Electric connection box

Patent metadata

Field	Value
Publication number	US-11322922-B2
Application number	US-202017096919-A
Country	US
Kind code	B2
Filing date	Nov 12, 2020
Priority date	Nov 13, 2019
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

An electric connection box includes a housing having an opening formed by side walls, a lock protruding plate, a lid to be attached to the housing, a hook, a lock portion, a protective wall, lock pieces and slits. The protective wall is configured to, when the lid is attached to the housing, cover a cable connection portion provided on the second side wall. The lock pieces extend in parallel to the protective wall and extend from the protective wall toward a first direction. The pair of slits respectively includes a receiving opening to, when the lid is attached to the housing, accommodate respective one of the pair of lock pieces, the pair of slits being to receive the lock pieces when engagement at the lock portion is carried out. The receiving opening opens, when the lid is attached to the housing, toward a second direction.

First claim

What is claimed is:

1. An electric connection box comprising:
a housing having an opening formed by an upper end of each of a plurality of side walls;
a lock protruding plate protruding on an outer surface of a first side wall of the plurality of side walls, the first side wall being along a side of the opening;
a lid configured to be attached to the housing while covering the opening;
a hook protruding downward from the lid;
a lock portion provided on each of the lid and the housing;
a protective wall protruding downward from the lid;
a pair of lock pieces formed on side edges on both sides of the protective wall, the side edges being along a direction in which the protective wall extends; and
a pair of slits provided on a second side wall of the plurality of side walls,
wherein the hook is configured to rotate the lid such that the lid is attached to the housing with the hook being engaged with the locking protruding plate,
wherein the lock portion is configured to fix the lid to the plurality of side walls,
wherein the protective wall is configured to, when the lid is attached to the housing, cover a cable connection portion provided on the second side wall,
wherein the pair of lock pieces extend in parallel with the protective wall and extend from the protective wall toward a first direction,
wherein each of the pair of slits respectively includes a receiving opening configured to, when the lid is attached to the housing, accommodate respective one of the pair of lock pieces, the pair of slits being configured to receive the respective one of the pair of lock pieces when engagement at the lock portion is carried out, and
wherein the receiving opening opens, when the lid is attached to the housing, toward a second direction.

2. The electric connection box according to claim 1 , further comprising:
a protective wall guide projection provided on the receiving opening,
wherein the protective wall guide projection comprises:
a first tapered portion provided on an end surface of the protective wall guide projection in the second direction, the first tapered portion being formed such that a width of the pair of slits gradually increases toward the second direction;
a second tapered portion provided on an upper surface of the protective wall guide projection and inclined downward toward an inner space within each of the pair of slits; and
a third tapered portion formed by chamfering a corner portion defined by the first tapered portion, the second tapered portion, and an outer surface of the protective wall guide projection.

3. The electric connection box according to claim 1 ,
wherein a tubular portion is provided on at least one of the pair of lock pieces, and
wherein the tubular portion extends along the one lock piece and shares a portion of the one lock piece as a tubular side wall with the one lock piece.

4. The electric connection box according to claim 1 ,
wherein the first side wall and the second side wall intersect with each other.

5. The electric connection box according to claim 4 ,
wherein the first side wall and the second side wall are orthogonal to each other.

6. The electric connection box according to claim 1 ,
wherein the first direction and the second direction are opposite to each other.

Assignees

• Yazaki Corp

Inventors

• Sugiyama Takashi
• Suzuki Kuninori
• Watanabe Norio
• Sashida Yuji
• Yagi Toshihisa

Classifications

• H01H85/20 Primary

  Bases for supporting the fuse; Separate parts thereof · CPC title

• H02G3/14 Primary

  Fastening of cover or lid to box · CPC title

• H01H85/2045

  Mounting means or insulating parts of the base, e.g. covers, casings · CPC title

• B60R16/0238 Primary

  Electrical distribution centers · CPC title

• H02G3/16

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