Search

EP-4739522-A1 - SUPPORT FOR A SUPPORT ASSEMBLY, METHOD, SUPPORT ASSEMBLY, AND MOTOR VEHICLE

EP4739522A1EP 4739522 A1EP4739522 A1EP 4739522A1EP-4739522-A1

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).

Inventors

  • NEUSCHL, CHRISTIAN
  • WEBER, CLAUS

Assignees

  • Daimler Truck AG

Dates

Publication Date
20260513
Application Date
20240704

Claims (13)

  1. 1. Carrier (5) for a carrier 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) which extends at least partially along the longitudinal direction of the carrier and is integrated into the carrier (5), in which at least one line (17) is arranged.
  2. 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. 3. Carrier (5) according to one of the preceding claims, wherein - the carrier (5) has a double-T profile, wherein - the at least one channel (23) is arranged in a crossing region (31) of the double-T profile.
  4. 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. 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, whereby - 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. 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. 7. 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 apart 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. 8. Carrier arrangement (1) according to claim 7, wherein the end carrier (9) has an end carrier profile that is open on at least one side, wherein an opening (13) of the end carrier profile partially faces the drive energy storage receiving space (11).
  9. 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. 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. 11. Carrier arrangement (1) according to one of claims 7 to 10, wherein - at least one carrier (5), selected from the at least one intermediate carrier (7) and the end carrier (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 another element to the at least one carrier (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. 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. 13. Motor vehicle according to claim 12, wherein the motor vehicle has at least one drive energy storage device (3) which is arranged in the drive energy storage receiving space (11) of the carrier arrangement (1), wherein the drive energy storage device (3) is designed to supply an electric drive of the motor vehicle with electrical energy.

Description

Carrier for a carrier arrangement, method, carrier arrangement and motor vehicle 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, with such a carrier arrangement. In a motor vehicle, in particular a bus, it is known to arrange an electric drive energy storage device by means of a roof structure on a 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 therefore complex and difficult to install. A bus with an electric drive has several electrical lines that connect the drive energy storage device to the electric drive. The bus also has several air conditioning medium lines by means of which the drive energy storage device 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 lines in the roof structure and installing the entire roof structure is complex and can lead to damage to the lines themselves and to personal injury during installation. The lines can also chafe during operation of the bus. Due to the relatively large drive energy storage unit in buses - as well as in other commercial vehicles - which sometimes has a mass of up to 500 kg per battery unit, a large number of electrical cables and air conditioning medium lines are required, which require a relatively 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. The invention is therefore based on the object of creating 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 disadvantages mentioned are reduced, preferably do not occur. 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. The object is achieved in particular by creating 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. The carrier extends in a longitudinal direction of the carrier. The carrier has at least one channel which extends at least partially along the longitudinal direction of the carrier and is integrated into the carrier, in particular into the material of the carrier, 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. The carrier is advantageously constructed integrally and is therefore relatively easy to assemble. Since the cables are integrated into the carrier, in particular into its material, additional insulation elements for the cables can be dispensed with. In particular, this means that less energy is lost, which leads to a greater range. The assembly of the cables is simplified by dispensing with additional insulation elements, in particular damage to the cables and personal injury during assembly can be reduced, preferably avoided. The mass of the carrier is also advantageously reduced. During assembly, in particular, there is no need to thread electrical cables and air conditioning medium cables into the carrier. Furthermore, chafing of the cables can be reduced, preferably avoided. By integrating the cables into the carrier, less installation space is advantageously required inside the motor vehicle, in particular a bus. The integrated cables advantageously increase the bending resistance moment of the carrier, which means that a large number of stiffening elements can be dispensed with. Furthermore, the wall thickness of the carrier can be advantageously reduced. In the context of the present technical teaching, a support is understood to mean a load-bearing component, in particular a support component. Such a support component has a longitudinal support extension and a profile orien