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SYSTEM FOR SHIELDING AND CONTROLLING SUN LIGHT OR THE LIGHT FLOW COMING FROM ARTIFICIAL SOURCES, ESPECIALLY FOR APPLICATION TO BUILDINGS

Summary

Adaptive shading device actuated by shape memory alloy (SMA) springs, and stimulated by light and/or solar radiation.

Technology Benefits

Passive system - no use of energy; Possibility of switching between automatic and manual operation,
therefore allowing building users to override the system; Reduced number of components and complexity; Reduced risk of failure; Reduced cost of maintenance, compared to motorised systems; Noiseless actuation; Customisable to different size and geometry of the facade; Adaptable to various facade systems (wall construction, stick
system curtain wall, twin skin, unitised system); Allows a varying degree of shading across the facade, hence
regulating solar radiation and/or light locally, preserving view to
the outside; Allows partial shading due to the gradual activation of the
actuators, which allows intermediate configuration of the cylinders
between the two extreme positions (cylinder and “hourglass”).

Technology Application

Suitable for application to building facades, for new-built or as part of a retrofitting. Building types can include commercial, residential,
entertainment, culture, etc. The system can adapt various geometry of
the building envelope, and can be developed for external or internal
installation, as well as within the cavity of a twin skin façade or coupled
with a transparent interior wall, as an interior privacy screen among
two adjacent rooms.

Detailed Technology Description

The system can be divided into four main components: rotating cylinders, which allow variable solar radiation and/or
light through due to their shifting geometry, changing between
cylindrical to “hourglass” shape; thermal box, which captures solar radiation and/or natural light
and transforms it into heat, therefore raising the internal
temperature inside the box; SMA springs or shape memory materials, which are hosted in
the thermal box and can change their elongation factor under a
certain temperature stimulus; transmission system, which converts the translation movement
from the SMA springs into rotation to the cylinders. The system can also work without thermal box and SMA springs, i.e.
consisting of rotating cylinders and transmission system connected to a
manual actuator or a motor (e.g. for internal applications).

Type of Cooperation

Licensing / Joint development partnership

Application Date

19/12/2016

Application No.

102016000128119

Classes

non trovato

ID No.

ABC.16.031.A

Country/Region

Italy