Energy storage apparatus

Patent metadata

Field	Value
Publication number	US-11799146-B2
Application number	US-201917251981-A
Country	US
Kind code	B2
Filing date	Jun 21, 2019
Priority date	Jun 22, 2018
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

In an embodiment, an energy storage apparatus includes a plurality of energy storage devices arranged in a first direction and a pair of insulators extending in the first direction along the plurality of energy storage devices and arranged at an interval from each other in a second direction orthogonal to the first direction, and each of the plurality of energy storage devices has an outer surface facing a third direction orthogonal to the first direction and the second direction, and each of the pair of insulators has a space forming part extending from a position on the outer surface in the first direction and the third direction, and forming a space between a facing surface, on which the energy storage apparatus is installed, and the outer surface.

First claim

The invention claimed is:

1. An energy storage apparatus, comprising:
a plurality of energy storage devices arranged in a first direction; and
a pair of insulators extending in the first direction along the plurality of energy storage devices and arranged at an interval from each other in a second direction orthogonal to the first direction,
wherein each of the plurality of energy storage devices includes an outer surface facing a third direction orthogonal to the first direction and the second direction, and
wherein each of the pair of insulators includes:
a first portion extending in the first direction and the second direction; and
a second portion bending from the first portion and extending from a position on the outer surface in the third direction, the second portion forming a space forming part which includes a space between a facing surface, on which the energy storage apparatus is installed, and the outer surface.

2. The energy storage apparatus according to claim 1 , wherein between the adjacent energy storage devices, a flow channel is formed which opens between the outer surfaces when the outer surfaces are viewed in the third direction and through which a fluid for temperature adjustment is allowed to flow.

3. The energy storage apparatus according to claim 2 , further comprising an adjacent member arranged outwardly in the first direction with an energy storage device located at an endmost position of the plurality of energy storage devices,
wherein one of the pair of space forming parts has a seal rib protruding from an end portion close to the adjacent member in the first direction toward an other of the pair of space forming parts and extending along the third direction,
wherein the adjacent member has, between the pair of space forming parts in the second direction, a connection part extending in the first direction away from the energy storage device located at the endmost position and connectable to a fluid supply member capable of supplying the fluid,
wherein the connection part has a seal rib facing surface extending in the third direction at a position facing the seal rib in the second direction in an outer surface facing the space forming part, and
wherein the seal rib is in contact with the seal rib facing surface.

4. The energy storage apparatus according to claim 3 , wherein the seal rib is in contact with the seal rib facing surface in a state of being curved so that an extension end is displaced to either one side or an other side in the first direction due to elastic deformation.

5. An energy storage apparatus, comprising:
a plurality of energy storage devices arranged in a first direction; and
a pair of insulators extending in the first direction along the plurality of energy storage devices and arranged at an interval from each other in a second direction orthogonal to the first direction,
wherein each of the plurality of energy storage devices includes an outer surface facing a third direction orthogonal to the first direction and the second direction,
wherein each of the pair of insulators includes:
an insulator main body portion extending in the first direction along the plurality of energy storage devices;
a first portion extending from the insulator main body portion along the outer surface, and extending in the first direction and the second direction; and
a second portion bending from the first portion, and extending in the third direction from a position on the outer surface toward a facing surface on which the energy storage apparatus is installed, and

wherein a space surrounded by the outer surface, the second portions of the pair of insulators, and the facing surface extends in the first direction.

6. The energy storage apparatus according to claim 1 , wherein the second portion includes an inclined part that bends downward from the first portion at an incline with respect to the second direction.

7. The energy storage apparatus according to claim 1 , wherein the second portion includes a parallel part that extends parallel to the third direction.

8. The energy storage apparatus according to claim 1 , wherein the second portion includes:
an inclined part that bends downward from the first portion at an incline with respect to the second direction; and
a parallel part that extends from the incline part downward parallel to the third direction.

9. The energy storage apparatus according to claim 8 , wherein the parallel part includes a seal rib that extends along the parallel part in the third direction.

10. The energy storage apparatus according to claim 9 , wherein the seal rib includes an extension end extending inward in the second direction and in contact with the inclined part.

11. The energy storage apparatus according to claim 1 , further comprising a pair of connection members arranged on both sides of the plurality of energy storage devices in the second direction,
wherein each of the pair of connection members includes:
a connection member main body extending in the first direction along the plurality of energy storage devices;
a first extension portion extending in the second direction and also extending along the plurality of energy storage devices from an end portion of the connection member main body on an other side in the third direction; and
a second extension portion extending from the first extension portion to a position on an other side in the third direction.

12. The energy storage apparatus according to claim 11 , wherein each of the pair of connection members further includes a connected part extending in the second direction from the end portion of the connection member main body in the first direction.

13. The energy storage apparatus according to claim 11 , wherein the second extension portion extends along the third direction from at least a part of the first extension portion in the third direction.

14. The energy storage apparatus according to claim 11 , wherein the second extension portion includes a component in the third direction.

15. The energy storage apparatus according to claim 11 , wherein the second extension portion includes:
an inclined part extending along the third direction in a state of being continuous with the first extension portion and inclined with respect to the third direction; and
a parallel part that is continuous with the inclined part and extends parallel to the third direction.

16. The energy storage apparatus according to claim 1 , further comprising an adjacent member that has a structure such that, between the adjacent member and an adjacent energy storage device of the plurality of energy storage devices, a plurality of flow channels for which a fluid for temperature adjustment,
wherein the adjacent member includes:
a plate-shaped main body portion located between the adjacent energy storage device of the plurality of energy storage devices and a holding member; and
a partition wall part extending from the plate-shaped main body portion to an outer position in the third direction.

17. The energy storage apparatus according to claim 5 , wherein the second portion includes:
an inclined part that bends downward from the first portion at an incline with respect to the second direction; and
a parallel part that extends from the incline part downward parallel to the third direction.

18. The energy storage apparatus according to claim 5 , further comprising a pair of connection members arranged on both sides of the plurality of energy storage devices in the second direction,
wherein each of the pair of connection mem

Assignees

• Gs Yuasa Int Ltd

Inventors

• Nishimura Yosuke
• Naganawa Nobuyuki
• Yoshioka Kenta
• Toshioka Yoshimasa
• Yuasa Eiji

Classifications

• H01M10/647 Primary

  Prismatic or flat cells, e.g. pouch cells · CPC title

• H01M10/6557

  arranged between the cells · CPC title

• H01M50/209

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

• H01G2/04

  specially adapted for mounting on a chassis · CPC title

• H01G2/08

  Cooling arrangements; Heating arrangements; Ventilating arrangements · CPC title