JP5830692B2 - Mobile device - Google Patents

Description

  The present invention relates to a mobile terminal in which an audio output unit is housed in a housing, a communication hole is provided in a front cover that covers a display device, and audio output from the audio output unit is transmitted to the outside through the communication hole.

  The portable terminal is provided with a display device on the surface side of the housing, the display device is covered with a front cover, a receiver sound hole for reception is provided above the front cover, and an audio output unit that faces the receiver sound hole Is provided inside the housing. The sound output from the sound output unit is transmitted to the outside of the housing through the receiver sound hole (Patent Document 1).

JP 2010-103585 (paragraph 0013, paragraph 0015, FIG. 1)

  However, when the portable terminal of Patent Document 1 is placed on the placement surface with the surface of the portable terminal facing downward, it is conceivable that the receiver sound hole is arranged to face the placement surface. In this case, the receiver sound hole is blocked by the mounting surface, and it is difficult for the sound output from the sound output unit to be transmitted to the outside of the housing through the receiver sound hole, and it is difficult to hear the sound outside. .

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a portable terminal capable of transmitting sound to the outside even when the portable terminal is placed on a placement surface with the surface facing downward. Is to provide.

  The mobile terminal of the present invention includes a housing, a circuit board accommodated in the housing, a display device that is disposed in parallel to the circuit board inside the housing and is exposed to the outside of the housing. A communication hole that is provided in a front cover of the display device and communicates with the inside and outside of the housing; an audio output unit that is connected to the circuit board and outputs sound to the outside of the housing through the communication hole; A sound hole member provided in the communication hole and projecting from the surface of the front cover and having a first sound hole and a second sound hole, the first sound hole along the thickness direction of the front cover The second sound hole is provided along a direction intersecting with the thickness direction of the front cover, and a part of the opening surface is disposed inside the housing from the surface of the front cover. Has been.

A communication hole was provided in the front cover of the display device, and a sound hole member was provided in the communication hole so as to protrude from the surface of the front cover. In addition, the second sound hole is provided in the sound hole member along the direction intersecting the thickness direction of the front cover, and a part of the opening surface of the second sound hole is arranged inside the housing from the surface of the front cover. did.
Therefore, the remaining part of the opening surface of the second sound hole can be arranged outside the housing from the surface of the front cover.

  Thereby, even when the portable terminal is placed on the placement surface with the surface of the front cover facing down, it is possible to ensure that the rest of the opening surface of the second sound hole is not blocked by the placement surface. By keeping the remaining part of the opening surface open, the sound output from the sound output unit can be transmitted to the outside through the remaining part. That is, the sound can be heard outside and the sound output performance can be ensured.

Furthermore, by disposing a part of the opening surface of the second sound hole inside the housing from the surface of the front cover, a part of the opening surface can be hidden by the front cover. Thereby, the exposure to the exterior of an opening surface can be restrained little and the design property of a portable terminal can be ensured.
That is, according to the mobile terminal of the present invention, when the mobile terminal is placed on the mounting surface with the surface facing downward, the voice can be transmitted to the outside, and the design of the mobile terminal can be ensured.

  The portable terminal of the present invention has a flange provided on the outside of the sound hole member, and a holder for holding the audio output unit, and the flange is between the back surface of the front cover and the holder. It is pinched.

  A flange portion was provided outside the sound hole member, and the flange portion was sandwiched between the front cover and the holder. Therefore, when a pressing force is applied to the sound hole member from the outside, the flange portion can be prevented from separating from the front cover. Thereby, a sound hole member can be reliably hold | maintained to a housing | casing with the simple structure which clamps a collar part between a front cover and a holder.

  The portable terminal of the present invention has a frame-shaped waterproof member interposed between the back surface of the front cover and the holder in the peripheral portion of the sound hole member, and the collar portion is disposed inside the waterproof member. The

  A frame-shaped waterproof member is interposed between the front cover and the holder, and a collar portion is disposed inside the waterproof member. Thereby, the area | region outside a waterproof member can be partitioned from a communicating hole inside a housing | casing, and the waterproofness of the area | region outside a waterproof member can be ensured reliably.

  According to the portable terminal of the present invention, the second sound hole is provided in the sound hole member that is protruded from the surface of the front cover, and the remaining portion of the opening surface of the second sound hole is placed on the housing more than the front cover surface. Arranged outside. As a result, when the portable terminal is placed on the placement surface with the front cover surface facing downward, the remaining portion of the opening surface is kept open, and the sound output from the sound output unit is externally transmitted through the remaining portion. Can tell.

The perspective view which shows the portable terminal which concerns on this invention The disassembled perspective view which shows the portable terminal of FIG. Part I enlarged view of FIG. II-II sectional view of FIG. Sectional view taken along line III-III in FIG. Part IV enlarged view of FIG. Sectional drawing which shows the state which decomposed | disassembled the front cover and the sound hole member from the portable terminal of FIG.

Hereinafter, a mobile terminal according to an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the mobile terminal 10 includes a housing 11, a circuit board 12 accommodated in the housing 11, an audio output unit 13 provided on the circuit board 12, and an audio output unit 13. The holder 15 to hold | maintain and the display apparatus 18 arrange | positioned in parallel with respect to the circuit board 12 are provided.
Further, as shown in FIG. 3, the mobile terminal 10 includes a front cover 21 that covers the display device 18, a communication hole 23 provided in the front cover 21, a sound hole member 25 provided in the communication hole 23, A frame-shaped waterproof member 28 interposed between the cover 21 and the holder 15 is provided.

As shown in FIG. 2, the housing 11 is formed in a substantially rectangular shape, and a housing opening 11 </ b> A on the front surface side is opened.
As shown in FIG. 4, the circuit board 12 is accommodated in the interior 29 of the housing 11 from the housing opening 11 </ b> A (see FIG. 2) side of the housing 11, and substantially parallel to the bottom 11 </ b> B of the housing 11. Has been placed. An audio output unit 13 is connected to the circuit board 12. The audio output unit 13 is a member that also serves as a receiver and a speaker, and has a function of outputting audio to the outside 31 of the housing 11 through the communication hole 23.

As shown in FIGS. 4 and 5, the audio output unit 13 is held by the holder 15 from the opening side of the housing 11. The holder 15 is a member for creating an air chamber of the audio output unit 13. The holder 15 includes an audio guide path 16 that communicates with the output portion 14 of the audio output unit 13 and the communication hole 23, and a positioning protrusion 17 that protrudes from the surface 15 A of the holder 15 toward the front cover 21.
The voice guide path 16 is a guide path that guides the voice output from the output portion 14 of the voice output unit 13 to the communication hole 23. The positioning protrusion 17 is provided outside the voice guide path 16.

A display device 18 is arranged in the interior 29 of the housing 11 above the holder 15 and parallel to the circuit board 12. The display device 18 has a display surface 19 that is exposed to the outside of the housing 11 and can display an image. The display surface 19 is covered with a front cover 21.
Returning to FIG. 2, the front cover 21 is a plate member capable of displaying an image displayed on the display surface 19, and has the same shape as the outer frame of the housing 11 so as to cover the housing opening 11 </ b> A of the housing 11. It is formed in a substantially rectangular shape. A communication hole 23 for reception is provided in the upper end portion 21 </ b> A of the front cover 21, and a transmission hole 33 for transmission is provided in the lower end portion 21 </ b> B of the front cover 21.

Returning to FIG. 4 and FIG. 5, the communication hole 23 is a receiver sound hole that is provided in the front cover 21 of the display device 18 to communicate the inside 29 of the housing 11 and the outside 31 of the housing 11. Specifically, the communication hole 23 communicates with the sound output unit 13 (output part 14) through the sound guide path 16 of the holder 15.
An upper surface chamfer 23A is formed on the front surface 21C side of the front cover 21, and a lower surface chamfer 23B is formed on the back surface 21D side of the front cover 21. A sound hole member 25 is provided in the communication hole 23.

  As shown in FIGS. 4 and 6, the sound hole member 25 includes a cylindrical portion 34 formed in a cylindrical shape by a pair of short wall portions 35 and a pair of long wall portions 36, and an upper portion that covers an upper end portion 34 </ b> A of the cylindrical portion 34. 37, a flange portion 38 projecting outward from each short wall portion 35, and a protrusion 39 projecting downward from each long wall portion 36. In the sound hole member 25, the upper end portion 34 </ b> A and the upper portion 37 of the cylindrical portion 34 protrude outward from the surface 21 </ b> C of the front cover 21.

  Furthermore, the sound hole member 25 has a plurality of first sound holes 41 formed in the upper portion 37 and a plurality of second sound holes 42 formed in the upper end portion 36 </ b> A of each long wall portion 36. The first sound hole 41 is provided in the upper portion 37 along the thickness direction (arrow A direction) of the front cover 21. The first sound hole 41 is disposed on the outer side of the housing 11 with respect to the surface 21 </ b> C of the front cover 21. The first sound hole 41 communicates the inside 29 of the housing 11 and the outside 31 of the housing 11.

  The second sound hole 42 is provided in the upper end portion 36 </ b> A of the long wall portion 36 along a direction (arrow B direction) intersecting the thickness direction of the front cover 21. In the second sound hole 42, a part (opening lower part) 43 </ b> A of the opening surface 43 of the second sound hole 42 is disposed inside the housing 11 with respect to the surface 21 </ b> C of the front cover 21. Here, the center of the second sound hole 42 is preferably along the surface 21 </ b> C of the front cover 21.

By setting the center of the opening surface 43 along the surface 21C of the front cover 21, the lower opening portion 43A of the opening surface 43 and the remaining portion (opening upper portion) 43B of the opening surface 43 can be divided in half.
Therefore, the opening lower portion 43 </ b> A having the shape of the lower half of the opening surface 43 can be hidden by the front cover 21. Thereby, the exposure to the exterior of the opening surface 43 can be suppressed little, and the design property of the portable terminal 10 can be ensured.

Further, by disposing only the lower opening portion 43A of the second sound hole 42 on the inner side of the housing 11 than the surface 21C of the front cover 21, the upper opening portion 43B of the opening surface 43 is placed on the outer side of the front surface 21C of the front cover 21. Has been placed.
In addition, the communication hole 23 has an upper surface chamfer 23A on the surface 21C side of the front cover 21 (see FIG. 6). Therefore, an area larger than the opening upper portion 43 </ b> B in the opening surface 43 can be exposed to the outside of the front cover 21.

Accordingly, as shown in FIG. 5, even when the portable terminal 10 is placed on the placement surface 46 with the surface 21C of the front cover 21 facing downward, the opening upper portion 43B (see FIG. 6) of the opening surface 43 or the opening It is possible to ensure that the portion of the surface 43 that is opened by the upper surface catching portion 23 </ b> A is not blocked by the mounting surface 46.
By maintaining the opening upper portion 43B and the like in an open state, the sound output from the sound output unit 13 can be transmitted to the outside through the opening upper portion 43B as indicated by an arrow C (see also FIG. 6). That is, the sound can be heard outside and the sound output performance can be ensured.

Returning to FIG. 4, the pair of flanges 38 provided on the outside of the sound hole member 25 is bonded to the back surface 21 </ b> D of the front cover 21 with a double-sided tape 47. In this state, the pair of flange portions 38 are sandwiched between the rear surface 21 </ b> D of the front cover 21 and the positioning protrusions 17 of the holder 15.
Therefore, when the pressing force F is applied to the sound hole member 25 from the outside 31 of the mobile terminal 10, the pair of flange portions 38 can be prevented from separating from the front cover 21. Thereby, the sound hole member 25 can be reliably held in the housing 11 with a simple configuration in which the pair of flange portions 38 are sandwiched between the front cover 21 and the holder 15.

Further, a protrusion 39 protrudes downward from the lower end portion 36B of each long wall portion 36. Each protrusion 39 is a part that presses the waterproof member 28 (specifically, the connecting portion 51 (see FIGS. 3 and 6)) from above.
A frame-shaped waterproof member 28 is interposed between the front cover 21 and the holder 15.

  As shown in FIG. 7, the waterproof member 28 is formed in a substantially rectangular frame that can be placed on the surface 15 </ b> A of the holder 15, an opening 52 is formed inside the frame, and the center of the opening 52 is They are connected by a connecting portion 51 (see also FIG. 3). The waterproof member 28 is reinforced by connecting the center of the opening 52 with the connecting portion 51. The opening 52 communicates with the communication hole 23 of the front cover 21 and communicates with the voice guide path 16 of the holder 15.

Returning to FIG. 4, the waterproof member 28 is interposed between the front cover 21 (back surface 21 </ b> D) and the holder 15 (front surface 15 </ b> A) outside the peripheral portion 25 </ b> A of the sound hole member 25. The connecting portion 51 (see also FIG. 3) of the waterproof member 28 is pressed by each protrusion 39 of the sound hole member 25. Therefore, the waterproof member 28 is reliably interposed between the front cover 21 (back surface 21D) and the holder 15 (front surface 15A).
Further, for example, by forming the back surface of the connecting portion 51 (inside of the housing 11) so as to be able to contact the holder 15, each protrusion 39 of the sound hole member 25 is received by the holder 15 through the connecting portion 51, It is possible to better support the external force acting on the sound hole member 25 together with the flange portion 38.

  In this state, the pair of flange portions 38 are disposed inside the waterproof member 28, and the pair of positioning protrusions 17 of the holder 15 are disposed. Therefore, the waterproof member 28 can be positioned outside the pair of flange portions 38 by the pair of positioning protrusions 17. Thereby, the area | region of the outer side of the waterproof member 28 in the inside of the housing | casing 11 is partitioned off from the communicating hole 23, and the waterproofness of the area | region of the outer side of the waterproof member 28 can be ensured reliably.

Note that the mobile terminal according to the present invention is not limited to the above-described embodiment, and can be appropriately changed and improved.
For example, in the above-described embodiment, the example in which the mobile terminal 10 is applied to the tablet type has been described. However, the present invention is not limited to this, and the mobile terminal 10 can also be applied to a folding type or slide type mobile terminal.

  In addition, the portable terminal, the case, the circuit board, the sound output unit, the holder, the display device, the front cover, the communication hole, the sound hole member, the waterproof member, the flange, the first sound hole, and the second sound used in the embodiment. The shape and configuration of the holes and the like are not limited to those illustrated, and can be changed as appropriate.

  INDUSTRIAL APPLICABILITY The present invention is suitable for application to a portable terminal in which a communication hole is provided in a front cover that covers a display device and the sound output from the audio output unit is transmitted from the communication hole to the outside.

DESCRIPTION OF SYMBOLS 10 Portable terminal 11 Housing | casing 12 Circuit board 13 Audio | voice output part 15 Holder 18 Display apparatus 21 Front cover 21C Front cover surface 21D Back surface of the front cover 23 Communication hole 25 Sound hole member 25A Sound hole member peripheral part 28 Waterproof member 29 Housing Inside the body 38 buttocks 41 first sound hole 42 second sound hole 43 opening surface 43A part of the opening surface

Claims (3)

A housing,
A circuit board housed in the housing;
A display device disposed in parallel to the circuit board in the housing and exposed to the outside of the housing;
A communication hole provided in a front cover of the display device and communicating between the inside and the outside of the housing;
An audio output unit connected to the circuit board and outputting audio to the outside of the housing through the communication hole;
A sound hole member provided in the communication hole, protruding from the surface of the front cover and having a first sound hole and a second sound hole,
The first sound hole is provided along the thickness direction of the front cover,
The second sound hole is provided along a direction intersecting the thickness direction of the front cover, and a part of the opening surface is disposed inside the housing from the surface of the front cover. Mobile device. The mobile terminal according to claim 1,
A flange provided outside the sound hole member;
A holder for holding the audio output unit,
The portable terminal by which the said collar part is clamped between the back surface of the said front cover, and the said holder. The mobile terminal according to claim 2,
A frame-shaped waterproofing member interposed between the rear surface of the front cover and the holder in the periphery of the sound hole member;
The portable terminal by which the said collar part is arrange | positioned inside the said waterproof member.

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