JP2005328284A - Portable telephone with duct loudspeaker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone capable of outputting a sound approximately in the same direction as a display screen even in either form before deformation or after the deformation in the portable telephone deformed as a folding type one. <P>SOLUTION: In the portable telephone formed by connecting a first box body and a second box body with a loudspeaker in a freely relative displacement, a duct is mounted on the first box body so as to be worked as a path for the sound output from the loudspeaker. In the portable telephone, a structure is formed in which the sound is output to the outside of its own machine through the duct in either form before the deformation or after the deformation or both forms. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a speaker of a mobile phone.

In recent years, mobile phones have become more entertaining as melody players and game machines, and accordingly, it is required to produce sound with better sound quality. Therefore, the installation position of the speaker and the speaker itself are devised.
The mobile phone disclosed in Patent Document 1 has been devised to improve sound quality while using a conventional speaker.
Japanese Patent Laid-Open No. 2001-258085

By the way, when playing a game or the like, it is desired to arrange a speaker on the mobile phone so that sound is emitted toward the user to enhance the sense of presence felt by the user.
Recently, with emphasis on compactness, mobile phones that can be deformed into two states, such as a foldable mobile phone and a slide-type mobile phone, have been developed. Difficult to make sound in the direction.

For example, in a folding mobile phone, if speakers are placed so that sound is emitted on both sides of the main monitor and the numeric keypad that come inside when folded, the speakers are facing the user when opened, so the sound is clear However, when folded, the speaker is covered with the housing, and the sound is muffled.
In the case of a foldable mobile phone, it may be possible to install two or more speakers facing both the inside and the outside, but this is not preferable for a mobile phone with limited cost, weight, and installation space.

  Accordingly, an object of the present invention is to provide a mobile phone that can be easily heard in any state in a mobile phone that is deformed like a foldable mobile phone.

  In order to solve the above-described problem, a mobile phone according to the present invention is a mobile phone in which a first housing and a second housing are coupled so as to be relatively movable, and the first housing includes the first housing. A duct is formed so as to pass through one housing, a speaker is provided in the second housing, and in a predetermined relative positional relationship between the two housings, one opening of the duct, An output port of the sound emitted from the speaker to the outside of the second housing is opposed to and close to the second housing.

  Here, the duct is tubular and serves as a passage for sound emitted from the speaker. Also, the term “close” here means that the sound is moved to the duct opening so that the sound is not leaked as much as possible. For example, the contact is made within a range of 1 mm, and the duct opening and the speaker are within the range. Assume that the output ports face each other.

The first housing and the second housing may overlap to block the opening of the speaker. In this case, the sound output from the speaker of the second housing may be configured as described above. Since the sound can be emitted to the outside of the machine through the duct inside the first housing, the sound can be heard clearly without the sound being muffled.
In addition, the mobile phone is a foldable mobile phone that can be opened and closed, the second housing is pivotally supported by the first housing, and the predetermined relative positional relationship is defined by the first housing. The device is folded so that one surface and one surface of the second housing face each other, and the first housing and the second housing overlap each other, and are emitted from the speaker in the positional relationship. The sound may be output to the outside of the aircraft through the duct.

As a result, in a folding mobile phone, even if the speaker output port is on the inner surface when folded so that the first housing and the second housing overlap each other, the sound clearly passes through the duct to the outside of the device itself. Can be issued.
In addition, the mobile phone is a slide-type mobile phone, and has two of the predetermined relative positional relationships, and the first positional relationship is one surface of the first housing and one surface of the second housing. Are opposite to each other, and the second positional relationship is a state in which, from the first positional relationship, the first casing is slid and shifted from the second casing, The duct has two or more openings, and the output port of the sound emitted from the speaker to the outside of the second housing is the duct in the first positional relationship and the second positional relationship. It is good also as facing mutually different opening parts.

Thereby, sound can be emitted to the outside of the own device through the duct in both the state where the first housing and the second housing are slid and shifted in the slide type mobile phone.
The second casing is also provided with a duct that serves as a passage of sound. In the predetermined relative positional relationship, one opening of the duct of the second casing is in contact with the speaker, and the other opening. The portion may be opposed to and close to one opening of the duct of the first housing.

As a result, the speaker can be arranged at an arbitrary position in one casing, and the sound can be guided from the arbitrary position to the outside of the casing by using the duct. Sound can be emitted through the duct.
Also, an opening on the side of the duct of the first housing that contacts the second housing so that the sound does not leak until the sound output from the speaker is passed through the duct of the first housing An annular elastic part may be formed in the peripheral portion of the speaker and the peripheral portion of the output port of the sound emitted from the speaker to the outside of the second housing.

Thereby, sound leakage when sound moves from the second housing to the duct of the first housing between the housings can be prevented.
The mobile phone may have a display screen in the first housing, and sound output from the speaker may be output in substantially the same direction as the display screen.
As a result, when playing a game, it is possible to skip the sound toward the user who is looking at the display screen, rather than placing a speaker behind the mobile phone, that is, in the direction opposite to the user. Therefore, the voice can be heard more clearly.

The second housing may include two speakers, and output ports for sounds emitted from the two speakers may be provided on both the left and right sides of the display screen.
As a result, the sound is broadened, and in particular, when using content that is displayed and output by integrating video and audio such as a game, the stereo feeling can be further enhanced.

Embodiments of a mobile phone with a duct speaker according to the present invention will be described below with reference to the drawings.
<Embodiment 1>
The configuration of the folding mobile phone according to Embodiment 1 will be described with reference to FIGS. FIG. 1 is a perspective view of the mobile phone 100 in an opened state, and FIG. 2 is a plan view of the mobile phone 100 in a closed state. 3 is a cross-sectional view of the mobile phone 100 taken along line AA in FIG. 2. FIG. 3A shows a state in which the mobile phone 100 is closed, and FIG. 3B shows an open state. Note that only the main mechanism portion is shown in the cross-sectional view of FIG. 3, and the internal mechanism of the antenna 170 is not shown.

The mobile phone 100 is a foldable mobile phone in which a second housing 120 is pivotally supported by a hinge portion 300 on a first housing 110. The first housing 110 and the second housing 120 are basically configured as follows. Made of resin.
The first housing 110 has a main monitor 150 on the inner surface when folded and a sub-monitor 240 on the outer surface when folded. In addition, ducts 221 and 222 that serve as passages for sound are formed in the interior so as to penetrate the housing as shown in the figure. Here, the duct is configured in a tubular shape, and has an opening only in a portion that comes into contact with outside air to the outside of the housing, and is fixed to the surrounding housing. The duct is made of resin. In the openings 111, 231, 112, and 232 at both ends of the ducts 221 and 222, thin mesh metal parts are provided, respectively. As a result, it is possible to pass sound while preventing dust from entering the duct. The duct openings 231 and 232 are disposed on both sides of the sub monitor 240. The main monitor 150 and the sub monitor 240 are composed of an LCD (Liquid Crystal Display).

  The second casing 120 includes an operation key group 160 and an antenna 170, and includes a speaker 201 on a substrate 301 inside. As shown in the figure, the second housing 120 has a shape in which the joint portion is raised so that it can be pivotally supported by the first housing 110 and the hinge 300. Ducts 211 and 212 are drilled in the raised portions in order to output the sound output from the speakers 201 and 202 to the outside of the second housing 120. Mesh-like thin metal parts are also provided at the open ends 121 and 122 to the outside of the ducts 211 and 212.

  When the mobile phone 100 is closed as shown in FIG. 3A, the sound output from the speaker 201 passes through the ducts 211 and 221 in order, and is output to the outside of the own device. The sound output from the speaker 202 passes through the ducts 212 and 222 in order, and is output to the outside of the own device. Contact portions between the duct of the first housing 110 and the duct of the second housing 120, that is, peripheral portions of the openings 111, 112, 121, 122 are respectively annular elastic parts (for example, rubber) 131, 132, 141 and 142 are stuck. Since the elastic parts 131 and 141 and 132 and 142 are in contact with each other, the gap between the first casing and the second casing can be filled, so that the sound is sent from the ducts 211 to 221 or the ducts 212 to 222. Sound leakage when moving can be prevented.

When the mobile phone 100 is opened as shown in FIG. 3B, the sound output from the speaker 201 is output to the outside of the own device only through the duct 211.
As shown in the figure, when the sound is emitted through the duct, pressure is applied to the speaker rather than sound in an empty space, and the vibration of the speaker can be suppressed to some extent. As a result, cracking of the high sound range can be prevented and the timbre can be rounded. Also, by adjusting the duct length and shape, the sound can be enhanced if the wavelength of the sound normally output from the speaker matches the wavelength of the sound output in the opposite direction and reflected inside the housing. Can be heard more clearly. In order to adjust the length and shape of the duct, it is preferable to create a plurality of devices corresponding to the actual machine with different lengths and shapes of the duct and adjust the sound by actually making a sound.
<Embodiment 2>
In Embodiment 1, the case of a foldable mobile phone has been described. In Embodiment 2, the case of a slide-type mobile phone 400 will be described with reference to FIGS. 4 is a perspective view of the mobile phone 400, and FIG. 5 is a plan view in a state where the mobile phone 400 is slid so that the operation keys can be seen. 6 is a cross-sectional view of the mobile phone 400 taken along the line BB in FIG. 5. FIG. 6 (a) shows a state in which the mobile phone 100 is closed and the first housing 410 and the second housing 420 are just overlapped. A certain first form, FIG. 6 (b) shows a second form in which the first housing and the second housing are displaced by sliding. The state of FIG. 6B is the same as FIG. In the cross-sectional view of FIG. 6, only the main mechanism portion is shown, and the mechanism inside the antenna 450 is not shown.

  The first housing 410 includes a monitor 440 that is an LCD, and duct openings 411 and 412 are provided on the left and right sides of the monitor 440. The openings 411 and 412 are provided with thin metal parts in mesh form, respectively. ing. In addition, a camera 430 and the like are provided. Ducts 511 and 521 are provided in the interior as shown in the figure, and serve as paths for sounds output from the speakers 501 and 502 of the second housing 420, respectively.

The second housing 420 is provided with slide grooves 421 and 422 in addition to the operation key group 423, and can slide by engaging with claws in the first housing 410 (not shown). Speakers 501 and 502 are provided on a substrate 600 inside the second housing 420.
In the first embodiment, the speaker 501 and one opening 611 of the duct 511 face each other as shown in FIG. 6A, and in the second embodiment, the speaker 501 and the duct appear as shown in FIG. 6B. One opening 621 of 511 faces. Although not shown, the speaker 502 has the same structure. In the case of FIG. 6A, the sound output from the speaker 501 passes through the opening 611, passes through the duct 511, and is output from the opening 411 to the outside of the apparatus. In the case of FIG. 6B, the sound output from the speaker 501 passes through the opening 621, passes through the duct 511, and is mainly output from the opening 411 to the outside of the apparatus. The openings 611 and 621 are also provided with mesh-like thin metal parts.
<Supplement>
In the above embodiment, the shape of the duct is as shown in the figure, but the shape is not limited to this. For example, the duct may be formed in a straight column shape, or may be penetrated toward another surface that is not parallel to the surface facing the first housing and the second housing, or sound output. The duct may be trifurcated so that there are two ends.

Moreover, in the said embodiment, although the mesh-shaped metal component was provided in the opening part of the duct, the merit of preventing invasion of dust may not be lost. In addition, although it is a mesh-like metal part, it can be anything as long as it can pass sound while preventing intrusion of dust.For example, it is a mesh-like fiber or a structure in which fine holes are made in the resin constituting the housing There may be.
In the second embodiment, an elastic part is not provided near the opening of the duct. However, it may be provided if it does not hinder sliding.

  The mobile phone according to the present invention can be used as a mobile phone that can output sound in the same direction as the screen in a mobile phone that is deformed like a foldable mobile phone.

1 is a perspective view of a folding mobile phone 100 according to Embodiment 1. FIG. 1 is a plan view of a folding mobile phone 100 according to Embodiment 1. FIG. 1 is a cross-sectional view of a folding mobile phone 100 according to Embodiment 1. FIG. 6 is a perspective view of a slide-type mobile phone 400 according to Embodiment 2. FIG. 6 is a plan view of a slide-type mobile phone 400 according to Embodiment 2. FIG. 6 is a cross-sectional view of a slide-type mobile phone 400 according to Embodiment 2. FIG.

Explanation of symbols

100 Folding type mobile phone 110, 410 First casing 111, 112, 121, 122, 411, 412, 611, 621 Duct opening (mesh metal parts)
120, 420 Second casing 131, 132, 141, 142 Ring elastic component 150 Main monitor 160 Operation key 170, 450 Antenna 201, 202, 501, 502 Speaker 211, 212, 511, 521 Duct 240 Sub monitor 300 Hinge 301, 600 Substrate 400 Slide type mobile phone 421, 422 Slide groove 430 Camera 440 Monitor

Claims (7)

A mobile phone in which a first housing and a second housing are coupled so as to be relatively movable,
In the first casing, a duct is formed so as to penetrate the first casing, a speaker is provided in the second casing, and in a predetermined relative positional relationship between the two casings, A cellular phone characterized in that an opening of one of the ducts and an output port of sound emitted from the speaker to the outside of the second housing face each other. The mobile phone is a foldable mobile phone that can be opened and closed, and the second housing is pivotally supported by the first housing,
The predetermined relative positional relationship is such that the own machine is folded so that one surface of the first housing and one surface of the second housing face each other, and the first housing and the second housing are Is an overlapping state,
The mobile phone according to claim 1, wherein, in the positional relationship, a sound emitted from the speaker is output to the outside of the device through the duct. The mobile phone is a slide type mobile phone,
Two of the predetermined relative positional relationship, the first positional relationship is a state where one surface of the first housing and one surface of the second housing face each other, the two housings just overlap, The second positional relationship is a state in which the first housing is slid and shifted from the second housing from the first positional relationship,
The duct has two or more openings,
An output port of the sound emitted from the speaker to the outside of the second casing is opposed to different openings of the duct in the first positional relationship and the second positional relationship. The mobile phone according to claim 1. The second casing is also provided with a duct for sound passage,
In the predetermined relative positional relationship, one opening of the duct of the second casing is in contact with the speaker, and the other opening is opposed to and close to one opening of the duct of the first casing. The mobile phone according to any one of claims 1 to 3, wherein Around the opening on the side contacting the second housing of the duct of the first housing so that the sound output from the speaker does not leak until the sound passes through the duct of the first housing The cellular phone according to any one of claims 1 to 4, wherein an annular elastic part is formed between the portion and a peripheral portion of an output port of the sound emitted from the speaker to the outside of the second housing. The mobile phone has a display screen on the first housing,
The mobile phone according to any one of claims 1 to 5, wherein the sound output from the speaker is output in substantially the same direction as the display screen. The speaker according to claim 6, wherein the second housing includes two speakers, and output ports for sounds emitted from the two speakers are provided on both left and right sides of the display screen. Mobile phone.

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