Onboard battery

Patent metadata

Field	Value
Publication number	US-10879507-B2
Application number	US-201816221247-A
Country	US
Kind code	B2
Filing date	Dec 14, 2018
Priority date	Mar 27, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

An onboard battery includes a battery module, a housing case, and a detector. In the battery module, a battery cell is disposed. The housing case has a through hole and houses the battery module. The detector includes a fixture portion fixed to the battery module and an elastically deformable portion that is elastically deformable. When an impact is applied and the battery module and the detector are displaced relative to the housing case by a certain amount or larger, the elastically deformable portion is elastically deformed to pass through the through hole.

First claim

The invention claimed is:

1. An onboard battery, comprising:
a battery module in which a battery cell is disposed;
a housing case that has a through hole in a side of the housing case and that houses the battery module; and
a detector including:
a fixture portion fixed to the battery module; and
an elastically deformable portion that is elastically deformable and configured to pass through the through hole by deforming a shape of the elastically deformable portion,

wherein, when an impact is applied and the battery module and the detector are displaced relative to the housing case by a certain amount or larger, the elastically deformable portion is elastically deformed to pass through the through hole.

2. The onboard battery according to claim 1 , wherein the detector is provided with a connecting portion that connects the fixture portion and the elastically deformable portion,
wherein the elastically deformable portion comprises two elastic portions that are protruded from an end portion of the connecting portion in such directions as to become apart from each other, and
wherein the two elastic portions are elastically deformable in such directions as to move toward and away from each other.

3. The onboard battery according to claim 1 , wherein the detector comprises a first detector and a second detector that are different in shape from each other and that each perform detection according to a direction of the applied impact.

4. The onboard battery according to claim 2 , wherein the detector comprises a first detector and a second detector that are different in shape from each other and that each perform detection according to a direction of the applied impact.

5. The onboard battery according to claim 3 , wherein the housing case is formed by a plurality of wall portions,
wherein the through hole comprises two through holes,
wherein one of the wall portions is provided with the two through holes, and
wherein an elastically deformable portion of the first detector and an elastically deformable portion of the second detector a capable of passing through corresponding holes of the two through holes.

6. The onboard battery according to claim 4 , wherein the housing case is formed by a plurality of wall portions,
wherein the through hole comprises two through holes,
wherein one of the wall portions is provided with the two through holes, and
wherein an elastically deformable portion of the first detector and an elastically deformable portion of the second detector are capable of passing through corresponding holes of the two through holes.

7. The onboard battery according to claim 5 , wherein the first detector and the second detector are disposed side by side in a left-right direction or a front-rear direction.

8. The onboard battery according to claim 6 , wherein the first detector and the second detector are disposed side by side in a left-right direction or a front-rear direction.

9. The onboard battery according to claim 1 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

10. The onboard battery according to claim 2 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

11. The onboard battery according to claim 3 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

12. The onboard battery according to claim 4 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

13. The onboard battery according to claim 5 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

14. The onboard battery according to claim 6 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

15. The onboard battery according to claim 7 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

16. The onboard battery according to claim 8 , further comprising:
a suspension member of which a portion is fixed to the housing case and another portion is fixed to the battery module,
wherein the battery module is housed in the housing case in such a manner that the battery module is suspended in the housing case by the suspension member.

17. The onboard battery according to claim 1 , wherein the elastically deformable portion comprises elastic portions, which are protruded from an end portion of a connecting portion of the battery module and the elastically deformable portion, in directions to become apart from each other.

18. The onboard battery according to claim 17 , wherein the elastic portions are elastically deformable in directions as to move toward and away from each other.

19. An onboard battery, comprising:
a battery module in which a battery cell is disposed;
a housing case that has a through hole in a side of the housing case and that houses the battery module; and
a detector including:
a fixture portion fixed to the battery module; and
an elastically deformable portion that is elastically deformable, at least a part of the elastically deformable portion or a connecting portion that connect the elastically deformable portion and the fixture portion being inserted in the through hole,

wherein, when an impact is applied and the battery module and the detector are displaced relative to the housing case by a certain amount or larger, the elastically deformable portion is elastically deformed to pass through the through hole.

20. An onboard battery, comprising:
a battery module in which a battery cell is disposed;
a housing case that has at least one through hole and that houses the battery module; and
at least one detector that comprises a fixture portion fixed to the battery module and an elastically deformable portion that is elastically deformable,
wherein, when an impact is applied and the battery module and the at least one detector are displaced relative to the housing case by a certain amount or larger, the elastically deformable portion is elastically deformed to pass through the at least one th

Assignees

• Subaru Corp

Inventors

• Iida Minoru

Classifications

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title

• H01M50/209

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M10/488

  Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density · CPC title