US 11,685,249 B2Granted

Battery pack arrangement structure

AssigneeHonda Motor Co., Ltd.

InventorsKanae Ohkuma, Christopher Lang

Life of this patent

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Abstract

In this battery pack arrangement structure, since a case main body of a battery case is made of a metal by die-casting, not only is it possible to reduce the number of components and the weight by forming, integrally with the case main body, a cross member protruding upward from a case bottom wall and extending in the vehicle width direction and a second fixing portion protruding outward in the vehicle width direction from a case side wall, but it is also possible to enhance the side collision resistance by increasing the strength of the case main body including the cross member and the second fixing portion. Moreover, since the second fixing portion protruding outward in the vehicle width direction from the case side wall is fixed to a floor frame, due to the collision load of a side collision being directly transmitted from the floor frame to the cross member of the case main body and supported, it is possible to ensure the side collision resistance even when the strength of the floor frame is decreased so as to lighten the weight.

Claims4

Dependent claims

A battery pack arrangement structure in which a battery pack housing a drive-use battery for driving an electric vehicle in an interior of a case main body and a cover is disposed in a lower part of a vehicle body,

wherein the vehicle body comprises left and right floor frames extending in a fore-and-aft direction, and a front-side first floor cross member and rear-side second floor cross member connecting the left and right floor frames in a vehicle width direction,
the case main body is made of a metal by die-casting and has a cross member formed integrally therewith, the cross member protruding upward from a case bottom wall and extending in the vehicle width direction, a first fixing portion provided on the cross member is fixed to the second floor cross member, a second fixing portion protruding outward in the vehicle width direction from the case side wall and fixed to the floor frame is formed integrally with the case main body, and
a recess portion recessed toward the cross member is formed in the cover, the recess portion and the second floor cross member at least partially overlapping one another when viewed in an up-and-down direction.

Dependencies are inferred from the claim text.

Facts

Application: 17/271,335Filed 4 Jul 2019
Priority: JP JP2018-15893828 Aug 2018
Published: US 2021/0339617 A14 Nov 2021
Granted: 27 Jun 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

B60K 1/04
Arrangement or mounting of electrical propulsion units: of the electric storage means for propulsion
B60K 6/40
Characterised by apparatus, components or means specially adapted for HEVs: characterised by the assembly or relative disposition of components
B60L 50/64
Using power supplied by batteries: constructional details of batteries specially adapted for electric vehicles
B62D 21/15
Understructures, i.e. chassis frame on which a vehicle body may be mounted: having impact absorbing means, e.g. a frame designed to permanently or…