Electrical junction box

Patent metadata

Field	Value
Publication number	US-9981618-B2
Application number	US-201715690998-A
Country	US
Kind code	B2
Filing date	Aug 30, 2017
Priority date	Sep 6, 2016
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

Provided is an electrical junction box configured promptly release the electrical junction box from a state where water has intruded therein, thereby preventing the occurrence of a vehicle fire due to submersion. An internal circuit includes a high-voltage circuit bus bar and a low-voltage circuit bus bar having a lower potential than the high-voltage circuit bus bar, and a lower case includes a bottom wall and a peripheral wall protruding from a peripheral edge portion of the bottom wall toward an upper case. A high-voltage circuit region where the high-voltage circuit bus bar is disposed, a low-voltage circuit region where the low-voltage circuit bus bar is disposed, and a dividing wall divides these regions are provided inside the peripheral wall, and a height dimension of the dividing wall from the bottom wall is configured to be greater than a height dimension of the peripheral wall from the bottom wall.

First claim

What is claimed is:

1. An electrical junction box comprising:
a case; and an internal circuit housed in the case,
the case including a lower case configured to be located at a lower position and an upper case configured to be located at an upper position when mounted on a vehicle, wherein
the internal circuit includes a high-voltage circuit bus bar and a low-voltage circuit bus bar having a lower potential than the high-voltage circuit bus bar,
the lower case includes a bottom wall and a peripheral wall provided so as to protrude from a peripheral edge portion of the bottom wall toward the upper case, and a high-voltage circuit region in which the high-voltage circuit bus bar is disposed, a low-voltage circuit region in which the low-voltage circuit bus bar is disposed, and a dividing wall that divides the high-voltage circuit region and the low-voltage circuit region are provided inside the peripheral wall, and
a height dimension of the dividing wall from the bottom wall is configured to be greater than a height dimension of the peripheral wall from the bottom wall.

2. The electrical junction box according to claim 1 , wherein
the dividing wall has a corner portion where an extension direction of the dividing wall is changed, and a drain hole extending through the bottom wall of the lower case is provided in proximity to the corner portion.

3. The electrical junction box according to claim 1 , wherein
opposite end portions of the dividing wall are coupled to the peripheral wall of the lower case.

4. The electrical junction box according to claim 3 , wherein the dividing wall has a corner portion where an extension direction of the dividing wall is changed, and a drain hole extending through the bottom wall of the lower case is provided in proximity to the corner portion.

Assignees

• Sumitomo Wiring Systems

Inventors

• Kawaguchi Kiyofumi

Classifications

• H01R9/2458

  Electrical interconnections between terminal blocks · CPC title

• H02G1/14

  for joining or terminating cables · CPC title

• H05K7/06

  on insulating boards {, e.g. wiring harnesses (for printed circuits H05K1/18, H05K3/30)} · CPC title

• H02G3/16

  structurally associated with support for line-connecting terminals within the box · CPC title

• B60R16/0238 Primary

  Electrical distribution centers · CPC title