Support for a support assembly, method, support assembly, and motor vehicle

Abstract

The invention relates to a support (5) for a support assembly (1) for receiving a drive energy storage device (3) of an electrically driven motor vehicle, wherein - the support (5) extends in a support longitudinal direction, and - the support (5) has at least one channel (23) which extends at least partly along the support longitudinal direction and which is integrated into the support (5), said channel being equipped with at least one line (17). The invention additionally relates to a method for producing such a support (5), to a support assembly (1) comprising such a support (5), and to a motor vehicle comprising such a support assembly (1).

Description

[0001] Carrier for a carrier arrangement, method, carrier arrangement and motor vehicle

[0002] The invention relates to a carrier for a carrier arrangement for receiving a drive energy storage device of an electrically driven motor vehicle, in particular a commercial vehicle, in particular a bus, a method for producing such a carrier, a carrier arrangement for receiving a drive energy storage device of an electrically driven motor vehicle, in particular a commercial vehicle, in particular a bus, and a motor vehicle, in particular a commercial vehicle, in particular a bus, having such a carrier arrangement.

[0003] In a motor vehicle, particularly a bus, it is known to arrange an electric drive energy storage unit by means of a roof structure on the roof of the bus. Such a roof structure is known from DE 102017 115 605 A1. The roof structure there has a large number of stiffening elements and is thus complex and difficult to install. A bus with an electric drive has several electrical lines that connect the drive energy storage unit to the electric drive. Furthermore, the bus has several air conditioning medium lines by means of which the drive energy storage unit can be supplied with an air conditioning medium. The relatively rigid and heavy lines are usually arranged within hollow beams of the bus. Additional insulation elements are necessary to increase energy efficiency.Installing the cables in the roof structure and assembling the entire roof structure is complex and can lead to damage to the cables themselves as well as personal injury during installation. Furthermore, the cables can chafe during bus operation. Due to the relatively large drive energy storage units in buses – as in other commercial vehicles – which sometimes have a mass of up to 500 kg per battery unit, a multitude of electrical cables and air conditioning fluid lines are required, which require a comparatively large amount of installation space inside the bus. Due to the relatively high mass of the drive energy storage unit, the roof structure must have sufficient mechanical stability, which also leads to an undesirable increase in the mass of the entire structure.

[0004] The invention is therefore based on the object of providing a carrier for a carrier arrangement for receiving a drive energy storage device of an electrically driven motor vehicle, in particular a commercial vehicle, in particular a bus, a method for producing such a carrier and a carrier arrangement for receiving a drive energy storage device of an electrically driven motor vehicle, in particular a commercial vehicle, in particular a bus, wherein the aforementioned disadvantages are reduced, preferably do not occur.

[0005] The object is achieved by providing the present technical teaching, in particular the teaching of the independent claims as well as the preferred embodiments disclosed in the dependent claims and the description.

[0006] The object is achieved, in particular, by providing a support for a support arrangement for accommodating a drive energy storage device of an electrically powered motor vehicle, in particular a commercial vehicle, in particular a bus. The support extends in a longitudinal direction of the support. The support has at least one channel extending at least partially along the longitudinal direction of the support and integrated into the support, in particular into the material of the support, in which at least one line, in particular an electrical line, in particular a high-voltage line of the drive energy storage device, or an air conditioning medium line of the drive energy storage device, is arranged.

[0007] The support is advantageously constructed integrally and is therefore relatively easy to install. Since the cables are integrated into the support, in particular into its material, additional insulation elements for the cables can be dispensed with. In particular, this results in less energy loss, which leads to a greater range. Installation of the cables is simplified by omitting additional insulation elements; in particular, damage to the cables and personal injury during installation can be reduced, or preferably avoided. The mass of the support is also advantageously reduced. During installation, there is no longer any need to thread electrical cables and air conditioning medium lines into the support. Furthermore, chafing of the cables can be reduced, or preferably avoided.By integrating the cables into the support, less installation space is advantageously required inside the motor vehicle, in particular a bus. The integrated cables advantageously increase the bending moment of the support, thus eliminating the need for a large number of stiffening elements. Furthermore, the wall thickness of the support can advantageously be reduced. In the context of the present technical teaching, a support is understood to mean, in particular, a load-bearing component, in particular a support component. Such a support component has a longitudinal support extension and a profile oriented transversely to the longitudinal support extension - in a transverse extension - also referred to as a support profile. The transverse extension is, in particular, smaller than the longitudinal support extension. In particular, such a support can be a T-beam, I-beam, also referred to as a double-T-beam, U-beam, Z-beam, or L-beam.

[0008] In one embodiment, the carrier has at least two channels. In particular, the electrical line, in particular the high-voltage line, is arranged in a first of the two channels, and the air conditioning medium line is arranged in a second of the two channels.

[0009] In one embodiment, the carrier has a plurality of first channels, in each of which an electrical line, in particular a high-voltage line, is arranged. In particular, the carrier has a plurality of second channels, in each of which an air conditioning medium line is arranged.

[0010] According to a further development of the invention, the cable has a cable connector configured to be connected to the drive energy storage device. In particular, the cable connector has a screwing means and / or a plugging means and / or a locking means by means of which the cable can be connected to the drive energy storage device.

[0011] According to a further development of the invention, the beam has a double-T profile, wherein the beam is particularly designed as a double-T beam. The at least one channel is arranged in an intersection region of the double-T profile. In particular, the at least one channel is arranged in an intersection region of a web of the beam and a flange of the beam. In particular, the at least one channel is arranged adjacent to an intersection of the web and the flange.

[0012] According to a further development of the invention, a reinforcing element is arranged in the carrier, in particular in the material of the carrier. The reinforcing element can advantageously increase the mechanical stability of the carrier. Advantageously, the reinforcing element can be provided only at those locations that are exposed to greater mechanical stress. In particular, a tailor-made carrier, a so-called tailored profile, can thus be created. In particular, a surface of the reinforcing element is surface-treated, in particular chemically, mechanically and / or by means of an energy beam. Advantageously, the surface treatment can form a highly resilient connection between a material of the carrier and the reinforcing element.

[0013] Alternatively or additionally, it is provided that the carrier has a recess on one end face, in particular oriented in a transverse direction of the carrier. Cables can advantageously be passed through the recess. In addition, the mass of the carrier is particularly reduced. Alternatively or additionally, it is provided that the carrier has a hollow chamber structure, in particular a honeycomb structure, with walls of the hollow chamber structure extending along the longitudinal direction of the carrier. The hollow chamber structure is advantageously itself designed as an insulating element for the cables, so that an additional insulating element can be dispensed with. In particular, this results in fewer energy losses, which leads to a greater range.Alternatively or additionally, it is possible for the hollow chamber structure, in particular the walls, to be designed in some areas as a further line which is designed to conduct an additional medium, in particular a further air conditioning medium.

[0014] The object is also achieved by providing a method for producing a carrier according to the invention or a carrier according to one or more of the previously described embodiments. In the method, the carrier is produced in a primary forming process. The at least one line of the carrier is integrated into the carrier in the primary forming process by forming a channel in which the line is or will be arranged. In connection with the method, in particular, the advantages already explained in connection with the carrier arise.

[0015] In one embodiment, the reinforcing element of the carrier is integrated into the carrier in the primary forming process by forming a cavity in which the reinforcing element is or will be arranged during the primary forming process.

[0016] According to a further development of the invention, it is provided that an injection molding process and / or a generative manufacturing process, in particular a selective energy beam melting process, in particular a laser melting process, also known as Selective Laser Sintering (abbreviated: SLS), is used as the primary forming process. Alternatively or additionally, it is provided that a material selected from a group consisting of: a metallic material, a steel material, a steel alloy, an aluminum material, an aluminum alloy, a plastic, and a combination of at least two of the aforementioned materials is used as the material for the primary forming process. In particular, if a plastic is used as the material for the primary forming process, the advantages already mentioned are realized to a particularly high degree.In particular, the cables integrated into the support act like a fiber material of a fiber composite, with the plastic support acting as a matrix of the fiber composite. This leads to an increase in the bending moment of resistance while simultaneously reducing the mass of the support.

[0017] The object is also achieved by providing a support arrangement for accommodating a drive energy storage device of an electrically powered motor vehicle, in particular a commercial vehicle. The support arrangement comprises at least one support according to the invention or a support according to one or more of the previously described embodiments as an intermediate support. The support arrangement further comprises an end support. The end support extends in particular in an end support longitudinal direction. The at least one intermediate support and the end support are arranged parallel and spaced apart from one another, in particular transversely to the end support longitudinal direction and transversely to a support longitudinal direction of the intermediate support.Between the end support and an intermediate support of the at least one intermediate support and / or between a first intermediate support and a second intermediate support of the at least one intermediate support, a drive energy storage receiving space is arranged, in particular formed, in particular delimited, in particular enclosed. In connection with the support arrangement, the advantages already explained in connection with the support arise in particular. Furthermore, the support arrangement is advantageously constructed without a plurality of stiffening elements and can thus be assembled relatively easily.

[0018] In one embodiment, the carrier arrangement has at least two drive energy storage receiving spaces.

[0019] According to a further development of the invention, the end support has an end support profile that is open on at least one side, in particular a U-shaped support profile, wherein an opening in the end support profile partially faces the drive energy storage receiving space, in particular delimits, in particular encloses, the drive energy storage receiving space. In particular, a drive energy storage device can be arranged partially, in particular with its end regions, in the opening of the end support profile. In this way, a larger drive energy storage device can advantageously be arranged in the drive energy storage receiving space, in particular with the same external dimensions of the support arrangement. According to a further development of the invention, the support arrangement further has a drive energy storage device that is arranged in the drive energy storage receiving space.The drive energy storage device is connected to the at least one line of the at least one intermediate carrier.

[0020] In one embodiment, the carrier arrangement has at least two drive energy stores.

[0021] The drive energy storage device is designed, in particular, to supply an electric drive of the motor vehicle with electrical energy. The drive energy storage device is, in particular, a high-voltage electric battery storage device.

[0022] In one embodiment, the drive energy storage device is connected to the line, in particular to the electrical line, in particular to the high-voltage line, and / or to the air conditioning medium line, by means of the line connection of the line.

[0023] In one embodiment, the at least one intermediate support has at least two channels. In particular, the electrical line is arranged in a first of the two channels. In particular, the air conditioning medium line is arranged in a second of the two channels.

[0024] In one embodiment, the intermediate support has a plurality of first channels, each of which houses an electrical line. In particular, the intermediate support has a plurality of second channels, each of which houses an air conditioning medium line.

[0025] According to a further development of the invention, the support assembly further comprises at least one base plate connected to the at least one end support and / or the at least one intermediate support. This advantageously further increases the mechanical stability of the support assembly.

[0026] In one embodiment, the support arrangement has two base plates, namely a first base plate as a floor plate and a second base plate as a cover plate. In particular, the floor plate is arranged below the at least one support when the support arrangement is installed as intended in the motor vehicle. In particular, the cover plate is arranged above the at least one support when the support arrangement is installed as intended in the motor vehicle. According to a further development of the invention, it is provided that at least one support, selected from the at least one intermediate support and the end support, has at least one fastening point which is optionally configured to fasten the drive energy store, the at least one base plate, or a further element, in particular a holder, in particular a cable holder, in particular a plug-in cable tie, to the at least one support.In particular, a fastening element can be attached to at least one fastening point. The functional integration of the fastening elements advantageously reduces alignment and assembly times.

[0027] In one embodiment, the fastening point has a bore, a thread or a flange or is designed as a bore, a thread or a flange.

[0028] The object is also achieved by providing a motor vehicle, in particular a commercial vehicle, in particular a bus, with at least one carrier arrangement according to the invention or a carrier arrangement according to one or more of the previously described embodiments. The carrier arrangement is arranged in a roof region of the motor vehicle, in particular above a passenger compartment of the motor vehicle. In connection with the motor vehicle, the advantages already explained in connection with the carrier and the carrier arrangement are particularly evident.

[0029] Alternatively, the support arrangement is arranged in a floor area of ​​the motor vehicle, in particular beneath the passenger compartment of the motor vehicle. In particular, the support arrangement forms an underside, in particular a floor, of the passenger compartment. In particular, the support arrangement is particularly easy to install. Roof edge cladding in the roof area can be dispensed with. The aerodynamics of the motor vehicle, in particular of the bus, can be improved because the vehicle height is lower. Furthermore, a bending moment of resistance of the underside of the passenger compartment, in particular of the floor on which passengers move, can be increased. In particular, the hollow chamber structure leads to a particularly good insulation effect with regard to the introduction of cold into the passenger compartment via the floor area.

[0030] According to a further development of the invention, the motor vehicle has at least one drive energy storage device arranged in the drive energy storage receiving space of the support assembly. The drive energy storage device is configured to supply an electric drive of the motor vehicle with electrical energy. In particular, the arrangement of the drive energy storage device in the floor area of ​​the motor vehicle results in a lower center of gravity of the motor vehicle, which can improve driving dynamics. Likewise, the tendency of the motor vehicle to roll over can be reduced, preferably prevented.

[0031] The invention is explained in more detail below with reference to the drawings, which show:

[0032] Fig. 1 is a schematic representation of a first embodiment of a carrier arrangement,

[0033] Fig. 2 is a schematic representation of a first embodiment of a carrier, and

[0034] Fig. 3 is a schematic representation of a second embodiment of a carrier.

[0035] Figure 1 shows a schematic representation of a first embodiment of a carrier arrangement 1 for receiving a drive energy storage device 3 of an electrically driven motor vehicle in a side view.

[0036] The support arrangement 1 has at least one – here two – support 5 as an intermediate support 7. The support arrangement 1 further has one – here two – end support 9. The end support 9 extends, in particular, in an end support longitudinal direction extending into the image plane. The at least one intermediate support 7 and the end support 9 are arranged parallel and spaced from one another, in particular transversely to the end support longitudinal direction and transversely to a support longitudinal direction of the intermediate support 7, which also extends into the image plane, represented by the arrow A. Between the end support 9 and an intermediate support 7 of the at least one intermediate support 7 – represented by the dashed circle B – and / or between a first intermediate support 7.1 and a second intermediate support 7.2 - represented by the dashed circle C - of the at least one intermediate carrier 7, a drive energy storage receiving space 11 is arranged, in particular formed, in particular limited, in particular enclosed.

[0037] In this embodiment, it is provided that the end support 9 has an end support profile that is open at least on one side, in particular a U-shaped support profile, wherein an opening 13 of the end support profile partially faces the drive energy storage receiving space 11, in particular delimits, in particular encloses, the drive energy storage receiving space 11.

[0038] In this embodiment, the support assembly 1 further comprises the drive energy storage device 3, which is arranged in the drive energy storage receiving space 11. The drive energy storage device 3 is connected to at least one line 17—of which only some are provided with a reference symbol for clarity—in particular the electrical line 16 and / or the air conditioning medium line 21, of the at least one intermediate support 7. In particular, the drive energy storage device 3 is arranged in sections, in particular with its end region 18, in the opening 13 of the end support profile.

[0039] In this embodiment, the carrier arrangement 1 has three drive energy stores 3, namely a first drive energy store 3.1, a second drive energy store 3.2 and a third drive energy store 3.3.

[0040] In this embodiment, the drive energy storage device 3 is connected to the at least one line 17, in particular to the electrical line 16, in particular to the high-voltage line, and / or to the air conditioning medium line 21, by means of a line connection 19 of the at least one line 17.

[0041] In this embodiment, the intermediate support 7 has a plurality of first channels 23.1, in each of which an electrical line 16 is arranged. In particular, the intermediate support 7 has a plurality of second channels 23.2, in each of which an air conditioning medium line 21 is arranged.

[0042] In this embodiment, it is provided that the support arrangement 1 further comprises a base plate 25 which is connected to the at least one end support 9 and / or the at least one intermediate support 7.

[0043] In this embodiment, the support assembly 1 has the base plate 25 as a floor plate. In particular, the floor plate—when the support assembly 1 is installed as intended in the motor vehicle—is arranged below the at least one support 5.

[0044] In this embodiment, it is provided that at least one support 5, selected from the at least one intermediate support 7 and the end support 9, has at least one fastening point 27 - of which only a few are provided with a reference number by way of example - which is optionally configured to fasten the drive energy store 3, the at least one base plate 25, or another element, in particular a holder, in particular a cable holder, in particular a plug-in cable tie, to the at least one support 5. In particular, a fastening element 29, for example a screw, can be fastened to the at least one fastening point 27. In this embodiment, the fastening point 27 has a bore, a thread or a flange or is designed as a bore, a thread or a flange.

[0045] Figure 2 shows a schematic representation of a first embodiment of the carrier 5 of the carrier arrangement 1 according to Figure 1 in an isometric view.

[0046] Identical and functionally equivalent elements are provided with the same reference symbols in all figures, so that reference is made to the preceding description in each case.

[0047] The carrier 5 shown here corresponds to the at least one intermediate carrier 7 in Figure 1.

[0048] The carrier 5 extends in the carrier longitudinal direction indicated by arrow D. The carrier 5 has at least one channel 23 extending at least partially along the carrier longitudinal direction and integrated into the carrier 5, in particular into the material of the carrier 5, in which the at least one line 17, in particular the electrical line 16, in particular a high-voltage line of the drive energy storage device 3, or the air conditioning medium line 21 of the drive energy storage device 3, is arranged.

[0049] In this embodiment, it is provided that the line 16 has the line connection 19, not shown here, which is designed to be connected to the drive energy storage device 3.

[0050] In this embodiment, it is provided that the carrier 5 has a recess 41 on an end face 39, which is oriented in particular in a transverse direction of the carrier.

[0051] In this embodiment, the carrier 5 has eight channels 23. Six electrical lines 16 and two air conditioning medium lines 21 are arranged in the eight channels 23.

[0052] Figure 3 shows a schematic representation of a second embodiment of the carrier 5 of the carrier arrangement 1 according to Figure 1 in an end view.

[0053] In particular, the carrier 5 of the second embodiment is a further development of the carrier 5 of the first embodiment according to Figure 2.

[0054] In this embodiment, it is provided that the support 5 has a double-T profile, wherein the support 5 is designed in particular as a double-T support. The at least one channel 23 is arranged in an intersection region 31 of the double-T profile. In particular, the at least one channel 23 is arranged in an intersection region 31 of a web 33 of the support 5 and a flange 35 of the support 5. In particular, the at least one channel 23 is arranged adjacent to an intersection 37 of the web 33 and the flange 35.

[0055] In this embodiment, it is provided that a reinforcing element 43 is arranged in the carrier 5, in particular in the material of the carrier 5.

[0056] In this embodiment, it is provided that the carrier 5 has a hollow chamber structure 45, in particular a honeycomb structure, wherein walls 47 of the hollow chamber structure 45 extend along the longitudinal direction of the carrier extending into the image plane.

Claims

Patent claims 1. Support (5) for a support arrangement (1) for receiving a drive energy storage device (3) of an electrically driven motor vehicle, wherein - the carrier (5) extends in a carrier longitudinal direction, wherein - the carrier (5) has at least one channel (23) extending at least partially along the longitudinal direction of the carrier and integrated into the carrier (5), in which at least one line (17) is arranged.

2. Carrier (5) according to claim 1, wherein - the line (17) has a line connection (19) which is designed to be connected to the drive energy store (3).

3. Carrier (5) according to one of the preceding claims, wherein - the support (5) has a double-T profile, wherein - the at least one channel (23) is arranged in an intersection region (31) of the double-T profile.

4. Carrier (5) according to one of the preceding claims, wherein - a reinforcing element (43) is arranged in the carrier (5), and / or wherein - the carrier (5) has a recess (41) on one end face (39), and / or wherein - the carrier (5) has a hollow chamber structure (45), wherein walls (47) of the hollow chamber structure (45) extend along the longitudinal direction of the carrier.

5. A method for producing a carrier (5) according to one of the preceding claims, wherein - the carrier (5) is produced in a primary forming process, wherein - the at least one line (17) of the carrier (5) is integrated into the carrier (5) in the primary forming process by forming a channel (23) in which the line (17) is or will be arranged during the primary forming process.

6. The method according to claim 5, wherein - an injection moulding process and / or a generative manufacturing process is used as the primary forming process, and / or - the material used for the primary forming process is a material selected from a group consisting of: a metallic material, a steel material, a steel alloy, an aluminium material, an aluminium alloy and a plastic.

7. A carrier arrangement (1) for receiving a drive energy storage device (3) of an electrically driven motor vehicle, comprising: - at least one carrier (5) according to one of claims 1 to 4 as an intermediate carrier (7), and - an end support (9), wherein - the at least one intermediate support (7) and the end support (9) are arranged parallel and spaced from each other, wherein - a drive energy storage receiving space (11) is arranged between the end support (9) and an intermediate support (7) of the at least one intermediate support (7) and / or between a first intermediate support (7.1) and a second intermediate support (7.2) of the at least one intermediate support (7).

8. Support arrangement (1) according to claim 7, wherein the end support (9) has an end support profile that is open on at least one side, wherein an opening (13) of the end support profile partially faces the drive energy storage receiving space (11).

9. Carrier arrangement (1) according to claim 7 or 8, further comprising: - a drive energy storage device (3) which is arranged in the drive energy storage receiving space (11), wherein - the drive energy store (3) is connected to the at least one line (17) of the at least one intermediate carrier (7).

10. Carrier arrangement (1) according to one of claims 7 to 9, further comprising: - at least one base plate (25) which is connected to the at least one end support (9) and / or the at least one intermediate support (7).

11. Carrier arrangement (1) according to one of claims 7 to 10, wherein - at least one support (5), selected from the at least one intermediate support (7) and the end support (9), has at least one fastening point (27) which is optionally designed to fasten the drive energy store (3), the at least one base plate (25), or a further element to the at least one support (5), wherein - the fastening point (27) preferably has a bore, a thread or a flange or is designed as a bore, a thread or a flange.

12. Motor vehicle, with at least one carrier arrangement (1) according to one of claims 7 to 11, wherein the carrier arrangement (1) is arranged in a roof area of ​​the motor vehicle or in a floor area of ​​the motor vehicle.

13. Motor vehicle according to claim 12, wherein the motor vehicle has at least one drive energy store (3) which is arranged in the drive energy store receiving space (11) of the carrier arrangement (1), wherein the drive energy store (3) is designed to supply an electric drive of the motor vehicle with electrical energy.

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