PHOTOVOLTAIC ARRAY KIT AND METHOD OF INSTALLATION
20190074387 ยท 2019-03-07
Assignee
Inventors
- James R. Keenihan (Midland, MI, US)
- Joseph A. Langmaid (Caro, MI, US)
- Robert J. Cleereman (Midland, MI, US)
- Andrew T. Graham (Midland, MI, US)
Cpc classification
H01R13/639
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
H01R31/00
ELECTRICITY
H02S40/34
ELECTRICITY
Y02A30/60
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
Y10T29/49826
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
H01R13/113
ELECTRICITY
H01R13/055
ELECTRICITY
H01L31/05
ELECTRICITY
H01R12/79
ELECTRICITY
Y10T29/49355
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
Y10T29/49117
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
Y02B10/10
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
H02S40/36
ELECTRICITY
H01R13/7032
ELECTRICITY
International classification
H02S40/36
ELECTRICITY
H02S40/34
ELECTRICITY
H01R13/639
ELECTRICITY
H01L31/05
ELECTRICITY
H01R31/00
ELECTRICITY
H01L31/18
ELECTRICITY
H01R13/703
ELECTRICITY
Abstract
The present disclosure is generally related to a solar array kit for installation on a support structure, such as a roof. The kit includes photovoltaic panels that include active elements, edge pieces that connected around and to the photovoltaic panels, a starter piece, and one or more electrical connectors that electrically connect the photovoltaic panels to one another.
Claims
1. A solar array kit for installation on a structure, comprising: a plurality of photovoltaic panels; a plurality of edge panels connectable to one or more of the photovoltaic panels; a plurality of end pieces connectable to the one or more edge panels; a starter piece connectable to at least one of the plurality of photovoltaic panels; and one or more electrical connectors that electrically connect the photovoltaic panels to one another.
Description
DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0040] The present invention is a photovoltaic device assembly (or kit) and method of making same. This assembly can include a plurality of photovoltaic devices (PV devices or PVD) that are placed in rows or columns (e.g. two or more); wherein the devices can be both physically and electrically connected by connectors, edge pieces, spacer pieces, or any combination thereof. The assembly is configured to aid in providing quick and easy installation and to reduce the number of potential structure, (faade or roofin the case of the preferred structure of a building roof application) penetrations needed. Preferably, the photovoltaic device assembly utilizes PV devices and connectors that are the same or similar (functionally and/or structurally) to those described in U.S. patent application Ser. Nos. 61/050,341 and 61/098,941, both hereby incorporated by reference for all purposes.
[0041] Generally, the present invention contemplates a photovoltaic device assembly or kit 20 (for example as a row configuration as shown in
[0042] The edge piece 50 may include two or more edge connector assemblies 52 for connecting each respective row or column of photovoltaic devices. The edge piece can include electrical element or elements 51 incorporated between edge connector assemblies 52 such that the rows are electrically connected together or have a single electrical output 500 from the kit 20 at or near an outer edge of the kit. In certain cases, the edge piece may only include a single edge connector assembly 52, such as in the case of a starter piece 53 or an end piece 55. In other cases, the edge piece may have no electrical connector assemblies 52 and function solely as a filler piece 54. Preferably, the edge connector assemblies and the photovoltaic or solar array connector assemblies 58 are the same or similar (e.g. functionally and/or structurally). A description for one is intended to apply to the other unless specifically stated otherwise. The edge piece connector assembly can be, as in the first embodiment, integral to the edge piece (i.e. located within at least one peripheral edge of an edge piece as is shown in
[0043] The edge piece connector assembly 52 can include a housing 56 integral to the edge piece (e.g. a receptacle housing), as shown in the PV device in
[0044] The assembly can also include any number of spacer pieces 400 (e.g. as shown in
[0045] It is also contemplated that the assembly or kit can be configured to provide a targeted power output (e.g. 0.1 to 8 KWp or more (KWp defined as kilowatt-peak) and to fit standard building designs (e.g. mass produced homes) that share roof and/or fascia layouts, or can be custom configured for one-off designs. For example, the kit can be configured to fit (e.g. number of PV devices, number of rows, number and location of spacers/edge pieces) one particular roof design that is utilized in a particular model home offered by a builder (e.g. the Beaumont model offered by Pulte Homes)
[0046] The individual components that make up the kit are described in further detail and illustrative examples of some of the possible kit configurations are provided below.
PV Device
[0047] In an illustrative example, the PV device 100 can be described generally as a three dimensional article that includes an energy producing device (e.g. solar cells), electrical circuitry to transfer the energy produced, and a body which holds the energy producing device and allows it to be effectively mounted onto a structure. It is contemplated that a PV device 100 of the present invention is preferably a discrete part/component that is used in the overall kit.
[0048] For example, as shown in
[0049] For example as shown in an exploded view of a PV device 100 in
[0050] The PV devices 100 can include at least one peripheral edge 112, at least one photovoltaic cell 111 inboard of the at least one peripheral edge 112.
[0051] The at least one buss terminal 140, which can function to transfer current to or from the photovoltaic cell assembly 110 via at least one integral photovoltaic connector assembly 57 located within the at least one peripheral edge 112.
[0052] The body portion 120 lower surface portion 124 can contact the structure (e.g. building substrate and/or structure). Also having an upper surface portion 122 that receive a fastener (not shown, e.g. nail, screw, staple, rivet, etc.) that attaches the photovoltaic device 100 to the structure. Furthermore, the body portion 120 can be at least partially joined to at least one edge portion of the photovoltaic cell assembly 110 along at least a portion of a bottom segment 156 of the body portion 120 while leaving at least a portion of the at least one photovoltaic cell 111 exposed to receive radiation.
[0053] It is contemplated that the PV device 100 can be constructed at least partially of flexible materials (e.g. thin films or deformable materials, with significant plastic or elastic elongation such as plastics, synthetic and natural rubbers, films, elastomers, or the like) to allow at least some flexibility for conforming to an irregular contour in a building structure. It is also contemplated that it can be desirable to at least keep the photovoltaic cell relatively rigid, generally to prevent any cracking of the cell. Thus, some parts of the PV device can be constructed with a more rigid material (e.g. glass plate, mineral filled composites, or polymeric sheets). Although, the photovoltaic cell can be partially or substantially rigid, it is possible for the PV device to be generally flexible. For this invention, flexible means that the PV device is more flexible or less rigid than the substrate (e.g. structure) to which it is attached. Preferably, in the case of a flexible substrate the PV device can bend about a 1 meter diameter cylinder without a decrease in performance or critical damage. Preferably, in the case of a rigid substrate the PV device can bend about 20 meter diameter cylinder without a decrease in performance or critical damage. For example, in the case of a PV device shingle, shingles generally are less rigid than the roof deck; the roof deck provides structural rigidity. In some other examples the roofing product itself provides the necessary rigidity and the roof deck is absent, or minimized.
[0054] The photovoltaic cell 110, contemplated in the present invention may be constructed of any number of known photovoltaic cells commercially available or may be selected from some future developed photovoltaic cells. These cells function to translate light energy into electricity. The photoactive portion of the photovoltaic cell is the material which converts light energy to electrical energy. Any material known to provide that function may be used including crystalline silicon, or amorphous silicon. However, the photoactive layer is preferably a layer of IB-IIIA-chalcogenide, such as IB-IIIA-selenides, IB-IIIA-sulfides, or IB-IIIA-selenide sulfides. More specific examples include copper indium selenides, copper indium gallium selenides, copper gallium selenides, copper indium sulfides, copper indium gallium sulfides, copper gallium selenides, copper indium sulfide selenides, copper gallium sulfide selenides, and copper indium gallium sulfide selenides (all of which are referred to herein as CIGSS). These can also be represented by the formula CuIn(1-x)GaxSe(2-y)Sy where x is 0 to 1 and y is 0 to 2. The copper indium selenides and copper indium gallium selenides are preferred. Additional electroactive layers such as one or more of emitter (buffer) layers, conductive layers (e.g. transparent conductive layers) and the like as is known in the art to be useful in CIGSS based cells are also contemplated herein. These cells may be flexible or rigid and come in a variety of shapes and sizes, but generally are fragile and subject to environmental degradation. In a preferred embodiment, the photovoltaic cell assembly 110 is a cell that can bend without substantial cracking and/or without significant loss of functionality. Exemplary photovoltaic cells are taught and described in a number of US patents and publications, including U.S. Pat. Nos. 3,767,471, 4,465,575, US20050011550 A1, EP841706 A2, US20070256734 a1, EP1032051A2, JP2216874, JP2143468, and JP10189924a, incorporated hereto by reference for all purposes.
Connector
[0055] It is contemplated that the kit 20 may use a plurality of connectors 58, for example such as those described in U.S. provisional application 61/098,941 hereby incorporated by reference. These connectors can be separate components (e.g. as shown in
[0056] It is also contemplated that the opposing receptacle connector housing can be integral to an outer wall section (e.g. portions such as top, bottom, or sides of the PV array or edge piece) of the PV device 100 or edge piece 50. The housing can be connected to the PV device or edge piece via a fastener scheme (e.g. mechanical fasteners, adhesives, or a combination thereof) or can be integrated into the PV device or edge piece via the structure of the device/piece (e.g. over-molded into the device or part of the framework of the PV device or edge piece for example as shown in
[0057] The edge piece connector assembly may be further characterized by one or any combination of the features described herein, such as the opposing receptacle connector housing is integral to an outer wall section of the edge piece or the photovoltaic array; the connector assembly includes a bypass diode electrically connected to the at least one electrically conductive member; the connector assembly includes an indicator device to communicate a circuit status; the connector assembly includes a locking device that locks the male (header) connector element to the opposing receptacle connector housing upon installation; the connector assembly includes a second electrically conductive member, the first end portion of which is integral to the outer wall section of the photovoltaic array or edge piece, the connector element (header or receptacle) is integral to the first connector housing (header or receptacle), an outwardly projecting portion in the locator portion that projects upward towards a top surface that is generally coplanar with a top surface of the photovoltaic array or edge piece.
[0058] It should be appreciated that the above referenced aspects and examples are non-limiting, as others exist within the present invention, as shown and described herein.
Edge Piece
[0059] The edge piece 50, for example as shown in
[0060] As shown in
[0061] In one illustrative example, shown in
[0062] In another illustrative example shown in
[0063] In yet another illustrative example, shown in
[0064] The main body portion 60 can be constructed of any number of materials (e.g. polymers, metals and/or ceramics), so long as it resists environmental degradation as it is exposed to the outdoor over the years of service (e.g. 10, 20 or 30 years or more). Preferred materials or combinations of materials include a filled or unfilled moldable plastic (e.g. polyolefins, acrylonitrile butadiene styrene, hydrogenated styrene butadiene rubbers, polyester amides, polysulfone, acetel, acrylic, polyvinyl chloride, nylon, polyethylene terephthalate, polycarbonate, thermoplastic and thermoset polyurethanes, synthetic and natural rubbers, epoxies, styrene-acrylonitrile (SAN), polymethyl methacrylate, polystyrene, or any combination thereof). Fillers can include one or more of the following: colorants, fire retardant (FR) or ignition resistant (IR) materials, reinforcing materials, such as glass or mineral fibers, surface modifiers. Plastic can also include anti-oxidants, release agents, blowing agents, and other common plastic additives.
Illustrative Examples
[0065] The various examples discussed below and shown in the figures generally attempt to take PV devices, edge pieces, connectors and optionally other components (e.g. spacers 400 as shown in
[0066] Referring to
[0067] It is contemplated that the electrical output 500 may be accomplished via a pass-through electrical connector assembly 510 (for example as shown in
[0068] Referring to
[0069] Referring to
[0070] Referring to
[0071] Referring to
[0072] Referring to
[0073] According to another embodiment, tile style installations (e.g. columns) are preferably arranged as shown in
[0074] In
[0075] Unless stated otherwise, dimensions and geometries of the various structures depicted herein are not intended to be restrictive of the invention, and other dimensions or geometries are possible. Plural structural components can be provided by a single integrated structure. Alternatively, a single integrated structure might be divided into separate plural components. In addition, while a feature of the present invention can have been described in the context of only one of the illustrated embodiments, such feature can be combined with one or more other features of other embodiments, for any given application. It will also be appreciated from the above that the fabrication of the unique structures herein and the operation thereof also constitute methods in accordance with the present invention.
[0076] The preferred embodiment of the present invention has been disclosed. A person of ordinary skill in the art would realize however, that certain modifications would come within the teachings of this invention. Therefore, the following claims should be studied to determine the true scope and content of the invention.
[0077] Any numerical values recited in the above application include all values from the lower value to the upper value in increments of one unit provided that there is a separation of at least 2 units between any lower value and any higher value. As an example, if it is stated that the amount of a component or a value of a process variable such as, for example, temperature, pressure, time and the like is, for example, from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, it is intended that values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 etc. are expressly enumerated in this specification. For values which are less than one, one unit is considered to be 0.0001, 0.001, 0.01 or 0.1 as appropriate. These are only examples of what is specifically intended and all possible combinations of numerical values between the lowest value and the highest value enumerated are to be considered to be expressly stated in this application in a similar manner.
[0078] Unless otherwise stated, all ranges include both endpoints and all numbers between the endpoints. The use of about or approximately in connection with a range applies to both ends of the range. Thus, about 20 to 30 is intended to cover about 20 to about 30, inclusive of at least the specified endpoints.
[0079] The disclosures of all articles and references, including patent applications and publications, are incorporated by reference for all purposes.
[0080] The term consisting essentially of to describe a combination shall include the elements, ingredients, components or steps identified, and such other elements ingredients, components or steps that do not materially affect the basic and novel characteristics of the combination.
[0081] The use of the terms comprising or including to describe combinations of elements, ingredients, components or steps herein also contemplates embodiments that consist essentially of the elements, ingredients, components or steps.
[0082] Plural elements, ingredients, components or steps can be provided by a single integrated element, ingredient, component or step. Alternatively, a single integrated element, ingredient, component or step might be divided into separate plural elements, ingredients, components or steps. The disclosure of a or one to describe an element, ingredient, component or step is not intended to foreclose additional elements, ingredients, components or steps.
TABLE-US-00001 ELEMENT NUMBER TABLE photovoltaic device assembly or kit 20 edge piece 50 electrical element of the edge piece 51 edge connector assemblies 52 starter piece 53 filler piece 54 end piece 55 receptacle connector housing 56 separate connector piece 58 integral photovoltaic connector assembly 57 header connector housing 59 main body portion 60 ribs 61 outer surface portion 62 inner surface portion 64 channels 65 side surface portions 66 flashing portion 68 photovoltaic devices 100 photovoltaic cell assembly 110 a photovoltaic cell 111 peripheral edge 112 protective layers 113 electrical circuitry 114 body portion 120 upper surface portion 122 lower surface portion 124 side wall portion 126 active portion 130 inactive portion 135 buss terminal 140 bottom segment 156 base portion 210 first end portion 212 second end portion 214 outer surface 216 locator portion 218 main body portion 222 side body portion 224 body portion 226 spacer piece 400 electrical output 500 pass-through electrical connector assembly 510 electrical transmission lines in PV device 600 flow channel 1100