Wall element

Abstract

A wall element is provided for a noise protection wall. The wall element has a body and at least one outer face. The body has a support towards the at least one outer face, and at least one solar panel is arranged on the support and is connected to the body. The solar panel is inclined relative to a vertical in the direction of an upper face of the wall element. The body has on the at least one outer face at least one sound absorption surface which can be directly reached by incoming sound. The sound absorption surface is inclined at least in some sections relative to the vertical and/or relative to a longitudinal direction of the wall element, and the area of the sound absorption surface is at least equal to the area of a visible face of the wall element.

Claims

1. Wall element for a noise protection wall, wherein the wall element has a body and at least one outer side, wherein the body has a support towards the at least one outer side, wherein at least one solar panel is arranged on the support and is connected to the body, wherein the solar panel is inclined relative to a vertical in the direction of an upper side of the wall element, wherein the body on the at least one outer side has at least one sound absorption surface, wherein the at least one sound absorption surface is directly accessible to incoming sound, wherein the at least one sound absorption surface is inclined at least in some sections relative to at least one of the vertical and a longitudinal direction of the wall element, wherein an area of the sound absorption surface is at least equal to an area of an elevation view of the wall element.

2. The wall element according to claim 1, wherein an area of sections of the sound absorption surface which are directly accessible to sound coming from a noise immission area is at least equal to the area of the elevation view of the wall element, wherein the noise immission area comprises an angular range between a normal to the vertical and an inclination set at 70? from this normal in the direction of an underside of the wall element.

3. The wall element according to claim 1, wherein the area of the sound absorption surface corresponds to about 1.2 times or multiple times the area of the elevation view of the wall element.

4. The wall element according to claim 1, wherein the body has an upper bearing face and a lower bearing face for stacking a plurality of wall elements in a stacking direction, wherein the bearing surfaces are arranged normal on the vertical.

5. The wall element according to claim 1, wherein in a viewing direction normal to the solar panel the sound absorption surface is at least predominantly covered by the solar panel.

6. The wall element according to claim 1, wherein the at least one sound absorption surface is arranged in a noise protection wall comprising the wall element completely within a shadow line between an upper edge of a lower solar panel and a lower edge of an upper solar panel.

7. The wall element according to claim 6, wherein on the at least one outer side outside the solar panel the body has at least one elevation for enlarging the at least one sound absorption surface, wherein an outer edge of the elevation contacts the shadow line or lies inside the shadow line.

8. The wall element according to claim 6, wherein a distance between adjacent solar panels in a direction of the vertical of a noise protection wall comprising the wall element is selected so that the shadow line between the adjacent solar panels is arranged normal on the front side of at least one solar panel.

9. The wall element according to claim 1, wherein in an elevation view of the outer side a distance between adjacent solar panels in a direction of the vertical is greater than or equal to a distance between an upper edge and a lower edge of a solar panel.

10. The wall element according to claim 1, wherein the body consists predominantly of a sound-absorbing material.

11. The wall element according to claim 10, wherein the body consists predominantly of wood concrete.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be explained in further detail hereinafter with reference to particularly preferred exemplary embodiments to which, however, it should not be restricted and with reference to the drawings. The drawings show in detail:

(2) FIG. 1 shows a diagrammatic view of a first embodiment of the disclosed wall element;

(3) FIG. 2 shows schematically a vertical section of the first embodiment of the disclosed wall element;

(4) FIG. 3 shows schematically a vertical section of a noise protection wall with wall elements arranged on both sides;

(5) FIG. 4 shows a diagrammatic view of a wall module with wall elements arranged on both sides; and

(6) FIG. 5 shows a diagrammatic view of a noise protection wall with wall elements arranged on both sides.

DESCRIPTION OF EXAMPLE EMBODIMENTS

(7) FIG. 1 and FIG. 2 show a wall element 1 for a noise protection wall. The wall element 1 comprises a body 2 made of wood concrete and a solar panel 3. The wall element 1 has an outer side 4 (also front side). The body 2 has two elevations 5, 6 or projections on the outer side 4. The first elevation 5 forms a support 7 towards the outer side 4 on which the solar panel 3 is arranged and connected to the body 2. The solar panel 3 is inclined in relation to a vertical 8 in the direction of an upper side 9 of the wall element 1.

(8) In addition, on the outer side 4 the body 2 has a sound absorption surface 10 which can be reached directly by incoming sound from a noise immission area corresponding to an angular range 34 from normal (i.e. parallel to the normal 32) or as far as an inclination 33 of 45? below the normal 32 to the vertical 8. The second elevation 6 is arranged outside the solar panel 3, more precisely aside or adjacent to the solar panel 3 and is used to enlarge the sound absorption surface 10 wherein an outer edge 11 of the elevation 6 contacts a shadow line 12 underneath the solar panel 3 so that the elevation 6 comes to lie inside the shadow line. The sound absorption surface 10 is completely covered by the solar panel 3 in a viewing direction normal to the solar panel 3.

(9) As a result of the geometry of the second elevation 6 (having a triangular profile), the sound absorption surface 10 is substantially divided into three sections 13, 14 and 15 which are inclined or normal in relation to the vertical 8 of the wall element 1. The area of the sound absorption surface 10 is greater than the area of an elevation view of the wall element 1, e.g. by about 1.2 times.

(10) The body 2 comprises an upper bearing surface 16 and a lower bearing surface 17 for stacking a plurality of wall elements 1 in a stacking direction (compare FIG. 3). The bearing surfaces 16, 17 are for the most part arranged substantially normal to the vertical 8.

(11) In the possible embodiment described, in addition to the three inclined or horizontal sections 13, 14 and 15, the sound absorption surface 10 has a fourth section 18 arranged parallel to the vertical between the two elevations 5, 6 which should avoid possibly problematic acute angles between the two elevations 5, 6 in manufacture. For the same reason the tip (outer edge) of the first elevation 5 is bevelled.

(12) FIG. 3 shows a noise protection wall 19 in which a plurality of wall elements 22 are arranged above one another on both sides 20, 21. The individual wall elements 22 are constructed of two modules 23, 24 wherein the individual modules 23, 24 each correspond to a wall element 1 according to the embodiment according to FIG. 1 and FIG. 2 and the two modules 23, 24 comprise a common continuous body 25 so that two modules 23, 24 together form a wall element 22 (with accordingly two solar panels). The noise protection wall 19 comprises a supporting core 26, e.g. made of reinforced concrete or a framework lightweight construction between steel uprights (upright spacing, e.g. 165, 200 or 500 cm) as well as a base region 27 made of concrete.

(13) The distance between adjacent solar panels 3 of the noise protection wall 19 in the direction of the vertical is selected so that the shadow line 12 between these solar panels 3 is substantially normal to the outer side of the solar panel 3 arranged parallel in this example. In a side view of the outer side 4 (not shown but identifiable from the depicted profile), the distance between neighbouring solar panels 3 in the direction of the vertical (for example, 14 cm) is greater than or equal to the distance between an upper edge 28 and a lower edge 29 of a solar panel 3 (for example, 11 cm). The sound absorption surfaces 10 of the wall elements 22 are in each case arranged completely inside a shadow line 12 between an upper edge 28 of a lower solar panel 3 and a lower edge 29 of an upper solar panel 3.

(14) The wall elements 22 (with a module height of, for example, 25 cm and a corresponding element height of, for example, 50 cm) are stacked so that the bearing surfaces 16, 17 of neighbouring wall elements 22 contact each other. The width of the solar panels 3 is, for example, 16.5 cm. The individual wall elements 22 are connected to the supporting core 26, for example, glued on or screwed on.

(15) FIG. 4 shows schematically a section of the noise protection wall 19 corresponding to a wall module. The wall module comprises a section of the core 26. Respectively one wall element 22 with a continuous body 25 is arranged on both sides 20, 21 of the core section. Each band element in this case comprises two modules 23, 24 which are each fitted with a solar panel 3. The wall module depicted here for example has a dimension along the vertical 8 (height) of about 50 cm. Each module 23, 24 or each row of modules is therefore about 25 cm high. The solar panels 3 are in this case about 16.5 cm wide. Alternatively it can be provided that a wall module of this height has three rows of modules wherein the solar panels have a width of about 12.5 cm. However it is also feasible to provide a wall module with only one row of modules, e.g. having a height of 25 cm.

(16) FIG. 5 shows a diagrammatic view of a noise protection wall 19 with wall elements arranged on both sides comparable to FIG. 3. The noise protection wall 19 is divided in the longitudinal direction into sections which are each delimited by steel uprights 30, supported and anchored in the ground. The neighbouring noise protection wall sections 31 in the longitudinal direction are shown by dashed lines in FIG. 5 in order to illustrate the continuation of the noise protection wall by repetition in rows or juxtaposition of a plurality of noise protection wall sections.