DE102011055819A1 - Solar cell module for solar cell module system, has one or multiple solar cell panels and solar cell panel supporting frame for supporting and orienting solar cell panel at acute angle to horizontal on base, particularly flat roof - Google Patents

Abstract

The solar cell module has one or multiple solar cell panels (10,11) and a solar cell panel supporting frame for supporting and orienting the solar cell panel at an acute angle to the horizontal (30) on a base, particularly flat roof (40) of a building. The lower side of the solar cell panel forms a sloping module roof surface which connects at module gable surface. An air gap (60) is formed between the solar cell panels. Independent claims are included for the following: (1) a solar cell module system with a rail profile; and (2) a method for installing a solar cell module.

Description

The invention relates to a solar cell module according to patent claim 1, to a solar cell module system according to patent claim 7, to a solar cell panel support frame according to patent claim 11 and to a method for sealing a solar module according to patent claim 12.

Every year a large number of new solar cell modules or solar cell panels are installed worldwide. A problem often encountered here is that the solar cell modules or solar cell panels are blown away from their installed position by wind and wind vortices. Many solar cells or solar cell panels are installed on documents or on flat roofs of buildings. Here it is often not possible or too laborious to connect the solar cell modules or solar cell panel to the substrate or to the flat roof with the base or the flat roof or to mount them to the substrate or the flat roof. Especially at the edge of a flat roof, but not only here, it comes to strong air vortices (so-called edge vortices or "bag swirls") that tear the solar cell panels from their specified arrangement or in the worst case even blow down from the roof or the solar cell panels together with their arrangement device, d. H. the solar cell module as a whole, can blow from the roof. Previously known provisions to prevent this substantially, are technically very complex and expensive or increase the roof load considerably.

The object of the invention is to provide a solar cell module by means of which a solar cell panel or a plurality of solar cell panels can be arranged and held securely on a support, in particular a flat roof of a building, even with stronger air movements or air vortices.

This object is achieved by a solar cell module according to claim 1, a solar cell module system according to claim 7, a solar cell panel support frame according to claim 11 and a method for sealing a solar cell module according to claim 12.

In particular, the object is achieved by a solar cell module comprising a solar cell panel or a plurality of solar cell panels and a solar cell panel support frame for supporting and aligning the solar cell panel or the solar cell panels at an acute angle to the horizontal on a substrate, in particular a flat roof of a building, wherein a bottom of each solar cell panel respectively forming an inclined module roof surface adjoining module gable surfaces, and in use a space bounded by the module gable surfaces and module roof surface or module roof surfaces, substantially air tightly closed and open to the substrate, except for an air gap at a vertex of the solar cell module that, as air flows past the air gap, a negative pressure builds up in the space through which the solar cell panel or the solar cell panels are attached to the base, in particular to the flat roof.

An advantage of this is that a pressure equalization between the area above the solar cell panel or the solar cell panels and the space between the solar cell panel or the solar cell panels and the substrate substantially over the air gap at the apex of the solar cell module, whereby a suction above the solar cell panel or the solar cell panels is compensated to a high degree by an internal suction. If a negative pressure forms above the air gap, for example as a result of air movement or air turbulence, this negative pressure sucks air through the air gap out of the space below the solar cell panel or the solar cell panels until the pressure has equalized. By the pressure equalization is substantially prevented that an upward force is created on the solar cell panels by air movements or air turbulence, which could remove the solar cell panels and / or the solar cell module from the pad. In addition, an advantage of this is that the solar cell panels in air movements at the air gap are stuck to the substrate due to the resulting negative pressure in the space. As a result, a technically simple and very secure arrangement and a secure holding the solar cell panel or solar cell panels and the solar cell module as a whole on the surface are achieved. A special weighting of the solar cell module or solar cell panel by weights is thereby essentially not necessary or only with light weights. The solar cell module can thus be arranged on documents that can not carry heavy weights.

The solar cell module may comprise two solar cell panels, wherein in use the space delimited by the module roof surfaces and the module gable surfaces of the two solar cell panels and opened to the substrate forms a common space substantially air-tight except for the air gap at the apex of the solar cell module. One advantage of this is that an even more secure attachment and arrangement of the two solar cell panels or the solar cell module is achieved on the substrate.

The air gap may be formed between the solar cell panels. As a result, an even safer arrangement and attachment of the Solar cell panels or the solar cell panels or the solar cell module reaches the pad.

In one embodiment, the gable surfaces substantially in the shape of a triangle. The advantage of this is that an even safer arrangement and attachment of the solar cell panel or the solar cell panels or of the solar cell module to the base are ensured.

In one embodiment, the solar cell module is designed such that the solar cell panel or the solar cell panels are each arranged at an angle of about 5 ° to about 20 °, in particular at an angle of about 10 ° to the horizontal. One advantage of this is that, particularly when the pad is oriented substantially parallel to the horizontal, the solar cell panels are oriented at an efficient angle to the sun's rays.

The solar cell module may sealing means, in particular sheets, preferably metal sheets, for substantially hermetically sealing the module gable surfaces and / or a region between the module roof surface or the module roof surfaces and the substrate in use and / or for substantially hermetically sealing a region between the solar cell module and a directly adjacent another solar cell module in use. As a result, technically simple and cost-effective, up to the air gap substantially airtight closure of the room is achieved.

The object of the invention is also particularly by a solar cell module system comprising a plurality of solar cell modules, in particular according to one of the preceding claims, comprising solar cell panels, which are arranged at an acute angle to the horizontal on a substrate, in particular a flat roof of a building, wherein at least some of the solar cell modules or Groups of solar cell modules in use, a space bounded by a module roof surface or a plurality of module roof surfaces each formed by a bottom surface of the respective solar cell panel, and module gable surfaces adjacent to the module roof surface or module roof surfaces, except for an air gap at a vertex the solar cell module is substantially hermetically sealed and open to the pad, so that builds when passing air at the air gap, a negative pressure in the space through which the solar cell panel or the Solarze Saw panel on the base, in particular on the flat roof, festsaugen. An advantage of this is that a pressure equalization takes place between the area above the solar cell panel or the solar cell panels and the space between the solar cell panel or the solar cell panels and the base exclusively via the air gap at the apex of the solar cell module, whereby a suction above the solar cell panel or the Solar cell panels is compensated to a high degree by an internal suction. If a negative pressure forms above the air gap, for example as a result of air movement or air turbulence, this negative pressure sucks air through the air gap out of the space below the solar cell panel or the solar cell panels until the pressure has equalized. By the pressure equalization is substantially prevented that an upward force is created on the solar cell panels by air movements or air turbulence, which could remove the solar cell panels and / or the solar cell module from the pad. In addition, an advantage of this is that the solar cell panels in air movements at the air gap are stuck to the substrate due to the resulting negative pressure in the space. As a result, a technically simple and very safe arrangement and the solar cell module as a whole and a secure retention of the solar cell panel or solar cell panels and the solar cell module as a whole on the substrate is achieved. A special weighting of the solar cell module or solar cell panel by weights is thereby essentially not necessary or only with light weights. The solar cell module can thus be arranged on documents that can not carry heavy weights. In addition, the lowest negative pressure occurs at the respective vertex of a solar cell module. At the lowest points of the solar cell module, i. H. at the transition point from a solar cell module to the immediately adjacent solar cell module, the negative pressure is not as low as at the apex of the respective solar cell module. As a result, by virtue of the lower negative pressure within the space between the solar cell panels and the base, which is lower than the external negative pressure, a (obliquely) downward force is produced on the solar cell panels or the solar cell module which presses the solar cell panels or the solar cell module against the base.

In one embodiment, in at least the solar cell modules disposed at an outer edge of the solar cell module system, in use, the space bounded by the module gable surfaces and the module roof surface or the module roof surfaces is substantially airtight and closed to the pad except for an air gap at the apex of the solar cell module open. The advantage of this is that especially at the points where particularly strong or frequent air turbulence arise, namely at the edge of the solar cell module system, which is often at the edge or in the vicinity of an edge of a support or on the edge of a flat roof, a particularly safe Arrangement and fastening of the solar cell panels and the Total solar cell module is achieved at the base.

In a further embodiment, at least some of the solar cell modules are arranged on a common rail running along a transverse direction and / or longitudinal direction of the solar cell modules, which extends perpendicular to the longitudinal direction or transverse direction of the solar cell modules, in particular a profiled rail. In this way, a network of rails can be created, whereby the forces are distributed in both horizontal directions on several solar cell modules. This leads to an even safer arrangement of the solar cell panels or of the solar cell modules as a whole on the substrate, since occurring air movements or air turbulence usually occur locally and do not affect a larger area extending over a plurality of solar cell modules.

In a further embodiment, at least some of the solar cell modules comprise sealing devices, in particular metal sheets, preferably metal sheets, for substantially airtight sealing of the module gable surfaces and / or a region between the module roof surface or module roof surfaces and the substrate during use and / or for substantially airtight sealing of a region between the solar cell module and at least one of the immediately adjacent solar cell modules in use. As a result, technically simple and cost-effective, up to the air gap substantially airtight closure of the room is achieved.

The object of the invention is in particular also achieved by a solar cell panel support frame for supporting and aligning a solar cell panel or a plurality of solar cell panels at an acute angle to the horizontal on a base, in particular a flat roof of a building, wherein in use forms a bottom of each solar cell panel each an oblique module roof surface which adjoins gable surfaces and, in use, a space bounded by the gable surfaces and the roof surface or surfaces except for an air gap at a vertex of the solar cell panel or at a vertex of one of the solar cell panels substantially airtight and toward the substrate is open, so that builds up when passing air at the air gap, a negative pressure in the space through which the solar cell panel or the solar cell panels on the base, in particular on the flat roof, festsaugen. An advantage of this is that a pressure equalization between the area above the solar cell panel or the solar cell panels and the space between the solar cell panel or the solar cell panels and the pad takes place exclusively via the air gap at the apex of the solar cell panel or at the apex of the solar cell panels, whereby a suction above the solar cell panel or the solar cell panels is compensated to a high degree by an internal suction. If a negative pressure forms above the air gap, for example as a result of air movement or air turbulence, this negative pressure sucks air through the air gap from the air Remove the space below the solar cell panel or solar cell panels until the pressure has equalized. By the pressure equalization is substantially prevented that an upward force is created on the solar cell panels by air movements or air turbulence, which could remove the solar cell panels or the solar cell panel support frame from the pad. In addition, an advantage of this is that the solar cell panels when air movements at the air gap augrund of the resulting negative pressure in the space to the base firmly. As a result, a technically simple and very secure arrangement and secure holding the solar cell panel or solar cell panels and the solar cell panel support frame are achieved on the pad. A special weighting of the solar cell panel support frame or the solar cell panels by weights is thus essentially not necessary or only with light weights. The solar cell panel support frame can thus also be arranged on documents that can not carry heavy weights.

According to the method, the object of the invention is also achieved by a method for constructing a solar cell module, wherein at least one solar cell panel is arranged at an acute angle to the horizontal on a base, in particular a flat roof of a building, such that a space which is occupied by at least one module roof surface, each formed by an underside of the respective solar cell panel, and is bounded by adjoining the module roof surface Modulgiebelflächen is sealed up to an air gap at a vertex of the solar cell module is substantially airtight and remains open to the pad, so that when passing air at A negative pressure builds up in the air gap through which the solar cell panel or the solar cell panels are attached to the base, in particular to the flat roof. It is achieved by this method that a pressure equalization takes place between the region above the solar cell panel or the solar cell panels and the space between the solar cell panel or the solar cell panels and the substrate substantially via the air gap at the apex of the solar cell module, whereby a suction above the solar cell panel or The solar panel is compensated to a high degree by an internal suction. If a negative pressure forms above the air gap, for example as a result of air movement or air turbulence, this negative pressure sucks air through the air gap out of the space below the solar cell panel or the solar cell panels until the pressure has equalized. By the pressure equalization is substantially prevented that an upward force is created on the solar cell panels by air movements or air turbulence, which could remove the solar cell panels and / or the solar cell module from the pad. In addition, an advantage of this method is that the solar cell panels are trapped in the air gap at the air gap due to the resulting negative pressure in the space at the base. As a result, a technically simple and very secure arrangement and a secure holding the solar cell panel or solar cell panels and the solar cell module as a whole on the surface are achieved. A special weighting of the solar cell module or the solar cell panels by weights is by means of this method essentially not necessary or only with light weights. The solar cell module can thus be arranged by means of this method also on documents that can not carry heavy weights.

In the method, sealing devices, in particular sheets, preferably metal sheets, can be arranged on the solar cell module for substantially airtight sealing of the space bounded by the module gable surfaces and by the module roof surface or module roof surfaces. By this method, the technically simple and cost-effective up to the air gap substantially airtight closure or sealing of the room is achieved.

The sealing devices may be attached to the solar cell module such that, in use, they airtightly seal the module gable surfaces and / or an area between the at least one module roof surface and the pad and / or a region between the solar cell module and at least one of the immediately adjacent solar cell modules. By this method, the technically simple and cost-effective up to the air gap substantially airtight closure or sealing of the room is achieved.

Preferred embodiments will be apparent from the dependent claims. The invention will be explained in more detail with reference to drawings of exemplary embodiments. Show here

1 a schematic side view of an embodiment of the solar cell module system according to the invention;

2 a schematic side view of another embodiment of the solar cell module system according to the invention;

3 a schematic side view and bottom view of the solar cell module system 1 ;

4 a schematic side view and bottom view of the solar cell module system 2 ;

5 a schematic side view of another embodiment of a solar cell module;

6 a schematic side view of a portion of an embodiment of two solar cell modules;

7 a schematic side view of part of another embodiment of a solar cell module;

8th a schematic side view of another embodiment of a solar cell module; and

9 a schematic plan view of a module gable surface with a drainage recess of another embodiment of the solar cell module according to the invention.

In the following description, the same reference numerals are used for the same and the same parts acting.

1 shows a schematic side view of an embodiment of the solar cell module system according to the invention 5 , The solar cell module system 5 includes in 1 six solar cell modules 10 . 11 , The solar cell modules 10 include in 1 two solar cell panels each 25 , The solar cell panels 25 are at an acute angle to the horizontal 30 arranged. The horizontal 30 corresponds to the course of the flat roof 40 or the surface of the flat roof 40 ,

The angle is preferably about 5 degrees to about 20 degrees, in particular about 10 degrees to the horizontal 30 , The two solar cell panels 25 a solar cell module 10 are symmetrical to each other, ie mirror image, arranged. An asymmetrical orientation to each other is conceivable. The solar cell panels 25 be from a solar cell panel support frame 29 worn and aligned, that in 1 only partially shown. The solar cell modules 10 are arranged in particular in the east-west direction, ie that the surface of the solar cell panels 25 each directed to the east or west. In this way, the sunlight falls on the solar cell panels 25 in a particularly efficient way. Other orientations of the solar cell panels 25 or the solar cell modules 10 with respect to the direction of the compass, for example to the south, are conceivable.

The solar cell modules 10 are on a flat roof 40 a building arranged. The flat roof 40 thus serves as a base on which the solar cell panels 25 be arranged and aligned. Flat roofs in this context are roofs that are less than ± 5 degrees to the horizontal 30 are inclined. It is also conceivable that the solar cell modules 10 are arranged on another base. The pad may for example also be a mat that lies on the ground, or even the ground itself. The pad should not exceed an angle of less than ± 5 degrees to the horizontal 30 be inclined. Larger angles to the horizontal, however, are conceivable.

The two outermost solar cell modules 10 in 1 have a room 50 below the solar cell panels 25 up, down to an air gap 60 at the top 65 of the solar cell module 10 ie at the highest point of the solar cell module 60 , is completed airtight. The highest point of the solar cell module 60 is defined as the location or area which, in use, is the greatest distance to the base or flat roof 40 having. Substantially hermetically sealed means that the space is sealed so tightly that at least for a short time a pressure differential between the room 50 and the ambient air can build.

The undersides of the solar cell panels 25 each form a module roof area 12 , To the module roof areas 12 adjacent module gable surfaces 15 limit a space 50 , The module gable surfaces 15 run in 1 parallel to the plane of the drawing and extend to the flat roof 40 , The module gable surfaces 15 Thus, as a rule, they run essentially perpendicular to the module roof areas 12 , While the module roof areas 12 the room 50 in 1 limit at least partially to the right and left, limit the modular gable surfaces 15 the room 50 forward and backward. The module gable surfaces 15 usually run parallel to each other. However, it is also conceivable that the (front and rear) module gable surfaces 15 are not aligned parallel to each other. The space 50 is to the flat roof 40 or open to the pad. In this way, there is an air connection between the solar cell panels 25 and the flat roof 40 or the pad.

For substantially airtight closure of the room 50 down to the air gap 60 has the (so-called completely sealed off) solar cell module 10 Sheets, in particular metal sheets 70 on top of that area between the solar cell panel 25 or the solar cell panels 25 and the roof 40 essentially complete airtight. The solar cell panels 25 themselves are essentially airtight. In place of sheets 70 So-called sealing rails are conceivable, which are below the lower edges of the respective solar cell module 10 for sealing the area between the solar cell module 10 and the pad are arranged.

The sheets or metal sheets 70 have corresponding recesses for the solar cell support frame 29 and the rails 28 on, with recesses of the sheets 70 the room 50 Airtight in use, so that the metal sheets 70 not the solar cell rack 29 or the rails 28 physically impede. The corresponding recesses for the solar cell support frame 29 or the rails 28 can be produced on site and already exist ex works.

An air exchange between the room 50 and the volume above the solar cell panels 25 can thus essentially only over the air gap 60 occur. A strong wind blows over the air gap 60 and thus forms at or above the air gap 60 a negative pressure, air is exclusively or at least substantially through the air gap 60 out of the room 50 pulled out. This results in the room 50 a corresponding equal negative pressure. There is thus a pressure equalization between the volume above the solar cell panels 25 and the room 50 , In this way it is prevented that one opposite to the air gap or above the solar cell panels 25 formed negative pressure the solar cell panels 25 or the solar cell module 10 pushed away from the flat roof. As a result, a particularly secure attachment or arrangement of the solar cell panels 25 and the solar cell modules 10 Overall, even with strong air currents or air vortices on the flat roof 40 reached.

It has been shown that the essentially airtight seal of the room 50 except for an air gap 60 at the top 65 This causes the pressure equalization between the top and bottom of the solar cell panels 25 only over the air gap 60 takes place, whereby the external suction can be compensated to a high degree by an internal suction. The bottom of the solar cell panel 25 is in the use of the base or the flat roof 40 facing side of the solar cell panel 25 , The top of the solar cell panel 25 is the side of the solar cell panel facing away from the pad in use 25 ,

As air vortex especially on the outer edge of the flat roof 40 occur at the outer edge of the solar cell module system 5 located solar cell modules 10 down to the air gap 60 completely sealed off, leaving the room 50 is completed essentially airtight. The adjoining solar cell modules 10 are only on the side facing the edge by a sheet 70 sealed; the module gable surfaces 15 are also here with sheets 70 sealed. At this point, ie at the second solar cell module 11 from the outer edge of the solar cell module system 5 are the occurring air currents or air swirls significantly lower. The module gable surfaces 15 of the second solar cell module 11 from the edge are also covered by sheets 70 essentially airtight finished.

The two outermost solar cell modules 10 in 1 are so-called bilaterally sealed solar cell modules 10 , The from the outer edge in 1 each second solar cell modules 11 are so-called unilaterally sealed solar cell modules 10 ,

The air gap 60 is located between the two solar cell panels 25 , However, it is also conceivable that the air gap 60 elsewhere relative to the solar cell panels 25 located.

The sheets 70 can also consist of other materials, in particular plastics or metals or metal alloys. It is also conceivable that instead of sheet metal other sealing devices, such as rubber, or the like may be used.

The sheets 70 can be fixed to the solar cell module system 5 , at the solar cell support frame 29 or on the solar cell panels 25 be arranged yourself or attached to this site or installed.

The vertex 65 of the solar cell module 10 is in this case identical to the apex of the solar cell panel 25 ,

The solar cell panels 25 have a tabular, in particular rectangular, shape. Other forms are conceivable.

2 shows a further embodiment of the solar cell module system according to the invention 5 , This is contrary to 1 not just the outermost solar cell module 10 completely down to the air gap 60 completed, but also from the outer edge of the flat roof 40 arranged second solar cell module 10 is up to an air gap 60 at the top 65 of the solar cell module 10 essentially airtight finished. For this purpose, in the two horizontal directions plates 70 arranged the area between the solar cell panels 25 and the flat roof 40 as well as the two modular gable surfaces 15 down to the air gap 60 essentially complete airtight.

3 shows a schematic side view or view from below of the solar cell module system 5 of the 1 , The solar cell module system 5 extends into 3 further to the left, ie only the upper, lower and right edges, but not the left edge of the solar cell module system 5 is shown. The solar cell module system 5 closes flush with the flat roof at its edge 40 from. However, it is also conceivable that between the edge of the solar cell module system 5 and the edge of the flat roof 40 a distance is. The solar cell module system 5 extends in a longitudinal direction 80 , in 3 upwards and in a transverse direction 82 , in 3 to the right.

In 3 you can clearly see that the solar cell modules 10 located on the edge of the flat roof 40 located, ie the solar cell modules 10 at the top and bottom of the solar cell module system 5 as well as on the right edge of the solar cell module system 5 in 3 completely down to an air gap 60 which is not shown in the view from below, are substantially hermetically sealed.

4 shows a schematic side view and bottom view of the solar cell module system 2 , Again, only the top, bottom and right edges, but not the left edge of the solar cell module system 5 shown. The two solar cell modules closest to the edge 10 are complete except for an air gap 60 at the top 65 completely completed or sealed off.

5 shows a schematic side view of another embodiment of a solar cell module according to the invention 10 , The solar cell module 10 in 5 includes only one solar cell panel 25 , The solar cell module 10 has several metal sheets 70 on that the room 50 below the solar cell panel 25 limit. In addition to the in 5 shown metal sheets 70 on the left and right side of the solar cell module 10 is also the module gable area 15 through a metal sheet 70 essentially airtight finished. Thus, only one air gap remains 60 at the top 65 of the solar cell module 10 to the movement of air between the limited space 50 and surroundings or ambient air. The vertex 65 of the solar cell module 10 is in this case identical to the apex of the solar cell panel 25 ,

6 shows a schematic side view of part of a further embodiment of two solar cell modules 10 , The solar cell panels 25 are by means of module clamps 26 on (in 6 not shown) solar cell panel support frame 29 attached. The solar cell panel support frame 29 is on the flat roof 40 arranged.

A substantially Z-shaped metal sheet 70 is arranged such that it between the module terminals 26 essentially parallel to the flat roof 40 runs and thus the area between the two module terminals 26 essentially airtight seals. The metal sheet 70 points further right in 6 a right-angled bend, leaving it below the module clamp 26 down to the flat roof 40 extends. Here is the metal sheet 70 then another piece essentially parallel to in the immediate vicinity of the flat roof 40 , This is the room 50 of in 6 solar cell module shown on the left 50 Completed in one direction substantially airtight, and also the room 50 of in 6 shown right solar cell module 10 is essentially airtight to both the flat roof 40 as well as to the immediately adjacent solar cell module 10 or its enclosed space 50 essentially airtight finished.

7 shows a schematic view of part of another embodiment of the solar cell module according to the invention 10 , Here are in contrast to 6 in 7 in place of a multiple bent metal sheet two straight metal sheets 70 arranged, each perpendicular to the flat roof 40 run. The metal sheets 70 each run between the module terminals 26 and the flat roof 40 , This will separate each room 50 below the solar cell panel 25 of in 7 left solar cell module 10 and the room 50 below the solar cell panel 25 of in 7 right arranged solar cell module 10 essentially airtight finished. The connection between the module terminals 26 and the respective solar cell panel 25 is also essentially hermetically sealed.

8th shows a schematic side view of another embodiment of a solar cell module according to the invention 10 , In 10 is the solar cell panel support frame 29 shown by means of which the solar cell panels 25 arranged and at an acute angle to the horizontal 30 be aligned. The solar cell panel support frame 29 includes, among other things, a (profile) rail 28 on which are the two outer module clamps 26 are arranged. In the middle of the rail 28 is arranged a vertically extending element, at its upper tip another module clamp 26 is arranged. This module clamp 26 is thus at the top 65 of the solar cell module 10 and also at the top of the solar cell panels 25 ,

The solar cell panels 25 are each between the top of the vertex 65 arranged module clamp 26 and the lower one directly on the rail 28 arranged module clamp 26 arranged. Between the two solar cell panels 25 is the air gap 60 trained in the in 8th represented cross section through the module clamp 26 is covered. The rail 28 is on feet 27 arranged on the flat roof 40 to store. Between the module terminals 26 that are directly on the rail 28 are arranged and the flat roof 40 are each metal sheets 70 arranged the room 50 which, among other things, through the solar cell panels 25 and the modular gable surfaces 15 is limited, substantially airtight in the horizontal direction. The metal sheets 70 that the module gable surfaces 15 Cover are in 8th Not shown.

Several solar cell modules 10 can on a common (profile) rail 28 be arranged. In this way, forces occurring on a solar cell module 10 transferred to several solar cell modules and thus distributed. The rails preferably extend in both horizontal directions, ie in two mutually perpendicular directions parallel to the flat roof 40 , and are connected to each other, so that a net-like structure results. In this way, forces can occur in both horizontal directions and thus on a larger number of solar cell modules 50 be distributed.

9 shows a schematic plan view of a module gable surface 15 with a drainage recess 90 a further embodiment of the solar cell module according to the invention 10 , This in 9 shown solar cell module 10 is also down to the air gap 60 at the ridge 65 essentially airtight finished. To ensure drainage is in the closed gable area 15 a rectangular drainage recess 90 provided, can drain through the particular rainwater. The drainage opening 90 is at the bottom, ie the roof 40 facing, end of the solar cell module 10 or the solar cell panel support frame 29 arranged substantially centrally. Other forms of drainage hole 90 , such as oval etc., are conceivable. Through the drainage recess 90 can air from outside in the room 50 between solar cell module 10 and roof 40 stream. However, the drainage recess is 90 fluidically essentially negligible in the sense that the drainage recess 90 is sufficiently small and thus forms a sufficiently large air resistance, whereby the air exchange between the room 50 between solar cell module 10 and roof 40 and the environment mainly or substantially across the air gap 60 at the top 65 of the solar cell module 10 takes place. Both opposite module gable surfaces 15 can each have such a drainage recess 90 exhibit.

Also on the outer corners of the solar cell module 10 There are small drainage holes (not shown) that allow low air exchange with the environment. At the bottom, ie the roof 40 facing, end of the module roof areas 12 of the solar cell module 10 or the roof surfaces of the solar cell panel support frame 29 Also, one or more small drainage holes (not shown) are arranged. These preferably have a size of approx. 18 mm · approx. 35 mm. Preferably, these drainage holes are directly adjacent to the rails 28 ,

Also through the drainage openings at the corners and / or at the lower end of the solar cell module 10 or solar cell panel support frame 29 can air from the environment in the room 50 between solar cell module 10 and roof 40 stream. However, this air exchange is largely negligible, so that in the context of this invention, even in the presence of such drainage openings of a substantially airtight seal of the room 50 between solar cell module 10 and roof 40 is spoken out or spoken. Even in the presence of these (small) drainage holes in the module gable surface (s) 15 , at the outer corners and / or at the lower end of the module roof surface (s) 12 finds the air exchange between the room 50 between solar cell module 10 and roof 40 and the environment substantially across the air gap 60 at the top 65 instead, causing a pressure difference between the room 50 and the environment, at least, can build.

The air gap preferably has a width of about 51 mm. Longitudinal 82 and transverse direction 80 have the solar cell modules 10 a distance of about 20 mm to about 25 mm. The solar cell panel cradles 29 have a height of about 173 mm. The support feet 27 have a height of about 40 mm. Usually located under the support feet 27 a building protection mat as a base. This can be arranged for example on a flat roof. The building protection mat usually has a thickness of about 6 mm. If the building mat as a base on the flat roof 40 is arranged, the distance between the lower edge of the solar cell module 10 and the roof of the flat roof 40 about 96 mm. As an alternative to the building protection mat, underlays are imaginable, those with the solar cell panel support frame 29 connected or not connected. Through the underlay we do the day / night dilation of the solar cell module 10 better supported without the solar cell module 10 or the solar cell panel support frame 29 begins to migrate. Preferably, there is the solar cell panel support frame 29 made of aluminum or an aluminum alloy. Other materials are conceivable.

The length of the rails 28 is about 12 m. The solar cell panels 25 have a size of about 1700 mm × about 1000 mm. The solar cell panel 25 are 6.8 mm thick. The extent of a solar cell module 10 , the two solar cell panels 25 carries, is in the longitudinal direction 80 about 1240 mm. The overall height of the solar cell module 10 is about 322 mm. Other sizes are conceivable.

LIST OF REFERENCE NUMBERS

5

 Solar cell module system

10

 Solar cell module (completely sealed off up to air gap)

11

 Solar cell module (isolated on one side)

12

 Module roof

15

 Module gable area

25

 solar cell panel

26

 module clamp

27

 support legs

28

 Rail (rail)

29

 Solarzellenpaneeltraggestell

30

 horizontal

40

 Flat roof of a building

50

 Space between solar cell module (s) and roof

60

 air gap

65

 vertex

70

 Sheet metal (sheet metal)

80

 longitudinal direction

82

 transversely

90

 drainage recess

Claims (14)

Solar cell module ( 10 ) comprising a solar cell panel ( 25 ) or several solar cell panels ( 25 ) and a solar cell panel support frame ( 29 ) for carrying and aligning the solar cell panel ( 25 ) or the solar cell panels ( 25 ) at an acute angle to the horizontal ( 30 ) on a substrate, in particular a flat roof ( 40 ) of a building, wherein an underside of the respective solar cell panel ( 25 ) each an inclined module roof area ( 12 ) formed on module gable surfaces ( 15 ) and in use a room ( 50 ), which depends on the module gable surfaces ( 15 ) and the module roof surface ( 12 ) or the module roof areas ( 12 ), except for an air gap ( 60 ) at a vertex ( 65 ) of the solar cell module ( 10 ) is substantially hermetically sealed and opened to the pad, so that when passing air at the air gap ( 60 ) a negative pressure in the room ( 50 ), through which the solar cell panel ( 25 ) or the solar cell panels ( 25 ) on the base, in particular on the flat roof ( 40 ). Solar cell module ( 10 ) according to claim 1, wherein the solar cell module ( 10 ) two solar cell panels ( 25 ), wherein in use the space ( 50 ), which depends on the module roof areas ( 12 ) and the module gable surfaces ( 15 ) of the two solar cell panels ( 25 ) is limited and open to the pad, a common except for the air gap ( 60 ) at the vertex ( 65 ) of the solar cell module ( 10 ) substantially airtight space ( 50 ). Solar cell module ( 10 ) according to claim 1 or 2, wherein the air gap ( 60 ) between the solar cell panels ( 25 ) is trained. Solar cell module ( 10 ) according to any one of claims 1-3, wherein the module gable surfaces ( 15 ) have substantially the shape of a triangle. Solar cell module ( 10 ) according to any one of claims 1-4, wherein the solar cell module ( 10 ) is designed such that the solar cell panel ( 25 ) or the solar cell panels ( 25 ) each at an angle of about 5 ° to about 20 °, in particular at an angle of about 10 °, to the horizontal ( 30 ) are arranged. Solar cell module ( 10 ) according to any one of claims 1-5, wherein the solar cell module ( 10 ) Sealing devices, in particular metal sheets ( 70 ), preferably metal sheets, for substantially airtight sealing of the module gable surfaces ( 15 ) and / or an area between the module roof area ( 12 ) or the module roof areas ( 12 ) and the substrate during use and / or for substantially airtight sealing of a region between the solar cell module (FIG. 10 ) and an immediately adjacent further solar cell module ( 10 ) in use. Solar cell module system ( 5 ) comprising a plurality of solar cell modules ( 10 ), in particular according to one of the preceding claims, comprising solar cell panels ( 25 ), which are at an acute angle to the horizontal ( 30 ) on a substrate, in particular a flat roof ( 40 ) of a building, wherein at least some of the solar cell modules ( 10 ) or groups of solar cell modules ( 10 ) in use a room ( 50 ), which is accessible from a module roof ( 12 ) or several module roof areas ( 12 ), each through an underside of the respective solar cell panel ( 25 ), and from to the module roof surface ( 12 ) or to the module roof areas ( 12 ) subsequent module gable surfaces ( 15 ), except for an air gap ( 60 ) at a vertex ( 65 ) of the solar cell module ( 10 ) is substantially hermetically sealed and opened to the pad, so that when passing air at the air gap ( 60 ) a negative pressure in the room ( 50 ), through which the solar cell panel ( 25 ) or the solar cell panels ( 25 ) on the base, in particular on the flat roof ( 40 ). Solar cell module system ( 5 ) according to claim 7, wherein at least those at an outer edge of the solar cell module system ( 5 ) arranged solar cell modules ( 10 ) in use the room ( 50 ), which depends on the module gable surfaces ( 15 ) and from the module roof surface ( 12 ) or the module roof areas ( 12 ), except for an air gap ( 60 ) at the vertex ( 65 ) of the solar cell module ( 10 ) is substantially airtight and opened to the pad. Solar cell module system ( 5 ) according to claim 7 or 8, wherein at least some of the solar cell modules ( 10 ) on a common along a transverse direction ( 82 ) and / or longitudinal direction ( 80 ) of the solar cell modules ( 10 ) perpendicular to the longitudinal direction ( 80 ) or transverse direction ( 82 ) of the solar cell modules ( 10 ) extends, extending rail ( 28 ), in particular a profiled rail, are arranged. Solar cell module system ( 5 ) according to one of claims 7 to 9, wherein at least some of the solar cell modules ( 10 ) Sealing devices, in particular metal sheets ( 70 ), preferably metal sheets, for substantially airtight sealing of the module gable surfaces ( 15 ) and / or an area between the module roof area ( 12 ) or the module roof areas ( 12 ) and the substrate during use and / or for substantially airtight sealing of a region between the solar cell module (FIG. 10 ) and at least one of the immediately adjacent solar cell modules ( 10 ) in use. Solar cell panel support frame ( 29 ) for supporting and aligning a solar cell panel ( 25 ) or several solar cell panels ( 25 ) at an acute angle to the horizontal ( 30 ) on a substrate, in particular a flat roof ( 40 ) of a building, wherein in use an underside of the respective solar cell panel ( 25 ) each have a sloping roof surface ( 12 ) formed on gable surfaces ( 15 ) and in use a room ( 50 ), which depends on the gable surfaces ( 15 ) and from the roof area ( 12 ) or the roof surfaces ( 12 ), except for an air gap ( 60 ) at a vertex ( 65 ) of the solar cell panel ( 25 ) or at a vertex ( 65 ) one of the solar cell panels ( 25 ) is substantially hermetically sealed and opened to the pad, so that when passing air at the air gap ( 60 ) a negative pressure in the room ( 50 ), through which the solar cell panel ( 25 ) or the solar cell panels ( 25 ) on the base, in particular on the flat roof ( 40 ). Method for constructing a solar cell module ( 10 ), wherein at least one solar cell panel ( 25 ) at an acute angle to the horizontal ( 30 ) on a substrate, in particular a flat roof ( 40 ) of a building, arranged so that a room ( 50 ) of at least one module roof area ( 12 ), each through an underside of the respective solar cell panel ( 25 ), and from to the module roof surface ( 12 ) subsequent module gable surfaces ( 15 ), except for an air gap ( 60 ) at a vertex ( 65 ) of the solar cell module ( 10 ) is substantially airtight sealed and remains open to the pad, so that when passing air at the air gap ( 60 ) a negative pressure in the room ( 50 ), through which the solar cell panel ( 25 ) or the solar cell panels ( 25 ) on the base, in particular on the flat roof ( 40 ). Method according to claim 12, wherein sealing devices, in particular metal sheets ( 70 ), preferably metal sheets, on the solar cell module ( 10 ) for substantially airtight sealing of the room ( 50 ), which depends on the module gable surfaces ( 15 ) and from the module roof surface ( 12 ) or the module roof areas ( 12 ) is limited. The method of claim 13, wherein the sealing means on the solar cell module (16). 10 ) in use, the module gable surfaces (in 15 ) and / or an area between the at least one module roof area ( 12 ) and the substrate and / or an area between the solar cell module ( 10 ) and at least one of the immediately adjacent solar cell modules airtight seal.

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