ES1064162U - Modular ventilation grid (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Modular ventilation grille characterized by a perforated plate, with a series of holes that prevent the access of foreign solid bodies. (Machine-translation by Google Translate, not legally binding)

Description

Modular ventilation grill.

Object of the invention

The present innovation refers to a new modular device with the aim of improving the ventilation of a monoblock building and that is integrated into it during the process of manufacturing.

Background of the invention

The existing grids currently comply with the EN 60529 / UNE 20-324-93 concerning degrees of protection provided by the envelopes (IP code 23D) against penetration of solid bodies, water and access to dangerous parts, and also for centers of surface transformation UNESA recommendations are followed 1303A (IP code 339) which, in the case of metal grilles, is more demanding.

The ventilation system for which they are intended these grids is natural type, favoring in its case the best possible circulation.

Protection against body penetration solid and access to dangerous parts, is achieved through the geometry of the sheets, wedge type, which prevent the passage of a straight wire between them. The dimensions of the object to block they are defined by a 2.5 mm diameter steel rod and end without burrs.

The second type of protection, against water penetration is guaranteed by the provision of plates, which in turn, thanks to its labyrinthine geometry, the they expel outwards.

The assembly of the traditional grilles in the Monobloc building is after its manufacture, which implies higher cost and runtime, contrary to what it means prefabricate.

The new design has several advantages over to the current state of the art, on the one hand the process of prefabrication, the grid design is simplified and profitable and ensures better protection of the interior of the building.

Description of the invention

The design of the ventilation grill that the invention proposes, is constituted of several modules. Each one of These modules (figure 3) consist of a metal sheet in the form of "U" inclined, where the ventilation of the building is carried out thanks to the perforations that this module has in its bottom. This modular assembly will overlap inside the prefabricated building as many times as necessary, to ensure correct ventilation inside it (figure 2). This solution constructive can also be done by inserting slanted slats of a single wing on the wall of the monobloc building, located in front of a perforated sheet that is located on the inside of the building (figure 4).

The perforations of the sheet metal prevent the introduction of a 1 mm diameter steel rod, thus guaranteeing protection against foreign agents as required by existing regulations in this regard, as well as in the most demanding practice of the sector. The light that the perforated sheet will be less than that measure in one of the dimensions of the holes of it.

In conventional grid designs the protection against external agents is guaranteed thanks to the labyrinth shaped geometry of the slats, rather than at hole dimensions of the perforated sheet, which means an innovation in the way of ensuring protection against penetration of solid bodies and access to dangerous parts.

Maintaining the classic layout of the grilles inside the monobloc building, the invention proposes a improvement in air circulation, thus achieving a balance more favorable thermal. This is achieved by reducing losses of load that are produced by the passage of air through the vents.

On the other hand, the new grid design produces two consequences sought, the first is its easy insertion during the prefabrication of the monobloc building, since it benefits from its modular feature, that is, it behaves as a single piece that is added to the mold, so once made the concreting of the prefabricated part the grid is embedded in construction. The second is the elimination of the Traditional screen mosquito net, as specified in the UNESA recommendations, since this function is performed by perforated sheet metal. Both advantages are valid when grilles consisting of metal sheets in the form of "U" inclined with perforations in its bottom (figure 3), or when the bottom of them are replaced by a metal sheet perforated to which slanted slats of a single wing are added on its side (figure 4).

Brief description of the drawings

To complete the description of this grid of modular ventilation and in order to help a better understanding of the invention, an illustrative drawing is attached and not limitative.

Figure 1.- Shows an elevation view of a prefabricated wall (1) in which several modular vents have been inserted
(2).

Figure 2.- Shows a representation in perspective of a prefabricated wall (1) in which they have inserted several modular vents (2).

Figure 3.- Shows a 3D representation of a module of a modular ventilation grill (2). Each one of These modules consist of a "U" shaped metal sheet inclined, where the ventilation of the building is done thanks perforations that each of these modules has in the area building interior.

Figure 4.- Shows a 3D representation of a prefabricated wall (1) in which ventilation has been resolved with the help of a perforated sheet metal (3) and slats inclined of a single wing.

Description of a preferred embodiment

One of the possible uses of this modular ventilation grill for monobloc buildings would be in electrical surface transformation centers, where established as one of its constructive elements, and complying All specifications mentioned above: protection against penetration and access to dangerous parts of bodies foreign solids, with a diameter greater than 1 mm, and against the rainwater penetration

The number and arrangement of these grids will be such that it guarantees a sufficient air flow for a correct thermal equilibrium inside the transformation center, with special attention to the temperature reached in the surroundings of the transformers.

Similarly, as the grid will be in contact with the air, and being this one of a metallic material, it will perform an appropriate protective treatment.

In addition, during its insertion in the process of prefabrication of the monobloc building, attention will be paid special to no electrical contact with the equipotential system of the transformation center, as well as that support the temperatures that are reached during the process of manufacturing.

Claims (2)

1. Modular ventilation grill, characterized by a perforated sheet, with a series of holes that prevent the access of foreign solid bodies. 2. Modular ventilation grill according to the preceding claim characterized in that the final assembly is formed as a single modular piece.