Solar thermal collector

The flat-pack solar thermal collector with a vertically spaced conduit coil and reflective sheets addresses the inefficiencies and installation challenges of existing collectors, enhancing efficiency and ease of use across various locations.

WO2025202145A1PCT designated stage Publication Date: 2025-10-02SOLARISKIT LTD
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Patent Information

Application Number
PCT/EP2025/058022
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-27
Filing Date
2025-03-24
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

Existing solar thermal collectors are bulky, costly, require precise positioning, and are prone to overheating and damage, making them unsuitable for various locations and installations, especially in areas with inadequate infrastructure.

Method used

A flat-pack solar thermal collector design featuring a conduit coil supported by a column with guides that create vertical spacing between adjacent portions, combined with reflective sheets to enhance radiation absorption and reduce optical losses, allowing easy assembly without tools.

Benefits of technology

The design improves efficiency by reducing optical losses and enhancing radiation absorption, while being lightweight and easy to assemble, transport, and relocate, suitable for diverse locations and installations.

✦ Generated by Eureka AI based on patent content.

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    Figure EP2025058022_02102025_PF_FP_ABST
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Abstract

The present invention provides a solar thermal collector adapted to be assembled from a flat pack configuration, comprising a conduit configured to carry fluid and to absorb radiation; and a column configured to support the conduit, the column comprising guides for securing the conduit in place such that the conduit forms a coil, wherein the spacing of the guides means that adjacent portions of the conduit are not in contact with one another, and wherein over 80% of the space between adjacent portions of the conduit does not align with a space between adjacent portions of the conduit on the diametrically opposite side of the coil.
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Citation Information

Patent Citations

  • Solar thermal collector

    WO2020254822A1

  • Demountable solar energy collector has heat absorbing flexible pipes threaded over segmented supports in a quadratic or half spherical shape

    DE202005009769U1

  • Improved solar hot water system

    GB2609022A

  • Solar heater

    US2402326A

  • Solar collector

    US4385624A