BATTERY BOX, TRACTION BATTERY WITH THIS BATTERY BOX AND VEHICLE WITH THIS TRACTION BATTERY
Patent Information
- Application Number
- DE502020010153
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-03-22
- Filing Date
- 2020-03-20
- Publication Date
- 2025-01-23
- Estimated Expiration
- 2040-03-20
Claims
1. Battery case for a traction battery (102), having a lower housing part (3) which has housing side walls (3.1, 3.2, 3.3, 3.4) and a housing bottom (2.5), having a housing lid (2) which can close the lower housing part (3.5) tightly and is designed to be detachable therefrom, having a stiffening structure (7) with stiffening profiles (7.1, 7. 2), wherein the stiffening structure (7) is provided between the housing bottom (2.5) and the housing lid (2) and is non-detachably connected to the housing lid (2), wherein the stiffening profiles (7.1, 7.2) are connected to the housing lid (2) with a material bond, characterized in that the stiffening profiles (7.1, 7.2) each form closed first hollow profiles (70.1) together with the housing lid (2).
2. Battery case according to claim 1, characterized in that the stiffening profiles (7.1, 7.2) are connected to the housing lid (2) in a materially bonded manner via a, more particularly discontinuous, welded connection (5.2), more particularly spot welds.
3. Battery case according to one of claims 1 to 2, characterized in that at least one first hollow profile (70.1) has a bead (8), more particularly a closed and / or straight bead, in the housing lid (2).
4. Battery case according to one of claims 1 to 3, characterized in that the stiffening profiles (7.1, 7.2) have a hat profile shape, the respective legs (9.1, 9.2) of which are connected to the housing lid (2) in a materially bonded manner.
5. Battery case according to one of claims 1 to 4, characterized in that the stiffening profiles (7.1, 7.2) run parallel to one another.
6. Battery case according to one of claims 1 to 5, characterized in that stiffening profiles (7.1 or 7.2) run parallel to a side wall (3.1, 3.3 or 3.2, 3.4) of the lower housing part (3).
7. Battery case according to one of claims 1 to 6, characterized in that the battery case (1) has a support structure (4) for mounting battery modules (6) of the traction battery (102), wherein the support structure (4) is fastened to the lower housing part (3).
8. Battery case according to claim 7, characterized in that stiffening profiles (7.1, 7.2) are provided directly above the support structure (4), more particularly above longitudinal and / or transverse beams (4.1, 4.2).
9. Battery case according to claim 7 or 8, characterized in that at least one stiffening profile (7.1, 7.2) is designed for clamping a mounting flange (12.1, 12.2) of a battery module (6) resting on the support structure (4).
10. Battery case according to one of claims 1 to 9, characterized in that the lower housing part (3) has a flange (10) running around it, on which the housing lid (2) rests.
11. Battery case according to claim 10, characterized in that the housing lid (2) has a closed second hollow profile (70.2) on the outside in the region of the flange (10).
12. Battery case according to one of claims 1 to 11, characterized in that the stiffening profiles (7.1, 7.2) project into the lower housing part (3) at least in some areas or in that the stiffening profiles (7.1, 7.2) extend outside the lower housing part (3).
13. Traction battery having a battery case (1) according to one of claims 1 to 12.
14. Vehicle having a body floor (101) and having a battery case (1) according to one of claims 1 to 12, characterized in that the battery case (1) is arranged below the body floor (101)