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

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.