Power storage apparatus

Patent metadata

Field	Value
Publication number	US-9252410-B2
Application number	US-71718110-A
Country	US
Kind code	B2
Filing date	Mar 4, 2010
Priority date	Mar 6, 2009
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A power storage apparatus includes a power storage module having a plurality of power storage elements which are aligned in one direction; a device placed adjacently to the power storage module in the direction of the alignment of the power storage elements; a high-voltage cable used in charge and discharge of the power storage module; and a support structure configured to support the high-voltage cable at a plurality of points to position the high-voltage cable along a reference path. The high-voltage cable is configured to electrically connect an electrode terminal of the power storage module to the device. The electrode terminal is one of two electrode terminals of the power storage module and is located on a farther side of the power storage module from the device.

First claim

What is claimed is:

1. A power storage apparatus comprising:
a power storage module including a plurality of power storage elements which are aligned in one direction;
a bus bar module configured to electrically connect the power storage elements;
a device placed adjacently to the power storage module in the direction of the alignment of the power storage elements;
a high-voltage cable used in charge and discharge of the power storage module and configured to electrically connect a first electrode terminal of the power storage module to the device, the first electrode terminal being one of two electrode terminals of the power storage module and being located on a farther side of the power storage module from the device; and
a connection terminal mechanically connected to the first electrode terminal and having an elongate shape that extends downward from the first electrode terminal,
wherein:
an end face of the high-voltage cable is directly connected to a side edge of a lower portion of the connection terminal,
the bus bar module includes a plurality of support portions supporting the high-voltage cable at a plurality of points, each support portion of the plurality of support portions including inner wall surfaces defining a directly upward facing opening;
the inner wall surfaces include first and second substantially planar surfaces, the first and second substantially planar surfaces being substantially parallel to one another in the region of the opening;
the bus bar module positions the high-voltage cable along a reference path;
the bus bar module is configured such that when the bus bar module electrically connects the power storage elements, the high-voltage cable is fittable from above the bus bar module into each of the support portions;
the high-voltage cable is arranged between the first and second substantially planar surfaces and is in direct contact with each of the first and second substantially planar surfaces;
the first and second substantially planar surfaces form a space therebetween, the space allowing movement of the high-voltage cable in upward and downward directions when the plurality of support portions support the high-voltage cable; and
the high-voltage cable is arranged along a straight line from the side edge of the lower portion of the connection terminal to the support portion of the plurality of support portions located nearest to the connection terminal.

2. The power storage apparatus according to claim 1 , wherein:
the bus bar module has a plurality of bus bars configured to electrically connect the power storage elements, and
the support portions are provided on one surface of the bus bar module opposite to other surface of the bus bar module facing the power storage elements.

3. The power storage apparatus according to claim 1 , wherein a connecting position of the connection terminal and the first electrode terminal is located above a connecting position of the high-voltage cable and the device, and
wherein the plurality of support portions lower a level where the high-voltage cable is located from the connecting position of the connection terminal and the first electrode terminal toward the connecting position of the high-voltage cable and the device.

4. The power storage apparatus according to claim 1 , wherein when the bus bar module electrically connects the power storage elements, the bus bar module is positioned in a vertical direction and includes a top portion and a bottom portion; and
wherein the top portion of the bus bar module electrically connects the power storage elements and the bottom portion of the bus bar module includes the plurality of support portions.

5. The power storage apparatus according to claim 4 , wherein when the bus bar module electrically connects the power storage elements, the high-voltage cable is fittable from the top portion of the bus bar module into each of the support portions located in the bottom portion.

6. A power storage apparatus comprising:
a power storage module including a plurality of power storage elements which are aligned in one direction;
a bus bar module configured to electrically connect the power storage elements;
a device placed adjacently to the power storage module in the direction of the alignment of the power storage elements;
a high-voltage cable used in charge and discharge of the power storage module and configured to electrically connect a first electrode terminal of the power storage module to the device, the first electrode terminal being one of two electrode terminals of the power storage module and being located on a farther side of the power storage module from the device; and
a connection terminal mechanically connected to the first electrode terminal and having an elongate shape that extends downward from the first electrode terminal,
wherein:
an end face of the high-voltage cable is directly connected to a side edge of a lower portion of the connection terminal,
the bus bar module includes a plurality of support portions supporting the high-voltage cable at a plurality of points, each support portion of the plurality of support portions including inner wall surfaces defining a directly upward facing opening;
the inner wall surfaces include first and second substantially planar surfaces, the first and second substantially planar surfaces being substantially parallel to one another in the region of the opening;
the bus bar module positions the high-voltage cable along a reference path;
the bus bar module is configured such that when the bus bar module electrically connects the power storage elements, the high-voltage cable is fittable from above the bus bar module into each of the support portions;
the high-voltage cable is arranged between the first and second substantially planar surfaces and is in direct contact with each of the first and second substantially planar surfaces;
the first and second substantially planar surfaces form a space therebetween, the space allowing movement of the high-voltage cable in upward and downward directions;
each support portion of the plurality of support portions has a different shape and size than other support portions of the plurality of support portions; and
the high-voltage cable is arranged along a straight line from the side edge of the lower portion of the connection terminal to the support portion of the plurality of support portions located nearest to the connection terminal.

Assignees

• Kosaki Akihiro
• Iwabe Masaaki
• Iida Kenji
• Azuma Shinsuke
• Ogasawara Shigeyuki
• Toyota Motor Co Ltd
• Yazaki Corp

Inventors

• Kosaki Akihiro
• Iwabe Masaaki
• Iida Kenji
• Azuma Shinsuke
• Ogasawara Shigeyuki

Classifications

• H01M50/296 Primary

  characterised by terminals of battery packs (terminals of batteries H01M50/543) · CPC title

• H01M50/507 Primary

  comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules · CPC title

• H01M50/298

  characterised by the wiring of battery packs · CPC title

• H01M50/209

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

• H01M2/1022

  Electricity · mapped topic