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DE-102024116949-B4 - Clamp, system and method for attaching a solar module to a substructure

DE102024116949B4DE 102024116949 B4DE102024116949 B4DE 102024116949B4DE-102024116949-B4

Abstract

Clamp (100) for attaching a solar module (200) with a module frame (202) to a substructure (302), with a terminal body (102) comprising a terminal top (104) and a terminal bottom (106) opposite the terminal top (104), with a support surface (108) on the underside (106) of the terminal, which is penetrated by a groove (110) for terminal fixing, wherein a first receiving section (112) for a first module frame area adjoins a first side of the support surface (108), which is designed to clamp the module frame (202) in the assembled state, characterized in that a second receiving section (114) for a second module frame area adjoins a second side of the support surface (108), which is designed with a non-zero inclination (116) with respect to the support surface (108) such that the module frame (202) is held essentially without clamping in the assembled state.

Inventors

  • Erhan Dinçer
  • Muhsin Dinçer

Assignees

  • Erhan Dinçer
  • Muhsin Dinçer

Dates

Publication Date
20260513
Application Date
20240617

Claims (10)

  1. Clamp (100) for attaching a solar module (200) with a module frame (202) to a substructure (302), with a terminal body (102) comprising a terminal top (104) and a terminal bottom (106) opposite the terminal top (104), with a support surface (108) on the terminal bottom (106) which is penetrated by a groove (110) for clamping the terminal, wherein a first receiving section (112) for a first module frame area adjoins a first side of the support surface (108), which is designed to clamp the module frame (202) in the assembled state, characterized in that a second receiving section (114) for a second module frame area adjoins a second side of the support surface (108), which is designed with a non-zero inclination (116) with respect to the support surface (108) such that the module frame (202) is held essentially without clamping in the assembled state.
  2. Terminal (100) after Claim 1 , characterized in that a first step (118) is provided between the support surface (108) and the first receiving section (112), the step height of which is from 0.5 millimeters to 1.0 millimeter.
  3. Terminal (100) after Claim 1 or 2 , characterized in that a second step (120) is provided between the support surface (108) and the second receiving section (114), the step height of which is between 1.0 millimeter and 2.0 millimeter.
  4. Terminal (100) after one of the Claims 1 until 3 , characterized in that the first receiving section (112) comprises a toothing (122) on its side facing away from the upper surface of the clamp (104).
  5. Terminal (100) after one of the Claims 1 until 4 , characterized in that the second receiving section (114) has an insertion surface (124) on its side facing away from the top of the clamp (104) which is free of kinks and/or discontinuities.
  6. Terminal (100) after one of the Claims 1 until 5 , characterized in that the inclination (116) of the second recording section (114) is from 5 degrees to 20 degrees.
  7. Terminal (100) after one of the Claims 1 until 6 , characterized in that the upper surface of the clamp (104) is free of kinks and/or discontinuities.
  8. Terminal (100) after one of the Claims 1 until 7 , characterized in that the clamping body (102) is provided with a first recess (134) on a first flank (132) associated with the first receiving section (112), and/or that the clamping body (102) is provided with a second recess (138) on a second flank (136) associated with the second receiving section (114).
  9. System (300) for mounting at least one solar module (200), comprising a substructure (302) made of at least four supports (304), at least two longitudinal beams (306) which can be connected to or are connected to the supports (304), and at least two module carriers (308) which can be attached or are attached to the at least two longitudinal beams (306) spaced apart from one another, wherein each module carrier (308) has at least one round hole (310) and at least one elongated hole (312) oriented in the longitudinal direction of the module carrier (308), as well as at least four clamps (100) according to one of the Claims 1 until 8 , which can be connected or are connected to the round holes (310) and to the elongated holes (312) of the module carriers (308).
  10. Method for attaching a solar module (200) to a substructure (302) comprising at least four supports (304), at least two longitudinal beams (306) connected to the supports (304), and at least two module supports (308) spaced apart from one another and attached to the at least two longitudinal beams (306), wherein each of the module supports (308) has at least one round hole (310) and at least one elongated hole (312) oriented longitudinally along the module support (308), wherein four clamps (100) are arranged according to one of the Claims 1 until 8 The following steps are present: - Inserting the screw head of a screw into the groove (110) of the clamping body (102) of the clamps (100) such that a screw shank of the screw protrudes from the clamping body (102); - Placing one of the clamps (100) onto one of the round holes (310) of the module carriers (308) such that the first receiving section (112) faces away from a module frame (202) of the solar module (200), and that the screw shank of the screw passes through the respective round hole (310) and protrudes on one side of the module carrier (308) facing away from the clamp (100); and securing the clamps (100) placed on the round holes (310) to the module carrier (308) by screwing a fixing nut onto the screw shank; - Place one of the clamps (100) onto one of the elongated holes (312) of the module carriers (308) such that the first receiving section (112) faces a module frame (202) of the solar module (200), and that the screw shaft of the screw passes through the respective elongated hole (312) and is attached to one of the clamps (100). - The following steps are performed: ...

Description

The invention relates to a clamp, a system and a method for attaching a solar module or several solar modules to a substructure. DE 20 2007 012 570 U1 shows a device for solar installations, which is formed from intersecting profiles and consists of a device for attaching solar panels to several supports connected in a series. Furthermore, it describes DE 297 20 487 U1 a mounting bracket with two legs that are perpendicular to each other, reinforced by two support walls spaced apart from each other. The DE 20 2009 006 970 U1 Disclosing a foundation system for the sun-inclined mounting of planar solar panels arranged side by side, which are held in one or more rows by longitudinal beams resting on a plurality of crossbeams, which in turn are mounted on a shorter and a longer support such that they and the at least one row of panels mounted on them are inclined towards the sun. Furthermore, the DE 20 2009 006 970 U1 A shorter and a longer upright are connected to each other diagonally via a guide and a strut, and laterally via crossbeams, the crossbeams being connected longitudinally to the longitudinal beams. The panels are arranged in two rows side by side and held by longitudinal beams. The mounting plate from the DE 20 2007 012 570 U1 or the mounting bracket from the DE 20 2009 006 970 U1 The stability of the mounting structure in the solar array may be insufficient. The high load on the posts and the wind forces, which negatively impact the support system over time in an open area, push against or pull on the module tables. DE 20 2005 003 224 U1 This describes a mounting system for solar panels that can be installed on roofs or other portable structures using support profiles. Note that a mounting channel serves as an additional profile for accommodating electrical wiring. The WO 2015/089413 A1 shows a connecting element for solar panels that accommodates two PV modules. The US 6,105,317 A It also describes a connecting element for solar panels that is equipped with a sink for rainwater. In the DE 10 2018 001 171 A1 and the DE 10 2018 001 170 A1 Connection systems using intersecting C-profiles to form modular tables are described, which have proven very successful in practice. The US 2009 / 0 230 265 A1 and the JP 2017 - 225 276 A show a clamp according to the preamble of claim 1. A first receiving section for a first module frame area adjoins a first side of the contact surface of the clamp, which is designed to clamp the module frame in the assembled state. The object of the present invention is to provide a clamp, a system and a method for attaching a solar module to a substructure in which thermally induced length changes are uncritical and in which the mechanical stresses on the solar cells of the solar module are reduced. This problem is solved by a clamp having the features of claim 1, by a system having the features of claim 9, and by a method having the features of claim 10. Advantageous embodiments with expedient further developments of the invention are specified in the dependent claims and in the present description. The clamp according to the invention for fastening a solar module with a module frame to a substructure comprises a clamp body, which includes a clamp top and a clamp bottom opposite the clamp top. A contact surface is provided on the clamp bottom, which is penetrated by a groove for clamping. A first receiving section for a first module frame area adjoins a first side of the contact surface, designed to clamp the module frame in the mounted state. A second receiving section for a second module frame area adjoins a second side of the contact surface, in particular opposite the groove and the first side. This second receiving section is designed with a non-zero inclination relative to the contact surface such that the module frame is held essentially without clamps, in particular suspended, in the mounted state. This design creates a separation of the additive thermal expansions/changes in length of the individual solar modules, thereby reducing the mechanical stresses on the solar cells and protecting them from microcracks. This slows down The clamping system prevents the degradation of performance and the aging of solar modules. Because the clamp only mechanically contacts or loads the module frame—and not the glass substrate of the solar module—cracks or fractures in the glass substrate are avoided. Due to their placement on only the module substrate, the clamps do not protrude beyond the glass body, allowing snow, ice, and dirt to slide off more easily. The clamps are therefore not obstructive. Furthermore, the inventive solution allows the clamps to be mounted not from the side facing the glass body and solar cells, but from the opposite side, i.e., from below. This simplifies installation, particularly for very large solar arrays, resulting in improved surface utilization and better shading distances. The clamps according to the invention can be mounted on their module subst