Hollow-chamber profile for fastening a battery module

Abstract

A hollow-chamber profile for fastening a battery module in a vehicle is disclosed, wherein the hollow-chamber profile has a first side wall and a second side wall which lies opposite the first side wall, wherein the first side wall and the second side wall are connected to one another via a bottom wall, and, furthermore, the hollow-chamber profile has a top wall which lies opposite the bottom wall, wherein the top wall is designed to interact with at least one fastening means, in particular a screw, for fastening the battery module, characterized in that the hollow-chamber profile has at leastone intermediate wall which extends between the side walls from the top wall in the direction of the bottom wall, wherein a wall thickness of the at least one intermediate wall is dimensioned in sucha way that the fastening means can be introduced at least partially into the wall thickness of the at least one intermediate wall.

Description

technical field [0001] The invention relates to an extruded cavity profile for fastening a battery module in a vehicle. Background technique [0002] Aluminum extruded profiles are currently used to fasten the battery modules in the high-voltage store, to which the battery modules are clipped. In this case, the aluminum extruded profile generally has two side walls extending essentially parallel to one another, which are connected to one another by a bottom wall and which are on the side opposite the bottom wall Closed by the cover wall. In order to be able to screw in an extruded profile, firstly a plurality of bore holes are applied into the cover wall of the extruded profile and then the threaded sleeves are pressed or welded into these bore holes, or with press-in / The strips of the welded-in nuts are inserted or inserted into these drilled holes. [0003] Due to the large number of individual parts that have to be joined, the insertion of the threaded sleeve or the n...

AI Technical Summary

Problems solved by technology

[0003] Inserting threaded sleeves or nuts here results in high production costs and increased assembly effort due to the large number of individual parts that have to be joined

Furthermore, the extruded profile is weakened, in particular in the region of the force introduction, due to the insertion of the threaded sleeve, so that when the sleeve is pressed in, material cracks can occur which can lead to defective fastening of the battery module.

[0004] Furthermore, the insertion of weld nuts into the profile results in a very heavy component

Furthermore, the high surface pressure in the case of strips and the heat-affected zone during welding also lead to a weakening of the profile, especially in the region of the force introduction, so that it can be used with other known alternative fastening possibilities Reduced lifetime and does not ensure reliable fixation of the battery module

[0005] Furthermore, in the case of known profiles where the fastening means for the battery modules are tightened more than elastically, the profile may be deformed as a whole, which may also lead to premature failure

In order to prevent such deformations, the profile must be constructed as strong as possible and thus result in a high weight and thus high costs

Images