 also fulfill the features of claims 2 to 4.

Manufacturing this embodiment has proved to be particularly advantageous, wherein the formation of the channels 5, 5 'in a simple manner by the use of interconnected, preferably welded corrugated sheets, wherein the resulting channels 5, 5' have a substantially circular cross-sectional areas F, and thus achieve in terms of performance almost the values of channels with convex cross-sectional areas.

Another embodiment is shown in Fig. 3c. In this embodiment, the channels 5 are cylindrical and the channels 5 'formed semi-cylindrical, so that the smallest inner diameter d2 and the largest inner diameter di are the same size.

In Figures 4a to 4c panel radiator 1 are shown with convection bodies 3, wherein the channels 5 of the convection body 3 each have hexagonal cross-sectional areas and the channels 5 'are open at the side and the wall of the channels 5' in cross-section half of a regular Hexagon forms.

In the embodiment shown in Fig. 4a, the convection body 3 four successively arranged rows R ^ R2, R3, R4 of channels 5, 5 '. In this embodiment, the wall thickness of the channels 5, 5 'is 0.3 mm. The smallest inner diameter d2 corresponds to the inner circle diameter of the hexagon and is 17.3 mm and the largest inner diameter di, which corresponds to the perimeter diameter of the hexagon, is 20 mm. This results in a depth D for the convection body 3 of 53.7 mm. In addition, in this embodiment, the convection body 3 between two heating plates 2, 2 'is arranged.

In the embodiment according to FIG. 4b, the panel heater 1 has exactly one heating plate 2 on which a convection body 3 with three successive rows R 1, R 2, R 3 of channels 5, 5 'is arranged. The smallest inner diameter d2 in this embodiment is 28 mm, the largest inner diameter di 32.3 mm. With a wall thickness of 0.3 mm again for the honeycomb results in a depth D of 57.2 mm.

A preferred embodiment is shown in Fig. 4c. This differs from the embodiment 4b only by the different dimensions with respect to the inner diameter, wherein in the embodiment of Fig. 4c, the smallest inner diameter d2 is 20.8 mm, while the largest inner diameter di is 24 mm. The resulting overall depth D is 53.5 mm in this embodiment.

The embodiment of FIG. 4d differs from the embodiment of FIG. 4c only by the higher number of successively arranged rows R ^ R2, R3i R4, R5. As a result of the number of rows R-i, R2, R3i R4i R5 increased at constant diameters d1, d2, a depth D for the convection body 3 of 96.3 mm results for the panel heater 1 shown in FIG. 4d.

Applicant's experiments have shown that the best results in terms of performance and heat distribution are achieved when the channels 5, 5 'of the convection body 3 are formed with cross-sectional areas in the form of a regular polygon or approximately circular, wherein the largest Inner diameter d2 should be about 24 mm, which results in a longitudinal extent of the channels 5. 5 'of about 570 to 600 mm.

Fig. 5a shows a front view of a panel radiator 1, in which one sees only the front of the heating plate 2. 4.11

Claims (23)

Austrian Patent Office AT 507 286 B1 2010-07-15 [0046] FIG. 5b shows a rear view from which it can be seen particularly clearly that the convection body 3 has recesses or perforations in which suspension devices 6 for fastening the panel radiator 1 to the Mounting wall 4 are provided. As can be seen from FIG. 5d, the panel heater 1 is fastened to the mounting wall 4 on a retaining element 10 by means of the suspension device 6. In the lower region of the heating plate 2 of the panel radiator 1, a connection device 9 is provided, via which the panel radiator 1 is connected to lines 8 which guide the heating medium. The embodiment according to FIGS. 6a to 6d differs from the exemplary embodiment according to FIGS. 5a to 5d by the arrangement of two convection bodies 3 on the side of the heating plate 2 assigned to the mounting wall 4. The connecting device 9 is located centrally at the lower end on the rear side of FIG Heating plate 2 is arranged and, as shown in Fig. 6d, again connected to the floor 7 and the wall 4 guided lines 8. The holding member 10 is formed in this embodiment of a mounting unit to which the suspension devices 6 of the panel heater 1 can be fastened. The illustrated embodiments of panel radiators are of course not to be understood in a limiting sense, but just just individual examples of numerous ways to realize the inventive idea of a panel radiator with a convection body having at least two successively arranged rows of channels. 1. panel radiator with at least one substantially flat heating plate and at least one convection body arranged thereon, which comprises a plurality of vertical channels, wherein the channels in particular have a convex cross-sectional area and are arranged side by side in a parallel to the heating plate row, characterized in that at least one Convection (3) at least two - seen in the direction normal to the main plane (E) of the heating plate (2) - successively arranged rows (R ^ R2, ...) of channels (5, 5 ') having a closed outline (U) , wherein the channels (5, 5 ') are directly adjacent to each other. 2. panel radiator with at least one substantially flat heating plate and at least one convection body arranged thereon, which comprises a plurality of vertical channels, wherein the channels in particular have a convex cross-sectional area and are arranged side by side in a row extending parallel to the heating plate, in particular according to claim 1, characterized in that the largest inner diameter (di) of the channels (5, 5 ') is between 20 mm and 32 mm and the smallest inner diameter (d2) of the channels is between 17 mm and 28 mm. 3. panel radiator according to claim 2, characterized in that the largest inner diameter (d ^ of the channels (5, 5 ') between 22 mm and 26 mm and the smallest inner diameter (d2) of the channels (5, 5') between 19 mm and 22 mm. 4. panel radiator according to claim 2 or 3, characterized in that the largest inner diameter (di) of the channels (5, 5 ') in about 24 mm and the smallest inner diameter (d2) of the channels (5, 5') in about 20, 8 mm. 5. Plate heater according to one of claims 1 to 4, characterized in that the cross-sectional area (F) of the channels (5, 5 ') is convex. 6. panel radiator according to claim 5, characterized in that the cross-sectional area (F) is polygonal. 7. panel radiator according to claim 5 or 6, characterized in that the cross-sectional area (F) is formed as a preferably regular hexagon. 8. panel heater according to claim 5, characterized in that the cross-sectional surface (F) is formed substantially circular. 5/11 Austrian Patent Office AT 507 286 B1 2010-07-15 9. panel radiator according to one of claims 1 to 8, characterized in that a plurality of channels (5) of the at least one convection body (3) having a closed contour (U), a same cross-sectional area (F) and / or the same cross-sectional shape ( F). 10. panel radiator according to claim 9, characterized in that all the channels (5) of the at least one convection body (3) having a closed outline (U) have a congruent cross-sectional area (F). 11. Panel radiator according to one of claims 1 to 10, characterized in that a plurality of the channels (5 ') of the at least one convection body (3) are laterally open. 12. Panel radiator according to one of claims 1 to 11, characterized in that the number A of - viewed in the direction normal to the main plane (E) of the heating plate (2) - successively arranged rows (R ^ R2, ...) of channels ( 5, 5 ') is less than or equal to 10. 13. Plate radiator according to one of claims 1 to 12, characterized in that the number A of - seen in the direction normal to the main plane (E) of the heating plate (2) -together rows (R ^ R2, ...) of channels ( 5, 5 ') is determined by the formula A = n / 2, where n is a natural number and 4 < n < 20 applies. 14. Plate radiator according to one of claims 1 to 13, characterized in that the number A of - seen in the direction normal to the main plane (E) of the heating plate (2) -together rows (R ^ R2, ...) of channels ( 5, 5 ') is 2.5 pounds, preferably exactly 3. 15. Plate radiator according to one of claims 1 to 13, characterized in that the depth of the convection body (3) - seen in the direction normal to the main plane (E) of the heating plate (2) - is between 40 mm and 200 mm. 16. Plate heater according to claim 15, characterized in that the depth (D) of the convection body (3) - seen in the direction normal to the main plane (E) of the heating plate (2) - is between 50 mm and 70 mm. 17. Panel radiator according to claim 15 or 16, characterized in that the depth (D) of the convection body (3) - seen in the direction normal to the main plane (E) of the heating plate (2) - is between 53 mm and 57 mm. 18. Plate heater according to one of claims 1 to 17, characterized in that the plate heater (1) has exactly one heating plate (2). 19. Plate heater according to claim 18, characterized by a within the convection body (3) arranged suspension device (6). 20. Plate heater according to one of claims 1 to 17, characterized in that the plate radiator (1) has two heating plates (2, 2 '). 21. Panel radiator according to claim 20, characterized in that both heating plates (2, 2 ') are connected directly on opposite sides with the same convection body (3). 22. Use of a panel radiator according to one of claims 1 to 21 as a low-temperature radiator for a lying between 30 ° C and 55 ° C flow temperature of the heating medium. 23. Use of a panel heater according to claim 22 as a low-temperature radiator for a lying between 35 ° C and 50 ° C flow temperature of the heating medium. For this 5 sheets drawings 6/11