SNAP-IN MOUNTING SYSTEMS FOR LAMINATE SOLAR PANELS
20200228050 ยท 2020-07-16
Inventors
Cpc classification
F24S25/632
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
H02S20/20
ELECTRICITY
Y02E10/50
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02E10/47
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
F24S2025/6004
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
H02S20/20
ELECTRICITY
F24S25/33
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F24S25/632
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
Snap-in mounting systems for laminate solar panels are provided. The laminate solar panels can include laminate strips that can be snapped into mounting rails. The mounting rails may be coupled to racking rails for structural support and may include locking mechanisms for additional support and theft deterrence. An entire system may include a number of racking rails, mounting rails, and solar panels.
Claims
1-23. (canceled)
24. A rail attachment assembly, comprising: a laminate strip comprising two portions substantially parallel to each other and extending away from a surface shared by the two portions in a substantially perpendicular direction until each reaches a distal end, wherein the distal end of each of the two portions comprises a notch, wherein each of the notches extend in different directions; and a mounting rail comprising two sidewalls substantially parallel to each other and extending away from a surface shared by the two sidewalls in a substantially perpendicular direction until each reaches a distal end, wherein each sidewall is configured to bend at its distal end without permanent deformation, wherein each distal end of the two sidewalls is configured with clip, wherein each clip is configured to snap into place with one of the notches as the laminate strip is attachably coupled to the mounting rail.
25. The hardware attachment assembly of claim 24, wherein each of the notches is configured to face away from the other notch, and each of the sidewalls is configured to bend outwardly from the other sidewall as the laminate strip is coupled to the mounting rail.
26. The hardware attachment assembly of claim 25, wherein the laminate strip is locked to the mounting rail with a fastener configured to apply a compressive stress against the two sidewalls.
27. The hardware attachment assembly of claim 26, wherein the fastener is a bolt.
28. The hardware attachment assembly of claim 25, wherein the two sidewalls of a laminate strip attachably coupled to the mounting rail are configured to be forced apart when the laminate strip is decoupled from the mounting rail.
29. The hardware attachment assembly of claim 24, wherein each of the notches is configured to face towards the other notch, and each sidewall is configured to bend inwardly towards the other sidewall as the laminate strip is attachably coupled to the mounting rail.
30. The hardware attachment assembly of claim 24, wherein the laminate strip comprises at least one of steel, aluminum, and plastic.
31. The hardware attachment assembly of claim 24, wherein the laminate strip comprises a composite material.
32. The hardware attachment assembly of claim 24, wherein the laminate strip is configured to adhere to a laminate solar panel with an adhesive.
33. The hardware attachment assembly of claim 32, wherein the adhesive comprises at least one of a silicone bonding material and double-sided tape.
34. A rail attachment assembly, comprising: a laminate strip comprising two portions substantially parallel to each other and extending away from a surface shared by the two portions in a substantially perpendicular direction until each reaches a distal end, wherein the distal end of each of the two portions comprises a notch, wherein each of the notches faces inwardly toward the other notch; and a mounting rail comprising two individual outwardly facing U-shaped rails coupled together, wherein one end of each of the rails is configured with clip, wherein each clip is configured to engage with one of the notches as the laminate strip is coupled to the mounting rail.
35. The hardware attachment assembly of claim 34, wherein the laminate strip comprises at least one of steel, aluminum, and plastic.
36. The hardware attachment assembly of claim 34, wherein the laminate strip comprises a composite material.
37. The hardware attachment assembly of claim 34, wherein the laminate strip is configured to adhere to a laminate solar panel with an adhesive.
38. The hardware attachment assembly of claim 37, wherein the adhesive comprises at least one of a silicone bonding material and double-sided tape.
39. A rail attachment assembly, comprising: a laminate strip comprising two portions substantially parallel to each other and extending away from a surface shared by the two portions in a substantially perpendicular direction until each reaches a distal end, wherein the distal end of each of the two portions comprises a notch, wherein each of the notches faces inwardly toward the other notch; and a mounting rail comprising an I-beam, wherein one flange of the I-beam is configured to engage with the inwardly facing notches.
40. The hardware attachment assembly of claim 39, wherein the laminate strip comprises at least one of steel, aluminum, and plastic.
41. The hardware attachment assembly of claim 39, wherein the laminate strip comprises a composite material.
42. The hardware attachment assembly of claim 39, wherein the laminate strip is configured to adhere to a laminate solar panel with an adhesive.
43. The hardware attachment assembly of claim 42, wherein the adhesive comprises at least one of a silicone bonding material and double-sided tape.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The above and other aspects of the invention, its nature, and various features will become more apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout, and in which:
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DETAILED DESCRIPTION
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[0029] Laminate strips 102,103 can be firmly bonded or adhered to laminate solar panel 101 using any suitable adhesive product, such as double sided tape, silicone adhesives (e.g., Dow Corning PV8030), or combinations of more than one adhesive. Laminate strips 102,103 may include any suitable material, including aluminum, steel, plastic, or a composite, although nonconductive materials like plastics and composites may be preferred according to some embodiments. Laminate strips 102,103 can include two extruded portions made of a rigid or semi-rigid material. The extruded portions can include two notches at their distal ends, which may be designed to snap into a matching clip in a mounting rail. This feature is described in more detail with regard to
[0030] According to some embodiments, laminate strips 102,103 can be mounted to laminate solar panel 101 during the initial manufacture of laminate solar panel 101. In other embodiments, laminate strips 102,103 can be mounted after the initial manufacture of laminate solar panel 101 (e.g., at a separate facility or in the field).
[0031] Laminate strips 102,103 can be manufactured using any suitable method. For example, laminate strips 102,103 may be glued or welded together to form the necessary structure to snap into corresponding mounting rail clip structures connected to a racking system. Alternatively, laminate strips and mounting rail clips can be fabricated with corresponding molds in, for example, an injection molding process. Additionally, one skilled in the art will appreciate that similar techniques can be used to fabricate laminate strips 102,103.
[0032] Although laminate solar panels are generally discussed throughout, framed solar panels may be substituted for laminate solar panels according to some embodiments. A framed solar panel can include a laminate solar panel (e.g., laminate solar panel 101 of
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[0034] According to some embodiments, mounting rails 201,202 can be rigid, but flexible enough to bend without permanently deforming any part of solar panel racking portion 200 or laminate solar panels (e.g., laminate solar panel 101 of
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[0036] After assembly, snap-in laminate solar panel 100 can be securely fastened to solar panel racking portion 200 by virtue of notched ends 104,105 of laminate strips 102,103 pushing against clip structures 210,211 of mounting rails 201,202.
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[0038] Channel nuts 406,407 can be located inside the second opening in mounting rails 401,402 to accept bolts 404,405. Bolts 404,405 can be inserted through slots in L-Feet 408,409 to secure L-Feet 408,409 adjacent to the second openings of mounting rails 401,402. L-Feet 408,409 can be adjusted to provide tolerance for rail alignment during installation and may be coupled to surface 403 with fasteners 412,413.
[0039] A junction box or j-box 110 may house one or more electrical connectors that may join wires that can be electrically coupled to one or more of the solar cells of laminate solar panel 101. A cable 112 can include one or more conductors leading from the one or more electrical connectors inside junction box 110 and may run, according to some embodiments, to a battery, electrical grid, or other suitable load.
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[0042] In some embodiments, laminate strips 102,103 can include plastic, a composite, or other suitable rigid, nonconductive material. Because nonconductive materials like plastic do not have to be grounded, laminate strips 102,103 can be snapped into mounting rails 601,602 without impacting system grounding requirements, thereby simplifying system design and installation.
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[0045] Bolt 810 can extend across mounting rail 201 and hold the sidewall portions together with either a locking nut (not shown) or threaded inserts in the sidewalls. Bolt 810 can be rotated to tighten the sidewalls of mounting rail 201 against the notch portion of laminate strip 102. In some embodiments, bolt 810 can be a locking bolt that cannot be removed without a keyed driver bit, a key, or a combination for the lock. As shown, bolt 801 may pass below laminate strip 102. However, in some embodiments, bolt 810 can pass through laminate strip 102 to prevent snap-in laminate solar panel 100 from sliding in mounting rail 201, especially in the presence of extreme loads (e.g., from wind, snow, and/or seismic forces).
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[0047] As shown in
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[0052] Laminate region 1222 can include a laminate material (e.g., EVA) that encapsulates cells 1220,1221 and bonds them to substrates 1223 and 1224. According to some embodiments, the surfaces of solar panel layers 1220, 1221, 1223, and 1224 can include scoring, grooves, or notches to increase the surface area between the layers as increased surface area may generally increase the strength of the bond. The thickness of laminate region 1222 and the amount of scoring of solar panel layers layers 1220, 1221, 1223, and 1224 can depend on design load requirements, solar panel dimensions, the materials used, and the like. Solar cell efficiency concerns may also determine the optimal amount of scoring, particularly for the surfaces of cells 1220 and 1221 proximal to substrate 1223. For example, distressing the surface of cells 1220 and 1221 may result in reduced efficiency due to recombination of carriers at the surface.
[0053] Bonding regions 1226 can incorporate any suitable adhesive product, such as double sided tape, silicone adhesives (e.g., Dow Corning PV8030), or combinations of more than one adhesive to firmly bond laminate strips 1225 to substrate 1224. Laminate strips 1225 may also include scoring, grooves, or notches to improve strength of the bond.
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[0056] Combination 1400b may include a laminate strip 1402b that may be coupled to a mounting rail 1401b. Outwardly bending clip structures may be formed at the distal ends of the sidewalls of mounting rail 1401b to engage the inwardly facing notches of the extruded portions of laminate strip 1402a. Mounting rail 1401a can be formed by any suitable process (e.g., roll forming or extrusion).
[0057] Combination 1400c may include a laminate strip 1402c that may be coupled to a mounting rail 1401c. Mounting rail 1401c can include two individual outwardly facing U-shaped rails coupled together. The distal end can be configured to correspond to the shape of, and engage the inner surface of the extruded portions of laminate strip 1402c, which can include inwardly facing notches. The individual rails of mounting rail 1401a can be formed by any suitable process and coupled together. For example, the individual rails may roll formed and joined together using any suitable process (e.g., welding, inline punching, or using fasteners, such as rivets or pins).
[0058] Combination 1400d may include a laminate strip 1402d that may be coupled to a mounting rail 1401d. Mounting rail 1401d can be an I-beam with a distal flange end that may be configured to engage an inner surface of one or more extruded portions of laminate strip 1402d, which can include inwardly facing notches. The I-beam, or similar shape, could be extruded from aluminum or manufactured using other materials, including composite or steel.
[0059] According to some embodiments, snap-in laminate solar panels can include any number of laminate strips, and the strips may be of any suitable length. Moreover, in some embodiments, laminate strips can be coupled to a laminate solar panel in any suitable orientation. The particular configuration chosen may depend on cost, ease of installation, anticipated loads (e.g., wind and snow loads), or any other suitable factor or combination of factors. Two exemplary embodiments are discussed below with reference to
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[0063] Mounting clips 1701, 1702, 1703, and 1704 can be coupled to frame 1705 in any suitable manner and may serve the same purpose, for example, as laminate strips 101,102 of
[0064] While there have been described snap-in mounting systems for laminate solar panels, it is to be understood that many changes may be made therein without departing from the spirit and scope of the invention. Insubstantial changes from the claimed subject matter as viewed by a person with ordinary skill in the art, no known or later devised, are expressly contemplated as being equivalently within the scope of the claims. Therefore, obvious substitutions now or later known to one with ordinary skill in the art are defined to be within the scope of the defined elements.
[0065] The described embodiments of the invention are presented for the purpose of illustration and not of limitation.