The present application is a U.S. national stage application under 35 U.S.C. ยง 371 of PCT Application No. PCT/EP2020/062508, filed May 6, 2020, which claims priority to German Patent Application No. 102019003390.6, filed May 13, 2019. The disclosures of the aforementioned priority applications are incorporated herein by reference in their entireties.
The present invention relates to a longitudinal profile and a module clamp for a solar module mounting system. The present invention further relates to a solar module mounting system. Such a mounting system may in particular be designed for use in open land. Such mounting systems are often referred to as open land mounting systems.
It is an object of the present invention to provide a longitudinal profile for a solar module mounting system that is inexpensive to manufacture and yet has high strength values. It is another object of the present invention to provide a module clamp for fastening solar modules to a longitudinal profile via their module frame. In addition, it is an object of the present invention to provide a solar module mounting system that is inexpensive to manufacture and capable of withstanding high loads.
These objects are achieved with a longitudinal profile with the features of claim 1, a module clamp with the features of claim 10 and a mounting system with the features of claim 17.
Further advantageous embodiments are specified in the dependent claims.
The longitudinal profile for a solar module mounting system according to the invention comprises at least one stop area which is designed to fasten the longitudinal profile to a transverse profile, and at least one head area which is connected to the at least one stop area via at least one connecting portion. The at least one stop area has at least one support surface for support on the transverse profile. The at least one head area has at least one bearing surface for at least one portion of a module frame of the solar module. The at least one head area has at least one engagement projection which is configured as a point of engagement for a fastening device.
The at least one head area may be formed by at least one undercut. The at least one head area may have at least two engagement projections pointing in opposite directions, which are configured as points of engagement for a fastening device for fastening a module frame to the longitudinal profile. Such a fastening device may be a module clamp, for example. The at least one head area may have at least one bearing portion which connects the at least two engagement projections. The at least one bearing portion may have the at least one bearing surface. The at least one bearing surface and the at least one support surface may extend at least mainly parallel to one another. The longitudinal profile may be designed to accommodate further components. The longitudinal profile may be configured as a hollow profile.
The at least one stop area may have at least one fastening opening. At least one fastening element can be inserted into the longitudinal profile via the at least one fastening opening. The at least one fastening opening may be slit-shaped. The at least one fastening opening may preferably extend over the entire length of the longitudinal profile. The at least one fastening element may be inserted into the longitudinal profile via the at least one fastening opening. The at least one fastening opening may be formed between at least two projections pointing into the interior of the longitudinal profile. The two projections can engage with at least one fastening element. Such a fastening element may be designed so that it can engage behind the two projections to allow for the longitudinal profile to be attached to a transverse profile.
The at least one stop area may have at least one support portion. At least one support surface may be formed on the at least one support portion. Support portions, each having a support surface, may be provided on both sides of the fastening openings. The at least one head area may have at least one portion which mainly runs at right angles to one of the support portions. This portion may connect the respective support portion to the at least one connecting portion.
The at least one connecting portion may extend at an angle to the at least one support surface and/or the at least one bearing surface. The at least one longitudinal profile may have two connecting portions. The distance between the two connecting portions may change. Preferably, the distance between the connecting portions may decrease starting from the stop area in the direction of the head area. The distance may be the smallest at the transition to the engagement projections. In the area of the engagement projections, the cross section of the longitudinal profile increases again. The engagement projections may each have a nose or be designed in the form of a nose.
Furthermore, a connecting profile may be provided which is designed to connect at least two longitudinal profiles of the type described above. The connecting profile may be designed in such a way that the connecting element can be inserted into the longitudinal profiles to be connected in a form-fitting manner in order to establish a connection to these longitudinal profiles. This enables to produce a fastener-free connection between the connecting profile and the longitudinal profiles to be connected via the connecting profile. Accordingly, due to the connecting profile, no screws or similar elements are necessary to establish a connection between the connecting profile and the longitudinal profiles to be connected via the connecting profile. A suitable fit enables the connecting profile to be accommodated in the longitudinal profile.
The connecting profile may have at least one positioning element. Abutment of the longitudinal elements to be connected can be created via the at least one positioning element. This ensures that the longitudinal profiles assume their predetermined position on the connecting profile. The at least one positioning element may thus mark the center of the connecting profile.
The present invention further relates to a module clamp for fastening a module frame of a solar module to a longitudinal profile. The module clamp comprises a bracket-shaped body which has at least two arms which can engage with a head area of a longitudinal profile, at least one abutment element which is designed to bear against the module frame, and at least one connecting screw which connects the bracket-shaped body to the abutment element.
Each arm of the bracket-shaped body may have at least one projection pointing in the direction of the respective other arm. The projections may be designed to each engage behind one of the engagement projections of the longitudinal profile. For this purpose, each of the engagement projections of the longitudinal profile can have or form a nose which can be engaged from behind by one of the projections of the arms of the bracket-shaped body. With the at least one screw, a tensile force can be exerted on the bracket-shaped body when the bracket-shaped body engages with the engagement portion of the longitudinal profile and the abutment element abuts the module frame. With this tensile force, the bracket-shaped body can be stretched or lengthened so that the solar module can be fastened to the longitudinal profile.
The abutment element may have at least one abutment portion for abutment on the module frame and at least one support portion for supporting the bracket-shaped body. If the at least one abutment element abuts a module frame and the bracket-shaped body and the abutment element are braced against one another via the screw, the at least one abutment element can rest against the bracket-shaped body with its support portion. This prevents the abutment element from tilting. Tilting of the abutment element could result in the connection to the module frame becoming loose.
A transverse profile for connection to a longitudinal profile according to the invention may be provided. The transverse profile has at least one opening. The at least one opening has an insertion portion and a holding portion, the insertion portion and the holding portion having different cross sections. The at least one opening can be designed in the shape of a key. The insertion portion may have a larger cross section than the holding portion. With the opening, a fastener-free connection option with further elements may be provided. The transverse profile may have a mainly C-shaped cross section. The transverse profile may have two legs which run mainly parallel to one another and are connected to one another via a connecting leg. The at least one opening can be formed in the connecting leg. The insertion portion and the holding portion of the opening can adjoin one another in the longitudinal direction of the transverse element.
Furthermore, according to the invention, a connector for connecting a longitudinal profile and a transverse profile may be provided. The connector has at least one locking element which is configured for insertion into the insertion portion of the opening and for engaging behind the edges of the opening in the holding portion. This enables a connection that is easy to produce, does not require additional connecting means and can be secured by the weight of the solar modules and the longitudinal profiles.
A fastening system for fastening solar modules to a longitudinal profile is provided. The fastening system comprises at least one fastening profile which is designed to accommodate module frames of a solar module in sections, at least one clamping device that holds the at least one fastening profile on the longitudinal profile, and at least one fastening element that can engage with the fastening profile to hold the module frames of the solar modules on the fastening profile.
The fastening profile may have at least two receiving portions with which the at least one fastening element for fastening the module frame can engage. The at least one fastening element may have two legs whose ends point towards one another. With these ends, the legs can each engage in one of the receiving portions of the fastening profile. The solar modules can rest against one of the side surfaces of the fastening element's legs with their module frames. The fastening element may in particular be provided at one end of the fastening profile. The fastening profile can be fastened to the longitudinal profile via the at least one clamping device. The solar modules can be held on the fastening profile via the fastening elements.
The present invention further relates to a mounting system with one or more longitudinal profiles, one or more transverse profiles which are connected to the longitudinal profiles, and one or more posts which are connected to one or more transverse profiles. The transverse profile may be a transverse profile of the type described above.
The mounting system may in particular be designed for use as an outdoor mounting system. This means that the mounting system can be set up in open space.
The mounting system may have one or more connectors for connecting a longitudinal profile to a transverse profile. The mounting system may have at least one module clamp for fastening module frames to a longitudinal profile. The mounting system may have at least one fastening system for fastening module frames to a longitudinal profile.
The mounting system may have at least one inclination device for adjusting the inclination of the solar modules. The inclination device enables to incline the solar modules in the transverse direction in particular. The inclination device may be provided on at least one of the posts. The inclination device may have a stationary post portion and a pivotable inclination portion which is pivotable around a pivot point relative to the post portion. The stationary post portion may be connected to a post or be formed by a post. A grid of holes which interacts with at least one screw for adjusting the angle of inclination may be provided at the inclination portion. In addition or as an alternative, a slot which interacts with a screw for setting the angle of inclination may be provided. The slot may be formed by a series of bores, as is the case, for example, with water pump pliers. The slot may be curved. The inclination portion can be pivoted around a pivot point to adjust the angle of inclination. The adjusted angle of inclination can be fixed using the screw and the curved slot. The curved slot can specify the angular range in which the angle of inclination can be adjusted.
Exemplary embodiments are described below with reference to the attached figures. They represent:
The mounting system 1000 has longitudinal profiles 100, transverse profiles 200 and posts 300, 302. Each transverse profile 200 is connected to the two posts 300 and 302. The transverse profiles 200 carry the longitudinal profiles 100 to which the solar modules 10 are attached via their module frames 12. The posts 300 and 302 differ in length, with the posts 300 being longer than the posts 302. Due to the different lengths of the posts 300 and 302, the solar modules 10 are inclined.
From the stop area 104, the connecting portions 106 and 108 extend towards the head area 102. The distance A between the connecting portions 106 and 108 decreases towards the head area 102. The smallest distance A between the connecting portions 106 and 108 is at or closely in front of the transition to the head area 102. In the head area 102, the cross section of the longitudinal profile 100 widens again via two engagement projections 120 and 122. The engagement projections 120 and 122 extend in the opposite direction. At the engagement projections 120, 122, a module clamp (not shown) may engage to enable the fastening of the solar modules 10 with their module frames 12 (not shown) to the longitudinal profiles 100.
The projections 120 and 122 are connected to each other via a bearing portion 124 which has a bearing surface 126 for the module frames 12 (not shown). The support portions 116 and 118 each have a support surface 128, 130. The support surfaces 128, 130 and the bearing surface 126 may extend mainly parallel to one another.
In addition, the stop area 104 has two portions 132 and 134 which extend between the support portions 116 and 118 and, in each case, one of the connecting portions 106 and 108. The portions 132 and 134 extend at an angle to the support portions 116 and 118. In particular, the portions 132 and 134 may extend at right angles to the support portions 116 and 118. The connecting portions 106 and 108 may in turn extend at an angle to the portions 132 and 134. The connecting portions 106 and 108 extend at an angle to the bearing surface and/or the support surfaces 128, 130. The angle of the connecting portion 106 to the bearing surface and/or the support surfaces 128, 130 is greater than the angle of the connecting portion 108 to the bearing surface and/or the support surfaces 128, 130. Due to the cross section described above, the longitudinal profile 100 has a high strength and is inexpensive to manufacture, nevertheless.
The connecting profile 400 has a positioning element 418 that is used to position the connecting profile 400 on the longitudinal profiles 100 to be connected. The positioning element 418 is formed centrally on the portion 416 and protrudes beyond the support portion 404. The positioning element 418 thus constitutes a projection. Unlike the support portion 404, the positioning element 418 is not folded.
The abutment element 504 has an angled basic shape. A receptacle 524 for accommodating the head of the screw 506 is formed on the abutment element 504. The abutment element 504 further has an abutment portion 526 and a support portion 528. The abutment portion 526 and the support portion 528 extend at an angle to each other. The abutment portion 526 has an abutment surface 530 for abutment against a module frame that is not shown. A support surface 532 is formed on the support portion 528 for supporting the abutment element against the bracket-shaped body 502, as shown in
The module frame 12 rests on the bearing surface 126 of the longitudinal profile 100. The module frame 12 is fastened to the longitudinal profile 100 with the module clamp 500, of which only the arms 508 and 510 of the bracket-shaped body 502 and parts of the screw 506 are shown in
At its stop area 104, the longitudinal profile 100 is fastened to the transverse profile 200. With its support portions 116 and 118, the longitudinal profile 100 rests against the transverse profile 200. A connector 600 is provided on the transverse profile 200, which connects the transverse profile 200 and the longitudinal profile 100 via a fastening element 602 and a screw 604. The fastening element 602 can be inserted into the longitudinal profile 100 through the opening 110. The fastening element 602 engages with the projections 112 and 114 of the longitudinal profile 100. In other words, the fastening element 602 can accommodate the projections 112 and 114 in sections. The fastening element 602 includes engagement portions 606 and 608 that engage around or behind the projections 112 and 114 of the fastening element. The support portion 404 of the connecting profile 400, which includes a fold, abuts the engagement portion 608 with its folded portion. Thus, the support portion 404 abuts the longitudinal profile 100 and the engagement portion 608 of the fastening element 602.
The transverse profile 200 has one or more openings 208 (see
In
The mounting system 1000 shown in
The inclination device 800 shown in
Number | Date | Country | Kind |
---|---|---|---|
102019003390.6 | May 2019 | DE | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/EP2020/062508 | 5/6/2020 | WO |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2020/229244 | 11/19/2020 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
749440 | Jackson | Jan 1904 | A |
1214928 | Lachman | Feb 1917 | A |
4621472 | Kloke | Nov 1986 | A |
6065255 | Stern | May 2000 | A |
8505864 | Taylor | Aug 2013 | B1 |
10203000 | Nehls | Feb 2019 | B2 |
20080053517 | Plaisted | Mar 2008 | A1 |
20080169018 | Miyamoto | Jul 2008 | A1 |
20080310913 | Urban | Dec 2008 | A1 |
20100132274 | Reyal | Jun 2010 | A1 |
20110023390 | Kneip | Feb 2011 | A1 |
20110068244 | Hartelius | Mar 2011 | A1 |
20110272367 | Kufner | Nov 2011 | A1 |
20120017526 | Eide | Jan 2012 | A1 |
20120031862 | Belikoff | Feb 2012 | A1 |
20120132262 | Sagayama | May 2012 | A1 |
20120273031 | Sagayama | Nov 2012 | A1 |
20120312356 | Mizuo | Dec 2012 | A1 |
20130008103 | Sagayama | Jan 2013 | A1 |
20130011187 | Schuit | Jan 2013 | A1 |
20130082014 | Nitzko et al. | Apr 2013 | A1 |
20130098858 | Cusson | Apr 2013 | A1 |
20130125959 | Sagayama | May 2013 | A1 |
20130139869 | Nuernberger | Jun 2013 | A1 |
20130139870 | Nuernberger | Jun 2013 | A1 |
20130141845 | Nuernberger | Jun 2013 | A1 |
20150013754 | Yakushiji | Jan 2015 | A1 |
20150247326 | Haddock | Sep 2015 | A1 |
20150311606 | Meine | Oct 2015 | A1 |
20150311854 | Goehringer | Oct 2015 | A1 |
20160164455 | Kanbara et al. | Jun 2016 | A1 |
20170117842 | Grant | Apr 2017 | A1 |
20170133976 | Dickey | May 2017 | A1 |
20180123505 | Prat | May 2018 | A1 |
20180187411 | Shang | Jul 2018 | A1 |
20190131918 | Kobayashi | May 2019 | A1 |
20190178274 | Katz | Jun 2019 | A1 |
20190372507 | Kobayashi | Dec 2019 | A1 |
20200059195 | Wang | Feb 2020 | A1 |
20200169214 | Koch | May 2020 | A1 |
20210041144 | Eriksson | Feb 2021 | A1 |
20210067083 | Stephan | Mar 2021 | A1 |
20210194409 | Gruetzner | Jun 2021 | A1 |
20220255496 | Carroll | Aug 2022 | A1 |
20220345074 | Neal | Oct 2022 | A1 |
20220407451 | Jacobs | Dec 2022 | A1 |
20230178904 | Stephan | Jun 2023 | A1 |
Number | Date | Country |
---|---|---|
107482998 | Dec 2017 | CN |
202010006443 | Aug 2010 | DE |
202012012290 | Jan 2013 | DE |
202016008379 | Sep 2017 | DE |
102018114621 | Dec 2019 | DE |
2302694 | Mar 2011 | EP |
2013239495 | Nov 2013 | JP |
2014195056 | Oct 2014 | JP |
2015038316 | Feb 2015 | JP |
2015105494 | Jun 2015 | JP |
2016105680 | Jun 2016 | JP |
2013162009 | Oct 2013 | WO |
2017013241 | Jan 2017 | WO |
Entry |
---|
Japanese Office Action 2021-568478 Issued Dec. 16, 2022. |
Office Action issued in counterpart Chinese Application No. 202080035788.3 on Nov. 16, 2023. |
Office Action issued in corresponding Chinese Application No. 202080035788.3 on Apr. 26, 2024. |
Number | Date | Country | |
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20220216824 A1 | Jul 2022 | US |