Patent ID: 11858331
Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A body structure for an electrically operated vehicle, the body structure comprising:
a bottom of the vehicle and a top of the vehicle defining a vehicle vertical direction, a vehicle floor sheet-metal part and a body-side sheet-metal profile part;
an installation space for a traction battery, said installation space being open in said vehicle vertical direction in a direction towards said bottom of the vehicle and delimited by said vehicle floor sheet-metal part in a direction towards said top of the vehicle, said installation space configured for insertion of the traction battery from beneath the vehicle;
a housing flange for the traction battery, said housing flange engaging beneath said sheet-metal profile part and being screwed to said sheet-metal profile part from beneath the vehicle at least at one screw position;
a weld nut welded to a side of said sheet-metal profile part facing away from said housing flange, said weld nut being extended by a shaft;
said screw position having a screw bolt being oriented in said vehicle vertical direction and having a screw head, said screw bolt being guided with hole play through a through-channel in said housing flange and through a screw hole in said sheet-metal profile part, said screw bolt being screwed to said weld nut for clamping said housing flange between said screw head of said screw bolt and said sheet-metal profile part;
in an event of a crash, the traction battery being displaced, as a result of the crash, until an inside wall of said housing flange through-channel presses said screw bolt against an opening rim of said sheet-metal profile part screw hole, with shear loading of said screw bolt;
said shaft of said weld nut projecting at least into said sheet-metal profile part screw hole to reduce the shear loading and, in the event of the crash, said screw bolt pressing against said opeing rim of said sheet-metal profile part screw hole with an interposition of said weld nut shaft;
said screw head of said screw bolt being clamped against an opening rim region of said housing flange through-channel, or
an end face of said weld nut shaft facing towards said bolt head of said screw bolt being spaced apart from said bolt head of said screw bolt by an axial clearance;
said inside wall of said housing flange through-channel having a channel portion with a relatively larger diameter and a channel portion with a realtively small diameter, said channel portions merging into one another at an annular shoulder, and said channel portion with a relatively smaller diameter opening on a side facing towards said screw head into an opening rim region of said housing flange through-channel, against which said screw head of said screw bolt being clamped;
said channel portion with a relatively smaller diameter having an axial length being smaller than said axial clearance between said end face of said weld nut shaft and said bolt head of said screw bolt, or
said channel portion with a relatively smaller diameter and said axial clearance being disposed in radial alignment with one another;
in the event of the crash, said channel portion with a relatively larger diameter coming into contact with an outer periphery of said well nut shaft transversely to a screw direction, and said channel portion with a relatively smaller diameter entering said axial clearance;
said housing flange being clamped against said sheet-metal profile part with an interposition of a clamping sleeve, said clamping sleeve being supported on said housing flange by a supporting base, said supporting base having, in the vehicle vertical direction, a lower sleeve portion merging at a transition edge into a radially outwardly protruding circumferential rim flange, or
said lower sleeve portion being in contact with said channel portion with a relatively larger diameter of said housing flange through-channel, said transition edge and a radially outwardly protruding supporting flange being supported on an opening rim region of said housing flange through-channel facing towards said sheet-metal profile part,
or said clamping sleeve being supported on said opening rim region of said sheet-metal profile part screw hole by an upper, in the vehicle vertical direction, sleeve portion.