FR2795569A1 - Monobloc solar generator for portable applications, comprises polyhedral case closed by sealed photovoltaic panel whose attitude depends on which of 3 variously inclined faces act as base - Google Patents

Abstract

The solar panel (1), on an aluminum frame, is fixed with a watertight seal to the open top of the polythene case (3) by 4-6 captive screws. To deter thieves these are removable only by special tool. 3 fixings on each face permit mounting on horizontal or vertical surfaces. A sheet steel corrosion-proofed chassis (4) fixed inside the case supports a battery (2) and regulator (5). For AC outputs, an inverter (6) is also fitted. Carrying handles are provided, and DC and/or AC weatherproof socket outlets, on/off switch, and, opt., photo-electric controller. Components are so positioned as to maintain gravitational stability in any of the 3 optional attitudes available. Ventilation is arranged in each attitude to prevent rain entering. Maximum weight is about 20 kg. Free-standing on either inclined end-face or on the case bottom, the case is stable, has the plane of the panel is inclined at 4, 36 or 54 degrees., respectively, to the horizontal supporting surface. A similar choice of inclination is available if the case is fixed, as provided for, to a wall, post or other vertical surface. The attitude selected will be that best suited to the latitude and time of year.

Description

 The present invention relates to an autonomous electric generator with energy storage and built-in regulation. The principle is a photovoltaic module (1) intended, in known manner, to transform the solar energy into a continuous electric current. This current is stored in a storage battery (2) whose charging and discharging are regulated by an electronic device (5). A 12 or 24V DC socket is connected to the battery, via the regulator and cables of a minimum length; it allows the use of devices or light point with low consumption.

The present invention also relates to an electrical installation employing several independent generators connected in series, in parallel or in series-parallel to form a global generator of increased power.

According to the prior art, the generators currently on the market are # sized according to a given consumption requirement and the amount of sunshine available on the implantation site # is proposed in kits (of different size corresponding to different needs) These so-called "conventional" generators consist of a field of one or more solar photovoltaic modules, a storage battery for energy storage, a control and regulation system and possibly a voltage converter for supplying an alternating current at a voltage of 230V and a frequency of 50Hz. The implementation of such generators. requires a lot of floor space # is expensive because it requires a skilled labor for the installation # is subject to theft because the generator elements are expensive (solar panel, storage battery) and can be easily reused or resold. often requires protection against animals or even humans in the form of roasting or other because deadly currents and voltages for them can be put in issue # induced power losses in the cables # is often made definitively and the installation can not be disassembled and reassembled easily to meet, for example, energy needs located in different places at different times (farms and summer huts shepherds) We also proposed two innovative solar generators.

 The first, object of the international patent filed on 29/05/97 under the international publication number: WO 98/54589, consists of a battery, connectable to a load, on which is fixed a solar panel. This system does not include the possibility of tilting the solar panel, which affects its production and makes it very unproductive in some parts of the world or involves the use of an additional tilting and fixing system. The second, subject of the French patent filed 16 / 10I98 under the national publication number 2,746,557, consists of solar panel located on the cover of a suitcase in which is fixed a battery. This system, bulky and difficult to transport, provides a system for adjusting the tilt of the fragile solar panel. In addition, the inclination of the panel implies the opening of the bag and therefore does not ensure a satisfactory seal. The object of the invention is therefore to provide a solar generator capable of supplying electricity anywhere in the world having the following characteristics. monobloc and compact to occupy the smallest possible space, to have a minimum weight and minimal voltage drops in cables # cheap and not requiring installation cost # suitable for flight problems. Light and small, it can be transported and stored easily when not in use # not requiring any special protection against humans and animals since no cables are visible. Free of electrical danger. . easily transportable to be used in different places "ready to connect" that is to say requiring no technical knowledge or manipulation to be installed and used To meet these needs, we have been led to the development of this monobloc generator, transportable, "ready to plug", usable anywhere in the world and modular design. The main features of this generator reside in that. the block is portable in that it has a maximum weight of 20 kg and a handle adapted to its transport # the block can be placed on the ground (figure <I> 6I6) </ I> it fixed on a fixed post # on a wall (figure <I> 5I6) </ I> 0 or more generally placed or fixed on any flat surface (figure 6I6). the block is stable on 3 sides, each of which gives a different inclination to the solar panel and thus makes it possible to optimize the generation of the generator according to the latitude of the site and the season (at each latitude and at each season corresponds an inclination optimizing the production of the generator ). the block is equipped with a 12V or 24V plug with optional waterproof cap #, a DC / AC converter, also called inverter (6) is integrated in the block and the box is equipped with a waterproof plug to allow the use of AC equipment # the unit is equipped with an on / off switch and a twilight sensor for easy and automatic use for lighting applications. the block is provided with a ventilation system necessary for the proper functioning of the storage battery and the current regulation and conversion devices. From a technical point of view, the box is in two main parts (see figures): # a transparent rotomolded polyethylene outer casing (3) with 3 M8 inserts on each side for external and / or internal fixation. The cowling has on its entire periphery a rim which ensures an external flow of any water infiltration. This cover allows the attachment of the photovoltaic module (1), equipped with 4 to 6 M6 cage nuts (8). This module needs to be disassembled with a special tool to prevent theft. The aluminum frame of the module provides additional rigidity to the assembly and optionally a peripheral seal (9) is provided depending on the degree of tightness required. This chest has vents such as not receiving rain in any of the 3 positions. It comprises molded transport cuffs It has 3 faces <B>; </ B> the first inclined of 40, and preferably 36, relative to the plane of the solar module, the second inclined of 0 10, and preferably 4 and the third inclined 50 60, and preferably 54 relative to the plane of the solar module. The box will be placed or fixed on one of these 3 faces depending on the desired inclination for the module, the latter being chosen according to the latitude of the place, the season and the time of day.

 # an internal plinth made of sheet steel (4) with cataphoresis treatment for placing the battery and electrical accessories on the sides. This metal part is limited to the bottom (E) and to the two faces with angles of 40, and preferably 36 (B) and 50, and preferably 54 (D). This base is such that the center of gravity of the block allows stability of the block on these 3 faces (E), (B) and (D). The internal partitioning of the trunk is carried out so as to delimit the locations of each respective component. Figure <B> 1/6 </ B> shows the generator in section view from side (face (A)).

Figure 2/6 shows the generator in section view from the side (face (B)) with its fixing bar (7).

Figure 3/6 shows the generator in section view from the side (face (A)) and more particularly the fixing of the photovoltaic module (1) on the polyethylene box (3) using M6 cage nuts (8) . In this figure is also shown the additional seal (9) increasing the degree of sealing of the assembly at the junction (10) between the aluminum frame of the photovoltaic module (1) and the part of the polyethylene cabinet (3). ).

 Figure 4/6 shows the generator seen from below with the 5 faces of the polyethylene cabinet (3).

Figure 5I6 details the attachment of the generator on a wall on each of the respective faces (B), (E) and (D).

 Figure 6/6 details the attachment of the generator to the ground on each of the respective faces (D), (E) and (B).

Industrial applications arising from this source of mobile energy are numerous # mobile and transportable mobile construction site generator (civil engineering, bridges and highways, highways, etc.) # standalone power supply equipment located in nature far from any electrical source (monitoring of water levels and floods of streams, flow meters, measuring station, etc ...) Leisure applications may lead to the marketing of this generator for the general public # energy source for picnic and wake in the nature # electrical supply of recreational homes. supply of garden lighting street lamps

Claims (1)

 CLAIMS 11 Photovoltaic solar generator for, in known manner, transforming light energy into electricity characterized in that the generator is composed of a single box incorporating all the elements of the generator (photovoltaic module (1), battery (2), regulator (5), inverter (6) and cables) and having a plug 2 / Photovoltaic solar generator according to claim 1, characterized in that it comprises 3 positioning faces (B), (D) and (E) , on which the cabinet is stable. The 3 faces (B), (D) and (E) have different angles with respect to the ground, which makes it possible to give to the photovoltaic module (1) 3 different inclinations (from 0 to 10, from 30 to 40 and from 50 to 60) to optimize its production according to the latitude, the season and the time of the day. 3 / solar photovoltaic generator according to claim 2, characterized in that the angles of the 3 positioning faces (B), (D) and (E) relative to the ground are 40, 36 <B> 0 </ B> and 540. 4 / Photovoltaic solar generator according to claim 1, characterized in that it consists of 2 main parts: an outer cowling (3) and an inner base (4) whose interior matches the shape of the battery (2). ) thus allowing its fixing as well as that of regulating devices (5) and conversion (6) of the current. 51 photovoltaic solar generator according to claim 1, characterized in that it is provided with handles which gives it the possibility of being easily transported from one place to another 61 Photovoltaic solar generator according to claim 1, characterized in that it is equipped with a 12V waterproof plug and an optional waterproof 230V socket 7 / Photovoltaic solar generator according to claim 1, characterized in that it is provided with an on / off switch and a optional twilight switch all 2 waterproof.