JP2007013699A - Portable electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize miniaturization by compact component arrangement in a portable electronic apparatus equipped with a pair of speakers. <P>SOLUTION: A first cabinet 1 of a folding-type portable telephone has in its inside a main display, camera assembly 6, and a pair of the speakers 8, 8 which demonstrate stereo functionality. Directly below the main display, the portable electronic apparatus is provided with camera assembly 6, and a holder 7 which holds the camera assembly 6 and has shielding functionality to the camera assembly 6. The holder 7 is provided with a shield 71 which covers the periphery of the camera assembly 6, and a pair of protrusions 72, 72 which are projected from the shield 71 toward the right and the left directions. The holder 7 is fixed to the inside of the first cabinet 1, and the pair of speakers 8, 8 are clamped between a pair of the protrusions 72, 72 of the holder 7 and inside of the first cabinet 1, respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable electronic device such as a mobile phone, and more particularly to a portable electronic device including a pair of speakers.

In recent years, mobile phones have become smaller and thinner and have become more multifunctional, and those having a television broadcast receiving function and a video data receiving function for downloading video data through the Internet have been developed.
In such a mobile phone, there is known a mobile phone that includes a pair of speakers and can reproduce television broadcasts and video data together with stereo sound (see Patent Document 1 and Patent Document 2).
JP 2003-152837 A [H04M 1/02] JP 2003-158565 A [H04M 1/03]

By the way, in a mobile phone incorporating a pair of speakers, when the pair of speakers are arranged close to each other, there are almost a region where sound waves emitted from one speaker spread and a region where sound waves emitted from the other speaker spread. Since they overlap, a sufficient stereo effect cannot be obtained, so it is necessary to arrange the two speakers as far apart as possible.
Further, in order to realize realistic sound reproduction, two speakers are arranged at a position adjacent to a liquid crystal display for displaying images, and the sound emitted from the two speakers is arranged on the liquid crystal display. It is necessary to configure so that sound is emitted from the surface of the housing.

However, when the pair of speakers and the liquid crystal display are arranged in the same housing, the pair of speakers and the liquid crystal display not only occupy a large space but also a space for fixing the pair of speakers in the housing. Since this is necessary, there has been a problem of increasing the size of the housing.
SUMMARY OF THE INVENTION An object of the present invention is to reduce the size of a portable electronic device provided with a pair of speakers by compact component arrangement.

A portable electronic device according to the present invention includes a display device for displaying an image and a pair of speakers (8) and (8) inside a housing (1), and inside the housing (1), An electronic component is provided at a position close to the display device, and the pair of speakers (8) and (8) are installed on both sides with the electronic component in between, and the electronic component is attached by a holder (7). It is held and fixed to the inner surface of the casing (1). The holder (7) includes a shield part (71) covering the periphery of the electronic component, and a pair of projecting pieces (72) (72) projecting from both sides of the shield part (71). The pair of speakers (8) and (8) are sandwiched between the pair of projecting pieces (72) and (72) of the holder (7) and the inner surface of the casing (1).
Specifically, the holder (7) has a shielding function for the electronic component, and the electronic component is a camera assembly (6).

  Conventionally, in a portable electronic device having a pair of speakers (8) and (8), the two speakers are arranged as far as possible to enhance the stereo effect, so both speakers (8) ( 8) A dead space will be generated. In view of this, the portable electronic device of the present invention can effectively use the space in the housing (1) by installing the camera assembly (6) in a dead space formed between the speakers (8) and (8). Is intended.

  By the way, an electronic component that generates high-frequency noise such as a camera assembly (6) needs to be covered with a shielding component to block diffusion of noise to the periphery. Therefore, in the portable electronic device of the present invention, a pair of projecting pieces (72) and (72) are projected from a holder (7) that shields the camera assembly (6), and the pair of projecting pieces (72) and (72). And a pair of speakers (8) and (8) are sandwiched between the casing (1) and the inner surface of the casing (1), thereby further effectively utilizing the space in the casing (1).

Conventionally, an extra space is required around each speaker (8) to fix the speaker (8) to the inner surface of the housing (1). According to the portable electronic device of the present invention, however, The extra space can be reduced, and when the speaker (8) having the same diameter as the conventional one is used, the housing (1) can be reduced in size.
Further, by using the reduced space, it is possible to employ a speaker (8) having a larger diameter than the conventional one without causing an increase in the size of the casing (1), thereby improving the sound pressure.
Further, since no space for fixing is required around each speaker (8), both speakers (8) and (8) are arranged as close as possible to the inner wall surface of the housing (1). The space between the speakers (8) and (8) can be increased as compared with the prior art without causing an increase in the size of the casing (1). As a result, a sufficient stereo effect is obtained and the sound quality is improved.

  In a specific configuration, the pair of speakers (8) and (8) are arranged in an inclined posture having an opening angle between their sound emitting directions, and the pair of projecting pieces (72) and (72) of the holder (7). And the inner surface of the casing (1).

  According to this specific configuration, the overlap between the region where the sound wave emitted from one speaker (8) spreads and the region where the sound wave emitted from the other speaker (8) spreads is small. Thereby, the interference of the sound wave emitted from both speakers (8) and (8) becomes slight, a sufficient stereo effect is obtained, and the sound quality is improved.

  In a specific configuration, the housing (1) is configured by fastening the front cabinet (2) and the rear cabinet (3) to each other by one or a plurality of screws (29) (29), and the holder ( 7), one or a plurality of hooks 74, 74 are projected toward the inner surface of the front cabinet 2 and the one or more hooks are formed on the inner surface of the front cabinet 2. One or a plurality of engagement receiving portions (24) and (24) with which the portions (74) and (74) are engaged are provided, and the one or a plurality of screws (29) and (29) are provided in the holder (7). The holder (7) is fastened to the front cabinet (2) by the one or a plurality of screws (29) (29).

  According to the specific configuration, the holder (7) is attached to the inner surface of the front cabinet (2) by the locking structure by the hook part (74) and the engagement receiving part (24) and the fastening structure by the screw (29). It can be firmly fixed.

  According to the portable electronic device according to the present invention, the space in the housing (1) can be effectively used, and downsizing is realized through a compact component arrangement.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention applied to a foldable mobile phone will be specifically described below with reference to the drawings.
As shown in FIGS. 1, 2 and 4, the foldable mobile phone according to the present invention connects the first housing (1) and the second housing (4) so that they can be opened and closed with a hinge mechanism (5). Configured.

The first housing (1) is configured by joining a front cabinet (2) and a back cabinet (3) to each other, and a main display (11) is provided on the surface of the front cabinet (2). A sound emitting part (21) comprising a plurality of sound emitting holes is formed below the main display (11), and a pair of speakers (8) (described later) is formed inside the sound emitting part (21). 8) is deployed. In addition, a sub-display (12) and a camera assembly (6) are arranged inside the first housing (1) toward the rear cabinet (3).
On the other hand, a plurality of operation keys (41) to (41) are arranged on the surface of the second casing (4).

  As shown in FIG. 3, an LCD substrate (13) for holding a main display (not shown) and a sub-display (12) is attached to the inner surface of the front cabinet (2) on the front and rear surfaces. A camera assembly (6) is disposed between the LCD substrate (13) and the base end of the front cabinet (2) to which one end of the hinge mechanism (5) is to be attached. A pair of speakers (8) and (8) are respectively provided on both sides of the sandwich. Each speaker (8) has a diameter of 15 mm, and the first housing (1) has a width of 49 mm.

  The front cabinet (2), the hinge mechanism (5), the holder (7), and the rear cabinet (3) are fastened together by screws (29) and (29), and each screw (29) is fixed to the front cabinet (2). Through a screw hole (25) (see FIG. 6) inserted from the front side of the front cabinet (2), a through hole (51) opened at the base end of the hinge mechanism (5), and a holder (7 described later) ) Through a hole (75) of the rear cabinet (3) and screwed to a screwing portion (31) (see FIG. 8) projecting from the rear surface.

As shown in FIG. 5, the camera assembly (6) is held in a holder (7). As shown in FIG. 9, the holder (7) applies a copper / nickel plating to the surface of an integrally molded product of ABS resin. A box-shaped shield part (71) covering the periphery of the camera assembly (6) in order to block the diffusion of high-frequency noise generated by the camera assembly (6) to the surroundings, and the shield part (71) It includes a pair of flat plate-like projecting pieces (72) and (72) projecting in the left-right direction. A circular opening (73) is formed on the upper surface of the shield part (71) at a position facing the light receiving part of the camera assembly (6).
The shield part (71) has a flat base part (76) protruding toward the base end of the front cabinet (2). Small pieces (77) each having a circular hole (75) project from each other.

As shown in FIG. 5, each of the pair of speakers (8) and (8) has a pair of protruding pieces (72) and (72) of the holder (7) and a speaker installation surface (on the inner surface of the front cabinet (2)). 22) It is sandwiched between (22).
Each speaker installation surface (22) is inclined at an angle of 5 degrees with respect to the surface of the front cabinet (2) from the center of the inner surface of the front cabinet (2) toward the inside of the first housing (1). Both speakers (8) and (8) are in a tilted posture having an opening angle between the sound output directions of both speakers (8) and (8), and a pair of projecting pieces (72) ( 72) and the speaker installation surface (22) (22).

  As a result, the sound wave emitted from the right speaker (8) spreads toward the user's right region, and the sound wave emitted from the left speaker (8) spreads toward the user's left region. The overlap between the region where the sound wave emitted from (8) spreads and the region where the sound wave emitted from the left speaker (8) spreads becomes small. As a result, the interference of sound waves emitted from both speakers (8) and (8) becomes slight, a sufficient stereo effect is obtained, and the sound quality is improved.

As shown in FIG. 3, the shield (71) of the holder (7) has a pair of hooks (74, 74) facing the inner surface of the front cabinet (2) at the end on the LCD substrate (13) side. 6 and 7, as shown in FIGS. 6 and 7, a pair of engagement receiving portions (24) with which the pair of hook portions (74) and (74) engage with the inner surface of the front cabinet (2), respectively. ) (24) is formed adjacent to the camera installation surface (23).
Further, the screws (29) and (29) shown in FIG. 3 respectively penetrate the holes (75) and (75) formed in the pair of small pieces (77) and (77) of the holder (7) shown in FIG. The holder (7) has the base (76) sandwiched between the inner surface of the front cabinet (2) and the base end of the hinge mechanism (5) shown in FIG. 3 by the screws (29) and (29). It is concluded in a state.

Accordingly, the holder (7) has two locations on the LCD substrate (13) side where the both hook portions (74) and (74) project as shown in FIG. 3 and the front surface where the holes (75) and (75) are opened. It is firmly fixed to the inner surface of the front cabinet (2) at a total of four locations on the base end side of the cabinet (2).
In this state, as shown in FIG. 5, the pair of projecting pieces (72) and (72) of the holder (7) are in contact with the back surfaces of both speakers (8) and (8), and both projecting pieces (72) and (72) Due to the elastic force, both speakers (8) and (8) are pressed toward the speaker installation surfaces (22) and (22). Thereby, each speaker (8) is clamped between each projecting piece (72) and the speaker installation surface (22), and the sound emitting surface (81) of each speaker (8) is placed on the speaker installation surface (22). Adhering to each other prevents sound leakage.

  In the foldable mobile phone of the present invention, since the camera assembly (6) is compactly installed between the pair of speakers (8) and (8), the space in the first casing (1) is effectively utilized. As a result, two large-diameter speakers (8) and (8) can be arranged directly below the main display (11) without increasing the size of the first housing (1). It has become. As a result, realistic sound reproduction is realized.

  Further, since the camera assembly (6) generates high-frequency noise, the holder (7) having a shield part (71) for shielding the camera assembly (6) is an essential component in a mobile phone incorporating a camera. Therefore, in the foldable mobile phone of the present invention, a pair of projecting pieces (72) (72) that sandwich the pair of speakers (8) and (8) between the speaker installation surface (22) of the front cabinet (2). 72) is provided in the holder (7), which is an essential component, to reduce the space for fixing each speaker (8) to the inner surface of the first housing (1).

As a result, the loudspeaker (8) having a larger diameter than the conventional one can be adopted without causing an increase in the size of the first housing (1), so that the sound pressure is improved.
Further, since no space for fixing is required around each speaker (8), both speakers (8) and (8) are arranged as close as possible to the inner wall surface of the first housing (1). I can do it. Thereby, the space | interval of both speakers (8) and (8) can be expanded rather than the past, without causing the enlargement of a 1st housing | casing (1), As a result, it can emit from both speakers (8) and (8). The interference of the generated sound wave becomes slight, a sufficient stereo effect is obtained, and the sound quality is improved.

  In addition, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim. For example, in the present embodiment, the holder (7) that holds the camera assembly (6) has a shield function in order to shield high frequency noise generated by the camera assembly (6). ) When an electronic component that does not generate high-frequency noise is placed between (8), it is possible to adopt a holder (7) that does not have a shielding function as the holder (7) that holds the electronic component. is there.

1 is a perspective view of a foldable mobile phone according to the present invention. FIG. It is the perspective view which looked at the foldable mobile phone of FIG. 1 from the back side. It is a disassembled perspective view of a 1st housing | casing. It is a front view of a foldable mobile phone. It is sectional drawing which follows the AA line of FIG. It is a top view of the state which attached the LCD substrate and the speaker to the front cabinet. It is an enlarged view of the B section of FIG. It is a top view of a back cabinet. It is a perspective view of a holder.

Explanation of symbols

(1) First housing
(11) Main display
(2) Front cabinet
(21) Sound emission part
(22) Speaker installation surface
(23) Camera installation surface
(24) Engagement receiver
(25) Screw hole
(29) Screw
(3) Rear cabinet
(31) Screw fixing part
(4) Second housing
(41) Operation keys
(42) Through hole
(5) Hinge mechanism
(51) Through hole
(6) Camera assembly
(7) Holder
(71) Shield part
(72) Projection
(74) Hook
(75) Hole
(76) Base part
(8) Speaker

Claims (5)

In a portable electronic device having a display device for displaying an image and a pair of speakers (8) and (8) inside the housing (1),
Inside the casing (1), electronic components are arranged at positions close to the display device, and the pair of speakers (8), (8) are installed on both sides with the electronic components interposed therebetween. The electronic component is held by a holder (7) and fixed to the inner surface of the housing (1). The holder (7) includes a shield portion (71) covering the periphery of the electronic component, A pair of projecting pieces (72) and (72) projecting on both sides of the shield part (71) are provided, and the pair of speakers (8) and (8) are provided with a pair of projecting pieces ( 72) A portable electronic device which is sandwiched between (72) and the inner surface of the casing (1).   The portable electronic device according to claim 1, wherein the holder (7) has a shielding function for the electronic component.   The portable electronic device according to claim 1 or 2, wherein the electronic component is a camera assembly (6).   The pair of speakers (8) and (8) are arranged in an inclined posture having an opening angle between their sound emitting directions, and the pair of projecting pieces (72) and (72) of the holder (7) and the housing ( The portable electronic device according to any one of claims 1 to 3, wherein the portable electronic device is sandwiched between the inner surface of 1).   The housing (1) is configured by fastening a front cabinet (2) and a rear cabinet (3) to each other by one or a plurality of screws (29) (29), and the holder (7) includes a front cabinet. One or a plurality of hook portions (74), (74) project from the inner surface of (2), and the one or more hook portions (74), (74) are formed on the inner surface of the front cabinet (2). One or a plurality of engagement receiving portions (24), (24) to be engaged with each other are provided, and the one or a plurality of screws (29), (29) pass through a part of the holder (7), The portable electronic device according to claim 1, wherein the holder (7) is fastened to the front cabinet (2) by one or a plurality of screws (29) (29).

Images