EP3555407A1 - System for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildings - Google Patents
System for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildingsInfo
- Publication number
- EP3555407A1 EP3555407A1 EP17825619.4A EP17825619A EP3555407A1 EP 3555407 A1 EP3555407 A1 EP 3555407A1 EP 17825619 A EP17825619 A EP 17825619A EP 3555407 A1 EP3555407 A1 EP 3555407A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cables
- arrays
- frame
- shielding
- tensioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 230000033001 locomotion Effects 0.000 claims description 24
- 230000006870 function Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 4
- 239000007790 solid phase Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 230000001276 controlling effect Effects 0.000 description 11
- 230000004913 activation Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 241001131688 Coracias garrulus Species 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000009347 mechanical transmission Effects 0.000 description 2
- 229920001780 ECTFE Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
- E06B9/362—Travellers; Lamellae suspension stems
- E06B9/364—Operating mechanisms therein
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B2009/2482—Special shape
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/68—Operating devices or mechanisms, e.g. with electric drive
- E06B2009/6809—Control
- E06B2009/6818—Control using sensors
Definitions
- the present invention relates to a system for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildings.
- systems are known characterized by discreet elements that rotate (i.e. blades) or that retract (i.e. packageable shading devices), parallel wooden or metal blade or paddle systems controlled to be oriented at variable angle, arranged in horizontal or vertical direction, applicable in front of the facades of buildings, especially at glass doors or windows.
- Said systems are capable of determining a shadowing of the facades depending on the angle of orientation of the blades or paddles.
- Roller shielding systems textile or formed by rigid segments
- retractable curtains retractable curtains
- blades horizontal or vertical movable or fixed
- permanent elements canopies, recesses, niches, etc.
- Said known systems are not devoid of drawbacks: for example, they are provided with complex control systems that generally act on all the blades, with mechanical actuators subject to wear and maintenance.
- said systems have known control problems in the case in which their management software is not capable of comprehending the specificity of the site and the relative profile of use of the building by the users.
- An object of the present invention is a system for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildings, characterized in that it comprises:
- a shielding system comprising one or more side-by-side arrays of cables
- said actuation/control system being adapted to operate as a function of the temperature and of the level of solar and light irradiation that hits it, and being adapted to keep the cables of said one or more arrays parallel therebetween in a substantially cylindrical configuration, in a position such as to generate the highest shadowing in a condition of highest temperature and irradiation, and being also adapted to result in a mutual torsion of the cables of the relevant array, until assuming a double cone configuration (hourglass), in a position such as to generate the highest lighting in a condition of lowest temperature and irradiation;
- tensioning/balancing system being adapted to keep the cables of said one or more arrays either fixed to said frame or in longitudinal controlled translation with respect to said frame;
- a particular object of the present invention is a system for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildings, as better described in the claims, which form an integral part of the present description.
- figures la and lb show a front view of the shielding system object of the present invention respectively in a condition of highest lighting (lowest shadowing) and of highest shadowing (lowest lighting) of the back area: the transition between highest and lowest shadowing allows a variation of permeability to radiation by the system;
- FIGS. 2 and 3 diagrammatically depict two types of movement made by the shielding system and actuation mechanism
- FIGS. 4 and 6 respectively show an exploded and section view of the components of an embodiment of the actuation and control system of the shielding system
- FIGS. 5 and 7 respectively show an exploded and section view of the components of an embodiment of the tensioning/balancing system of the shielding system
- figure 9 shows an application and shape variant of the shielding system the object of the present invention, in the case of application on planar facade having rectangular perspective geometry;
- figure 10 shows a further application and shape variant of the shielding system in the case of irregular outline and/or frame
- figures 12a, 12b, 12c show three possible locations of the shielding system, respectively inside, outside a wall, and interposed in a double shell wall;
- figure 13 shows a further application and shape variant of the shielding system in indoor room.
- the system comprises three main components (see now figure 1):
- the shielding system is surrounded by a frame D enclosing it, which has the function of supporting the system.
- the actuation and control system A is connected to a side of the frame and the tensioning/balancing system C is connected to the opposite side.
- the shielding system B comprises one or more side-by-side arrays of cables, each array constrained to an end on tensioning elements part of the actuation/control system, which are adapted to keep the cables of the array parallel to one another in substantially cylindrical configuration Bl, and in a position such as to generate the highest shadowing (fig. la) of the back surface, with lowest transfer of light, while said tensioning elements are also adapted to generate a mutual torsion of the cables of each array, up to taking on a double cone configuration (hourglass) B2 of the array, therefore in a position such as to generate the highest lighting (fig. lb) of the back surface, with highest transfer of light and highest transparency admissible with the geometry of the modified system.
- It comprises a front side 1 in direct contact with the sun light or light flow, made by means of a transparent surface, the front side of which is adapted to receive the light radiation which therefore may enter the box.
- the surfaces of the other sides of the thermal box instead are adapted to retain and absorb the incident sun light; they are for example made of metal painted with black paint, with increased absorbency over the whole spectrum of the sun light (250-2500 nm), and externally are protected by a layer of insulating material having variable thickness as a function of the place of installation of the system.
- Such technical features indeed allow having a protected environment with an internal temperature varying as a function of the incident sun light or light radiation, as a function of the capacitive function of the air contained in the system, but also of a radiating one due to the particular geometry and materials used.
- the thermal radiation at the infrared reintroduced by the superheated surfaces remains confined inside the thermal box, thus contributing to the increase of temperature thereof.
- the system for controlling the movement firstly provides an element made of a phase- transition material, such as for example a shape-memory spring 5 which, in the specific case, has activation temperatures - austenite start - and deactivation temperatures - martensite finish - and the relevant hysteresis cycle defined based on the range of temperatures in which the system is applied, and the useful life required by the designer.
- Said spring is capable of varying its elongation (thus simultaneously generating a force and an elongation which consists in the variation of the geometry) as a function of the temperature. As the elongation of the spring varies, it exerts a force proportional to its characteristic constant, and this force results in movements and rotations in the system.
- the spring 5 is enclosed within a cylinder 3 which has the function of avoiding an unstable behaviour of the spring, thus optimising all the movement generated for moving the shield.
- the cylinder may be made of plastic or metal.
- the transformation system comprises:
- first head plate 7 comprising a flange 7' fixed to the frame D, and a hollow cylinder 7" in which the system for controlling the movement (5, 6, 8, 9, 10) axially slides.
- a second head plate 12 comprising a flange 12' and a hollow cylinder 12" in which the hollow cylinder 7" of the first head plate can slide, the hollow cylinder 7" providing pins 13 that engage inside corresponding helical slots 12" ' located in the hollow cylinder of the second head plate.
- the latter is fixed to the transmission element 10 so that an axial movement of the latter causes an axial roto-translational movement of the second head plate as a result of the helical shape of the slots 12" ' .
- Connected on the outline of the flange 12' of the second head plate are the ends of the cables of the relevant array and they are fixed by means of a circular-crown pressing element 11 which in turn is fixed on the outline of the flange 12' .
- the outline of the flange 12' comprises a series of grooves for fixing the ends of the cables which may be equipped with suitable terminals of specific thickness.
- the roto-translation of the second head plate 12 allows a torsion of the cables and therefore, a dynamic behaviour of the shielding by adjusting the transmission of sun light and light radiation, as mentioned above.
- the outside application of such cables could create problems due to fouling, the possibility that debris gets caught therein and wears them and due to the presence of forces that make them move and stress them in an undesired manner (such as wind).
- a layer of transparent plastic material placed externally, constrained to the frame D, with a function of protection while keeping upper and lower openings to allow the passage of air.
- the clear layer of plastic material may be for example, made of ETFE or ECTFE, fluorine-polymer, or glass.
- a tensioning/balancing system C of the shielding system is also provided for each array of cables, and therefore the arrays of cables are tensioned individually and independently of one another.
- first tail plate 18 which comprises a flange 18' fixed to the frame D in a position opposite to the fixing one of the first head plate, and a hollow cylinder 18" .
- the other ends of the cables of the relevant array are connected on the outline of the flange 15' of the second tail plate, and they are fixed by means of a circular-crown pressing element 17 which in turn is fixed on the outline of the flange 15', therefore in an equivalent manner as the fixing system of the head part described above.
- the geometry of the "head” and “tail” plates preferably has a circumference, but it could also be elliptical, and it is possible that they have different diameters, thus resulting in frusto- conical geometries, considering also the presence of the cables constrained to them.
- This particular type of geometry allows both varying the overall aspect of the system, and also creating a deformed double cone one with two cones of different height, following the rotation of the system.
- the manual activation and deactivation of the system is always guaranteed by means of a mechanical transmission that allows controlling locking and releasing the movable lower tensioning element.
- a mechanical transmission that allows controlling locking and releasing the movable lower tensioning element.
- Such system allows generating a greater force than the one generated by the shape memory spring, thus allowing the repositioning in the desired status while maintaining the integrity of all the components, and therefore without damaging them.
- the mechanical transmission allows the forced translation/rotation of the system by forcing the springs to extend/contract independently of the thermal or light stimuli.
- the frame D could be a non-closed structure, only comprising the stretches of "head” and “tail” suitably fixed in the rear- structure housing the shadowing system.
- one thermal box may be provided for several arrays of cables, adapted to control individual systems for transmitting movement and rotation for each array of cables.
- the thermal box may be made in a similar manner as the preceding variant, as well as the transmission systems, with implementing variants within the reach of those skilled in the art.
- Active alternatives may include electromechanical actuators.
- the activation of such actuators occurs following an electric input regulated by one or more control sensors and systems and originating from electric network or photovoltaic system.
- Another variant is a solar panel system which generates actuation current.
- the shielding system is applied externally to the facade of a building, positioned in front of the part of transparent shell (widows/doors) so as to modulate the daylighting of the indoor room and at the same time control the solar contributions.
- Such system may take on different shapes depending on the ones of the surface to which it is applied. For example, it may take on a curved shape to allow the application also on facades of buildings having plan curvature (fig. 11), or an irregular shape of the outline for windows having non-rectangular perspective geometry (fig. 10).
- the system may be placed, with respect to the facade of the building, internally (fig. 12a), externally (fig. 12b) or in gap of facade having double shell (fig. 12c).
- the system may also be applied internally to rooms to vary the transparency/shadowing of transparent internal partition walls, for non-limiting example in the case of a study used as an office (fig. 13).
- the solar shielding system proposed has a dynamic and adaptive behaviour towards the different environmental conditions by providing localised solar protection based on the external temperature and the levels of sun light present on the surface of facade.
- the innovation also consists in the hourglass shape of the solar shielding which sets it out from the other known movable shielding systems: while the latter are normally characterized by discreet elements that rotate (i.e. blades) or that are retracted (i.e. roller blinds), the solar shielding system proposed transfers a simple translational movement in a rotation of a component that transforms an hourglass into a cylinder and vice versa.
- the hourglass shape additionally is particularly interesting because it allows ensuring an optimal view of the outdoor environment while effectively shielding the radiation - especially in the summer and for increased angles of solar height.
- the translational movement of the arrays of cables is for example, provided by a system of shape memory springs which activation does not require electric energy or any electronic control, rather it takes advantage of the incident sun light on the facade of the building which causes an increase of the temperature of the thermal box in which the springs are enclosed.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT102016000128119A IT201600128119A1 (en) | 2016-12-19 | 2016-12-19 | SCREENING AND CONTROL SYSTEM OF SOLAR RADIATION OR LUMINOUS FLOW DERIVING FROM ARTIFICIAL SOURCES, ESPECIALLY BY APPLICATION TO BUILDINGS |
PCT/IB2017/058004 WO2018116102A1 (en) | 2016-12-19 | 2017-12-15 | System for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildings |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3555407A1 true EP3555407A1 (en) | 2019-10-23 |
EP3555407B1 EP3555407B1 (en) | 2021-01-20 |
Family
ID=58545117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17825619.4A Active EP3555407B1 (en) | 2016-12-19 | 2017-12-15 | System for shielding and controlling sun light or the light flow coming from artificial sources, especially for application to buildings |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3555407B1 (en) |
ES (1) | ES2863314T3 (en) |
IT (1) | IT201600128119A1 (en) |
WO (1) | WO2018116102A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110306917A (en) * | 2019-07-30 | 2019-10-08 | 广州康普顿至高建材有限公司 | A kind of sun-shading louver |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2459872A1 (en) * | 1979-06-27 | 1981-01-16 | Mulot Suzette | ADJUSTABLE AND INSULATING SCREEN |
ITRM20070464A1 (en) * | 2007-09-11 | 2009-03-12 | Marzia Compagnoni | VERTICAL CURTAIN IN 3D COMPOSED BY FABRIC PANELS ATTACHMENT DISCONNECTION THAT TURN AROUND TRIANGULAR OR OVIDID SHAPE BASES WITH THE POSSIBILITY TO INSERT ELECTRIC LIGHTS TO CREATE THE EFFECT OF A LAMP |
EP2540951B1 (en) * | 2011-07-01 | 2015-04-22 | Schenker Storen Ag | Venetian blind with twistable lamellae |
CN104641304A (en) * | 2012-09-21 | 2015-05-20 | 皇家飞利浦有限公司 | A unified controller for integrated lighting, shading and thermostat control |
US9540871B2 (en) * | 2014-04-08 | 2017-01-10 | David R. Hall | Motorized gearbox assembly with through-channel design |
-
2016
- 2016-12-19 IT IT102016000128119A patent/IT201600128119A1/en unknown
-
2017
- 2017-12-15 EP EP17825619.4A patent/EP3555407B1/en active Active
- 2017-12-15 WO PCT/IB2017/058004 patent/WO2018116102A1/en active Application Filing
- 2017-12-15 ES ES17825619T patent/ES2863314T3/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3555407B1 (en) | 2021-01-20 |
WO2018116102A1 (en) | 2018-06-28 |
ES2863314T3 (en) | 2021-10-11 |
IT201600128119A1 (en) | 2018-06-19 |
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