Plate for battery stack

Patent metadata

Field	Value
Publication number	US-12424712-B2
Application number	US-202217733360-A
Country	US
Kind code	B2
Filing date	Apr 29, 2022
Priority date	Apr 30, 2021
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

There is provided a plate for a battery stack including: a plate-shaped terminal to which an electric wire is connected; and a plate-shaped housing having an accommodating recess where the terminal is accommodated. The accommodating recess includes a retaining hole, and the terminal includes a connection portion that is electrically connected to a counterpart member, and a retaining piece that is inserted into the retaining hole and locked to the retaining hole.

First claim

What is claimed is:

1. A plate for a battery stack, comprising:
a flat-shaped terminal to which an electric wire is connected;
a plate-shaped housing including a flat upper plate surface and a flat lower plate surface, the plate shaped housing having an accommodating recess where the terminal is accommodated; and
an insulating cover that is attached to the housing and covering the accommodating recess, wherein
the accommodating recess includes a retaining hole,
the terminal includes a connection portion that is electrically connected to a counterpart member, and a retaining piece that is inserted into the retaining hole and locked to the retaining hole,
the retaining piece is a flat-shaped protruding piece that protrudes from one part of an outer peripheral edge of the flat-shaped terminal along a planar direction of the terminal,
the accommodating recess is a recessed portion that is recessed downward from the flat upper surface of the plate-shaped housing,
the retaining hole is a hole that is recessed from a side wall of the accommodating recess along a planar bottom surface of the accommodating recess, and
a lower surface of the insulating cover is directly contacting an upper surface of the terminal and an upper surface of the insulating cover is aligned with the flat upper plate surface of the housing.

2. The plate for the battery stack according to claim 1 , wherein
the accommodating recess has an inclined surface that is inclined such that a plate thickness of the housing decreases from a proximal end side in an insertion direction in which the retaining piece is inserted into the retaining hole toward a distal end side in the insertion direction, and
the inclined surface is provided in a vicinity of an opening of the retaining hole.

3. The plate for the battery stack according to claim 1 , wherein
the terminal includes a first portion having the connection portion at an end portion of the first portion, and a second portion that is continuous with the first portion on a side opposite to the end portion and to which the electric wire is connected, and
the terminal has an L shape in which the first portion and the second portion intersect with each other.

4. The plate for the battery stack according to claim 3 , wherein
the retaining piece is provided at the first portion.

5. The plate for the battery stack according to claim 1 ,
wherein
the insulating cover is configured to:
move between a temporarily locked state in which the insulating cover covers the accommodating recess to expose the connection portion and a fully locked state in which the insulating cover covers the entire accommodating recess; and
cover at least a part of the terminal in the temporarily locked state.

Assignees

• Yazaki Corp
• Toyota Motor Co Ltd
• Toyota Jidoshokki Kk

Inventors

• Okazaki Yutaro
• Yanagihara Shinichi
• Morioka Satoshi
• Okumura Motoyoshi
• Ueda Hiromi
• Morisaku Naoto

Classifications

• H01M50/593

  Spacers; Insulating plates · CPC title

• H01M10/613

  Cooling or keeping cold · CPC title

• H01M50/403

  Manufacturing processes of separators, membranes or diaphragms · CPC title

• H01M10/6555

  arranged between the cells · CPC title

• H01M10/647

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