JP2009290561A - Portable electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable electronic apparatus, having less influence on design and having a housing which is superior in sound release. <P>SOLUTION: This cellphone set 1 has a housing 3 formed with a sixth sound releasing hole 27, a second speaker 35 provided in the housing 3 to output sound via the sixth sound releasing hole 27, and a wrapping member 21 for covering only a part of the sixth sound releasing hole 27 by a peripheral fringe part 21a on the outer surface of the housing 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable electronic device such as a mobile phone, a digital camera, a PDA (Personal Digital Assistant), and a game machine.

Portable electronic devices having an electroacoustic conversion unit such as a speaker are known (for example, Patent Documents 1 and 2). In such a portable electronic device, a sound hole is generally formed in the housing in order to improve sound leakage between the electroacoustic conversion unit and the outside of the housing.
JP 2004-80389 A JP 2005-94631 A

  However, the sound hole may impair the design of the housing. For example, if a sound hole is formed in a flat portion of a housing molded in one color with resin, the sound hole becomes conspicuous. Furthermore, even if it is intended to appropriately set the size and / or shape of the sound hole so that the sound hole is not conspicuous, it may be difficult to form the sound hole having a desired size and / or shape. For example, when the sound hole is formed by the protrusion formed on the mold at the same time as forming the housing by injection molding, the protrusion of the mold is thinned or thinned due to the necessity of securing a certain degree of strength. There is a limit to doing. As a result, there is a limit to the miniaturization of sound holes.

  An object of the present invention is to provide a portable electronic device having a housing with little influence on the design and good sound omission.

  A portable electronic device according to the present invention includes a housing in which a sound hole is formed, an electroacoustic conversion unit that is provided in the housing and performs at least one of output and input of sound through the sound hole, and an outside of the housing And an exterior member that is provided on a side surface and covers only a part of the sound hole with a peripheral edge portion.

  Preferably, the exterior member constitutes a protrusion that supports the housing so that the sound hole is separated from the plane when the housing is placed on a plane with the sound hole facing downward. .

  Preferably, the sound hole is a slit, and the exterior member covers a portion on one side in the short direction of the slit by the peripheral edge portion extending along the longitudinal direction of the slit.

  Suitably, the said peripheral part of the said exterior member is inserted in the said one side part of the transversal direction of the said slit.

  Preferably, the housing has a step portion in which the slit is wider on the outer side than the inner side of the housing, and the peripheral portion of the exterior member is the step from the outer side to the inner side of the housing. It is abutted against the part.

Preferably, the housing is integrally formed with the facing portion facing the electroacoustic conversion portion and the facing portion, extends from the facing portion to the inside of the housing, and engages the electroacoustic conversion portion on the distal end side. And an engaging part formed with a claw part to be gripped, and an opening part facing the claw part is formed in the facing part, and the exterior member covers the opening part. Yes.

  Suitably, the said opening part is a punch hole when the said nail | claw part is integrally molded.

  Preferably, an imaging unit provided in the housing is provided, a photography window for exposing the imaging unit is formed in the housing, and the exterior member has a translucent part, and the translucent part Is attached to the housing so as to cover the photographing window.

  According to the present invention, it is possible to provide a portable electronic device having a housing that has little influence on the design and has good sound omission.

  FIG. 1 is a perspective view of a mobile phone 1 according to an embodiment of the present invention as viewed from the front side. FIG. 2 is a perspective view of the mobile phone 1 as seen from the back side. FIG. 3 is a side view of the mobile phone 1.

  The mobile phone 1 is constituted by a so-called straight type mobile phone and has one housing 3. The housing 3 is formed in a thin rectangular parallelepiped shape, for example. In the following description, the upper surface of the housing 3 in FIG. 1 may be referred to as a front surface portion 3a, and the back surface side thereof may be referred to as a back surface portion 3b. In addition, the upper side, the lower side, the upper left side, and the lower right side in FIG.

  The housing 3 includes, for example, a front case 5 that constitutes the front surface portion 3a side, and a rear case 7 and a lid 9 (FIG. 2) that constitute the back surface portion 3b. The front case 5, the rear case 7, and the lid 9 are each made of resin, for example. The front case 5 and the rear case 7 are fixed to each other by, for example, screws (not shown). Between the front case 5 and the rear case 7, for example, a circuit board (not shown) and a shield case are sandwiched. For example, the lid 9 is fixed to the rear case 7 by an engaging portion (not shown). The lid 9 is for inserting and removing a battery (not shown) into the housing 3.

  The housing 3 is provided with various electronic components. For example, the housing 3 includes a first speaker 83 for communication (see FIG. 9) that outputs sound from a first sound emitting hole 3g (FIG. 1) that opens on the upper side of the front portion 3a, and a lower side of the front portion 3a. Microphone 87 for telephone calls (see FIG. 9) through which sound is input from sound collecting hole 3h (FIG. 1) opened in FIG. 1, operation unit 11 (FIG. 1) for receiving user operations from the front unit 3a side, front unit 3a side Multi-purpose to output sound from the display unit 13 (FIG. 1) for displaying an image on the screen, a plurality of second sound emission holes 15 (FIG. 2) and a third sound emission hole 17 (FIG. 2) opened on the back surface 3b side. The second speaker 35 (see FIG. 6) and an image pickup unit 89 (see FIG. 9) for picking up an image of the subject are provided via the translucent part 19 (FIG. 2) provided on the back surface part 3b side.

  The second speaker 35 is, for example, a notification sound for notifying the presence or absence of an incoming call, a sound effect for confirming that the operation unit 11 has been operated, and / or reproducing a song recorded on the mobile phone 1. Used for sound output. Therefore, the second speaker 35 outputs a relatively large sound to the outside of the housing 3 through the second sound emitting hole 15 and the third sound emitting hole 17 in a state where the mobile phone 1 is separated from the user's ear. Is required.

  An exterior member 21 (FIGS. 2 and 3) is provided on the outer surface of the back surface portion 3 b of the housing 3. The housing 3 and the exterior member 21 constitute a housing for the entire mobile phone 1. The second sound emitting hole 15 and the light transmitting part 19 are disposed in the exterior member 21. The third sound emitting hole 17 is disposed adjacent to the exterior member 21. The translucent part 19 may be regarded as a part of the exterior member 21, but hereinafter, for convenience of explanation, the exterior member 21 does not include the translucent part 19.

  The exterior member 21 is integrally molded by, for example, injection molding that fills a mold with resin. For example, the exterior member 21 is engaged with the rear case 7 by an engagement portion (not shown), or an adhesive member 45 (see FIG. 6) such as an adhesive or a double-sided tape is interposed between the exterior member 21 and the rear case 7. It is fixed to the rear case 7 by being arranged.

  The exterior member 21 protrudes to the back side from the back surface portion 3 b of the housing 3. The exterior member 21 is located above the center of gravity (not shown) of the mobile phone 1. Therefore, as shown in FIG. 3, when the cellular phone 1 is placed on the planar placement surface PS <b> 1 with the back side facing downward (upward in FIG. 3), the exterior member 21 and the housing 3 are placed. It is supported by the support part 3p comprised by the lower side corner | angular part of the back surface part 3b. As a result, the portion of the housing 3 between the exterior member 21 and the support portion 3p is separated from the placement surface PS1. Note that the comparison surface PS2 is a flat surface parallel to the back surface portion 3b and located on the lower surface of the exterior member 21, and is illustrated to show the inclination of the mobile phone 1 placed on the placement surface PS1. Yes.

  FIG. 4 is an enlarged plan view (rear view) showing the vicinity of the exterior member 21. FIG. 5 is a perspective view showing the exterior member 21 and the like removed from the rear case 7. 5, the panel member 7b (FIG. 4) which comprises the upper side part of the back surface part 3b of the rear case 7 is also removed and shown from the rear case 7.

  The plurality of second sound emission holes 15 are provided in the plurality of fourth sound emission holes 23 (FIG. 5) provided in the rear case 7 and the exterior member 21 and are opposed to the plurality of fourth sound emission holes 23. The fifth sound emitting hole 25 (FIG. 4). For example, the plurality of second sound emitting holes 15 are arranged vertically and horizontally in the arrangement region of the exterior member 21. The planar shape of the second sound emitting hole 15 is, for example, a circle or a rectangle.

  The third sound emitting hole 17 includes a sixth sound emitting hole 27 (FIG. 5) provided in the rear case 7 and a gap between the peripheral edge portion 21 a (FIG. 4) of the exterior member 21 and the rear case 7. Has been. The gap between the peripheral edge 21a and the rear case 7 is formed, for example, by providing a notch 29 in the peripheral edge 21a. The third sound emitting hole 17 is disposed, for example, on the support portion 3p (FIG. 3) side of the exterior member 21. The planar shape of the third sound emitting hole 17 is, for example, a long shape along the peripheral edge 21 a of the exterior member 21. In other words, the third sound emitting hole 17 is a slit.

  A shooting window 31 (FIG. 5) and a flash opening 33 (FIG. 5) are provided at a position of the rear case 7 facing the light transmitting portion 19 (FIG. 4). The imaging unit 89 (see FIG. 9) is provided in the rear case 7 so as to face the imaging window 31. Light from the subject enters the imaging unit 89 in the rear case 7 via the translucent unit 19 and the imaging window 31. A flash unit (not shown) is provided in the rear case 7 so as to face the flash opening 33, and irradiates the subject with light through the flash opening 33 and the translucent part 19.

  6 is a cross-sectional view taken along line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG.

  The second speaker 35 has, for example, a substantially disk-shaped outer shape, and has a sound emitting surface 35a on one surface (the surface on the upper side in FIG. 6 and FIG. 7), and is not shown on the back surface. It has a terminal. The second speaker 35 is constituted by, for example, a dynamic speaker. Although not particularly illustrated, the second speaker 35 includes a coil connected to a terminal, a permanent magnet inserted through the coil, and a diaphragm fixed to the coil or the permanent magnet. Have. The electric signal input to the terminal is converted into air vibration (that is, sound) through the coil, the permanent magnet, and the diaphragm, and is output from the sound emitting surface 35a. The second speaker 35 is disposed in the housing 3 with the sound emitting surface 35 a facing the second sound emitting hole 15 and the third sound emitting hole 17.

  A dustproof member 37 is provided between the sound emitting surface 35 a and the inner surface of the housing 3. The dustproof member 37 has a frame portion 39 and a mesh portion 41 stretched on the frame portion 39. The frame portion 39 is made of, for example, an elastic member such as sponge or rubber, and is in contact with the outer peripheral portion of the sound emitting surface 35a. The mesh portion 41 is formed of, for example, a mesh-like sheet formed of a flexible resin or a cloth woven with fibers, and faces the second sound emitting hole 15 and the third sound emitting hole 17. The dustproof member 37 prevents dust and the like from entering the housing 3 from the second sound emitting hole 15 and the third sound emitting hole 17.

  A blindfold member 43 is provided in a region between the rear case 7 and the exterior member 21 and in which the plurality of second sound emission holes 15 are disposed. The blindfold member 43 is formed of, for example, a mesh-like member, and is fixed to the outer surface of the rear case 7 with an adhesive member such as an adhesive or a double-sided tape. The mesh-like member constituting the blindfold member 43 is, for example, a mesh-like sheet formed of a flexible resin or a cloth woven with fibers, like the mesh portion 41.

  The blindfold member 43 is, for example, for reducing the influence of the second sound emitting hole 15 on the design. For example, when the color of the rear case 7 and the color of the exterior member 21 are different, the fourth sound emission hole 23 of the rear case 7 is formed via the fifth sound emission hole 25 formed in the exterior member 21. When the part is visually recognized, the design may be deteriorated. Therefore, such inconvenience is solved by making the blindfold member 43 the same color as the rear case 7.

  The blindfold member 43 also functions as a dustproof member that prevents dust and the like from entering the housing 3 from the fifth sound emitting hole 25. However, the blindfold member 43 has a coarser mesh than the mesh portion 41 of the dust-proof member 37, and basically, the dust-proof member 37 prevents dust and the like from entering the housing 3. The eyes of the blindfold member 43 may be as rough as the eyes of the dustproof member 37, or may be finer than the eyes of the dustproof member 37.

  The exterior member 21 has a flat plate-like base portion 21b in which the fifth sound emitting hole 25 is formed, and a peripheral edge portion 21a that bends toward the rear case 7 on the outer periphery of the base portion 21b. On the other hand, a groove portion 7h (see also FIG. 5) extending along the peripheral edge portion 21a in a plan view is formed on the surface portion constituting the back surface portion 3b of the rear case 7. The exterior member 21 is attached to the outer surface of the rear case 7 so that the peripheral edge 21a is fitted in the groove 7h. At this time, the distal end of the peripheral edge portion 21a is abutted from the outer side of the housing 3 to the inner side with respect to the bottom of the groove portion 7h. Further, the inner surface of the base portion 21 b and the outer surface of the rear case 7 are bonded by an adhesive member 45. Note that, in the outer surface of the rear case 7, a concave portion in which the blindfold member 43 is disposed is formed in the region where the second sound emitting hole 15 is disposed. The base portion 21 b is supported via an adhesive member 45 at the outer peripheral portion of the rear case 7 in the arrangement region of the second sound emitting holes 15.

  The sixth sound emitting hole 27 is formed by forming a part of the side on the support portion 3p side (the right side in FIG. 6) of the groove portion 7h in a rectangular shape in a plan view in the shape of a through hole. It comprises, and is comprised including a part of groove part 7h (refer also FIG. 5). And the 6th sound emission hole 27 is extended in the direction (direction orthogonal to the direction from the exterior member 21 to the support part 3p) along the peripheral part 21a of the exterior member 21 between the exterior member 21 and the support part 3p. It is formed in a slit shape.

  The sixth sound emitting hole 27 is formed so that the outer side of the housing 3 is wider than the inner side, and has a small diameter part 27a and a large diameter part 27b. Specifically, at the arrangement position of the sixth sound emission hole 27, the groove portion 7h is expanded in diameter toward the arrangement side of the exterior member 21 (left side in FIG. 6), and the slit-like through hole-like portion is the support portion 3p. It is formed on the side (see also FIG. 5). The enlarged diameter portion is a large diameter portion 27b, and the through hole portion is a small diameter portion 27a. In addition, it can also be understood that the step portion 7d is provided on the surface on the exterior member 21 side of the inner peripheral surface of the sixth sound emitting hole 27 so that the small diameter portion 27a and the large diameter portion 27b are formed. .

  The cutout portion 29 of the exterior member 21 is formed, for example, by bending the peripheral edge portion 21a toward the center of the base portion 21b at the position where the sixth sound emitting hole 27 is disposed, corresponding to the diameter of the groove portion 7h. Yes. The bent peripheral edge portion 21a is inserted into the sixth sound emitting hole 27 and abuts against the stepped portion 7d from the outer side to the inner side of the housing 3.

  The peripheral edge portion 21 a is in contact with the surface on the exterior member 21 side (the left side in FIG. 6) of the inner peripheral surface of the large diameter portion 27 b of the sixth sound emitting hole 27. On the other hand, the thickness of the peripheral portion 21a is larger than the protruding amount of the stepped portion 7d and smaller than the diameter of the large diameter portion 27b. Accordingly, between the peripheral edge portion 21a and the surface (edge portion) on the support portion 3p side (the right side in FIG. 6) of the inner peripheral surface of the small diameter portion 27a of the sixth sound emitting hole 27, the small diameter portion 27a is connected. A gap that forms a part of the third sound emitting hole 17 is formed. In other words, only a part of the sixth sound emitting hole 27 (or the small diameter portion 27 a) is covered by the peripheral edge portion 21 a of the exterior member 21. More specifically, the slit-like sixth sound emitting hole 27 (or small diameter portion 27a) is covered with a peripheral portion 21a extending along the longitudinal direction of the slit on one side in the short side direction of the slit.

  8 is a cross-sectional view taken along line VIII-VIII in FIG.

  The rear case 7 has a locking portion 47 for holding the second speaker 35. A plurality of (two in the present embodiment) locking portions 47 are provided on the outer peripheral side of the second speaker 35. The locking portion 47 protrudes toward the inner side of the housing 3. A claw portion 47 a that protrudes from the outer peripheral side of the second speaker 35 to the inner peripheral side and engages and grips the second speaker 35 from the inner side to the outer side of the housing 3 is formed at the tip of the locking portion 47. Has been. The second speaker 35 is fixed to the rear case 7 by being locked to the claw portion 47a while receiving the urging force from the frame portion 39 of the dustproof member 37, for example.

  An opening 49 (see also FIG. 5) facing the claw portion 47a is formed in the facing portion 7c facing the second speaker 35 of the rear case 7. The opening 49 is a push hole when the opposing portion 7c and the locking portion 47 (including the claw portion 47a) are integrally formed by injection molding in which a molten resin is filled into a mold. That is, the opening 49 is formed by the mold protrusion 101 that forms the outer surface of the housing 3 of the claw 47a. As shown in FIGS. 4 and 5, the opening 49 is covered with the exterior member 21.

  FIG. 9 is a block diagram showing the configuration of the signal processing system of the mobile phone 1.

  The cellular phone 1 includes a CPU 71, a memory 73, a communication processing unit 75, an acoustic processing unit 77, and an image processing unit 79. Each of these parts is constituted by, for example, an IC (not shown) provided on a circuit board (not shown) provided in the housing 3.

  The CPU 71 and the memory 73 function as a control unit that performs predetermined calculations based on signals from various units such as the operation unit 11 and executes control of various units such as the image processing unit 79.

  The communication processing unit 75 includes a high frequency circuit. The communication processing unit 75 performs acoustic communication and image data processed by the CPU 71 in order to communicate with other portable terminal devices and servers via a communication system (telephone network or the Internet) by wireless communication using radio waves. Are modulated and transmitted via the antenna 81. The communication processing unit 75 demodulates the signal received via the antenna 81 and outputs the demodulated signal to the CPU 71.

  The acoustic processing unit 77 converts the acoustic data from the CPU 71 into an electrical signal and outputs the electrical signal to the first speaker 83 and the second speaker 35 for calling. The first speaker 83 and the second speaker 35 convert the electric signal from the sound processing unit 77 into sound and output the sound. On the other hand, the microphone 87 converts the input sound into an electrical signal and outputs it to the sound processing unit 77. The acoustic processing unit 77 converts the electrical signal from the microphone 87 into acoustic data and outputs it to the CPU 71.

  The image processing unit 79 converts the image data from the CPU 71 into an image signal and outputs it to a display unit such as the display unit 13. Further, the imaging signal (image data) output from the imaging unit 89 is converted into image data of a predetermined format and output to the CPU 71.

  According to the embodiment described above, the mobile phone 1 includes the housing 3 in which the sixth sound emission hole 27 is formed, and the second that is provided in the housing 3 and outputs sound through the sixth sound emission hole 27. Since it has the speaker 35 and the exterior member 21 that is provided on the outer surface of the housing 3 and covers only a part of the sixth sound emitting hole 27 (or the small diameter portion 27a) by the peripheral edge portion 21a, there is little influence on the design. Thus, a housing structure with good sound omission is realized. That is, the sixth sound emission hole 27 (third sound emission hole 17) is not conspicuous integrally with the boundary between the exterior member 21 and the housing 3. As a result, for example, the sixth sound emitting hole 27 (third sound emitting hole 17) can be made larger (longer along the peripheral edge 21a in the embodiment). Further, when it is difficult to make the small diameter portion 27a small (in the embodiment, the slit width is narrow), for example, the small diameter portion 27a is made small due to the limit of miniaturization of the protrusion of the mold forming the small diameter portion 27a in the injection molding. When it is difficult to make it small, the size of the small-diameter portion 27a can be substantially reduced by covering a part with the exterior member 21.

  The exterior member 21 moves the housing 3 so that the sixth sound emission hole is spaced from the placement surface PS1 when the housing 3 is placed on the flat placement surface PS1 with the sixth sound emission hole 27 facing downward. Since the projecting portion is supported (see FIG. 3 and FIG. 6), that is, the exterior member 21 is the second speaker 35 even when the mobile phone 1 is placed on the planar placement surface PS1. For example, the design can be improved and the number of parts can be reduced. Moreover, since the sixth sound emitting hole 27 is formed at the base of the protrusion (exterior member 21), the protruding amount of the outer member 21 is the distance from the mounting surface PS1 of the sixth sound emitting hole 27 as it is. Therefore, it is easy to secure the separation distance.

  The sixth sound emitting hole 27 is a slit, and the exterior member 21 covers a portion on one side in the short direction of the slit with a peripheral edge portion 21a extending along the longitudinal direction of the slit. The opening area itself can be made large to improve sound leakage, and the width of the third sound emitting hole 17 can be made small and shaped along the peripheral edge 21a so as to be inconspicuous.

  Since the peripheral edge portion 21 a of the exterior member 21 is inserted into a portion on one side (exterior member 21 side) in the short direction of the slit, the sixth sound emitting hole 27 (large diameter portion 27 b) is the exterior member 21. The positioning holes (grooves) are also used. Therefore, the design can be further improved and the structure can be simplified. Furthermore, the load F applied to the base 21b of the exterior member 21 by supporting the base 21b of the exterior member 21 directly on the surface of the rear case 7 or indirectly via the adhesive member 45 (see FIG. 7). Can be appropriately released to the rear case 7, and damage to the exterior member 21 can be suppressed.

  The housing 3 has a slit-like sixth sound emission hole 27 that is wider on the outer side than the inner side of the housing 3 on one side (the exterior member 21 side) of the inner peripheral surface of the sixth sound emission hole 27. Since the peripheral portion 21a of the exterior member 21 is abutted against the step portion 7d from the outside to the inside of the housing 3, the exterior member 21 is formed by the peripheral portion 21a. Is also supported by the housing 3, and the strength of the exterior member 21 against the load F can be further improved.

  The housing 3 is formed integrally with the facing portion 7c facing the second speaker 35 and the facing portion 7c, extends from the facing portion 7c to the inside of the housing 3, and on the inner side of the housing 3 with respect to the second speaker 35 at the tip side. A locking portion 47 formed with a claw portion 47a that engages from the outside to the outside, and an opening 49 that faces the claw portion 47a is formed in the facing portion 7c. Since the opening 49 is covered, the second speaker 35 can be easily attached to the rear case 7 with a simple configuration, and the opening is a push hole when the claw portion 47a is integrally formed with the facing portion 7c. The exterior member 21 is also used as a member for hiding the portion 49, so that the number of parts can be reduced.

  The mobile phone 1 has an imaging unit 89 provided inside the housing 3, the imaging window 31 that exposes the imaging unit 89 is formed in the housing 3, and the exterior member 21 has a translucent unit 19. Since the translucent part 19 is attached to the housing 3 so as to cover the photographing window 31, the mobile phone 1 can be miniaturized by making the imaging part 89 and the second speaker 35 adjacent to each other, and the exterior member 21 is transparent. It is used for the arrangement of the light part 19 and the ease of assembly is improved.

  In the above embodiment, the mobile phone 1 is an example of the portable electronic device of the present invention, the sixth sound emitting hole 27 or the small diameter portion 27a is an example of the sound hole of the present invention, and the second speaker 35 is the present speaker. It is an example of the electroacoustic conversion part of invention.

  The present invention is not limited to the above embodiment, and may be implemented in various aspects.

  The mobile electronic device is not limited to a mobile phone. For example, the mobile electronic device may be a mobile phone, a digital camera, a PDA, or a game machine. The housing is not limited to a straight type. For example, a housing in which two or more housings such as a folding type, a horizontal turn type, and a sliding type are connected so as to be relatively movable may be used.

  The electroacoustic conversion unit is not limited to a speaker that converts an electric signal into sound. In other words, the sound hole is not limited to the sound emission hole. For example, the electroacoustic conversion unit may be a microphone that converts sound into an electric signal, or may have a function of a speaker and a microphone. In other words, the sound hole may be a sound collecting hole, or may be both a sound emitting hole and a sound collecting hole. Further, the speaker and the microphone are not limited to the permanent magnet / coil type, but may be a ribbon type or a capacitor type.

  The size, shape, position, and application of the exterior member may be set as appropriate, and are arranged on the back side of the housing, and support the housing so that the sound holes are floated when the housing is placed on a flat surface. It is not limited to a projecting object that covers or covers a photographing window or a cut hole. For example, the exterior member may have a shape with high design that is attached to the housing simply from the viewpoint of design.

  The sound hole is not limited to a slit shape. For example, it may be rectangular or circular. Further, the sound holes are not limited to those that require a reduction in appearance. For example, a sound hole with a complicated design that is difficult to form by integral molding has a substantial appearance due to the combination of the shape of the sound hole formed in the housing and the shape of the peripheral edge of the exterior member. May be realized.

  The sound hole may be partly covered by inserting an exterior member, like the sixth sound emission hole 27 of the embodiment, or the exterior, like the small-diameter portion 27a of the embodiment. Only a part may be covered without the member being inserted.

  The positional relationship between the electroacoustic conversion unit and the sound hole is not limited to the positional relationship in which the electroacoustic conversion unit faces the sound hole. For example, the speaker may be arranged so that sound from a speaker that does not face the sound hole reaches the sound hole via a sound path formed by a predetermined member.

1 is an external perspective view of a front side of a mobile phone according to an embodiment of the present invention. The external appearance perspective view of the back side of the mobile telephone of FIG. The side view of the mobile telephone of FIG. The top view which expands and shows the exterior member vicinity of the mobile telephone of FIG. The perspective view which removes and shows an exterior member from the rear case of the mobile telephone of FIG. Sectional drawing in the VI-VI line of FIG. Sectional drawing in the VII-VII line of FIG. Sectional drawing in the VIII-VIII line of FIG. The block diagram which shows the structure of the signal processing system of the mobile telephone of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mobile phone (mobile electronic device), 3 ... Housing, 21 ... Exterior member, 21a ... Peripheral part, 27 ... 6th sound emission hole (sound hole), 35 ... 2nd speaker (electroacoustic conversion part).

Claims (8)

A housing in which sound holes are formed;
An electroacoustic conversion unit that is provided in the housing and performs at least one of output and input of sound through the sound hole;
An exterior member provided on the outer surface of the housing and covering only a part of the sound hole with a peripheral edge;
Mobile electronic device having The exterior member constitutes a protrusion that supports the housing so that the sound hole is separated from the plane when the housing is placed on a plane with the sound hole facing downward. The portable electronic device described. The sound hole is a slit,
The portable electronic device according to claim 1, wherein the exterior member covers a portion on one side of the slit in the lateral direction by the peripheral portion extending along the longitudinal direction of the slit. The portable electronic device according to claim 3, wherein the peripheral edge portion of the exterior member is inserted into a portion of the slit in the short side direction. The housing has a step portion in which the slit is wider on the outer side than the inner side of the housing,
The portable electronic device according to claim 4, wherein the peripheral edge portion of the exterior member is abutted against the step portion from the outside to the inside of the housing. The housing is
A facing portion facing the electroacoustic transducer;
A locking portion formed integrally with the facing portion, extending from the facing portion to the inside of the housing, and formed with a claw portion that engages and grips the electroacoustic conversion portion on the distal end side;
Have
The facing portion is formed with an opening facing the claw portion,
The portable electronic device according to claim 1, wherein the exterior member covers the opening. The portable electronic device according to claim 6, wherein the opening is a push hole for integrally forming the claw portion. An imaging unit provided inside the housing;
The housing is formed with a photographing window that exposes the imaging unit,
The portable electronic device according to any one of claims 1 to 7, wherein the exterior member includes a light-transmitting portion, and the light-transmitting portion is attached to the housing so as to cover the imaging window.

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