insulating element

Abstract

The invention relates to an insulating element for insulating a structural element in a motor vehicle, comprising a carrier and an expandable material arranged on the carrier. The insulating element has an upper side and a lower side, which in the state of use are oriented substantially in the plane of the cross section of the structural element to be insulated. Furthermore, the insulating element has at least one guide element by means of which the insulating element can be arranged on a rail element such that the rail element is arranged substantially perpendicularly to the upper side or perpendicularly to the lower side.

Description

TECHNICAL FIELD

[0001] The present application relates to an insulation element for insulating a structural element in a motor vehicle. Furthermore, the present application also relates to a system having a plurality of such insulation elements and a carrier, and to a method for mounting such an insulation element on a structural element. BACKGROUND

[0002] In many cases, assemblies, such as vehicle bodies and / or frames of water-borne or land-borne or air-borne vehicles, have cavities in order to achieve a lightweight construction. However, these cavities cause various problems. Depending on the type of cavity, it must be sealed against the ingress of moisture and dirt, which can cause corrosion of the assembly. It is also often desirable to significantly reinforce the cavities and thus the assembly, but to keep the weight low. It is also often necessary to stabilize the cavities and thus the assembly in order to reduce the noise that would otherwise be transmitted along or through the cavities. Many of these cavities have irregular shapes or narrow dimensions, making it difficult to properly seal, reinforce and dampen them.

[0003] Therefore, in particular in automotive construction, but also in aircraft and boat construction, sealing elements (English: baffles) are used to seal and / or acoustically isolate cavities, or reinforcing elements (English: reinforcers) are used to reinforce cavities.

[0004] In Figure 1 a vehicle body of a motor vehicle is shown schematically. The vehicle body 10 has here different structural elements with cavities, such as pillars 14 and beams or struts 12. Such structural elements 12, 14 with cavities are usually sealed or reinforced with insulation elements 16.

[0005] A disadvantage of the sealing and / or reinforcing elements known to date is that such components can often not be packed efficiently. Furthermore, confusion and damage of the individual components always occurs when transporting such components. Furthermore, the application of such sealing and / or reinforcing elements can usually not be automated, since the individual elements are provided in disarray. SUMMARY

[0006] It is therefore the task of the present application to provide an improved insulation element for insulating a structural element in a motor vehicle, which avoids the disadvantages of the prior art. In particular, the insulation element should be able to be packed and transported more economically and should also simplify the automation of the use of the insulation element.

[0007] The task is solved by an insulation element for insulating a structural element in a motor vehicle, comprising a carrier and an expandable material arranged on the carrier, the insulation element having an upper side and a lower side, which in the state of use are oriented essentially in the plane of the cross section of the structural element to be insulated, and having at least one guide element by means of which the insulation element can be arranged on a rail element such that the rail element is arranged essentially perpendicularly to the upper side or to the lower side.

[0008] This solution firstly has the advantage that an insulation element is provided which can be stacked on rail elements and can be arranged in a correspondingly uniform orientation. As a result, such insulation elements can be arranged for transport and packed and transported in a stacked state. This leads to savings in transport costs, since the insulation elements can be packed more space-savingly, so that more insulation elements can be transported in a certain volume than in the case of conventional insulation elements. Furthermore, a stack of such insulation elements has the advantage that confusion of different insulation elements can be recognized more easily. If, for example, a first insulation element is packed in a container with a plurality of second insulation elements, this will immediately be noticed, since the first insulation elements cannot generally be stacked with the second insulation elements. Confusion can thus be reduced considerably.

[0009] Furthermore, the insulation element presented here has the advantage that, by means of the stack arrangement for transport and storage, the individual insulation elements are less susceptible to damage. If the individual insulation elements are transported loose in a container, as has been done hitherto, a great deal of contact between the insulation elements occurs, which can sometimes result in damage. If the insulation elements are transported in stacks or on rail elements, however, the number of mechanical contacts between the insulation elements will be reduced considerably. Furthermore, the insulation elements can be designed in such a way that the intended contact points are designed to be robust or less susceptible to damage, and / or the susceptible points of the insulation elements are arranged in a protected position, which is, for example, covered by adjacent insulation elements when stacked.

[0010] Furthermore, the insulation element presented here has the advantage that it facilitates the automated mounting of the insulation elements on the structural elements in the motor vehicle. In this way, for example, an entire stack of such insulation elements can be loaded into a holder with rail elements, from which a robot mounts the individual insulation elements correspondingly on the structural elements. The difficulty of such automated mounting of the insulation elements is significantly increased when the insulation elements are arranged loose in a container.

[0011] The provision of one or more guide elements offers the advantage that the arrangement and stacking of the insulation elements is significantly simplified and improved thereby. By arranging the insulation elements correspondingly on the rail elements, units are already provided which can be used directly in an automated application method.

[0012] Furthermore, groups of different insulating elements are provided on a standardized carrier or package with track elements by providing one or more identical guiding elements or by providing the same distance between two guiding elements. For example, a group of planar, stepped, large and small insulating elements can be provided on the same carrier with two track elements, as long as the distance between the guiding elements in each insulating element is the same. Thereby, logistics in production, transport and application can be significantly simplified or realized at lower costs. Furthermore, by this standardization, automation in applying the insulating elements to the structural elements can be simplified. Thereby, it is not necessary to provide a plurality of packages, carriers and application settings, which reduces costs.

[0013] The term "insulating element" comprises in the scope of the present application an element for insulating and / or sealing and / or enclosing and / or reinforcing and / or isolating a structural element. These different properties of such an insulating element can occur here individually or in combination with one another.

[0014] The terms "upper side" and "lower side" denote in the scope of the present application two main surfaces or two largest sides of an insulating element, respectively. Since the insulating element is designed for enclosing a cross-section in a structural element, this means that the upper side and the lower side, respectively, lie in the application state essentially in the plane of one cross-section to be insulated. Here, the upper side or the lower side can also have a stepped character, that is to say, the upper side or the lower side does not necessarily have to be constructed completely flat.

[0015] In an exemplary embodiment, the fixing element is configured as a clip.

[0016] In an exemplary embodiment, the height of the fixing element along the stacking direction is less than 8 mm, preferably less than 7 mm, particularly preferably less than 6 mm.

[0017] In an exemplary embodiment, the height along the stacking direction on the fixing element base, which height comprises both the fixing element base and the expandable material on the fixing element base for sealing an opening in a structural element into which the fixing element is inserted, is at most 130% or at most 120% or at most 110% of the height of the fixing element along the stacking direction.

[0018] This design of the relative height has the advantage that the insulating elements can thereby be packed more space-savingly.

[0019] In an exemplary extension, the spacer element is itself configured to be stackable, wherein the total height of two spacer elements stacked on top of one another along the stacking direction is at most 170% or at most 160% or at most 150% or at most 140% or at most 130% of the height of a single spacer element.

[0020] In an exemplary embodiment, the insulation element has at least two guide elements.

[0021] In an exemplary extension, the guide elements are arranged on substantially opposite edges of the insulation element.

[0022] In an exemplary embodiment, the insulation element has at least three guide elements, which are arranged on edges of the insulation element.

[0023] In an exemplary embodiment, at least one guide element is configured as a cutout.

[0024] In an exemplary embodiment, at least one guide element is configured as a protrusion.

[0025] In an exemplary embodiment, at least one guide element is configured as a protrusion and at least one guide element is configured as a cutout, wherein the guide element configured as a protrusion can be inserted into the guide element configured as a cutout.

[0026] In an exemplary embodiment, the guide elements have an undercut in a cross section parallel to the upper side or the lower side, so that the guide elements are mechanically fixed against movement away from the rail element by rail elements having a correspondingly matching cross section.

[0027] In an exemplary embodiment, the insulation element has two guide elements, which have different cross sections parallel to the upper side or the lower side.

[0028] In an exemplary embodiment, the cross section of the rail element is substantially configured complementary to the cross section of the guide element.

[0029] In an exemplary extension, the cross sections of the two guide elements are not compatible with each other, so that each guide element can only be arranged on one correspondingly complementarily configured rail element.

[0030] In another exemplary extension, at least one cross section of the guide element is configured asymmetrically, so that the insulation element can only be arranged on a complementarily configured rail element in one spatially oriented position.

[0031] In another exemplary extension, both cross sections of the guide element are configured asymmetrically, so that the insulation element can only be arranged on a complementarily configured rail element in one spatially oriented position.

[0032] As expandable material different materials can be used in principle, which can be foamed. Here the material can have or not have reinforcing properties. In general, the expandable material is expanded by heat, humidity or electromagnetic radiation.

[0033] The expandable material usually has a chemical or physical blowing agent. Chemical blowing agents are organic or inorganic compounds which decompose under the influence of temperature, humidity or electromagnetic radiation, at least one of the decomposition products being a gas. As a physical blowing agent, for example, compounds which transform into a gaseous aggregate state on temperature increase can be used. In this way, both chemical and physical blowing agents are capable of producing a foam structure in the polymer.

[0034] The expandable material is preferably thermally foamed, in which case chemical blowing agents are used. Suitable chemical blowing agents are, for example, azodicarbonamide, sulfonyl hydrazide, bicarbonate or carbonate. Suitable blowing agents are also commercially available, for example, from Akzo Nobel, Netherlands, under the trade name or from Chemtura, USA, under the trade name FOAMSTAR®. The heat required for foaming can be introduced by an external heat source or an internal heat source, such as an exothermic chemical reaction. The foamable material is preferably foamable at temperatures of < 250°C, in particular 100°C to 250°C, preferably 120°C to 240°C, preferably 130°C to 230°C.

[0035] Suitable expandable materials are, for example, one-component epoxy resin systems which do not flow at room temperature, which in particular have increased impact toughness and comprise a thixotropic agent, such as fumed silica or nanoclay. Such epoxy resin systems comprise, for example, 20 to 50% by weight of a liquid epoxy resin, 0 to 30% by weight of a solid epoxy resin, 5 to 30% by weight of a toughness modifier, 1 to 5% by weight of a physical or chemical blowing agent, 10 to 40% by weight of a filler, 1 to 10% by weight of a thixotropic agent and 2 to 10% by weight of a heat-activated hardener. Suitable toughness modifiers are reactive liquid rubbers based on butylnitrile rubber or polyether polyurethane derivatives, core-shell polymers and similar systems known to the skilled person.

[0036] Also suitable expandable materials are one-component polyurethane compositions which contain a blowing agent and are produced from a crystalline polyester containing OH groups mixed with further polyols, preferably polyether polyols, and polyisocyanates having blocked isocyanate groups. The melting point of the crystalline polyester should be > 50°C. The isocyanate groups of the polyisocyanates can be blocked, for example, with nucleophiles such as caprolactam, phenol or benzoxazinone. In addition, blocked polyisocyanates, for example, used in powder coating technology and commercially available, for example, from Degussa AG, Germany, under the trade name DESMODUR® N 3400 and DESMODUR® N 3600. Blocked polyisocyanates commercially available, for example, from Degussa AG, Germany, under the trade name DESMODUR® BF 1350 and

[0037] Furthermore, two-component epoxy resin / polyurethane compositions containing a blowing agent, as described for example in WO 2005 / 080524 A1, are also suitable as expandable material.

[0038] Furthermore, ethylene vinyl acetate mixtures containing a blowing agent are also suitable as expandable material.

[0039] Also suitable expandable materials are for example sold under the trade name 240、 250 or 255 by the company Sika AG, USA and are described in US 5,266,133 and US 5,373,027. This expandable material is particularly preferred for the present application.

[0040] Preferred expandable materials having reinforcing properties are for example the materials sold by the company Sika AG, USA under the trade name 941. This material is described in US 6,387,470.

[0041] In an exemplary embodiment, the expandable material has an expansion rate of 800% to 5000%, preferably 1000% to 4000%, more preferably 1500% to 3000%. An expandable material having this expansion rate has the advantage that a reliable sealing or insulation of the structural element with respect to liquids and sound can be achieved thereby.

[0042] In an exemplary embodiment, the expandable material is configured as a temperature- induced material.

[0043] This has the advantage that the lacquering liquid can be baked using an oven in order to expand the expandable material and thereby insulate the cavity. Thus, no additional working steps are required.

[0044] The carrier can be made of any material. Preferred materials are plastics, in particular polyurethanes, polyamides, polyesters and polyolefins, preferably high-temperature-resistant polymers such as polyphenylene ether, polysulfone or polyethersulfone, which are in particular also foamed; metals, in particular aluminum and steel; or growing organic materials, in particular wood or other (pressed) fiber materials or glassy or ceramic materials; in particular such foamed materials; or any combination of these materials. The use of polyamides, in particular polyamide 6, polyamide 6,6, polyamide 11, polyamide 12 or mixtures thereof is particularly preferred.

[0045] Furthermore, the carrier can for example be solid, hollow or foamed or have a lattice-like structure. The surface of the carrier can generally be smooth, rough or structured.

[0046] In the case of an insulating element with an expandable material located on a carrier, the production method differs depending on whether the carrier is made of a material that can be processed by injection molding. If this is the case, a two-component injection molding method is generally used. Here, the first component, in this case the carrier, is injected first. After the first component has cured, the mold cavity is enlarged or adjusted, or the injection-molded blank produced is placed into a new mold, and then the second component, in this case the expandable material, is injected onto the first component by means of a second injection unit.

[0047] If the carrier is made of a material that cannot be produced by injection molding, i.e. for example from metal, the carrier is placed into a corresponding mold and the expandable material is injection molded onto the carrier. Of course, there is also the possibility of fixing the expandable material on the carrier with special fixtures or fixing methods.

[0048] Furthermore, the carrier can also be produced by other methods, for example by extrusion.

[0049] The insulating element has a stacking height, which corresponds to the additional height of a stack with the insulating element along the stacking direction, which increases this height when another insulating element is stacked on the stack.

[0050] In an exemplary embodiment, the stacking height of the insulating element is at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50%, preferably at most 40%, preferably at most 30% of the total height of a single insulating element along the stacking direction.

[0051] This has the advantage that the insulating elements can thereby be arranged in a stack more space-savingly. Furthermore, an increased stability of the entire stack is achieved by the stronger vertical nesting of adjacent insulating elements in the stack.

[0052] Furthermore, the task set out at the outset is solved by a set of at least two insulating elements, wherein the insulating elements have different shapes and the distance between two guide elements is the same in all insulating elements.

[0053] In a preferred extension, the set comprises at least three or at least four or at least five or at least six insulating elements, which each have a different shape.

[0054] The advantage of providing such a set of insulating elements is that different insulating elements can be arranged on the same rail element by the same distance. Thereby, the logistics in transporting and applying the insulating elements can be realized more cost-effectively and more simply.

[0055] Furthermore, the task set out at the outset is solved by a system having a plurality of insulating elements and at least one holder, in which the insulating elements are arranged.

[0056] In an exemplary embodiment, the system comprises at least 10 or at least 15 or at least 20 or at least 25 or at least 30 stacked insulation elements.

[0057] In another exemplary embodiment, the system comprises at most 150 or at most 120 or at most 100 or at most 80 or at most 60 stacked insulation elements.

[0058] In an exemplary embodiment, one additional insulation element increases the stack by at most 20 mm, particularly preferably at most 18 mm, particularly preferably at most 16 mm, particularly preferably at most 14 mm, particularly preferably at most 12 mm, particularly preferably at most 10 mm, respectively.

[0059] The close stacking of the insulation elements has the advantage that the insulation elements can be packed more efficiently thereby.

[0060] In an exemplary embodiment, the stack height of the individual insulation elements is at most 80%, preferably at most 70%, preferably at most 60%, preferably at most 50%, preferably at most 40%, preferably at most 30% of the total height of the individual insulation elements along the stacking direction.

[0061] The close stacking of the insulation elements has the advantage that the insulation elements can be packed more efficiently thereby.

[0062] In an exemplary embodiment, the holder has two rail elements which extend parallel to each other.

[0063] In an exemplary embodiment, the distance between the two parallel extending rail elements can be varied so that the holder can be adapted to insulation elements having different distances between the guide elements.

[0064] In an exemplary embodiment, the holder has at least one stop element which can selectively stop or release the movement of the insulation elements clamped in the holder along the direction of the rail elements.

[0065] Furthermore, the task set out at the outset is solved by a method for mounting insulation elements on a structural element in a motor vehicle, comprising the following steps: providing a plurality of insulation elements as described above; arranging the insulation elements on the rail elements, the insulation elements being arranged on the rail elements at the guide elements, respectively; and applying the individual insulation elements by an application robot, the application robot taking the individual insulation elements off the rail elements and mounting them on the structural element.

[0066] In an exemplary embodiment, the method comprises the additional step of transporting the plurality of insulation elements from a production location of the insulation elements to a handling location of the insulation elements, wherein the insulation elements are arranged in groups on the rail elements in the packaging.

[0067] In another exemplary embodiment, the insulation elements are arranged on the rail elements in the holder. BRIEF DESCRIPTION OF DRAWINGS

[0068] The details and advantages of the present application will be described hereinafter with reference to examples and with reference to the schematic drawings.

[0069] The drawings are as follows:

[0070] Figure 1 An exemplary view of a vehicle body is shown;

[0071] Figures 2a to 2c A schematic view of an exemplary insulation element is shown;

[0072] Figure 3a and 3b A schematic view of an exemplary insulation element is shown;

[0073] Figure 4 A schematic view of a group of exemplary insulation elements is shown;

[0074] Figures 5a to 5d A schematic view of an exemplary cross section of a guide element and a rail element is shown;

[0075] Figures 6a to 6c A schematic view of an exemplary holder or of a system consisting of a holder and insulation elements arranged in the holder is shown; and

[0076] Figures 7a to 7c A schematic view of an exemplary method for mounting insulation elements on a structural element is shown. DETAILED DESCRIPTION

[0077] An exemplary insulation element 16 is shown schematically in Figures 2a to 2c The insulation element 16 has a carrier 11 and an expandable material 13 arranged on the carrier. The carrier 11 has an upper side 17 and a lower side 18. Furthermore, the carrier 11 has guide elements 6 by means of which the insulation element 16 can be arranged on a rail element (not shown). In this embodiment, two opposite guide elements 6 are configured and are each shaped as a cutout.

[0078] Furthermore, the insulation element 16 comprises spacing elements 4 and fixing elements 3 for pre-fixing the insulation element 16 in a structural element. The insulation element 16 has a height 20, which is measured essentially perpendicular to the upper side 17 or the lower side 18.

[0079] In Figure 3a and 3b other exemplary insulation elements 16 are schematically shown. Here the insulation elements 16 have a first guide element 6 configured as a cutout and a second guide element 6 configured as a protrusion, respectively. The protrusion and the cutout here have a complementary cross section, respectively, so that adjacent insulation elements 16 can be connected to each other by means of the guide elements 6. Furthermore, the cross section of the guide elements 6 in this example is configured with an undercut, so that the insulation elements 16 are mechanically fixed against movement in a plane parallel to the upper side 17 or the lower side 18.

[0080] In Figure 4 a set 2 of different insulation elements 16 is schematically shown. Here the different insulation elements 16 have two guide elements 6, respectively, which are spaced apart from each other by a distance 8. This distance 8 is of the same size for all insulation elements 16 within the set 2. This has the advantage that all insulation elements 16 of this set 2 can be loaded into the same holder (not shown).

[0081] In Figures 5a to 5d exemplary cross sections of guide elements 6 of insulation elements and rail elements 9 are schematically shown. In Figure 5a and 5b the cross sections are configured with an undercut, respectively, so that the insulation elements are mechanically fixed against movement away from the rail elements 9. In contrast, in Figure 5c and 5d the rail elements 9 have a cross section without an undercut.

[0082] In Figures 6a to 6c a holder 7 or a system 1 composed of a holder 7 and insulation elements 16 arranged therein is schematically shown, respectively. In this embodiment, the holder 7 has movable rail elements, so that the distance between the parallel extending rail elements 9 can be varied. Thus, the holder 7 can be adapted to insulation elements 16 having different distances 8 between the guide elements 6.

[0083] Finally, in Figures 7a to 7c an exemplary method for mounting insulation elements 16 on structural elements is schematically shown. In Figure 7a a packaging unit 21 comprises a package 22 and the insulation elements 16 arranged in stacks in the package. Here the insulation elements 16 are all oriented such that the stacking direction 19 extends in the same direction for all stacks in the package 22. Then, such a stack of insulation elements 16 is loaded into a holder 7 with rail elements 9 Figure 7b . In this embodiment, the holder also has stop elements 24 which can stop the insulation elements on the end of the rail elements 9 and selectively release the insulation elements 16. Then, each single insulation element 16 is mounted on a structural element by means of an application robot Figure 7c) from the holder 7 and mounted on a structural element (not shown).

[0084] List of reference signs

[0085] 1 system

[0086] 2 group

[0087] 3 fixing element

[0088] 4 spacing element

[0089] 6 guiding element

[0090] 7 holder

[0091] 8 distance between guiding elements

[0092] 9 rail element

[0093] 10 vehicle body

[0094] 11 carrier

[0095] 12 structural element

[0096] 13 expandable material

[0097] 14 structural element

[0098] 16 insulating element

[0099] 17 upper side

[0100] 18 lower side

[0101] 19 stacking direction

[0102] 20 height of insulating element

[0103] 21 packaging unit

[0104] 22 package

[0105] 23 application robot

[0106] 24 stop element

Claims

1. A system (1) comprising a plurality of insulating elements (16) and a support (7) having at least one rail element (9). The insulating element (16) includes: Carrier (11); and An expandable material (13) is placed on the carrier (11). The insulating element (16) has an upper side (17) and a lower side (18), which are oriented substantially in the plane of the cross section of the structural element (12, 14) to be insulated in the service state. The insulating element (16) has at least one guide element (6), which allows the insulating element (16) to be positioned on the rail element (9) such that the rail element (9) is positioned substantially perpendicular to the upper side (17) or perpendicular to the lower side (18). The insulating element (16) is disposed on the rail element (9) at the guide element (6), and the outlines of each insulating element (16) substantially coincide along the direction of the rail element (9).

2. The system (1) according to claim 1, wherein, The bracket (7) has two rail elements (9) that extend parallel to each other.

3. The system (1) according to claim 1, wherein, The spacing between the two parallel extending rail elements (9) can be changed so that the bracket (7) can be adapted to insulating elements (16) with different distances (8) between the guide elements (6).

4. The system (1) according to any one of claims 1 to 3, wherein, The bracket (7) has at least one stop element that can selectively stop or release the movement of the insulating element (16) clamped in the bracket (7) along the direction of the rail element (9).

5. A method for mounting an insulating element (16) onto a structural element (12, 14) in a motor vehicle, the method comprising the steps of: Multiple insulating elements are provided (16); Insulating elements (16) are disposed on rail elements (9), and the insulating elements (16) are disposed on rail elements (9) at guide elements (6); and The individual insulating elements (16) are applied by an application robot (23), which removes each individual insulating element (16) from the rail element (9) and installs it on the structural elements (12, 14). The insulating element (16) includes: Carrier (11); and An expandable material (13) is placed on the carrier (11). The insulating element (16) has an upper side (17) and a lower side (18), which are oriented substantially in the plane of the cross section of the structural element (12, 14) to be insulated in the service state. The insulating element (16) has at least one guide element (6) and the insulating element (16) can be positioned on the rail element (9) by means of the guide element, such that the rail element (9) is positioned substantially perpendicular to the upper side (17) or perpendicular to the lower side (18).

6. The method according to claim 5, wherein, The method includes additional steps: The plurality of insulating elements (16) are transported from the production location of the insulating elements (16) to the processing location of the insulating elements (16), wherein the insulating elements (16) are respectively arranged in groups on the track element (9) in the package (22).

7. The method according to claim 5 or 6, wherein, The insulating element (16) is placed on the rail element (9) in the bracket (7).

8. An insulating element (16) for insulating structural elements (12, 14) in a motor vehicle, the insulating element (16) comprising: Carrier (11); and An expandable material (13) is placed on the carrier (11). The insulating element (16) has an upper side (17) and a lower side (18), which are oriented substantially in the plane of the cross section of the structural element (12, 14) to be insulated in the service state. The insulating element (16) is characterized in that it has at least one guide element (6), and the insulating element (16) can be disposed on the rail element (9) by means of the guide element, such that the rail element (9) is disposed substantially perpendicular to the upper side (17) or perpendicular to the lower side (18). The guide element (6) has an undercut in a cross section parallel to the upper side (17) or the lower side (18), so that the guide element (6) is mechanically fixed by a rail element (9) having a correspondingly mating cross section to prevent movement away from the rail element (9).

9. The insulating element (16) according to claim 8, wherein, At least one guide element (6) is constructed as a cut.

10. The insulating element (16) according to claim 8, wherein, At least one guide element (6) is configured as a protrusion.

11. The insulating element (16) according to claim 9, wherein, At least one guide element (6) is configured as a protrusion, and the protruding guide element (6) can be inserted into the cut guide element (6).

12. The insulating element (16) according to claim 8, wherein, The stacking height of the insulating element (16) is up to 50% of the height (20) of the insulating element (16).

13. The insulating element (16) according to claim 8, wherein, The insulating element (16) has at least two guiding elements (6) disposed on substantially opposite edges of the insulating element (16).

14. The insulating element (16) according to claim 13, wherein, At least one guide element (6) is constructed as a cut.

15. The insulating element (16) according to claim 13, wherein, At least one guide element (6) is configured as a protrusion.

16. The insulating element (16) according to claim 14, wherein, At least one guide element (6) is configured as a protrusion, and the protruding guide element (6) can be inserted into the cut guide element (6).

17. The insulating element (16) according to claim 13, wherein, The stacking height of the insulating element (16) is up to 50% of the height (20) of the insulating element (16).

18. A group (2) having at least two insulating elements (16) according to any one of claims 13 to 17, wherein, The insulating elements (16) have different shapes, and the distance (8) between the two guide elements (6) is the same in all insulating elements (16).

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