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Patent · US10530292B1 · B1 · US

Solar roof tile with integrated cable management system

(11) Publication number
US10530292B1
(21) Application number
16/372,646
(22) Filing date
2019-04-02
(30) Priority date
2019-04-02
(43) Publication date
2020-01-07
(45) Date of grant
2020-01-07
(51) IPC
H01R 13/73; H02G 1/02; H02S 20/25; H02S 40/34; H02S 40/36
(52) CPC
  • H02S Generation of electric power by conversion of infrared radiation, visible light or ultraviolet light, e.g. using photovoltaic [pv] modules: 20/25, 40/34, 40/36
  • H01R Electrically-conductive connections; structural associations of a plurality of mutually-insulated electrical connecting elements; coupling devices; current collectors: 13/73
  • H02G Installation of electric cables or lines, or of combined optical and electric cables or lines: 1/02, 3/16
  • H10F Inorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation: 77/939
  • Y02B Climate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications: 10/10
  • Y02E Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution: 10/50
(73) Assignee
Solarmass Energy Group Ltd
(72) Inventors
Paul Julian CROPPER; Brian Roth; Paul Henderson
(54) Title
Solar roof tile with integrated cable management system
(57) Abstract

A solar roof tile with an integrated cable management system includes a roof tile weighing less than 400 lbs per 100 square feet of installed roof area and a photovoltaic solar panel attached to a front side of the roof tile. A rear side of the roof tile includes one or more channels configured to accommodate one or more electrical power cables. A method of routing and securing electrical power cables for a solar roof installation using the solar roof tiles is also disclosed.

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Claims (13)

  1. A solar roof tile assembly comprising: an array of one piece injection molded plastic roof tiles, each roof tile of the array of one piece injection molded plastic roof tiles weighing less than 400 lbs per 100 square feet of installed roof area; and a photovoltaic solar panel attached to a front side of each roof tile of the array of one piece injection molded plastic roof tiles, wherein a rear side of each roof tile of the array of one piece injection molded plastic roof tiles includes at least a first channel configured to accommodate a combiner cable and at least a second channel including a cable cross over chamber, the second channel configured to accommodate an electrical connection between each roof tile of the array of one piece injection molded plastic roof tiles and at least an adjacent roof tile of the array of one piece injection molded plastic roof tiles, each of the first channel and the second channel extending between first and second ends of each roof tile of the array of one piece injection molded plastic roof tiles, the array of roof tiles further comprising at least one first array of roof tiles, at least one second array of roof tiles, and at least one dummy tile, a last roof tile in the at least one first array of roof tiles separated from a last roof tile in the at least one second array of roof tiles by the at least one dummy tile, the at least one dummy tile having first and second ends, the first end of the at least one dummy tile adjacent to the first end of the last roof tile in the at least one first array of roof tiles and the second end of the at least one dummy tile adjacent the second end of the last roof tile in the at least one second array of roof tiles, the at least one dummy tile having at least first and second dummy channels, the first dummy channel either (i) extending in the at least one dummy tile to connect the first channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles to the second channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles, or ii) extending in the at least one dummy tile to connect the first channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles to the second channel of the last roof tile of the second array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles, and the second dummy channel either (a) extending in the at least one dummy tile to connect the first channel of the last roof tile of the first array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles to the second channel of the last roof tile of the second array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles when the first dummy channel is configured according to (i), or b) extending in the at least one dummy tile to connect the first channel of the last roof tile of the second array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles to the second channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles when the first dummy channel is configured according to (ii).
  2. The solar roof tile assembly of claim 1 wherein each roof tile of the array of one piece injection molded plastic roof tiles Includes a hole extending from the front side of each roof tile of the array of one piece Injection molded plastic roof tiles to the rear side of each roof tile of the army of one piece injection molded plastic roof tiles.
  3. The solar roof tile assembly of claim 2, further comprising a junction box located in the hole extending from the front side of each roof tile of the array of one piece injection molded plastic roof tiles to the rear side of each roof tile of the array of one piece injection molded plastic roof tiles, wherein the junction box includes a first DC connector insertable from the front side of each roof tile of the array of one piece injection molded plastic roof tiles, and a second DC connector insertable from the rear side of each roof tile of the array of one piece injection molded plastic roof tiles.
  4. The solar roof tile assembly of claim 3, further comprising one or more electrical connections accessible at the rear side of each roof tile of the array of one piece injection molded plastic roof tiles, the one or more electrical connections passing through the hole extending from the front side of each roof tile of the array of one piece injection molded plastic roof tiles to the rear side of each roof tile of the array of one piece injection molded plastic roof tiles via a junction box, wherein the junction box is attached to a rear side of the photovoltaic solar panel.
  5. The solar roof tile assembly of claim 2, wherein the photovoltaic solar panel comprises one or more photovoltaic solar cells attached to the front side of each roof tile of the array of one piece injection molded plastic roof tiles, the photovoltaic solar panel which in operation provides a single positive output connected to a positive conductor, and a single negative output connected to a negative conductor, each of the positive and the negative connectors passing through the hole extending from the front side of each roof tile of the array of one piece injection molded plastic roof tiles to the rear side of each roof tile of the array of one piece injection molded plastic roof tiles.
  6. The solar roof tile assembly of claim 5, wherein the cable cross-over chamber which in operation accommodates one or more electrical cables that include the positive conductor and the negative conductor.
  7. The solar roof tile assembly of claim 1, wherein the photovoltaic solar panel comprises a printed circuit board, a plurality of photovoltaic solar cells each electrically connected to the printed circuit board, and a front sheet comprising a layer of plastic.
  8. The solar roof tile assembly of claim 7, wherein the printed circuit board, the plurality of photovoltaic solar cells, and the layer of plastic forming at least part of a laminated structure.
  9. The of claim 1, wherein the at least one second channel accommodates a cable that includes at least one of a positive conductor and a negative conductor electrically connected to the photovoltaic solar panel.
  10. The solar roof tile assembly of claim 1, wherein the first dummy channel is used to connect the combiner cable of the last roof tile of the at least one first array of roof tiles to the electrical output connection of the last roof tile in the at least one second array of roof tiles and the second dummy channel is used to connect the combiner cable of the last roof tile of the at least one second array of roof tiles to the electrical output connection of the last roof tile in the at least one first array of roof tiles.
  11. The solar roof tile assembly of claim 1, further comprising a plurality of the first and second arrays of roof tiles and a plurality of dummy tiles, the plurality of the first and second arrays of roof tiles stacked vertically with horizontally aligned first and second arrays of roof tiles separated by one of the plurality of the dummy tiles.
  12. A solar roof tile comprising: a roof tile weighing less than 400 lbs per 100 square feet of installed roof area; and a photovoltaic solar panel attached to a front side of the roof tile, wherein a rear side of the roof tile includes at least one first channel configured to accommodate a combiner cable and at least one second channel including a cable cross over chamber, the at least one second channel configured to accommodate an electrical connection between the roof tile and at least an adjacent roof tile, each of the at least one first and second channels extending between first and second ends of the roof tile, wherein the at least one second channel of each roof tile includes a connector joint at each first end and second end of the roof tile, the solar roof tile further comprising first and second connector clips, the first connector clip located in the connector joint at the first end of the roof tile and the second connector clip located in the connector joint at the second end of the roof tile, each connector clip of the first and second pair of connector clips having a slot to receive a respective connector to prevent axial rotation of the respective connector and a portion that attaches to the connector joint for holding each connector clip of the first and second connector clips in the connector joint.
  13. The solar roof tile of claim 12, wherein each connector dip includes a pair of spaced apart raised pins extending away from a front side of the roof tile when each connector clip is located in the connector joint, the pair of raised pins preventing said axial rotation.

Description

The present application relates to a photovoltaic system, and, in particular, to a solar roof tile.

Photovoltaic solar panels are known which absorb solar and ultra violet rays, transforming them into electrical energy. A photovoltaic solar panel typically includes one or more photovoltaic solar cells. Practical applications of photovoltaic solar panels include photovoltaic power stations, solar vehicles, and solar roofs.

The present application describes example implementations of a solarized roof tile system that include novel features for routing and management of cables carrying electrical power generated by photovoltaic solar panels attached to one or more roof tiles of the solarized roof tile system with the installed arrays of tiles weighing within the same range as asphalt shingle roof systems, typically between 200 lbs and 400 lbs per roofing square (100 square feet).

Some implementations include one or more tiles to which a photovoltaic solar panel has not been attached and/or one or more tiles not used in the generation of electrical power (also referred to in the present application as dummy tiles). The use of dummy tiles can be advantageous to the routing and management of cables carrying electrical power generated by photovoltaic solar panels attached to solarized roof tiles.

One embodiment of the invention includes a solar roof tile with an integrated cable management system. The roof tile is constructed such that unit weight when considering 100 square feet of installed roof area is less than 400 lbs per 100 square feet of installed roof area.

Citations (122)

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Record as JSON 
{
  "publication_number": "US10530292B1",
  "country": "US",
  "kind": "B1",
  "title": "Solar roof tile with integrated cable management system",
  "abstract": "A solar roof tile with an integrated cable management system includes a roof tile weighing less than 400 lbs per 100 square feet of installed roof area and a photovoltaic solar panel attached to a front side of the roof tile. A rear side of the roof tile includes one or more channels configured to accommodate one or more electrical power cables. A method of routing and securing electrical power cables for a solar roof installation using the solar roof tiles is also disclosed.",
  "claims": [
    "1. A solar roof tile assembly comprising: an array of one piece injection molded plastic roof tiles, each roof tile of the array of one piece injection molded plastic roof tiles weighing less than 400 lbs per 100 square feet of installed roof area; and a photovoltaic solar panel attached to a front side of each roof tile of the array of one piece injection molded plastic roof tiles, wherein a rear side of each roof tile of the array of one piece injection molded plastic roof tiles includes at least a first channel configured to accommodate a combiner cable and at least a second channel including a cable cross over chamber, the second channel configured to accommodate an electrical connection between each roof tile of the array of one piece injection molded plastic roof tiles and at least an adjacent roof tile of the array of one piece injection molded plastic roof tiles, each of the first channel and the second channel extending between first and second ends of each roof tile of the array of one piece injection molded plastic roof tiles, the array of roof tiles further comprising at least one first array of roof tiles, at least one second array of roof tiles, and at least one dummy tile, a last roof tile in the at least one first array of roof tiles separated from a last roof tile in the at least one second array of roof tiles by the at least one dummy tile, the at least one dummy tile having first and second ends, the first end of the at least one dummy tile adjacent to the first end of the last roof tile in the at least one first array of roof tiles and the second end of the at least one dummy tile adjacent the second end of the last roof tile in the at least one second array of roof tiles, the at least one dummy tile having at least first and second dummy channels, the first dummy channel either (i) extending in the at least one dummy tile to connect the first channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles to the second channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles, or ii) extending in the at least one dummy tile to connect the first channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles to the second channel of the last roof tile of the second array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles, and the second dummy channel either (a) extending in the at least one dummy tile to connect the first channel of the last roof tile of the first array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles to the second channel of the last roof tile of the second array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles when the first dummy channel is configured according to (i), or b) extending in the at least one dummy tile to connect the first channel of the last roof tile of the second array of roof tiles terminating at the second end of the last roof tile of the second array of roof tiles to the second channel of the last roof tile of the first array of roof tiles terminating at the first end of the last roof tile of the first array of roof tiles when the first dummy channel is configured according to (ii).",
    "2. The solar roof tile assembly of claim 1 wherein each roof tile of the array of one piece injection molded plastic roof tiles Includes a hole extending from the front side of each roof tile of the array of one piece Injection molded plastic roof tiles to the rear side of each roof tile of the army of one piece injection molded plastic roof tiles.",
    "3. The solar roof tile assembly of claim 2, further comprising a junction box located in the hole extending from the front side of each roof tile of the array of one piece injection molded plastic roof tiles to the rear side of each roof tile of the array of one piece injection molded plastic roof tiles, wherein the junction box includes a first DC connector insertable from the front side of each roof tile of the array of one piece injection molded plastic roof tiles, and a second DC connector insertable from the rear side of each roof tile of the array of one piece injection molded plastic roof tiles.",
    "4. The solar roof tile assembly of claim 3, further comprising one or more electrical connections accessible at the rear side of each roof tile of the array of one piece injection molded plastic roof tiles, the one or more electrical connections passing through the hole extending from the front side of each roof tile of the array of one piece injection molded plastic roof tiles to the rear side of each roof tile of the array of one piece injection molded plastic roof tiles via a junction box, wherein the junction box is attached to a rear side of the photovoltaic solar panel.",
    "5. The solar roof tile assembly of claim 2, wherein the photovoltaic solar panel comprises one or more photovoltaic solar cells attached to the front side of each roof tile of the array of one piece injection molded plastic roof tiles, the photovoltaic solar panel which in operation provides a single positive output connected to a positive conductor, and a single negative output connected to a negative conductor, each of the positive and the negative connectors passing through the hole extending from the front side of each roof tile of the array of one piece injection molded plastic roof tiles to the rear side of each roof tile of the array of one piece injection molded plastic roof tiles.",
    "6. The solar roof tile assembly of claim 5, wherein the cable cross-over chamber which in operation accommodates one or more electrical cables that include the positive conductor and the negative conductor.",
    "7. The solar roof tile assembly of claim 1, wherein the photovoltaic solar panel comprises a printed circuit board, a plurality of photovoltaic solar cells each electrically connected to the printed circuit board, and a front sheet comprising a layer of plastic.",
    "8. The solar roof tile assembly of claim 7, wherein the printed circuit board, the plurality of photovoltaic solar cells, and the layer of plastic forming at least part of a laminated structure.",
    "9. The of claim 1, wherein the at least one second channel accommodates a cable that includes at least one of a positive conductor and a negative conductor electrically connected to the photovoltaic solar panel.",
    "10. The solar roof tile assembly of claim 1, wherein the first dummy channel is used to connect the combiner cable of the last roof tile of the at least one first array of roof tiles to the electrical output connection of the last roof tile in the at least one second array of roof tiles and the second dummy channel is used to connect the combiner cable of the last roof tile of the at least one second array of roof tiles to the electrical output connection of the last roof tile in the at least one first array of roof tiles.",
    "11. The solar roof tile assembly of claim 1, further comprising a plurality of the first and second arrays of roof tiles and a plurality of dummy tiles, the plurality of the first and second arrays of roof tiles stacked vertically with horizontally aligned first and second arrays of roof tiles separated by one of the plurality of the dummy tiles.",
    "12. A solar roof tile comprising: a roof tile weighing less than 400 lbs per 100 square feet of installed roof area; and a photovoltaic solar panel attached to a front side of the roof tile, wherein a rear side of the roof tile includes at least one first channel configured to accommodate a combiner cable and at least one second channel including a cable cross over chamber, the at least one second channel configured to accommodate an electrical connection between the roof tile and at least an adjacent roof tile, each of the at least one first and second channels extending between first and second ends of the roof tile, wherein the at least one second channel of each roof tile includes a connector joint at each first end and second end of the roof tile, the solar roof tile further comprising first and second connector clips, the first connector clip located in the connector joint at the first end of the roof tile and the second connector clip located in the connector joint at the second end of the roof tile, each connector clip of the first and second pair of connector clips having a slot to receive a respective connector to prevent axial rotation of the respective connector and a portion that attaches to the connector joint for holding each connector clip of the first and second connector clips in the connector joint.",
    "13. The solar roof tile of claim 12, wherein each connector dip includes a pair of spaced apart raised pins extending away from a front side of the roof tile when each connector clip is located in the connector joint, the pair of raised pins preventing said axial rotation."
  ],
  "description_excerpt": "The present application relates to a photovoltaic system, and, in particular, to a solar roof tile.\n\nPhotovoltaic solar panels are known which absorb solar and ultra violet rays, transforming them into electrical energy. A photovoltaic solar panel typically includes one or more photovoltaic solar cells. Practical applications of photovoltaic solar panels include photovoltaic power stations, solar vehicles, and solar roofs.\n\nThe present application describes example implementations of a solarized roof tile system that include novel features for routing and management of cables carrying electrical power generated by photovoltaic solar panels attached to one or more roof tiles of the solarized roof tile system with the installed arrays of tiles weighing within the same range as asphalt shingle roof systems, typically between 200 lbs and 400 lbs per roofing square (100 square feet).\n\nSome implementations include one or more tiles to which a photovoltaic solar panel has not been attached and/or one or more tiles not used in the generation of electrical power (also referred to in the present application as dummy tiles). The use of dummy tiles can be advantageous to the routing and management of cables carrying electrical power generated by photovoltaic solar panels attached to solarized roof tiles.\n\nOne embodiment of the invention includes a solar roof tile with an integrated cable management system. The roof tile is constructed such that unit weight when considering 100 square feet of installed roof area is less than 400 lbs per 100 square feet of installed roof area.",
  "cpc": [
    "H02S 20/25",
    "H01R 13/73",
    "H02G 1/02",
    "H02G 3/16",
    "H02S 40/34",
    "H02S 40/36",
    "H10F 77/939",
    "Y02B 10/10",
    "Y02E 10/50"
  ],
  "ipc": [
    "H01R 13/73",
    "H02G 1/02",
    "H02S 20/25",
    "H02S 40/34",
    "H02S 40/36"
  ],
  "assignees": [
    "Solarmass Energy Group Ltd"
  ],
  "inventors": [
    "Paul Julian CROPPER",
    "Brian Roth",
    "Paul Henderson"
  ],
  "filing_date": "2019-04-02",
  "publication_date": "2020-01-07",
  "grant_date": "2020-01-07",
  "priority_date": "2019-04-02",
  "application_number": "US-201916372646-A",
  "family_id": "69058750",
  "cited_by_count": 80,
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}

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