Connection device
By using a shielding sleeve and sealing elements in the connection area between the exhaust heater and the connecting wire, the reliability and stability issues of the exhaust heater connection area are resolved, achieving shielding against external influences and stability of the electrical connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PRIME LTD
- Filing Date
- 2022-06-24
- Publication Date
- 2026-06-02
AI Technical Summary
In internal combustion engine exhaust systems, the connection area between the exhaust heater and the connecting wires is susceptible to corrosion, electrical short circuits, mechanical damage, and thermal load, leading to reliability and stability issues.
A connection device is designed to shield the exposed end sections of the thermal conductor element and the connecting wires with a shielding sleeve, and to achieve a stable electrical connection by combining force locking, form locking and material locking (such as brazing), and to prevent the penetration of liquids and contaminants by sealing elements.
It provides reliable protection for the connection area, preventing corrosion and mechanical damage, while ensuring the stability and insulation of the electrical connection to withstand vibration and thermal loads in vehicles.
Smart Images
Figure CN115528495B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a connection device for electrical connection of a thermal conductor element to an electrical connecting wire, which can be used in a particularly advantageous manner to connect an exhaust heater in the exhaust system of an internal combustion engine to a connecting wire leading to a power source in a vehicle. Background Technology
[0002] An exhaust heater is used in the exhaust system of an internal combustion engine in a motor vehicle to transfer heat, especially during the start-up phase of engine operation, to the circulating exhaust at relatively low exhaust temperatures and at low temperatures of the exhaust-guiding components and, in particular, exhaust treatment devices such as catalytic converters or particulate filters, thus bringing further downstream system regions in the exhaust stream, such as exhaust treatment devices, to operating temperature more quickly. Such exhaust heaters are typically electrically operated, requiring them to be electrically connected via connecting wires to a power source located in the vehicle.
[0003] The area of connection between the heat conductor element of such an exhaust heater and one or more connecting wires to which it is to be connected is subjected to external influences within the vehicle, which strongly load this area. On the one hand, media, such as brine, urea / water solution used as a reducing agent in the SCR catalytic converter arrangement, engine oil, and the like, can cause corrosion, electrical short circuits, or malfunctions, especially when such liquids can seep into the area of the open end of the connecting wire and thus migrate to the controller. On the other hand, this connection area is subjected to intense thermal loads based on the very high temperatures of the components guiding the exhaust during operation, as well as intense mechanical loads based on shocks and vibrations occurring within the vehicle. Summary of the Invention
[0004] The objective of this invention is to provide a connection device for the electrical connection of a thermal conductor element, particularly an exhaust heater in the exhaust system of an internal combustion engine, to an electrical connecting wire, wherein, in a structurally simple embodiment, the connection device provides reliable protection for the area where the thermal conductor element is connected to the connecting wire.
[0005] According to the invention, this task is solved by a connection device for electrically connecting a thermal conductor element, particularly an exhaust heater in an internal combustion engine exhaust system, to an electrical connecting wire, wherein the thermal conductor element has an exposed end section of the thermal conductor element-conductor element in the thermal conductor element connection end region to be electrically connected to the connecting wire, and the electrical connecting wire has an exposed end section of the connecting wire-conductor element in the connecting wire-connection end region to be electrically connected to the thermal conductor element, the connection device having:
[0006] -A connecting element that is electrically connected to the exposed end section of the thermal conductor element and the connecting wire -the exposed end section of the conductor element.
[0007] -A shielding sleeve surrounding the connecting wire-connecting end region, the thermal conductor element-connecting end region, and the connecting element connecting the exposed end section of the thermal conductor element-conductor element to the exposed end section of the connecting wire-conductor element, wherein the shielding sleeve is connected to the thermal conductor element in the thermal conductor element-connecting end region in the first sleeve end region and to the connecting wire in the connecting wire-connecting end region in the second sleeve end region, and shields the exposed end section of the thermal conductor element-conductor element, the exposed end section of the connecting wire-conductor element, and the connecting element connecting the exposed end section of the thermal conductor element-conductor element to the exposed end section of the connecting wire-conductor element from external influences.
[0008] In the connection device constructed according to the invention, an optimized construction is provided for each of the two functions—establishing a conductive connection on the one hand, shielding the area from external influences such as liquids, thermal loads, and mechanical loads on the other hand, and providing reliable electrical insulation—each independently of the other. The conductive connection is achieved by the connection element, which is shielded from external influences by the shielding sleeve and, in particular, electrically insulated from external sources. Similarly, the risk of liquid penetration into the connection area, which could cause damage or operational interference, is eliminated, such as the risk that thermal and / or mechanical loads present in a vehicle could lead to damage to the connection or breakage of the wiring.
[0009] It should be noted that, in the sense of this invention, in principle, the exposed end sections of conductive elements, such as thermal conductor elements-conductor elements or connecting wire-conductor elements, are non-electrically insulated and are therefore exposed end sections for providing electrical connections with other components.
[0010] For a stable connection with the connecting element, the thermal conductor element can be provided as a solid conductor substrate, such as wire, at least in its exposed end section.
[0011] To allow for flexible design of connecting wires, it is proposed that connecting wires—conductor elements—be provided in multiple single wires, at least in their exposed end sections.
[0012] For electrical connection with a thermal conductor element or a connecting wire, the connecting element may have a thermal conductor element receiving opening for receiving an exposed end section of the thermal conductor element and / or a connecting wire receiving opening for receiving an exposed end section of the connecting wire element.
[0013] To achieve a stable, yet still reliable, electrical connection, the exposed end section of the connecting wire-conductor element can be securely held in the connecting wire receiving opening by force-locking and / or form-locking generated in the region of the connecting wire receiving opening via the reshaping of the connecting element. Alternatively or additionally, the exposed end section of the connecting wire-conductor element can be secured in the connecting wire receiving opening by material locking, preferably welding (brazing).
[0014] Stable and reliable electrical connections can be further aided by the fact that the exposed end sections of the thermal conductor element-conductor element are held securely in the thermal conductor element receiving opening by force locking generated by pressing the exposed end sections of the thermal conductor element-conductor element into the thermal conductor element receiving opening, or by force locking generated by force locking or / and shape locking generated by the reshaping of the connecting element in the region of the thermal conductor element receiving opening, or / and the exposed end sections of the thermal conductor element-conductor element are held securely in the thermal conductor element receiving opening by material locking, preferably welding (brazing).
[0015] To facilitate pressing the exposed end section of the thermal conductor element into the connecting element, the connecting element may be slotted at least in the area where the thermal conductor element receives the opening.
[0016] To define the positioning of electrically connected conductor elements within a connecting element, it is proposed that the connecting element be tubularly constructed and have two conductor element receiving sections separated from each other by a push-in stop portion preferably formed via a modification of the connecting element, wherein one of the conductor element receiving sections provides a thermal conductor element receiving opening and the other conductor element receiving section provides a connecting wire receiving opening.
[0017] For a sealed and mechanically stable connection between the shielding sleeve and the heat conductor element, the shielding sleeve can be connected in the first sleeve end section to the outer casing surrounding the heat conductor element in the heat conductor element-connection end region by material locking, preferably brazing or / and fusion welding.
[0018] For a mechanically stable connection to a normally flexible connecting wire, and also for a seal against the penetration of liquids or contaminants, at least one sealing element that surrounds the connecting wire and is enclosed by the shielding sleeve can be provided in the second sleeve end section of the shielding sleeve.
[0019] When using such a sealing element, it is proposed that the at least one sealing element is held between the shielding sleeve and the connecting wire by a modified compression of the shielding sleeve in the end section of the second sleeve, or / and the at least one sealing element is formed in an annular shape, or / and the at least one sealing element is constructed of an elastic material, preferably a rubber material.
[0020] The present invention further relates to an exhaust heating arrangement structure for an exhaust device for an internal combustion engine, having a heat conductor element that can be guided by an exhaust circulation flowing in an exhaust guide volume, wherein the heat conductor element is guided through a wall surrounding and defining the exhaust guide volume in at least one guide passage region and is connected to a connecting wire outside the exhaust guide volume by means of a connecting device constructed according to the present invention in at least one heat conductor element-connection end region, preferably in two heat conductor element-connection end regions.
[0021] The present invention also relates to an exhaust system for an internal combustion engine, for example, in a vehicle, the exhaust system comprising an exhaust heating arrangement constructed according to the present invention. Attached Figure Description
[0022] The invention will now be described in detail with reference to the accompanying drawings. Wherein:
[0023] Figure 1 A schematic diagram of a connection device is shown for electrically connecting a heat conductor element to a connecting wire in the exhaust system of an internal combustion engine;
[0024] Figure 2 Shown in Figure 1 A longitudinal sectional view of one design form of the connecting device shown in the schematic diagram;
[0025] Figure 3 This illustrates an alternative design for the connecting device, corresponding to... Figure 2 The illustration. Detailed Implementation
[0026] exist Figure 1 The schematic diagram shows a connection device 10, which is used in the exhaust system of an internal combustion engine, generally indicated by 11, to establish a conductive and mechanically stable connection between a heat conductor element 12 and a connecting wire 14 that connects the heat conductor element 12 to a power source in the vehicle, such as a battery or on-board power system.
[0027] The heat conductor element 12 is an important component of the exhaust heater 15 disposed in the exhaust flow volume 16 through which exhaust A flows, through which heat can be transferred to the circulating exhaust A when needed.
[0028] exist Figure 1The heat conductor element 12, shown only by way of example, is guided through the wall 20 of the exhaust guide volume 16, which is surrounded by an exhaust guide member, such as an exhaust pipe or the like, in the region of the guide passage 18. At least in the region of the wall 20 guided by the guide passage 18, the heat conductor element 12 has an outer casing 22 constructed, for example, of high-quality steel or other metallic material. Inside the outer casing 22, with an electrically insulating material 24, such as pressed ceramic powder or the like, placed in the middle, the heat conductor element 12 is advantageously configured as a single solid conductor matrix, such as a wire, heat conductor element-conductor element 28, in the region of the guide passage wall of the heat conductor element 12, and which is also commonly referred to as the cold end 26. Inside the exhaust guide member or in the exhaust flow volume 16, a heat conductor 29 of the heat conductor element 12, which heats when a voltage is applied and a current flows therethrough, is connected to the heat conductor element-conductor element 28. The heat conductor 29 may be surrounded by an electrically insulating material 24 or an outer casing 22 over its entire length extending in the exhaust flow volume 16. In an alternative design, the heat conductor 29 may be exposed in its main extension region within the exhaust flow volume 16, i.e., not surrounded by the outer casing 22 and not by the insulating material 24, in order to thereby improve thermal interaction with the exhaust gas A. That is, the outer casing 22 or the electrically insulating material 24 may be limited to a length region of the heat conductor element 12 in which the heat conductor element is guided through the wall 20 with its cold end 26.
[0029] The thermal conductor element 12 is electrically and mechanically connected to the connecting wire-connection region 32 of the connecting wire 14 in its thermal conductor element-connection region 30 outside the exhaust flow volume 16 by means of the connecting device 10. The conductive connection is achieved by, for example, a tubular or sleeve-shaped connecting element 34, which connects the exposed, i.e., non-electrically insulated end section 36 of the thermal conductor element-conductor element 28 to the exposed, i.e., equally non-electrically insulated end section 38 of the connecting wire-conductor element 40.
[0030] While a certain mechanical connection is also provided between the thermal conductor element 12 and the connecting wire 14 via the connecting element 34, the mechanical connection between the thermal conductor element 12 and the connecting wire 14, which accommodates the main load during operation, is provided by a shielding sleeve 44 that is fixedly connected not only to the outer casing 22 of the thermal conductor element 12 but also to the outer casing 42 of the connecting wire 14 in the manner described above. This shielding sleeve 44 not only provides a stable mechanical connection between the thermal conductor element 12 and the connecting wire 14 but also provides shielding for the conductive connection or system areas set for this purpose in the areas where the conductive connection is achieved in the thermal conductor element-connection end area 30 and the connecting wire-connection end area 32. The shielding sleeve prevents liquids, such as water or salt water, urea / water solution, engine oil, or the like, from reaching the exposed end areas 36, 38, and also prevents contaminants from reaching these areas. Therefore, there is no possibility that water in the open end area of the connecting wire 14 can penetrate into the connecting wire and travel through the connecting wire 14 to the controller, where it could cause damage or malfunction. Meanwhile, the shielding sleeve 44 provides external electrical insulation and thus prevents short circuits. Furthermore, the area of electrical connection is thermally shielded, particularly by the thermal shielding provided by the thermally conductive element-conductor element 28, which provides the cold end 26. This is because, when voltage and current are applied through the thermally conductive element 12, the thermally conductive element-conductor element 28 itself, which is guided through the wall 20, is only slightly heated.
[0031] Figure 2 One construction of such a connecting device 10 is shown in more detail. Figure 2 The exposed end regions 36, 38 of the heat conductor element-conductor element 28 and the connecting wire-conductor element 40 can be seen. Because the connecting wire 14 is typically constructed flexibly so that it can be guided in a suitable manner through the vehicle, the connecting wire-conductor element 40 is preferably constructed of multiple individual cores or wires (metal wires) 46.
[0032] The connecting element 34 is constructed of a highly conductive metallic material and has a substantially tubular structure. The connecting element 34 is... Figure 2 A thermal conductor element receiving opening 50 is provided in the conductor element receiving section 48 shown on the left, extending substantially over the entire conductor element receiving section 48, and... Figure 2 The conductor element receiving section 52, visible on the right, provides a connecting wire receiving opening 54 that extends substantially along its entire length. A push-in stop 57 is formed, for example by a recessed portion, in the region central to the longitudinal direction of the connecting element 34; the push-in stop predetermines the maximum insertion depth of the thermal conductor element-conductor element 28 or the connecting wire-conductor element 40.
[0033] To establish an electrical connection using connecting element 34, the connecting element can be pushed onto the exposed end section 36 of the thermal conductor element-conductor element 28 with its conductor element receiving section 48. Here, for example, it can be configured such that, for good electrical contact, the thermal conductor element-conductor element 28 is pressed into the thermal conductor element receiving opening 50. To compensate for manufacturing tolerances, connecting element 34 can be configured with at least a slot in its conductor element receiving section 48. For example, connecting element 34 can be configured with a slot extending longitudinally in the conductor element receiving section 48 and opening toward its free end.
[0034] If the thermal conductor element-conductor element 28 is pressed into the connecting element 34 with its end section 36, a reliable electrical contact between the thermal conductor element-conductor element 28 and the connecting element 34 can be achieved solely based on the force-locking produced therein. Alternatively or additionally, a reliable electrical contact can also be achieved by pressing the thermal conductor element-conductor element 28 into the connecting element 34, i.e., after the thermal conductor element-conductor element 28 is introduced, and if necessary pressed into the connecting element 34, it is pressed in the area of the conductor element receiving section 48, for example, by a crimping process, thereby creating a reliable electrical contact between the thermal conductor element-conductor element 28 and the connecting element 34 by force-locking in this modification of the connecting element 34 and by form-locking in the case of a corresponding strong modification.
[0035] The electrical contact between the thermal conductor element-conductor element 28 and the connecting element 34 can also be reliably constructed alternatively or additionally, i.e., the two components are connected to each other by material locking, especially by brazing. For this purpose, the thermal conductor element-conductor element can be surrounded by brazing material in its exposed end section 36, which is to be received in the thermal conductor element receiving opening 50. The end section 36 is then inserted, for example, pressed into the conductor element receiving section 48. The brazing material then melts and thus creates a brazed connection that also establishes a mechanical connection between the connecting element 34 and the end section 36.
[0036] A reliable electrical connection between the connecting element 34 and the end section 38 of the connecting wire-conductor element 40 can also be achieved through material locking and / or form locking and / or force locking. To provide material locking, after the core wire or wire 46 extending from the outer casing 42 in the end section 38 is tightened, brazing material can be applied to the end section 38. The end section 38 can then be inserted into the conductor element receiving section 52 until it is abutted against the push-in stop 57. By heating, the brazing material can melt and thereby create a conductive connection.
[0037] Alternatively or additional to the conductive connection, after the end section 38, which may be surrounded by brazing material if necessary, is introduced, the connecting element 34 may be pressed into its conductor element receiving section 52, for example, during the crimping process, thereby creating a force lock between the connecting element 34 and the end section 38 of the connecting wire-conductor element 40 by pressing them together, and also creating a form lock between the connecting element 34 and the end section 38 of the connecting wire-conductor element 40.
[0038] After the two conductor elements 28 and 40 have been electrically connected to each other via the connecting element 34, the shielding sleeve 44 is pushed onto the area where the thermal conductor element 12 is connected to the connecting wire 14. For this purpose, the shielding sleeve 44 can be pushed onto the connecting wire 14, for example, before the connecting wire 14 is connected to the connecting element 34, so that the shielding sleeve 44 can then be positioned such that the first sleeve end section 56 surrounds the thermal conductor element 12 or outer cover 22 in the thermal conductor element-connection area 30 and the second sleeve end section 58 surrounds the connecting wire 14 or outer cover 42 in the connecting wire-connection area 32.
[0039] Preferably, a shielding sleeve 44 constructed of a metallic material is then connected to the heat conductor element 12 or the outer casing 22 via a material locking connection. For this purpose, for example, the shielding sleeve 44 is provided with Figure 2 Prior to the positioning shown, the outer cover 22 may be covered with brazing material in the length region where it is subsequently overlapped by the first sleeve end section 56. After the shielding sleeve 44 is pushed onto the circumferentially brazing material-covered area of the outer cover 22 with its first sleeve end section 56, the brazing material can be melted by heating, thus establishing a mechanically stable connection between the heat conductor element 12 and the shielding sleeve 44 and preventing the penetration of contaminants or liquids.
[0040] In an alternative or additionally provided material-locking connection, a weld 60, preferably completely surrounding the outer casing 22, can be formed, for example, by laser welding, which connects the end section 56 of the first sleeve to the outer peripheral surface of the outer casing 22 in the region on its end side.
[0041] In the second sleeve end section 58, an annular, elastically deformable sealing element 62, constructed of, for example, rubber or a rubber-like material, is positioned between the second sleeve end section and the connecting wire-connection area 32 or the outer casing 42 of the connecting wire 14. This sealing element can also be pushed onto the connecting wire 14 before establishing an electrical connection, so that the sealing element then only needs to move along the outer casing 42 to be positioned... Figure 2In the positioning shown, the sealing element surrounds the connecting wire 14 in the connecting wire-connecting region 32 and is further surrounded on its outer side by the second sleeve end section 58 of the shielding sleeve 44. The sealing element 62 is then radially compressed about the longitudinal central axis L of the shielding sleeve 44 by a radially inward modification of the shielding sleeve 44 in the second sleeve end section 58. Here, by the radially outward support on the second sleeve end section 58, the sealing element 62 is thus strongly radially inwardly pressed against the outer circumferential surface of the outer casing 42, thereby creating a seal between the shielding sleeve 44 and the connecting wire 14 that is both impermeable to contaminants and liquids and mechanically stable.
[0042] In the manner described above, after the exhaust heater 15 is integrated into the exhaust flow volume 16 and the heat conductor element 12 is guided through the wall 20, the heat conductor element 12 can be mechanically and reliably electrically connected to the connecting wire 14. Here, the dimensions of the connection device 10 can be determined to suit both the given structural conditions of the vehicle and the current to be guided, thus enabling its use, particularly in high-voltage applications. Because the conductive or current-guiding components are shielded from the outside in their interconnected areas by the shielding sleeve 44, a high degree of safety is also ensured. The connections from the shielding sleeve 44 to the heat conductor element 12 and the connecting wire 14 are made in such a way that a very stable and reliable connection is achieved, taking into account the structural materials used respectively. In the area of the heat conductor element 12, this connection can be achieved through material locking, since both the outer casing 22 and the shielding sleeve 44 are preferably constructed of metallic material. In the area where the outer casing 42 is typically constructed of plastic material and, similarly, the core wire or wire 46 extending inside the outer casing 42 is a flexible connecting conductor 14, a durable seal against contaminants and liquids, and especially an airtight seal, is achieved by using a resiliently deformable sealing element 62 that presses against the outer casing 42. This seal also compensates for component tolerances or thermal expansion. Because a stable mechanical connection between the thermal conductor element 12 and the connecting conductor 14 is ensured by the shielding sleeve 44, the electrical connection provided by the connecting element 34 can be optimally configured with respect to the electrical conductors, although the electrical connection provided by the connecting element can also accommodate a certain mechanical load.
[0043] Furthermore, in order to connect to the two electrodes of a voltage source or voltage feed system, the thermal conductor element 12 can be connected to the corresponding connecting wires 14 in the manner described above and shown in the figure in its two end regions.
[0044] An alternative construction of such a connecting device 10 is as follows: Figure 3 As shown in the figure. The construction form corresponds, in an important respect, to prior information regarding... Figure 2 The aforementioned construction form will then be discussed only in relation to... Figure 2 The differences lie in the construction of the connecting element 44. The connecting element is shaped in its conductor element receiving section 48, to which it is to be connected, such that the connecting element surrounds the end section 36 only on a portion of its circumference. For example, the area of the connecting element 34, provided as a sheet metal form, that partially surrounds the end section 36 thus provides a heat conductor element receiving opening 50 formed in the conductor element receiving section 48, which in this construction is open in the circumferential region of the conductor element receiving section 48. For example, the conductor element receiving section 48 may surround the end section 36 in approximately 50 to 75% of its circumference. The fixation of the end section 36 to the conductor element receiving section 48 or the connecting element 34 can be as previously stated regarding... Figure 2 As described, it is performed by material locking and / or form locking and / or force locking.
[0045] exist Figure 3 The connecting element 34 shown can be shaped in the region of its conductor element receiving section 52 such that the connecting element surrounds the end section 38 of the connecting wire-conductor element 40 in opposite circumferential directions with a substantially M-shaped or W-shaped circumferential profile, thereby providing a connecting wire receiving opening 54 in the conductor element receiving section 52. By pressing the M-shaped or W-shaped structures together, the connecting element 34 can be pressed into the end section 38 or the core wire or wire 46 providing the end section in the region of its receiving end section 38, i.e., in the region of the connecting wire receiving opening 54. This holding together is substantially achieved by force locking, but can also be assisted by material locking, which can be achieved by the prior surrounding of the end section 38 with solder material and the melting of the solder material after the reshaping of the connecting element 34.
Claims
1. An exhaust heating arrangement structure for an exhaust system of an internal combustion engine, having a heat-conducting element (12) capable of circulating exhaust (A) within an exhaust guide volume (16), wherein, The thermal conductor element (12) is guided through a wall (20) surrounding and defining the exhaust guide volume (16) in a region of at least one guide passage (18) and connected to an electrical connecting wire (14) outside the exhaust guide volume (16) by means of a connecting device (10) in at least one thermal conductor element-connecting end region (30), wherein the thermal conductor element (12) has an exposed end section (36) of a thermal conductor element-conductor element (28) in the thermal conductor element-connecting end region (30) electrically connected to the electrical connecting wire (14) and the electrical connecting wire (14) has an exposed end section (38) of a connecting wire-conductor element (40) in the connecting wire-connecting end region (32) electrically connected to the thermal conductor element (12), wherein the connecting device for electrically connecting the thermal conductor element (12) to the electrical connecting wire (14) has: - Connecting element (34) electrically connected to the exposed end section (36) of the thermal conductor element-conductor element (28) and the exposed end section (38) of the connecting wire-conductor element (40). -A shielding sleeve (44) surrounding the connecting wire-connecting end region (32), the thermal conductor element-connecting end region (30), and the connecting element (34) connecting the exposed end section (36) of the thermal conductor element-conductor element (28) to the exposed end section (38) of the connecting wire-conductor element (40), wherein the shielding sleeve (44) is connected in the first sleeve end region (56) to the thermal conductor element (12) in the thermal conductor element-connecting end region (30) and in the second sleeve end region (58) to the connecting wire (14) in the connecting wire-connecting end region (32) and surrounding the exposed end section (36) of the thermal conductor element-conductor element (28), the exposed end section (38) of the connecting wire-conductor element (40), and the exposed end section (36) of the thermal conductor element-conductor element (28). The connecting element (34) that connects the segment (36) to the exposed end section (38) of the connecting wire-conductor element (40) is shielded against external influences. The thermal conductor element (12) has an outer cover (22) made of metal material at least in the region of the guiding passage wall (20) by means of the guiding passage part (18). In the region of the guiding passage wall (20) of the thermal conductor element (12) by means of the guiding passage part (18), the thermal conductor element-conductor element (28) is disposed in the outer cover (22) with an electrically insulating material (24) placed in the middle. The shielding sleeve (44) is connected in the first sleeve end section (56) to the outer cover (22) of the thermal conductor element (12) that surrounds the thermal conductor element-conductor element (28) in the thermal conductor element-connecting end region (30) by material locking.
2. The exhaust heating arrangement structure according to claim 1, characterized in that, The thermal conductor element-conductor element (28) is provided as a solid conductor substrate at least in its exposed end section (36), and / or the connecting wire-conductor element (40) is provided as a plurality of single wires (46) at least in its exposed end section (38).
3. The exhaust heating arrangement structure according to claim 1 or 2, characterized in that, The connecting element (34) has a thermal conductor element receiving opening (50) for receiving the exposed end section (36) of the thermal conductor element-conductor element (28) and / or a connecting wire receiving opening (54) for receiving the exposed end section (38) of the connecting wire-conductor element (40).
4. The exhaust heating arrangement structure according to claim 3, characterized in that, The exposed end section (38) of the connecting wire-conductor element (40) is fixedly held in the connecting wire receiving opening (54) by force locking or / and shape locking generated in the region of the connecting wire receiving opening (54) via the reshaping of the connecting element (34).
5. The exhaust heating arrangement structure according to claim 3, characterized in that, The exposed end section (38) of the connecting wire-conductor element (40) is held securely in the connecting wire receiving opening (54) by material locking.
6. The exhaust heating arrangement structure according to claim 5, characterized in that, The exposed end section (38) of the connecting wire-conductor element (40) is fixedly held in the connecting wire receiving opening (54) by brazing.
7. The exhaust heating arrangement structure according to claim 3, characterized in that, The exposed end section (36) of the thermal conductor element-conductor element (28) is fixedly held in the thermal conductor element receiving opening (50) by force locking generated by pressing the exposed end section (36) of the thermal conductor element-conductor element (28) into the thermal conductor element receiving opening (50) or / and by force locking or / and shape locking generated by the reshaping of the connecting element (34) in the region of the thermal conductor element receiving opening (50).
8. The exhaust heating arrangement structure according to claim 3, characterized in that, The exposed end section (36) of the thermal conductor element (28) is held securely in the thermal conductor element receiving opening (50) by material locking.
9. The exhaust heating arrangement structure according to claim 8, characterized in that, The exposed end section (36) of the thermal conductor element (28) is fixedly held in the thermal conductor element receiving opening (50) by brazing.
10. The exhaust heating arrangement structure according to claim 3, characterized in that, The connecting element (34) is slotted at least in the area of the thermal conductor element receiving opening (50).
11. The exhaust heating arrangement structure according to claim 3, characterized in that, The connecting element (34) is tubularly configured and has two conductor element receiving sections (48, 52) that are separated from each other by a push-in stop (57), wherein one of the conductor element receiving sections (48, 52) provides a thermal conductor element receiving opening (50) and the other of the conductor element receiving sections (48, 52) provides a connecting wire receiving opening (54).
12. The exhaust heating arrangement structure according to claim 11, characterized in that, The push-in stop (57) is formed by modifying the connecting element (34).
13. The exhaust heating arrangement structure according to claim 1 or 2, characterized in that, In the second sleeve end section (58) of the shielding sleeve (44), at least one sealing element (62) is provided that surrounds the connecting wire (14) and is surrounded by the shielding sleeve (44).
14. The exhaust heating arrangement structure according to claim 13, characterized in that, The at least one sealing element (62) is held between the shielding sleeve (44) and the connecting wire by compression through a modification of the shielding sleeve (44) in the end section (58) of the second sleeve, or / and the at least one sealing element (62) is formed in an annular shape.
15. The exhaust heating arrangement structure according to claim 13, characterized in that, The at least one sealing element (62) is constructed of an elastic material.
16. The exhaust heating arrangement structure according to claim 15, characterized in that, The at least one sealing element (62) is constructed of rubber material.
17. An exhaust system for an internal combustion engine, said exhaust system having an exhaust heating arrangement structure according to any one of claims 1 to 16.