Vehicle battery pack protective structure and vehicle having the vehicle battery pack protective structure

Patent metadata

Field	Value
Publication number	US-10632847-B2
Application number	US-201816179556-A
Country	US
Kind code	B2
Filing date	Nov 2, 2018
Priority date	Dec 20, 2017
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

There is provided a vehicle battery pack protective structure which protects a vehicle battery pack including battery stacks disposed in a width direction of a vehicle. The structure includes: a battery pack storage container that stores the vehicle battery pack; and a first upper reinforcing member that extends in a front-rear direction of the vehicle between the battery stacks, and is connected to the battery pack storage container at a front end and a rear end. A first fragile part is formed below an intermediate position of the first the upper reinforcing member.

First claim

The invention claimed is:

1. A vehicle battery pack protective structure which protects a vehicle battery pack including a plurality of battery stacks disposed in a width direction of a vehicle, the vehicle battery pack protective structure comprising:
a battery pack storage container that stores the vehicle battery pack; and
a first upper reinforcing member that extends in a front-rear direction of the vehicle between the battery stacks, and is connected to the battery pack storage container at a front end and a rear end,
wherein a first fragile part is formed below an intermediate position of the first upper reinforcing member, and
wherein the first upper reinforcing member is disposed at a height substantially equal to a height of an upper end of the vehicle battery pack.

2. The vehicle battery pack protective structure according to claim 1 , further comprising:
a second upper reinforcing member connected to a lower surface of the first upper reinforcing member,
wherein the second upper reinforcing member is not provided in a portion, of the first upper reinforcing member, in which the first fragile part is formed.

3. The vehicle battery pack protective structure according to claim 2 , wherein the first upper reinforcing member includes a rectangular steel pipe, and the second upper reinforcing member includes a channel steel which is opened in a direction away from the first upper reinforcing member.

4. The vehicle battery pack protective structure according to claim 3 , wherein a protective plate is disposed between the battery stacks, and
wherein the protective plate is disposed in an opening of the second upper reinforcing member.

5. The vehicle battery pack protective structure according to claim 4 , wherein a second fragile part is formed in the protective plate, in a vicinity of the first fragile part of the first upper reinforcing member.

6. The vehicle battery pack protective structure according to claim 1 , wherein the battery pack storage container comprises a front reinforcement frame at a front end and a rear reinforcement frame at a rear end, the front reinforcement frame and the rear reinforcement frame extending in the width direction, and
wherein the front end of the first upper reinforcing member is connected to the front reinforcement frame, and the rear end of the first upper reinforcing member is connected to the rear reinforcement frame.

7. A vehicle comprising the vehicle battery pack protective structure according to claim 1 .

8. A vehicle comprising the vehicle battery pack protective structure according to claim 2 .

9. A vehicle comprising the vehicle battery pack protective structure according to claim 3 .

10. A vehicle battery pack protective structure which protects a vehicle battery pack including a plurality of battery stacks disposed in a width direction of a vehicle, the vehicle battery pack protective structure comprising:
a battery pack storage container that stores the vehicle battery pack;
a first upper reinforcing member that extends in a front-rear direction of the vehicle between the battery stacks, and is connected to the battery pack storage container at a front end and a rear end; and
a second upper reinforcing member connected to a lower surface of the first upper reinforcing member,
wherein a first fragile part is formed below an intermediate position of the first upper reinforcing member, and
wherein the second upper reinforcing member is not provided in a portion, of the first upper reinforcing member, in which the first fragile part is formed.

11. The vehicle battery pack protective structure according to claim 10 , wherein the first upper reinforcing member includes a rectangular steel pipe, and the second upper reinforcing member includes a channel steel which is opened in a direction away from the first upper reinforcing member.

12. The vehicle battery pack protective structure according to claim 11 , wherein a protective plate is disposed between the battery stacks, and
wherein the protective plate is disposed in an opening of the second upper reinforcing member.

13. The vehicle battery pack protective structure according to claim 12 , wherein a second fragile part is formed in the protective plate, in a vicinity of the first fragile part of the first upper reinforcing member.

14. The vehicle battery pack protective structure according to claim 12 , wherein a plurality of protective plates, each of which including the protective plate, are disposed between the battery stacks.

15. The vehicle battery pack protective structure according to claim 13 , wherein a plurality of protective plates, each of which including the protective plate, are disposed between the battery stacks.

16. A vehicle comprising the vehicle battery pack protective structure according to claim 10 .

17. A vehicle comprising the vehicle battery pack protective structure according to claim 11 .

18. A vehicle battery pack protective structure which protects a vehicle battery pack including a plurality of battery stacks disposed in a width direction of a vehicle, the vehicle battery pack protective structure comprising:
a battery pack storage container that stores the vehicle battery pack; and
a first upper reinforcing member that extends in a front-rear direction of the vehicle between the battery stacks, and is connected to the battery pack storage container at a front end and a rear end,
wherein a first fragile part is formed below an intermediate position of the first upper reinforcing member,
wherein the battery pack storage container comprises a front reinforcement frame at a front end and a rear reinforcement frame at a rear end, the front reinforcement frame and the rear reinforcement frame extending in the width direction, and
wherein the front end of the first upper reinforcing member is connected to the front reinforcement frame, and the rear end of the first upper reinforcing member is connected to the rear reinforcement frame.

Assignees

• Subaru Corp

Inventors

• Yokoyama Yutaka
• Saito Kota

Classifications

• B62D25/087

  Luggage compartments · CPC title

• B60K2001/0416

  Arrangement in the rear part of the vehicle · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• B62D21/15

  having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body (bumpers B60R19/02; shock absorbers in general F16F) · CPC title

• B60L3/0007 Primary

  Measures or means for preventing or attenuating collisions · CPC title