Onboard power supply apparatus

Patent metadata

Field	Value
Publication number	US-9899647-B2
Application number	US-201515518941-A
Country	US
Kind code	B2
Filing date	Oct 13, 2015
Priority date	Oct 15, 2014
Publication date	Feb 20, 2018
Grant date	Feb 20, 2018

Abstract

An onboard power supply apparatus includes: power storage modules each including power storage devices; a pair of brackets configured to come into contact with respective ends of the power storage modules vertically stacked so as to fix at least an upper power storage module to a vehicle; and an insertion portion that is disposed between at least one of the pair of brackets and an end of one of the power storage modules located between terminal portions of the vertically stacked power storage modules, a connecting member used for connecting the terminal portions of the vertically stacked power storage modules being inserted in the insertion portion.

First claim

The invention claimed is:

1. An onboard power supply apparatus comprising:
power storage modules each including power storage devices arranged in a plane orthogonal to a predetermined direction in which the power storage devices extend;
a pair of brackets configured to come into contact with respective ends of the power storage modules vertically stacked so as to fix at least an upper power storage module to a vehicle; and
an insertion portion that is disposed between at least one of the pair of brackets and an end of one of the power storage modules located between terminal portions of a vertically stacked power storage modules, a connecting member used for connecting the terminal portions of the vertically stacked power storage modules being inserted in the insertion portion, wherein
each of the power storage modules includes: bus bars electrically connecting the power storage devices; and terminal portions connected to the bus bars so as to serve as electrode terminals of the power storage module, and
the terminal portions are disposed at respective ends of each power storage module in a direction in which a plurality of power storage devices are arranged, wherein
the insertion portion is a recessed portion disposed at a part of the one of the brackets in a direction apart from the end of the one power storage module, and
the recessed portion has a rib shape extending in a stacking direction of the power storage modules.

2. The onboard power supply apparatus according to claim 1 , wherein
the one bracket includes:
a first fixing portion fixed to the vehicle; and
a second fixing portion coming into contact with the respective ends of the vertically stacked power storage modules, the second fixing portion provided with the insertion portion, and
on a side of the end of the power storage module, the second fixing portion extends from the first fixing portion up to at least the terminal portion located above the end of the upper power storage module in a stacking direction of the power storage modules.

3. The onboard power supply apparatus according to claim 2 , further comprising
a cover that extends from the second fixing portion toward the upper power storage module, and covers above the terminal portion of the upper power storage module.

4. The onboard power supply apparatus according to claim 1 , wherein
each power storage module includes:
a holder including a plurality of apertures into which the respective power storage devices are inserted, the holder holding one ends of the power storage devices;
first bus bars including a plurality of first connecting portions formed corresponding to the respective power storage devices arranged in the plane such that the first connecting portions are connected to first end portions serving as one electrodes of the power storage devices at one ends of the power storage devices that are disposed in the holder; and
second bus bars including a plurality of second connecting portions formed corresponding to the respective power storage devices arranged in the plane such that the second connecting portions are connected to second end portions serving as the other electrodes of the power storage devices at the other ends of the power storage devices,
the terminal portions include:
a first terminal portion that is connected to the first bus bars, and is disposed at one end of the power storage module in a direction in which the plurality of power storage devices are arranged; and
a second terminal portion that is connected to the second bus bars, and is disposed at the other end of the power storage module in the direction in which the plurality of power storage devices are arranged, and
the one bracket is coupled to an end of the holder in the direction in which the plurality of power storage devices are arranged.

Assignees

• Toyota Motor Co Ltd
• Toyota Jidoshokki Kk

Inventors

• Murai Daisuke
• Fujiwara Nobuyoshi
• Ohgitani Ikkei

Classifications

• H01M2220/20

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

• B60K2001/0405

  characterised by their position · CPC title

• B60R16/04 Primary

  Arrangement of batteries · CPC title

• H01M50/516

  by welding, soldering or brazing · CPC title

• H01M50/522

  Inorganic material · CPC title