Waterproff structure of electronic parts-containing box

• US 20030102143A1
• Filed: 11/22/2002
• Published: 06/05/2003
• Est. Priority Date: 11/30/2001
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Kawai, Ryuji, Sato, Hidetoshi
• Granted Patent: US 6,768,054 B2
• Time in Patent Office: Days
• US Class Current: 174/65G
• CPC Class Codes: H02G 15/013 Sealing means for cable inlets inlets for cables filled with, or surrounded by, gas or oil H02G15/32
• CPC Class Codes: H02G 15/10 protected by boxes, e.g. by distribution, connection or junction boxes
• CPC Class Codes: H02G 3/088 Dustproof, splashproof, drip-proof, waterproof, or flameproof casings or inlets

Abstract

A waterproof structure of an electric parts-containing box includes a containing box body and a front cover which is mounted on the containing box body so as to cover a opening portion thereof. Either the containing box body or the front cover has a through hole. A water intrusion suppressing portion is formed on a face of either the containing box body or the front cover so as to suppress an intrusion of water which flows on the face into the through hole.

Claims

1. A waterproof structure of an electric parts-containing box, comprising:

a containing box body; and

a front cover, mounted on the containing box body so as to cover a opening portion thereof;

wherein either the containing box body or the front cover has a through hole; and

wherein a water intrusion suppressing portion is formed on a face of either the containing box body or the front cover so as to suppress an intrusion of water which flows on the face into the through hole.

2. The waterproof structure as set forth in claim 1, wherein the water intrusion suppressing portion is a guide wall which is formed on the face of either the containing box body or the front cover, and is disposed near to the through hole, so as to guide the water in a direction which is different from a direction in which the water flows toward the through hole.

3. The waterproof structure as set forth in claim 2, wherein the guide wall is a peripheral wall which surrounds at least a part of a circumference of the through hole.

4. The waterproof structure as set forth in claim 2, wherein the guide wall is a peripheral wall in which a lower part of the peripheral wall is open in a direction of gravity when the face of either the containing box body or the front cover is inclined.

5. The waterproof structure as set forth in claim 1, further comprising a fastening member, which threads through the through hole to fasten the front cover and the containing box body;

wherein the water intrusion suppressing portion is a rib which formed around at least a part of a circumference of the through hole; and

wherein the rib is crushed by an abutment face of the fastening member so as to seal a gap between the face and the abutment face of the fastening member when the containing box body and the front cover are fastened together by the fastening member.

6. The waterproof structure as set forth in claim 5, wherein the fastening member includes a bolt and a nut, and

wherein either the bolt or the nut is secured to either the containing box body or the front cover which does not have the through hole.