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Abstract

In the case of a travel trailer having a battery and an axle (13) or a tandem axle, the battery (9) is designed for supplying electricity to a travel drive of a towing vehicle and/or to an optional travel drive of the travel trailer during trailer travel in road traffic, and is arranged as a flat battery (9) below a floor of the travel trailer, in a vehicle frame (1), wherein the height of the battery (9) essentially corresponds to the height of the vehicle frame (1).

Claims

1. A travel trailer having a battery and an axle or a tandem axle, wherein: the battery is designed for supplying electricity to a travel drive of a towing vehicle and/or to an optional travel drive of the travel trailer during trailer travel in road traffic, and is arranged as a flat battery below a floor of the travel trailer, in a vehicle frame, wherein the height of the battery essentially corresponds to the height of the vehicle frame.

2. The travel trailer according to claim 1, wherein: the battery is divided up into a front battery and a rear battery, with the axle or tandem axle being arranged between them.

3. The travel trailer according to claim 2, wherein: at least one transverse beam and/or and/or at least one axle element, for example a torsion tube, is arranged between the front battery and the rear battery.

4. The travel trailer according to claim 2, wherein the front battery and the rear battery are positioned, with regard to a point of rotation of the travel trailer about its axle, in such a manner that a desired support load or a symmetrical weight distribution about the point of rotation exists.

5. The travel trailer according to claim 1, wherein: the vehicle frame consists of outer longitudinal beams that run in the longitudinal direction of the vehicle, and an inner frame composed of inner beams that run in the longitudinal direction of the vehicle, wherein the battery is arranged in the inner frame, between the inner beams.

6. The travel trailer according to claim 5, wherein: the inner frame consists of parallel standard profiles, in particular open profiles.

7. The travel trailer according to claim 5, wherein: the inner beams are connected with transverse beams at their front and rear ends, the latter being arranged between the outer longitudinal beams.

8. The travel trailer according to claim 3, wherein: one or more transverse beams is/are arranged in front of and/or behind the battery or battery parts.

9. The travel trailer according to claim 1, wherein: the battery is a high-performance battery, in particular a rechargeable lithium ion battery.

10. The travel trailer according to claim 1, wherein: wheels of the travel trailer have electric drive motors, which can be supplied with electricity from the battery.

11. The travel trailer according to claim 3, wherein: the front battery and the rear battery are positioned, with regard to a point of rotation of the travel trailer about its axle, in such a manner that a desired support load or a symmetrical weight distribution about the point of rotation exists.

12. The travel trailer according to claim 2, wherein: the vehicle frame consists of outer longitudinal beams that run in the longitudinal direction of the vehicle, and an inner frame composed of inner beams that run in the longitudinal direction of the vehicle, wherein the battery is arranged in the inner frame, between the inner beams.

13. The travel trailer according to claim 3, wherein: the vehicle frame consists of outer longitudinal beams that run in the longitudinal direction of the vehicle, and an inner frame composed of inner beams that run in the longitudinal direction of the vehicle, wherein the battery is arranged in the inner frame, between the inner beams.

14. The travel trailer according to claim 4, wherein: the vehicle frame consists of outer longitudinal beams that run in the longitudinal direction of the vehicle, and an inner frame composed of inner beams that run in the longitudinal direction of the vehicle, wherein the battery is arranged in the inner frame, between the inner beams.

15. The travel trailer according to claim 6, wherein: the inner beams are connected with transverse beams at their front and rear ends, the latter being arranged between the outer longitudinal beams.

16. The travel trailer according to claim 4, wherein: one or more transverse beams is/are arranged in front of and/or behind the battery or battery parts.

17. The travel trailer according to claim 5, wherein: one or more transverse beams is/are arranged in front of and/or behind the battery or battery parts.

18. The travel trailer according to claim 6, wherein: one or more transverse beams is/are arranged in front of and/or behind the battery or battery parts.

19. The travel trailer according to claim 2, wherein: wheels of the travel trailer have electric drive motors, which can be supplied with electricity from the battery.

20. The travel trailer according to claim 3, wherein: wheels of the travel trailer have electric drive motors, which can be supplied with electricity from the battery.

Description

DESCRIPTION OF THE INVENTION

[0033] Further advantages and details of the invention are explained in greater detail using the exemplary embodiment shown in the schematic figure. In this regard, the figure shows a vehicle frame 1 of a travel trailer according to the invention, having the wheels 2 and a coupling head 3 as well as a support wheel 4. The vehicle frame 1 has longitudinal beams 5 that lie on the outside, between which inner beams 6 are arranged and connected, at their ends, with the longitudinal beams 5 that lie on the outside, using transverse beams 7, forming an inner frame 8. A battery 9 is arranged within the inner beams 6, which battery is divided up into a front battery 10 and a rear battery 11, between which a transverse beam 12 is arranged as an axle 13.

[0034] Not shown here, a floor of the travel trailer lies directly on the vehicle frame 1. It is advantageous that due to the low-lying battery 9, the center of gravity is displaced downward. For example, a support load on the coupling head 3 when the travel trailer is not loaded can be established by means of the precise position of the front battery 10 and the rear battery 11 with reference to the axle 13. In the event of an accident, the longitudinal beams 5 that lie on the outside and their distance from the inner beams 6 protect the battery 9 from rapid and severe damage.