Vehicle understructure

Abstract

In this lower structure of a vehicle: a fuel tank (2) is disposed behind a battery pack (1); a connector (3) protrudes from the battery pack (1) toward the fuel tank (2); the battery pack (1) is provided with an expansion portion (4) adjacent to the connector (3) and facing an opposing surface portion (21) of the fuel tank (2); and the connector (3) faces a recessed portion (22) formed in the fuel tank (2), with a gap therebetween. As a result, in the event of a vehicle collision, if the fuel tank (2) approaches the battery pack (1) and a distal end surface of the expansion portion (4) abuts the opposing surface portion (21) of the fuel tank (2), a gap is maintained between the connector (3) and the recessed portion (22) of the fuel tank (2).

Claims

1. A vehicle understructure in which a battery pack containing battery cells and a fuel tank are arranged adjacent to each other in the front-rear direction of the vehicle, and a connector for connecting the terminals of a high-voltage cable from the battery pack protrudes toward the fuel tank, The battery pack is provided with a bulge that is arranged alongside the connector in the vehicle width direction, facing the fuel tank, and bulging forward or backward in the vehicle's longitudinal direction toward the fuel tank. The fuel tank is provided with a recess at a position opposite to the connector, In a vehicle understructure characterized in that, with the bulging portion of the battery pack in contact with the fuel tank, a gap is secured between the connector and the recess of the fuel tank, The battery pack consists of a lower housing and an upper housing, and the flanges of the lower housing and the upper housing are connected to each other. The vehicle understructure is characterized in that the bulging portion extends at least to a position near the tip of the flange in the longitudinal direction of the vehicle.

2. The lower structure of a vehicle according to claim 1, characterized in that the flange has a shape in which the tip is folded back in the vertical direction to form a bent portion.

3. A vehicle understructure in which a battery pack containing battery cells and a fuel tank are arranged adjacent to each other in the front-rear direction of the vehicle, and a connector for connecting the terminals of a high-voltage cable from the battery pack protrudes toward the fuel tank, The battery pack is provided with a bulge that is arranged alongside the connector in the vehicle width direction, facing the fuel tank, and bulging forward or backward in the vehicle's longitudinal direction toward the fuel tank. The fuel tank is provided with a recess at a position opposite to the connector, In a vehicle understructure characterized in that, with the bulging portion of the battery pack in contact with the fuel tank, a gap is secured between the connector and the recess of the fuel tank, The vehicle's understructure is characterized in that the bulging portion also serves as a fixing bracket to which an under cover covering the bottom surface of the battery pack is fixed.

4. The vehicle understructure according to any one of claims 1 to 3, characterized in that the bulging portion has a surface contact structure with respect to the fuel tank.

5. The vehicle understructure according to claim 4, characterized in that the portion of the fuel tank facing the bulge is provided with an opposing surface portion that is substantially parallel to the bulge when viewed from above.

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