Power source unit

Patent metadata

Field	Value
Publication number	US-10181620-B2
Application number	US-201313740015-A
Country	US
Kind code	B2
Filing date	Jan 11, 2013
Priority date	Jan 16, 2012
Publication date	Jan 15, 2019
Grant date	Jan 15, 2019

Abstract

A power source unit includes a battery main body including at least one battery cell, an electric device located on the battery main body, and a wall located along a lateral side of parts included in the electric device. The wall is taller than a height of the parts.

First claim

The invention claimed is:

1. A power source unit, comprising:
a battery main body including at least one battery cell, the battery main body comprising a battery main body side surface;
a holding plate disposed on the battery main body side surface;
an electric device abutting a surface of the holding plate that opposes another surface of the holding plate that abuts the battery main body side surface;
a container including a bottom face and a side face extending from the bottom face, the container enclosing the battery main body and the electric device such that at least parts of the electric device are located in a space defined between the battery main body and an inner wall of the side face; and
a wall extending in a direction that intersects with an extending direction of the inner wall, the wall extending from a surface on which the parts are disposed, the wall being located along a lateral side of the parts, and the wall being taller than a height of the parts,
wherein the battery main body side surface, on which the holding plate is placed, is different from another surface of the battery main body on which a terminal of the battery cell is exposed.

2. The power source unit according to claim 1 , wherein the wall is provided along a peripheral edge of the electric device.

3. The power source unit according to claim 1 , wherein the wall comprises an insulative material.

4. The power source unit according to claim 1 , wherein a top end portion of the wall is opposed to the inner wall of the container.

5. The power source unit according to claim 4 , wherein the container further includes a rib formed on the inner wall of the container, the rib extending while being opposed to the wall.

6. The power source unit according to claim 5 , wherein a top end portion of the rib intersects with the top end portion of the wall, when viewed in a direction in which the rib and the wall are opposed.

7. The power source unit according to claim 4 , wherein a gap is defined between the top end portion of the wall and the inner wall.

8. The power source unit according to claim 1 , wherein the container comprises a synthetic resin.

9. The power source unit according to claim 1 , wherein the battery main body includes:
a stack including a plurality of the battery cells aligned, and
wherein the holding plate comprises a pair of holding plates respectively provided on side faces of the stack for holding the stack.

10. The power source unit according to claim 1 , wherein a gap is defined between the inner wall and a top end portion of the wall that is located on an opposing side of the wall from where the wall extends from the surface on which the parts are disposed.

11. The power source unit according to claim 1 , wherein the container further includes a rib disposed on the inner wall of the container, a top end portion of the wall, which is located on an opposing side of the wall from where the wall extends from the surface on which the parts are disposed, is configured to contact the rib.

12. The power source unit according to claim 11 , wherein the container further includes another side face extending from the bottom face, said another side surface of the container, which opposes a front face of the battery main body, being excluded from the rib.

13. The power source unit according to claim 1 , wherein the wall comprises:
a first wall extending from the surface on which the parts are disposed toward the side face of the container; and
a second wall extending from the surface on which the parts are disposed toward the side face of the container, the second wall intersecting with the first wall, and
wherein the first wall and the second wall surround the electric device around the surface on which the parts are disposed.

14. The power source unit according to claim 13 , wherein, in a direction of an extension of the wall, a height of the first wall and a height of the second wall is more than the height of the parts.

15. The power source unit according to claim 1 , wherein, in a direction perpendicular to the bottom face of the container, a height of the side face of the container is more than a height of the battery main body side surface.

16. A power source unit, comprising:
a battery main body including at least one battery cell, the battery main body comprising a battery main body side surface;
a holding plate disposed on the battery main body side surface;
an electric device abutting a surface of the holding plate that opposes another surface of the holding plate that abuts the battery main body side surface;
a container including a bottom surface and a side surface extending from the bottom surface, the container enclosing the battery main body and the electric device such that at least parts of the electric device are located in a space defined between the battery main body and the side surface of the container; and
a base attached to the battery main body, the base comprising:
a base surface on which the parts are disposed; and
a wall extending from the base surface toward the side surface of the container more than an extension of the parts from the base surface toward the side surface of the container,

wherein the battery main body side surface, on which the holding plate is placed, is different from another surface of the battery main body on which a terminal of the battery cell is exposed.

17. The power source unit according to claim 16 , wherein a gap is defined between the side surface of the container and a top end portion of the wall that is located on an opposing side of the wall from where the wall extends from the base surface.

18. The power source unit according to claim 16 , wherein the container further includes a rib disposed on the side surface of the container, a top end portion of the wall, which is located on an opposing side of the wall from where the wall extends from the base surface, is configured to contact the rib.

19. The power source unit according to claim 18 , wherein a gap is defined between the top end portion of the wall and the side surface of the container.

20. The power source unit according to claim 16 , wherein the wall comprises:
a first wall extending from the base surface toward the side surface of the container; and
a second wall extending from the base surface toward the side surface of the container, the second wall intersecting with the first wall, and
wherein the first wall and the second wall surround the electric device on the base around the base surface.

21. The power source unit according to claim 20 , wherein, in a direction of an extension of the wall from the base surface toward the side surface of the container, a height of the first wall and a height of the second wall is more than a height of the parts.

22. The power source unit according to claim 16 , wherein, in a direction perpendicular to the bottom surface of the container, a height of the side surface of the container is more than a height of the battery main body side surface.

Assignees

• Lithium Energy Japan
• Gs Yuasa Int Ltd

Inventors

• Yoshioka Toshiki
• Kusunoki Toshiki

Classifications

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M2010/4271

  Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing · CPC title

• H01M10/4257 Primary

  Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries · CPC title

• H01M50/209 Primary

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

• H01M50/227

  Organic material · CPC title