Speaker unit and language learning support device

Abstract

To provide a speaker device capable of obtaining excellent sound pressure and sound quality.SOLUTION: In an electronic apparatus 10, speakers 19L, 19R are arranged inside a housing of a box speaker 15 so that respective diaphragms are in the same direction within the same plane. Front side spaces 20L, 20R of the respective speakers are separated from rear side spaces (resonance spaces) 25L, 25R, the front side spaces 20L, 20R are separated by a speaker insulation wall 21 to have the same capacity, and the rear side spaces 25L, 25R are divided to have the same capacity. Sound emission slits 15L, 15R for emitting sound waves SL, SR using the respective front side spaces 20L, 20R as sound guide paths are arranged on the wall surfaces positioned in a direction vertical to a normal direction of the diaphragms of the wall surfaces constituting the front side spaces 20L, 20R of the speakers 19L, 19R. A communication hole 21h is arranged in a part of the speaker insulation wall 21 for dividing the rear side spaces 25L, 25R of the speakers 19L, 19R, and the respective rear side spaces 25L, 25R are made the partially shared resonance spaces.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to Speaker unit and language learning support device .

Background Art

[0002] Conventionally, a speaker device has been considered in which a plurality of speakers are arranged side by side on one side surface of a speaker housing such that the normal lines of their respective diaphragms are parallel to each other, and the resonance spaces formed on the back side of each diaphragm of the speaker housing are isolated by providing partitions for each speaker (see, for example, Patent Document 1).

[0003] Also, a speaker device has been considered in which a plurality of speakers are arranged side by side on a sound pressure partition provided inside a speaker housing, a space sealed on the back side of each diaphragm is used as a resonance space that communicates between the speakers, and a sound guiding path from the front side of each diaphragm to a sound emission port on the side surface of the housing is also configured as a sound guiding space that communicates between the speakers (see, for example, Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide Speaker unit and language learning support device capable of obtaining good sound pressure and sound quality.

Means for Solving the Problems

[0006] The speaker unit according to the present invention includes a pair of speakers arranged adjacent to each other in a first direction such that the normal lines of the vibration surfaces in the diaphragm are parallel to each other and the arrangement positions of the vibration surfaces in the direction along the normal line are equal to each other, and a housing that houses the pair of speakers. In the housing, a pair of individual spaces for individually housing each of the pair of speakers are provided by partitioning the internal space of the housing with a predetermined partition wall. In each of the pair of individual spaces, a sound guide path that guides the traveling direction of the sound wave output from the speaker housed in the individual space to a second direction that intersects the first direction and intersects the normal line, and a sound emission port for emitting the sound wave whose traveling direction is guided to the second direction to the outside are provided. In the partition wall, a communication hole for communicating between the pair of individual spaces is provided. Each of the pair of individual spaces is partitioned by a speaker housed in the individual space, so that a front space located in front of the speaker in the direction along the normal line and a rear space located behind the speaker in the direction along the normal line are provided, The communication hole is arranged in the internal space such that it is on the opposite side to the side where the sound emission port is provided in both the direction along the second direction and the direction along the normal line. and are provided so as to communicate the rear spaces among the front space and the rear spaces, This is the feature. Further, the language learning support device according to the present invention includes a speaker unit provided adjacent to a display unit. The speaker unit includes a pair of speakers arranged adjacent to each other in a first direction such that the normal lines of the vibration surfaces in the diaphragm are parallel to each other and the arrangement positions of the vibration surfaces in the direction along the normal line are equal to each other, and a housing that houses the pair of speakers. In the housing, a pair of individual spaces for individually housing each of the pair of speakers are provided by partitioning the internal space of the housing with a predetermined partition wall. In each of the pair of individual spaces, a sound guide path that guides the traveling direction of the sound wave output from the speaker housed in the individual space to a second direction that intersects the first direction and intersects the normal line, and a sound emission port for emitting the sound wave whose traveling direction is guided to the second direction to the outside are provided. In the partition wall, a communication hole for communicating between the pair of individual spaces is provided. Each of the pair of individual spaces is partitioned by a speaker housed in the individual space, so that a front space located in front of the speaker in the direction along the normal line and a rear space located behind the speaker in the direction along the normal line are provided, The communication hole is arranged in the internal space such that it is on the opposite side to the side where the sound emission port is provided in both the direction along the second direction and the direction along the normal line. and are provided so as to communicate the rear spaces among the front space and the rear spaces,The display unit is adjacently arranged in a direction along the normal line with respect to the speaker unit such that the sound emission port is closer to the display unit side than the communication hole. This is the gist of the present invention.

Brief Explanation of Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0008] The embodiments of the present invention will be described below with reference to the drawings.

[0009] FIG. 1 is a diagram showing the external configuration of an electronic device 10 including a speaker device according to an embodiment of the present invention. FIG. 1(A) is a front view of the electronic device 10 in a completed state, and FIG. 1(B) is a front view of the electronic device 10 with the bezel component 16 removed.

[0010] The main body of the electronic device 10 is configured by being housed in a rectangular flat device housing having dimensions of, for example, approximately 60 mm in length, 100 mm in width, and 10 mm in height. The main part of the device housing is configured by overlapping and engaging an upper case 11 and a lower case 12.

[0011] As shown in FIG. 1(B), the upper case 11 has a frame portion 11a that forms the left and right side edges and the lower side edge, an LCD mounting portion 11b that is recessed in the back direction and surrounded by the frame portion 11a, a wiring hole 11b opened along the right end of the LCD mounting portion 11b, and an upper frame portion 11c that forms the upper side edge.

[0012] The LCD mounting portion 11b incorporates an LCD 13 and a touch panel 14 in an overlapping manner, and the upper frame portion 11c incorporates a box speaker 15.

[0013] The box speaker 15 has two sound emission slits 15L and 15R formed along the lower end of its front surface, and emits sound waves through the sound emission slits 15L and 15R.

[0014] Further, the box speaker 15 has stepped portions 15D1 and 15D2 (see FIG. 2) that are lower than the front central portion where the sound emission slits 15L and 15R are formed at both the left and right ends thereof. By abutting the stepped portions 15D1 and 15D2 against speaker suppressing portions 11p1 and 11p2 protruding from the back surface of the upper frame portion 11c in the upper case 11 and incorporating them, the height of the front central portion where the sound emission slits 15L and 15R are located is regulated to be lower than the height of the front surface of the upper frame portion 11c in the upper case 11.

[0015] Then, a bezel component 16 formed to cover from the upper end of the equipment housing to a part of the upper ends of the LCD 13 and the touch panel 14 is engaged and provided on the upper frame portion 11c of the upper case 11 incorporating the box speaker 15. This bezel component 16 has a sound emission area in which a large number of sound emission holes 16a... are formed on the surface facing the front of the box speaker 15, and the sound waves emitted from the sound emission slits 15L and 15R of the box speaker 15 are led to the outside through the sound emission holes 16a...

[0016] Since the height in the front of the sound emission slits 15L and 15R of the box speaker 15 is regulated to be lower than the height in the front of the upper frame portion 11c in the upper case 11, a gap d is formed and held between the front of the box speaker 15 and the back surface of the bezel component 16 (see FIG. 4(D)). The sound waves are efficiently emitted from the sound emission holes 16a... of the bezel component 16, and the vibration accompanying the emission of the sound waves from the box speaker 15 is not transmitted to the bezel component 16, preventing the generation of rattling sounds and suppressing the deterioration of sound quality.

[0017] FIG. 2 is a diagram showing the external configuration of the box speaker 15 incorporated in the electronic device 10. In the figure, (A) is an overall perspective view, (B) is a front view, (C) is a right side view, (D) is a rear view, and (E) is a top view.

[0018] The box speaker 15 has a small size of, for example, about 5 mm in length × 30 mm in width × 8 mm in height, and has an inverted T-shaped housing with stepped portions 15D1 and 15D2 formed on the left and right when viewed from the upper surface side or the lower surface side shown in FIG. 2(E). As shown in FIGS. 2(A) and 2(B), at the lower end of the front panel 15F, sound emission slits 15L and 15R each having a width of about 1 mm and divided into two on the left and right along the lower panel 15B are provided.

[0019] Among the sound waves SL and SR generated by the two speakers 19L and 19R (described later with reference to FIGS. 3 and 4) of the same specification incorporated in the box speaker 15, the sound wave SL is emitted through the sound emission slit 15L, and the sound wave SR is emitted through the sound emission slit 15R.

[0020] Note that, as shown in FIGS. 2(A) and 2(E), on the upper surface plate 15U of the box speaker 15, speaker wiring holes 15H1 and 15H2 for passing the wirings respectively connected to the built-in speakers 19L and 19R are provided at positions corresponding to the left and right stepped portions 15D1 and 15D2 thereof.

[0021] FIG. 3 is a view showing a cross section of the electronic device 10 in the left-right direction at the position of the box speaker 15. FIG. 3(A) is a cross-sectional view taken along line A-A of the electronic device 10 shown in FIG. 1, and FIG. 3(B) is a cross-sectional view taken along line A'-A' of the electronic device 10 shown in FIG. 1.

[0022] FIG. 4 is a view showing a cross section of the electronic device 10 in the up-down direction at the position of the box speaker 15. FIG. 4(A) is a cross-sectional view taken along line B-B of the electronic device 10 shown in FIG. 1, FIG. 4(B) is a cross-sectional view taken along line B'-B' of the electronic device 10 shown in FIG. 1, FIG. 4(C) is a cross-sectional view taken along line B''-B'' of the electronic device 10 shown in FIG. 1, and FIG. 4(D) is an enlarged view of a portion P of FIG. 4(A).

[0023] The device housing of the electronic device 10 has an internal case 17 provided along the inside of the lower case 12, and a circuit board 18 is disposed under the back surface of the LCD mounting portion 11b in the upper case 11.

[0024] The box speaker 15 is positioned with respect to the device housing of the electronic device 10 in a state of being sandwiched by upper positioning portions 11s1 and 11s2 protruding inside the upper case 11 as shown in FIG. 3(A) in the left-right direction thereof, and is also positioned in a state of being sandwiched by lower positioning portions 17s1 and 17s2 protruding inside the internal case 17 as shown in FIG. 3(B).

[0025] Further, the box speaker 15 is positioned by abutting the position on the upper surface plate 15U side against the protrusion 11e that protrudes inward from the upper case 11 that wraps around the upper part of the equipment housing as shown in FIGS. 4(A) and (D) with respect to the equipment housing, and the position of the lower surface plate 15B is positioned by abutting against the upper wall 11ba of the LCD mounting portion 11b in the upper case 11 as shown in FIGS. 4(A) to (D).

[0026] Then, as shown in FIGS. 3(A) and (B) and FIG. 4(C), the box speaker 15 is incorporated such that the stepped portions 15D1 and 15D2 on the left and right of the front thereof abut against the speaker restraining portions 11p1 and 11p2 that protrude from the back side of the upper case 11 and are sandwiched between the internal case 17.

[0027] At this time, as described above, by abutting and restraining the stepped portions 15D1 and 15D2 on the left and right of the front of the box speaker 15 against the speaker restraining portions 11p1 and 11p2 on the back side of the upper case 11, the height of the front panel 15F of the box speaker 15 is regulated to be lower than the height of the upper frame portion 11c in the upper case 11. When the box speaker 15 is incorporated into the electronic device 10, as shown in FIG. 4(D), a gap d is formed between the surface of the front panel 15F of the box speaker 15 and the back surface of the bezel component 16 that covers the upper part of the equipment housing.

[0028] Next, the internal structure of the box speaker 15 will be described.

[0029] A plurality (here, two) of speakers 19L and 19R are incorporated and built into the box speaker 15.

[0030] A partition wall 21 that divides the internal space of the box speaker 15 into left and right is provided at the center in the left - right direction of the box speaker 15, and slit walls 22L and 22R that hang down with a predetermined width in parallel with the lower surface plate 15B along the gaps of the respective sound - emitting slits 15L and 15R are provided on the front panel 15F.

[0031] Further, on the inner surface of the bottom panel 15B of the box speaker 15, partition portions 23L and 23R are provided at positions corresponding to the boundaries between the front panel 15F and the stepped portions 15D1 and 15D2 on its left and right at a height reaching at least the slit walls 22L and 22R.

[0032] Then, speaker mounting stepped portions 24L and 24R having an L-shaped cross section that are continuously annular at an equal height from the bottom panel 15B are provided across the inner lower ends on the inner surface sides of the respective slit walls 22L and 22R, the respective partition portions 23L and 23R, the inner surface of the bottom plate of the box speaker 15, and the side surfaces of the central partition wall 21.

[0033] With respect to these speaker mounting stepped portions 24L and 24R, L-shaped outer frame portions 19F that surround the outer peripheries of the fronts (the front sides of the diaphragms) of the speakers 19L and 19R are respectively engaged and fixed by adhesion or the like, and the rear sides of the speakers 19L and 19R are closed by the top panel 15U.

[0034] Thereby, the spaces in front of and behind each of the speakers 19L and 19R are isolated, and the space 20L in front of the speaker 19L and the space 20R in front of the speaker 19R are isolated by the partition wall 21.

[0035] Then, sound waves SL and SR output from the diaphragms of the respective speakers 19L and 19R in the frontward direction thereof are respectively propagated using the front spaces 20L and 20R as sound guiding paths and are emitted from the corresponding sound emitting slits 15L and 15R. At this time, the sound waves SL and SR output from the diaphragms of the respective speakers 19L and 19R in the substantially normal direction thereof are respectively guided and emitted in the direction of the sound emitting slits 15L and 15R substantially perpendicularly along the bottom panel 15B of the box speaker 15 in their sound guiding paths (20L and 20R).

[0036] In this way, the sound waves SL and SR output from the speakers 19L and 19R are vertically redirected along the lower faceplate 15B located in front of the speakers 19L and 19R and emitted from the sound emission slits 15L and 15R. In this way, when the sound wave travels so as to change the traveling direction by 90°, the higher the frequency band of the sound, the higher the directivity, and thus the greater the attenuation associated with the change in the traveling direction. For this reason, for the sound output from the speakers 19L and 19R, the sound with a relatively high frequency band has a relatively large attenuation, so the sound pressure becomes relatively small, and the sound with a relatively low frequency band has a relatively small attenuation, so the sound pressure becomes relatively large. As a result, compared with the sound immediately after being emitted from the diaphragms of the speakers 19L and 19R, the sound with emphasized bass is output from the speakers 19L and 19R.

[0037] Also, as shown in FIGS. 3(B) and 4(B), the rear space (resonance space) 25L of the speaker 19L and the rear space (resonance space) 25R of the speaker 19R are partitioned by the partition wall 21, but are in a partially communicating state through a communication hole 21h provided at a position along the front faceplate 15U of the box speaker 15 of the partition wall 21.

[0038] FIG. 5 is a diagram showing the evaluation results of the acoustic characteristics by the box speaker 15 of the electronic device 10.

[0039] "Partial sharing" in FIG. 5 means that by interposing the partition wall 21 provided with the communication hole 21h between the rear space 25L of the speaker 19L and the rear space 25R of the speaker 19R in the box speaker 15 configured in the above embodiment, only a part of the rear spaces 25L and 25R of the respective speakers 19L and 19R are communicated and shared (partial sharing), which is the result of the acoustic characteristics. On the other hand, "sharing" is the result of the acoustic characteristics in a shared state where the partition wall 21 is not provided between the rear space 25L of the speaker 19L and the rear space 25R of the speaker 19R, and "isolation" is the result of the acoustic characteristics in a state where the two rear spaces 25L and 25R are completely isolated by interposing a partition wall without the communication hole 21h between the rear space 25L of the speaker 19L and the rear space 25R of the speaker 19R.

[0040] The evaluation result of the acoustic characteristics is a comprehensive evaluation result of sound pressure and sound quality. Hereinafter, each evaluation result will be described in detail.

[0041] In the case of "sharing", since the partition wall 21 did not intervene between the rear spaces 25L and 25R of the respective speakers 19L and 19R, and the rear spaces 25L and 25R of the respective speakers 19L and 19R were completely shared, the amplitude of the diaphragm of each of the speakers 19L and 19R was increased, resulting in an improvement in sound pressure. As a result, in the frequency band higher than 1000 Hz, it was evaluated higher than "isolation" and "partial sharing". On the other hand, since internal resonance occurred and the reproducibility of sound (sound quality) decreased, it was evaluated lower than "isolation" and "partial sharing" in the frequency band higher than 300 Hz and lower than or equal to 1000 Hz.

[0042] In the case of "isolation", since the rear spaces 25L and 25R of the respective speakers 19L and 19R were isolated by a partition wall without providing communication holes 21h, internal resonance was suppressed and the reproducibility of sound (sound quality) was improved. As a result, in the range from 500 Hz to 1000 Hz, it was evaluated higher than "sharing". On the other hand, since a sufficient amplitude of the diaphragm of each of the speakers 19L and 19R could not be obtained and the sound pressure decreased, it was evaluated lower than "partial sharing" in the ranges from 500 Hz to 800 Hz and from 1000 Hz to 2000 Hz.

[0043] In the case of "partial sharing" which is the structure of the box speaker 15 of the present embodiment, a partition wall 21 provided with the communication hole 21h is interposed between the rear spaces 25L of the speaker 19L and the rear space 25R of the speaker 19R, and only a part of the rear spaces 25L and 25R of the speakers 19L and 19R are shared and divided. As a result, in the frequency band X from around 300 Hz to around 2000 Hz, good evaluation results with a good balance in both sound pressure and sound quality were obtained. Therefore, by making the box speaker 15 have a "partial sharing" structure, it can be said that it is easier to hear a human voice compared to "sharing" or "isolation". For example, in a device such as an electronic dictionary where it is preferable to easily hear a human voice, it has been found that the structure of the box speaker 15 of the present embodiment is effective.

[0044] According to the box speaker 15 having the above configuration, two speakers 19L and 19R of the same specification are arranged inside the housing such that their respective diaphragms are in the same plane and in the same direction, and the front spaces 20L and 20R and the rear spaces 25L and 25R of the respective speakers 19L and 19R are isolated. Further, a partition wall 21 parallel to the normal direction of each of the speakers 19L and 19R is provided between the speakers 19L and 19R, the front space 20L of the speaker 19L and the front space 20R of the speaker 19R are isolated with the same capacity, and the rear space 25L of the speaker 19L and the rear space 25R of the speaker 19R are divided with the same capacity.

[0045] That is, the box speaker 15 includes a plurality of speakers 19L and 19R, a partition wall 21 provided between the plurality of speakers 19L and 19R, and a housing that houses the plurality of speakers 19L and 19R and the partition wall 21. The plurality of speakers 19L and 19R are housed in the housing such that the front surfaces of the respective speakers 19L and 19R face the same direction. Each front space located in front of each of the speakers 19L and 19R and each rear space located behind each of the speakers 19L and 19R are isolated from each other. The front spaces of the plurality of speakers 19L and 19R are isolated from each other. The rear spaces of the plurality of speakers 19L and 19R are divided from each other by the partition wall 21, and adjacent rear spaces communicate with each other through communication holes 21 provided in the partition wall 21. On the wall surface of the housing that defines a part of the front space of each of the plurality of speakers 19L and 19R, sound emission slits 15L and 15R that communicate the front space of each of the plurality of speakers 19L and 19R with the external space of the housing are provided.

[0046] Then, on the wall surface of the housing that constitutes the front spaces 20L and 20R of the respective speakers 19L and 19R, on the wall surface whose normal direction intersects the normal direction of the diaphragm of each of the speakers 19L and 19R (that is, the wall surface located in a direction perpendicular to the normal direction of the diaphragm of each of the speakers 19L and 19R (here, the front panel 15F)), sound emission slits 15L and 15R that emit sound waves SL and SR using the front spaces 20L and 20R as sound guide paths, respectively, are provided.

[0047] Furthermore, a communication hole 21h is provided in a part of the partition wall 21 that divides the rear space 25L of the speaker 19L and the rear space 25R of the speaker 19R, and a resonance space that partially shares the respective rear spaces 25L and 25R is formed.

[0048] In this way, by making the rear spaces 25L and 25R of the respective speakers 19L and 19R into a resonance space that partially shares through the communication hole 21h provided in the partition wall 21, it is possible to improve the sound pressure and suppress the occurrence of internal resonance to improve the sound reproducibility (sound quality).

[0049] Also, by vertically changing the direction of the sound waves SL and SR output from each of the speakers 19L and 19R in the front spaces 20L and 20R which are their sound guiding paths, and discharging them from the sound emitting slits 15L and 15R, sound with emphasized bass is output from the speakers 19L and 19R as compared to the sound immediately after being emitted from the diaphragms of the speakers 19L and 19R.

[0050] Further, according to the electronic device 10 incorporating the box speaker 15 having the above configuration, the housing of the box speaker 15 is positioned and incorporated by having a part of its outer surface abut against a part of the inner surface of the device housing, and in the front panel 15F provided with the sound emitting slits 15L and 15R of the box speaker 15, a region provided with a plurality of sound emitting holes 16a... of the bezel member 16 covering a part of the device housing is arranged to face. In this case, the left and right stepped portions 15D1 and 15D2 of the box speaker 15 are suppressed and positioned by the speaker suppressing portions 11p1 and 11p2 provided to protrude to the back side of the upper case 11 of the device housing, and by maintaining a state in which a gap d is formed between the back surface of the bezel component 16, the sound waves SL and SR from the box speaker 15 can be efficiently emitted from the sound emitting holes 16a... of the bezel component 16, and moreover, vibrations accompanying the emission of the sound waves SL and SR from the box speaker 15 are not transmitted to the bezel component 16, preventing the generation of rattling sounds and improving the sound quality.

[0051] Note that although the box speaker 15 of the above embodiment has been described as incorporating two speakers 19L and 19R, even if it incorporates three or more speakers, by adopting the same configuration as the above embodiment, the same effects can of course be obtained.

[0052] The invention of the present application is not limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof at the implementation stage. Further, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment, or some constituent elements are combined in different forms, if the problems described in the column of the problems to be solved by the invention can be solved and the effects described in the column of the effects of the invention can be obtained, the configuration in which these constituent elements are deleted or combined can be extracted as an invention.

[0053] The invention described in the original claims of the present application is appended below.

[0054] [1] A speaker device comprising: a plurality of sound output elements; a wall portion provided between the plurality of sound output elements; and a housing that houses the plurality of sound output elements and the wall portion. The plurality of sound output elements are housed in the housing such that the front surfaces of the respective sound output elements face the same direction. Each front space located in front of each sound output element in the housing and each rear space located behind each sound output element in the housing are isolated from each other. Each front space of the plurality of sound output elements is isolated from each other. Each rear space of the plurality of sound output elements is divided from each other by the wall portion, and adjacent rear spaces are communicated with each other by a communication portion provided in the wall portion. A first sound radiating portion that communicates each front space of the plurality of sound output elements with the external space of the housing is provided on a wall surface of the housing that defines a part of each front space of the plurality of sound output elements. A speaker device characterized by the above.

[0055] [2] The wall portion is provided at a position where each rear space corresponding to the plurality of sound output elements is divided so as to have the same volume. The speaker device according to [1], characterized in that...

[0056] [3] The first sound emitting part is provided on a wall surface of the housing that defines a part of the front space of each of the plurality of sound emitting elements, and the normal direction of the wall surface intersects the normal direction of the front surface of each sound emitting element. The sound emitted from the plurality of sound emitting elements into each front space is guided in a direction intersecting the normal direction of the front surface of each sound emitting element and then emitted from the first sound emitting part. The speaker device according to [1] or [2], characterized in that...

[0057] [4] Equipment provided with the speaker device according to any one of [1] to [3].

[0058] [5] The housing of the equipment includes a sound emitting area provided with a second sound emitting part for emitting the sound emitted from the speaker device. The speaker device is arranged in the housing of the equipment such that the first sound emitting part of the speaker device faces the sound emitting area of the housing of the equipment. Equipment provided with the speaker device according to [4], characterized in that...

[0059] [6] In the housing of the equipment, the speaker device is aligned by having any part of the outer surface of the housing of the speaker device, excluding the part where the first sound emitting part is provided, abutted against a part of the inner surface of the housing of the equipment. Equipment provided with the speaker device according to [5], characterized in that...

[0060] [7] The speaker device is positioned in the housing of the device such that a part of the outer surface of the housing of the speaker device, excluding the part where the first sound emitting portion is provided, abuts against a part of the inner surface of the housing of the device, thereby maintaining a state in which a gap is formed between the surface of the speaker device where the first sound emitting portion is provided and the housing surface of the device having a sound emitting region. An apparatus comprising the speaker device according to [6], characterized in that.

Explanation of Signs

[0061] 10 … Electronic device 11 … Upper case 11b… LCD mounting portion 11ba… Upper wall of LCD mounting portion 11p1,11p2… Speaker suppressing portion 11s1,11s2… Upper positioning portion 12 … Lower case 13 … LCD 14 … Touch panel 15 … Box speaker 15L,15R… Sound emitting slit (first sound emitting portion) 15D1,15D2… Step portion 16 … Bezel component 16a… Sound emitting hole (second sound emitting portion) 17 … Inner case 17s1,17s2… Lower positioning portion 18 … Circuit board 19L,19R… Speakers 19F… L-shaped outer frame portion 20L,20R… Front space (sound guiding path) 21 … Partition wall between speakers (wall portion) 21h… Communication hole (communication portion) 22L,22R… Slit wall 23L,23R… Partition portion 24L,24R… Speaker mounting step portion 25L,25R… Rear space (resonance space) SL,SR… Sound waves

Claims

1. A pair of speakers arranged adjacent to each other in a first direction such that the normal lines of the vibrating surfaces in the diaphragm are parallel to each other and the arrangement positions of the vibrating surfaces in the direction along the normal lines are equal to each other, a housing that houses the pair of speakers, comprising: In the housing, a pair of individual spaces for individually housing each of the pair of speakers are provided by partitioning the internal space of the housing with a predetermined partition wall, In each of the pair of individual spaces, a sound guiding path for guiding the traveling direction of the sound wave output from the speaker housed in the individual space to a second direction that intersects the first direction and intersects the normal line, and a sound emitting port for emitting the sound wave whose traveling direction is guided in the second direction to the outside are provided, In the partition wall, a communication hole for communicating between the pair of individual spaces is provided, Each of the pair of individual spaces is partitioned by the speaker housed in the individual space, so that a front space located in front of the speaker in the direction along the normal line and a rear space located behind the speaker in the direction along the normal line are provided, The communication hole is provided such that the arrangement position in the internal space is on the opposite side to the side where the sound emitting port is provided in both the direction along the second direction and the direction along the normal line, and such that the rear spaces among the front space and the rear space communicate with each other, A speaker unit characterized by the above.

2. The sound emitting port is provided as a slit formed such that the longitudinal direction is parallel to the direction along the first direction. The speaker unit according to claim 1, characterized by the above.

3. The sound emitting port provided in one of the pair of individual spaces is provided such that a predetermined interval is provided between it and the sound emitting port provided in the other of the pair of individual spaces. The speaker unit according to claim 1 or 2, characterized by the above.

4. The interval is equal to the thickness of the partition wall. The speaker unit according to claim 3, characterized by the above.

5. A speaker unit provided adjacent to the display unit is provided, The speaker unit is A pair of speakers arranged adjacent to each other in a first direction such that the normal lines of the vibrating surfaces in the diaphragm are parallel to each other and the arrangement positions of the vibrating surfaces in the direction along the normal lines are equal to each other, A housing that houses the pair of speakers, comprising, in the housing, a pair of individual spaces are provided in which the internal space of the housing is partitioned by a predetermined partition wall to individually house each of the pair of speakers, in each of the pair of individual spaces, a sound guide path that guides the traveling direction of the sound wave output from the speaker housed in the individual space to a second direction that intersects the first direction and intersects the normal line, and a sound emission port for emitting the sound wave whose traveling direction is guided in the second direction to the outside are provided, in the partition wall, a communication hole that communicates between the pair of individual spaces is provided, each of the pair of individual spaces is partitioned by the speaker housed in the individual space, so that a front space located on the front side of the speaker and a rear space located on the rear side of the speaker in the direction along the normal line are provided, the communication hole is provided such that the arrangement position in the internal space is on the opposite side to the side where the sound emission port is provided in both the direction along the second direction and the direction along the normal line, and such that the rear spaces among the front space and the rear space communicate with each other, the display unit is disposed adjacent to the speaker unit in the direction along the normal line so that the sound emission port is closer to the display unit than the communication hole, A language learning support device characterized by the above.

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