Assembly comprising a heating unit and a sensor unit, method for assembling such an assembly, seat comprising such an assembly and evaluation module

Abstract

The assembly (1, 1', 1'', 1'''') comprises at least one heating unit (3, 3', 3'', 3'''') for heating a surface within a vehicle, which surface can be brought into contact with a person, and at least one sensor unit (21, 21', 21'', 21''') attached to the heating unit (3, 3', 3'', 3'''') in an assembled state of the assembly (1, 1', 1'', 1'''') for detecting the presence of a person in the vicinity and / or on the surface, wherein the assembly (1, 1', 1'', 1'''') in the assembled state comprises at least one fastening arrangement (39, 39', 39'', 39'''') which is secured by at least one retaining means (9, 9', 9'', 9'''') provided on the heating unit (3, 3', 3''''). and at least one holding section (31, 31', 31'' 31'') provided by the sensor unit (21, 21', 21'', 21''') is formed, wherein the holding section (31, 31', 31'') is located in at least one specific cross-sectional plane.31''') is arranged at least partially between at least a part of the heating unit (3, 3', 3'', 3''') and the holding means (9, 9', 9'', 9''').

Description

Title of the invention

[0001] Assembly comprising a heating unit and a sensor unit, method for assembling such an assembly, seat comprising such an assembly and evaluation module field of technology

[0002] The present invention relates to an assembly comprising at least one heating unit for heating a surface within a vehicle, which surface can be brought into contact with a person, and at least one sensor unit attached to the heating unit in an assembled state of the assembly for detecting the presence of a person in the vicinity of and / or on the surface. The present invention also relates to a method for assembling such an assembly. Furthermore, the present invention relates to a seat for a vehicle comprising such an assembly. The present invention also relates to an evaluation module configured to evaluate a sensor signal from a sensor unit of such an assembly. State of the art

[0003] Motor vehicle seats often feature a heating element to warm the surface of the seat that a person comes into contact with. In addition, other separate units are frequently integrated into the seat. For example, a sensor unit may be used to detect the presence of a person in the seat.

[0004] The numerous components increasingly require more installation space and a growing number of cable harnesses inside the seat. This leads to a steadily increasing manufacturing effort for automotive seats. Furthermore, it must be ensured that the different components do not interfere with each other's function.

[0005] DE 10 2018 003 495 A1 relates to a seat occupancy detection element for a vehicle seat with a foil pressure sensor, which has at least one sensor element arranged on a carrier foil, wherein the foil pressure sensor lies flat on a substrate layer and is fixed to it, which is characterized in that the carrier foil of the foil pressure sensor and the substrate layer contain at least a comparable material component and the foil pressure sensor is partially connected to the substrate layer by means of ultrasonic welding. Summary of the invention

[0006] It is therefore an object of the present invention to overcome the described disadvantages of the prior art and in particular to provide means by which heating and sensor units can be provided and operated within a seat in a simple yet reliable manner.

[0007] The problem is solved by the invention according to a first aspect in that an assembly comprising at least one heating unit for heating a surface within a vehicle, which surface can be brought into contact with a person, and at least one sensor unit attached to the heating unit in an assembled state of the assembly for detecting the presence of a person in the vicinity and / or on the surface, wherein the assembly in the assembled state has at least one fastening arrangement which is formed by at least one holding means provided on the heating unit and at least one holding section provided by the sensor unit, wherein in at least one specific cross-sectional plane the holding section is arranged at least partially between at least one part of the heating unit and the holding means, is proposed.

[0008] The invention is thus based on the surprising finding that more reliable heating and monitoring of the vehicle's surface is possible by positioning the conventionally independent heating and sensor units relative to each other in a defined manner.

[0009] According to the invention, by attaching the sensor unit to the heating unit in the proposed assembly by means of at least one fastening arrangement, a particularly reliable relative positioning of the two units can be specified and maintained. This reduces the tolerances existing with respect to the relative positioning of the two units.

[0010] With tighter tolerances, the surface area heated or monitored by the units can be more precisely defined. This allows the sensor information provided by the sensor unit to represent a higher-quality data basis. In turn, this enables more reliable detection of a person's presence on the seat.

[0011] Reduced tolerances allow the heating area of ​​the heating unit to be extended further towards the sensor unit. This results in better surface heating and helps to avoid or at least reduce cold spots on the surface.

[0012] Tighter tolerances also allow for the optimization, and in particular the reduction, of the length of electrically conductive connections between the two units. By making such connecting lines shorter, the proposed assembly saves material, thus reducing its cost and weight.

[0013] Tighter tolerances also allow for the at least partial use of shared cable harnesses for both units. In this way, for example, the power supply of one unit can be used for the other in a simple yet reliable and safe manner. This can advantageously avoid, at least partially, the need for duplicate cable harnesses. This also saves material, and therefore costs and weight. If fewer cable harnesses are required in a seat where the assembly is advantageously installed, the number of cable entry points in the seat materials can also be reduced.

[0014] In particular, the proposed assembly can be installed in a vehicle seat. This is because any influences on the units resulting from a person's weight on the seat, which would conventionally cause the two units to shift relative to each other, can be reliably avoided or at least reduced.

[0015] Lower tolerances therefore allow for more reliable operation of both units.

[0016] The proposed assembly can therefore represent a functional module for heating and monitoring the surface that comes into contact with the person.

[0017] The surface that can come into contact with the person can, for example, be the surface of a vehicle seat. Preferably, the assembly is installed in the seat whose surface can come into contact with a person.

[0018] For example, the sensor unit represents or incorporates a proximity sensor and / or pressure sensor. The proposed assembly then advantageously makes it particularly easy to combine seat heating with a seatbelt reminder.

[0019] The sensor unit is at least partially attached to the heating unit by means of at least one mounting arrangement. Preferably, the sensor unit can be attached to the heating unit without the use of adhesive.

[0020] Preferably, the sensor unit is attached to the heating unit in a non-destructive manner when assembled. This advantageously allows the sensor unit to be transferred non-destructively from the assembled state to a disassembled state, particularly one in which the sensor unit is not attached to the heating unit.

[0021] In particular, the assembly can be transferred from an unassembled state to an assembled state, wherein in the assembled state the assembly has the fastening arrangement with the described arrangement of holding means and holding section.

[0022] Preferably, the retaining element is attached to the heating unit as a separate component. Alternatively, the retaining element is integrally formed with the heating unit. Preferably, the retaining element cannot be removed from the heating unit without damage. This reliably prevents the retaining element from being lost. This ensures a secure and reliable attachment of the sensor unit to the heating unit.

[0023] Preferably, the holding section is integrally formed with the sensor unit. This allows the holding section to be provided particularly easily and reliably.

[0024] Preferably, the specific cross-sectional plane intersects the fastening arrangement.

[0025] The heating unit is preferably in heat-transferring contact with the surface to be heated.

[0026] Alternatively or additionally, it may also be provided that in the specific cross-sectional plane the holding section is at least partially clamped between at least part of the heating unit and the holding means.

[0027] This allows the sensor unit to be held in a defined position on the heating unit easily yet reliably.

[0028] For example, the holding device and / or the heating unit can exert a clamping force on the holding section.

[0029] Alternatively or additionally, it may also be provided that, in the assembled state, the movement of the sensor unit relative to the heating unit in all three spatial directions is at least partially restricted by the fastening arrangement.

[0030] For example, the heating unit can be fixed in place within an installation volume (such as inside a seat). By restricting the movement of the sensor unit accordingly, a defined installation position within the installation volume can also be specified for the sensor unit.

[0031] Alternatively or additionally, it can also be provided that the heating unit has at least one flat first section and that the holding means is preferably provided on the first section, in particular in a way that is not removable without destruction.

[0032] Preferably, in the present application, each section has a specific thickness. The thickness is preferably measured along a direction parallel to the specific cross-sectional plane.

[0033] For example, the first section has a thickness of between 0.1 mm and 10 mm.

[0034] Preferably, for the purposes of the present application, a section is considered to be planar if the section has a significantly larger extent (for example, at least 3 times, 5 times or 10 times) in both width and length than in thickness.

[0035] Alternatively or additionally, the heating unit may also include a first support element, such as at least a fleece element, and at least one heating element, wherein preferably the first support element comprises or represents the first section and / or the heating element comprises at least one heating wire, which is arranged, in particular, at least sectionally on the first support element.

[0036] Preferably, the first support element is designed as a flat surface.

[0037] Optionally, the heating unit can also have electrical connections that can be connected, for example, to a power supply to provide the heating unit with electrical energy.

[0038] In one embodiment, the heating unit is designed, in particular at least partially, as a heating mat.

[0039] Alternatively or additionally, it can also be provided that the sensor unit has at least one planar second section and preferably the holding section is a part of the second section, in particular integral with the sensor unit, in particular with the second section.

[0040] For example, the second section has a thickness of between 0.1 mm and 1 mm.

[0041] For example, the second section can be an arm-shaped section of the sensor unit.

[0042] For example, the sensor unit can have or form a capacitive sensor and / or pressure sensor.

[0043] Optionally, the sensor unit can also have electrical connections that can be connected, for example, to a power supply to provide the sensor unit with electrical energy and / or that allow the transmission of sensor information. For example, the sensor unit can be electrically connected to the heating unit via electrical wires.

[0044] Alternatively or additionally, it can also be provided that the sensor unit has at least a second support element, such as at least a foil element, and at least one sensor element, wherein preferably the sensor element has at least a conductor track structure, which in particular is arranged at least partially on the second support element.

[0045] Preferably, the second support element is designed as a flat surface.

[0046] Optionally, the sensor element can have or represent a conductor track structure, in particular to at least partially form the capacitive sensor and / or pressure sensor.

[0047] Alternatively or additionally, it may also be provided that the second section has an elongated extension, in particular at least sectionally along a direction perpendicular to the specific cross-sectional plane.

[0048] Preferably, for the purposes of the present application, a section has an elongated extent if the extent of the section along a principal extension direction of the section is at least 1.5 times, in particular at least 3 times, in particular at least 5 times, in particular at least 10 times, the extent of the section along an extension direction perpendicular to the principal extension direction of the section.

[0049] Alternatively or additionally, it may also be provided that the second section has at least a convex or concave shaped end region.

[0050] By having a suitable shape for the end section, the second section can be positioned particularly easily when attaching the sensor unit to the heating unit, thus forming the mounting arrangement. In particular, this allows the end section to be guided through the holding element more easily and securely, provided this is required by a suitable design of the holding element, since any edges on the second section that could act as barbs can be avoided in a simple and reliable manner.

[0051] This makes the assembly and operation of the assembly safer.

[0052] Alternatively or additionally, it may also be provided that the second section in the area of ​​the holding section has at least one, in particular lateral, recess in which the holding means is guided at least section by section in the assembled state.

[0053] The recess therefore makes it particularly easy and reliable to ensure that the holding agent runs and remains in the correct position.

[0054] Preferably, the second section in the area of ​​the holding section has a narrower width at least in sections due to the recess, particularly compared to a section of the second section beyond the recess.

[0055] In particular, the recess can be a guiding means through which the holding means is guided, at least in sections.

[0056] Preferably, for the purposes of this application, "lateral" is understood to mean a lateral side of the respective reference object (as distinct from a top or bottom of the reference object), unless the context indicates otherwise.

[0057] Preferably, for the purposes of this application, a "lateral" exclusion of the second section is understood to mean an exclusion provided on a lateral side of the second section.

[0058] The recess is preferably part of the holding section.

[0059] For example, at least one transverse direction can be defined for the holding section, which, for instance, points from one lateral side of the second section to the opposite lateral side of the second section within the holding section area. Preferably, the transverse direction is perpendicular to the main extent of the second section and / or runs parallel to the specific cross-sectional plane.

[0060] In one embodiment, the displacement of the sensor unit relative to the heating unit can be restricted, at least partially, in the assembled state by an interaction of the recess and the retaining element, at least along a first spatial direction and / or a second spatial direction. In particular, the first spatial direction can be a spatial direction perpendicular to the specific cross-sectional plane, perpendicular to a surface normal of the heating unit and / or the retaining section, and / or perpendicular to a transverse direction of the retaining section. In particular, the second spatial direction can be a spatial direction parallel to the specific cross-sectional plane, perpendicular to a surface normal of the heating unit and / or the retaining section, and / or parallel to a transverse direction of the retaining section.

[0061] Alternatively or additionally, it may also be provided that at least one, in particular lateral, projection of the holding section is formed on the second section in the area of ​​the holding section, and that at least one of the at least one recess is provided in the projection.

[0062] Preferably, the cantilever is therefore a laterally projecting area of ​​the support section.

[0063] For example, when looking down at the second section from above, the overhang can protrude laterally in a bulge-like manner.

[0064] Preferably, due to the overhang, the second section in the area of ​​the holding section has a greater width at least in sections, particularly compared to the width of a section of the second section following the holding section.

[0065] The second section preferably has an unchanged thickness in the area of ​​the cantilever as in the rest of the second section.

[0066] Alternatively or additionally, it can also be provided that the second section in the area of ​​the holding section has at least two, in particular lateral, recesses in which the holding means is guided at least section by section in the assembled state, and wherein preferably the two recesses are provided at opposite positions and / or on different lateral sides of the second section. wherein preferably at least two, in particular lateral, projections of the holding section are formed on the second section in the area of ​​the holding section, and wherein at least one of the at least two recesses is provided in each of the two projections, and wherein preferably the two projections are formed at opposite positions and / or on different lateral sides of the second section.

[0067] Alternatively or additionally, it may also be provided that a maximum depth T of at least one recess, measured along a transverse direction perpendicular to the main extent of the second section, has a value between 0.1 mm and 5 mm.

[0068] In one embodiment, the depth T is at least 0.1 mm, in particular at least 1 mm, in particular at least 3 mm, in particular at least 5 mm, in particular at least 7 mm. In one embodiment, the depth T is at most 10 mm, in particular at most 7 mm, in particular at most 5 mm, in particular at most 3 mm.

[0069] Alternatively or additionally, it may also be provided that the width B of the holding section, measured at the level of at least one recess where it has its maximum depth, along a transverse direction perpendicular to the main extent of the second section, has a value between 3 mm and 7 mm.

[0070] In one embodiment, the width B is at least 1 mm, in particular at least 10 mm, in particular at least 30 mm.

[0071] In one embodiment, the width B is at most 100 mm, in particular at most 70 mm, in particular at most 50 mm, in particular at most 30 mm.

[0072] Alternatively or additionally, it may also be provided that for (i) a maximum depth T of the at least one recess (measured along a transverse direction perpendicular to the main extent of the second section) and (ii) a width B of the holding section (measured along the transverse direction at a height of the recess where it has its maximum depth), the ratio B / T has a value between 1 and 10.

[0073] In one embodiment, the ratio B / T is at least 1, in particular at least 2, in particular at least 3, in particular at least 5.

[0074] In one embodiment, the ratio B / T is at most 10, in particular at most 7, in particular at most 5.

[0075] Alternatively or additionally, it may also be provided that, in the assembled state, the holding means extends, in particular in the area of ​​the holding section, at least section by section, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section.

[0076] The top surface is preferably characterized by a surface that points upwards during the use of the assembly in a world coordinate system.

[0077] Preferably, the holding means extends at least section by section along a transverse direction over the second section in the area of ​​the holding section.

[0078] This means that, in the assembled state, the movement of the sensor unit relative to the heating unit may be restricted, at least partially, along a third spatial direction. In particular, this third spatial direction may be a direction parallel to the specific cross-sectional plane, parallel to a surface normal of the heating unit and / or the holding section, and / or perpendicular to a transverse direction of the holding section.

[0079] Alternatively or additionally, it can also be provided that, in order to at least partially transfer the assembly from an unassembled state to the assembled state, the holding section, in particular along a direction perpendicular to the specific cross-sectional plane, is slidable between the heating unit, in particular the first section, and the holding means, preferably by forming a spaced-apart arrangement of at least a partial area of ​​the holding means from the heating unit, in particular from the first section.

[0080] Alternatively or additionally, it can also be provided that, in the assembled state, an extension of the retaining means, in particular within the specific cross-sectional plane, has at least one change of direction, in particular from an at least partial extension of the retaining means along a first direction parallel to a surface, in particular the top, of the retaining section outside the recess to an at least partial extension of the retaining means along a second direction with a component perpendicular to the first direction inside the recess, wherein preferably the second direction points in the direction of the first section.

[0081] By appropriately selecting the shape of the holding element, a force, in particular a clamping force, can be exerted on the holding section in the direction of the heating unit by means of the holding element in the assembled state.

[0082] By appropriately selecting the shape of the retaining element, the displacement of the sensor unit relative to the heating unit can be restricted in the assembled state, at least along the first and / or second spatial direction, and advantageously along all three spatial directions, as already described above.

[0083] In particular, the holding element is guided at least section by the recess in a lateral area, especially one running parallel to the transverse direction.

[0084] Alternatively or additionally, it may also be provided that the extent of the holding element during the transfer of the assembly from an unassembled state to the assembled state is adjustable at least partially depending on the holding section, in particular at least partially depending on the thickness and / or width of the holding section.

[0085] For example, the adjustable profile can be an adjustable position and / or strength of the previously described change in direction and / or an adjustable distance between the heating unit and the holding device.

[0086] Alternatively or additionally, it may also be provided that, in the assembled state, at least one section of an edge of the retaining section, in particular in the area of ​​the recess, is arranged along a direction perpendicular to a surface, in particular the top, of the retaining section above the retaining means.

[0087] By using a suitable arrangement, it can be reliably ensured that the holding device holds the holding section in a defined position.

[0088] Alternatively or additionally, it may also be provided that the holding element has or consists of an electrically non-conductive material.

[0089] Alternatively or additionally, it can also be provided that the holding means is formed by at least one thread section of at least one thread, wherein preferably in the assembled state the thread section, in particular in the area of ​​the holding section, runs at least section by section, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section, and wherein preferably the two ends of the thread section are fixed to the first section, in particular the two ends of the thread section, in particular in the assembled state, are fixed to the first section on different lateral sides of the holding section, in particular at the level of the respective adjacent recess.

[0090] Using a thread is particularly advantageous because the thread can be sewn on. Since this can be done mechanically and thus at least partially automated, providing a suitable retaining device on the heating unit is very simple yet reliable. For example, a heating element of the heating unit (such as a heating wire) could be attached to the first support element of the heating unit by sewing. Then, both the heating element and the retaining device could be attached in a single sewing operation.

[0091] Furthermore, sewing offers advantages over gluing, particularly in terms of speed and sustainability. This can make the production of the assembly and its components more cost-effective.

[0092] Preferably, the thread section runs over the holding section.

[0093] One end of the thread section can be fixed laterally to the first section on one side, adjacent to the holding section, and the other end of the thread section can be fixed laterally to the first section on the other side, adjacent to the holding section.

[0094] Preferably, for the purposes of this application, a thread is understood to be a thin, long, and flexible structure, in particular a strand of textile material. A thread can, in particular, be a textile thread and / or a wire. For example, a thread can comprise at least one natural and / or at least one synthetic material. Examples of materials that a thread can comprise are cotton, silk, nylon, copper, steel, metal, and / or ceramic.

[0095] Alternatively or additionally, it can also be provided that the holding means is formed by several thread sections of at least one thread, wherein preferably in the assembled state the thread sections, in particular in the area of ​​the holding section, each extend at least sectionally, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top side, of the second section, and are preferably spaced apart from each other at least partially along the main extent of the second section, and wherein preferably the ends of the thread sections are fixed to the first section, in particular the two ends of each thread section, in particular in the assembled state, are each fixed to the first section on different lateral sides of the holding section, in particular at the level of the respective adjacent recess.

[0096] Preferably, the length of the holding element, in particular a single thread segment, is between 0.5 and 2 times, in particular between 0.6 and 1.4 times, in particular between 0.8 and 1.2 times, the smallest width of the holding element at the location of the holding element in the assembled state, especially along a direction parallel to (or measured directly in the specific cross-sectional plane).

[0097] Alternatively or additionally, it may also be provided that immediately adjacent thread sections along the main extent of the second section have a distance along the main extent of the second section of between 0.1 and 10 mm, in particular between 0.5 and 5 mm, from each other.

[0098] In one embodiment, the distance is at least 0.1 mm, in particular at least 1 mm, in particular at least 3 mm, in particular at least 5 mm, in particular at least 7 mm.

[0099] In one embodiment, the distance is at most 10 mm, in particular at most 7 mm, in particular at most 5 mm, in particular at most 3 mm.

[0100] Alternatively or additionally, it can also be provided that the several thread sections are arranged along a section length of between 1 mm and 10 mm along the main extent of the second section.

[0101] In one embodiment, the section length is at least 1 mm, in particular at least 3 mm, in particular at least 5 mm, in particular at least 7 mm.

[0102] In one embodiment, the section length is at most 10 mm, in particular at most 7 mm, in particular at most 5 mm, in particular at most 3 mm.

[0103] Alternatively or additionally, it may also be provided that the several thread sections are formed by a single thread, realizing at least one change of direction, in particular a 180° change of direction and / or a 90° change of direction, of the thread's running direction.

[0104] This makes the holding element particularly easy to manufacture. Only a single thread needs to be provided on the first section, and in particular, sewn to it. The holding element can therefore be advantageously attached and / or formed on the first section by machine.

[0105] Alternatively or additionally, it may also be provided that in at least one direction change area of ​​the thread, in which a change in the direction of travel of the thread is realized, one or more auxiliary seams are provided with which the end of at least one thread section, preferably the ends of at least two thread sections, of the thread is fixed to the first section in the direction change area.

[0106] This allows the holding element to be applied very simply yet reliably to the first section. For example, the single thread on the first section can be laid, perhaps in a serpentine pattern and / or mechanically, and in the areas of change of direction, auxiliary seams for fixing the thread – and thus the ends of the respective thread sections – can be attached to the first section, particularly mechanically.

[0107] For example, between 2 and 10, preferably between 3 and 4, auxiliary seams can be provided in each direction change area.

[0108] Alternatively or additionally, it may also be provided that the thread runs through the first section at least once.

[0109] Preferably, the thread passes through the first section at least twice.

[0110] For example, this state can be achieved by having the thread pass through the first section at least once, preferably at least twice, by means of a stitch during a sewing process.

[0111] This allows for a particularly reliable fixation of the thread at the first section.

[0112] Preferably, for the purposes of this application, a thread passes through a (particularly first / second) section if the insertion of the thread into the section is carried out by at least partial and / or at least area-specific displacement and / or removal of the material of the respective section.

[0113] Alternatively or additionally, it can also be provided that the thread does not run through the second section.

[0114] This allows the heating unit to be manufactured separately from the sensor unit, which is particularly advantageous. This increases the modularity of the assembly and / or reduces manufacturing costs.

[0115] Furthermore, this allows for a particularly advantageous non-destructive removal of the sensor unit from the heating unit.

[0116] Alternatively or additionally, it may also be provided that at least one thread section has a length that is greater than the smallest width of the second section in the area of ​​the holding section.

[0117] This allows for reliable positioning of the sensor unit.

[0118] In one embodiment, all thread segments have a corresponding length.

[0119] Preferably, the length is measured along a direction parallel to the specific cross-sectional plane.

[0120] Alternatively or additionally, it may also be provided that at least one thread section has a length that is smaller than the greatest width of the second section in the area of ​​the holding section, in particular in the area of ​​its overhang.

[0121] This allows for reliable positioning of the sensor unit, as it reliably prevents the holding section from accidentally detaching from the holding device.

[0122] In one embodiment, all thread segments have a corresponding length.

[0123] Preferably, the length is measured along a direction parallel to the specific cross-sectional plane.

[0124] Alternatively or additionally, it can also be provided that the holding means is formed by at least one strip of material, wherein preferably in the assembled state the strip of material, in particular in the area of ​​the holding section, runs at least section by section, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section, and wherein preferably the two ends of the strip of material are fixed to the first section, in particular the two ends of the strip of material, in particular in the assembled state, are fixed to the first section on different lateral sides of the holding section, in particular at the level of the respective adjacent recess.

[0125] The material strip can be fixed to the first section, for example, by sewing, gluing and / or welding the material strip.

[0126] Alternatively or additionally, it may also be provided that at least one blocking element is formed on the second section in an area adjacent to the holding section, and that in the assembled state the holding means is arranged to be in contact with the blocking element at least in some areas, thereby blocking the displacement of the sensor unit relative to the heating unit along at least one direction.

[0127] wherein the blocking element is preferably formed by at least one, preferably two, in particular lateral, projections of the second section, and wherein the two projections are preferably formed at opposite positions and / or on different lateral sides of the second section.

[0128] For example, the blocked direction can be perpendicular to the specific cross-sectional plane.

[0129] In one embodiment, the assembly in the assembled state can have at least one further fastening arrangement, the holding means of which is arranged in contact with a further blocking element.

[0130] In one embodiment, the assembly in the assembled state may have at least one further fastening arrangement whose holding means is not arranged in contact with a blocking element.

[0131] Alternatively or additionally, it can also be provided that the assembly in the assembled state has a plurality of fastening arrangements, in particular of a similar design, wherein preferably each of the fastening arrangements is formed by at least one holding means provided on the heating unit and at least one holding section provided by the sensor unit, and in at least one specific cross-sectional plane the respective holding section is arranged at least partially between the heating unit and the respective holding means. and wherein preferably a permissible attachment of the sensor unit to the heating unit according to the Poka Yoke principle is specified by the plurality of fastening arrangements.

[0132] Preferably, several retaining elements are provided on the heating unit, and several retaining sections are provided by the sensor unit. The individual mounting arrangements are then formed by at least one of the retaining elements, particularly exclusively, and at least one of the retaining sections, particularly exclusively, wherein in at least one specific cross-sectional plane, the respective retaining section is arranged at least partially between the heating unit and the respective retaining element. "Exclusively" means that the respective retaining element or the respective retaining section contributes only to a single mounting arrangement among the plurality of mounting arrangements.

[0133] For example, the sensor unit can have several second sections, and at least two, preferably all, of the retaining sections provided by the sensor unit are part of different second sections. In one embodiment, two or more than two retaining sections provided by the sensor unit are part of an identical second section. In this case, the retaining sections can be spaced apart from each other, particularly along a main extent of the second section in question.

[0134] For each fastening arrangement, a specific cross-sectional plane is preferably defined. The previous references to the (single) specific cross-sectional plane then apply accordingly to the individual specific cross-sectional planes in connection with the respective fastening arrangement.

[0135] Due to the Poka Yoke principle, only one alignment (especially position, location and / or orientation) of the sensor unit relative to the heating unit is possible, so that a preferred alignment of the sensor unit relative to the heating unit can be specified particularly easily.

[0136] Preferably, the second sections in the area of ​​at least two retaining sections of different mounting arrangements of the majority of mounting arrangements each have a recess only on one side. In this case, it is advantageous if the openings of at least two of these recesses, each provided only on one side, point in different, preferably opposite, directions. This allows for a particularly secure and unambiguous attachment of the sensor unit to the heating unit.

[0137] The problem is solved by the invention according to a second aspect by proposing a method for assembling a component comprising at least one heating unit on which at least one holding means is provided, and at least one sensor unit which provides at least one holding section, the method comprising providing the heating unit and the sensor unit and attaching the sensor unit to the heating unit by forming at least one fastening arrangement such that in at least one specific cross-sectional plane the holding section is arranged at least partially between at least one part of the heating unit and the holding means.

[0138] All the advantages described with regard to the assembly according to the first aspect of the invention also apply accordingly to the method according to the second aspect of the invention. Therefore, reference can be made to the preceding explanations in this respect.

[0139] The features described in relation to the assembly according to the first aspect of the invention can also be provided accordingly in the method, individually and in any combination, unless otherwise indicated by the context.

[0140] In particular, the process elements described in connection with the assembly according to the first aspect of the invention can also be provided accordingly in the process, individually and in any combination, unless otherwise indicated by the context. Optionally, an assembly according to the first aspect of the invention can be obtained in the assembled state.

[0141] The problem is solved by the invention according to a third aspect by proposing a seat for a vehicle, in particular a motor vehicle, comprising an assembly according to the first aspect of the invention.

[0142] All the advantages described with regard to the assembly according to the first aspect of the invention also apply accordingly to the seat according to the third aspect of the invention. Therefore, reference can be made to the preceding explanations in this respect.

[0143] The problem is solved by the invention according to a fourth aspect by proposing an evaluation module which is configured to evaluate a status signal of a seat belt of a motor vehicle and a sensor signal of a sensor unit of an assembly installed in the motor vehicle, in particular in a seat according to the third aspect of the invention, and to generate, at least partially based on a result of the evaluation, a result signal which is indicative that a person detected as present, at least partially by means of the sensor unit, has not yet properly fastened the seat belt.

[0144] All the advantages described with regard to the assembly according to the first aspect of the invention also apply accordingly to the evaluation module according to the fourth aspect of the invention. Therefore, reference can be made to the previous explanations in this respect.

[0145] The evaluation module can be implemented, for example, in software, in hardware, or as a combination of both. The evaluation module can be a data processing device. Alternatively or additionally, the evaluation module can include memory, a processor, a receiving device, a transmitting device, or any combination thereof. Alternatively or additionally, the evaluation module can provide and / or make available all of the above, including, in particular, all necessary resources, for example, in the form of software and / or hardware resources.

[0146] The evaluation module advantageously has interfaces for receiving the status signal and / or sensor signal and / or means for processing, evaluating, and / or analyzing the respective signals. The evaluation module advantageously has interfaces for sending and / or outputting the result signal. The status signal and / or the sensor signal can be supplied to or supplied with the evaluation module. Brief description of the drawings

[0147] Further features and advantages of the invention will become apparent from the following description, in which preferred embodiments of the invention are explained with reference to schematic drawings.

[0148] This shows: Fig. 1a a schematic representation of an assembly according to the first aspect of the invention in a first embodiment in a top view; Fig. 1b a cutaway view of the assembly made of Fig. 1a; Fig. 2a a schematic representation of a heating unit of the assembly made of Fig. 1a in a supervisory role; Fig. 2b a cross-sectional view of the heating unit Fig. 2a; Fig. 3 a schematic representation of a sensor unit of the assembly made of Fig. 1a in a supervisory role; Fig. 4 a schematic representation of an assembly according to the first aspect of the invention in a second embodiment in a top view; Fig. 5 a schematic representation of an assembly according to the first aspect of the invention in a third embodiment in a top view; Fig. 6 a schematic representation of an assembly according to the first aspect of the invention in a fourth embodiment in a top view; Fig. 7 a flowchart of a process according to the second aspect of the invention Fig. 8 a schematic representation of a seat according to the third aspect of the invention in a cross-sectional view; and Fig. 9 a schematic representation of an evaluation module according to the fourth aspect of the invention. Description of the embodiments

[0149] Fig. Figure 1a shows a schematic representation of an assembly 1 according to the first aspect of the invention in a first embodiment in a top view. Fig. 1b shows a cutaway view of the assembly made of Fig. 1a, where the cut is perpendicular to the plane of the drawing Fig. 1a runs along line S and the viewing direction is parallel to direction R.

[0150] The assembly 1 includes a heating unit 3 with which a surface within a vehicle, which surface can be brought into contact with a person, can be heated.

[0151] Fig. Figure 2a shows a schematic representation of the heating unit 3 in a top view. Fig. Figure 2b shows a cross-sectional view of heating unit 3. Fig. 2a, wherein the cut is perpendicular to the plane of the drawing Fig. 2a runs along line QS.

[0152] The heating unit 3 can, for example, be designed as a heating mat. In this case, the heating unit 3 can have a first support element 5 (for example, a fleece element) and a component arranged on the first support element (in Fig. 2a) heating element (not shown), such as a heating wire.

[0153] The heating unit 3 has a planar first section 7. This first section 7 corresponds to the one in Fig. The first support element 5 is shown in Figure 2a. A retaining element 9 is provided on the first section 7, which is formed by several thread segments 11 of a thread 13, for example, five in this case. The thread 13 is laid in a loop on the first section 7 with several 180° changes in the direction of travel of the thread 13. The ends 15 of the thread segments 11 are fixed to the first section 7 in areas 17. This results in several thread segments 11 running parallel to each other and spaced apart along the Y-direction. In the respective areas 17, where a change in the direction of travel of the thread is implemented, the ends 15 of the thread segments are fixed to the first section, for example, by several auxiliary seams.

[0154] The retaining element 9 can therefore only be detached from the first section 7 by opening the auxiliary seams and thus not without destruction.

[0155] From the cross-sectional view of the Fig. 2b shows that the thread section 11 depicted therein (as well as the other thread sections of the holding element) lies loosely on a surface 19 of the first section 7 and that its ends 15 are fixed to the first section 7 in the areas 17. The in Fig. 2b The air gap visible between the first section 7 and the thread section 11 is shown only for better visibility of the individual elements.

[0156] With regard to the holding element 9, for the sake of clarity, of the features that occur more frequently (such as the multiple thread segments 11 or their ends 15), only one of the features is shown in the Fig. 1a, Fig. 1b, Fig. 2a and Fig. 2b is marked with a reference symbol.

[0157] Furthermore, assembly 1 includes a sensor unit 21, which can detect the presence of a person in the vicinity and / or on the surface (which can be heated by the heating unit).

[0158] Fig. Figure 3 shows a schematic representation of sensor unit 21 in a top view.

[0159] The sensor unit 21 can, for example, have a second support element 23 in the form of a foil element. The second support element 23 can be flexible and thus curved. A sensor element 25 in the form of several conductor track structures is arranged on the second support element 23. Furthermore, the sensor unit 21 has various electronic components in a component area 27. The component area 27 is rigidly connected to the second support element. Thus, the sensor unit 21 forms a capacitive proximity sensor.

[0160] The sensor unit 21 has a planar second section 29 with an elongated extension along the Y-direction. This second section 29 corresponds to the one in Fig. The part of the second support element 23 shown in Figure 3a could, however, only be a part of it. As an integral part of the second section 29, the sensor unit 21 provides a holding section 31. In other words, the holding section 31 is a subsection of the second section 29.

[0161] The second section 29 has two lateral projections 33 in the area of ​​the retaining section 31, which are part of the retaining section 31. These projections 33 are formed on different lateral sides of the second section 29 and at opposite positions within the second section 29. Each projection 33 has a lateral recess 35 of the second section 29. The openings 37 of the two lateral recesses 35 point in opposite directions. The recesses 35 are oval-shaped. The retaining section 31 is thus symmetrical about a central axis of the second section 29. Therefore, for the sake of clarity, only one of the features that occur equally on both lateral sides of the second section is shown in the Fig. 1a, Fig. 1b and Fig. 3 with a reference mark.

[0162] The maximum depth of the two recesses 35 is, for example, 5 mm each. The maximum depth is indicated along the guide line. Fig. The measurement was taken along the dashed line shown in section 3. The measuring section runs along a transverse direction (X-direction) that is perpendicular to the main extension (Y-direction) of the second section 29.

[0163] Where the two recesses 33 have their maximum depth (and thus, in this case, the retaining section 31 has its smallest width), the width of the retaining section 31 is, for example, 14 mm.

[0164] In another embodiment, the retaining section 31 could also have only one of the two lateral projections 33 and thus only a single recess 35.

[0165] In another embodiment, the recesses 35 could be rectangular instead of oval.

[0166] The in Fig. 2a and Fig. 2b separately shown heating unit 3 and the one in Fig. The three separately shown sensor units 21 are components of the in Fig. 1a Assembly 1 shown in an assembled state. In an assembled state of assembly 1, the sensor unit 21 is attached to the heating unit 3 by means of a fastening arrangement 39 of assembly 1.

[0167] As can be seen particularly from the sectional view of the Fig. As can be seen in Figure 1b, the fastening arrangement 39 is formed by the retaining element 9 and the retaining section 31. In this case, a specific cross-sectional plane intersecting the fastening arrangement 39 is defined, which in this case is the drawing plane of the Fig. 1b, the holding section 31 is arranged at least partially between the heating unit 3, in particular the first section 7, and the holding means 9.

[0168] The holding element 9 (in this case the thread sections 11) extends transversely along a surface 41 of the second section 29 in the area of ​​the holding section 31, which is located in the Fig. 1a and Fig. 1b represents a top surface of the second section 29. This surface 41 is simultaneously a surface of the holding section 31.

[0169] Due to the mounting arrangement, the movement of the sensor unit 21 relative to the heating unit 3 in all three spatial directions is restricted when assembled.

[0170] Regardless of which of the three spatial directions X, Y, and Z the sensor unit 21 is moved relative to the heating unit 3, the holding element 9 (here, the thread segments 11) restricts the movement of the holding element 31, and thus the movement of the entire sensor unit 21. In other words, the threads of the thread segments 11 obstruct the relative movement of the holding element 31.

[0171] If, for example, the heating unit 3 is stationary, the holding means 9 restricts the displacement of the sensor unit 21 relative to the stationary heating unit 3, in particular along a direction parallel (and antiparallel) to the X-axis (i.e., in Fig. 1a to the right or left), along a direction parallel (and antiparallel) to the Y-axis (thus in Fig. 1a upwards or downwards) and along a direction parallel to the Z-axis (thus in Fig. 1a in the direction of the viewer).

[0172] In particular, displacement is restricted at least along a direction parallel (and antiparallel) to the X-axis and along a direction parallel (and antiparallel) to the Y-axis by an interaction between the retaining element 9 and the two recesses 33. This is achieved by the fact that, in the assembled state, the retaining element 9, in the form of the thread segments 11, is guided at least partially within the two recesses 35. This, in turn, is achieved by the fact that the extension of the retaining element 9 exhibits a change of direction in the region of the recesses 35. Specifically, the retaining element 9 changes direction from a (first) direction parallel to the surface of the retaining segment 31 (i.e., approximately parallel to the X-axis) to a (second) direction with a component perpendicular to the first direction. The second direction points in the direction of the first segment 7.

[0173] Since the two ends 15 of each thread section 11 are fixed on different lateral sides of the holding section 31 to the first section 7 in the assembled state, the change of direction is very easy to achieve by forcing the thread sections upwards through the holding section 31 at least in a central area and thereby arranging them spaced apart from the first section 7.

[0174] As seen in the cutaway view of the Fig. As can be seen in Figure 1b, in the assembled state, a section of an edge 43 of the retaining section 31 is located in the area of ​​the recess 35 along the Z-direction above the retaining means 9. Therefore, if the thread sections 11 abut a (particularly internal) surface 45 of the recess 35 when the sensor unit 21 is moved relative to the heating unit 3 along the Y-direction, further movement of the sensor unit 21 along the Y-direction is restricted.

[0175] Furthermore, displacement is also restricted, at least along one direction parallel (and antiparallel) to the X-direction, by an interaction between the retaining element 9 and the retaining section 31. This is because, due to the chosen orientation of the retaining element 9 in the assembled state, particularly in the area of ​​the recesses 35, the thread sections 11 restrict the displacement of the retaining section 31 in the area of ​​the recess 35, as is also evident from Fig. 1b is evident.

[0176] The sensor unit 21 can therefore be easily attached to the heating unit 3 by using the retaining section 31 (in Fig. 1a from below) along the Y-direction between the first section 7 and the retaining element 9. This is facilitated by the fact that the second section 29 has a convexly shaped end region 47. The convex shape of the end region 47 of the second section 7 allows for particularly reliable insertion of the second section 7 between the first section 7 and the retaining element 9. Furthermore, the upper regions of the projections 33, which act as shoulders 49, facilitate the secure guidance of the retaining element 9 along the projections 33 (possibly by stretching the retaining element 9 and / or by curvature of the second section 29) until the retaining element 9 is guided in the recesses 35 as described. Further relative displacement is then restricted as explained.

[0177] Adjacent thread sections 11 of the present five thread sections 11 point along the main extent of the second section ( Fig. 1a; Y-direction) maintain a distance of 1 mm from each other and thus extend along a section length of 5 mm. The individual thread sections 11 have a length that is each greater than the smallest width of the second section 29 in the area of ​​the holding section 31.

[0178] The sensor unit 21 is attached to the heating unit 3 in a non-destructive manner by means of the fastening arrangement 39. To detach the sensor unit 21 from the heating unit 3, the sensor unit 21 can, for example, be bent in the area of ​​the second section 29 and / or the retaining element 9 can be manually stretched so that the retaining section 31 can be removed from the effective area of ​​the retaining element 9.

[0179] Fig. Figure 4 shows a schematic representation of an assembly 1' according to the first aspect of the invention in a second embodiment in a top view.

[0180] The assembly 1' of the second embodiment is similar to the assembly 1 of the first embodiment ( Fig. 1a, Fig. 1b) is constructed. Therefore, identical features are identified by the same, but simply crossed-out, reference numerals. For this reason, only the differences between assembly 1' of the second embodiment and assembly 1 of the first embodiment need to be described.

[0181] In assembly 1' of the second embodiment, the retaining means 9' is formed by a strip of material 51'. The two ends 15' of the material strip are each fixed on different lateral sides of the retaining section 31' in the areas 17' on the first section 7'.

[0182] Fig. Figure 5 shows a schematic representation of an assembly 1" according to the first aspect of the invention in a third embodiment in a top view.

[0183] In assembly 1" of the third embodiment, features identical to those of assembly 1 of the first embodiment are provided with the same reference numerals, but with two crossed-out reference numerals. Only the differences between assembly 1" of the third embodiment and assembly 1 of the first embodiment are described below.

[0184] In the assembly 1" of the third embodiment, the second section 29" in the area of ​​the retaining section 31" has no lateral projections (such as the projections 33 in the first embodiment or projections 33' in the second embodiment) and no recesses (such as the recesses 35 in the first embodiment or recesses 35' in the second embodiment). Accordingly, the retaining element 9", which in the third embodiment is designed in the form of thread segments 11" exactly as in the first embodiment, is also not guided in recesses. Instead, it runs transversely along the second section along the surface 41" of the retaining section 31".

[0185] Thus, the assembly 1" of the third embodiment forms a fastening arrangement 39" with the holding means 9" and the correspondingly modified holding section 31".

[0186] In assembly 1" of the third embodiment, however, the second section 29" has a feature in an area adjacent to the holding section 31" (in Fig. 5 in the Y direction below the holding section 31") a blocking element 53" is formed.

[0187] In the Fig. In the assembled state of assembly 1" shown in Figure 5, the retaining element 9" is positioned at least partially in contact with the blocking element 53". This prevents the sensor unit 21" from moving relative to the heating unit 3" along at least the positive Y-direction.

[0188] The blocking element 53" is formed by two lateral projections 55" of the second section 29". The two projections 55" are located at opposite positions and on different lateral sides of the second section 29" (in Fig. 5 also “left and right”) trained.

[0189] In another embodiment, the assembly 1" could have a further fastening arrangement, wherein the further fastening arrangement could be configured like the fastening arrangement 39" of the third embodiment, like the fastening arrangement 39' of the second embodiment, or like the fastening arrangement 39 of the first embodiment. The further fastening arrangement could, for example, be provided offset along the second section 29" relative to the fastening arrangement 39" (for example, in Fig. 5 offset upwards along the Y-direction). The retaining element of the additional fastening arrangement would preferably not be positioned in contact with a (further) locking element in the assembled state. The additional fastening arrangement would allow for a more reliable attachment of the sensor unit 21" to the heating unit 3".

[0190] Fig. Figure 6 shows a schematic representation of an assembly according to the first aspect of the invention in a fourth embodiment in a top view.

[0191] The assembly 1''' of the fourth embodiment is similar to the assembly 1 of the first embodiment ( Fig. 1a, Fig. 1b) is constructed. Therefore, identical features are identified by the same reference numerals, which are, however, triple-crossed. For this reason, only the differences between assembly 1''' of the fourth embodiment and assembly 1 of the first embodiment need to be described.

[0192] Three holding elements 9''' are provided on the heating unit 3'''. Each holding element 9''' is designed like the (single) holding element 9 of the first embodiment in the form of several thread segments. The individual details of the holding elements 9''' are described in Fig. Figure 6 is not provided with reference numerals for the sake of clarity. Instead, reference can be made to the illustration in the corresponding figures of the first embodiment.

[0193] The three holding elements 9''' are therefore three groups of thread segments, with each group of thread segments being formed by a single thread. Alternatively, the three groups of thread segments could also be formed by a single thread.

[0194] The sensor unit 21''' has three second sections 29'''. A retaining section 31''' is provided at each second section 29'''. Each retaining section 31''' is configured like the (single) retaining section 31 of the first embodiment. The individual details of the retaining section 31''' are shown in Fig. Figure 6 is not provided with reference numerals for the sake of clarity. Instead, reference can be made to the illustration in the corresponding figures of the first embodiment.

[0195] The sensor unit 21''' thus has three identically constructed mounting arrangements 39''' in its assembled state. A separate, specific cross-sectional plane is defined for each mounting arrangement 39''', perpendicular to the plane of the drawing. Fig. 6 runs along the respective line S'''. In each of these specific cross-sectional planes, the holding section of the respective fastening arrangement 39''' is arranged at least partially between the first section 7''' and the holding means of the respective fastening arrangement 39'''.

[0196] The multiple fastening arrangements 39''' in assembly 1''' of the fourth embodiment, here three fastening arrangements 39''', provide a permissible fastening of the sensor unit 21''' to the heating unit 3''' according to the Poka-Yoke principle. Specifically, if the sensor unit 21''' is (in the plane of the drawing of the Fig. 6) when rotated, there is no second position in which the sensor unit 21''' can be attached to the heating unit 3'''.

[0197] Fig. Figure 7 shows a flowchart of a process according to the second aspect of the invention.

[0198] The method reliably enables the assembly of a module comprising at least one heating unit, on which at least one holding means is provided, and at least one sensor unit, which provides at least one holding section. For example, this can be a module according to the first aspect of the invention, such as the module 1 of the first embodiment, the module 1' of the second embodiment, the module 1'' of the third embodiment, or the module 1''' of the fourth embodiment.

[0199] The heating unit and the sensor unit are provided in 101.

[0200] In 103, the sensor unit is attached to the heating unit by forming at least one fastening arrangement. The fastening arrangement is designed such that, in at least one specific cross-sectional plane, the holding section is arranged at least partially between at least a part of the heating unit and the holding element.

[0201] Fig. Figure 8 shows a schematic representation of a seat 201 according to the third aspect of the invention in a cross-sectional view.

[0202] The seat 201 comprises a lower part 203 and a back part 205. Within the seat 201, particularly within the lower part 203, an assembly 207 according to the first aspect of the invention is provided. This assembly can, for example, be one of the assemblies 1, 1', 1'' or 1''' described above. The heating unit of the assembly 207 can heat a surface 209 of the seat 201. Furthermore, the sensor unit of the assembly 207 can detect the presence of a person near (and also on) the surface 209.

[0203] Fig. Figure 9 shows a schematic representation of an evaluation module 211 according to the fourth aspect of the invention.

[0204] The evaluation module 211 is designed to evaluate a status signal l1 (as a first input variable) of a safety belt of a motor vehicle and a sensor signal l2 (as a second input variable) of a sensor unit of an assembly installed in the motor vehicle according to the first aspect of the invention and to generate a result signal O (as an output variable) that is indicative of the fact that a person detected as present at least partially by means of the sensor unit has not yet properly fastened the safety belt.

[0205] The features disclosed in the preceding description, in the drawings and in the claims can be essential to the invention in its various embodiments, both individually and in any combination. Reference symbol list 1, 1', 1'', 1''' assembly 3, 3', 3'', 3''' Heating unit 5, 5', 5'' support element 7, 7', 7'' 7''' First section 9, 9', 9'', 9''' Holding device 11, 11'' thread sections 13, 13'' thread 15, 15', 15'' End 17, 17', 17'' area 19 surface 21, 21', 21'', 21''' Sensor unit 23, 23', 23'' second support element 25, 25', 25'' Sensor element 27, 27', 27'' component range 29, 29', 29'', 29''' Second Section 31, 31', 31'', 31''' Stopping section 33, 33' cantilever 35, 35' recess 37, 37' Openings 39, 39', 39'' 39''' Mounting arrangement 41, 41', 41'' surface 43, 43' edge 45, 45' Edge area 47, 47', 47'' End range 49, 49' shoulder 51' material strips 53'' locking element 55'' cantilever 100 Flowchart 101 Providing a heating unit and a sensor unit 103 Attaching the sensor unit to the heating unit by forming at least one fastening arrangement 201 seats 203 Lower part 205 Back section 207 Assembly 209 surface 211 Evaluation module l1 status signal l2 sensor signal O result signal QS cutting line R direction of view S, S''' Intersection line X, Y, Z spatial direction

Claims

[1] Assembly (1, 1', 1'', 1'''') comprising at least one heating unit (3, 3', 3'', 3'''') for heating a surface within a vehicle, which surface can be brought into contact with a person, and at least one sensor unit (21, 21', 21'', 21''') attached to the heating unit (3, 3', 3'', 3'''') in an assembled state of the assembly (1, 1', 1'', 1'''') for detecting the presence of a person in the vicinity and / or on the surface, wherein the assembly (1, 1', 1'', 1'''') in the assembled state comprises at least one fastening arrangement (39, 39', 39'', 39'''') which is secured by at least one retaining means (9, 9', 9'') provided on the heating unit (3, 3', 3'', 3''''). 9''') and at least one holding section (31, 31', 31'' 31''') provided by the sensor unit (21, 21', 21'', 21''') is formed, wherein the holding section (31, 31', 31'') is located in at least one specific cross-sectional plane.31''') is arranged at least partially between at least a part of the heating unit (3, 3', 3'', 3''') and the holding means (9, 9', 9'', 9'''). [2] Assembly (1, 1', 1'', 1''') according to claim 1, wherein in the specific cross-sectional plane the retaining section (31, 31', 31'' 31''') is arranged to be clamped at least partially between the at least part of the heating unit (3, 3', 3'', 3''') and the retaining means (9, 9', 9'', 9'''). [3] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein in the assembled state the displacement of the sensor unit (21, 21', 21'', 21''') relative to the heating unit (3, 3', 3'', 3''') in all three spatial directions is restricted at least partially by the fastening arrangement (39, 39', 39'' 39'''). [4] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein the heating unit (3, 3', 3'', 3''') has at least one planar first section (7, 7', 7'', 7''') and preferably the retaining means (9, 9', 9'', 9''') is provided on the first section (7, 7', 7'', 7'''), in particular in a way that is not removable without damage. [5] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein the sensor unit (21, 21', 21'', 21''') has at least one planar second section (29, 29', 29'', 29''') and preferably the retaining section (31, 31', 31'', 31''') is a part of the second section, in particular integral with the sensor unit (21, 21', 21'', 21'''), in particular with the second section (29, 29', 29'', 29'''). [6] Assembly (1, 1', 1'', 1'''') according to claim 5, wherein the second section (29, 29', 29'', 29'''') in the area of ​​the retaining section (31, 31', 31'', 31'''') has at least one, in particular lateral, recess in which recess the retaining means (9, 9', 9'', 9'''') is guided at least section by section in the assembled state. [7] Assembly (1, 1', 1'', 1'''') according to one of claims 5 or 6, wherein at least one, in particular lateral, projection (33, 33', 55'') of the holding section (31, 31', 31'' 31'''') is formed on the second section in the area of ​​the holding section (31, 31', 31'' 31''''), and wherein at least one of the at least one recess is provided in the projection (33, 33', 55''). [8] Assembly (1, 1', 1'', 1''') according to one of claims 6 to 7, wherein the second section (29, 29', 29'', 29''') has at least two, in particular lateral, recesses in the area of ​​the retaining section (31, 31', 31'', 31''') in which recess the retaining means (9, 9', 9'', 9''') is guided at least section by section in the assembled state, and wherein preferably the two recesses are provided at opposite positions and / or on different lateral sides of the second section (29, 29', 29'', 29'''), wherein preferably at least two, in particular lateral, projections (33, 31''') are provided on the second section (29, 29', 29'', 29''') in the area of ​​the retaining section (31, 31', 31'', 31'''). 33', 55'') of the holding section (31, 31', 31'' 31'''') are formed, and wherein at least one of the at least two recesses is provided in each of the two cantilevers (33, 33', 55''), and wherein preferably the two cantilevers (33, 33',55'') are formed at opposite positions and / or on different lateral sides of the second section (29, 29', 29'', 29''''). [9] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein in the assembled state the retaining means (9, 9', 9'', 9'''), in particular in the area of ​​the retaining section (31, 31', 31'', 31'''), extends at least sectionally, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section. [10] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein, in order to at least partially transfer the assembly (1, 1', 1'', 1''') from an unassembled state to the assembled state, the retaining section (31, 31', 31'' 31'''), in particular along a direction perpendicular to the specific cross-sectional plane, is slidable between the heating unit (3, 3', 3'', 3'''), in particular the first section (7, 7', 7'', 7'''), and the retaining means (9, 9', 9'', 9'''), preferably forming a spaced-apart arrangement of at least a partial area of ​​the retaining means (9, 9', 9'', 9''') from the heating unit (3, 3', 3'', 3'''), in particular from the first section (7, 7', 7'', 7'''). [11] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein in the assembled state an extension of the retaining means (9, 9', 9'', 9'''), in particular within the specific cross-sectional plane, has at least one change of direction, in particular from an at least partial extension of the retaining means (9, 9', 9'', 9''') along a first direction parallel to a surface (41, 41', 41''), in particular the top side, of the retaining section (31, 31', 31'' 31''') outside the recess to an at least partial extension of the retaining means (9, 9', 9'', 9''') along a second direction with a component perpendicular to the first direction inside the recess, wherein preferably the second direction points in the direction of the first section (7, 7', 7'', 7'''). [12] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein the extent of the holding means (9, 9', 9'', 9''') is adjustable when transferring the assembly (1, 1', 1'', 1''') from an unassembled state to the assembled state, at least partially depending on the holding section (31, 31', 31'' 31'''), in particular at least partially depending on a thickness and / or width of the holding section (31, 31', 31'' 31'''). [13] Assembly (1, 1', 1'', 1'''') according to one of the preceding claims, wherein in the assembled state at least a section of an edge (43, 43') of the retaining section (31, 31', 31'', 31''''), in particular in the area of ​​the recess, is arranged along a direction perpendicular to a surface, in particular the top, of the retaining section (31, 31', 31'' 31'''') above the retaining means (9, 9', 9'', 9''''). [14] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein the retaining means (9, 9', 9'', 9''') is formed by at least one thread section (11, 11'') of at least one thread (13, 13''), wherein preferably in the assembled state the thread section (11, 11''), in particular in the region of the retaining section (31, 31', 31'', 31'''), extends at least sectionally, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section, and wherein preferably the two ends (15, 15', 15'') of the thread section (11, 11'') are fixed to the first section, in particular the two ends (15, 15', 15'') of the thread section (11, 11''), in particular in the assembled state, on different lateral sides of the The holding section (31, 31', 31'', 31''''), in particular at the level of the respective adjacent recess, is fixed to the first section (7, 7', 7'', 7''''). [15] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein the retaining means (9, 9', 9'', 9''') is formed by several thread sections (11, 11'') of at least one thread (13, 13''), wherein preferably in the assembled state the thread sections (11, 11'' ), particularly in the area of ​​the holding section (31, 31', 31'', 31'''), each extending at least sectionally, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section (29, 29', 29'', 29'''), and preferably being at least partially spaced apart from each other along the main extent of the second section (29, 29', 29'', 29'''), and wherein preferably the ends (15, 15', 15'') of the thread sections (11, 11'') are fixed to the first section (7, 7', 7'', 7''''), in particular the two ends (15, 15', 15'') of each thread section (11, 11''), especially in the assembled state, are fixed to the first section on different lateral sides of the retaining section (31, 31', 31'', 31'''), in particular at the level of the respective adjacent recess. [16] Assembly (1, 1', 1'', 1''') according to any one of claims 1 to 13, wherein the retaining means (9, 9', 9'', 9''') is formed by at least one strip of material (51'), wherein preferably in the assembled state the strip of material (51'), in particular in the region of the retaining section (31, 31', 31'', 31'''), extends at least sectionally, in particular parallel to the specific cross-sectional plane and / or transversely, along a surface, in particular the top surface, of the second section (29, 29', 29'', 29'''), and wherein preferably the two ends of the strip of material (51') are fixed to the first section (7, 7', 7'', 7''''), in particular the two ends of the strip of material (51'), in particular in the assembled state, on different lateral sides of the retaining section (31, 31', 31'', 31'''), in particular at the level of the respective adjacent recess, on which the first section (7, 7', 7'', 7''') are fixed. [17] Assembly (1, 1', 1'', 1''') according to one of claims 5 to 16, wherein at least one locking element (53'') is formed on the second section in an area adjacent to the retaining section (31, 31', 31'', 31'''), and in the assembled state the retaining means (9, 9', 9'', 9''') is arranged to abut the locking element (53'') at least partially, thereby blocking displacement of the sensor unit (21, 21', 21'', 21''') relative to the heating unit (3, 3', 3'', 3''') along at least one direction, wherein preferably the locking element (53'') is formed by at least one, preferably two, in particular lateral, projections (33, 33', 55'') of the second section (29, 29', 29'', 29''') is formed, and wherein preferably the two projections (33, 33', 55'') are formed at opposite positions and / or on different lateral sides of the second section (29, 29', 29'', 29'''). [18] Assembly (1, 1', 1'', 1''') according to one of the preceding claims, wherein the assembly (1, 1', 1'', 1''') in the assembled state comprises a plurality of, in particular identically constructed, fastening arrangements (39, 39', 39'' 39'''), wherein preferably each of the fastening arrangements (39, 39', 39'' 39''') is formed by at least one holding means (9, 9', 9'', 9''') provided on the heating unit (3, 3', 3'', 3''') and at least one holding section (31, 31', 31'' 31''') provided by the sensor unit (21, 21', 21'', 21'''), and the respective holding section (31, 31', 31'' 31''') is located in at least one specific cross-sectional plane. at least partially between the heating unit (3, 3', 3'', 3''') and the respective holding means (9, 9', 9'', 9'''), and wherein preferably by means of the plurality of fastening arrangements (39, 39', 39'' 39'') a permissible fastening of the sensor unit (21, 21', 21'',21''') on the heating unit (3, 3', 3'', 3''') according to the Poka Yoke principle. [19] Method for assembling a module (1, 1', 1'', 1'''') comprising at least one heating unit (3, 3', 3'', 3'''') on which at least one holding means (9, 9', 9'', 9'''') is provided, and at least one sensor unit (21, 21', 21'', 21''') which provides at least one holding section (31, 31', 31'', 31'''), the method comprising providing the heating unit (3, 3', 3'', 3''') and the sensor unit (21, 21', 21'', 21''') and attaching the sensor unit (21, 21', 21'', 21''') to the heating unit (3, 3', 3'', 3''') forming at least one fastening arrangement (39, 39', 39'' 39''') such that in at least one specific cross-sectional plane the holding section (31, 31', 31'' 31''') is arranged at least partially between at least one part of the heating unit (3, 3', 3'', 3''') and the holding means (9, 9', 9'', 9'''). [20] Seat (201) for a vehicle, in particular motor vehicle, comprising an assembly (207) according to any one of claims 1 to 18. [21] Evaluation module (211) configured to evaluate a status signal (l1) of a seat belt of a motor vehicle and a sensor signal (l2) of a sensor unit (21, 21', 21'', 21''') of an assembly (1, 1', 1'', 1''') installed in the motor vehicle, in particular in a seat (201) according to claim 20, according to one of claims 1 to 18, and to generate at least partially based on a result of the evaluation a result signal (O) that is indicative of the fact that a person detected as present at least partially by means of the sensor unit (21, 21', 21'', 21''') has not yet properly fastened the seat belt.

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