Technical field

The invention relates to a building board system for implementing, for example, furniture and/or parts of buildings and/or vehicles and/or ships and/or other products or structures. For example, the furniture may be furniture used in offices, apartments, hospitals, schools, production lines, assembly lines, and/or restaurants, and/or short-term furniture implementations, for ex- ample, at trade fair. Said parts of the buildings may be, for example, walls, ceil- ings, and/or floors.

Prior art

In the prior art, building board systems include boards made of, for example, gypsum, plywood, particle board and/or wood, which may be coated with, for example, various laminate, vinyl, metal, paper, paperboard or spray coatings. Said combinations of construction material and coating material are installed to provide the desired structure. Generally in prior art, electrical de- vices and furniture are installed at the desired location in the furniture or ob- jects in the operating environment with traditional screw connections, as a sur- face-mounted or flush-mounted housings. Cable installations complicate con- vertibility, i.e. design freedom that adds value in electrical design.

It is almost impossible to embed electrical wires in a panel-like structural board, so the cables remain visible. The cables are visually messy and make cleaning and interior design difficult. The installation of electrical fur- niture and devices on the edge of the structural board is challenging with tradi- tional methods due to the installation of the cable and the space required by the connecting wires.

In the traditional electrical installation method, where the electrical device or furniture is flush-mounted, the structure of the installation accesso- ries required does not take into account sound insulation and/or air leakage. Therefore, applications such as wall or ceiling structures have to be retrofitted.

The state-of-the-art space elements are similar in structure to a conventional partition wall consisting of, for example, a frame made of wood or sheet metal, on the surface of which said panels are fixedly mounted and the space between the frames is filled with, for example, insulation wool or other insulating material. Disadvantages of said structure are, for example, the sound bridges caused by the solid and hard frame material between the sur- face boards. Another disadvantage is the lack of weak coupling, which means a flexible coupling between said materials and/or a structure, wherein the sound-conducting materials are not in direct contact between the outer surfac- es and which prevents sound from conducting along hard surfaces. One of the essential causes of a cold bridge is, for example, metal frames that conduct heat well.

Publication FI20145752 describes a system consisting of modular furniture elements that can be modified and has an integrated electrical net- work. Said publication focuses on molded furniture parts, which are laborious and complicated to manufacture. In the case of electrically conductive struc- tures, said publication focuses on structures other than sheet metal, which limit the possibility of free connection of electrical devices to different surfaces of the structure. Said publication does not address the need for an electrified structural board to operate independently without other structural boards at- tached thereto. Said publication does not take a position on a layered struc- ture, which is a preferred embodiment for furniture and building board. This publication does not take a position and does not focus on solving the problem of technical challenges relevant to sound insulation and thermal insulation, for example. Said publication does not take a position on the installation/attaching of a structural board to an external structure which is not part of it, which is, for example, a wooden frame structure.

Publication FI20165157 describes the connection of electrical de- vice and furniture to the surface of a modular furniture part with electrically conductive attaching means, but does not focus and solve any technical instal- lation problems with which the electrical coupling and mechanical connection between the structural boards can be implemented in an electrically safe and installation-friendly manner, for example in the case where the attaching and coupling components cannot be installed inside the structural board during in- stallation. Publication FI201665157 does not take a position on connecting an electrical device to the conductor layer. FI201665157 considers only connec- tion to the modular furniture part. FI201665157 does not take a position on the order and electrical safety of the conductor plates and does not focus on solv- ing electrical safety challenges. Summary of the invention

The invention relates to a new type of building board system which includes:

- an electrical device,

- a structural board,

- a power supply, and

- attaching means for attaching the electrical device to the structural board.

Said structural board is a layered board structure provided with at least two conductor layers and at least one layer of insulation material, and at least two attaching means arranged to attach the electrical device to the struc- tural board and electrically connect to said at least two conductor layers, and at least one power supply arranged to supply electricity to the conductor layers of the structural board.

The building board system according to the invention can be used, for example, for the implementation of furniture and/or parts of buildings. Said furniture may be, for example, furniture used in offices, apartments, hospitals, schools, production lines, assembly lines, and/or restaurants, and/or short-term furniture implementations, for example at trade fairs, or modifiable interior de- signs. Said parts of the buildings may be, for example, furniture, walls, ceilings, and/or floors.

The advantage of the building board system according to the inven- tion is that due to its layered structure the electrical device can be freely in- stalled in said system in places defined by its surface area. The advantage of the building board system according to the invention is that the electrical de- vice can be electrically safely connected to said system due to the arrange- ment of the conductor layers according to the invention. Another advantage is that conventional objects, such as paintings, mounted on the surface of the building board system are attached, for example, with screws or nails, whereby said installation procedure according to the invention does not pose a risk of electric shock to its users. Another advantage is that the manufacturing and installation costs of a building board system can be lower than in the case where the structural boards and/or elements are manufactured by traditional methods, when the cost comparison takes into account the electrical installa- tion work as well as the accessories. Another advantage is that fixed cable in- stallations can be eliminated, for example, from installations of convertible fur- niture and/or various structures, which makes it possible to implement a flexi- ble operating model without disturbing fixed cable installations. Another ad- vantage is that a conventional plate wall with, for example, a frame, insulation, surface boards and fixed cable installations can be replaced by a space ele- ment system according to the invention. Another advantage is that a conven- tional building board, such as gypsum board, can be replaced by a building board system according to the invention. Another advantage is that the build- ing board system and the space element system can be implemented accord- ing to the requirements of the structures, which are, for example, sound insula- tion, fire insulation, moisture insulation and the transmission of wireless data transmission.

The various exemplary embodiments of the invention are character- ized by what is set forth in the dependent claims.

Brief description of the drawings

Figure 1 is an exemplary embodiment of the invention showing a building board system,

Figure 2 is an exemplary embodiment of the invention showing a building board system with insulation materials removed from the structural board,

Figure 3 is an exemplary embodiment of the invention, wherein the structural board is cut at the attachment insulation means, and further shows an exemplary embodiment of the attachment insulation means,

Fig. 4 is an exemplary embodiment of the invention, wherein the conductor layer is partially cut and the internal structure of the structural board is illustrated,

Figure 5 is an exemplary embodiment of the invention, wherein an element structure obtained from structural boards is illustrated,

Figure 6 is an exemplary embodiment of the invention, wherein a weak coupling essential for a sound-insulated structure is illustrated,

Fig. 7 is an exploded view illustrating an exemplary embodiment of the invention, wherein the structure can be disassembled and assembled, Fig. 8 is a sectional view illustrating an exemplary embodiment of the invention, wherein the structural boards are attached to each other, and showing various forms of electrical and mechanical connection,

Figure 9 is an exemplary embodiment of the invention, wherein the structural boards are connected to each other and attached to the frame struc- ture,

Figure 10 is an exemplary embodiment of the invention illustrating the connection of elements to each other,

Figure 11 is an exemplary embodiment of the invention illustrating the connection of the elements to each other via a mounting means,

Fig. 12 is an exemplary embodiment of the invention, wherein the connection of the elements to each other and their attachment to the frame structure via an anchor fitting is illustrated.

Description of the figure numbering

101 Electrical device which may also be electrical furniture, other electrically operating and/or electrically conductive device. May also mean power supply means.

102 Structural board that is part of a building board system and can operate independently in a building board system. May act as part of a building and space element 119.

103 Power supply means that supplies electricity to a building board system, structural board, or element. It can also work to extract electricity from said structures. A cable and its wires can be connected to the power supply. May include a strain relief slot.

104 Attachment means whose function is to connect electrically and attach mechanically.

105 Conductor layer whose function is to carry electricity and strengthen a structure. The surface area of the conductor layer defines the lo- cations for connecting the electrical device 101 to the surface of the structural board 102, for example.

106 Insulation material layer whose function is to insulate the con- ductor layers 105 from each other, and/or provide the structural board 102 with a property, such as sound or fire insulation. 107 External attachment means, such as a screw or nail.

108 Protective earth conductor layer.

109 Live conductor layer.

110 Opening for wireless communication.

111 Antenna.

112 Fold which may be a shape edged in sheet metal or otherwise obtained, for example, by casting.

113 Attachment screw.

114 Attachment insulation means by which the conductor layers 105 are attached and whose function is to insulate the conductor layers 105 from each other.

115 First assembly.

116 Second assembly.

117 Groove.

118 Coupling means.

119 Element, which may be, for example, a space or building ele- ment 119.

120 Penetration barrier material.

121 Coupling component which is, for example, plate-like.

122 Coupling screw, whose function is to attach mechanically and connect electrically.

123 Insulation opening into which the insulation means is installed. Also acts as an electrical insulator between the conductor layer 105 and the attachment means 104.

124 Insulation means, whose function is to act as an electrical insu- lator between the conductor layer 105 and the attachment means 104. In- stalled in the insulation opening 123.

125 Coupling screw mounting hole.

126 Insulation plug.

127 Seam strip.

128 Electrical cable.

129 Electrical wiring.

130 Frame structure. 131 Stiffening component.

132 Insulation component.

133 Insulation material.

134 Plate conductors acting as an electrical conductor between the conductor layers 105 of the elements 119.

135 Conductor component.

136 Installation means.

137 Anchor fitting.

Description of the exemplary embodiments

Figure 1 shows an exemplary embodiment of the invention, wherein a structural board 102 is a layered board structure having at least two conduc- tor layers 105 and at least one insulation material layer 106, and at least two attachment means 104 for attaching an electrical device 101 to the structural board 102 and electrically coupling to said at least two conductor layers 105, and at least one power supply means 103 arranged to supply power to the conductor layers 105 of the structural board 102.

In some exemplary embodiments of the invention, electricity is sup- plied to said conductor layers of the structural board 102 via a power supply means 103. Electrical wiring 129 of the electrical cable 128 are connected to said power supply means.

In some exemplary embodiments of the invention, said layered board structure is provided such that at least two conductor layers 105 and at least one insulation material layer 106 are attached to each other by gluing.

In some exemplary embodiments of the invention, said layers ar- ranged within said layered board structure have the same external dimensions.

In some exemplary embodiments of the invention, insulation materi- al layer 106 is provided on at least one outer surface of said structural board 102 parallel to its thickness, whose function is to cover the conductor layer 105.

In some exemplary embodiments of the invention, the power supply means 103 is mounted on the edge of the structural board 102. In some exemplary embodiments of the invention, the power supply means 103 is mounted on the surface of the structural board 102 parallel to its thickness.

In some exemplary embodiments of the invention, the electrical de- vice 101 is mounted on the edge of the structural board 102.

In some exemplary embodiments of the invention, the electrical de- vice 101 is mounted on the surface of the structural board 102 parallel to its thickness.

In some exemplary embodiments of the invention, the electrical de- vice 101 is flush-mounted to the structural board 102.

In some exemplary embodiments of the invention, the conductor layer 105 is made of a sheet metal having a thickness of, for example, 0.1 mm to 4 mm.

In some exemplary embodiments of the invention, the conductor layer 105 is made of, for example, carbon fiber.

Figure 2 shows an exemplary embodiment of the invention, wherein at least three conductor layers 105 are provided in the structural board 102 and the protective earth of the power supply means 103 is connected to at least one of the outer conductor layers 105.

In some exemplary embodiments of the invention, the live conductor layers 109 are disposed behind the earthed conductor layer 108 relative to the thickness of the structural board 102 as viewed from its surface. When the ex- ternal attachment means 107 penetrates the structural board 102, said at- tachment means first penetrates the earthed conductor layer 108 and then said attachment means impinges on the live conductor layer 109. As a result of said collision, a short circuit is formed between the earthed conductor layer 108 and the live conductor layer 109 via the external attachment means 107. This short circuit triggers, for example, a circuit breaker or a residual current device.

In some exemplary embodiments of the invention, the building board system with DC voltage includes 2-3 conductor layers.

In some exemplary embodiments of the invention, the building board system with at least 100-250V AC voltage includes 2-4 conductor layers.

In some exemplary embodiments of the invention, the building board system with at least 3-phase AC voltage includes 5-6 conductor layers. In some exemplary embodiments of the invention, the building board system with at least 100-250V AC voltage includes 2-4 conductor layers.

Figure 2 shows an exemplary embodiment of the invention, wherein an opening for wireless communication 110 is provided in the conductor layers 105 of the structural board 102.

In some exemplary embodiments of the invention, the building board system may include one or more structural boards 102 whose material do not interfere with the wireless communication, said structural board being a conventional building board replacing the electrically conductive building board 102 of the invention.

Figure 2 shows an exemplary embodiment of the invention, wherein an antenna 111 is provided in the opening for wireless communication 110, which wirelessly transmits a signal in the direction of said opening in the struc- tural board 102.

In some exemplary embodiments of the invention, the antenna 111 includes means for receiving a wirelessly transmitted signal and transmitting the wireless signal.

In some exemplary embodiments of the invention, the antenna 111 includes means for receiving a wirelessly transmitted signal and adapting the wireless signal to a wired format.

In some exemplary embodiments of the invention, the antenna 111 includes means for receiving a wirelessly transmitted signal, amplifying the signal, and transmitting the wireless signal.

In some exemplary embodiments of the invention, the antenna 111 includes means for receiving, amplifying, and converting the wirelessly trans- mitted signal to a wired format.

In some exemplary embodiments of the invention, the antenna 111 is electrically operated.

In some exemplary embodiments of the invention, the antenna 111 is integrated within the structural board 102 and receives its operating voltage from the conductor layers 105 to which it is connected.

In some exemplary embodiments of the invention, the antenna 111 is mounted at an opening formed in the surface of the structural board 102.

Figure 2 shows an exemplary embodiment of the invention, wherein an insulation component 132 is provided on at least one edge surface of the structural board 102 to cover the edge surfaces of the conductor layers 105 on the edge surface of the structural board 102.

In some exemplary embodiments of the invention, a material layer is provided on the insulation component’s 132 surface disposed against the edge surface of the structural board 102, whose function is to double insulate the insulation component 132.

In some exemplary embodiments of the invention, a material layer is provided in the structure of the insulation component 132, whose function is to prevent the external attachment means, such as a screw or nail, from penetrat- ing through the insulation component. For example, the punching force of the external attachment means must not exceed 500N in the direction of the sur- face, which is achieved either by hitting the nail or by screwing the screw.

Figure 3 shows an exemplary embodiment of the invention, wherein the conductor layers 105 and the insulation material layer 106 of the structural board 102 are attached together by attachment insulation means 1 14 extend- ing through the structural board 102 and arranged to provide electrical insula- tion between the conductor layers 105. The structure of the structural board 102 shown in the figure is cut at the attachment insulation means 1 14.

In some exemplary embodiments of the invention, the attachment insulation means 114 is flexible electrically insulating material that allows the attachment insulation means to provide a weak coupling between the conduc- tor layers 105 that prevents sound conduction between said conductor layers.

In some exemplary embodiments of the invention, a thread is pro- vided at least at one end of the attachment insulation means 1 14 towards the attachment surface of the conductor layer 105.

In some exemplary embodiments of the invention, a collar 130 is provided at at least one end of the attachment insulation means 1 14 against which the conductor layer 105 is attached when the attachment insulation means 1 14 is attached by the attachment screw 113.

Figure 4 shows an exemplary embodiment of the invention, wherein the attachment insulation means disclosed in the invention has been replaced by at least one stiffening component 131 provided with a non-conductive mate- rial, which has a frame-like shape and whose function is to increase the rigidity of the structure. Through the stiffening component 131 , the conductor layers 105 are mechanically attached to each other, and said components and means provide electrical insulation between the conductor layers 105. The space between the conductor layers 105, which is not filled by the stiffening component 131 , can be filled with a non-conductive insulation material.

Fig. 5 shows an exemplary embodiment of the invention having two exemplary assemblies shown in Fig. 3 or 4: a first assembly 115 and a second assembly 116, said assemblies being attached to each other by at least one stiffening component 131 forming a mechanical connection between said as- semblies and an electrical insulation between said conductor layers 105. The exemplary first assembly 115 and second assembly 116 shown in the figure are partially sectioned. In the figure, the arrows indicating the vertical move- ment illustrate the installation direction of said assemblies.

In some exemplary embodiments of the invention, the first assembly 115 and the second assembly 116, which are attached to each other by at least four attachment insulation means 114, provide mechanical connection and electrical insulation between said assemblies.

In some exemplary embodiments of the invention, the assembly is, for example, a building or space element including at least two of said exem- plary assemblies shown in Figure 3 or 4, said assemblies being attached to each other by at least one stiffening component 131 and/or attachment insula- tion means of the invention.

Fig. 6 shows an exemplary embodiment of the invention, wherein the attachment insulation means 114 of the first assembly 115 and the second assembly 116 are in different locations as the other stiffening components 131 when viewed parallel to the thickness of the structural board, attaching the first and second assemblies together. Said arrangement provides a weak coupling between said assemblies.

In some exemplary embodiments of the invention, the attachment insulation means 114 of the first assembly 115 and the second assembly 116 are in different locations as the attachment insulation means of the invention when viewed parallel to the thickness of the structural board, attaching said assemblies together. Said arrangement provides a weak coupling between said assemblies.

In some exemplary embodiments of the invention, the stiffening component 131 is provided at the same location as the attachment insulation means mentioned in the invention when the structural board is viewed parallel to its thickness. An evading shape is provided on the surface of the stiffening component 131 against the conductor layer 105, which prevents the attach- ment insulation means 114 from being placed in the same position as the stiff- ening component 131 when the structural board is viewed parallel to its thick- ness. Said arrangement provides a weak coupling between said assemblies.

Figure 7 shows an exemplary embodiment of the invention, wherein the assembly of the structural board can be disassembled, assembled and the materials inside the structural board exchanged without breaking the material. The conductor layers 105 of the structural board are attached to each other by means of attachment insulation means 114 and/or at least one of the stiffening components shown so that said conductor layers are not electrically connected to each other. An insulation material layer 106 is mounted between the con- ductor layers 105. The figure shows an exploded view of the assembly, where- in the insulation material layer 106 is cut at one of the attachment insulation means 114.

In some exemplary embodiments of the invention, the conductor layers 105 are attached to the attachment insulation means 114 and/or to at least one stiffening component of the invention via attachment screws 113.

In some exemplary embodiments of the invention, the materials of the structural board assembly may be interchanged to achieve desired proper- ties. Desired properties include sound insulation, fire insulation, thermal insula- tion and moisture insulation.

In some exemplary embodiments of the invention, a magnetically adhesive surface material, such as a laminate, vinyl, wood, or plywood board, is mounted on the surface of the structural board parallel to its thickness.

Figure 8 shows an exemplary embodiment of the invention, wherein at least two structural boards 102 are electrically connected to each other and said structural boards are mechanically attached to the frame structure 130 via coupling screws 122. The seam strip 127, the structural boards 102 and one of the coupling components 121 shown in the figure are cut at the central axis of the coupling screws 122.

In some exemplary embodiments of the invention, at least two cou- pling components 121 are provided at the junction of the structural boards 102, and each of said coupling components 121 is attached via at least two cou- pling screws 122 through the structural boards 102 to one conductor layer 105 and the frame structure 130 of each structural board 102, forming electrical contact between the conductor layers 105 of the structural boards 102, and at the same time said structural boards are attached mechanically into the frame structure 130.

In some exemplary embodiments of the invention, the coupling components 121 are provided at the junction of the structural boards 102 be- tween the frame structure 130 and the structural boards 102.

In some exemplary embodiments of the invention, the coupling components 121 are disposed on the surface of the structural boards 102 away from the frame structure 130.

In some exemplary embodiments of the invention, a seam strip 127 is provided on the surface of the structural board 102, whose function is to cover the coupling components 121 and the coupling screws 122.

In some exemplary embodiments of the invention, a groove is longi- tudinally provided on the attaching surface of the seam strip 127, within which the coupling components 121 and the coupling screws 122 are covered under the seam strip 127.

In some exemplary embodiments of the invention, the structural boards 102 can be connected to each other on at least two edges.

In some exemplary embodiments of the invention, for example, a wall is formed from at least four structural boards 102. At least one of said building boards may be replaced, for example, by gypsum board. Said exem- plary embodiment is suitable, for example, when the connection of an electrical device is not desired to said part of the structural board to be replaced. Or said exemplary embodiment is suitable, for example, when providing an opening with the size of said structural board for wireless data transmission.

Fig. 9 shows an exemplary embodiment of the invention according to Fig. 8, wherein the at least one conductor layer 105 and/or the insulation material layer 106 is provided with an insulation opening 123, whose function is to prevent transfer of electricity from the conductor layer 105 to the coupling screw 122.

In some exemplary embodiments of the invention, an insulation means 124 is mounted in the insulation opening 123, whose function is to pre- vent the transfer of electricity from the conductor layer 105 to the coupling screw 122. In some exemplary embodiments of the invention, a coupling screw mounting hole 125, larger than the diameter of the head of the coupling screw 122, is provided on the structural board 102 for mounting the coupling screw 122, and where an insulation plug 126 covering the head of the electrically conductive coupling screw 122 is installed after installing said coupling screw.

In some exemplary embodiments of the invention, a penetration bar- rier material 120 may be formed at the end of the insulation plug 126 as viewed from its mounting direction to prevent an external attachment means, such as a screw or nail, from penetrating through it to the coupling screw 122. The punching force of said external attachment means must not exceed, for example, 500N parallel to the surface, which is achieved either by hitting the nail or by screwing the screw.

In some exemplary embodiments of the invention, during the indus- trial manufacturing process at least two insulation openings 123 are provided in the conductor layers 105 of the structural board 102 and the locations of the insulation openings are industrially marked on the surface of said structural board, and said marking allows easy and quick installation without measure- ment and/or a separate tool.

In some exemplary embodiments of the invention, the outer surface of the structural board 102 of the building board system is flattened and paint- ed during installation.

Figure 10 shows an exemplary embodiment of the invention, where- in an element 119, such as a building element or a space element, is provided from at least two structural boards 102. Said elements are, for example, fire- insulated, sound-insulated, moisture-insulated and heat-insulated, or have some combination of said properties.

In some exemplary embodiments of the invention, the element 1 19 includes at least three conductor layers 105, as a result of which the first of the two structural boards 102 of said element includes two conductor layers 105 and the second non-first structural board includes one conductor layer 105.

In some exemplary embodiments of the invention, the elements 1 19 are mountable to each other on at least two edges that form an electrical con- tact and a mechanical attachment between the elements 1 19.

In some exemplary embodiments of the invention, the at least one conductor layer 105 provided within the element 119 is folded 112 from at least one edge to at least partially cover the edge surface of the insulation material layer 106 adjacent said conductor layer 105. The fold of said conductor layer forms an electrical connection between the conductor layers 105 when said elements are provided in a butt joint against each other.

In some exemplary embodiments of the invention, at least one edge of the element is provided with a groove 117 having two opposite inner surfac- es formed from conductor layers 105. Said groove can be provided with a cou- pling means 1 18 including an insulation material 133 and plate conductors 134 attached thereto to two opposite surfaces and connected to said plate conduc- tors.

In some exemplary embodiments of the invention, at least one edge of the element is provided with a key located at a groove 1 17, the two opposite inner surfaces of which are formed from conductor layers 105 whose length has been increased to form a key. The length of the insulation material layer has also been increased at the key between said conductor layers.

In some exemplary embodiments of the invention, the insulation ma- terial 133 of the coupling means 1 18 is a resilient material, such as groats, which due to its resilient property, presses the plate conductors 134 against the conductor layers 105 in the groove 117. The flexible insulation material 133 may be thicker with respect to said compression direction than the distance between the conductor layers 105 of said groove.

In some exemplary embodiments of the invention, the elements 1 19 are in a butt joint. Through the at least one coupling component 121 and the coupling screws 122, the elements 1 19 are mechanically attached to each oth- er and the at least one conductor layers 105 of the elements 1 19 are electrical- ly connected to each other.

In some exemplary embodiments of the invention, the element with DC voltage includes 2-3 conductor layers.

In some exemplary embodiments of the invention, the element with 100-250V AC voltage includes 2-4 conductor layers.

In some exemplary embodiments of the invention, the element with 3-phase AC voltage includes 5-6 conductor layers.

In some exemplary embodiments of the invention, the element in- cludes at least one conductor layer for the uninterruptible power system. Fig. 1 1 shows an exemplary embodiment of the invention, wherein at least two structural boards 102 are connectable to each other via an installa- tion means 136 having at least two conductor components 135 provided. Said conductor components press into the insulation material layers 106 of the structural board 102, and each of said conductor components is electrically connected to the second conductive layer 105 of each said structural board and make electrical contact between said structural boards. In the figure, the arrow indicates the installation direction of the structural board to the installa- tion means 136.

In some exemplary embodiments of the invention, the function of the installation means 136 is to insulate the structural boards 102, for example, from the floor surface against which the installation means is positioned.

In some exemplary embodiments of the invention, the installation means 136 is provided from a flexible material.

In some exemplary embodiments of the invention, the installation means 136 is provided from a non-conductive material.

In some exemplary embodiments of the invention, the installation means 136 is mounted against a structural board, floor, wall, or ceiling surface.

Figure 12 shows an exemplary embodiment of the invention, where- in at least two structural boards 102 are electrically and mechanically connect- ed to each other by an anchor fitting 137. Said anchor fitting attaches the struc- tural boards 102 to the frame structure 130. At least one insulation opening 123 is provided in the at least one plate conductor of the frame structure 130 to prevent transfer of electricity from the anchor fitting 137 to the conductor layer 105. At least one anchor fitting 137 penetrates a conductor layer, as a result of which electricity is connected between said structural boards via the anchor fitting 137.

In some exemplary embodiments of the invention, the conductor layer 105 is a soft electrically conductive material, such as aluminum, which can be penetrated by an anchor fitting 137.

In some exemplary embodiments of the invention, the anchor fitting 137 is riveted within the surface plane of the structural board 102 and is smoothed with, for example, mortar.

In some exemplary embodiments of the invention, during the indus- trial manufacturing process at least two insulation openings 123 are provided in the conductor layers 105 of the structural board 102 and the locations of the insulation openings are industrially marked on the surface of said structural board, and said marking allows easy and quick installation without measure- ment and/or a separate tool.