Connection arrangement, housing arrangement and vehicle

Abstract

A connection arrangement (20) comprises a first extruded profile part (21), a second extruded profile part (22), a seal (30), a screw connection (40), a first housing part (91) and a second housing part (92), wherein the first housing part (91) is connected to the first extruded profile part (21) by a first weld connection (93), wherein the second housing part (92) is connected to the second extruded profile part (22) by a second weld connection (94), wherein the screw connection (40) has a screw (41) and an internal threaded part (42) and is configured to detachably connect the first extruded profile part (21) to the second extruded profile part (22) in a screwed state, wherein the seal (30) is in the screwed state of the screw connection (40) - is attached to the first extruded profile part (21) and rests against the second extruded profile part (22), or - is attached to the second extruded profile part (22) and rests against the first extruded profile part (21).

Description

[0001] The invention relates to a connection arrangement, a housing arrangement and a vehicle.

[0002] It is common practice to attach a lid and a base to an extruded profile using FDS screws. FDS stands for "flow drill screws," and they are also known as flow-formed screws. They allow for thermomechanical thread forming and screwing in a single operation. For sealing, a sealant, such as butyl rubber, is applied in a line. This is also referred to as a butyl sealant line. FDS screws cannot be removed without damaging them, and sealing problems can occur.

[0003] EP 2 468 609 B2 shows a screwable extruded profile arrangement.

[0004] DE 10 2019 124 066 B4 shows two extruded profiles welded together.

[0005] DE 10 2020 209 654 B4 shows a housing for an energy storage device in a hybrid design made of extruded profiles.

[0006] DE 10 2020 133 182 A1 shows a storage housing for an energy storage device.

[0007] DE 297 22 910 U1 is considered the closest prior art and discloses a car body for a motor vehicle with a chassis assembled from modules, wherein the car body consists of two side frame sections and cross members connecting these to each other in the transverse direction of the vehicle. The side frame sections consist of a single longitudinal section of extruded profile material joined to form a continuous and closed frame section. Side frame sections are connected to the engagement strip, which engages between two profile webs, by means of screw bolts, wherein the screw bolts, on the one hand, penetrate the wall of the profile chamber associated with the profile webs and, on the other hand, can be inserted into the opposite wall of the profile chamber via an opening in the latter.

[0008] DE 10 2018 128 004 A1 shows an axle carrier of a two-track vehicle with a shear field formed by an extruded profile, with screw connections provided.

[0009] DE 689 03 633 T2 shows a frame structure with extruded parts, which is suitable for use as a chassis frame of a road vehicle.

[0010] It is therefore an object of the invention to provide a new connection arrangement, a new housing arrangement and a new vehicle.

[0011] This problem is solved by the subject matter of claim 1 and the dependent claims 11 and 14.

[0012] A connection arrangement comprises a first extruded profile part, a second extruded profile part, a seal, a screw connection, a first housing part, and a second housing part, wherein the first housing part is connected to the first extruded profile part by a first weld, wherein the second housing part is connected to the second extruded profile part by a second weld, wherein the screw connection has a screw and an internal threaded part and is configured to detachably connect the first extruded profile part to the second extruded profile part in a screwed state, wherein the seal is located in the screwed state of the screw connection. - is attached to the first extruded profile part and rests against the second extruded profile part, or - is attached to the second extruded profile part and rests against the first extruded profile part.

[0013] The connection design allows for non-destructive disassembly and improved sealing. Positioning the connection between the two extruded profile sections ensures a secure bond. Welding the housing parts results in a secure, leak-proof, and durable connection.

[0014] According to a preferred embodiment, the seal is made at least partially of an elastic material. This enables a good seal.

[0015] According to a preferred embodiment, the seal can be detached non-destructively from the first and second extruded profile sections when the screw connection is not tightened. This facilitates replacement of the seal.

[0016] According to a preferred embodiment, the first extruded profile section defines at least two chambers in the profile, comprising a first chamber and a second chamber, wherein the first weld joint is formed in the region of a wall of the first chamber, and wherein the screw has a screw head that exerts a first force on a wall of the second chamber. This makes a leak in the second chamber less critical for the first chamber, and / or vice versa.

[0017] According to a preferred embodiment, the screw extends through the second chamber. This allows the screw to be pushed through the second chamber from the outside.

[0018] According to a preferred embodiment, the second extruded profile section defines at least two chambers in the profile, comprising a third chamber and a fourth chamber, wherein the second weld joint is formed in the region of a wall of the third chamber, and wherein the internally threaded section exerts a second force on a wall of the fourth chamber. This makes a leak in the fourth chamber less critical for the third chamber, and / or vice versa. A functional separation is thus achieved.

[0019] According to a preferred embodiment, - the first extruded profile part or - the second extruded profile part has an advantage, the seal is positioned on at least two opposite sides of the projection. This results in a good connection and a good seal.

[0020] According to a preferred embodiment, the seal has a groove, with the projection extending into the groove. This can increase the sealing effect.

[0021] According to a preferred embodiment, the projection extends towards the opposite second extruded profile section or first extruded profile section. This enables secure positioning of the seal by the normal force acting on the seal.

[0022] According to a preferred embodiment, the seal in the profile has a fifth chamber, wherein the fifth chamber is arranged at least partially in a region between the first extruded profile section and the second extruded profile section. This improves the spring-load capacity and the sealing performance.

[0023] A housing assembly features such a connection arrangement, with an interior space defined between the first and second housing parts. The detachable connection arrangement allows the interior space to be opened and closed, ensuring a good seal. For example, a corresponding first and second extruded profile part can be provided for each side of the housing assembly, with the first and second extruded profile parts being connected to each other.

[0024] According to a preferred embodiment, the seal is located closer to the interior than the screw connection. This eliminates the need for complex sealing measures in the area of ​​the screw connection.

[0025] According to a preferred embodiment, the interior containing the connection arrangement has an IP protection rating of IP55 or higher. A high IP protection rating is achievable with this connection arrangement.

[0026] The vehicle features such a housing arrangement. This facilitates good maintenance.

[0027] According to a preferred embodiment, a vehicle battery is arranged within the housing assembly. This allows the vehicle battery to be well protected and easily maintained.

[0028] Further details and advantageous embodiments of the invention will become apparent from the exemplary embodiments described below and illustrated in the drawing, as well as from the dependent claims. The drawing shows: Fig. 1 in a schematic representation a vehicle with a housing arrangement which has a connecting arrangement.

[0029] In the following, identical or similarly functioning parts are designated with the same reference symbols and are usually described only once. The description builds upon itself across figures to avoid unnecessary repetition.

[0030] Fig. Figure 1 shows a schematically indicated vehicle 10.

[0031] The vehicle 10 has a housing arrangement 15 in which a schematically indicated vehicle battery 16 is preferably arranged.

[0032] The housing arrangement 15 has a connection arrangement 20.

[0033] The connection arrangement 20 comprises an extruded profile part 21, an extruded profile part 22, a seal 30, a screw connection 40, a housing part 91 and a housing part 92.

[0034] An interior space 17 is defined between housing part 91 and housing part 92. Preferably, the vehicle battery 16 is arranged in the interior space 17.

[0035] The housing part 91 is connected to the extruded profile part 21 by a welded connection 93.

[0036] The housing part 92 is connected to the extruded profile part 22 by a welded connection 94.

[0037] The extruded profile parts 21, 22 are made, for example, of aluminium, of an aluminium alloy or of a plastic.

[0038] The welded joints 93 and 94 are preferably circumferential to ensure a high degree of tightness. They therefore run around the entire interior space 17. In other words, the welded joints 93 and / or 94 have a circumferential weld seam.

[0039] The screw connection 40 comprises a screw 41 and an internally threaded part 42 and is designed to detachably connect the extruded profile part 21 to the extruded profile part 22 in a screwed-in state. The internally threaded part 42 can be designed, for example, as an internally threaded sleeve or as a nut.

[0040] The seal 30, when the screw connection 40 is screwed in, is either placed on the extruded profile part 21 and rests against the extruded profile part 22, or it is placed on the extruded profile part 22 and rests against the extruded profile part 21.

[0041] The seal 30 is preferably made, at least in sections, of an elastic material. Suitable materials include, for example, elastomers such as... - Natural rubber, - Styrene-butadiene rubber, - Ethylpropylene diene rubber, - Nitrile rubber and - Butyl rubber.

[0042] The seal 30 can also be referred to as a push-on seal or push-in seal.

[0043] The seal 30 can be detached from the extruded profile part 21 without damage when the screw connection 40 is not tightened. This is advantageous for maintenance, as the seal 30 can be easily replaced during servicing. In the exemplary embodiment, after loosening the screw connection 40, the extruded profile part 21 is removed, and then the seal 30 can be pulled off the extruded profile part 21.

[0044] Such a seal 30 is designed to be fitted or slid onto a component to ensure a reliable seal between two or more components. It provides a seal against liquids, gases, or dirt.

[0045] The seal 30 preferably has at least some of the following properties: - Elasticity: The use of an elastic material such as rubber or plastic allows for flexible adaptation to the contours of the components. - Easy handling: The seal can be installed by simply sliding or clamping it on, without the need for complicated fastening methods. - Reassembly: The 30 gasket allows for easy disassembly and reuse, as it is not damaged by its elastic properties. - Sealing effect: The shape of the seal 30 (for example with lips or ribs) ensures a good seal, even with uneven surfaces or manufacturing tolerances of the components. - Adaptability: It is suitable for various geometries, e.g. round, rectangular or profiled surfaces.

[0046] In the exemplary embodiment, the extruded profile part 22 has a projection 23, and the seal 30 is placed on the projection 23.

[0047] The seal 30 is arranged on two opposite sides 231, 232 of the projection 23. This provides a secure hold and protection against the seal 30 tilting sideways.

[0048] The seal 30 has a groove 31, and the projection 23 extends into the groove 31. This allows for easy assembly and a good sealing effect.

[0049] The projection 23 extends towards the opposite extruded profile part 21. This enables good absorption of normal forces by the seal 30.

[0050] Preferably, the seal 30 has a chamber 32 in the profile.

[0051] The term chamber encompasses both an open chamber and a closed chamber.

[0052] The chamber 32 is preferably arranged, at least partially, in a region between the extruded profile part 21 and the extruded profile part 22. The chamber allows the seal 30 to compress and thus provides a greater spring travel.

[0053] The seal 30 is preferably located closer to the interior 17 than the screw connection 40. This allows for a better defined geometric distance between the two extruded profile parts 21, 22 than in an arrangement where the seal 30 is located outside of the screw connection 40. Furthermore, this arrangement eliminates the need for sealing the screw connection 40.

[0054] The extruded profile part 21 defines at least two chambers 211, 212 in the profile.

[0055] The welded joint 93 is formed in the area of ​​a wall 213 of the chamber 211, and the screw 40 has a screw head 411 which exerts a force F1 on a wall 214 of the second chamber 212.

[0056] In addition to the screw head 411, the screw 40 has a threaded area 412.

[0057] A leak in the area of ​​the screw connection 40 has less of an effect on the tightness of the entire arrangement due to the different chambers 211, 212 than with a single chamber.

[0058] Preferably, the screw 40 extends through the chamber 211.

[0059] The extruded profile part 22 defines at least two chambers 221, 222 in the profile, in the exemplary embodiment three chambers 221, 222, 223. The welded connection 93 is preferably formed in the area of ​​a wall 225 of the chamber 221, and the internally threaded part 42 exerts a force F2 on a wall 226 of the chamber 222.

[0060] A leak in the area of ​​the internal thread part 42 has less of an effect on the tightness of the entire arrangement due to the different chambers 221, 222 than with a single chamber.

[0061] The interior 17 preferably has an IP protection class of IP55 or higher due to the connection arrangement 20.

[0062] IP protection classes (also known as Ingress Protection) are an internationally standardized classification according to the EN 60529 standard (DIN 40050). They describe the degree of protection an enclosure offers against the ingress of foreign objects (e.g., dust) and water. The IP classification always consists of the letters IP followed by two digits: The first digit relates to protection against foreign objects and the second digit to protection against water.

[0063] The IP55 protection class provides protection against the ingress of dust and protection against water jets from any angle.

[0064] Preferably, the interior space 17 has a minimum protection class of IP68.

[0065] Naturally, various variations and modifications are possible within the scope of the present invention.

Claims

[1] Connection arrangement (20) comprising a first extruded profile part (21), a second extruded profile part (22), a seal (30), a screw connection (40), a first housing part (91) and a second housing part (92), wherein the first housing part (91) is connected to the first extruded profile part (21) by a first welded joint (93), wherein the second housing part (92) is connected to the second extruded profile part (22) by a second welded connection (94), wherein the screw connection (40) has a screw (41) and an internal thread part (42) and is designed to detachably connect the first extruded profile part (21) with the second extruded profile part (22) in a screwed state, wherein the seal (30) is in the screwed state of the screw connection (40) - is attached to the first extruded profile part (21) and rests against the second extruded profile part (22), or - is attached to the second extruded profile part (22) and rests against the first extruded profile part (21). [2] Connection arrangement (20) according to claim 1, characterized by , that the seal (30) is formed at least partially from an elastic material. [3] Connection arrangement (20) according to one of the preceding claims, characterized by , that the seal (30) can be detached from the first extruded profile part (21) and from the second extruded profile part (22) without damage when the screw connection (40) is not screwed together. [4] Connection arrangement (20) according to one of the preceding claims, characterized by, that the first extruded profile part (21) defines at least two chambers (211, 212) in the profile, which comprise a first chamber (211) and a second chamber (212), wherein the first welded joint (93) is formed in the region of a wall (213) of the first chamber (211), and wherein the screw (41) has a screw head (411) exhibits a wall (214) of the second chamber (212) which is subjected to a first force (F1). [5] Connection arrangement (20) according to claim 4, characterized by , that the screw (41) extends through the second chamber (212). [6] Connection arrangement (20) according to one of the preceding claims, characterized by, that the second extruded profile part (22) defines at least two chambers (221, 222) in the profile, which comprise a third chamber (221) and a fourth chamber (222), wherein the second welded joint (94) is formed in the area of ​​a wall (225) of the third chamber (221), and wherein the internally threaded part (42) applies a second force (F2) to a wall (226) of the fourth chamber (222). [7] Connection arrangement (20) according to one of the preceding claims, characterized by , that - the first extruded profile section (21) or - the second extruded profile part (22) has a projection (23), wherein the seal (30) is arranged on at least two opposite sides (231, 232) of the projection (23). [8] Connection arrangement (20) according to claim 7, characterized by , that the seal (30) has a groove (31) wherein the projection (23) extends into the groove (31). [9] Connection arrangement (20) according to claim 7 or 8, characterized by , that the projection (23) extends in the direction of the opposite second extruded profile part (22) or first extruded profile part (21). [10] Connection arrangement (20) according to any one of the preceding claims, characterized by , that the seal (30) in the profile has a fifth chamber (32), wherein the fifth chamber (32) is arranged at least partially in a region between the first extruded profile part (21) and the second extruded profile part (22). [11] Housing arrangement (15) comprising a connection arrangement (20) according to one of the preceding claims, wherein an interior space (17) is defined between the first housing part (91) and the second housing part (92). [12] Housing arrangement (15) according to claim 11, characterized by , that the seal (30) is formed closer to the interior (17) than the screw connection (40). [13] Housing arrangement (15) according to claim 11 or 12, characterized by , that the interior (17) with the connection arrangement (20) has an IP protection class of IP55 or higher. [14] Vehicle (10) comprising a housing arrangement (15) according to any one of claims 11 to 13. [15] Vehicle (10) according to claim 14, characterized by , that a vehicle battery (16) is arranged in the housing arrangement (15).

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