Abstract
An insert for fireproofing at least one electric mounting box contains a substrate material and an intumescent layer, both the substrate material and the intumescent layer being able to undergo plastic deformation.
Claims
1: An insert as fire protection of at least one electric mounting box, said insert comprising: a carrier material, and at least one intumescent layer, wherein the carrier material and the intumescent layer are plastically deformable.
2: The insert according to claim 1, wherein the carrier material comprises a metal.
3: The insert according to claim 2, wherein the carrier material is a metal foil or a metal sheet.
4: The insert according to claim 2, wherein the carrier material is a metal mesh or a metal fabric.
5: The insert according to claim 1, wherein the intumescent layer is applied on one side of the carrier material.
6: The insert according to claim 1, wherein the intumescent layer is situated on both sides of the carrier material.
7: The insert according to claim 1, having a thickness of less than 4 mm.
8: The insert according to claim 1, having two arms situated opposite one another, so that they can be introduced interlockingly into a rectangularly shaped or round electric mounting box.
9: The insert according to claim 8, wherein the length of the arms is greater than the depth of the electric mounting box.
10: A method for manufacturing an insert according to claim 1, said method comprising: supplying a plastically deformable carrier material, applying at least one intumescent layer at least in a region on the supplied carrier material, solidifying the applied intumescent layer.
11: The method according to claim 10, wherein the carrier material is supplied in pre-customized form.
12: The method according to claim 10, wherein the insert is subsequently customized.
13: An electric mounting box having a plastically deformable insert according to claim 1, manufactured by a method comprising: supplying a plastically deformable carrier material, applying at least one intumescent layer at least in a region on the supplied carrier material, solidifying the applied intumescent layer, wherein the insert extends along the walls of the electric mounting box to its inside.
Description
[0020] Preferred exemplary embodiments of the invention will be explained in more detail hereinafter on the basis of greatly simplified schematic diagrams. Herein,
[0021] FIG. 1a shows a schematic cross section of an insert according to a first exemplary embodiment,
[0022] FIG. 1b shows a schematic cross section of an insert according to a second exemplary embodiment;
[0023] FIG. 2a shows a schematic overhead view of a mat for cutting out at least one insert according to a first embodiment,
[0024] FIG. 2b shows a schematic overhead view of a mat having a multiplicity of inserts according to a second embodiment,
[0025] FIG. 3 shows a schematic overhead view of an insert according to the second embodiment,
[0026] FIG. 4a shows a schematic overhead view of an electric mounting box having an insert according to the second embodiment, and
[0027] FIG. 4b shows a schematic cross section of the electric mounting box having an insert according to the second embodiment
[0028] In the figures, like constructive elements are denoted respectively by like reference numerals.
[0029] FIG. 1a shows a cross section of an insert 1 according to the first exemplary embodiment. Insert 1 is provided with a carrier material 2 disposed in the middle. Here, carrier material 2 is a metal mesh. An intumescent layer 4 is respectively disposed on both sides of carrier layer 2. These intumescent layers 4 form an upper side and an underside of insert 1. Since carrier material 2 is a metal mesh, a large number of bonds through mesh openings, not shown, of metal mesh 2 exists between the upper side and the underside. Here, insert 1 is formed as a flat mat 6, which may be individually cut to size or customized by a user.
[0030] In FIG. 1b, a cross section is shown of insert 1 according to a second exemplary embodiment. In this case, carrier material 2 of insert 1 is equipped with an intumescent layer 4 only on one side. According to the exemplary embodiment, carrier material 2 is a metal sheet. As an example, intumescent layer 4 was applied on carrier material 2 and cured by an injection-molding process.
[0031] FIG. 2a shows a schematic overhead view of a mat 6 for cutting out at least one insert 1 according to a first embodiment. Mat 6 has a square base area and has been prepared for individual cutting to size. For example, mat 6 may be customized with scissors in such a way that several inserts 1 can be cut out of mat 6. Due to this type of configuration of the insert, no special shape is predetermined for the final insert 1. In this case, insert 1 may be individually configured and cut to size by a user.
[0032] In FIG. 2b, a schematic overhead view is illustrated of a mat 6 having a multiplicity of inserts 1 according to a second embodiment. In this case, mat 6 has a rectangular base area and has been perforated during manufacture. Here, six identically shaped inserts 1 can be cut out of mat 6 by virtue of several perforations 8. According to the exemplary embodiment, inserts 1 have the shape of a cross. After inserts 1 have been cut out, a residue 10 of mat 6 is left. An insert 1 may consist of several smaller individual parts, which may be formed, for example, from residue 10 of mat 6.
[0033] FIG. 3 shows a schematic overhead view of an insert 1 according to the second embodiment, wherein the insert has been separated from the other inserts of mat 6.
[0034] In the overhead view, insert 1 has the shape of a cross and has been removed from mat 6 of FIG. 2b. Insert 1 has a central region 12, from which four arms 14 extend. At their ends, arms 14 respectively have a side rim 16, which is constructed as an overlap region 16, which is able to compensate for fabrication tolerances and serves as an additional seal.
[0035] In FIG. 4a, a schematic overhead view is shown of an electric mounting box 20 having an insert 1 according to the second embodiment. Electric mounting box 20 is constructed cylindrically and has four threaded regions 21 for receiving screws. Electric mounting box 20 has an inner region 22, bounded by a rim 24 of the electric mounting box 20, for receiving components and cables, not shown.
[0036] An insert 1 according to the second embodiment shown in FIG. 3 is inserted into electric mounting box 20. For this purpose, arms 14 of insert 1 are bent over by 90. Insert 1 is positioned in electric mounting box 20 in such a way that central region 12 of insert 1 rests on a bottom 26 of electric mounting box 20. Because they are bent over, arms 14 preferably run parallel to wall 24 of electric mounting box 20.
[0037] The respective overlap regions 16 of arms 14 project out of electric mounting box 20 and are likewise bent at a 90 angle in such a way that rim 24 of electric mounting box 20 is concealed by overlap regions 16, at least in regions.
[0038] Into the inner region 22, protected from fire by insert 1, of electric mounting box 20, it is possible to lead cables between arms 14 of insert 1. This is additionally indicated by the arrows. Alternatively or additionally, slits or openings for routing cables may be made in insert 1.
[0039] FIG. 4b shows a schematic cross section of electric mounting box 20 from FIG. 4a along line A-A. The figure illustrates in particular insert 1 in the condition inserted in the inner region 22 of electric mounting box 20. Arms 14 run parallel to wall 24 of electric mounting box 20 and, in overlap region 16, project out of electric mounting box 20. Overlap regions 16 are respectively bent at a 90 angle relative to wall 24 of electric mounting box 20 and thus run parallel to a wall 32, which according to the exemplary embodiment is a cavity wall 32.
[0040] A cover 28 is able to seal electric mounting box 20 and clamp the protruding overlap regions 16 of insert 1 between cover 28 and wall 24 of electric mounting box 20. As an example, cover 28 may form an interlocking joint with wall 24 of electric mounting box 20 via snap-in noses 30. Hereby not only electric mounting box 20 but also possible gaps between electric mounting box 20 and wall 32 are sealed at least in regions. By analogy with the preceding figure, the arrows show options for routing cables into electric mounting box 20.
