Connection module

Patent metadata

Field	Value
Publication number	US-10707589-B2
Application number	US-201916535339-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Aug 22, 2018
Publication date	Jul 7, 2020
Grant date	Jul 7, 2020

Abstract

A connection module includes a first bus bar, a second bus bar and a connection unit. The connection unit includes a housing case having an insulation property and having a housing space formed therein, and a fastening member disposed inside the housing space. The connection unit is provided with a tool insertion hole through which a tool to be attached to the fastening member is insertable. The fastening member is configured to electrically connect the first bus bar and the second bus bar that are disposed inside the housing space. An insulation member is disposed in a portion of the fastening member that is visible through the tool insertion hole when the fastening member is seen through the tool insertion hole.

First claim

What is claimed is:

1. A connection module comprising:
a first bus bar;
a second bus bar; and
a connection unit configured to electrically connect the first bus bar and the second bus bar,
the connection unit including
a housing case having an insulation property and having a housing space formed therein, and
a fastening member disposed inside the housing space,

the connection unit being provided with a tool insertion hole through which an outside of the housing case and the housing space are in communication with each other, and through which a tool to be attached to the fastening member is insertable,
the fastening member being configured to electrically connect the first bus bar and the second bus bar that are disposed inside the housing space,
an insulation member being disposed in a portion of the fastening member that is visible through the tool insertion hole when the fastening member is seen through the tool insertion hole.

2. The connection module according to claim 1 , wherein the tool is in contact with the insulation member when the tool is attached to the fastening member.

3. The connection module according to claim 1 , wherein
the fastening member includes a nut and a bolt that is adapted to the nut,
the bolt includes a head portion and a shank portion that is connected to the head portion,
the insulation member is provided in the head portion, and
the tool is in contact with the insulation member provided in the head portion when the tool is attached to the bolt.

4. The connection module according to claim 3 , further comprising an elastic member disposed inside the housing space, wherein
the nut is provided with a through hole,
the first bus bar includes a first seat portion provided with a first insertion hole through which the shank portion is inserted, the first seat portion being disposed inside the housing space,
the second bus bar includes a second seat portion provided with a second insertion hole through which the shank portion is inserted, the second seat portion being disposed inside the housing space,
the first seat portion is disposed in the nut so as to allow communication between the first insertion hole and the through hole,
the second seat portion is disposed in the first seat portion so as to allow communication between the second insertion hole and the first insertion hole,
the head portion is disposed in the second seat portion, and
the elastic member is configured to urge the second seat portion toward the tool insertion hole.

Assignees

• Toyota Motor Co Ltd

Inventors

• Yamanaka Atsushi

Classifications

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/522

  Inorganic material · CPC title

• H01M50/507

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

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/209 Primary

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