DE202019104195U1 - Roof element for building roofs - Google Patents

Abstract

Roof element for building roofs (1), comprising an elongate, extruded multi-chamber hollow profile, which is provided with an upper side (7), a lower side (8) and side walls (9, 10, 11) extending therebetween, solar elements being arranged on the upper side (7) (6) are provided and at least one of the chambers (12,13) of the multi-chamber hollow profile is designed as a cooling channel, wherein the multi-chamber hollow profile in the region of its underside (8) and, if necessary, parts of the side walls (9,10) with insulation means (16,22) can be brought into operative connection.

Description

The innovation concerns a roof element for building roofs.

Of the DE 10 2007 027 984 A1 is a profile made of a light metal material with at least one, for transporting heat-conducting media to buildings, on the profile running pipe element known, the profile has a roof plate and one side of these projecting, between them defining a space between foot profiles and wherein within the space at least one Pipe element is integrally formed on the roof panel.

The DE 10 2007 047 693 A1 discloses a facade or roof element for attachment to a building with an outer wall, an inner wall and a, arranged between the outer and the inner wall thermal latent storage, wherein the outer wall is formed as a transparent thermal insulation and wherein a fluid-carrying line is arranged in the latent memory , The latent memory comprises at least one thermally conductive, open-pored lightweight board, in which a storage medium, preferably a phase-change material (PCM) is contained and wherein the lightweight board has thermal contact with the fluid-carrying line.

The CH 707930 B1 discloses a façade or roof element including one or more photovoltaic solar cells or modules. With the solar cells or - modules at least one thermally conductive formed, designed to dissipate in the or the solar cells or modules resulting heat formed heat-conducting layer. Furthermore, a thermal insulation is provided, which is arranged on the solar cells or modules opposite surface of the heat-conducting layer.

The aim of the innovation object is to provide an alternative roof element that is simple in construction and can be used universally not only for new buildings, but also for roof renovations.

In addition, a building roof, including such a roof element to be provided.

Finally, a building is to be provided which is provided with such a building roof, comprising a plurality of continuous, mutually operatively connected roof elements.

This object is achieved by a roof element for building roofs, comprising an elongated, extruded multi-chamber hollow profile, which is provided with a top, a bottom and between them extending side walls, wherein on the top solar elements are provided and at least one of the chambers of the multi-chamber hollow profile is designed as a cooling chamber , Wherein the multi-chamber hollow profile in the region of its underside and, if necessary, parts of the side walls with insulating means in operative connection can be brought.

Advantageous developments of the roof element according to the invention can be found in the associated subclaims.

The object is also achieved by a building roof, covered with roof elements according to one of claims 1 to 18.

Finally, the object is also achieved by a building, in particular a warehouse, provided with a building roof according to claim 19.

Advantageously, the building is provided at least with a storage option for the electricity generated by the solar elements.

The multi-chamber hollow profile may consist of aluminum or an aluminum alloy.

Alternatively, it is also possible to use a plastic profile, in particular of thermoplastic materials. In plastics processing, the term extruding is referred to as extrusion.

In general, the term extrusion refers to pressure forming standards. Advantages of extrusion are in particular the possibility to produce profiles in complicated shapes. The extrusion is usually used to produce continuous material that can be separated if necessary in the desired length. Thus roof elements can be generated at the innovation object, which are adapted to the respective length of the building roof to be occupied therewith. Building roofs can be present in horizontal or inclined form.

The top of the used reaching, for example, releasably connectable by a connector roof elements is covered with solar panels. In this case, the solar elements, if necessary solvable, i. be brought into operative connection by a screw with the surface of the respective roof element, if necessary over its entire length.

Alternatively, it is also possible to apply the solar elements by gluing on the top of the roof elements.

The preferred solar cells are bifacial PV solar cells. Bifacial solar cells are two-sided cells, which can use the incident light not only on the front, but also on the back. A second glass pane on the rear module side ensures that indirect light is transmitted to the cells from behind by reflected rays of the sun. Alternatively, this effect can also be generated by the bare surface of the Al extruded profile, so that the glass pane is dispensable. By this measure, the respective module achieves a higher efficiency.

Various measures can be provided to dissipate the heat used below the solar cells.

One measure is seen by integrally formed on the multi-chamber hollow profile Wärmeleitbleche, which are preferably arranged in the chamber used for cooling purposes of the multi-chamber hollow profile.

Alternatively or additionally, it is also possible to provide pipelines which are filled with a suitable coolant which is circulated. Here, if necessary, suitable heat exchangers or the like are used.

In addition, it is possible to provide a so-called latent heat storage (also phase change or PCM memory). Latent heat storage devices are characterized by storing a large part of the thermal energy supplied to them in the form of latent heat. Latent heat storage devices work by exploiting the enthalpy, thermodynamic change of state of a storage medium. A common principle here is the utilization of the phase transition solid-liquid and vice versa.

In analogy to CH 707930 B1 can the renewal contemporary roof element in the region of its underside releasably or firmly be brought into operative connection with insulation means. If necessary, the insulation means can fill at least one of the chambers of the multi-chamber hollow profile.

If a stronger insulation is desired, if necessary, a correspondingly thick insulating layer can also be provided on the underside of the multi-chamber hollow profile.

In order to ensure optimal heat dissipation from the range of solar elements, an active control of the cooling is provided.

As already mentioned, selbige can be perceived by the cooling channels with a suitable coolant.

In addition, alternatively or additionally, an air cooling can be used, wherein at least in the region of one of the ends of the roof element a controllable flap is provided.

For occupancy of a building roof in horizontal or inclined form, a plurality of the respective surface of the roof of the building to be occupied corresponding roof elements in releasable, in particular plug-in form are brought into operative connection with each other. The respective plug-in or click connection is to be designed so that following the occupancy of the respective building roof no water ingress can take place between the individual roof elements.

New roof elements can thus be factory provided with appropriate active or passive cooling systems, the solar cells and thermal insulation, so that then on the site a problem-free installation of the roof element can be done.

Each roof element has a groove at least in its lower portion. Here, via suitable fastening means, e.g. Gutters profiles are introduced and so releasably connected to the respective roof element.

• - Luft- und/oder Wasserkanäle eingebracht sind,
• - Solarelemente vorgesehen sind,
• - eine Wärmedämmung gegeben ist.

By renewal roof element a multi-functional roof element is formed in which

• - Air and / or water channels are introduced,
• - Solar elements are provided,
• - A thermal insulation is given.

• - Entfall von Mittelfetten, Sparren, Konterlattung, Unterspannbahnen, Dachpfannen,
• - Eliminierung der Gefahr von Sturmschäden,
• - Reduzierung des Montageaufwandes und der Montagezeit.

The following advantages are given over conventional roof tiles with roof tiles:

• - elimination of medium grease, rafters, counter battens, underlays, roof tiles,
• - Elimination of the risk of storm damage,
• - Reduction of assembly costs and assembly time.

• 1 Prinzipskizze eines geneigt verlaufenden Gebäudedachs, belegt mit neuerungsgemäßen Dachelementen;
• 2a und 2b Unterschiedliche Darstellungen eines neuerungsgemäßen Dachelements im Querschnitt;
• 3 Räumliche Darstellung eines einzelnen neuerungsgemäßen Dachelements;
• 4 Räumliche Darstellung des Dachelements gemäß 3 in seiner Vorderansicht;
• 5 Räumliche Darstellung eines Teilbereichs des neuerungsgemäßen Dachelements mit angedeutetem gesteuertem Kühlsystem;
• 6 Prinzipielle Darstellung eines Gebäudes mit Wärmeleittechnik;
• 7 Prinzipielle Darstellung eines Dachelements.

The object of the invention is illustrated by means of an embodiment in the drawing and will be described as follows. Show it:

• 1 Schematic diagram of a sloping building roof, covered with renewal roof elements;
• 2a and 2 B Different representations of a renewal roof element in cross section;
• 3 Spatial representation of a single renewal roof element according to the invention;
• 4 Spatial representation of the roof element according to 3 in his front view;
• 5 Spatial representation of a portion of the roof element according to the invention with indicated controlled cooling system;
• 6 Basic representation of a building with thermal conduction technology;
• 7 Basic illustration of a roof element.

1 shows as a schematic diagram of a building roof 1 , For example, a hall roof, in an inclined shape. You can see purlins 2 , Further indicated are several renewal roof elements 3 , in juxtaposed form on the purlins 2 rest and are firmly connected with the same. Furthermore, a gutter profile can be seen 4 , which is in operative connection with the lower area 5 the roof elements 3 stands. The length L the used reaching roof elements 3 corresponds to the desired length of the respective building roof 1 , The roof elements 3 are formed by elongated, extruded multi-chamber hollow profiles, which will be explained in more detail below. One each roof element 3 is with here only indicated solar elements 6 provided, which will also be explained later. The roof elements 3 consist in this example of an Al alloy and are designed as multi-chamber hollow profiles (extruded profiles).

Due to the high intrinsic stability Mittelpfetten, rafters, counter battens, roofing membranes, roof tiles come in dispensing. Similarly, the Aufdachgestell deleted for solar installation.

The 2a and 2 B show the renewal roof element 3 in cross section. The structure of both figures is identical, so that the same components are provided with the same reference numerals. The extruded roof element designed as a hollow chamber profile 3 should consist in this example of an aluminum alloy. The roof element 3 has a top 7 , a bottom 8th as well as side walls 9 . 10 . 11 on. The side walls 9 and 10 in this case form the outer side walls of the roof element 3 , The roof element shown here 3 has four chambers 12 . 13 . 14 . 15 on. Depending on the application, if necessary, more chambers can be provided. On the surface 7 of the roof element 3 are in this example bifacial solar cells 6 glued. In 2a it can be seen that the chambers 14 and 15 with a damping material 16 Styrofoam, glass or rock wool, PU foam or the like are filled in, in particular foamed.

The chambers 12 . 13 form so-called cooling channels, through which through the solar elements 6 generated heat can be transported directly or indirectly. In the roof element 3 are in the chambers 12 . 13 protruding heat-conducting elements 17 formed. To several of the roof elements 3 to be able to position next to each other on the roof surface to be occupied, have the outer side walls 9 . 10 profiled approaches 18 . 19 on, so that the individual roof elements can be brought into operative connection with each other by a plug-in or click connection. As a result of the chosen approach form is avoided that incoming water can penetrate into the building roof. In this example, both are at the top 7 as well as at the bottom 8th groove 20 . 21 molded, which can serve to accommodate, for example, gutters or the like. This is described in more detail in the following figures.

As already indicated corresponds 2 B the structural design of the 2a , Dashed lines indicate another insulating body 22 that with the bottom 8th of the roof element 3 connected is.

Alternatively, of course, the chambers could 14 . 15 be provided in enlarged form. Such a measure is useful if an increased thermal insulation is required.

3 shows a renewal roof element 3 in perspective, corresponding to the 2a or 2 B can be constructed. The chambers are recognizable 12 . 13 . 14 . 15 , the bifacial solar elements 6 as well as a gutter profile 4 as it already is in 1 is indicated. The gutter profiles 4 are via so-called gutter irons 23 held, in turn (not visible here) in the grooves 21 ( 2a) are guided and fixed.

Only indicated are air ducts 24 , with the chambers formed as cooling channels 12 . 13 are in operative connection and are, for example, in operative connection with a heat exchanger or a heat pump.

4 shows the roof element 3 according to 3 , in his front view. The gutter element is recognizable 4 including gutter iron 23 , Here is shown in more detail how the free end area 25 of guttering iron 23 in the groove 21 the bottom 8th is guided. Not shown fasteners can the end area 25 in the groove 21 be releasably attached.

5 shows a further example of a renewal roof element 3 in perspective view. The roof element 3 is - as previously described - with bifacial solar cells 6 occupied over a large area. The chambers are recognizable 12 . 13 . 14 . 15 , Alternatively to the 2a and 2 B is in the chambers 12 . 13 a piping system 26 Molded for holding and guiding a coolant or PCM serves. Due to the controlled cooling system introduced here, heat can be generated below the solar elements 6 arises, be discharged, which is explained in more detail in the next figure.

6 shows a schematic diagram of a building 27 including a building roof 1 formed by a plurality of successive renewal roof elements 3 , As in 5 shown, include the roof elements 3 here also formed pipelines 26 that with a heat exchanger system 28 in operative connection. Excess energy from the roof elements 3 for example, a heating system 29 be supplied.

7 shows a schematic diagram of a portion of the renewal roof element according to the invention 3 , To generate a controlled cooling of the solar elements not shown here is in one of the end 30 of the roof element 3 a controllable flap 31 provided around a pivot point 32 can be partially or completely pivoted around, so that one, adapted to the particular temperature below the solar cell air flow can be generated. The heated air can - as already mentioned - a heat exchanger or the like are provided.

LIST OF REFERENCE NUMBERS

1

building roof

2

purlin

3

Roof element (multi-chamber hollow section)

4

Gutter profile

5

lower area roof element

6

Solar element (bifacial)

7

Top roof element

8th

Bottom roof element

9

Side wall

10

Side wall

11

Side wall

12

chamber

13

chamber

14

chamber

15

chamber

16

insulation

17

thermally conductive element

18

profiled approach

19

profiled approach

20

groove

21

groove

22

insulating body

23

gutter iron

24

Air duct

25

End section gutter iron

26

pipeline

27

building

28

heat exchangers

29

Heating system

30

lower end area roof element

31

controllable flap

32

fulcrum

L

Length of roof element

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007027984 A1 [0002]
• DE 102007047693 A1 [0003]
• CH 707930 B1 [0004, 0023]

Claims (21)

Roof element for building roofs (1), comprising an elongated, extruded multi-chamber hollow profile, which is provided with a top side (7), a bottom side (8) and side walls (9, 10, 11) extending therebetween, solar elements being on the top side (7) (6) are provided and at least one of the chambers (12,13) of the multi-chamber hollow profile is designed as a cooling channel, wherein the multi-chamber hollow profile in the region of its underside (8) and, if necessary, parts of the side walls (9,10) with insulation means (16,22) can be brought into operative connection. Roof element after Claim 1 , characterized in that the solar elements (6) are detachably connected to the upper side (7) of the multi-chamber hollow profile. Roof element after Claim 1 , characterized in that the solar elements (6) are connected to the top (7) of the multi-chamber hollow profile by gluing. Roof element according to one of Claims 1 to 3 , characterized in that the solar elements (6) are designed as bifacial solar cells. Roof element according to one of Claims 1 to 4 , characterized in that the solar elements (6) extend substantially over the entire length (L) of the upper side (7) of the multi-chamber hollow profile. Roof element according to one of Claims 1 to 5 , characterized in that at least provided as a cooling channel chamber (12,13) is provided with integrally formed heat conducting elements (17). Roof element according to one of Claims 1 to 6 , characterized in that at least as a cooling channel (12,13) formed chamber with molded channels or pipes (26) for receiving and guiding a coolant, respectively PCM, is provided. Roof element according to one of Claims 1 to 7 , characterized in that at least one further chamber (14,15) in the region of the underside (8) of the multi-chamber hollow profile for receiving the insulation means (16,22) is provided. Roof element according to one of Claims 1 to 7 , characterized in that the insulation means (22) with the underside (8) of the multi-chamber hollow profile is releasably or firmly brought into operative connection. Roof element according to one of Claims 1 to 9 , characterized in that for the removal of heat from the region of the solar elements (6) in the region of the associated cavity (12,13) is a controlled cooling device for the respective cooling medium can be used. Roof element according to one of Claims 1 to 10 , characterized in that controllable flaps (31) are provided in at least one of the end regions (30) of the multi-chamber hollow profile. Roof element according to one of Claims 1 to 11 , characterized in that the multi-chamber hollow profile made of aluminum or an aluminum alloy. Roof element according to one of Claims 1 to 11 , characterized in that the multi-chamber hollow profile made of plastic, in particular of thermoplastic materials. Roof element according to one of Claims 1 to 13 , characterized in that the length (L) of the multi-chamber hollow profile corresponds substantially to the length of the building roof to be occupied therewith. Roof element according to one of Claims 1 to 14 , characterized in that for the detachable juxtaposition of a plurality of roof elements (3) the respective multi-chamber hollow profile in the region of its outer side walls (9,10) with profiled lugs (18,19) is provided. Roof element according to one of Claims 1 to 15 , characterized in that the individual roof elements (3), seen over their length (L), are releasably engageable with each other by a plug-in or click connection. Roof element according to one of Claims 1 to 16 , characterized in that the multi-chamber hollow profile is provided at least in the region of its underside (8) with grooves (21) for receiving fastening means. Roof element according to one of Claims 1 to 17 , characterized in that in the lower end region (30) of the respective roof element (3), the groove (21) for laying gutters (4) is provided. Building roof covered with roof elements (3) according to one of Claims 1 to 18 , Buildings, especially warehouses, provided with a building roof (1) Claim 19 , Building after Claim 20 equipped with storage means (28) for electricity generated by the solar elements (6).

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