THERMALLY INSULATING CONNECTING ELEMENT AND THERMALLY INSULATING COMPONENT

Description

[0001] The invention relates to a thermally insulating component of the type specified in the preamble of claim 1.

[0002] WO 2017 / 121658 A1 discloses a thermally insulating component comprising several connecting elements, namely tension rods. Some of the connecting elements are made of a non-metallic material, such as resin, into which basalt fibers are embedded. The other part of the tension rods is made of steel.

[0003] WO 2005 / 035892 A1 also discloses screwing a connecting element made of glass-fiber-reinforced plastic into steel nuts that extend through the joint. This increases the mechanical load capacity. However, the use of steel nuts simultaneously reduces the insulating effect.

[0004] DE 10 2016 113 558 A1 discloses a structural element for thermal insulation whose tensile reinforcement elements are designed as multi-part composite elements. The tensile reinforcement elements comprise a central section, which can be made of fiber-reinforced plastic, and anchoring sections connected to the central section, which are made of reinforcing steel and are firmly connected to the central section.

[0005] US 2016 / 002920 A1 discloses pressure transmission elements whose cross-sectional shape deviates from the circular shape and which can be made of different materials.

[0006] EP 0 568 813 A1 discloses a thermal insulation component with reinforcing bars provided with a corrosion-protective coating. Additionally, abrasion protection is provided.

[0007] The subsequently published EP 3 656 938 B1 discloses a structural element for the low-thermal-bridge connection of a projecting exterior part to a building envelope, comprising a one-piece reinforcement element made of fiber-reinforced plastic. The reinforcement element has an anchoring section with a surface profile on its outer surface. The surface profile can be formed by ribs.

[0008] The object of the invention is to provide a thermally insulating component that can transmit high forces and has a good insulating effect.

[0009] Thermally insulating fasteners, particularly thermally insulating fasteners for thermally insulating building elements, typically have anchoring sections that extend into the supported structure and the load-bearing structure, for example, into a balcony slab and a building ceiling, and that are cast into the surrounding concrete. Such fasteners typically have a central section that bridges a joint between the supported structure and the load-bearing structure. It has now been shown that in the connecting sections, the surrounding concrete plays a significant role in the load-bearing effect. Only in the central section does the fastener alone have to absorb all the forces that occur.

[0010] For a thermally insulating component for use in a separating joint between a supported structure and a supporting structure, in particular between a balcony slab and a building ceiling, with an insulating body, wherein the insulating body has a longitudinal direction and longitudinally extending, opposite longitudinal sides, it is provided that at least one connecting element extends through the insulating body.

[0011] For the connecting element made of fiber-reinforced material, in which at least a partial cross-section extends in one piece and continuously through the first connecting section, the middle section and the second connecting section, it is provided that the stiffness of the connecting element is greater in the middle section than in the connecting sections.

[0012] In contrast to the prior art, the present invention therefore does not propose combining the connecting element made of fiber-reinforced material with steel connecting elements or with surrounding reinforcing elements such as nuts or the like made of steel, but rather constructing the connecting element itself from fiber-reinforced material with greater rigidity in the central section. Because the rigidity of the thermally insulating connecting element is increased only in the central section, the additional amount of fiber-reinforced material required is comparatively small, so that the connecting element can be manufactured comparatively inexpensively. Because the connecting element is made entirely of fiber-reinforced material, a very good insulating effect can be achieved while simultaneously transmitting high forces.

[0013] The stiffness of the central sections is preferably at least 110%, in particular at least 130%, and preferably at least 150% of the stiffness of each connecting section. The stiffness of the two connecting sections is preferably the same. However, it is also possible to provide two connecting sections with different stiffnesses.

[0014] The partial cross-section, which extends in one piece and continuously through the two connecting sections and the central section, preferably forms at least 30%, in particular at least 50%, of the cross-section of the connecting element in at least one connecting section, in particular in both connecting sections. The partial cross-section forms a continuous bar through the connecting sections and the central section, which is uninterrupted. For example, the connecting element in the partial cross-section is not made from multiple sections connected to one another in the longitudinal direction of the connecting element. As a result, the fiber reinforcement in the partial cross-section extends continuously through both connecting sections and the central section. This achieves high rigidity.

[0015] A simple design results from the connecting element having at least one base element and at least one reinforcing element connected to the base element, wherein the at least one base element extends continuously through the connecting sections and the central section and forms at least part of the partial cross-section, and wherein the at least one reinforcing element is arranged in the central section and does not extend into the connecting sections. Because the connecting element is constructed from a base element and a reinforcing element, the desired stiffness properties and insulating properties can be easily achieved by matching the cross-sections of the base element and the reinforcing element.To coordinate the stiffness and / or insulating properties of the connecting element and to achieve other desired properties, the at least one base element and the at least one reinforcing element can consist of the same fiber-reinforced material or of different fiber-reinforced materials. The at least one reinforcing element can preferably be fixed to the at least one base element in a material-to-material or mechanical manner. For the material-to-material connection, the reinforcing element can, for example, be glued to the base element or connected to the base element by a welding process, for example by ultrasonic welding. A latching mechanism is provided in particular as a mechanical fastening. However, fastening via one or more separate fastening elements can also be advantageous. Other types of connection between the reinforcing element and the base element can also be advantageous.

[0016] Advantageously, the connecting element is manufactured using a pultrusion process. In a connecting element consisting of a base element and a reinforcement element, all base elements and all reinforcement elements are preferably manufactured using a single pultrusion process.

[0017] The connecting element preferably has a profile on its outer side in at least one connecting section. The profile can be designed in a variety of geometric shapes and improves the anchoring of the at least one connecting section in the surrounding concrete. A profile can also be provided on the connecting element in the central section. This is particularly advantageous when the connecting element is arranged in a thermally insulating component and the central section protrudes from the insulating body of the thermally insulating component when installed.

[0018] To adapt to desired properties, the central section can be made at least partially of a different material than the connecting sections. For this purpose, the reinforcing element, in particular, can be made of a different material than the base element. However, it can also be provided to provide a one-piece connecting element that consists of different materials in the connecting sections and the central section. A base element that consists of different materials in the connecting sections and the central section can also be advantageous. In particular, different fiber reinforcements or different base materials in which the fibers are embedded can be provided in the individual sections.

[0019] Advantageously, the central section consists at least partially of a material that has a higher fire resistance than the material of at least one connecting section. The central section advantageously consists at least partially of a castable or sprayable material. The central section advantageously consists at least partially of a mineral material, in particular of high-strength concrete or mortar or ultra-high-strength concrete or mortar. Preferably, the central section consists at least partially of a material that has a lower thermal conductivity than the material of at least one connecting section.

[0020] The base material of the fiber-reinforced material, into which the fibers are embedded, can be a plastic or a mineral material. Preferably, the fiber-reinforced material comprises glass fibers and / or basalt fibers and / or carbon fibers and / or aramid fibers as fiber reinforcement. Fibers made of other materials can also be advantageous for fiber reinforcement.

[0021] Advantageously, at least one connecting section is connected to the central section via a transition section, with the cross-section of the connecting element in the transition section continuously increasing from the connecting section to the central section. This prevents a notch effect at the transition between the connecting section and the central section. The transition section can have a straight or curved, for example, convex or concave outer contour.

[0022] The central section protrudes from the insulating body on at least one long side, in particular on both long sides of the insulating body.

[0023] Embodiments of the invention are explained below with reference to the drawings. They show: Fig. 1 a schematic representation of a thermally insulating component in a parting line, Fig. 2 a partial schematic perspective representation of a thermally insulating component, Fig. 3 a view of the front side of a connecting element of the thermally insulating component according to Fig. 2 , Fig. 4 a schematic perspective view of the arrangement of Fig. 2 , Fig. 5 a partial schematic perspective view of a non-inventive embodiment of a thermally insulating component, Fig. 6 a perspective view of the connecting element from Fig. 5 , Fig. 7 a view of the front side of the connecting element from Fig. 6, Fig. 8 a view of the front side of an alternative design of the connecting element from Fig. 6 , Fig. 9 a perspective view of an alternative connecting element, Fig. 10 a view of the front side of the connecting element from Fig. 9 , Fig. 11 a perspective view of the connecting element from Fig. 9 , Fig. 12 a perspective view of a further embodiment of a connecting element, Fig. 13 a view of the front side of the connecting element from Fig. 12 , Fig. 14 a perspective view of the connecting element from Fig. 12 , Fig. 15 and 16perspective views of a further embodiment of a connecting element, Fig. 17a view of the front side of the connecting element from the Figures 15 and 16 , Fig. 18 a variant of the reinforcing element of the connecting element from the Figures 15 to 17, Fig. 19 and 20 schematic representations of design variants for the transition section between the connecting section and the middle section.

[0024] Fig. 1shows a perspective, schematic representation of a thermally insulating component 1 which is intended for use in a separating joint 4 between a supported structure and a supporting structure, in the exemplary embodiment between a schematically represented balcony slab 2 and a schematically represented building ceiling 3. The thermally insulating component 1 comprises an insulating body 5 which is filled with insulating material. The insulating body 5 is designed as an elongated box and has a longitudinal direction 6 which extends in the longitudinal direction of the separating joint 4 and, in the installed state, in the horizontal direction, and a transverse direction 7 which, in the installed state, extends in the horizontal direction from the balcony slab 2 to the building ceiling 3 and perpendicular to the longitudinal direction 6. The insulating body 5 also has a vertical direction 8 which, in the installed state, is vertically oriented and runs perpendicular to the longitudinal direction 6 and perpendicular to the transverse direction 7.

[0025] The insulating body 5 has opposite longitudinal sides 9 and 10, which run approximately parallel to the longitudinal direction 6 and the vertical direction 8. For the transmission of forces between the balcony slab 2 and the building ceiling 3, connecting elements 13, 14, 15 are provided, which protrude from the insulating body 5 into the balcony slab 2 and the building ceiling 3 on opposite longitudinal sides 9 and 10 of the insulating body 5.

[0026] The connecting elements 13 in the exemplary embodiment are designed as tension rods and, when installed, are arranged in the upper region of the insulating body 5. The connecting elements 14 in the exemplary embodiment are compression rods arranged in the lower region of the insulating body 5. The connecting elements 15 are shear force rods that run in the upper region of the building ceiling 3 and in the lower region of the balcony slab 2, or in the upper region of the balcony slab 2 and in the lower region of the building ceiling 3. To absorb compressive forces, thrust bearings 16 and compression-shear bearings 17 are also provided. The type, arrangement, and design of the connecting elements 13, 14, 15, the thrust bearings 16, and the compression-shear bearings 17 must be adapted to the application of the thermally insulating component 1 and selected according to requirements. Individual types of connecting elements can therefore be omitted, or additional types of connecting elements can be provided.

[0027] In order to achieve a good insulation effect by the thermally insulating component 1, the invention provides that Fig. 1 The connecting elements 13, 14 and / or 15, which are only shown schematically, are made of fiber-reinforced material. Because the connecting elements 13, 14 and / or 15 are neither partially nor completely made of metal, a very good insulating effect can be achieved. The fiber-reinforced material can comprise glass fibers and / or basalt fibers and / or carbon fibers and / or aramid fibers and / or steel fibers. The base material in which the reinforcing fibers are embedded is not made of metal. As a result, embedded fibers, in particular steel fibers, are thermally separated from one another via the base material, and a good insulating effect is achieved even when steel fibers are used.

[0028] Fig. 2shows schematically the arrangement of a connecting element 13 in an insulating body 5. The insulating body 5 is shown only in detail and can be arranged in the longitudinal direction 6 and in the vertical direction 8 ( Fig. 1 ) have a significantly greater extension. The arrangement of the connecting element 13 in the vertical direction 8 must be selected according to the application.

[0029] The connecting element 13 is in the embodiment according to Fig. 2constructed from a base element 26 and a reinforcing element 27 held on the base element 26. The base element 26 has a length l 1 , which in the exemplary embodiment corresponds to the total length of the connecting element 13. The reinforcing element 27 has a length l 2 , which is less than the length l 1 . In the exemplary embodiment, the base element 26 protrudes at both ends of the reinforcing element 27. The sections of the base element 26 that protrude beyond the reinforcing element 27 form connecting sections 21 and 23, at which the connecting element 13 is surrounded and embedded in the surrounding concrete of the balcony slab 2 and the building ceilings 3. The area in between, in which both the base element 26 and the reinforcing element 27 extend, forms a central section 22 that protrudes through the insulating body 5.In the exemplary embodiment, the length l 2 of the reinforcing element 27 is greater than the extension of the insulating body 5 in the transverse direction 7, so that the central section 22 protrudes from the insulating body 5 on both longitudinal sides 9 and 10 of the insulating body 5.

[0030] How Fig. 2 shows, the connecting sections 21 and 23 each have a length l 3 . The length l 3 corresponds to at least 5 times the Fig. 3 shown largest diameter d of the respective connecting section 21, 23. Preferably, the length l 3 is at least as large as the length l 2 , in particular greater than the length l 2 , so that a good anchoring of the connecting element 13, 14, 15 in the surrounding concrete results.

[0031] Because the reinforcing element 27 is arranged in the central section 22 and firmly connected to the base element 26, an increased rigidity of the connecting element 13 results in the central section 22. Advantageously, the rigidity in the central section 22 is at least 110%, in particular at least 130%, preferably at least 150% of the rigidity of each connecting section 21 and 23.

[0032] How Fig. 2 As shown, the base element 26 can have a profile 28, which can be formed, for example, by grooves milled into the base element 26. In the exemplary embodiment, the grooves run perpendicular to a longitudinal direction 50 of the connecting element 13. However, a helical design of the grooves can also be provided. Another type of profiling that improves anchoring in the surrounding concrete can also be advantageous.

[0033] How Fig. 2As shown, a partial cross-section 25 of the base element 26 extends over the entire length of the connecting element 13, from a first end 18 to a second end 19 of the connecting element 13. In the exemplary embodiment, the ends 18 and 19 are arranged on the connecting sections 21 and 23. If a profile 28 is provided, the partial cross-section 25, which extends over the entire length of the connecting element 13, is reduced by the cross-section of the profile. The partial cross-section 25 is advantageously at least 30%, in particular at least 50%, of the cross-section of the connecting element in at least one, in particular in both, connecting sections 21 and 23.

[0034] Fig. 3shows the design of base element 26 and reinforcing element 27 in detail. When joined together, base element 26 and reinforcing element 27 form an approximately circular cross-section, with the outer circumference of reinforcing element 27 being at a slightly greater distance from a longitudinal center axis 49 of connecting element 13 than base element 26. In the exemplary embodiment, reinforcing element 27 is held mechanically on base element 26, namely via a snap connection. For this purpose, locking lugs 30 are formed on reinforcing element 27, which protrude into corresponding recesses 36 in reinforcing element 27. Base element 26 and reinforcing element 27 are formed with an approximately constant cross-section over their entire length, except for a possibly introduced profile 28. The locking lugs 30 are formed as webs that extend over the entire length of reinforcing element 27.In the exemplary embodiment, the base element 26 is designed with an approximately T- or mushroom-shaped cross-section. The reinforcing element 27 has an approximately C-shaped cross-section, with the ends of the C forming the locking lugs 30. The arrangement of the connecting element 13 on the insulating body 5 is also shown in . Fig. 4 shown. Here it can be seen that the central section 22 protrudes from the insulating body 5 on both long sides 9 and 10 of the insulating body 5.

[0035] Fig. 5shows an alternative arrangement of a non-inventive embodiment of a connecting element 13, in which the central section 22 is arranged entirely within the insulating body 5. Only the connecting sections 21 and 23 protrude from the insulating body 5. The openings through which the connecting element 13 protrudes from the insulating body 5 are sized to match the connecting sections 21 and 23. As a result, the central section 22 holds the connecting element 13 in its position within the insulating body 5. The connecting element 13 cannot be pulled out of the insulating body 5.

[0036] In an alternative embodiment not according to the invention, it can also be provided that the central section 22 ends at the longitudinal sides 9 and 10 of the insulating body 5. The described arrangement variants of the central section 22 with respect to the insulating body 5 are advantageous for all described embodiments of connecting elements 13, 14, 15.

[0037] The Fig. 5 illustrated, non-inventive embodiment and the one in the Figures 6 and 7 The illustrated embodiment of a connecting element 13 comprises a base element 26 and a reinforcing element 27. The base element 26 is designed as a rod with a circular cross-section. However, a different cross-section may also be advantageous. The reinforcing element 27 has an approximately C-shaped cross-section and runs along one longitudinal side of the base element 26. Fig. 7 shows, forms in the embodiment according to the Figures 5 to 7The reinforcing element 27 has no undercut with the base element 26, for example, via locking lugs. To fix the reinforcing element 27 to the base element 26, a material connection, in particular by gluing or by a welding process, preferably by ultrasonic welding, can be provided, for example. However, another type of connection can also be provided. The base element 26 has a diameter d. The reinforcing element 27 has a thickness b that is significantly smaller than the diameter d. The rigidity in the central section is preferably at most 5 times, in particular at most 3 times, the rigidity in the connecting sections 21 and 23.

[0038] Fig. 8 shows a variant of the reinforcing element 27 of the Figures 5 to 7 . The reinforcing element 27 has a thickness b which, relative to the Fig. 8schematically shown diameter d of a base element 26 is larger than in the embodiment according to the Figures 5 to 7 . The thickness b can be, for example, 10% to 30% of the diameter d. As Fig. 8 also shows, the reinforcing element 27 extends over an angle α of more than 180° around the longitudinal central axis 49 on the circumference of the base element 26, so that the reinforcing element 27 forms an undercut with the base element 26 and can be snapped onto the base element 26. Alternatively or additionally, in the embodiment according to Fig. 8 a material-to-material, in particular a chemical, connection must be provided.

[0039] The embodiment according to Figures 9 to 11shows a base element 26 with a rectangular, preferably square diameter, which is surrounded by a reinforcing element 27 on three longitudinal sides in the central section 22. The reinforcing element 27 is also angular on its outer circumference, so that a rectangular cross-section of the connecting element 13 is also obtained in the central section 22. In the exemplary embodiment, the reinforcing element 27 has approximately the same wall thickness on all three longitudinal sides of the base element. Fig. 10 shows, a diameter a of the connecting element 13 in the central section 22 is larger than a diameter d of the base body 26. The diameters a and d are the largest diameters of the respective section. Fig. 10 In the rectangular cross-section shown, the diameters a and d are measured between opposite edges.

[0040] The Figures 12 to 14show an embodiment of a connecting element 13, which has a base element 26 and two reinforcement elements 27 arranged thereon. The reinforcement elements 27 are identical and can, as in the embodiment, for example, be similar to the Figures 7 and 8 The reinforcing element 27 shown may be designed with an approximately C-shaped cross-section. However, a different design of the reinforcing elements 27 may also be advantageous. The base element 26 corresponds in its shape approximately to two bars with a circular cross-section that are connected to one another along one longitudinal side. The largest diameter d of the base element 26 is Fig. 13 shown. The approximately C-shaped reinforcing element 27 is arranged on the two longitudinal sides facing away from the connection point.

[0041] In the example according to the Figures 15 to 17Two basic elements 26 are provided, which are fixed to a common reinforcing element 27. The reinforcing element 27 is approximately H-shaped and has two legs 31, which are connected to each other via a central web 32. As Fig. 17 shows, are in the design variant according to the Figures 15 to 17 The reinforcing element 27 encompasses the base elements 26 at the periphery over less than 180°, so that no positive connection is created. The reinforcing element 27 can be fixed to the base elements 26, for example, via a chemical bond such as adhesive or ultrasonic welding. The largest diameter d of the connecting section 21, 23 corresponds to the distance between the longitudinal sides of the base elements 26 arranged remote from one another. The largest diameter d is the greatest extent of the connecting section 21, 23 perpendicular to the longitudinal direction 50 of the connecting element 13.

[0042] In the embodiment according to Fig. 18 , which is a slightly modified version of the embodiment according to the Figures 15 to 17 , the reinforcing element 27 encompasses each base element 26 over an angle α of more than 180° of its circumference, resulting in a positive connection. In the embodiment according to Fig. 18 The legs 31 are rounded at their ends. A design with edges according to Fig. 17 can be beneficial.

[0043] The Figures 19 and 20 show schematically embodiments for a transition section 29, which extends between a connecting section 21 and the middle section 22. A corresponding transition section 29 is preferably also provided between the middle section 22 and the connecting section 23. In the embodiment according to Fig. 19the transition section 29 is conical, resulting in a continuous increase in diameter from the connecting section 21 to the middle section 22. In the embodiment according to Fig. 20 a curved course of the outer contour in the transition section 29 is provided in the longitudinal direction 50. The outer contour can be convex in section or, as in Fig. 20 indicated by a dashed line, are concave. The transition section 29 can be formed by a further element connected to the base element 26 and the reinforcing element 27 or can be integrally formed on the base element 26 or the reinforcing element 27.

[0044] Advantageous embodiments result from any combination of the described embodiments. In all embodiments, the rigidity in the central section 22 is at least 110%, in particular at least 130%, preferably at least 150% of the rigidity of each connecting section 21, 23. The partial cross-section 25 preferably forms at least 30%, in particular at least 50%, of the cross-section of the connecting element 13, 14, 15 in at least one connecting section 21, 23, in particular in both connecting sections. In all embodiments, in addition to the illustrated profiles 28 in any arrangement, a profile 28 of any design can be provided in one or more further sections.

[0045] For all embodiments, it is provided that the central section 22 consists at least partially of a material that has a higher fire resistance than the material of at least one connecting section 21 and 23. This can be achieved in particular by using a different material for the reinforcing element 27 than that of the base element 26. The central section 22 preferably consists at least partially, in particular entirely, of mineral material, in particular of high-strength or ultra-high-strength concrete or mortar. Advantageously, the reinforcing element 27 consists of concrete or mortar, in particular of high-strength or ultra-high-strength concrete or mortar. The central section 22 preferably consists at least partially of a material that has a lower thermal conductivity than the material of at least one connecting section 21 and 23.

[0046] The connecting element 13, 14, 15 can also be used for other purposes, for example for fixing facade panels or as a reinforcement element for concrete.

Claims

1. Thermally insulating component for use in a joint (4) between a supported structure and a supporting structure, in particular between a balcony slab (2) and a building ceiling (3), comprising an insulating body (5), wherein the insulating body (5) has a longitudinal direction (6) and long sides (9, 10) that extend in the longitudinal direction (6) and are opposite one another, wherein at least one thermally insulating connecting element (13, 14, 15) extends through the insulating body (5), wherein the connecting element (13, 14, 15) is configured to be rod-shaped and comprises a first connecting portion (21), a second connecting portion (23) and a central portion (22) arranged between the connecting portions (21, 23), wherein the length (l3) of each connecting portion (21, 23) corresponds to at least 5 times the largest diameter (d) of said connecting portion (21, 23), wherein the connecting element (13, 14, 15) consists of fibre-reinforced material and wherein at least a partial cross-section (25) of the connecting element (13, 14, 15) extends in one piece and continuously through the first connecting portion (21), the central portion (22) and the second connecting portion (23), wherein the rigidity of the connecting portion (13, 14, 15) in the central portion (22) is greater than in the connecting portions (21, 23), wherein the central portion (22) protrudes out of the insulating body (5) at at least one long side (9, 10) of the insulating body (5), characterised in that the connecting element (13, 14, 15) comprises at least one base element (26) and at least one reinforcing element (27) connected to the base element (26), wherein the at least one base element (26) extends continuously through the connecting portions (21, 23) and the central portion (22) and forms at least a part of the partial cross-section (25), and wherein the at least one reinforcing element (27) is arranged in the central portion (22) and does not extend in the connecting portions (21, 23).

2. Component according to claim 1, characterised in that the rigidity in the central portion (22) is at least 110%, in particular at least 130%, preferably at least 150%, of the rigidity of each connecting portion (21, 23).

3. Component according to either claim 1 or claim 2, characterised in that the partial cross-section (25) forms, in at least one connecting portion (21, 23), in particular in both connecting portions (21, 23), at least 30% of the cross-section of the connecting element (13, 14, 15).

4. Component according to any of claims 1 to 3, characterised in that the at least one base element (26) and the at least one reinforcing element (27) consist of the same fibre-reinforced material.

5. Component according to any of claims 1 to 3, characterised in that the at least one base element (26) and the at least one reinforcing element (27) consist of different fibre-reinforced materials.

6. Component according to any of claims 1 to 5, characterised in that the at least one reinforcing element (27) is fixed integrally or mechanically to the at least one base element (26).

7. Component according to any of claims 1 to 6, characterised in that the connecting element (13, 14, 15) is produced in a pultrusion method.

8. Component according to any of claims 1 to 7, characterised in that the connecting element (13, 14, 15) comprises a profile (28) on its outside, in at least one connecting portion (21, 23).

9. Component according to any of claims 1 to 8, characterised in that the central portion (22) consists at least in part of a material that has greater fire resistance than the material of at least one connecting portion (21, 23).

10. Component according to any of claims 1 to 9, characterised in that the central portion (22) consists at least in part, in particular completely, of mineral material.

11. Component according to any of claims 1 to 10, characterised in that the central portion (22) consists at least in part of a material that has a lower thermal conductivity than the material of at least one connecting portion (21, 23).

12. Component according to any of claims 1 to 11, characterised in that the fibre-reinforced material comprises glass fibres and / or basalt fibres and / or carbon fibres and / or aramid fibres.

13. Component according to any of claims 1 to 12, characterised in that at least one connecting portion (21, 23) is connected to the central portion (22) via a transition portion (29), wherein the cross-section of the connecting element (13, 14, 15) in the transition portion (29) enlarges continuously from the connecting portion (21, 23) to the central portion (22).

14. Component according to any of claims 1 to 13, characterised in that the central portion (22) protrudes out of the insulating body (5) at both long sides (9, 10) of the insulating body (5).