Mounting device, vehicle tube, battery assembly and vehicle

Abstract

Fastening device for fastening an accumulator (18) in a pipe section (20) of a vehicle (10), with an attachment (36), wherein the attachment (36) has a guide section (46) and at least two alignment sections (48), wherein the guide section (46) has a guide (54) with a central axis (M) for guiding a bolt (38) along the central axis (M), wherein the alignment sections (48) each have at least one alignment surface (58), and wherein the alignment surfaces (58) face the central axis (M) and are arranged on opposite sides of the central axis (M), wherein the fastening device (22) has the bolt (38) which is partially provided in the guide (54).

Description

[0001] The invention relates to a fastening device for fastening a battery in a vehicle tube, a battery assembly, a vehicle tube and an electrically powered vehicle.

[0002] Vehicles that were previously powered by combustion engines or muscle power are increasingly being electrified. As a result, it is necessary to include a battery in the vehicle to provide the energy required for propulsion. At the same time, the battery should be easily accessible so that it can be easily replaced or removed, for example, to charge it independently of the vehicle.

[0003] German patent application DE 20 2019 103 044 U1 discloses a mechanism for inserting a battery in a battery housing into the downtube of a bicycle. A receiving seat is provided on the end face of the battery housing, into which a mounting seat of the tube engages. When the battery is attached, it is pivoted into the tube and a locking bolt engages in a locking groove.

[0004] German patent DE 11 2019 001 106 T5 also discloses a mechanism for attaching a battery inside a bicycle tube. This mechanism also uses a pivoting motion.

[0005] US patent 2019 / 0337587A1 shows a mechanism for attaching a battery inside a bicycle tube, which has an attachment with a hinge.

[0006] DE 10 2012 109 056 A1 reveals a labeling machine.

[0007] US patent 2011 / 0042156A1 discloses an e-bike in which the battery is located inside the seat tube. A collar is attached to the battery, and a spring-loaded plate is guided within the seat tube. The battery is placed onto the plate, and the plate, along with the battery, is then lowered into the seat tube against the spring force. The plate has a projection for positioning the battery, and the mounting bracket has a corresponding recess.

[0008] The JP H10-181 651 A and the US 2008 / 0088108 A1 show further e-bikes.

[0009] It is therefore an object of the invention to provide a fastening device, a battery assembly, a vehicle tube and a vehicle with which a battery can be attached to the vehicle in a simple and safe manner.

[0010] The problem is solved by a fastening device for fastening an accumulator in a pipe section of a vehicle, in particular an electrically powered vehicle, according to claim 1.

[0011] The fastening device has an attachment, the attachment comprising a guide section and at least two alignment sections. The guide section has a guide with a central axis for guiding a bolt along the central axis. The alignment sections each have at least one alignment surface, and the alignment surfaces face the central axis and are arranged on opposite sides of the central axis.

[0012] With the help of the attachment and the alignment surfaces provided on it, easy installation of the accumulator in a vehicle tube is possible, since the guidance of the attachment by the alignment surfaces automatically aligns itself to a thread of the counterpart when the attachment is placed on a corresponding counterpart provided in the tube section.

[0013] In one embodiment, the attachment has a front end and a rear end with respect to the central axis, wherein the guide is provided at the front end, in particular extending from the front end, and / or the alignment sections are provided at the rear end, in particular wherein the alignment surfaces extend obliquely towards the central axis and / or towards each other in the direction of the front end. This allows the attachment to be easily mounted onto the counterpart with its rear end, and it is thereby aligned in particular by the oblique alignment surface.

[0014] To save weight, the alignment sections can lie outside an area along the central axis, which is determined by an imaginary extension of the guide, in particular of the entire guide section along the central axis.

[0015] In one embodiment, the guide is formed by a through-opening in the guide section and / or is designed without threads. This allows the bolt to be moved very easily within the guide.

[0016] For example, at least one hole is provided in at least one of the alignment sections, in particular wherein each alignment section has at least one hole. A fastening element, e.g. a screw, can be passed through each hole to attach the attachment to the accumulator.

[0017] According to the invention, the fastening device has a bolt that is partially provided in the guide. In one embodiment, the bolt is captive within the guide. By means of the bolt, the attachment and thus the accumulator can be securely fastened to the pipe section.

[0018] The bolt can have a thread, i.e., it can be a threaded bolt.

[0019] For example, the bolt has a rear circumferential groove in which a retaining ring is provided, and / or the bolt has a head where the diameter of the head is larger than the diameter of the guide. The retaining ring can be positioned behind and the head in front of the guide, thus securing the bolt securely within the guide.

[0020] In a further embodiment, the fastening device has a cover and a slider, wherein the slider is displaceable relative to the bolt between a closed and an open position, and wherein, in the closed position, movement of the bolt parallel to the central axis is limited, and in particular prevented, by the slider. The slider ensures that the bolt cannot unintentionally loosen when screwed into the thread of the mating part.

[0021] In particular, the slider is movable relative to the attachment and the cover, for example perpendicular to the central axis.

[0022] The slider can be pre-tensioned towards the closed position by means of an elastic element, such as a spring.

[0023] In one embodiment, the slide has at least one locking projection, wherein the guide section has at least one opening through which the at least one locking projection extends in the closed position, and / or wherein the bolt has at least one recess into which the at least one locking projection engages in the closed position. The locking projection can be easily formed on the slide, thus keeping production costs low.

[0024] To ensure symmetrical loading, the slide can have two locking projections that run parallel to each other.

[0025] The recess of the bolt can be designed as a circumferential groove in order to lock the bolt regardless of its rotation around the central axis.

[0026] The problem is further solved by a battery assembly comprising an accumulator and a fastening device as described above, wherein the attachment is fastened to the accumulator, in particular to an end face of the accumulator.

[0027] The features and advantages described for the fastening device apply equally to the battery assembly and vice versa.

[0028] The attachment to the accumulator is secured, for example, by screws through the holes in the alignment sections.

[0029] In one embodiment, the cover is attached to the accumulator, particularly on a different side of the accumulator than the attachment, with the slider positioned between the cover and the accumulator. This allows the cover to simultaneously serve as a guide for the slider. The cover can cover the front end of the accumulator.

[0030] For example, the cover and the accumulator form a chamber in which the slider is located.

[0031] Furthermore, the problem is solved by a vehicle tube with a tube section, a counterpart and a fastening device as previously described or a battery assembly as previously described, wherein the tube section has a front wall and a rear wall, wherein the counterpart is attached to the rear wall, in particular wherein the alignment surfaces of the attachment are in contact with the counterpart.

[0032] The features and advantages described for the mounting device and / or the battery assembly apply equally to the vehicle tube and vice versa.

[0033] In particular, the counterpart is attached to the back wall at its rear end.

[0034] For example, a recess for inserting the accumulator is provided in the front wall.

[0035] The outer contour of the attachment, in particular the outer contour of the alignment sections, corresponds to the inner contour of the pipe section.

[0036] In one embodiment, the counterpart has two contact flanks that are designed to be complementary to the alignment surfaces, in particular running at the same angle as the alignment surfaces obliquely to the central axis, whereby the attachment fits precisely into the counterpart.

[0037] In particular, the mounting edges rest against the counterpart laterally.

[0038] In one embodiment, the counterpart has an opening at a front end that extends concentrically to the central axis, in particular wherein the opening has a thread. The bolt can be received and securely fastened in the counterpart by means of the opening.

[0039] In particular, the front end of the opening, facing the guide, has the same diameter as the bolt.

[0040] In one aspect of the invention, the bolt engages in the opening, in particular wherein the rear circumferential groove of the bolt and / or the retaining ring is provided between the front end of the counterpart and the guide.

[0041] In order to accommodate accumulators of different sizes, the vehicle tube can have several counterparts that are spaced apart in the axial direction of the tube section and attached to the rear wall.

[0042] In one embodiment, the pipe section is designed as a double pipe with two pipe parts, wherein one of the walls of the second pipe part is the back wall of the first pipe part. This increases the stability of the pipe section.

[0043] The problem is further solved by an electrically powered vehicle with a vehicle tube as previously described, in particular wherein the vehicle is a two-wheeler and / or a bicycle.

[0044] The features and advantages described for the mounting device, the battery assembly and / or the vehicle tube apply equally to the vehicle and vice versa.

[0045] In particular, the vehicle has an electric motor.

[0046] Further advantages and features of the invention will become apparent from the following description and from the accompanying drawings, to which reference is made. The drawings show: Fig. 1: A vehicle according to the invention in a highly schematic view, Fig. 2: an exploded view of a vehicle pipe according to the invention of the vehicle according to Fig. 1 with a battery assembly according to the invention with a fastening device according to the invention, Fig. 3: an enlarged perspective view of an attachment of the fastening device according to Fig. 2 and the counterpart of the vehicle pipe according to Fig. 2, Fig. 4, Fig. 5: a perspective view of a bolt or a slider of the fastening device according to Fig. 2, Fig. 6: a cross-section through the vehicle pipe according to Fig. 2, with the slider in the closed position, and Fig. 7: a perspective view of the vehicle tube according to Fig. 2 with fully assembled mounting device.

[0047] In Fig. Figure 1 shows a vehicle 10 according to the invention with a vehicle tube 12, wheels 14, an electric motor 16 and an accumulator 18.

[0048] The vehicle 10 is, for example, a two-wheeled vehicle and / or a bicycle. The electric motor 16 can be coupled to one of the wheels 14 or the bottom bracket in a manner known per se in order to propel the vehicle 10.

[0049] The vehicle tube 12, for example, is the down tube of the bicycle. Of course, it is also conceivable that the vehicle tube 12 is any other tube of the bicycle.

[0050] In Fig. Figure 2 shows an exploded view of the vehicle tube 12 and the accumulator 18.

[0051] The vehicle tube 12 has a tube section 20, a fastening device 22 and a counterpart 24 for the fastening device 22.

[0052] The fastening device 22 and the accumulator 18 can together form an accumulator assembly 25.

[0053] The pipe section 20 has a rear wall 26 and a front wall 28, the front wall 28 having a recess 30 for introducing the accumulator 18 into the pipe section 20.

[0054] The counterpart 24 is attached to the rear wall 26 in the area of ​​the recess 30, for example by welding. For example, the counterpart 24 is visible in a radial view of the recess 30 when no accumulator 18 is inserted.

[0055] Further identically designed counterparts 24 can be provided in the pipe section 20, particularly in the area of ​​the recess 30, which are arranged axially spaced apart from one another. Fig. 2 These additional counterparts are indicated by dashed lines.

[0056] The fastening device 22 has a cover 32, a slider 34, an attachment 36, a bolt 38 and a retaining ring 40.

[0057] The accumulator 18 has an elongated, in particular cylindrical shape with a cross-section, two end faces 42 and a front wall 44.

[0058] The cross-section of the accumulator 18 is equal to or smaller than the internal cross-section of the pipe section 20, so that the accumulator 18 can be completely accommodated in the pipe section 20.

[0059] The cover 32 is attached to the accumulator 18, in particular by screws. For example, the cover 32 is attached to the front wall 44 of the accumulator 18.

[0060] The cover 32 has a shape complementary to the recess 30, so that it closes the recess 30 in the front wall 28 of the pipe section 20 when the accumulator 18 is inserted into pipe section 20.

[0061] The attachment 36 is attached to the lower end face 42 of the accumulator 18. The attachment 36 is in Fig. 3 together with its counterpart 24 shown separately.

[0062] The appendage 36 has a guide section 46, two alignment sections 48 extending from the guide section 46 on opposite sides, a front end 50 and a rear end 52.

[0063] The guide section 46 is arranged at the front end 50 and, in the illustrated embodiment, has a substantially cuboid shape.

[0064] In the guide section 46, a guide 54 and two breakthroughs 56 are provided.

[0065] The guide 54 is designed as a through-opening in the guide section 46 and extends continuously from the front end 50 to the rear end of the guide section 46. For example, the guide 54 has a round cross-section.

[0066] The guide 54 has a diameter, whereby a muzzle section at the front end 50 may be provided which has a larger diameter.

[0067] The guide 54 has a central axis M, in particular an axis through the center of the cross-section, which, in the installed position of the accumulator 18 in the pipe section 20, runs perpendicular to the pipe section 20 or with less than 10° deviation from the perpendicular to the pipe section 20.

[0068] The through-hole and thus also the guide 54 are, for example, threadless, i.e., designed without internal threads.

[0069] The openings 56 extend downwards from the top of the guide section 46, in particular completely through the guide section 46. The openings 56 open at least partially into the guide 54.

[0070] The distance between the openings 56 perpendicular to the central axis M is smaller than the diameter of the guide 54.

[0071] The alignment sections 48 extend from the side surfaces of the guide section 46 to the rear end 52 of the attachment 36.

[0072] The alignment sections 48 are always spaced apart from each other and run completely on different sides of the central axis M.

[0073] The upper surfaces of the alignment sections 48 form a plane which, in the assembled state, runs perpendicular or at less than 10° to the perpendicular of the pipe section 20.

[0074] In the alignment sections 48 holes 57 are provided, wherein in the illustrated embodiment a hole 57 is formed in each alignment section 48.

[0075] The attachment 36, for example, is fastened to the front face 42 of the accumulator 18 by means of screws (not shown) which extend through the holes 57.

[0076] The outer contour of the alignment sections 48, i.e. the side of the alignment sections 48 facing the pipe section 20, essentially corresponds to the inner contour of the corresponding section of the vehicle pipe 12.

[0077] The mutually facing inner surfaces of the alignment sections 48 each have an alignment surface 58 and a spacing surface 60.

[0078] The clearance areas 60 border the guide section 46 and run parallel to each other and parallel to the central axis M. The clearance areas 60 define a region B along the central axis M, which encompasses the imaginary extension of the guide section 46 along the central axis M.

[0079] The clearance areas 60 transition towards the rear end 52 into the alignment areas 58, which extend to the rear end 52.

[0080] Viewed from the rear end 52, the alignment surfaces 58 run obliquely towards each other and thus also obliquely to the central axis M.

[0081] The alignment surfaces 58 thus form a v-shaped mouth with which the attachment 36 engages with the counterpart 24 during assembly.

[0082] The counterpart 24 also has a front end 62 and a rear end 64, wherein the counterpart 24 is attached, in particular welded, to the rear wall 26 of the vehicle tube 12 with the rear end 64.

[0083] The counterpart 24 has an end face 66 and two contact flanks 68. The end face 66 forms the front end 62 of the counterpart 24.

[0084] In the front face 66 an opening 70 with a thread is formed, which is designed, for example, as a threaded bore.

[0085] The two mounting flanks 68 extend from the front face 66 on opposite sides. The mounting flanks 68 run obliquely towards the front face 66 in the direction of the rear end 64.

[0086] The angle between the two end faces 66 corresponds to the angle between the two alignment surfaces 58 of the attachment 36.

[0087] In the properly assembled state of the fastening device 22, the end face 66 lies perpendicular to the central axis M of the attachment 36 in area B, the opening 70 extends concentrically to the central axis M of the attachment 36 and the two alignment surfaces 58 lie against the contact flanks 68.

[0088] In other words, the counterpart 24 now engages in the v-shaped mouth of the attachment 36, in particular with a precise fit.

[0089] Fig. Figure 4 shows bolt 38 separately and in perspective view.

[0090] The bolt 38 has a thread 72, a head 74, a rear circumferential groove 76 and a front circumferential groove 78. The bolt 38 is therefore a threaded bolt.

[0091] The thread 72 is provided at the rear end of the bolt 38 and is designed to match the thread of the counterpart 24.

[0092] The head 74 is provided at the front end of the bolt 38 and has a diameter larger than the rest of the bolt 38's diameter. For example, the diameter of the head 74 corresponds to the diameter of the mouth section of the guide 54.

[0093] The two circumferential grooves 76, 78 run completely around the bolt 38 in the circumferential direction.

[0094] In the illustrated embodiment, the rear circumferential groove 76 borders the thread 72 and / or the front circumferential groove 78 borders the head 74.

[0095] In the rear circumferential groove 76, the retaining ring 40 is provided in the assembled state. The retaining ring 40 has a diameter that is larger than the diameter of the guide 54.

[0096] In Fig. Figure 5 shows the slider 34 separately and in perspective view.

[0097] The slide 34 has a plate-shaped base body 80 with a longitudinal direction L, two locking projections 82 and an actuating projection 84.

[0098] The actuating projection 84 extends vertically upwards from one of the surfaces of the base body 80.

[0099] The locking projections 82 can be considered locking tongues and extend from the same end of the base body 80. The locking projections 82 run parallel in the longitudinal direction L at a distance from each other. This distance corresponds to the distance between the openings 56 of the guide section 46 of the attachment 36.

[0100] In other words, the slider 34 forms a fork.

[0101] In Fig. Figure 6 shows the vehicle tube 12 with the battery assembly 25, the accumulator 18 and the complete fastening device 22 in section.

[0102] In Fig. Figure 6 shows that the pipe section 20 is designed as a double pipe, comprising two pipe parts 85, 86. The rear wall 26 of the first pipe part 85 forms the front wall of the second pipe part 86.

[0103] The fastening device 22 is therefore in a properly installed state.

[0104] When properly assembled, the attachment 36 is attached to the front 42 of the accumulator 18 and the cover 32 is attached to the front wall 44 of the accumulator 18.

[0105] Between the front wall 44 and the cover 32 a chamber 87 is formed in which the slide 34 is provided.

[0106] As previously described, the attachment 36 rests against the counterpart 24 and the bolt 38 extends along the central axis M through the guide 54 into the opening 70 in which it is screwed.

[0107] The head 74 of the bolt 38 is located at least partially, and in particular completely, within the muzzle section of the guide 54.

[0108] The retaining ring 40 is inserted into the rear circumferential groove 76 and is located between the front end of the counterpart 24 and the guide section 46.

[0109] This ensures that the bolt 38 is securely positioned in the guide 54, since the head 74 and the retaining ring 40, which are provided along the central axis M on different sides of the guide 54, prevent the bolt 38 from falling out of the guide 54 in either of the two possible directions.

[0110] The front circumferential groove 78 is aligned with the openings 56 of the guide section 46, the remaining diameter of the bolt 38 in the area of ​​the front circumferential groove 78 corresponding to the distance between the two openings 56.

[0111] Chamber 87 is open towards the attachment 36, more precisely it opens towards the guide section 46 of the attachment 36 in such a way that the two openings 56 of the guide section 46 lead into chamber 87.

[0112] The slide 34 extends with its longitudinal direction L parallel to the front wall 44 and to the cover 32, thus also parallel to the pipe axis of the pipe section 20.

[0113] The actuating projections 84 of the slide 34 are oriented downwards, i.e. towards the guide section 46.

[0114] The slide 34 is arranged to be displaceable perpendicular to the central axis M relative to the cover 32 and the attachment 36, in particular in the longitudinal direction L and thus parallel to the front wall 44, to the cover 32 and to the pipe axis.

[0115] The slider 34 can assume a closed, lower position and an open upper position.

[0116] For example, the slide 34 is biased towards the closed position by an elastic element 83, such as a spring. The elastic element 83 can be provided on the cover 32.

[0117] In the closed position of the slide 34, the locking projections 82 extend through the openings 56 of the guide section 46 into the guide 54. When the bolt 38 is inserted into the guide 54, as shown in Fig. As shown in Figure 5, the locking projections 82 engage in the front circumferential groove 78 and thus prevent axial movement of the bolt 38 along the central axis M.

[0118] The front circumferential groove 78 thus represents a recess into which the locking projections 82 engage.

[0119] The barrier projections 82 can extend further downwards, for example through the entire guide section 46.

[0120] In the open position of the slide 34, the locking projections 82 are not located in the guide 54, nor, for example, in the openings 56, and therefore do not engage in the front circumferential groove 78 of the bolt 38. The bolt can thus be moved in its axial direction along the central axis M, and in particular screwed in.

[0121] Fig. Figure 7 shows the vehicle tube 12 of the battery assembly 25 in a fully and properly assembled state.

[0122] It is clearly visible that the cover 32 almost completely closes the recess 30. Only the front end 50 of the guide section 46 of the attachment 36 is provided in a recess of the cover 32.

[0123] It can also be seen that the cover 32 has an elongated hole 88 that opens into the chamber 87 and extends in the longitudinal direction L of the slide 34. The actuating projection 84 of the slide 34 protrudes through the elongated hole 88.

[0124] Furthermore, holes 90 may be provided in the cover 32 through which screws (not shown) can be passed to fasten the slider 34 in the closed position.

[0125] The fastening device 22 allows the accumulator 18 to be easily and securely fastened inside the pipe section 20.

[0126] The alignment sections 48 in the attachment 36 and the counterpart 24, which is firmly attached in the pipe section 20, simplify the assembly in such a way that the guide 54 is aligned with the opening 70 without any further intervention when inserting.

[0127] In this position, the opening 70 and the guide 54 are aligned, so that the bolt 38 can simply be screwed in.

[0128] In the axial direction of the pipe section 20, the accumulator 18 can be placed with its end face 42 on the counterpart 24.

[0129] The slider 34 reliably prevents the bolt 38 from unintentionally coming loose, for example during off-road driving.

[0130] Furthermore, the retaining ring 40 and the head 74 ensure that the bolt 38 is captive, i.e., cannot fall out of the guide 54.

Claims

[1] Fastening device for fastening an accumulator (18) in a pipe section (20) of a vehicle (10), with an attachment (36), wherein the attachment (36) has a guide section (46) and at least two alignment sections (48), wherein the guide section (46) has a guide (54) with a central axis (M) for guiding a bolt (38) along the central axis (M), wherein the alignment sections (48) each have at least one alignment surface (58), and wherein the alignment surfaces (58) face the central axis (M) and are arranged on opposite sides of the central axis (M), wherein the fastening device (22) has the bolt (38) which is partially provided in the guide (54). [2] Fastening device according to claim 1, characterized by, that the attachment (36) has a front end (50) and a rear end (52) with respect to the central axis (M), wherein the guide (54) is provided at the front end (50), in particular extending from the front end (50), and / or the alignment sections (48) are provided at the rear end (52), in particular wherein the alignment surfaces (58) extend obliquely towards the central axis (M) and / or towards each other in the direction of the front end (50). [3] Fastening device according to claim 1 or 2, characterized by , that the alignment sections (48) lie outside a region (B) along the central axis (M) which is determined by an imaginary extension of the guide (54), in particular of the entire guide section (46) along the central axis (M). [4] Fastening device according to one of the preceding claims, characterized by, that the guide (54) is formed by a through-opening in the guide section (46) and / or is designed without threads. [5] Fastening device according to any one of the preceding claims, characterized by , that the bolt (38) is provided in a captive manner in the guide (54). [6] Fastening device according to any one of the preceding claims, characterized by , that the fastening device (22) has a cover (32) and a slide (34), wherein the slide (34) is displaceable relative to the bolt (38) between a closed position and an open position, wherein in the closed position a movement of the bolt (38) parallel to the central axis (M) by the slide (34) is limited, in particular prevented. [7] Fastening device according to claim 6, characterized by, that the slide (34) has at least one locking projection (82), wherein the guide section (46) has at least one opening (56) through which the at least one locking projection (82) passes in the closed position, and / or wherein the bolt (38) has at least one recess into which the at least one locking projection (82) engages in the closed position. [8] Fastening device according to claim 7, characterized by that the slide (34) has two locking projections (82) that run parallel to each other and / or the recess of the bolt (38) is designed as a circumferential groove (78). [9] Battery assembly comprising an accumulator (18) and a fastening device (22) according to one of the preceding claims, wherein the attachment (36) is fastened to the accumulator (18), in particular to an end face (42) of the accumulator (18). [10] Battery assembly according to claim 9, characterized by, that the cover (32) is attached to the accumulator (18), in particular to a different side of the accumulator (18) than the attachment (36), wherein the slider (34) is arranged between the cover (32) and the accumulator (18). [11] Vehicle tube with a tube section (20), a counterpart (24) and a fastening device (22) according to one of claims 1 to 8 or a battery assembly (25) according to claim 9 or 10, wherein the tube section (20) has a front wall (28) and a rear wall (26), wherein the counterpart (24) is attached to the rear wall (26), in particular wherein the alignment surfaces (58) of the attachment (36) are in contact with the counterpart (24). [12] Vehicle pipe according to claim 11, characterized by , that the counterpart (24) has two contact flanks (68) which are complementary to the alignment surfaces (58), in particular running obliquely to the central axis (M) at the same angle as the alignment surfaces (58). [13] Vehicle tube according to claim 11 or 12, characterized by , that the counterpart (24) has an opening (70) at a front end which is concentric to the central axis (M), in particular wherein the opening (70) has a thread (72). [14] Vehicle tube according to one of claims 11 to 13, characterized by , that the vehicle tube (12) has several counterparts (24) which are spaced apart in the axial direction of the tube section (20) and attached to the rear wall (26). [15] Vehicle pipe according to one of claims 11 to 14, characterized by , that the pipe section (20) is designed as a double pipe with two pipe parts (85, 85), wherein one of the walls of the second pipe part (86) is the back wall (26) of the first pipe part (85). [16] Electrically powered vehicle with a vehicle tube (12) according to any one of claims 11 to 15, in particular wherein the vehicle (10) is a two-wheeler and / or a bicycle.

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