Electronic device and electronic device manufacturing method

Patent metadata

Field	Value
Publication number	US-9253899-B2
Application number	US-201313974598-A
Country	US
Kind code	B2
Filing date	Aug 23, 2013
Priority date	Oct 25, 2012
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

An electronic device including: a protrusion portion that projects towards a bottom face of a groove from the opposite side face of a second hook portion, that is inserted into the groove, and that makes close contact with a sealing material; and a cut-away portion that is formed to a side wall portion positioned further to the casing inside out of a pair of side wall portions forming the groove, the cut-away portion being formed at a position corresponding to a first hook portion.

First claim

What is claimed is:

1. An electronic device, comprising:
a first case;
a second case that together with the first case forms a casing;
a groove that is formed in the first case and that extends along a peripheral part of the first case;
a viscous sealing material filled in the groove;
a first wall portion that is formed to the first case further to the casing outside than the groove and that extends along the peripheral part of the first case;
a second wall portion that is formed to the second case further to the casing inside than the groove and that extends along the first wall portion;
a plurality of first hook portions that are formed at intervals in a direction along the peripheral part of the first case and that project towards a side of the second wall portion from the first wall portion;
a second hook portion that projects towards a side of the first wall portion from the second wall portion, that fits together with the plurality of first hook portions from a side of the groove, and that makes close contact with the sealing material at an opposite side face to a fitting face with the plurality of first hook portions;
a protrusion portion that projects towards a bottom face of the groove from the opposite side face of the second hook portion, that is inserted into the groove, and that makes close contact with the sealing material; and
a plurality of cut-away portion portions that are formed to the side wall portion positioned further to the casing inside out of a pair of side wall portions forming the groove, that are formed at positions corresponding to each of the plurality of first hook portions in a direction along the peripheral part of the first case, and that penetrate in a projection direction of the plurality of first hook portions.

2. The electronic device of claim 1 , wherein:
the groove is formed in a ring shape around a peripheral edge portion of the first case;
the sealing material is filled around the entire perimeter of the groove; and
a finishing point portion of the sealing material that bulges out from the groove through the cut-away portion towards the casing inside overlaps with a starting point portion of the sealing material positioned inside the groove.

3. The electronic device of claim 1 , wherein the protrusion portion is inserted into a central portion inside the groove between the pair of side wall portions.

4. The electronic device of claim 3 , wherein the protrusion portion projects straight towards the bottom face of the groove.

5. The electronic device of claim 3 , wherein a leading end face of the protrusion portion is formed by a curved protruding face that forms a protrusion towards the bottom face side of the groove.

Assignees

• Fujitsu Ltd

Inventors

• Hongo Manabu
• Kajiwara Yoshifumi
• Takita Hiroyuki
• Kubo Hiroshi
• Watanabe Satoshi
• Yamaguchi Shingo
• Kanbayashi Satoshi
• Ite Yasuhiro

Classifications

• Y10T29/49826

  Assembling or joining · CPC title

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• G06F1/1626 Primary

  with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs] · CPC title

• H05K5/0208

  Interlock mechanisms; Means for avoiding unauthorised use or function, e.g. tamperproof · CPC title

• H05K5/10 Primary

  comprising several parts forming a closed casing · CPC title