FR3011286A1 - AERODYNAMIC MEANS ADAPTABLE ON AN EXISTING REVERTER, PROVIDING VERY VARIABLE ELECTRIC WIND POWER, TO LIGHTING SYSTEMS WITHOUT ENERGY STORAGE OR SOLAR ENERGY UTILIZATION - Google Patents

Abstract

The invention relates to an aerodynamic device with renewable energy resistant to bad weather and adaptable on existing lighting means, new or new design such as street light, lamppost, candelabrum to illuminate places where the lighting is absent for economic reasons. This device is equipped with: • a self-adaptive wind turbine with an overall diameter of up to 40 inches with a vertical axis, based on the Darrieus concept composed of at least 3 curved aerodynamic variable profile blades with 3D scalable surface rotating on their axis, equipped with informal signage, • an electrical energy generator producing electrical energy not stored on battery or relayed by solar energy, from said wind turbine set in motion under the action of low winds of the order of 2 m / sec, • additional and / or relayed lighting means comprising a plurality of light-emitting diodes (LED or LED) and automatically switched by natural brightness decrease and / or presence detection, and characterized in that said wind turbine is assembled in or on the mat of said existing lighting means.

Description

The present invention relates to an aerodynamic device for autonomously providing renewable electric energy to existing, new or newly designed lighting systems, tracks, parks and monuments for public and private use or any other use. This device: - Is easily adaptable on street light, lamppost or candelabrum already installed, new or new design, - Is able to provide energy under weak and strong coastal winds, - Does not store the electrical energy produced and this gets rid of the use of polluting batteries, In addition to fighting against climate change and actively contributing to the reduction of the greenhouse effect, many small towns or municipalities for reasons of economy extinguish the lighting of the public way past a certain time. It is about security, the welfare of people and in some cases a reduced commercial activity. Unfortunately, this procedure is likely to be repeated and worsen "Ad vitam aaternam" if we believe experts who believe that by 2015, the increase in electricity will be of the order of 30%.

Of course, there are a number of projects that deal with the production of energy to supply streetlamps, candelabras and a few companies have made operational street lights available on the market capable of providing enough energy to guarantee their autonomy. 3, see 4 days.

However, they are redesigned in their entirety and usually use in pairs, energy produced by wind turbine and photovoltaic panel stored on batteries or capacitors.

This concept inevitably results in: - a prohibitive street lamp price and therefore impossible to finance for small towns or municipalities, - preventive and curative maintenance (battery, photovoltaic, pollution, recycling, etc.) - a design generally very unattractive and not in harmony with the landscape. This device according to the invention is composed inter alia of a vertical wind turbine with a 3D aerodynamic variable profile of the "Darrieus" type, named after its French inventor and designer in the 1930s. The rotor of this wind turbine comprises vanes (blades). . In this case, this type of wind turbine finds application in the technique of converting wind energy into mechanical energy, in particular by rotating an electric generator of the dynamo or alternator type incorporated or reported in or the structure of existing or newly designed lighting systems. US-A-4,200,904 discloses a street lighting system comprising a mat, a height-based lighting device, equipped with a conventional light bulb, a solar panel placed at the top feeding batteries. US-A-6601 984 discloses a lighting system of the same type comprising either a solar panel or a horizontal axis wind turbine. FR 2 926 611-A1, in turn, describes a large-scale aerogenerator close to 1.40 meters in diameter mixing the principle of wind turbines Darrieus and Savonius combined with solar energy and "cumulative energy on battery." Vertical wind turbines typically have the particularity of withstanding difficult to strong winds and On the other hand, the device according to the invention relates to the adaptation or integration of a wind turbine of adaptive geometry to a public or private lighting system offering the particularity by its aerodynamics of being able to operate under a wide range of variable winds ranging from gusting winds to light winds, thus covering a wide range of operation. In the case of winds assimilated to squalls, the wind turbine of variable geometry during operation will fall out of service in the folded position, thus meeting a safety need. Thus, this wind turbine integrated lighting system sufficiently sensitive to low winds close to 2m / s will be able to provide energy consumed instantly. This device has the advantage of being fully autonomous because it does not require energy at startup unlike some wind turbines. Therefore, the invention relates to the concept of the wind turbine which by its sensitivity to low winds, thus free from any source of energy storage in the form of capacitor or battery, the invention relates to the coupling wind turbine / dynamo which by its performance will in no case be relayed by any other energy production such as energy supplied by photovoltaic panel. The invention relates to the wind turbine device which advantageously adapts and integrates directly into the extension of the structure of the street lamp, streetlamp or candelabrum floor, so as to preserve a certain aesthetics. Nevertheless, this device can be attached to the mat if the structure of the lighting system does not allow it. The invention relates to aesthetics, which is provided with significant signposts that are very much appreciated, especially for the lights installed along the coast and shorelines. Thus, a color signage assimilated to the colors of the green or red flags will clearly indicate to summer visitors the possibility of bathing. Indeed, when the wind will be lower than a given value, the 10 blades composing the wind turbine will be in open position (deployed) and will indicate by their open position, the green color of the interior of the dawn (intrados side) which will be covered. On the other hand, during the progressive closing of the blades due to a wind being present with a stronger intensity, the RED color of which each blade will be coated on the extrados side 15 (external) will be visible and will make it possible to inform of the dangerousness of a swimming at the given moment. The invention relates to the functionality of the wind system providing the energy that is always activated, whatever the time of day, so that the signage is always visible on each street light equipped with this system. It will be possible to identify directly at the present moment, the intensity of the wind informing at the precise place of the bathing made possible or not. The invention relates to the level of natural (daylight) or artificial brightness (the lighting switches off to meet a reduction in energy cost) which, when it is reduced, an electronic coupling activates the circuit connecting the wind turbine. to lighting and thus takes over. The invention relates to energy relay producing light that can provide energy to additional pedestrian lighting thus ensuring the body safety necessary for any movement. The entire concept consisting of a means producing energy, in this case an adaptive geometry wind turbine coupled to a productive source assimilated for example to a dynamo, an electronic switch operating at a certain brightness, is integrated. in or on the structure of a similar street lamp or gantry to provide light to passers-by and / or vehicles in response to energy savings. The invention relates to the concept of the wind turbine which is designed with materials resistant to the weather (effort, salt spray, etc.) to meet a curative maintenance as small as possible. The invention relates to the concept as a whole that meets ecological needs since it does not use an energy capacitor (capacity, battery, etc.) and is made from recyclable materials not using treatments. surface based chemistry. The invention relates to the addition of the additional lighting system for the well-being of pedestrians, which is an "LED racket" type of lighting designed to provide pedestrians with sufficient light without being too energy efficient with low wind turbine rotation ( The invention relates to the concept that will be used primarily on the sea coast where it can be used fully because the average wind speed is around 5 m / sec. On the other hand, one of the major advantages of the device lies in the fact that the force of the wind required to activate the system remains very low, and as a result, other geographical locations may be exploited. Indeed, the wind spread over the entire globe allows a use of the present invention almost anywhere because according to data from the "World Energy Resources Council", 27% of the Earth's surface is swept by a wind of The invention relates to the concept that meets the needs of some coastal municipalities which for reasons of economy deprive themselves of public lighting at the risk of corporally penalizing their fellow citizens, In response to light pollution, the invention relates to The invention relates to the design of the wind turbine and its coupling to the dynamo, the low noise level which does not exceed 15 decibels in intensive operation. and thus respects the neighboring fauna, as well as the persons living nearby, the invention relates to the concept which is adaptable on the currently existing lighting means, used s and future. Unlike other projects, it is not envisaged to replace the lamppost or other support to be able to benefit from this technology. Thus, the Commons with a limited budget can benefit, The invention relates to the concept that allows in certain cases to eliminate the so-called "liana" air links very unattractive, 15 or dangerous futures, the invention relates to the concept that allows to communicate in addition to information that can be safe as the example cited above of the green or red signal similar to the flag authorizing a bathing or not, but also advertising that allows in the long run to get into the depreciation of the concept, in a form of embodiment of the invention, the wind energy device is composed of at least 3 blades arranged vertically about an axis of rotation. These blades, thanks to their very specific aerodynamic shape, are able to capture weak winds. These blades 25 are mounted on an axis of rotation of their own, allowing their retraction in case of strong winds through the set of pressure-depression exerted on the intradosuperados sides of the blades. The wind turbine device comprises a low casing and a high casing, both rotating or provided with preferably circular rotating rings, supporting all the blades.

In a variant of installation mode, the wind turbine device is adapted to the street lamp, lamppost or candelabrum existing in the upper part of the latter in the extension of the mat. This adaptation requires the disassembly of the upper part of the mast to house in the manner of a spacer, the wind device, thus ensuring a certain aestheticism. In a completely different installation mode, the wind turbine will be grafted onto the mat. This much less aesthetic version offers the advantage of not disassembling the top of the street light. In these embodiments, the wind system is provided with the electric generator system thus providing a compact assembly. The invention itself will now be described in detail with reference to the figures for which: 1. FIG. 1 represents a view from above of the wind turbine in different situations of operation in position with adaptive retracting geometry, 2. FIG. represents a sectional view of the composition of the wind turbine with its electric power generator (8), 3. FIG. 3 represents the wind turbine device mounted in the axis of the street light ensuring a certain aesthetic appearance, 4. FIG. represents the wind-powered device mounted parallel to the street lamp mat, 5. FIG. 5 represents FIG. 3 on which the pedestrian light source 6 has been added. FIG. 6 represents FIG. 4 on which the pedestrian light source has been added. , 7. Figure 7 shows the color signage during operation of the wind turbine in extreme positions. Figure 1 illustrates the different positions adopted by the self-adaptive wind turbine mounted between the upper part (2) and the lower part (6) of the reverberatory mat according to the wind. The energy produced by the wind coming into the vanes or blades (3) of said wind turbine will be transformed by a transformer (8) shown in Figure 2 of the genus dynamo or alternator, into electrical energy. This energy will or will not be consumed according to the natural brightness. The blades or blades (3) are spaced equidistant from the center. They have the same shape, the same dimensions so as to form once mounted on the device, a coherent and perfectly balanced to generate no unbalance and generate the least friction. Said wind turbine 2 is provided with an axis (1) with which turn two circular plates (7) (an upper and a lower) on which in turn are mounted free in rotation at least 3 vanes or blades (3). The rotation of the blades or blades (3) on themselves is limited by a connection made between the return system (4) and the two thrust bearings (5) (one upper and one lower) At least 3 curved airfoil blades and / or 3D scalable surface rotating on their axis provide the best performance under the action of the wind. They are automatically placed in the best angular position according to the wind force and thus transmit a constant speed to the vertical axis (1). By light breeze, the blades open to the maximum. When the wind is strong, they tend to close. Note that the maximum torque applied on the axis occurs when they are three-quarters closed. If the wind becomes even more violent, the blades or blades close completely and reopen under the effect of the return system (4) as soon as it weakens (Figure 1). Said axis (1) shown in Figure 2 and rotating on itself has at both ends a shouldered portion on which are mounted a first bearing (0) favorably sized to receive at its upper end the top (2) of the mat of the reverberation and a second bearing (0 ') favorably sized to receive at its lower end the bottom (6) of the street light.

It should be noted that the principle of the wind turbine presented is known and that the one which interests us differs from the common one by the aerodynamic form specifically developed of the blades for this application as well as by the shape of the axis (1) which, equipped of its bearings (0) and (0 '), fulfills the positioner locator function for the mast and which, by being rotated under the effect of the wind blowing into the vanes or blades (3), rotates the rotor electric energy generator (8) itself connected by a mechanical connection (9). Said electric power generator (8) is well protected from bad weather since it is incorporated in the lamplight of the street light.

Said autonomous renewable energy device consisting of the wind turbine and its electric energy generator shown in FIG. 2 is now identified as a reference mark (10) in FIG. 3 shown assembled on an existing street light. It is connected in turn to the existing lighting system on the existing street light. Said device is put into electric power distribution situation by electrical switching connected to a not shown light intensity sensor. In another version, the autonomous renewable energy device (10) can be mounted as shown on the 4 by adding a mechanical connection marker (11) to the street light. The energy coupling principle remains the same as before. This type of mounting on the existing street light has the advantage of not disassembling the upper part of the existing street light. On the other hand, the disadvantage essentially lies in the fact that a hull (13) must be added to the electrical energy generator (8) mounted in alignment with the axis (1) of the wind turbine in order to protect against the weather. In addition, the addition of the mechanical link mark (11) degrades a little bit the aesthetics of the whole. In the version shown in FIG. 5, the configuration of the wind turbine device is the same as that represented in FIG. 3, except for the fact of adding the additional marker lighting (12) for pedestrians. As previously explained, said autonomous renewable energy device 10 (10) is operated by electrical switching connected to a light intensity sensor and / or presence detection not shown. This time, it comes to feed the marker pedestrian lighting (12) in place of the one installed in the upper part of the lamppost. The lighting relay is therefore provided by the mark (12).

FIG. 6 shows the assembly joint between the version 4 and 5. It is by far the least aesthetic. The last figure 7 shows the signage for example by the sea along the beaches, it is possible to set up on the upper and lower surfaces of the blades which are rotated under the effect of wind.

When the wind remains weak or non-existent, that is to say for example less than 2 m / sec and / or at a low rotational speed, the vanes are in the "open" position. They show the intrados of the dawn wearing a "GREEN" color. The indication remains interesting for anyone who wants to see it, because it allows to decide on the choice of an activity for example 25 summer for a person. (Bathing, etc.) In the opposite case, that is to say, in medium wind see very strong, the blades close again and show progressively their side extrados color "RED". The indication as interesting as before will allow anyone who wants to see it, to rule on an activity. (Swimming prohibited, use of windsurfing board, etc.)

Claims (8)

REVENDICATIONS1. Stand-alone device with renewable energy that is weather-resistant and adaptable to lighting means such as a street lamp, street lamp, existing, new or new design candelabra used on tracks, in parks or for monuments with public or private use, including a wind turbine -adaptative (10) vertical axis, an electrical energy generator (8) producing electrical energy not stored on battery, from said wind turbine set in motion by wind, a means of additional lighting (12). characterized in that said wind turbine is assembled on the mat (2) of said existing lighting means, 2. Stand-alone renewable energy device adaptable to lighting means according to claim 1 characterized in that said wind turbine (10) consisting of at least 3 blades (3) movable aerodynamic curved profile and 3d scalable surface, generates in operation a noise level of no more than 15 decibels, 3. Autonomous renewable energy device adaptable on lighting means according to any one of the preceding claims characterized in that said wind turbine (10) equipped with its generator of electrical energy (8) of the dynamo or alternator type has centering (0) and (0 ') at its ends to be mounted in / or on the mat (2) of said lighting means, 4. Stand-alone renewable energy device adaptable to lighting means according to claim 2 characterized in that said wind turbine (10) is variable self-adaptive geometry as a function of wind force which equates to gusts goes out of service in position Folded "security" (Figure 7), 5. Stand-alone renewable energy device adaptable on lighting means according to claims 1 and 2 characterized in that said wind turbine (10) is variable in geometry according to the force of the wind, and sufficiently sensitive to low winds of the order of 2 m / sec to operate autonomously continuously, thus having no use of storing electrical energy on capacitor and / or battery, or to be relayed by any input of electrical energy type electric energy solar thus eliminating the "liane" overhead electrical connections for operating said lighting means, 6. Stand-alone renewable energy device adaptable to lighting means according to any one of the preceding claims characterized in that said wind turbine (10) provided with optimized aerodynamic blades and equipped with its electric power generator (8) having very low resistance to friction, starts alone without any help as soon as the wind blows to the required force of at most 2 m / Sec, 7. Stand-alone renewable energy device adaptable to lighting means according to any one of the preceding claims characterized in that the electrical energy generator (8) is protected from the weather and easily electrically connectable to the light sources (14). ) and (12) Since it is embedded in the mat30 8. Stand-alone renewable energy device adaptable to lighting means according to any one of the preceding claims characterized in that the autonomous renewable energy device has an electrical switch operating with the brightness and / or a presence detector, Stand-alone renewable energy device adaptable to lighting means according to claims 1, 2 and 5 characterized in that the blades (3) of said wind turbine (10) opening or closing according to the wind force are used in full day of advertising and / or informal communication such as signage affixed to the intrados and extrados of the blades (Figure 7) making it possible to decide on a possible or dangerous activity by the sea. 10. Lighting means comprising an autonomous device with renewable energy according to any one of the preceding claims characterized in that a pedestrian lighting (12) of light source e composed of LEDs (LED) is adaptable on / or in the mat of said existing lighting means,