JP2009038430A - Mobile device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal the speaker of which has satisfactory acoustic performance while securing the degree of freedom of designability of the portable terminal. <P>SOLUTION: The portable terminal 1 includes a first housing 2, a second housing 3 connected so as to overlap the first housing 2, a speaker 11 provided in the first housing 2, and a sound emitting hole 21 provided in the first housing 2 on a face of a side to be overlapped on the second housing 3, wherein while the first housing 2 and the second housing 3 are overlapped, an emitting part 12 is formed at ends of opposite faces of the both by increasing a spacing between the first housing 2 and the second housing 3, and a reflection face 31 which inclines with respect to the face with the sound emitting hole 21 provided thereon and faces the emitting part 12 is formed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable terminal, and more particularly to a portable terminal that can make a sound emitting hole of a speaker inconspicuous in appearance and improve acoustic performance on the display unit side.

Currently, portable terminals such as mobile phones and PDAs include a plurality of casings and a mechanism for sliding the casings relative to each other. As the slide mechanism, for example, a guide groove or the like is formed in one of the housings that slide with each other, and the other housing is moved along the guide groove. As a conventional portable terminal having a slide mechanism, for example, there are those shown in the following patent documents.
In addition, the portable terminal is provided with a sound emitting hole in the housing for resonating sound or the like accompanying information displayed on the display unit from the speaker to the outside.

JP 2006-333079 A JP 2005-003794 A JP 2007-20180 A

By the way, it is possible to secure the sound performance by providing the sound emission hole of the speaker in a place exposed on the outer surface of the housing, but on the other hand, for the purpose of improving the design, There was a request to hide.
However, when the speaker sound emission hole is hidden inside the housing, the user who is viewing the display unit due to the sound emission hole being blocked by the surface of another housing, etc. There is room for improvement in that the sound from the speaker becomes difficult to be transmitted to the side and the acoustic performance deteriorates.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mobile terminal that ensures a high degree of design freedom and that has a good acoustic performance of a speaker.

The above object of the present invention is achieved by the following configurations.
(1) a first housing;
A second housing coupled to the first housing in an overlapping manner;
A speaker provided in the first housing;
A sound emitting hole provided on a surface of the first housing on the side overlapped with the second housing;
In a state where the first casing and the second casing are overlapped, a radiation portion provided between the first casing and the second casing;
A portable terminal provided with a reflective surface that is inclined with respect to the surface on which the sound emitting hole is provided and faces the radiation portion.
(2) a first housing;
A second housing coupled to the first housing in an overlapping manner;
A speaker provided in the first housing;
A sound emitting hole provided on a surface of the first housing that is overlapped with the second housing;
In the state where the first housing and the second housing are overlapped, the end portions of the opposing surfaces of the first housing and the second housing are disposed at the end portions of the sound emitting holes. The distance between the edge on the near side and the surface of the second casing facing the first casing is such that the edge on the opposite side of the end of the sound emitting hole and the first casing are opposed to each other. A mobile terminal comprising a radiation portion provided with a reflection surface longer than a distance from a surface of the second housing.
(3) The first casing has a display unit for displaying information, and the display unit is formed on a substantially rectangular surface surrounded by a pair of short sides and a pair of long sides. The mobile terminal according to (2).
(4) The first casing is movably connected to the second casing, and the second casing is moved in the longitudinal direction of the surface on which the display unit is formed. The portable terminal according to (3), wherein the first operation unit is provided on the surface exposed by the body.
(5) A third housing movably connected to the second housing is provided, and the third housing is moved in the lateral direction of the surface on which the display unit is formed, The mobile terminal according to (3), wherein the second operation unit is provided on the exposed surface of the three housings.
(6) The mobile terminal according to (5), wherein the first casing and the second casing can be slid simultaneously with respect to the third casing.
(7) The mobile terminal according to any one of (3) to (6), wherein at least one speaker is provided in the vicinity of the short side of the first housing.
(8) The second casing has a display unit for displaying information, and the display unit is a rectangular parallelepiped formed on a substantially rectangular surface surrounded by a pair of short sides and a pair of long sides. The portable terminal according to (1) or (2), wherein the reflection surface is a surface obtained by chamfering at least one corner of the short side.

  The portable terminal of the present invention has a first casing and a second casing, and the first casing is formed with a sound emitting hole for allowing the sound of a speaker to sound outside the portable terminal. In a state where the first casing and the second casing are overlapped, a sound emitting hole is provided on the surface of the first casing that is overlapped with the second casing. In addition, a radiating portion is formed between the first housing and the second housing, and a reflection surface that reflects sound propagating from the sound emission hole faces the radiating portion. Then, when the portable terminal is used in an overlapped state, the sound propagates from the sound emitting hole toward the reflecting surface, and is reflected from the reflecting surface to propagate from the radiating portion to the outside of the portable terminal. For this reason, if the display part which displays information is formed in the surface on the opposite side to the side overlapped with the 2nd case of the 1st case, the 1st case and the 2nd case will be overlapped. When used, it is possible to hide the sound emitting hole without exposing it in appearance, and it is possible to avoid the sound from propagating from the sound emitting hole being blocked by the second casing.

  ADVANTAGE OF THE INVENTION According to this invention, while ensuring the freedom degree of design property, the portable terminal with the favorable acoustic performance of a speaker can be provided.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an overall perspective view showing an example of usage of a mobile terminal according to the present invention. FIG. 2 is an overall perspective view showing a state where the mobile terminal shown in FIG. 1 is slid. FIG. 3 is an overall perspective view showing another state in which the mobile terminal shown in FIG. 1 is slid. FIG. 4 is an overall perspective view showing a state in which the casing of the mobile terminal is tilted with respect to another casing. FIG. 5 is an overall cross-sectional view of the portable terminal of FIG.

  The mobile terminal 1 is schematically configured from a first housing 2, a second housing 3, and a third housing 4. The first housing 2, the second housing 3, and the third housing 4 each have a rectangular surface surrounded by a pair of short sides and a pair of long sides, and each has a substantially equal rectangular shape. Has been. The first housing 2, the second housing 3, and the third housing 4 can be in a state in which rectangular surfaces are overlapped with each other.

  A rectangular surface facing the outside of the first housing 2 is formed with a display unit 5 that displays information of the mobile terminal 1 and allows the user to visually recognize it. As the display unit 5, for example, a liquid crystal display can be used. The display unit 5 may be formed on the entire surface of the rectangular surface facing the outside of the first housing 2 or may be formed on a part of the surface.

  The mobile terminal 1 according to the present embodiment is configured such that a part of the first housing 2, the second housing 3, and the third housing 4 can be moved relative to other housings. It is. Hereinafter, an example will be described in the present embodiment.

  As shown in FIG. 2, the first casing 2 of the mobile terminal 1 can be slid relative to the surface of the second casing 3. At this time, the third housing 4 remains overlaid on the surface of the second housing 3 opposite to the surface to be slid. In a state where the first housing 2 is slid with respect to the second housing 3, the first operation unit 6 is exposed on the slide side surface of the second housing 3. In the following description, as shown in FIG. 2, a state in which the first housing 2 is slid in the longitudinal direction of the rectangular surface is referred to as a vertical slide.

  As shown in FIG. 3, the first casing 2 and the second casing 3 of the mobile terminal 1 are overlapped with each other, and the rectangular surface of the first casing 2 is placed on the third casing 4. It can be slid in the short direction side. In a state where the first housing 2 and the second housing 3 are simultaneously slid with respect to the third housing 4, the second operation unit 7 is exposed on the slide side surface of the third housing 4. In the following description, as shown in FIG. 3, the state in which the first housing 2 and the second housing 3 are slid in the longitudinal direction of the rectangular surface of the first housing 2 is referred to as a lateral slide. To do. For example, when the mobile terminal 1 is used, as shown in FIG. 2, a telephone call operation or the like can be performed with the first housing 2 being slid relative to the second housing 3 as shown in FIG. When performing, the first housing 2 and the second housing 3 can be slid simultaneously with respect to the third housing 4 as shown in FIG.

  Thus, the user can select the vertical slide or the horizontal slide of the mobile terminal 1 according to the operating environment of the mobile terminal 1, the content of information to be displayed, or the like. In the case of a vertical slide, the first operation unit 6 can be operated while visually recognizing the display unit 5. In the case of a horizontal slide, the operation can be performed by the second operation unit 7 while visually recognizing the display unit 5.

  Further, during the lateral slide, as shown in FIG. 4, the display unit 5 is placed on the first housing 2 and the second housing 3 with respect to the surface of the third housing 4 on which the second display unit 7 is formed. It can be started up so that the formed surface is inclined (tilt state). The portable terminal 1 is provided with a hinge portion 8 that rotates while supporting the second housing 3 in order to tilt the first housing 2 and the second housing 3 with respect to the third housing 4. ing.

  As shown in FIG. 5, a speaker 11 is built in the first housing 2 at both ends in the longitudinal slide direction (near the short side of the rectangle in plan view). One speaker may be provided near the short side of the first housing 2, or a plurality of speakers may be provided near the short side. The speaker 11 is configured to be equal to or less than the thickness of the first housing 2 including a fixing member that fixes the speaker 11 to the first housing 2 in a state of being attached to the first housing 2. .

  In the first housing 2, a sound emission hole 21 for propagating the sound emitted from the speaker 11 to the outside of the first housing 2 is opened on the surface on which the second housing 3 is slid. .

  FIG. 6 is a diagram illustrating a state in which the sliding surface of the first housing is viewed in plan. As shown in FIG. 6, in the mobile terminal 1 of the present embodiment, a plurality of substantially elliptical sound emitting holes 21 are provided at the end of the first housing 2 in the longitudinal sliding direction. Although only one end portion is shown in FIG. 6, the sound emission hole 21 is also provided at the opposite end portion of the first housing 2. Moreover, the sound emission hole 21 is provided according to the number and position of a speaker, and a shape and number are not specifically limited. As shown in FIG. 5, in a state where the first housing 2 and the second housing 3 are overlapped, the sound emitting hole 21 provided in the first housing 2 opens to the second housing 3 side. Therefore, the sound emitting hole 21 is not exposed to the appearance. For example, when the mobile terminal 1 is viewed from the display unit 5 side, the sound emitting hole 21 is not exposed.

  The first housing 2 is provided with a display drive unit for driving the display unit 5 and a wiring unit for the display unit 5 and the speaker 11, which are not shown in FIG. 5 and are omitted.

FIG. 7 is a cross-sectional view of the main part showing the configuration of the first embodiment of the portable terminal according to the present invention.
FIG. 7 shows a state where the mobile terminal 1 is not slid, that is, a state where the first housing 2, the second housing 3, and the third housing 4 are overlapped with each other.

  As shown in FIG. 7, in the state where the first housing 2 and the second housing 3 are overlapped with each other, at the end of the surface of the second housing 3 on the first housing 2 side and the sound emission A reflective surface 31 is formed in the vicinity of the hole 21. The reflection surface 31 is formed by chamfering a part of the corner of the short side of the second housing 3. The reflecting surface 31 has a shape that is inclined toward the end of the second housing 3 so as to be separated from the first housing 2. And the radiation | emission part 12 for propagating a sound to the exterior of the portable terminal 1 is provided in the edge part of the surface which overlap | superposed the 1st housing | casing 2 and the 2nd housing | casing 3, and the reflective surface 31 is provided. The structure faces the radiation portion 12.

  In addition, although it is more preferable to provide the reflective surface 31 in both the edge parts of the 2nd housing | casing 3, it can also be provided only in any one.

  In other words, the mobile terminal 1 of the present embodiment has a surface (first surface) in which the radiation portion 12 is formed by increasing the distance between the first housing 2 and the second housing 3 and the sound emitting hole 21 is provided. A reflecting surface 31 that is inclined with respect to the lower surface of the housing 2 and faces the radiating portion 12 is formed.

  In the state where the first housing 2 and the second housing 3 are overlapped, the end portions of the opposing surfaces of the first housing 2 and the second housing 3 are close to the end portions of the sound emission holes 21. The distance between the side edge (the right edge in the figure) and the surface of the second casing facing the first casing 2 is L2, and the edge opposite the end of the sound emission hole 21 (in the figure) The distance L1 between the left edge) and the surface of the second housing 3 facing the first housing 2 is defined as a distance L1. The mobile terminal 1 is formed with a radiation portion 12 provided with a reflective surface 31 having a shape in which the distance L2 is longer than the distance L1.

  When sound is generated from the speaker, the sound propagates from the inside of the first housing 2 to the outside of the first housing 2 through the sound emission hole 21. Then, the sound hits the reflection surface 31, is reflected toward the radiation unit 12, and propagates from the radiation unit 12 to the outside of the mobile terminal 1. At this time, the reflecting surface 31 has a function of smoothly propagating the sound propagating from the sound emitting hole toward the outside of the mobile terminal 1, and suppresses the sound propagating from the speaker 12 from being reflected to the speaker 12 side. The sound performance is prevented from deteriorating due to the sound remaining between the first housing 2 and the second housing 3.

For this reason, since the sound emission hole 21 of the speaker 11 is not exposed to the outside of the mobile terminal 1, the degree of freedom in design of the outer surface of the mobile terminal 1 can be ensured. Further, in a state where the user is viewing the display unit 5 without sliding any housing, the sound of the speaker 11 is reflected by the reflecting surface 31 of the second housing 3 and the display unit 5 side from the radiation unit 12 Therefore, good acoustic performance can be realized.
Further, even when the first housing 2 and the second housing 3 are slid simultaneously with respect to the third housing 4 as shown in FIG. 3, the sound is heard from the first housing 2 and the second housing. It can be reflected by the reflecting surface 31 located between the body 3 and propagated to the outside of the portable terminal 1. In this way, the sound is not blocked by the casing itself when the first casing 2 and the second casing 3 are simultaneously slid relative to the third casing 4 when watching TV. Can use the portable terminal 1 with good acoustic performance.

  Next, other embodiment of the portable terminal concerning this invention is shown. In the embodiments described below, members having the same configuration / action as those already described are denoted by the same or corresponding reference numerals in the drawings, and description thereof is simplified or omitted. In the following embodiments, the basic structure and operation of the mobile terminal are the same.

  FIG. 8: is principal part sectional drawing which shows the structure of 2nd Embodiment of the portable terminal concerning this invention. As shown in FIG. 8, the shape of the second casing 3 is smaller than that of the first casing 2, and the first casing 2 and the second casing 3 are overlapped with each other. This is different from the above embodiment in that the end 3a has a shape retracted to the opposite side compared to the end 2a of the first housing 2.

  Similar to the first embodiment, the mobile terminal 1 of the present embodiment has a reflection surface 31 at the end of the surface of the second housing 3 on the first housing 2 side and in the vicinity of the sound emission hole 21. Is formed. The reflective surface 31 is formed by chamfering the corner of the end 3 a of the second housing 3. The reflecting surface 31 has a shape that is inclined so as to be separated from the first housing 2 toward the end 3 a of the second housing 3. A radiation portion 12 for propagating sound to the outside of the mobile terminal 1 is provided at the end of the surface where the first housing 2 and the second housing 3 are overlapped. The configuration faces the portion 12.

  As described above, in the mobile terminal 1 of the present embodiment, the radiating portion 12 is formed by increasing the distance between the first housing 2 and the second housing 3 as in the above-described embodiment, and the sound emitting hole 21 is formed. And a reflecting surface 31 that is inclined with respect to the surface (the lower side surface of the first housing 2 in the figure) and faces the radiating portion 12 is formed.

  Further, the reflection surface 31 has a distance L2 between the edge near the end of the sound emitting hole 21 and the surface of the second housing 3 facing the first housing 2 at the end of the sound emitting hole 21. The shape is longer than the distance L <b> 1 between the opposite edge and the surface of the second housing 3 facing the first housing 2, and the reflection surface 31 is provided so as to face the radiation portion 12.

  According to the configuration of the mobile terminal 1 of the present embodiment, it is possible to avoid the sound emission hole 21 of the speaker 11 from being exposed to the outside of the mobile terminal 1 and to ensure the degree of freedom in design of the outer surface of the mobile terminal 1. Can do. Further, in a state where the user is viewing the display unit 5 without sliding any housing, the sound of the speaker 11 is reflected by the reflecting surface 31 of the second housing 3 and the display unit 5 side from the radiation unit 12 Therefore, good acoustic performance can be realized.

  FIG. 9: is principal part sectional drawing which shows the structure of 3rd Embodiment of the portable terminal concerning this invention. As shown in FIG. 9, the shape of the second housing 3 is smaller than that of the first housing 2, and the first housing 2 and the second housing 3 are overlapped with each other. The end 3 a is retracted to the opposite side compared to the end 2 a of the first housing 2. Further, the portable terminal 1 of the present embodiment is reflected at the end of the surface of the second housing 3 on the first housing 2 side and in the vicinity of the sound emission hole 21, as in the first embodiment. A surface 31 is formed. The reflective surface 31 is formed by chamfering the corner of the end 3 a of the second housing 3. The reflecting surface 31 has a shape that is inclined so as to be separated from the first housing 2 toward the end 3 a of the second housing 3. In addition, a radiating portion 12 for propagating sound to the outside of the mobile terminal 1 is provided at the end of the surface where the first housing 2 and the second housing 3 are overlapped, and the reflecting surface 31 is provided. The structure faces the radiation portion 12.

  In the portable terminal 1 of the present embodiment, the boundary portion between the reflective surface 31 and a flat surface other than the reflective surface 31 corresponds to the sound emitting hole 21 on the surface of the second housing 3 on the first housing 2 side. In position. Similarly to the above-described embodiment, the mobile terminal 1 has a surface where the radiation portion 12 is formed by increasing the distance between the first housing 2 and the second housing 3 and the sound emitting hole 21 is provided (first surface). 1 is a configuration in which a reflective surface 31 that is inclined with respect to the lower surface of the housing 2 and faces the radiating portion 12 is formed. The distance L2 between the edge near the end of the sound emission hole 21 and the surface of the second housing 3 facing the first housing 2 is the edge opposite to the end of the sound emission hole 21. And the surface of the second housing 3 facing the first housing 2 is longer than the distance L1, and the reflecting surface 31 is provided so as to face the radiation portion 12.

  According to the configuration of the mobile terminal 1 of the present embodiment, it is possible to avoid the sound emission hole 21 of the speaker 11 from being exposed to the outside of the mobile terminal 1 and to ensure the degree of freedom in design of the outer surface of the mobile terminal 1. Can do. Further, in a state where the user is viewing the display unit 5 without sliding any housing, the sound of the speaker 11 is reflected by the reflecting surface 31 of the second housing 3 and the display unit 5 side from the radiation unit 12 Therefore, good acoustic performance can be realized.

  FIG. 10 is a cross-sectional view of the main part showing the configuration of the fourth embodiment of the mobile terminal according to the present invention. Similar to the first embodiment, the mobile terminal 1 of the present embodiment has a reflection surface 31 at the end of the surface of the second housing 3 on the first housing 2 side and in the vicinity of the sound emission hole 21. Is formed. The reflective surface 31 is formed by chamfering the corner of the end 3 a of the second housing 3. The reflecting surface 31 has a shape that is inclined so as to be separated from the first housing 2 toward the end 3 a of the second housing 3. In addition, a radiating portion 12 for propagating sound to the outside of the mobile terminal 1 is provided at the end of the surface where the first housing 2 and the second housing 3 are overlapped, and the reflecting surface 31 is provided. The structure faces the radiation portion 12.

  In the portable terminal 1 of the present embodiment, the boundary portion between the reflective surface 31 and a flat surface other than the reflective surface 31 corresponds to the sound emitting hole 21 on the surface of the second housing 3 on the first housing 2 side. In position. Similarly to the above-described embodiment, the mobile terminal 1 has a surface where the radiation portion 12 is formed by increasing the distance between the first housing 2 and the second housing 3 and the sound emitting hole 21 is provided (first surface). 1 is a configuration in which a reflective surface 31 that is inclined with respect to the lower surface of the housing 2 and faces the radiating portion 12 is formed. The distance L2 between the edge near the end of the sound emission hole 21 and the surface of the second housing 3 facing the first housing 2 is the edge opposite to the end of the sound emission hole 21. And the surface of the second housing 3 facing the first housing 2 is longer than the distance L1, and the reflecting surface 31 is provided so as to face the radiation portion 12.

  According to the configuration of the mobile terminal 1 of the present embodiment, it is possible to avoid the sound emission hole 21 of the speaker 11 from being exposed to the outside of the mobile terminal 1 and to ensure the degree of freedom in design of the outer surface of the mobile terminal 1. Can do. Further, in a state where the user is viewing the display unit 5 without sliding any housing, the sound of the speaker 11 is reflected by the reflecting surface 31 of the second housing 3 and the display unit 5 side from the radiation unit 12 Therefore, good acoustic performance can be realized.

  FIG. 11: is principal part sectional drawing which shows the structure of 5th Embodiment of the portable terminal concerning this invention. As shown in FIG. 11, the shape of the first housing 2 is smaller than that of the second housing 3, and the first housing 2 and the second housing 3 are overlapped with each other. The end 2 a is retracted to the opposite side compared to the end 3 a of the second housing 3. Further, the portable terminal 1 of the present embodiment is reflected at the end of the surface of the second housing 3 on the first housing 2 side and in the vicinity of the sound emission hole 21, as in the first embodiment. A surface 31 is formed. The reflective surface 31 is formed by chamfering the corner of the end 3 a of the second housing 3. The reflecting surface 31 has a shape that is inclined so as to be separated from the first housing 2 toward the end 3 a of the second housing 3. In addition, a radiating portion 12 for propagating sound to the outside of the mobile terminal 1 is provided at the end of the surface where the first housing 2 and the second housing 3 are overlapped, and the reflecting surface 31 is provided. The structure faces the radiation portion 12.

  Similarly to the above-described embodiment, the mobile terminal 1 has a surface where the radiation portion 12 is formed by increasing the distance between the first housing 2 and the second housing 3 and the sound emitting hole 21 is provided (first surface). 1 is a configuration in which a reflective surface 31 that is inclined with respect to the lower surface of the housing 2 and faces the radiating portion 12 is formed. The distance L2 between the edge near the end of the sound emission hole 21 and the surface of the second housing 3 facing the first housing 2 is the edge opposite to the end of the sound emission hole 21. And the surface of the second housing 3 facing the first housing 2 is longer than the distance L1, and the reflecting surface 31 is provided so as to face the radiation portion 12.

  According to the configuration of the mobile terminal 1 of the present embodiment, it is possible to avoid the sound emission hole 21 of the speaker 11 from being exposed to the outside of the mobile terminal 1 and to ensure the degree of freedom in design of the outer surface of the mobile terminal 1. Can do. Further, in a state where the user is viewing the display unit 5 without sliding any housing, the sound of the speaker 11 is reflected by the reflecting surface 31 of the second housing 3 and the display unit 5 side from the radiation unit 12 Therefore, good acoustic performance can be realized.

  Further, in the mobile terminal 1 of the present embodiment, since the end 2a of the first casing 2 is retracted from the end 3a of the second casing 3, the sound reflected by the reflecting surface 31 is the first casing. Therefore, the sound can be more efficiently propagated to the display unit 5 side.

  FIG. 12: is principal part sectional drawing which shows the structure of 6th Embodiment of the portable terminal concerning this invention. As shown in FIG. 12, the first casing 2 is smaller in shape than the second casing 3, and the first casing 2 and the second casing 3 are overlapped with each other in the first casing 2. The end portion 2 a has a shape retracted compared to the end portion 3 a of the second housing 3. Further, the portable terminal 1 of the present embodiment is reflected at the end of the surface of the second housing 3 on the first housing 2 side and in the vicinity of the sound emission hole 21, as in the first embodiment. A surface 31 is formed. The reflective surface 31 is formed by chamfering the corner of the end 3 a of the second housing 3. The reflecting surface 31 has a shape that is inclined so as to be separated from the first housing 2 toward the end 3 a of the second housing 3. In addition, a radiating portion 12 for propagating sound to the outside of the mobile terminal 1 is provided at the end of the surface where the first housing 2 and the second housing 3 are overlapped, and the reflecting surface 31 is provided. The structure faces the radiation portion 12.

  Similarly to the above-described embodiment, the mobile terminal 1 has a surface where the radiation portion 12 is formed by increasing the distance between the first housing 2 and the second housing 3 and the sound emitting hole 21 is provided (first surface). 1 is a configuration in which a reflective surface 31 that is inclined with respect to the lower surface of the housing 2 and faces the radiating portion 12 is formed. The distance L2 between the edge near the end of the sound emission hole 21 and the surface of the second housing 3 facing the first housing 2 is the edge opposite to the end of the sound emission hole 21. And the surface of the second housing 3 facing the first housing 2 is longer than the distance L1, and the reflecting surface 31 is provided so as to face the radiation portion 12.

  In the present embodiment, a return portion 31a is formed in the reflective surface 31 in the vicinity of the end portion 3a of the second housing 3 so that a part of the surface warps toward the first housing 2 side.

  According to the configuration of the mobile terminal 1 of the present embodiment, it is possible to avoid the sound emission hole 21 of the speaker 11 from being exposed to the outside of the mobile terminal 1 and to ensure the degree of freedom in design of the outer surface of the mobile terminal 1. Can do. Further, in a state where the user is viewing the display unit 5 without sliding any housing, the sound of the speaker 11 is reflected by the reflecting surface 31 of the second housing 3 and the display unit 5 side from the radiation unit 12 Therefore, good acoustic performance can be realized.

  Further, in the mobile terminal 1 of the present embodiment, the end 2a of the first housing 2 is retracted from the end 3a of the second housing 3, and a part of the reflection surface 31 is directed to the first housing 2 side. A bent back portion 31a is provided. For this reason, since the sound reflected by the reflecting surface 31 is reflected also to the return part 31a, it becomes easy to reflect to the display part 5 side among the propagated sounds, and a sound can be propagated still more efficiently.

  The present invention is not limited to the embodiments described above, and appropriate modifications and improvements can be made. For example, the portable terminal according to the present invention may be a PDA (Personal Digital Assistant).

It is a whole perspective view which shows an example of the usage condition of the portable terminal concerning this invention. It is a whole perspective view which shows the state which slid the portable terminal shown in FIG. It is a whole perspective view which shows another state which made the portable terminal shown in FIG. 1 slide. It is a whole perspective view which shows the state which inclined the case (tilt) of the housing | casing of the portable terminal with respect to another housing | casing. FIG. 2 is an overall cross-sectional view of the mobile terminal of FIG. It is a figure which shows the state which planarly viewed the surface to slide of a 1st housing | casing. It is principal part sectional drawing which shows the structure of 1st Embodiment of a portable terminal. It is principal part sectional drawing which shows the structure of 2nd Embodiment of a portable terminal. It is principal part sectional drawing which shows the structure of 3rd Embodiment of a portable terminal. It is principal part sectional drawing which shows the structure of 4th Embodiment of a portable terminal. It is principal part sectional drawing which shows the structure of 5th Embodiment of a portable terminal. It is principal part sectional drawing which shows the structure of 6th Embodiment of a portable terminal.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable terminal 2 1st housing | casing 3 2nd housing | casing 4 3rd housing | casing 5 Display part 6 1st operation part 7 2nd operation part 11 Speaker 12 Radiation part 21 Sound emission hole 31 Reflecting surface

Claims (8)

A first housing;
A second housing coupled to the first housing in an overlapping manner;
A speaker provided in the first housing;
A sound emitting hole provided on a surface of the first housing on the side overlapped with the second housing;
In a state where the first casing and the second casing are overlapped, a radiation portion provided between the first casing and the second casing;
A portable terminal provided with a reflective surface that is inclined with respect to the surface on which the sound emitting hole is provided and faces the radiation portion. A first housing;
A second housing coupled to the first housing in an overlapping manner;
A speaker provided in the first housing;
A sound emitting hole provided on a surface of the first housing that is overlapped with the second housing;
In the state where the first housing and the second housing are overlapped, the end portions of the opposing surfaces of the first housing and the second housing are disposed at the end portions of the sound emitting holes. The distance between the edge on the near side and the surface of the second casing facing the first casing is such that the edge on the opposite side of the end of the sound emitting hole and the first casing are opposed to each other. A mobile terminal, wherein a radiation portion longer than a distance from a surface of the second housing is formed.   The said 1st housing | casing has a display part which displays information, The said display part was formed in the substantially rectangular surface enclosed by a pair of short side and a pair of long side. Mobile device.   The first casing is movably connected to the second casing, and the first casing is moved in the longitudinal direction of the surface on which the display unit is formed. The mobile terminal according to claim 3, wherein a first operation unit is provided on a surface to be operated.   A third housing movably coupled to the second housing, wherein the third housing is moved in a short direction of a surface on which the display unit is formed; The mobile terminal according to claim 3, wherein a second operation unit is provided on a surface exposed to the light.   The portable terminal according to claim 5, wherein the first casing and the second casing can be slid simultaneously with respect to the third casing.   The mobile terminal according to claim 3, wherein at least one speaker is provided in the vicinity of the short side of the first housing.   The second housing has a display unit for displaying information, and the display unit has a rectangular parallelepiped shape formed on a substantially rectangular surface surrounded by a pair of short sides and a pair of long sides. The portable terminal according to claim 1, wherein the reflection surface is a surface obtained by chamfering at least one corner of the short side.

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