An integrated ventilated lighting fabricated wall system

Abstract

This invention relates to a prefabricated wall system integrating ventilation and lighting, comprising multiple wall assembly units, a keel, and lamp bodies. The keel is disposed on the back of the multiple wall assembly units, connecting and supporting them. In this invention, supply and return air ducts are installed between the keel and the wall panels, placing them at a low position, facilitating subsequent inspection and maintenance, and fully utilizing the space between the wall panels and the keel. The coordination between the supply air duct and the air outlet, and the coordination between the return air duct and the return air outlet, allows for flexible expansion of ventilation during installation and use, thus facilitating the creation of a good ventilation environment in public spaces such as hospital corridors.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a prefabricated wall system integrating ventilation and lighting. Background Technology

[0002] Prefabricated wall systems are quick to construct and have low production costs, leading to their rapid adoption in building construction. Currently, most prefabricated wall systems utilize a keel frame to support decorative panels, forming the wall structure. Ceilings and skirting boards are installed above and below the prefabricated wall using connectors. Insulation is filled in the space between the prefabricated wall and the building's interior walls, and ventilation ducts and lighting are installed above the ceiling.

[0003] The above-mentioned prefabricated wall system has the following drawbacks: 1. The ventilation ducts installed above the ceiling require long duct materials and need to have access panels reserved in the ceiling, making the maintenance and repair of the ventilation system inconvenient; 2. The placement of ventilation openings in the ceiling is relatively limited, generally fixed near the access panels, making it difficult to flexibly construct a good ventilation environment in public spaces such as hospital corridors; 3. There is a waste of space between the prefabricated wall and the interior walls of the building, which is not fully utilized. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] This invention provides a prefabricated wall system with integrated ventilation and lighting, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An integrated ventilation and lighting prefabricated wall system includes multiple sets of wall assembly units, a keel, and a lamp body. The keel is disposed on the back of the multiple sets of wall assembly units, connecting and supporting the multiple sets of wall assembly units.

[0009] The wall assembly unit includes a wall panel, a top inclined section, a bottom skirting board, an air supply duct, a return air duct, air supply duct connectors, and return air duct connectors. The top inclined section is located at the top of the wall panel, and the bottom skirting board is located at the bottom of the wall panel, with the bottom skirting board recessed inward from the wall panel to form a "..." The structure is as follows: the air supply duct is set horizontally on the back of the upper section of the wall panel, and the return air duct is set horizontally on the back of the lower section of the wall panel. The air supply ducts of each wall assembly unit are interconnected to form the air supply pipeline of the prefabricated wall system, and the return air ducts of each wall assembly unit are interconnected to form the return air pipeline of the prefabricated wall system.

[0010] In at least a portion of the plurality of wall assembly units, an air outlet is formed on the top inclined portion, and the air supply duct and the air outlet are connected by an air supply duct connector.

[0011] In at least a portion of the multiple sets of wall assembly units, a return air vent is formed on the bottom skirting board, and the return air duct is connected to the return air vent through a return air duct connector.

[0012] In at least a portion of the plurality of wall assembly units, the lamp body is assembled on the top inclined portion.

[0013] Preferably, the wall assembly unit further includes a buckle connected to the ceiling, which is disposed at the upper end of the top inclined portion.

[0014] In a further preferred embodiment, the prefabricated wall system with integrated ventilation and lighting also includes an inside corner connection unit or an outside corner connection unit for connecting and setting between the multiple sets of wall assembly units.

[0015] In a further preferred embodiment, the inner corner connecting unit includes an inner arc-shaped wall panel, an inner arc-shaped inclined portion, an inner arc-shaped skirting board portion, an inner arc-shaped air supply duct, and an inner arc-shaped return air duct. The inner arc-shaped inclined portion and the inner arc-shaped skirting board portion are respectively formed on the top and bottom of the inner arc-shaped wall panel. The inner arc-shaped air supply duct is disposed on the back side of the upper section of the inner arc-shaped wall panel, and both ends of the inner arc-shaped air supply duct are connected to adjacent air supply ducts. The inner arc-shaped return air duct is disposed on the back side of the lower section of the inner arc-shaped wall panel, and both ends of the inner arc-shaped return air duct are connected to adjacent return air ducts. The cross-sections of the inner arc-shaped wall panel, the inner arc-shaped inclined portion, the inner arc-shaped skirting board portion, the inner arc-shaped air supply duct, and the inner arc-shaped return air duct are all configured as inwardly concave arc shapes.

[0016] In a further preferred embodiment, the external corner connecting unit includes an outer arc-shaped wall panel, an outer arc-shaped inclined portion, an outer arc-shaped skirting board portion, an outer arc-shaped air supply duct, and an outer arc-shaped return air duct. The outer arc-shaped inclined portion and the outer arc-shaped skirting board portion are respectively formed on the top and bottom of the outer arc-shaped wall panel. The outer arc-shaped air supply duct is disposed on the back side of the upper section of the outer arc-shaped wall panel, and both ends of the outer arc-shaped air supply duct are connected to adjacent air supply ducts. The outer arc-shaped return air duct is disposed on the back side of the lower section of the outer arc-shaped wall panel, and both ends of the outer arc-shaped return air duct are connected to adjacent return air ducts. The cross-sections of the outer arc-shaped wall panel, the outer arc-shaped inclined portion, the outer arc-shaped skirting board portion, the outer arc-shaped air supply duct, and the outer arc-shaped return air duct are all configured as outwardly convex arc shapes.

[0017] In a further preferred embodiment, the keel is composed of at least two sets of vertical beams and at least two sets of horizontal beams, with the at least two sets of horizontal beams passing through the vertical beams and the vertical beams and horizontal beams being fixedly connected. The horizontal beams are connected to the wall panels, and the air supply duct and return air duct are both connected to the vertical beams.

[0018] In a further preferred embodiment, the gap between the wall panel and the keel is filled with thermal insulation and sound insulation cotton.

[0019] In a further preferred embodiment, a wall heating system is installed on some of the wall panels.

[0020] In a further preferred embodiment, the buckle has outwardly protruding claws, which are configured as downwardly inclined triangles. The side of the ceiling near the buckle has a groove that engages with the buckle, allowing the claws of the buckle to pass through the groove and be securely connected to the ceiling by the deformation of the buckle.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides a prefabricated wall system integrating ventilation and lighting, which has the following beneficial effects:

[0023] 1. In this invention, the supply air duct and return air duct are installed between the keel and the wall panel, so that the supply air duct and return air duct are located at a low position, which facilitates subsequent inspection and maintenance by workers, and can make full use of the space between the wall panel and the keel.

[0024] 2. In this invention, the combination of air supply duct and air outlet, as well as the combination of return air duct and return air outlet, makes it easy to flexibly expand ventilation during installation and use, thereby facilitating the construction of a good ventilation environment in public spaces such as hospital corridors.

[0025] 3. In this invention, the wall panels and ceiling are assembled by snap-fit ​​connection, and the skirting board is integrated, which can standardize the installation of prefabricated buildings, reduce the use of connecting parts, and thus improve the convenience of construction and installation of prefabricated buildings.

[0026] 4. In this invention, by installing the lamp body on the inclined part at the top of the wall panel, the inclined lamp body is more conducive to lighting use and can avoid direct viewing angle, thereby preventing glare.

[0027] 5. In this invention, the downward arrangement of the return air vents makes it difficult for dust to fall and accumulate at the return air vents, making it easy to keep clean for a long time. At the same time, the return air vents can be hidden on the front of the prefabricated building wall, which improves the aesthetics of the prefabricated building.

[0028] 6. In this invention, the combined use of a wall heating system and thermal insulation and sound insulation cotton enables the prefabricated building wall system to complete heating and energy supply, making it easier to maintain the temperature of the indoor space. Attached Figure Description

[0029] Figure 1 A structural diagram of the prefabricated wall system with integrated ventilation and lighting, according to the implementation plan, when used as a decorative wall.

[0030] Figure 2 A structural diagram of the prefabricated wall system with integrated ventilation and lighting, according to the implementation plan, when used as a partition wall;

[0031] Figure 3 This is a schematic diagram of the cooperative structure of the two sets of wall assembly units according to the implementation plan.

[0032] In the diagram: 10. Wall assembly unit; 11. Wall panel; 12. Top sloping section; 121. Air outlet; 13. Bottom skirting board; 131. Return air outlet; 14. Clip; 15. Supply air duct; 16. Return air duct; 17. Supply air duct connector; 18. Return air duct connector; 20. Keel; 30. Light fixture; 40. Internal corner connection unit; 41. Inner curved wall panel; 42. Inner curved sloping section; 43. Inner curved skirting board; 44. Inner curved supply air duct; 45. Inner curved return air duct; 50. External corner connection unit; 51. Outer curved wall panel; 52. Outer curved sloping section; 53. Outer curved skirting board; 54. Outer curved supply air duct; 100. Ceiling. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 3 A prefabricated wall system integrating ventilation and lighting may include multiple wall assembly units 10, keel 20, lamp holders 30, internal corner connection units 40, and external corner connection units 50. The keel 20 supports the wall assembly units 10, and the wall assembly units 10, internal corner connection units 40, and external corner connection units 50 are combined to form a continuous wall. The lamp holders 30 are mounted on the wall assembly units 10 for lighting purposes.

[0035] In this embodiment, the wall assembly unit 10 may include a wall panel 11, a top inclined portion 12, a bottom skirting board portion 13, a clip 14, an air supply duct 15, a return air duct 16, an air supply duct connector 17, and a return air duct connector 18. The wall panel 11 may be made of PVC plastic sheet, a material that provides moisture resistance, insect protection, and corrosion resistance, and is an environmentally friendly building material. The top of the wall panel 11 has a top inclined portion 12, the inclination angle of which can be set to 15° to 45°. A light fixture 30 can be installed on a portion of the top inclined portion 12. The width of this inclined surface can be set to 15cm to 45cm to accommodate the installation of common size light fixtures 30. The clip 14 is fixed to the upper end of the top inclined portion 12 and used for connection with the ceiling assembly. The clip 14 has outwardly protruding hooks, which are shaped like downward-sloping triangles. A corresponding groove is formed on the side of the ceiling near the clip 14, allowing the hooks of the clip 14 to pass through the groove and securely connect with the ceiling using the deformation of the clip 14. The clip 14 can also adopt other common clip forms in existing technology, which will not be elaborated here. A bottom skirting board portion 13 is formed at the bottom of the wall panel 11. The bottom skirting board portion 13 is recessed inward from the wall panel 11, forming a… The wall panel 11 has a horizontal air supply duct 15 located on the back of the upper section of the wall panel 11. The air supply ducts 15 of each wall assembly unit 10 are interconnected to form the air supply duct of the prefabricated wall system. The return air duct 16 is located horizontally located on the back of the lower section of the wall panel 11. The return air ducts 16 of each wall assembly unit 10 are interconnected to form the return air duct of the prefabricated wall system. In at least a portion of the multiple wall assembly units 10, an air outlet 121 is formed on the top inclined portion 12, and the air supply duct 15 and the air outlet 121 are connected by an air supply duct connector 17. In at least a portion of the multiple wall assembly units 10, a return air inlet 131 is formed on the bottom skirting board portion 13, and the return air inlet 131 faces the ground. The return air duct 16 and the return air inlet 131 are connected by a return air duct connector 18.

[0036] In this embodiment, a grille is bolted to the air outlet 121, and the grille can be removed after loosening the bolts. Both ends of the air supply duct connector 17, both ends of the air supply duct 15, and the top of the air supply duct 15 all have openings. The side of the air outlet 121 facing the keel 20 is bolted to the top of the air supply duct connector 17, and the air outlet 121 communicates with the top opening of the air supply duct connector 17. The bottom of the air supply duct connector 17 is bolted to the top of the air supply duct 15, and the bottom opening of the air supply duct connector 17 communicates with the top opening of the air supply duct 15. The air supply duct 15 is bolted to the keel 20 near the air outlet 121, and the ends of adjacent air supply ducts 15 are bolted together, allowing adjacent air supply ducts 15 to communicate with each other through their end openings, enabling airflow to flow in the air supply duct and be discharged into the room through the air outlet 121.

[0037] A grille is also bolted to the return air vent 131, and this grille can be removed after loosening the bolts. Both ends of the return air duct connector 18, both ends of the return air duct 16, and the bottom of the return air duct 16 all have openings. The side of the return air vent 131 facing the keel 20 is bolted to the bottom of the return air duct connector 18, and the return air vent 131 communicates with the bottom opening of the return air duct connector 18. The top of the return air duct connector 18 is bolted to the bottom of the return air duct 16, and the top opening of the return air duct connector 18 communicates with the bottom opening of the return air duct 16. The return air duct 16 is bolted to the keel 20 near the return air vent 131, and the ends of adjacent return air ducts 16 are bolted together, allowing adjacent return air ducts 16 to communicate with each other through their end openings, enabling indoor air to flow into the return air duct through the return air vent 131.

[0038] The supply air duct 15, supply air duct connector 17, return air duct 16, and return air duct connector 18 can all be made of lightweight metal plates through bending and welding to form hollow rectangular pipes. Furthermore, rectangular annular connecting pieces are welded to the outer walls of both ends of the supply air duct 15, supply air duct connector 17, return air duct 16, and return air duct connector 18, allowing them to be connected and fixed together using bolts.

[0039] In this embodiment, the keel 20 consists of at least two sets of vertical beams and at least two sets of horizontal beams. The horizontal beams pass through the vertical beams, and the vertical and horizontal beams are fixed together by welding or bolts. The horizontal and vertical beams can be made of existing steel profiles, and multiple sets of mounting holes can be pre-drilled on their surfaces for connection to other structures and building interior walls. The horizontal beams are connected to the wall panel 11 by bolts, and the supply air duct 15 and return air duct 16 are fixed to the vertical beams by bolts.

[0040] In this embodiment, the inner corner connection unit 40 includes an inner arc-shaped wall panel 41, an inner arc-shaped inclined portion 42, an inner arc-shaped skirting board portion 43, an inner arc-shaped air supply duct 44, and an inner arc-shaped return air duct 45. The inner arc-shaped inclined portion 42 and the inner arc-shaped skirting board portion 43 are respectively formed on the top and bottom of the inner arc-shaped wall panel 41. The inner arc-shaped air supply duct 44 is disposed on the back side of the upper section of the inner arc-shaped wall panel 41, and both ends of the inner arc-shaped air supply duct 44 are connected to adjacent air supply ducts 15. The inner arc-shaped return air duct 45 is disposed on the back side of the lower section of the inner arc-shaped wall panel 41, and both ends of the inner arc-shaped return air duct 45 are connected to adjacent return air ducts 16. The cross-sections of the inner arc-shaped wall panel 41, the inner arc-shaped inclined section 42, the inner arc-shaped skirting board section 43, the inner arc-shaped air supply duct 44, and the inner arc-shaped air return duct 45 are all designed as inwardly concave arc shapes. The internal corner connection unit 40 can be used in combination with the wall assembly unit 10 to change the orientation of the wall and maintain the continuity of the wall.

[0041] In this embodiment, the external corner connection unit 50 includes an outer arc-shaped wall panel 51, an outer arc-shaped inclined portion 52, an outer arc-shaped skirting board portion 53, an outer arc-shaped air supply duct 54, and an outer arc-shaped return air duct. The outer arc-shaped inclined portion 52 and the outer arc-shaped skirting board portion 53 are respectively formed on the top and bottom of the outer arc-shaped wall panel 51. The outer arc-shaped air supply duct 54 is disposed on the back side of the upper section of the outer arc-shaped wall panel 51, and both ends of the outer arc-shaped air supply duct 54 are connected to adjacent air supply ducts 15. The outer arc-shaped return air duct is disposed on the back side of the lower section of the outer arc-shaped wall panel 51, and both ends of the outer arc-shaped return air duct are connected to adjacent return air ducts 16. The cross-sections of the outer arc-shaped wall panel 51, the outer arc-shaped inclined portion 52, the outer arc-shaped skirting board portion 53, the outer arc-shaped air supply duct 54, and the outer arc-shaped return air duct are all configured as outwardly convex arc shapes. The external corner connection unit 50 can be used in combination with the wall assembly unit 10 to change the orientation of the wall and keep the wall continuous.

[0042] In this embodiment, the thermal insulation and sound insulation cotton can be made of porous sound insulation fiber material, such as rock wool or plant fiber, and can be made into sheet or block structure, and filled according to the size of the gap between the wall panel 11 and the keel 20.

[0043] In this embodiment, the wall heating system can utilize existing carbon crystal far-infrared wall heaters. Its main components include an integrated rigid protective layer to increase wear resistance and better protect the heating element, a carbon crystal heating layer, a high-density thermal insulation layer for heat insulation, and an aluminum reflective film for reflecting far-infrared rays, providing insulation, and moisture protection. Under the influence of an alternating electric field, carbon atoms in the heating element undergo molecular motion and intense friction and collision, generating heat energy that is transferred outwards through far-infrared radiation and convection. By installing the heating plate of the wall heating system on the wall, heat energy is continuously and evenly transferred into the room of the building.

[0044] See Figure 2 Multiple wall assembly units 10 can be symmetrically placed in pairs and continuously assembled along the length of the space to be partitioned. During this assembly, multiple sets of keels 20 are pre-fixed to the building's floor, and then the wall assembly units 10, internal corner connection units 40, and external corner connection units 50 are connected and fixed to both sides of the keels 20. During this process, thermal and sound insulation cotton is filled into the gaps between the keels 20 and the wall panels 11, and a wall heating system is installed on some of the wall panels 11.

[0045] See Figure 1During assembly, the prefabricated wall system can be installed along existing walls within the building, fixing the keel 20 to the interior wall. Then, the wall assembly unit 10, the internal corner connection unit 40, and the external corner connection unit 50 are installed and fixed on the side of the keel 20 facing away from the interior wall, forming a continuous decorative wall for the interior. During the assembly, pre-drilled holes and embedding expansion tubes can be pre-drilled at corresponding locations on the interior wall. The keel 20, with mounting holes, is then placed on the interior wall, aligning the pre-drilled holes with the mounting holes. Screws are then used to fix the keel 20 to the interior wall through the pre-drilled holes and mounting holes, completing the keel 20 fixation. Next, insulation and soundproofing cotton can be filled into the gaps between the horizontal and vertical beams of the keel 20. Then, the wall assembly unit 10, the internal corner connection unit 40, and the external corner connection unit 50 can be installed and fixed following the same process as when assembling a partition wall.

[0046] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated wall system integrating ventilation and lighting, characterized in that, It includes multiple sets of wall assembly units (10), keel (20) and lamp body (30), wherein the keel (20) is disposed on the back of the multiple sets of wall assembly units (10) and connects and supports the multiple sets of wall assembly units (10); The wall assembly unit (10) includes a wall panel (11), a top inclined portion (12), a bottom skirting board portion (13), an air supply duct (15), a return air duct (16), an air supply duct connector (17), and a return air duct connector (18). The top inclined portion (12) is located at the top of the wall panel (11), and the bottom skirting board portion (13) is located at the bottom of the wall panel (11). The bottom skirting board portion (13) is recessed inward from the wall panel (11) to form a " "Type structure; the air supply duct (15) is set horizontally on the back of the upper section of the wall panel (11), and the return air duct (16) is set horizontally on the back of the lower section of the wall panel (11). The air supply ducts (15) of each wall assembly unit (10) are interconnected to form the air supply pipeline of the prefabricated wall system, and the return air ducts (16) of each wall assembly unit (10) are interconnected to form the return air pipeline of the prefabricated wall system. In at least a portion of the multiple sets of wall assembly units (10), an air outlet (121) is formed on the top inclined portion (12), and the air supply duct (15) and the air outlet (121) are connected by an air supply duct connector (17). In at least a portion of the multiple sets of wall assembly units (10), a return air vent (131) is formed on the bottom skirting board portion (13), and the return air duct (16) and the return air vent (131) are connected by a return air duct connector (18). In at least a portion of the plurality of wall assembly units (10), the lamp body (30) is assembled on the top inclined portion (12).

2. The prefabricated wall system with integrated ventilation and lighting according to claim 1, characterized in that, The wall assembly unit (10) also includes a buckle (14) connected to the ceiling, which is located at the upper end of the top inclined part (12).

3. The prefabricated wall system with integrated ventilation and lighting according to claim 2, characterized in that: The buckle (14) has outwardly protruding claws, which are set as downwardly inclined triangles. The side of the ceiling near the buckle (14) has a groove that fits and engages with it, so that the claws of the buckle (14) can pass through the groove and be securely connected to the ceiling by the deformation of the buckle (14).

4. The prefabricated wall system with integrated ventilation and lighting according to claim 1, characterized in that, The prefabricated wall system with integrated ventilation and lighting also includes an inside corner connection unit (40) or an outside corner connection unit (50) for connecting the multiple sets of wall assembly units (10).

5. A prefabricated wall system with integrated ventilation and lighting according to claim 4, characterized in that, The inner corner connecting unit (40) includes an inner arc-shaped wall panel (41), an inner arc-shaped inclined portion (42), an inner arc-shaped skirting board portion (43), an inner arc-shaped air supply duct (44), and an inner arc-shaped return air duct (45). The inner arc-shaped inclined portion (42) and the inner arc-shaped skirting board portion (43) are respectively formed on the top and bottom of the inner arc-shaped wall panel (41). The inner arc-shaped air supply duct (44) is disposed on the back side of the upper section of the inner arc-shaped wall panel (41), and the inner arc-shaped air supply duct (44) is... Both ends are connected to the adjacent air supply duct (15). The inner arc-shaped return air duct (45) is set on the back of the lower section of the inner arc-shaped wall panel (41), and both ends of the inner arc-shaped return air duct (45) are connected to the adjacent return air duct (16). The cross-sections of the inner arc-shaped wall panel (41), the inner arc-shaped inclined part (42), the inner arc-shaped skirting part (43), the inner arc-shaped air supply duct (44), and the inner arc-shaped return air duct (45) are all set to be concave arc-shaped.

6. A prefabricated wall system with integrated ventilation and lighting according to claim 4, characterized in that, The external corner connecting unit (50) includes an outer arc-shaped wall panel (51), an outer arc-shaped inclined portion (52), an outer arc-shaped skirting board portion (53), an outer arc-shaped air supply duct (54), and an outer arc-shaped return air duct. The outer arc-shaped inclined portion (52) and the outer arc-shaped skirting board portion (53) are respectively formed on the top and bottom of the outer arc-shaped wall panel (51). The outer arc-shaped air supply duct (54) is disposed on the back side of the upper section of the outer arc-shaped wall panel (51), and the outer arc-shaped air supply duct (54) The two ends of 54) are respectively connected to the adjacent air supply duct (15). The outer arc-shaped return air duct is set on the back of the lower section of the outer arc-shaped wall panel (51), and the two ends of the outer arc-shaped return air duct are respectively connected to the adjacent return air duct (16). The cross-sections of the outer arc-shaped wall panel (51), the outer arc-shaped inclined part (52), the outer arc-shaped skirting board part (53), the outer arc-shaped air supply duct (54) and the outer arc-shaped return air duct are all set to be outwardly protruding arc shape.

7. A prefabricated wall system with integrated ventilation and lighting according to claim 1, characterized in that: The keel (20) consists of at least two sets of vertical beams and at least two sets of horizontal beams. The at least two sets of horizontal beams pass through the vertical beams and are fixedly connected to each other. The horizontal beams are connected to the wall panel (11). The air supply duct (15) and the air return duct (16) are both connected to the vertical beams.

8. A prefabricated wall system with integrated ventilation and lighting according to any one of claims 1-7, characterized in that: The gap between the wall panel (11) and the keel (20) is filled with thermal insulation and sound insulation cotton.

9. A prefabricated wall system with integrated ventilation and lighting according to any one of claims 1-7, characterized in that: A wall heating system is installed on some of the wall panels (11).

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