FR2978503A1 - Apparatus for converting wind power to electric power e.g. to decorate building's frontage, has screens forming turbines positioned to amplify wind friction effects and placed vertically, horizontally/obliquely according to wind direction - Google Patents

Abstract

The apparatus has a perforated flat screen (1) divided by rotative vertical sluice valves (3), where the screen serves as a support (2) to other screens to form gripping surfaces (S, S1) of wind in which the sluice valves and intermediate empty spaces (VI) are alternatively arranged. The spaces are distributed in height wise, and direct flow of wind. The screens form turbines that are positioned to amplify friction effects of the wind on an assembly of the device in a position. The screens are placed vertically, horizontally or obliquely according to direction of the wind in the position.

Description

The present invention relates to a rotary vane apparatus for converting wind energy into electrical energy constituting a flat surface for sensing wind flow and a kit of rotating vane apparatus (s). as well as the use of this kit.

In particular, the invention relates to a set of device (s) rotary vane (s) forming flat screens and having a set of louvers. The device kit (s) with vane (s) is intended for the sectors of the energy. It would also make it possible to design elements of occultation of living spaces and solar protection adapted to the treatment of the facades of buildings.

The present invention relates to an apparatus transforming wind energy into electrical or mechanical energy characterized in that it constitutes; a device forming a flat screen, delimited and quadrangular wired providing a capture surface provided with rotating elements with a vertical axis and constituting a wall component, each flat screen constituting a turbine and comprising a set of louvers intended to receive at least two rotary blades juxtaposed vertical axis, said apparatus being arranged vertically or horizontally depending on the direction of the wind in a position in which all of the assembled devices constitute a flat surface with blades of variable size and power designed to capture and channel the wind flow.

In the field of energy, it is common to sell to the public small wind turbines to install in areas outside homes, on the roofs of buildings or on private terraces. These items are generally designed independently of other domestic uses (sun protection, visual screen ...) and are bulky.

Similarly, it is not possible to assemble separate devices to form constructive sets of different sizes.

The invention aims to provide a screen to be installed along the facades of buildings, against walls, on porches or terraces. The ventelles device can be decorated with an animation and be used for advertising purposes. 2 The goal is to also design inexpensive screens to realize and easy to implement, to assemble and to install. Finally, the screen will occupy very little space in the living areas and allow the setting in continuous movement of the ventelles by very weak winds. The invention also aims to promote the availability of screens of very different sizes to obtain different powers.

SUMMARY OF THE INVENTION To this end, the subject of the invention is an apparatus transforming wind energy into electrical energy, characterized in that it comprises at least one flat perforated screen (1) divided by lamellae ( 3), said screen serving as a support (2) for other screens to form a gripping surface S and S1 of the wind V in which alternating rotating vertical louvers (3) and empty intermediate spaces VI distributed at any height and intended to channel the flow of the wind V, each screen (1) forming a turbine, the entire arrangement of the turbines being able to amplify the effects of wind friction V on the entire device, in a position in which the screens (1) of the apparatus are arranged vertically, horizontally or obliquely according to the direction of the winds.

According to a first embodiment, each screen comprises at least two lamellae provided with four flat lamellae and substantially inscribed in a star shape.

In a second embodiment, the turbine screen admits at least two lamellae comprising at least two substantially off-axis slightly curved lamellae delimiting, for each, a hollow volume. Finally, according to a third embodiment, the turbine consists of four lamellae comprising four substantially off-axis slats delimiting, for each, a hollow space.

According to these three embodiments, the vane is rotatable and independent of the rigid component constituting in the thickness and around the turbine a fastener of the screens and assembly of several devices.

In a variant that is not illustrated, the rotary louvers comprise helical blades twisted around the pivot of rotation. This variant makes it possible to obtain a good hold in the wind in a continuous way and a setting in movement of the vane by very weak winds. In this embodiment, the system is compact since the ventelle is located along the vertical pivot.

In order to form kits, the quadrangular and wired quadrangular screens provide a capture surface and are attached and connected to other screens. These screen kits make it possible to build wall assemblies adapted to the facades of buildings.

According to any embodiment, the louvres may, if necessary, be fixed non-definitively to the rigid support, in order to constitute rotating, retractable and removable elements. Similarly, according to any embodiment, the rigid support of each screen comprises fixing systems adapted to the assembly of several wired devices and their connection to the entire screen device.

Another object of the present invention relates to a set of device (s) rotary vane (s) characterized in that said vane include slats defining a surface covered with a flexible photovoltaic film and thin enough to capture the sun's rays when the louvelles constituting the turbines are at a standstill. Advantageously, the apparatus can generate electricity by channeling wind flows or by capturing the sun's rays.

The present invention also relates to the use of a kit (s) rotary vent (s) (s) according to one of the above characteristics for the decoration of building facades, sun protection 35 buildings or for the occultation of living spaces.

4 Detailed description of the invention

The invention will be better understood, and other objects, details, features and advantages thereof will become more apparent in the following detailed explanatory description of several particular embodiments currently preferred, given for illustrative and non-limiting purposes only. non-limiting, with reference to the accompanying schematic drawings in which: Figure 1 is a front view of the screen; Figure 1A is a horizontal sectional view of the screen and the various vertical louvers; Figure 1B is a vertical sectional view of the screen and the vertical pivot; Figure 1C is a side view of a screen positioned parallel to a wall M; - Figure 2 is a front view of a variant similar to Figure 1 but showing a screen incorporating lamellae whose lamellae are curved; Figure 2A is a horizontal sectional view of the variant Figure 2; Figure 3 is a front view of another variant similar to Figures 1 or 2 but showing a panel incorporating lamellae whose lamellae are curved substantially distributed in a star; Figure 3A is a horizontal sectional view of the variant Figure 3; Figure 4 is a front view of an equipment kit consisting of at least two assembled screens constituting a screen assembly. - Figure 5 is a front view of another kit variant, the apparatus being composed of four assembled screens constituting a screen assembly of greater power and size.

FIG. 1 shows a screen (1) with rotating louvres (3) comprising a support (2) consisting of at least two louvres (3) and a system of louvres (4) made of light materials, of type metal, wood, plastic tarpaulin or equivalent, vertically distributed and fixed to a rigid pivot (5) located between the upper and lower edges of the support (2). In the embodiment shown in this figure, the kit assembly, once mounted, forms a perforated screen or alternates the louvers (3) and empty intermediate spaces VI vertically organized.

In Figure 1A, it is noted that the lamellae (3) comprise slats (4) distributed substantially in a star and fixed to a rigid vertical axis (5) constituting a pivot and located between the upper and lower edges of the support (2). In the embodiment shown in this figure, the entire ventelle (3) of the screen (1) is, where appropriate, retractable support (2). The integrated wiring system on the screen (1) allows the connection of several screens between them. In this case, the medium (2) may contain the wired network. According to another characteristic of the invention, the louvres (3) have a width L sufficient to be greater than the section S of the support (2). Thus, the flows of the wind move parallel to the support (2) and cause the rotation of the lamellae (3) by friction against the end and protruding portions of the slats (4) of the device.

In Figure 1B, there is shown a screen (1) in vertical section.

The screen comprises in its upper and lower parts a support (2) rigid metal or equivalent. The lamellae (4) of the lamellae (3) are integral with a pivot (5) fixed at both ends to the support (2).

In Figure 1C is illustrated, in profile, the panel (1) being in the form of a rectilinear element, narrow and vertical. The panel may be positioned, for example, perpendicularly or obliquely to a wall M whose space E located between the screen (1) and said wall forms an acceleration corridor of the wind flows. Indeed, in this positioning mode, the space E provided along the wall M between the screen (1) and said wall varies in size, channels and influences the speed of the wind V. Thus, at this location the smaller the distance between the screen (1) and the wall M, the greater the wind speed. The slats (4) are pushed by the wind in their extreme part. The louvers (3) then describe a rotary movement around the pivot (5) to produce electrical energy.

Figure 2 shows a first variant with rotating blades (3) provided with at least two curved strips (4) for providing a recessed space for channeling the flow of wind. Both slats are attached to a pivot (5).

FIG. 2A also shows this embodiment variant of the plate (3) whose curved strips (4) are slightly off-axis. This variant makes it possible to start the louvers at low wind speed. Similarly, the system, quiet, offers a small footprint.

FIG. 3 illustrates another embodiment of the vane (3) whose curved sipes (4) are slightly offset and distributed substantially in a star around the pivot (5). This variant makes it possible to start the louvers at low wind speed and offers a higher electrical production capacity than the previous variant.

Figure 3A shows the variant and the system of louvers (3) lamellae (4) arranged in a star. In this device, the remaining space VI, located between the louvers (3) is narrower than in the other variants. The gripping surface of the wind is greater considering the greater number of curved slats.

In FIGS. 4 and 5, several screens (1) are grouped together in order to form screen kits of variable size and power. These kits determine S and S1 wind gripping surfaces that can form large assemblies of screens (1). They are intended to simultaneously allow the production of electricity and the punctual protection of the facades of buildings of the sun or direct views. Similarly, they constitute solar energy devices since each flat slat can be covered, if necessary, with a photovoltaic film.

Although the invention has been described in connection with several particular embodiments, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they is within the scope of the invention.

Claims (10)

CLAIMS1- Apparatus transforming wind energy into electrical energy, characterized in that it comprises at least one screen (1) flat perforated, divided by louvers (3), said screen serving as support (2) to other screens to form a gripping surface S and S1 of the wind V in which alternating vertical rotating blades (3) and empty intermediate spaces VI distributed at any height and intended to channel the flow of the wind V, each screen (1) forming a turbine , the entire disposition of the turbines being able to amplify the effects of friction of the wind V on the entire device, in a position in which the screens (1) of the apparatus are arranged vertically, horizontally or obliquely according to of the wind direction. 2- Apparatus according to claim 1, wherein the screen (1) flat and perforated, is a turbine divided by rotary louvers (3), distributed at any height alternating with empty intermediate spaces VI organized vertically. 3- Apparatus according to one of the preceding claims, wherein the lamellae (3), optionally retractable, comprise lamellae (4) distributed substantially in a star and fixed to a rigid vertical axis constituting a pivot (5). 4. Apparatus according to claim 3, wherein the pivot (5) between the upper and lower edges of the support (2) is fixed at both ends thereof. 5. Apparatus according to one of the preceding claims, wherein the louvres (3) admit a width L greater than the section S of the support (2). 6- Apparatus according to one of the preceding claims, in a wiring and connection system are integrated in the screen (1) to make the electrical connection of several screens together. 7- Apparatus according to one of the preceding claims and another embodiment, wherein the rotary lamellae (3) are provided with at least two strips (4) curves intended to provide a recessed space. 8- Apparatus according to one of claims 3 to 7 and another embodiment, wherein the rotary lamellae comprise helical blades twisted around the pivot of rotation. 9- Device kit comprising at least two independent screens as defined in one of claims 1 to 8, characterized in that said screens (1) wired are assembled to form a gripping surface S and S1 distributed parallel, perpendicularly or obliquely to a wall M whose space E, situated between the screen (1) and said wall forms an acceleration corridor of the wind flows. 10- Use of a device kit according to claim 9 for the capture of wind and solar energy or for the decoration of building facades or solar protection of living spaces.