Frame assembly for vehicle

Inventors: Chang Un Jeon (Hwaseong-si, KR); Jang Won Hong (Hwaseong-si, KR); Seung Tae Song (Suwon-si, KR)

Assignees: HYUNDAI MOTOR COMPANY; KIA CORPORATION

B62D25/025 B62D25/04

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Quick Facts

Patent No.: US 12668308
App. No.: 18/383,568
Granted: Jun 30, 2026
Kind: B2

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Abstract

A frame assembly for a vehicle includes a body side sill provided in an outward direction of a body floor of the vehicle, extending in a longitudinal direction of the vehicle to form an internal space, and including an internal reinforcing portion fixed to the internal space, and a center pillar provided at a side of the vehicle to extend in a vertical direction of the vehicle, disposed outside the body side sill to cover the body side sill from the outside thereof, and coupled to the body side sill to form a load path for side collision of the vehicle.

Claims (27)

1 . A frame assembly for a vehicle, the frame assembly comprising:

a body side sill provided in an outward direction of a body floor of the vehicle, extending in a longitudinal direction of the vehicle to form an internal space, and including an internal reinforcing portion fixed to the internal space;

a center pillar provided at a side of the vehicle to extend in a vertical direction of the vehicle, disposed outside the body side sill to cover the body side sill from the outside thereof, and coupled to the body side sill to form a load path for side collision of the vehicle,

wherein the body side sill includes:

a first external panel extending in the longitudinal direction of the vehicle;

a second external panel disposed inside the first external panel; and

a center panel configured to separate the internal space of the body side sill between the first external panel and the second external panel,

wherein the first external panel and the second external panel are coupled to form the internal space; and

a side sill internal panel provided in an outward direction of the body floor to be connected to the body floor in a width direction of the vehicle, and configured to cover the second external panel of the body side sill,

wherein the side sill internal panel covers the body side sill at a distance in a lateral direction of the body side sill.

2 . The frame assembly of claim 1 , wherein the internal reinforcing portion includes:

a first internal panel extending in the longitudinal direction of the vehicle; and

a second internal panel disposed inside the first internal panel in the internal space of the body side sill,

wherein each of the first internal panel and the second internal panel is fixed to one of internal surfaces of the first external panel and the second external panel.

3 . The frame assembly of claim 1 , wherein the center pillar is coupled to the first external panel.

4 . The frame assembly of claim 2 , wherein each of the first internal panel and the second internal panel is disposed so that center portions of the first internal panel and the second internal panel are bent and the respective center portions face each other and are in contact with each other in the internal space of the body side sill.

5 . The frame assembly of claim 2 , wherein respective center portions of the first internal panel and the second internal panel are connected to the center panel.

6 . The frame assembly of claim 2 , wherein a first through hole configured to allow the first internal panel and the center pillar to be bonded by inserting a bonding mechanism into the first through hole is formed in the first external panel.

7 . The frame assembly of claim 6 , wherein a plurality of first through holes are spaced from each other in the longitudinal direction of the vehicle.

8 . The frame assembly of claim 1 , wherein the body side sill and the internal reinforcing portion are made of a steel material.

9 . The frame assembly of claim 1 , wherein the side sill internal panel is coupled to the body side sill in the width direction of the vehicle so that the center pillar, the body side sill, and the side sill internal panel form the load path for the side collision of the vehicle.

10 . The frame assembly of claim 9 , wherein the side sill internal panel is coupled to the body side sill in a state in which the body side sill and the center pillar are coupled.

11 . The frame assembly of claim 1 , further including a reinforcing panel connecting the body floor and the side sill internal panel,

wherein a first end portion of the reinforcing panel supports a lower surface of the body floor, and a second end portion thereof supports an internal surface of the side sill internal panel.

12 . The frame assembly of claim 1 , wherein the body side sill and the internal reinforcing portion, the center pillar and the body side sill, and the side sill internal panel are weld-coupled.

13 . The frame assembly of claim 6 , wherein a second through hole is formed in the second external panel, a third through hole is formed in the center panel, and the second through hole and the third through hole are formed at corresponding positions laterally so that a bonding mechanism is inserted into the second through hole and the third through hole to bond the second external panel and the side sill internal panel.

14 . The frame assembly of claim 1 , wherein an adhesive is applied between the side sill internal panel and the body side sill to attach the side sill internal panel and the body side sill.