WO2012157226A1

WO2012157226A1 - Electronic device

Info

Publication number: WO2012157226A1
Application number: PCT/JP2012/003073
Authority: WO
Inventors: 河野　一則
Original assignee: パナソニック株式会社
Priority date: 2011-05-13
Filing date: 2012-05-10
Publication date: 2012-11-22
Also published as: JP2012238822A

Abstract

A plug through-hole (32) of a jack (30) inside a housing is exposed to the outside through a through-hole (21) of a wall portion (20). A frame portion is provided on the inner surface of the wall part (20) so as to surround the jack (30) and an O-ring (34) abuts on the inner surface of the frame portion. At this point, the central axis (CL) of the O-ring (34) crosses the penetration direction of the through-hole (21), and thus the increase in thickness of the housing (11) due to the O-ring (34) can be reduced, whereby the thickness of the housing can be reduced while securing the water-tightness of the portion of the jack (30).

Description

Electronics

The present invention relates to an electronic device having a waterproof connector in a housing.

Conventionally, an electronic device having a waterproof connector in a case is known (see, for example, Patent Document 1).
In the electronic device of Patent Document 1, a plurality of concentric ribs are provided on the end face of the disk-like waterproof packing, and the ribs are pressed against the inner surface of the housing to obtain waterproofness.
Further, as shown in FIG. 8, the O-ring 101 is provided on the circumferential surface of the cylindrical jack 100, and

semicircular notches

102A and 103A are provided on the cover 102 and the case 103 that constitute the housing, respectively. A structure is also proposed in which the jack 100 is held to obtain waterproofness by attaching the O-ring 101 to the cover 102 and the case 103 so as to press the inner surfaces of the

notches

102A and 103A.

Japanese Patent Laid-Open No. 11-190468 (FIG. 1)

However, in the structure as described above, since the housing is thickened by the thickness of the O-ring 101, there is a problem that it becomes an obstacle in thinning the housing.

The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide an electronic device capable of thinning a housing while securing waterproofness of a jack portion.

The electronic device according to the present invention is substantially box-like, which is disposed inside a case, a through hole provided in a wall of the case, and the inside of the wall, and the plug insertion hole is exposed to the outside from the through hole. A jack, a frame continuous with the inner surface of the wall and surrounding the jack, and an O-ring provided on the outer surface of the jack and in contact with the inner surface of the frame; A central axis intersects with the penetration direction of the through hole.

In the electronic device of the present invention, the surface along the edge of the frame and the surface along the O-ring are inclined with respect to the mounting surface of the jack.

In the present invention, a frame surrounding the jack is provided on the inner surface of the wall of the housing, and the O-ring abuts on the inner surface of the frame. Since the central axis of the O-ring intersects the penetrating direction of the through hole, an increase in the thickness direction of the housing due to the O-ring can be reduced, and the housing can be thinned while securing waterproofness of the jack portion It is possible to provide an electronic device having such an effect.

The perspective view of the portable terminal as an electronic device of a 1st embodiment concerning the present invention Perspective view of the jack attachment Jack's perspective view Sectional view of IV-IV position in FIG. 1 Sectional view of V-V position in FIG. 4 Front view of the plug Sectional view of a jack attachment portion of a second embodiment according to the present invention An explanatory view showing the problems of the prior art

First Embodiment
Hereinafter, an electronic device according to a first embodiment of the present invention will be described using the drawings.
As shown in FIG. 1, the electronic device according to the first embodiment of the present invention can be, for example, a portable terminal 10. The portable terminal 10 has a rectangular box-shaped case 11, and a display unit 12 is provided on one surface of the case 11. Further, a sound generator 13 such as a speaker is provided on the upper side of the display 12, and a microphone 14 is provided on the lower side of the display 12.

Inside the wall portion 20 which is one side surface of the housing 11, a jack 30 for connecting to another electronic device or the like through the connection cord 40 is provided.
As shown in FIG. 2, the wall portion 20 is provided with a through hole 21 communicating the inside and the outside of the housing 11, and the inner surface 201 of the wall portion 20 is provided with a jack attachment portion 22. .
Note that the inner surface 201 of the wall portion 20 in the through hole 21 is provided with a notch 211 for avoiding interference with a protrusion 371 (see FIG. 3) of a terminal 37 of the jack 30 described later.

In the jack attachment portion 22, a frame portion 23 for positioning the jack 30 is provided integrally with the wall portion 20 from the inner surface 201 of the wall portion 20 toward the inside of the housing 11. The frame portion 23 has a pair of

side walls

231, 231 sandwiching the through hole 21 and a tip wall 232 connecting the tip of the side wall 231, and has a U-shape in plan view. The side wall 231 is inclined (inclined surface 231A) so as to be lower toward the inside of the housing 11. A fixing base 24 for fixing the jacks 30 is provided on the outer side of each side wall 231, and a screw hole 241 is provided on the upper surface of the fixing base 24.
A recess 251 is provided from the through hole 21 toward the inside of the housing 11 on the mounting surface 25 on which the jack 30 is mounted by being surrounded by the frame 23 in the jack mounting portion 22.

As shown in FIG. 3, the jack 30 has a housing 31 in the form of a whole rectangular box. The front wall 311 of the housing 31 is provided with a plug insertion hole 32 for inserting the plug 41 of the connection cord 40. The inner surface of the plug insertion hole 32 is provided with a terminal 37 for contacting and conducting each

electrode

41A, 41B, 41C, 41D (see FIG. 6) of the inserted plug 41, and the tip of the terminal 37 is It protrudes from the plug insertion hole 32 (protrusion part 371).

As shown in FIGS. 3 and 4, the upper wall 312 of the housing 31 has an inclined surface 312A such that the thickness on the front side (the plug insertion hole 32 side) is large and the thickness on the rear side is small. Mounting brackets 36 for mounting the jacks 30 to the fixing base 24 of the jack mounting portion 22 are provided on the left and right sides of the upper wall 312 so as to project outward (see FIG. 6). The mounting bracket 36 is provided with a screw hole 361.

In order to connect the jack 30 to the internal device of the portable terminal 10, a plurality of connection terminals 33 are attached to the rear rear wall 313 (see FIG. 4) on the rear side of the housing 31 so as to protrude rearward.
A recessed groove 35 is formed on the outer peripheral surface of the jack 30 so as to surround the front wall 311, the pair of

side walls

314 and 314, and the rear wall 313, and an O-ring 34 is attached to the recessed groove 35. The recessed groove 35 passes the upper side of the plug insertion hole 32 in the front wall 311, passes the lower side of the connection terminal 33 in the rear wall 313, and inclines from the front to the rear in the both

side walls

314, 314 There is.

Therefore, the penetration direction of the through hole 21 intersects with the central axis CL of the O-ring 34. That is, it is possible to provide the height position at which the O-ring 34 (concave groove 35) passes on the rear wall 313 near or above the height position of the bottom surface 321 of the plug insertion hole 32. For this reason, the thickness below the plug insertion hole 32 in the jack 30 can be reduced, and the thickness of the jack 30 can be reduced.
Here, the "central axis CL" of the O-ring 34 means an axis orthogonal to the plane passing through the center of the plane or pseudo plane including the O-ring 34, and the plane shape is not limited to a circle, and is elliptical It may be rectangular or the like.

Next, attachment of the jack 30 to the jack attachment portion 22 will be described.
As described above, in the jack 30, since the projecting portion 371 of the terminal 37 protrudes from the plug insertion hole 32, the jack 30 can not be directly lowered from the upper side to the jack attachment portion 22. For this reason, the projection 371 of the terminal 37 is moved obliquely downward from above the tip wall 232 of the jack attachment 22 so as to be inserted into the through hole 21, and the projection 371 is inserted into the notch 211 of the through hole 21. The jack 30 is attached to the inside of the frame 23.
At this time, since the height of the end wall 232 of the jack attachment portion 22 is lowered, the jack 30 can be easily fitted. In addition, since the connection terminals 33 projecting rearward from the rear wall 313 of the jack 30 are located above the tip wall 232, they do not interfere.

By inserting the jack 30 into the inside of the frame portion 23, the mounting bracket 36 of the jack 30 is positioned on the upper surface of the fixing base 24 of the jack mounting portion 22. Therefore, the jack 30 is fixed by fastening the mounting bracket 36 to the fixing base 24 with the screw 15 (see FIG. 5).

As described above, according to the portable terminal 10 of the first embodiment of the present invention described above, the plug insertion hole 32 of the substantially box-like jack 30 disposed inside the wall portion 20 of the housing 11 corresponds to that of the housing 11. The through holes 21 provided in the wall portion 20 are exposed to the outside. A frame 23 surrounding the jack 30 is provided on the inner surface of the wall 20, and the O-ring 34 abuts on the inner surface of the frame 23.
At this time, since the central axis CL of the O-ring 34 intersects with the penetrating direction of the through hole 21, the increase in the thickness direction of the housing 11 by the O-ring 34 can be reduced, and the waterproofness of the jack 30 portion can be improved. The housing 11 can be thinned while securing it.

Further, in the portable terminal 10, since the surface along the edge of the frame portion 23 and the surface along which the O-ring 34 extends are inclined with respect to the mounting surface 25 of the jack 30, the housing by providing the O-ring 34 The increase in thickness of 11 can be reduced.
In addition, since the surface along the edge of the frame portion 23 is inclined with respect to the mounting surface 25 of the jack 30, even if the projecting portion 371 of the terminal 37 protrudes from the plug insertion hole 32, the inside of the frame portion 23 is formed. The jack 30 can be easily attached to the connector, and the assemblability can be improved.

Second Embodiment
Next, an electronic device according to a second embodiment of the present invention will be described.
In addition, the same code | symbol is attached | subjected to the site | part in common with the portable terminal 10 concerning 1st Embodiment mentioned above, and suppose that the overlapping description is abbreviate | omitted.
As shown in FIG. 7, in the portable terminal 10B of the second embodiment, a recessed groove 35B and an O-ring 34B are provided horizontally at the upper end of the jack 30B, and the jack 30B is lowered straight down and inserted into the jack attachment portion 22B. Do.
In the case where the projection 371 of the terminal 37 described in the first embodiment does not disturb the insertion of the jack 30, even in this way, the same operation and effect as the portable terminal 10 of the first embodiment can be obtained. Can.

In addition, the electronic device of this invention is not limited to each embodiment mentioned above, An appropriate deformation | transformation, improvement, etc. are possible.

This application is based on Japanese Patent Application (Japanese Patent Application No. 2011-108613) filed on May 13, 2011, the contents of which are incorporated herein by reference.

As described above, in the electronic device according to the present invention, the frame surrounding the jack is provided on the inner surface of the wall of the housing, and the O ring abuts on the inner surface of the frame. Since the central axis of the O-ring intersects the penetrating direction of the through hole, an increase in the thickness direction of the housing due to the O-ring can be reduced, and the housing can be thinned while securing waterproofness of the jack portion It is useful as an electronic device etc. which have an effect and has a waterproof connector in a case.

10, 10 B Electronics 11 Housing 20 Wall 21 Through Hole 23

Frame

30, 30 B Jack 311 Front wall (outside surface)
313 back wall (outside surface)
314 Side wall (outside surface)
32 plug insertion hole 321 bottom surface (mounting surface)
34, 34B O-ring CL central axis

Claims

And
A through hole provided in a wall of the housing;
A substantially box-like jack disposed inside the wall and the plug insertion hole is exposed to the outside from the through hole;
A frame continuous with the inner surface of the wall and surrounding the jack;
An O-ring provided on the outer surface of the jack and in contact with the inner surface of the frame;
The electronic device in which the central axis of the O-ring intersects the penetration direction of the through hole.
In the electronic device according to claim 1,
The electronic device in which the surface along the edge of the frame and the surface along which the O-ring is inclining are inclined with respect to the mounting surface of the jack.