SE2150953A1

SE2150953A1 - A wall module

Info

Publication number: SE2150953A1
Application number: SE2150953A
Authority: SE
Inventors: Anton Kolbe; Benny Andersson; Per Nadén; Pontus Håkansson
Original assignee: Inter Ikea Sys Bv
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2023-01-17

Abstract

A wall module (100) is provided. The wall module (100) comprises interior first wall panel (110), an opposing second wall panel (120), and a sound absorbing material (140) arranged between the first wall panel (110) and the second wall panel (120). The first wall panel (110) comprises a pegboard portion (130).

Description

A WALL MODULE Technical Field The present invention relates to wall modules, and in particular to wall modules being used for forming compartments.

Background Wall modules are currently used for creating confined spaces like compartments, especially indoors, and the need for easy-to-use and ready-to- assemble wall modules is rapidly increasing. In various situations it is desirable to transform the interior layout of a building; may it be to provide separate booths in an exhibition hall, or to create individual offices in a workspace. Currently, wall modules are used for both permanent and temporary installations.

A wall module should be constructed in order to facilitate assembly at the desired location, i.e. it should allow for easy connection with adjacent wall modules as well as with associated ceiling modules. Further, the wall module should preferably be allowed to be manufactured using low complexity and cost effective production processes.

In addition the wall module should be lightweight to improve logistics and handling, which provides some limitations of thickness and materials used. Yet further, it has been desired to design the wall modules in terms of their acoustic properties such that the interior space, delimited by the wall modules, provides a pleasant acoustic environment while at the same time, for privacy purposes, reduces the sound escaping through the wall module to the exterior.

All these requirements put great demands on wall module producers, as many of the requirements are in contradiction to each other; for example, improved acoustics normally require more expensive material being used thus reducing cost effectiveness as well as adding weight to the final wall module.

A further parameter of importance when designing wall modules is the interior surface, which should provide an aesthetic and functional area within the compartment formed by the wall module. The need for functionality is even greater for installations intended for being used for longer periods of time, where the person using the workspace may want to use the wall panel for storage purpose. Traditionally, wall modules are not allowing this functionality.

There is therefore a need for improved wall modules.

Summary An object of the present invention is to provide an improved wall module which solves the above-mentioned drawbacks of available systems of today. In particular, the present invention aims to provide a wall module with specific user functionality, which user functionality also improves the acoustic properties of the wall module.

According to a first aspect, a wall module is provided. The wall module comprises an interior first wall panel, an opposing second wall panel, and a sound absorbing material arranged between the first wall panel and the second wall panel. At least the first wall panel comprises a pegboard portion. By providing at least a part of the first wall panel as a pegboard, full sound reflection by the first wall panel is reduced but instead the acoustic waves will propagate into the pegboard and be absorbed by the sound absorbing material. The inventors have surprisingly realized that this unexpected technical effect is achieved when developing a wall module with improved user functionality, as the pegboard will allow for efficient and extremely user friendly storage and positioning of various small items to the wall module.

The pegboard portion may be in the form of a planar panel being provided with a plurality of perforations. Preferably the perforations provide a total open area corresponding to 2-12%, more preferably 3-l0%, ofthe total area of the first wall panel, and/or wherein at least some of the perforations have a smallest dimension of 0,5-5 mm. These perforations provide an air passage through the first wall panel such that acoustic waves can reach the sound absorbing material instead of being reflected by the first wall panel.

The perforations may be regularly spaced, and in one embodiment they are elongated in the vertical direction. This configuration for regularly spacing allows them to be easily used for hanging, or by other ways attaching small items to the wall module. Yet further, hangers, hooks, or the like can be configured to attach to two or more perforations in order to increase stability of the item to be hung to the pegboard. Due to the equal spacing of the perforations, increased flexibility in terms of item positioning is achieved even when using hangers that require two or more perforations.

The pegboard portion may extend across a part of the width ofthe wall module, such as 90% or less ofthe total width ofthe wall module. This allows the full width of the wall module to be used both for increased functionality (i.e. to attach small items), and for improving acoustic properties of the space confined by the wall module.

The pegboard portion may form an integral part of the first wall panel. This facilitates manufacturing and provides less complexity, and also improves robustness of the entire first wall panel.

The first wall panel may comprise a bottom portion and an upper portion, wherein the pegboard portion is arranged vertically between the bottom portion and the upper portion. This ensures that small items can be attached to the wall module in a reachable area for a user. Yet further, leaving the upper and bottom portion without any pegboard portion allows the upper and bottom portion to be provided with additional components such as top and bottom profiles for attachment to floor and/or ceiling modules. At the same time a more aesthetically appealing design is provided. The provision of upper and bottom portions will also arrange the pegboard portion vertically closer to the mouth/ear of people, which has proven to be beneficial with regards to acoustic dampening performance. Further it has been realized that the configuration of the pegboard portion and the upper and bottom portions will also improve sound dampening in the mid-frequency range, as the interior area ofthe wall module above and below the pegboard portion increases the sound absorbing volume for the acoustic waves being transmitted through the pegboard portion.

According to one embodiment the pegboard portion may constitute a central portion extending along 20-75% ofthe total height ofthe first wall panel, such as 25-60%, and being surrounded by a bottom portion and an upper portion lacking pegboard functionality.

According to one embodiment the sound absorbing material is located inside ofthe pegboard portion and also inside of at least one ofthe bottom portion and the upper portion, preferably inside both of the bottom portion and the upper portion, and essentially lacking any divisions separating the sound absorbing material inside of the pegboard portion from the sound absorbing material inside of the bottom and/or upper portion. In this manner, sound waves entering the perforations of the pegboard may be dampened not only by the sound absorbing material located inside of the pegboard portion but also by the sound absorbing material located below and/or above the pegboard portion, resulting in more efficient sound absorption.

The bottom portion, the upper portion, and the pegboard portion may each have exterior surfaces arranged in a common plane. A planar configuration is beneficial for various purposes, such as transport, packaging, etc.

The first wall panel has a first thickness and the pegboard portion has a second thickness which may be smaller than the first thickness. In another embodiment, the thickness ofthe first wall panel is substantially equal to the thickness of the pegboard portion. Preferably, hangers or hooks may protrude on the inner side of the pegboard, thereby providing a more robust attachment of small items to the pegboard. At least one ofthe first wall and second wall panel may comprise a wood based board material, such as MDF board (medium density fibre board), HDF board (high density fibre board), plywood, particle board, OSB (oriented strand board) and solid wood. The thickness of the first wall panel may be in the range of 4-l5 mm.

An air gap may be provided between the pegboard portion and the sound absorbing material. As mentioned before this allows hangers or hooks to be attached in a firmer manner, but it also improves the sound absorbing properties ofthe pegboard as the space formed by the air gap will form an acoustic trap.

The sound absorbing material may be made of recycled textiles, wood wool, dry-paper-mixed-with-clothes-fluff material, coconut fibres, rice straw, or mineral wool, such as stone wool or glass fibre, or other materials being suitable for sound absorption.

The sound absorbing material may have a vertical extension along the entire pegboard portion, preferably the vertical extension of the sound absorbing material is exceeding the vertical extension of the pegboard portion. The sound absorbing material may extend vertically along the entire first wall and second wall panels. This further improves the sound insulation ofthe wall module.

The wall module may further comprise a barrier, preferably in the form of a flexible sheet formed by textile fabric made by woven, knitted, or nonwoven manufacturing process, the barrier being arranged between the first wall panel and the sound absorbing material. The barrier may have a thickness of maximum 2 mm, such as 0,l-l mm. Such barrier will prevent hangers or hooks, used to attach small items to the pegboard portion, to engage with and possibly damage the sound absorbing material. The barrier may have an air ﬂow resistivity of 50- 600 Pa s/mz according to ISO 9053. In this way the barrier also provides for a certain sound absorbing effect, which is beneficial to the total sound absorbing effect ofthe wall module.

The wall module may further comprise an insulating layer arranged between the sound absorbing material and the second wall panel. The insulating layer will further improve the sound insulation ofthe wall module, as well as providing additional benefits in terms of temperature control, etc.

The wall module may further comprise a pair of boards, wherein an inner board is arranged between the insulating layer and the sound absorbing material, and an outer board is arranged between the insulating layer and the second wall panel. This provides for additional robustness of the wall module and also allows more flexibility in the choice of material for the first wall and second wall panels as full rigidity may be accomplished by the pair of boards.

The wall module may further comprise at least one edge connector arranged on at least one vertically extending side edge of the wall module. Such edge connector can be configured to allow for attachment to adjacent wall modules, and/or to join and align the internal components of the wall module.

The wall module may further comprise at least one connection element being adapted to be inserted into said pegboard portion. This provides means for attaching items to the pegboard portion.

The connection element may comprise a hanger portion being dimensioned such that it protrudes, when inserted into the pegboard portion, towards the area of the sound absorbing material. In some embodiments, the hanger portion will form a depression in the sound absorbing material.

The connection element may further comprise an engagement portion protruding, when the connection element is inserted into the pegboard portion, out from the first wall panel/pegboard portion, wherein the engagement portion is configured to hold an item at a fixed position relative the wall module.

According to a second aspect a compartment is provided, comprising at least one wall formed by at least one wall module according to the first aspect.

Brief Description of the Drawings The invention and its many advantages will be described in more detail below with reference to the accompanying schematic drawings, which for the purpose of illustration show some non-limiting embodiments and in which Fig. la is an isometric view of a confined space formed by a plurality of wall modules; Fig. 2 is an isometric view of a wall module according to an embodiment; Fig. 3a-3c are cross-sectional views ofa wall module according to an embodiment, Fig. 4 is an isometric view of a hanger forming part of a wall module according to an embodiment; and Fig. 5 is an isometric view of a wall module comprising the hanger shown in Fig. 4.

Detailed Description Starting in Fig. 1 a confined space 1 is shown. The confined space 1 may be any type of space but here it is showing an indoor workspace, e.g. a meeting room, delimited from the exterior area 3. For illustrative purposes the workspace 1 is furnished with a desk 5 and six chairs 7 (only one being provided with the reference numeral), thus indicating a suitable size and possible activities within the workspace 1.

The workspace is constructed by a plurality of wall modules 10, 100 together forming the four walls 9a-d ofthe workspace 1. The wall modules 10, 100 are joined along their lateral edges by any suitable means. Optionally the space 1 may be provided with a ceiling (not shown), in such case the ceiling may be formed by one or more ceiling modules joined to each other, as well as to the upper edge ofthe wall modules 10, 100. The size of each wall module 10, 100 may be selected according to various user preferences; in one embodiment the wall module 10, 100 has a height of 240 cm and a width of 60 cm.

Different wall modules 10, 100 can be used to form the walls 9a-d ofthe workspace 1. For example, a specific wall module 10 may form a door opening, a window pane, or similar. In order to improve functionality and sound absorption, at least one wall 9a-d is formed by at least one specific wall module 100. In the shown example of Fig. 1 there are five wall modules 100; the wall 9b is formed by two wall modules 100 joined to three wall modules of other types, while wall 9c is formed by three wall modules 100 joined to two modules of other types.

It should be realized that the exact number and configurations of the wall modules 100 can vary; for example each wall 9a-d may be formed using wall modules 100 only, or only one wall module 100 may be provided for a single space 1.

Now turning to Fig. 2 the wall module 100 is shown in more detail. The wall module 100 is standing upright, thus indicating its intended position when assembled to form part of a wall 9a-d. Throughout this specification any reference to ““vertically” refers to this shown position, i.e. during intended use. The vertical direction is in Fig. 2 indicated by the arrow and the associated reference V.

The wall module 100 comprises an first wall panel 110, in this embodiment facing the interior of the work space 1 and thus intended to form the inner wall surface ofthe wall module 100. On its opposite side there is an external panel 120, intended to form the outside wall surface of the wall module 100. The first wall panel 110 comprises a pegboard portion 130. As can be seen in Fig. 2 the first wall panel 110 comprises an upper portion 112 and a bottom portion 114, while the pegboard portion 130 is arranged in between the upper and bottom portions 112, 114. However, various modification ofthe first wall panel 110 could be realized with regards to the pegboard portion 130. For example, the first wall panel l10 may be entirely formed as the pegboard portion 130, or the pegboard portion 130 may be formed only as a small fraction ofthe first wall panel 1 10.

In the shown example the pegboard portion 130 is formed as the middle third ofthe first wall panel 110, the upper and bottom portions 112, 114 forming the upper and bottom thirds, respectively. The vertical position ofthe pegboard portion 130 may however be provided differently, as indicated in Fig. 1 (see leftmost wall module 100 of wall 9b). The shape ofthe pegboard portion 130 may also be varied. In Fig. 2 the pegboard portion 130 is rectangular, arranged inside a frame 134 extending across the entire width ofthe first wall panel 110. The pegboard portion 130 is thereby extending across a part of the width ofthe wall module 100, such as 90% or less. Preferably, the pegboard portion 130 is centrally arranged within the wall module 100, at least relative a longitudinal/vertical centre line. In other embodiments the pegboard portion 130 is circular, oval, or of any other suitable shape extending entirely or partly across the width of the first wall panel 110.

Preferably, and as shown in Fig. 2, the pegboard portion 130 is in the form of a planar panel being provided with a plurality of perforations 132 extending through the planar panel. The perforations 132 are regularly spaced and has an elongated shape in the vertical direction. The perforations 132 can be distributed in various configurations, for example in rows and columns. In the shown example each second row is shifted laterally, such that a perforation 132 of a specific row is vertically aligned with a gap between two perforations 132 ofthe adjacent rows. However, variations to this configuration are possible.

The pegboard portion 130 is formed as an integral part ofthe first wall panel 110. Hence the entire first wall panel 110, including the pegboard portion 130, can be manufactured from a single board of material such as MDF, HDF, plywood, etc. Optionally the pegboard portion 130 is formed as a separate part being joined to the first wall panel, e.g. to the upper and bottom portions 112, 114 by any suitable attachment means.

By the provision of the pegboard portion 130 a number of different small items 20 can be attached to the wall module 100.

Now turning to Fig. 3a details of the wall module 100 are shown in cross- section, taken along line AA in Fig. 2 but omitting everything being attached to the pegboard portion 130.The first wall panel 110 forms the inwards facing surface of the wall module 100, and extends across the entire width of the wall module 100. A sound absorbing material 140 is arranged inside the first wall panel 110, to dampen acoustic waves travelling towards the first wall panel 110 as explained above. The sound absorbing material 140, which may comprise any suitable material for the intended purpose such as glass mineral wool, stone mineral wool, etc., is covered by a flexible mechanical barrier 150, preferably in the form of a thin sheet of nonwoven material. Hence, the barrier 150 is arranged between the first wall panel 110 and the sound absorbing material 140.

Additional structural components are arranged inside the wall module 100. Inside the sound absorbing material 140, i.e. between the sound absorbing material 140 and the second wall panel 120, two boards 160, 162 and an insulating material 170 are arranged. The pair of boards 160, 162 and the insulating material 170 form a sandwich structure such that the first board 160 is arranged adjacent to the sound absorbing material 140, while the second board 162 is arranged adjacent to the second wall panel 120. The insulating material 170 is arranged between the boards 160, 162.

The insulating material 170 may be any suitable material for the intended purpose, such as mineral wool, foam material, polymeric fibre material, etc. The boards 160, 162 may typically be made of plywood, MDF, HDF, or similar, in particular they may be designed to provide the required stiffness of the entire wall module 100.

The sandwich structure formed by the boards 160, 162 and the insulating material 170 provides robustness to the wall module 100 thereby allowing greater flexibility and design freedom when choosing the materials ofthe first wall and second wall panels 110, 120. These panels 110, 120 may for example be made of MDF board, HDF board, plywood, particle board, solid wood, plastic, metal, or any suitable material.

As can be seen in Fig. 3a edge connectors 180a-b are arranged on the respective vertically extending side edges ofthe wall module 100. These edge connectors 180a-b, which typically extend along the entire vertical extension of the wall module 100 do not only provide connection means for adjacent wall modules 10, 100 when building a workspace 1, but they also assist in aligning and ensuring correct positioning of the internal components of the wall module 100.

All internal components 110, 120, 140, 150, 160, 162, 170 of the wall module 100 may extend across the entire width and length ofthe wall module 100, possibly adjusted due to the shape and configuration of the edge connectors 180a-b.

Previously it has been discussed that the pegboard portion 130 improves the sound absorption characteristics of the wall module 100. This is further explained with reference to Fig. 3b, which shows a cross section of the wall module at lines BB (see Fig. 2). In this figure, special focus is given to the enlarged lower section showing parts of the pegboard portion 130 in relation to the sound absorbing material 140.

The pegboard portion 130 is arranged inside the frame 134 on which there are no perforations 132. In Fig. 3b, the frame 134 is indicated as a lateral portion. At the area ofthe perforations 132, i.e. inwards ofthe lateral portion 134, the pegboard portion 130 may have a reduced thickness compared to the lateral portion 134; the thickness ofthe lateral portion 134 ofthe pegboard portion 130 is preferably the same as the thickness ofthe first wall panel 110.

This optional reduction of thickness ofthe pegboard portion 130 is preferably effected from the inside of the wall module 100, i.e. an outer side 110a ofthe first wall panel 110 (see also Fig. 2) as well as the lateral portion 134, forming the interior surface 100a ofthe wall module 100 (see also Fig. 2), is arranged in the same vertical plane as an outer side 130a of the pegboard portion 130. It should however be noted that the wall module 100 may be oriented differently due to user preferences, such as the interior surface 100a of the wall module 100 will in fact, in some embodiments, instead form an exterior surface.

As the sound absorbing material 140 and the barrier 150 have planar surfaces, an air gap 136 is formed between the pegboard portion 130 and the sound absorbing material 140 as a result ofthe lower thickness ofthe pegboard portion 130 in the area ofthe perforations 132. This air gap 136, typically having a thickness of a few millimetres, will primarily facilitate the use of hangers for the pegboard portion 130. The acoustic waves being generated in the workspace 1 will, instead of being reflected by the entire wall panel 100, be allowed to enter through the perforations 132 of the pegboard portion 130, further into the air gap 136 if such is present, and eventually be absorbed by the sound absorbing material 140 and to some extent also by the barrier 150. The pegboard portion 130 thus provides both means for attaching small items to the wall module 100 and significant improvement in terms of sound absorption. The relative open area, meaning the total open area in mmz of all perforations 132 divided by the total face area in mmz, i.e. the width multiplied by the height, ofthe entire first wall panel 110, corresponds to 2-12%, more preferably 3-10%. In one embodiment the total open area, in mmz, of all perforations 132 may correspond to 4% ofthe total face area, in mmz, ofthe entire first wall panel 110. The barrier 150 will also provide sound absorption; typically the barrier 150 will have a certain air ﬂow resistivity, such as an air flow resistivity of 50-600 Pa s/mz according to ISO 9053, preferably an air flow resistivity of 200-600 Pa s/mz, and this will provide for additional sound absorption.

The sound absorbing material 140 is located inside of the pegboard portion 130 and preferably also inside of at least one ofthe bottom portion 114 and the upper portion 112, preferably inside both ofthe bottom portion 114 and the upper portion 112, and essentially lacking any divisions separating the sound absorbing material 140 inside ofthe pegboard portion 130 from the sound absorbing material inside of the bottom and/or upper portion 114, 112. In the embodiment shown in Fig. 3c the sound absorbing material 140 extends continuously and without separating parts, e.g. beams, from bottom of the module, past the pegboard portion 130, and up to the top ofthe wall module. In this manner, sound waves entering the perforations 132 of the pegboard portion 130 may be absorbed not only by the sound absorbing material 140 located immediately inside of the pegboard portion 130 but also by the sound absorbing material 140 located behind the upper portion 112 and behind the lower portion 114, resulting in more efficient sound absorption.

Regarding the added functionality for attachment of small items reference is made to Figs. 4 and 5. An example of a connection element 200 is shown in Fig. 4, which forms part ofthe wall module 100 in some embodiments. The connection element 200 is adapted to be inserted into said pegboard portion 130 via the perforations 132 (see Fig. 5). For attaching small items such as baskets, cups, or similar, or other items being configured to be hung e.g. by being provided with a strap or eyelet, the connection element 200 comprises a hanger portion 202 such that the connection element 200 can be hung to one ofthe perforations 132 ofthe pegboard portion 130. The hanger portion 202 is dimensioned such that it protrudes, when inserted into the pegboard portion 130, into the area behind the pegboard portion 130 and the hanger portion 202 may interact with the sound absorbing material 140 thereby forming a depression in the sound absorbing material 140. Here, the barrier 150, illustrated in Fig. 3b, will protect the sound absorbing material 140 from direct contact with the hanger portion 202 and will prevent the hanger portion 202 from damaging the sound 11 absorbing material 140 Which otherwise Would be possible, especially if soft materials are used for the sound absorbing material 140.

The connection element 200 may further comprise an engagement portion 204, here in the shape of a hook, protruding, When the connection element 200 is inserted into the pegboard portion 130, out from the first Wall panel 110. The engagement portion 204 is configured to hold an item at a fixed position relative the Wall module. The engagement portion 204 could be made in various configurations, eg. a pinch, etc.

In addition the connection element 200 may have a fixation element 206 facing in the same direction as the hanger portion 202, and configured to be inserted into another perforation 132 of the pegboard portion 130. The fixation element 206 is here in the form of a peg, Which prevents the connection element 200 from lateral movement When the peg 206 is inserted in a perforation 132. As the fixation element 206 Will add a second fixation point for the connection element 200 the position ofthe connection element 200 relative the pegboard portion 130 Will be secured.

The examples described above allow for an upgraded Wall module as improved functionality, i.e. the possibility to attach small items to the Wall module, is accomplished Which functionality also contributes to significantly better acoustic properties.

Claims

1. A wall module (100), comprising a first wall panel (110), an opposing second wall panel (120), and a sound absorbing material (140) arranged between the first wall panel (110) and the second wall panel (120), wherein at least the first wall panel (110) comprises a pegboard portion (130).

2. The wall module (100) according to claim 1, wherein the pegboard portion (130) is in the form of a planar panel being provided with a plurality of perforations (132), preferably said perforations providing a total open area corresponding to 2-12%, more preferably 3-10%, ofthe total area ofthe first wall panel, and/or wherein at least some of the perforations have a smallest dimension of 0,5-5 mm.

3. The wall module (100) according to claim 2, wherein the perforations (132) are regularly spaced.

4. The wall module (100) according to any of claims 1-3, wherein the perforations (132) are elongated in the vertical direction.

5. The wall module (100) according to any ofthe preceding claims, wherein the pegboard portion (130) extends across a part ofthe width ofthe wall module (100), preferably the pegboard portion (130) extends across 90% or less ofthe width ofthe wall module (100).

6. The wall module (100) according to any ofthe preceding claims, wherein the pegboard portion (130) forms an integral part ofthe first wall panel (110).

7. The wall module (100) according to any ofthe preceding claims, wherein the first wall panel (110) comprises a bottom portion (114) and an upper portion (112), and wherein the pegboard portion (130) is arranged vertically between the bottom portion (114) and the upper portion (112).

8. The wall module (100) according to claim 7, wherein the bottom portion (114), the upper portion (112), and the pegboard portion (130) each have exterior surfaces (114s, 112s, 130s) arranged in a common plane.

9. The Wall module (100) according to claim 7 or 8, Wherein the pegboard portion (130) constitutes a central portion extending along 20-75% of the total height of the first Wall panel (110), such as 25-60%, and being surrounded by the bottom portion (114) and the upper portion (112) lacking pegboard functionality.

10. The Wall module (100) according to any of the preceding claims, Wherein the first Wall panel (110) has a first thickness and the pegboard portion (130) has a second thickness being smaller than the first thickness, and/or Wherein at least one ofthe first Wall and second Wall panel comprises a Wood based board material, such as MDF board (medium density fibre board), HDF board (high density fibre board), plywood, particle board, OSB (oriented strand board) and solid Wood, and/or Wherein the thickness of the first Wall panel is 4- 15 mm.

11. The Wall module (100) according to any ofthe preceding claims, Wherein an air gap (136) is provided between the pegboard portion (130) and the sound absorbing material (140).

12. The Wall module (100) according to any of the preceding claims, Wherein the sound absorbing material (140) comprises recycled textiles, Wood Wool, dry-paper-mixed-With-clothes-fluff material, coconut fibres, rice straW, or mineral Wool, such as stone Wool or glass fibre.

13. The Wall module (100) according to any of the preceding claims, Wherein the sound absorbing material (140) has a vertical extension along the entire pegboard portion (130), preferably the vertical extension of the sound absorbing material (140) is exceeding the vertical extension of the pegboard portion (130).

14. The Wall module (100) according to any of the preceding claims, Wherein the sound absorbing material (140) extends along the entire first Wall and second Wall panels (110, 120).

15. The Wall module (100) according to any of the preceding claims, further comprising a barrier (150), preferably formed by a textile fabric made by Woven, knitted, or nonWoVen manufacturing process, arranged between inside ofthe first wall panel (110) and the sound absorbing material (140), the barrier (150) having a thickness of maximum 2 (??) mm, such as 0,1-1 mm, and/or the barrier (150) having an air flow resistivity of 50-600 Pa s/mz according to ISO

16. The wall module (100) according to any of the preceding claims, further comprising an insulating layer (170) arranged between the sound absorbing material (140) and the second wall panel (120).

17. The wall module (100) according to claim 16, further comprising a pair of boards (160, 162), wherein an inner board (160) is arranged between the insulating layer (170) and the sound absorbing material (140), and an outer board (162) is arranged between the insulating layer (170) and the second wall panel (120).

18. The wall module (100) according to any of the preceding claims, further comprising at least one edge connector (180a-b) arranged on at least one vertically extending side edge ofthe wall module (100).

19. The wall module according to any ofthe preceding claims, further comprising at least one connection element (200) being adapted to be inserted into said pegboard portion (130).

20. The wall module according to claim 19, wherein the connection element (200) comprises a hanger portion (202) being dimensioned such that it protrudes, when inserted into the pegboard portion (130), towards the area of the sound absorbing material (140).

21. The wall module according to claim 19 or 20, wherein the connection element (200) further comprises an engagement portion (204) protruding, when the connection element (200) is inserted into the pegboard portion (130), out from the first wall panel (110), wherein the engagement portion (204) is configured to hold an item (20) at a fixed position relative the wall module (100).

22. A compartment (1), comprising at least one wall (9a-b) formed by at least one wall module (100) according to any ofthe preceding claims.