JP2012253634A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus which clearly emits sounds of a speaker to the exterior while inhibiting the size increase of the electronic apparatus.SOLUTION: A speaker 10L is disposed on the rear side of a circuit board 20L, and sound emission holes 33a for sound emission formed at a housing 30 are positioned on the front side of the circuit board 20L. A sound transmission hole 20a is formed on the circuit board 20L.

Description

  The present invention relates to a layout of a speaker built in an electronic device.

  Conventionally, portable electronic devices with built-in speakers have been used. The speaker is generally disposed so as to face a sound emitting hole for generating sound formed in the housing.

US Patent Application Publication No. 2007/0202956

  However, since an electronic device requires many parts, the electronic device may need to be enlarged in order to avoid interference between these parts and the speaker. In the portable game machine disclosed in Patent Document 1, an operation member is disposed on the front side of the electronic device, and a sound emitting hole is also formed on the front side of the electronic device. Since the base portion of the operation member is disposed in the housing, it may be necessary to increase the size of the electronic device in the left-right direction in order to avoid interference between the base portion and the speaker.

  An object of the present invention is to provide an electronic device that can clearly output the sound of a speaker to the outside while suppressing an increase in size of the electronic device.

  The electronic apparatus according to the present invention includes a circuit board, a speaker disposed on one side of the front side or the back side of the circuit board, and a housing that houses the speaker and the circuit board. The housing is formed with a sound emitting hole located on the other side of the circuit board for outputting the sound of the speaker to the outside, and the circuit board extends from at least a part of the speaker to the sound emitting hole. It has a shape that avoids the passage.

  ADVANTAGE OF THE INVENTION According to this invention, the sound of a speaker can be clearly output outside, suppressing the enlargement of an electronic device.

It is a top view of the portable electronic device concerning one embodiment of the present invention. It is a disassembled perspective view of the said electronic device. It is an enlarged view of the principal part shown in FIG. It is a perspective view which shows the back housing in which the speaker with which the said electronic device is equipped was accommodated. It is sectional drawing in the VV line | wire shown in FIG. FIG. 3 is a front view of the circuit board shown in FIG. 2.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a portable electronic device 1 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the electronic device 1. FIG. 3 is an enlarged view of a main part of FIG. FIG. 4 is a perspective view showing the back housing 34 in which the speakers 10R and 10L included in the electronic apparatus 1 are accommodated. 5 is a cross-sectional view taken along line VV shown in FIG. 6 is a front view of the circuit board 20L shown in FIG.

  In the following description, the direction indicated by X1 in FIG. 2 is the left direction, and the direction indicated by X2 is the right direction. The direction indicated by Z1 is upward, and the direction indicated by Z2 is downward. Furthermore, the direction indicated by Y1 is the front, and the direction indicated by Y2 is the rear.

  The electronic device 1 is a device that functions as, for example, a game device, a moving image playback device, a communication device, or the like. As shown in FIG. 1, the electronic device 1 has a display panel 2 on the front surface thereof. The display panel 2 is composed of, for example, a liquid crystal display panel or an organic EL panel.

  Moreover, the electronic device 1 has a plurality of operation sticks 4R and 4L that can be operated by the user on the front side thereof. In this example, the operation stick 4R and the operation stick 4L are arranged on the right side and the left side of the display panel 2, respectively. The operation sticks 4R and 4L in this example are operation sticks arranged so as to protrude from the front surface of the electronic apparatus 1. That is, the operation sticks 4R and 4L include a shaft portion 4a that protrudes forward from the front surface of the electronic device 1 and a disk-shaped operated portion 4b. The operated portion 4 b is provided at the head of the shaft portion 4 a and is located away from the front surface of the electronic device 1. The operation sticks 4R and 4L can be tilted in the vertical and horizontal directions around the shaft portion 4a, or can be rotated in the circumferential direction with the shaft portion 4a tilted. Further, the operation sticks 4R and 4L may be configured to be slidable in the vertical direction and the horizontal direction. The user can operate these operation sticks 4R and 4L while holding the right side portion and the left side portion of the electronic device 1 by hand. For example, the user can operate the operation sticks 4R and 4L with the thumb placed on the operated portion 4b of the operation sticks 4R and 4L. In the electronic apparatus 1, speakers 10L and 10R, which will be described later, are arranged so as to be close to the operation sticks 4R and 4L. The operated portion 4b is located away from the front surface of the electronic device 1, and can prevent the user's finger from blocking the sounds of the speakers 10R and 10L.

  As shown in FIG. 2, the housing 30 of the electronic device 1 includes a front housing 31 and a back housing 34 that are combined with each other in the front-rear direction. In this example, these two members are fixed to each other by a plurality of screws 39 (see FIG. 5). A case 4c is disposed at a position of the front housing 31 corresponding to the operation sticks 4R and 4L. The case 4c supports the base portion of the shaft portion 4a of the operation sticks 4R and 4L and the base portion of the shaft portion 4a so that the shaft portion 4a can be tilted and slid, and the amount of movement of the shaft portion 4a (inclination direction and angle thereof). And a mechanism for detecting the.

  A plurality of operation buttons 3 and a cross key 5 are further provided on the front surface of the electronic device 1. The plurality of operation buttons 3 are located on the right side of the display panel 2 and on the upper side of the operation stick 4R. The cross key 5 is located on the left side of the display panel 2 and above the operation stick 4L.

  As shown in FIGS. 1 and 2, the electronic device 1 includes circuit boards 20 </ b> R and 20 </ b> L that are accommodated in a housing 30. The circuit board 20L is disposed on the left side of the display panel 2, and is located on the back side of the cross key 5 and the operation stick 4L. On the front surface of the circuit board 20L, switches that are turned on / off in accordance with the operation of the cross key 5 are formed at positions corresponding to the four ends of the cross key 5 (see FIG. 6). Similarly, the circuit board 20R is disposed on the right side of the display panel 2, and is located on the back side of the operation buttons 3 and the operation stick 4R. On the front surface of the circuit board 20R, a switch that is turned on / off in accordance with the operation of the operation button 3 is formed at a position corresponding to the operation button 3.

  As shown in FIGS. 1 and 2, the electronic device 1 has a plurality (two in this example) of speakers 10 </ b> R and 10 </ b> L accommodated in a housing 30. The speaker 10 </ b> R is disposed on the right side of the display panel 2, and the speaker 10 </ b> L is disposed on the left side of the display panel 2.

  As shown in FIGS. 1 and 5, the housing 30 is formed with a sound emission hole 33a for outputting the sound of the speakers 10L and 10R to the outside. In this example, a plurality of (six in this example) sound emitting holes 33a are formed on the left and right sides of the display panel 2, respectively. The sound emission hole 33a is located on the front side of the circuit boards 20L and 20R. On the other hand, as shown in FIGS. 2 and 5, the speakers 10 </ b> L and 10 </ b> R are disposed on the back side of the circuit boards 20 </ b> L and 20 </ b> R (the side opposite to the display panel 2). In other words, the speakers 10L and 10R and the sound emission hole 33a of the housing 30 are located on the opposite sides of the circuit boards 20L and 20R. The circuit boards 20L and 20R have a shape that avoids a passage (passage indicated by an arrow in FIG. 5) through which sound passes from a part of the speakers 10L and 10R to the sound emission hole 33a. In this example, as shown in FIGS. 3 and 5, the circuit boards 20 </ b> L and 20 </ b> R are formed with holes (hereinafter referred to as “sound passage holes”) 20 a located on the passages through which sound passes. The sound hole 20a penetrates the circuit boards 20L and 20R and faces the part of the speakers 10L and 10R. With this structure, the sound of the speakers 10L and 10R goes out through the sound hole 20a to the outside through the sound hole 33a. As a result, it is possible to clearly output the sound of the speaker 10L to the outside while suppressing an increase in the size of the electronic device 1 in the horizontal direction or the vertical direction.

  The sound hole 20a in this example is smaller than the speakers 10L and 10R (see FIG. 2). Therefore, the degree of freedom of layout of circuit patterns formed on the circuit boards 20L and 20R can be increased, and the strength of the circuit boards 20L and 20R can be easily secured. As shown in FIGS. 4 and 5, the speaker 10 </ b> L of this example has a shield plate 13 that covers the speaker body 11 on the front surface thereof. A plurality (three in this example) of openings 13a are formed in part of the shield plate 13 (in this example, the outer portion in the left-right direction). The sound of the speaker body 11 comes out of the shield plate 13 mainly through the opening 13a. The sound hole 20a of the circuit board 20L is positioned so as to face these openings 13a. In this example, the plurality of openings 13a are formed side by side in the vertical direction, and the sound passage hole 20a is an elongated hole in the vertical direction.

  The shield plate 13 is formed of a metal plate, and suppresses electromagnetic interference between the speaker body 11 and other electronic components included in the electronic device 1. The speaker 10L has a case 12 that houses the speaker body 11 and opens toward the circuit board 20L. The speaker body 11 is disposed in the case 12 in a posture in which sound is emitted toward the circuit board 20L. The shield plate 13 is provided on the front surface of the case 12 so as to close the case 12. The speaker 10R has the same structure and arrangement as the speaker 10L.

  As shown in FIGS. 1 and 5, the sound emitting hole 33a of the housing 30 is formed at a position facing the speakers 10L and 10R in the thickness direction of the circuit boards 20L and 20R (in this example, the front-rear direction). . That is, the position of the sound emitting hole 33a of the housing 30 overlaps with the speakers 10L and 10R in the thickness direction of the circuit boards 20L and 20R. Therefore, the sound of the speakers 10L and 10R can be clearly output to the outside through the sound emission hole 33a. In particular, in this example, the three sound emission holes 33a, the sound transmission holes 20a, and the openings 13a of the speakers 10L and 10R overlap in the front-rear direction.

  The sound emission hole 33a of the housing 30 is located outward in the left-right direction with respect to the operation sticks 4R, 4L, the operation button 3, and the cross key 5. With such an arrangement of the sound emission holes 33a, the sound emission holes 33a are arranged inside the operation members 4R, 4L, 3, and 5 as compared with the structure in which the sound emission holes 33a are formed inside the operation members 4R, 4L, 3, and 5. The display panel 2 can be increased in size.

  The speakers 10L and 10R are arranged so that some of them overlap with parts other than the circuit boards 20L and 20R in the front-rear direction. In this example, as shown in FIG. 1, a part of the speakers 10 </ b> L and 10 </ b> R (the inner part in the left-right direction) overlaps the case 4 c of the operation sticks 4 </ b> L and 4 </ b> R. Thereby, the case 4c and the speakers 10L and 10R can be arranged in a narrow space in the housing 30.

  Further, as shown in FIG. 1, the speakers 10 </ b> L and 10 </ b> R are rectangular in plan view, and are arranged so that the longitudinal direction thereof is along the left-right direction of the electronic device 1. Moreover, the electronic apparatus 1 of this example has a shape elongated in the left-right direction. That is, the longitudinal direction of the speakers 10L and 10R and the longitudinal direction of the electronic device 1 are aligned. According to such arrangement of the speakers 10L and 10R, it is easy to suppress the vertical width of the electronic device 1.

  As shown in FIGS. 1 and 5, the front housing 31 of this example includes a front housing main body 32 and a front panel 33 that is attached to the front surface of the front housing main body 32 and forms the front surface of the electronic device 1. Yes. The front panel 33 is formed of a light transmissive material (for example, glass or resin), and the display panel 2 is disposed between the front panel 33 and the front housing body 32. The sound emitting hole 33 a described above is formed in the front panel 33. As shown in FIG. 5, a dustproof sheet (for example, a mesh member) 36 is attached to the inner surface of the front panel 33 to prevent external dust and dirt from entering the electronic device 1 through the sound emission holes 33 a. ing.

  As shown in FIGS. 4 and 5, the speaker 10 </ b> L is disposed in the back housing 34. In this example, the back housing 34 is formed with an accommodation wall portion 34a surrounding the outer periphery of the speaker 10L. That is, a storage room for storing the speaker 10L is defined by the storage wall portion 34a. In this example, the storage wall 34a surrounds the entire circumference of the speaker 10L. Due to the presence of the housing wall 34a, the sound of the speaker 10L is difficult to leak into other spaces in the back housing 34. Similarly to the speaker 10L, the speaker 10R is also disposed in the back housing 34 and is accommodated in the accommodation chamber defined by the accommodation wall portion 34a.

  As shown in FIG. 5, a plurality of ribs 34 b that stand toward the speaker 10 </ b> L are formed inside the accommodation wall 34 a. The speaker 10L is pressed against the circuit board 20L by the rib 34b. Thereby, rattling of the speaker 10L in the housing 30 can be suppressed without requiring a mounting member such as a screw, and the sound of the speaker 10L can be concentrated on the sound passage hole 20a of the circuit board 20L. it can. A rib 34b that supports the speaker 10R is also formed inside the housing wall 34a that houses the speaker 10R.

  In this example, as shown in FIGS. 3 and 5, a sheet-like cushion 21 is attached to the circuit board 20L. The cushion 21 is formed of a material having elasticity in the thickness direction of the circuit board 20L. A hole 21a having a shape corresponding to the speaker 10L is formed in the cushion 21. The outer peripheral portion of the speaker 10L is pressed against the inner peripheral portion of the hole 21a. The cushion 21 can more effectively suppress a gap between the speaker 10L and the circuit board 20L and the rattling of the speaker 10L. The sound hole 20a of the circuit board 20L described above is formed inside the cushion 21.

  As shown in FIG. 4, a leaf spring-like terminal 14 is formed at the end of the speaker 10 </ b> L, specifically, at the inner end in the left-right direction. On the other hand, electrode pads 20b are formed on the circuit boards 20L and 20R as shown in FIG. The terminal 14 is pressed against the electrode pad 20b. The cushion 21 is formed with a hole 21b surrounding the electrode pad 20b. Since the hole 21a and the hole 21b are formed independently, that is, since the hole 21a and the hole 21b are not connected, the bonding surface of the cushion 21 can be increased. The speaker 10R is also provided with a terminal 14 like the speaker 10L. In addition, a cushion 21 is attached to the circuit board 20R as well as the circuit board 20L (see FIG. 2).

  Inside the front housing 31, a wall portion that defines a passage through which the sound of the speakers 10L and 10R passes is formed. In this example, as shown in FIGS. 2, 3, and 5, sound passing tubes 35 </ b> L and 35 </ b> R are formed in the front housing 31 as wall portions that define a passage through which sound passes. As described above, the sound emitting hole 33a of the housing 30 is formed to face the sound holes 20a of the speakers 10L and 10R and the circuit boards 20L and 20R in the thickness direction of the circuit boards 20L and 20R. The sound passing tubes 35L and 35R are located between the sound passing hole 20a and the sound emitting hole 33a and surround the passage. The sound hole 20a and the sound hole 33a are located inside the sound tubes 35L and 35R when the electronic apparatus 1 is viewed from the front. Thereby, it can suppress that the sound of the speakers 10L and 10R leaks other than the sound emission hole 33a.

  As described above, the sound emitting hole 33 a is formed in the front panel 33. The circuit boards 20L and 20R are arranged so as to face the front panel 33, and sound-transmitting tubes 35L and 35R are formed between them. The sound-transmitting tubes 35L and 35R have a cylindrical shape formed so that the direction of the axis line is along the thickness direction of the circuit boards 20L and 20R, and the opening ends thereof are closed by the circuit boards 20R and 20L and the front panel 33. It has been. In this example, the sound-transmitting cylinder 35L is formed integrally with the front housing body 32 of the front housing 31, as shown in FIG. The front panel 33 is attached to the front surface of the front housing body 32 to close the open ends of the sound-transmitting tubes 35L and 35R.

  As shown in FIG. 5, the sound-transmitting cylinder 35L extends from the front panel 33 side toward the circuit board 20L. Then, the end 35a of the sound passing tube 35L is pressed against the circuit board 20L. Thereby, the sound of the speaker 10L can be concentrated in the sound emission hole 33a.

  In this example, a sheet-like cushion 22 is affixed to the circuit board 20L as shown in FIGS. The cushion 22 has a shape surrounding the sound hole 20a of the circuit board 20L. That is, a hole 22a is formed in the cushion 22 at a position corresponding to the sound passage hole 20a. The cushion 22 is formed of a material having elasticity in the thickness direction of the circuit board 20L. An end portion 35a of the sound passage 35L is pressed against the cushion 22. Thereby, it can suppress that a clearance gap produces between the circuit board 20L and the sound passing cylinder 35L. In addition, the cushion 22 is affixed also to the circuit board 20R similarly to the circuit board 20L. The end portion of the sound passing cylinder 35 </ b> R is pressed against the cushion 22.

  The front housing body 32 is formed with ribs standing toward the back housing 34 and the above-described sound-transmitting tubes 35L and 35R. On the other hand, the back housing 34 is formed with a plurality of ribs 34c standing toward the front housing 31 and the above-described housing wall 34a (see FIG. 3). The front housing main body 32 and the back housing 34 are fixed to each other by a screw 39, and the circuit boards 20L and 20R include the ribs and sound-transmitting tubes 35L and 35R of the front housing main body 32, the ribs 34c of the back housing 34 and the receiving wall 34a It is sandwiched between. As a result, the end portions 35a of the sound-transmitting tubes 35L and 35R and the end portions of the housing wall portions 34a are pressed against the circuit boards 20L and 20R.

  The sound-transmitting tubes 35L and 35R have a smaller width than the speakers 10L and 10R, and are disposed between other parts accommodated in the housing 30 and the outer wall of the housing 30. In this example, as shown in FIGS. 2 and 3, the sound-transmitting tubes 35L and 35R have a smaller width in the left-right direction than the speakers 10L and 10R, and the case 4c of the operation sticks 4L and 4R and the front housing body 32 It is located between the side wall part 32a. Particularly in this example, the sound passing tubes 35L and 35R are formed along the side wall portion 32a. On the other hand, as described above, the speakers 10L and 10R are arranged so as to overlap the case 4c in the thickness direction of the circuit boards 20L and 20R. With such a layout, the sounds of the speakers 10L and 10R can be output to the outside of the housing 30 through a narrow space formed outside the case 4c in the left-right direction. In this example, as shown in FIG. 2, the right sound-transmitting cylinder 35 </ b> R and the left sound-transmitting cylinder 35 </ b> L have shapes different from each other according to the components arranged around them.

  As shown in FIG. 5, a reinforcing wall portion 35c is formed on the inner side of the sound passing tube 35L. The reinforcing wall portion 35 c is a portion formed integrally with the front housing body 32. The reinforcing wall portion 35 c is located on the back side of the portion between the plurality of sound emitting holes 33 a formed in the front panel 33. The reinforcing wall part 35c supports the part from the back side when the part in which the sound emitting hole 33a is formed is pushed from the outside.

  As described above, in the electronic device 1, the speakers 10 </ b> L and 10 </ b> R are arranged on the back side of the circuit boards 20 </ b> L and 20 </ b> R, and the sound emission holes 33 a for emitting sound formed in the housing 30 Is located. The circuit boards 20L and 20R have a shape that avoids a passage from a part of the speakers 10L and 10R to the sound emission hole 33a. According to this structure, it is possible to clearly output the sounds of the speakers 10L and 10R to the outside while suppressing the increase in size of the electronic device 1, that is, while suppressing the width in the vertical direction of the electronic device 1. It becomes like this.

  Further, the circuit boards 20L and 20R are formed with a sound passage hole 20a located on the passage leading to the sound emission hole 33a. According to this structure, it is easier to ensure the strength of the circuit boards 20L and 20R compared to a structure in which notches are formed in the circuit boards 20L and 20R to avoid the passage.

  Further, the sound emitting hole 33a of the housing 30 overlaps the speakers 10L and 10R in the thickness direction of the circuit boards 20L and 20R. According to this layout, the sound of the speakers 10L and 10R can be output to the outside more clearly.

  The sound holes 20a of the circuit boards 20L and 20R are smaller than the speakers 10L and 10R. According to this structure, it becomes easy to form a circuit pattern on the circuit boards 20L and 20R.

  Further, inside the housing 30, sound passages 35L and 35R for defining a passage leading to the sound emission hole 33a are formed. According to this structure, the sound of the speakers 10L and 10R can be output to the outside more clearly.

  The sound emitting hole 33a of the housing 30 faces the sound passing hole 20a of the circuit boards 20L and 20R in the thickness direction of the circuit boards 20L and 20L, and the sound passing tubes 35L and 35R are connected to the sound emitting hole 33a of the housing 30 and the circuit board. It is located between the sound holes 20a of the 20L and 20R, and has a cylindrical shape that surrounds a passage leading to the sound holes 33a. According to this structure, the sound of the speakers 10L and 10R can be output to the outside more clearly.

  The end portions 35a of the sound pipes 35L and 35R are pressed against the circuit boards 20L and 20R. According to this structure, it is possible to prevent sound from leaking into the housing 30.

  The circuit boards 20L and 20R are provided with cushions 22 surrounding the sound holes 20a of the circuit boards 20L and 20R, and the end portions 35a of the sound pipes 35L and 35R are pressed against the cushions 22. According to this structure, it can suppress that a clearance gap produces between the edge part 35a of the sound pipes 35L and 35R, and the circuit boards 20L and 20R. As a result, the sound of the speakers 10L and 10R can be more effectively prevented from leaking into the housing 30.

  Further, the width in the left-right direction of the sound passing tubes 35L, 35R is smaller than the width in the left-right direction of the speakers 10L, 10R. According to this structure, the sound of the speakers 10L and 10R can be directed to the sound emission hole 33a while effectively using a narrow space.

  Further, a cushion 21 having a shape surrounding the sound hole 20a of the circuit boards 20L and 20R is attached to the circuit boards 20L and 20R, and the speakers 10L and 10R are pressed against the cushion 21. Thereby, it can suppress that a clearance gap produces between circuit boards 20L and 20R and speakers 10L and 10R. As a result, the sounds of the speakers 10L and 10R can be prevented from leaking into the housing 30.

  In addition, this invention is not restricted to the electronic device 1 demonstrated above, A various change is possible.

  For example, in the above description, the electronic apparatus 1 has the two circuit boards 20L and 20R, but the number of circuit boards may be one.

  Further, the speakers 10L and 10R may be arranged on the front side of the circuit boards 20L and 20R, and sound emission holes for making sound may be formed in the back housing 34.

  In the above description, the sound passing tubes 35R and 35L are formed integrally with the front housing body 32. However, the sound pipes 35R and 35L may be separate members from the housing 30.

  Further, the positions of the speakers 10 </ b> L and 10 </ b> R may be shifted from the sound emission holes 33 a formed in the housing 30.

  In the above description, the sound holes 20a are formed in the circuit boards 20L and 20R. However, notches may be formed in the circuit boards 20L and 20R so as to avoid the positions of the openings 13a of the speakers 10L and 10R.

  In the above description, the sound pipes 35L and 35R are formed as wall portions that define the passages through which the sounds of the speakers 10L and 10R pass. However, the wall part that defines the passage through which the sound passes may not necessarily be formed. Moreover, the wall part which prescribes | regulates the channel | path through which the sound of speakers 10L and 10R passes does not necessarily need to be cylindrical. For example, a passage through which sound passes may be defined by a plurality of wall portions independent of each other.

  DESCRIPTION OF SYMBOLS 1 Portable electronic device, 2 Display panel, 4L, 4R Operation stick, 10L, 10R Speaker, 11 Speaker main body, 20L, 20R Circuit board, 20a Sound through hole, 21 Cushion, 22 Cushion, 30 Housing, 31 Front housing, 32 Front housing main body, 33 front panel, 33a sound emitting hole, 34 back housing, 34a accommodating wall, 35L, 35R sound tube.

Claims (10)

A circuit board, a speaker disposed on one side of the front side or the back side of the circuit board, and a housing that houses the speaker and the circuit board,
The housing is provided with a sound emitting hole located on the other side of the circuit board for outputting the sound of the speaker to the outside.
The circuit board has a shape that avoids a passage from at least a part of the speaker to the sound emission hole,
An electronic device characterized by that. The electronic device according to claim 1,
In the circuit board, a sound passage hole which is a hole located on the passage is formed.
An electronic device characterized by that. The electronic device according to claim 2,
The sound hole of the circuit board is smaller than the speaker,
An electronic device characterized by that. The electronic device according to claim 1,
The sound emitting hole of the housing is positioned so as to overlap the speaker in the thickness direction of the circuit board.
An electronic device characterized by that. The electronic device according to claim 1,
A wall portion that defines the passage is disposed inside the housing.
An electronic device characterized by that. The electronic device according to claim 5,
The circuit board is formed with a sound hole which is a hole located on the passage,
The sound emission hole of the housing is formed to face the sound passage hole of the circuit board in the thickness direction of the circuit board,
The wall portion is located between the sound emitting hole of the housing and the sound passage hole of the circuit board, and has a cylindrical shape surrounding the passage.
An electronic device characterized by that. The electronic device according to claim 6,
The end of the cylindrical wall is pressed against the circuit board,
An electronic device characterized by that. The electronic device according to claim 7,
A cushion surrounding the sound hole of the circuit board is attached to the circuit board,
The end of the cylindrical wall is pressed against the cushion,
An electronic device characterized by that. The electronic device according to any one of claims 6 to 8,
The width of the cylindrical wall is smaller than the width of the speaker,
An electronic device characterized by that. The electronic device according to claim 1,
A cushion having a shape surrounding the sound hole of the circuit board is attached to the circuit board,
The speaker is pressed against the cushion;
An electronic device characterized by that.

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