Battery carrier frame and method for the production thereof
In the case of a battery support frame for an electric vehicle battery, said support frame being optimized in terms of tightness, compensation of component tolerances and load absorption in particular in the event of a crash, provision is made for a corner element to be arranged as tolerance compensation between a longitudinal profile and a transverse profile, the longitudinal profile and transverse profile being connected together via said corner element.
1. A battery support frame for an electric vehicle comprising:
a longitudinal profile and a transverse profile, wherein the support frame has at least one support frame corner forming an internal angle;
a corner element arranged as tolerance compensation between the longitudinal profile and the transverse profile, the longitudinal profile and the transverse profile being connected together via the corner element,
wherein the longitudinal profile and/or the transverse profile is a multi-chamber profile and has internal webs, and the corner element has, on its outside, at least one reinforcing rib that engages around the outside of the corner element, wherein the at least one reinforcing rib is arranged between a top side and an underside of the corner element at the level of an internal web of the longitudinal profile and/or of the transverse profile such that the reinforcing rib continues the corresponding internal web of the longitudinal profile and/or of the transverse profile.
2. The battery support frame according to claim 1 , wherein the support frame corner has an internal angle and the internal angle is formed by the corner element.
3. The battery support frame according claim 1 , wherein the corner element has a first end side with a first end side plane which faces an end side of the longitudinal member, and a second end side, at an angle to the first end side plane, with a second end side plane which faces an end side of the transverse member.
4. The battery support frame according to claim 3 , wherein the end side of the longitudinal member is placed against the first end side plane of the corner element, and/or the end side of the transverse member bears against the second end side plane of the corner element.
5. The battery support frame according to claim 3 , further comprising one or more form fitting pegs arranged on a first end side of the corner element, the pegs projecting out of the first end side plane and penetrating into the end side of the longitudinal profile, and/or one or more form fitting pegs arranged on the second end side of the corner element, said pegs projecting out of the second end side plane and penetrating into the end side of the transverse profile.
6. The battery support frame according to claim 1 wherein the longitudinal profile and/or the transverse profile is a multi-chamber profile and has internal webs which separate the internal chambers of the multi-chamber profile from one another, and a plurality of form fitting pegs are arranged on a first end side of the corner element and/or on a second end side of the corner element, said pegs penetrating into different internal chambers of the longitudinal profile or the transverse profile facing the pegs.
7. The battery support frame according to claim 6 wherein the form fitting peg(s) is/are undersized compared with the internal dimension of the longitudinal profile or of the transverse profile or compared with internal dimensions of the internal chambers, separated via the internal webs, of the longitudinal profile or of the transverse profile in at least one of a vehicle transverse direction and a vehicle longitudinal direction.
8. The battery support frame according to claim 1 further comprising ribbing, having at least one reinforcing rib, that engages around the support frame corner on an outside of the corner element.
9. The battery support frame according to claim 1 wherein a machining allowance is provided on that end side of the corner element that faces the longitudinal profile or that end side of the corner element that faces the transverse profile.
10. The battery support frame according to claim 1 wherein that region of the at least one support frame corner that is formed by the corner element, the longitudinal profile and the transverse profile is finish machined on the underside.
11. The battery support frame according to claim 1 wherein the longitudinal profile and the transverse profile are hollow chamber profiles, wherein an outwardly directed profile side of one of the two profiles and an inwardly directed profile side of the other of the two profiles is the profile side that seals the support frame towards the outside.
12. A battery support frame for an electric vehicle comprising:
a longitudinal profile and a transverse profile, wherein the support frame has at least one support frame corner forming an internal angle;
a corner element arranged as tolerance compensation between the longitudinal profile and the transverse profile, the longitudinal profile and the transverse profile being connected together via the corner element, the corner element having opposed connecting faces, wherein each of the longitudinal profile and the transverse profile is connected to the corner element by way of the opposed connecting faces,
wherein one of the opposed connecting faces is in an actual abutment orientation deviating from a nominal abutment orientation, and
wherein the other of the opposed connecting faces is oriented towards the respective other of the one of the longitudinal profile and the transverse profile in the nominal abutment orientation.
13. The battery support frame according to claim 12 wherein the longitudinal profile and/or the transverse profile is a multi-chamber profile and has internal webs, and the corner element has, on its outside, at least one reinforcing rib that engages around the outside of the corner element, wherein the at least one reinforcing rib is arranged between a top side and an underside of the corner element at the level of an internal web of the longitudinal profile and/or of the transverse profile such that the reinforcing rib continues the corresponding internal web of the longitudinal profile and/or of the transverse profile.
14. A battery support frame for an electric vehicle comprising:
a longitudinal profile and a transverse profile, wherein the support frame has at least one support frame corner forming an internal angle;
a corner element arranged as tolerance compensation between the longitudinal profile and the transverse profile, the longitudinal profile and the transverse profile being connected together via the corner element, the corner element having opposed connecting faces, wherein each of the longitudinal profile and the transverse profile is connected to the corner element by way of the opposed connecting faces,
wherein one of the opposed connecting faces is in an orientation corresponding to the nominal abutment orientation and,
wherein the other of the opposed connecting faces is correctively finish machined.
15. The battery support frame according to claim 14 wherein the longitudinal profile and/or the transverse profile is a multi-chamber profile and has internal webs, and the corner element has, on its outside, at least one reinforcing rib that engages around the outside of the corner element, wherein the at least one reinforcing rib is arranged between a top side and an underside of the corner element at the level of an internal web of the longitudinal profile and/or of the transverse profile such that the reinforcing rib continues the corresponding internal web of the longitudinal profile and/or of the transverse profile.