DE202009009244U1 - Modular light-weight carrier for mounting photovoltaic modules and corner element to its lateral termination - Google Patents

Abstract

Modular light module [MLT] (1) for mounting photovoltaic modules [PV modules] (7) and corner elements (17) for terminating a row mounted modular light support (1) in left and right position, in particular for installation on flat roofs with insufficient roof pitch for optimal use of solar radiation, consisting of Ethylenpolyurethanschaum [EPS] and preferably with a weather-resistant Oberflächenversieglung and in cross-section to a non-equilateral triangle, characterized in that the upward longer side of the aforementioned triangular cross-section as a long leg of the modular light developer (1) a groove (8), wherein the front leading edge comes close to a first mounting element (3) for an applied photovoltaic module (7) of a semicircular formation and the rear shorter leg, starting from a second fastener (2), which in the highest P Osition of the module light developer (1), on its outwardly and upwardly facing surface has an elongated, large-wave down to the footprint expiring shape (11), in the footprint (18) of the Modulleichtbauträges (1) longitudinally and transversely ...

Description

The The invention relates to a lightweight module carrier for the assembly of photovoltaic modules and a corner element to his lateral conclusion, especially on flat roofs or Roofs with insufficient roof pitch for an effective use of solar radiation.

The Extraction of solar power is becoming increasingly important for the industrial sector and private use more and more. The requirements for an optimal alignment of, for example, in series solar power modules However, they are not always given when it comes to an inadequate Roof pitch goes. In order for such unsuitable roof areas, mostly flat roofs or roof areas up to 5 ° inclination Nevertheless, it can be occupied with modules required, suitable light and dimensionally stable auxiliary devices propose that the solar panels in a defined slope and fix the situation on site. The prior art entails this Problem were identified and there were appropriate substructures developed.

exemplary should therefore be discussed below solutions.

According to DE 10 2005 030 039 A1 a lightweight substructure has been proposed for mounting photovoltaic modules on flat roofs without additional load. Here supportive elevations are provided in the front and rear region of the module to be supported, which are in turn connected to rail associations, wherein the lowermost rail layer rests loosely on the roof surface. For discharging under the / the module / -e flowing wind pressure Windableitbleche are provided, with lateral openings remain, causing the wind load can flow.

Possibly producible negative pressure by means of the existing baffles to the Pressure of serving as fasteners metal rails raise the roof area, allowing a lifting of the not possible as a "disk" to understand construction should be.

In spite of the use of predominantly light metal elements for support the modules and other metal fasteners provides the Construction a considerable weight, so the statics of a Dachgebälks the construction can set limits.

With DE 20 117 280 U1 is a module of one or more photovoltaic and / or other solar elements known, which is used for use on flat roofs. It is a block-shaped body made of thermal insulation material, on the upper side of a fastening device for the attachment of one or more photovoltaic module / s is mounted. The main body is glued over the entire surface with the roof surface, so that no breakthroughs must be made by the roof skin. The monoblock body can also be mechanically connected to a flat roof by means of so-called "plate" dowels. However, then connection seals of the entire monoblock body itself and with the roof skin are required, which entails a considerable installation effort. Due to the compact shape of the monobloc body, which dissipates only a small amount of wind load, and the accumulation of precipitation water thereon, this solution has disadvantageous utility value properties.

from time to time are also elevations of solar thermal elements or To observe photovoltaic modules, which are the surface of a Flat roofs have an angle of> 90 °. Such constructions are only in wind-protected areas suitable and would be here in mehrreihiger lineup lead to shadowing of underlying elements.

Consequently has become clear that looking for a new solution must be next to one as light in weight as possible Support structure to comply with the requirements of statics a roof surface, improved functions of the derivative of Wind pressure and precipitation offers.

It is therefore an object of the invention to provide a modular light construction carrier (MIT) made of a plastic of firm consistency, which may also be surface treated and provided with recesses for receiving peripheral functional elements for electrical connections and - components and for placing on a flat roof on-laid and / or fixed light metal profiles propose that in the region of the lower and upper mounting of a photovoltaic module has insertable plastic strip in rectangular cross-section, in which via bolts with internal thread and mounting clamps a photovoltaic module receives a secure fit, the Modulleichtbauträger further bottom recesses for the passage of rainwater has and he in the front lower area , in about semicircular shape, is rounded and at the higher rear exterior area large wave expires towards the roof surface. To further reduce weight, the module lightweight developer in the lower rear area over its entire width a tunnel-like substantially semicircular recess, which can also serve to accommodate electrical / electronic components and / or cables. The linear arrangement of the modular light developer on a flat roof surface designed and / or fixed light metal profiles should also be laterally by means of streamlined ge shaped corner elements to be protected from wind attack.

The The object of the invention is achieved as follows, with respect to the fundamental innovative thought on the protection claim 1 is referenced. The further embodiment of the invention results from the claims 2 to 5.

The following Additional information on the teaching of the invention is required.

One approx. 20 ° from front to back, rising monobloc, consisting of UV-resistant and precipitation-resistant plastic and in particular provided with a surface treatment, which additionally protects against weather conditions, has an approximately triangular cross section of a non-equilateral Triangle, with the block on the upturned longer Side of the triangle for ventilation of the here resting Photovoltaic module has a distinctive groove, in addition to the recording other technical facilities also elements where appropriate can absorb for ballasting. The leading edge of a resulting elongated Part of the module lightweight developer is up to rounded to the lower edge for the photovoltaic module trained and the rear section falls from the highest Point of the module unbalance carrier in a wide-swung Wavefrom towards a roof surface. In the floor area the Modulleichtbauträgers are continuous recesses longitudinal and transversal in U-shape and in partially different Width introduced, which serve to precipitation bottom side on the other hand a positive connection with the crosswise on a roof surface in a system designed light metal profiles manufacture. It is conceivable that with few fasteners through the bottom of the modular lightweight support until to the light metal profiles a solid connection is made. As a result of the "disk effect" of the laid out and interconnected light metal profiles, in operative connection standing with the module lightweight developer applied to it In addition to photovoltaic modules, a photovoltaic system designed according to the invention can be used not changed on a flat roof due to wind load become.

to Fastening of a photovoltaic module on the modular light vehicle are in the rounded front part of the overlay and in the upper one Part of the support for the photovoltaic module along continuous, in particular rectangular slots, in which dimensionally stable Plastic strips are inserted, in this, by the Material of the module light developer through, bolts with Internal threads are screwed in, preferably with four mounting brackets, which are equipped with corresponding holes in operative connection stand and the photovoltaic module on the module lightweight developer fix.

in the erected rear part of the module lightweight developer is / are longitudinal in the one of facing front a plurality of continuous, in particular rectangular recess (s) present, in which cable connections and other electrical / electronic components can be stored.

To the Purpose of a further weight saving on the individual modular light developers can, at the rear erected and more massive part of the module rectifier on the bottom side in a semi-circular, tunnel-like Recess be introduced, however, the breakage of the Modular light vehicle in the thus weakened Cross-sectional areas not affected and possibly further Provides space for receiving electrical / electronic components.

For the purpose of Preventing the intervention of wind load from the side into a row constructed modular lightweight girders are corner elements, too formed in streamlined form, each left and right as a conclusion attachable to such a row.

The Ventilation on the lightweight module carrier Non-applied photovoltaic modules will still be through vents ensured, including the built-in a series photovoltaic modules spaced apart from each other.

The Invention is to be closer by an embodiment be explained. For this purpose, the following figures are used:

1 : Front view of a lightweight module carrier without a mounted photovoltaic module

2 : Side view of a module lightweight construction frame with indicated support of a photovoltaic module

3 : Front view of a modular lightweight support with a corner element in the right position to complete in modular light weight modules constructed in series

According to 1 is the modular lightweight developer 1 without support of a photovoltaic module 7 represented so that in the ascending rear part and on the inwardly facing vertical wall of the module lightweight developer 1 a U-shaped recess 4 is visible in horizontal course. Here, cable glands or other electrical / electronic components can be accommodated. fasteners 2 and 3 with one hole each, after 2 above an approximately semicircular rounding 16 and at the top of the rear Part of the modular lightweight developer 1 are positioned, take an on-hook photovoltaic module 7 on, with bolts with internal thread 9 determine the place of permanent change. The latter grip through the holes of the fasteners 2 . 3 and through the EPS body of the modular light vehicle 1 so far through that they have the plastic strips 10 reach and be connected with them. The plastic strips 10 are previously in longitudinally through the modular lightweight carrier 1 slotted through slots. A groove 8th , below an applied photovoltaic module 7 , in modular lightweight construction 1 provides for a required ventilation and they can also both for further landfilling electrical / electronic components as well as for any required ballasting 15 be used.

For mounting one or more modular lightweight skids 1 on mounting rails (not shown) on a flat roof surface containing the footprint 18 of the lightweight module carrier 1 recesses 5 transverse to the longitudinal orientation of the modular light vehicle 1 are introduced. Parallel to these are several recesses 6 for the discharge of rainwater. An adequate recess 14 is located in the longitudinal direction of the module light developer in the footprint 18 , Parallel to the latter is, from the footprint 18 starting, a tunnel-like recess 12 in the rear part of the modular light developer 1 which, among other things, contributes to weight savings, it also being possible here for further electrical / electronic components to be inserted.

The modular lightweight developer 1 is via mounting holes 13 with the, on a roof surface, mounted mounting rails / profiles connectable. For the lateral completion of the modular lightweight developer 1 is provided, a corner element 17 each on the left and right of a row mounted modular lightweight girder 1 to place on the mounting rails.

It should be noted that the module lightweight developer 1 from its highest elevation back to the footprint 18 expiring, has a large-wave shape, whereby fluidic improvements in wind load can be achieved.

The modular lightweight developer 1 is designed to tilt the photovoltaic module 7 up to 30 °, so that the solar radiation is used economically sensible. However, the inclination should always be adjusted to the corresponding geographical latitude.

It is conceivable that the lightweight module carrier 1 with its footprint 18 and also the corner element 17 without fastening rails / profiles, glue the entire surface onto a roof surface with solvent-free adhesive.

• – leichte Bauweise ermöglicht den Einsatz auf Dächern auch mit statisch ungünstiger Flächenbelastung
• – geringer Windangriff durch strömungstechnische Formgebung
• – verbesserter Abfluss von Niederschlagswasser unterhalb des Modulleichtbauträgers
• – leichter Transport aller zu einem Modulleichtbauträger gehörenden Elemente (Mittelteile und Eckelemente)
• – unkomplizierte Montage
• – keine unnötige Durchdringung der Dachhaut

The advantages of the invention are summarized therein:

• - lightweight design allows use on roofs with static unfavorable surface load
• - Low wind attack by fluidic shaping
• - Improved runoff of rainwater below the modular lightweight developer
• - easy transport of all elements belonging to a lightweight module carrier (middle parts and corner elements)
• - uncomplicated installation
• - no unnecessary penetration of the roof skin

1

Module lightweight support (WITH)

2

fastener

3

fastener

4

U-shaped recess

5

recess

6

recess

7

photovoltaic module

8th

groove

9

bolt with internal thread

10

Plastic strips

11

large wave design

12

tunnel-like recess

13

mounting hole

14

recess

15

ballasting

16

rounding off

17

Corner

18

footprint

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102005030039 A1 [0004]
• - DE 20117280 U1 [0007]

Claims (6)

Modular Lightweight Module [MLT] ( 1 ) for the installation of photovoltaic modules [PV modules] ( 7 ) and corner elements ( 17 ) on the completion of a modular light-weight 1 ) in left and right position, in particular for installation on flat roofs with insufficient roof pitch for optimal use of sunlight, consisting of Ethylenpolyurethanschaum [EPS] and preferably with a weather-resistant surface sealing and in cross-section of a non-equilateral triangle, characterized in that the upwardly directed longer side of the aforementioned triangular cross-section than a long leg of the modular light-building carrier ( 1 ) a groove ( 8th ), wherein the front outgoing edge up to a first fastener ( 3 ) for a mounted photovoltaic module ( 7 ) approximates a semicircular training and the rear shorter leg, starting from a second fastener ( 2 ), which is located in the highest position of the module lightweight developer ( 1 ), on its outwardly and upwardly facing surface an elongated, large-wave down to the footprint expiring shape ( 11 ), in the footprint ( 18 ) of the modular lightweight construction ( 1 ) longitudinally and transversely extending differently wide and deep recesses ( 5 . 6 . 12 . 14 ) are mounted for mounting on mounting rails, for water drainage and weight saving and below the fasteners ( 2 . 3 ) for the photovoltaic module ( 7 ) inside the lightweight module carrier ( 1 ) flat plastic strips ( 10 ) are in which studs with internal thread ( 9 ) by drilling fasteners ( 2 . 3 ) are screwed. Modular lightweight developer ( 1 ) according to claim 1, characterized in that the vertical, inner side of the shorter leg of the modular light vehicle ( 1 ) one or more horizontally introduced, U-shaped recess (s) ( 4 ) for receiving cable connections or the like. Modular lightweight developer ( 1 ) according to claim 1, characterized in that the plastic strips ( 10 ) in longitudinally through the lightweight module carrier ( 1 ) through slots are inserted. Modular lightweight developer ( 1 ) according to claim 1, characterized in that in the footprint ( 18 ) of the lightweight module carrier ( 1 ) in the rear, shorter leg a tunnel-like - longitudinally through the modular lightweight carrier ( 1 ) continuous - tunnel-like recess ( 12 ) is introduced, which can also accommodate electrical / electronic components. Modular lightweight developer ( 1 ) according to claim 1, characterized in that in the groove ( 8th ) below an applied, photovoltaic module ( 7 ), in addition to housing other electrical or electronic components, also a ballast ( 15 ) can be inserted. Modular lightweight developer ( 1 ) according to claim 1, characterized in that the corner element ( 17 ) has a top-down and outgoing streamlined design, and in turn it is in a form-fitting and stationary connection with the bottom side designed on the roof surface mounting rails.