JP7357552B2 - sound output device - Google Patents

Description

The present invention relates to a drainage mechanism in a sound output device.

The speaker unit of the sound output device is provided with an opening for passing sound from the speaker, and there is a possibility that dust or water may enter the inside of the speaker through the opening. In particular, it is important to take waterproof measures for electronic devices such as wearable speakers that are often used outdoors so that they can be used even during rainy weather.

As a prior art, a speaker unit equipped with a dustproof mechanism is known. For example, Patent Document 1 discloses a portable electronic device in which a dustproof plate, in which a dustproof net and a reinforcing sheet are bonded together, is installed on the front surface of a speaker or on the inner surface of a cabinet opposing the front surface.

Japanese Patent Application Publication No. 2005-318209

However, in the method described in Patent Document 1, there is no passage for draining water, and a dustproof net made of nonwoven fabric is provided in front of the speaker. Therefore, if water gets into the speaker through the dustproof net, there is a problem in that it takes time to drain the water.

One aspect of the present invention has been made in view of the above problems, and an object thereof is to provide a sound output device that can easily discharge water inside a speaker unit in a short time. be.

In order to solve the above problems, a sound output device according to one aspect of the present invention includes a vibration member that is provided inside a speaker unit and generates sound, and a sound emission path that connects the vibration member to the top surface of the speaker unit. and a cover member disposed on the upper surface of the speaker unit so as to form an opening through which a part of the upper surface side of the sound emission path is opened.

According to one aspect of the present invention, water that has entered the inside of the speaker unit can be easily discharged in a short time.

FIG. 1 is a top view showing the configuration of a wearable speaker according to an embodiment. FIG. 1 is a perspective view showing the configuration of a wearable speaker according to an embodiment. FIG. 1 is a perspective view showing the configuration of a speaker unit according to an embodiment. FIG. 2 is a cross-sectional view of the wearable speaker according to one embodiment taken along the longitudinal direction of the right casing in FIG. 1 and perpendicular to the top surface of the speaker unit 1 at the position of the sound emission path. FIG. 2 is a perspective view showing the configuration of a cover member according to an embodiment. FIG. 2 is a cross-sectional view of a wearable speaker according to a modified example of the embodiment, taken along the longitudinal direction of the right casing in FIG. 1 and perpendicular to the top surface of the speaker unit 1 at the position of the sound emission path. It is a perspective view which shows the structure of the cover member based on the modification of one embodiment.

[Embodiment 1]
FIG. 1 is a top view showing the configuration of wearable speaker 100. FIG. 2 is a perspective view showing the configuration of wearable speaker 100. Wearable speaker 100 (sound output device) includes a U-shaped (horseshoe-shaped) housing 101. The housing 101 includes a central housing 101C, a right housing 101R, and a left housing 101L. The right housing 101R includes a right outer housing 102R and a right inner housing 103R. The left housing 101L includes a left outer housing 102L and a left inner housing 103L. Openings are formed in the right inner housing 103R and the left inner housing 103L at positions corresponding to the speaker units 1. Wearable speaker 100 includes a plurality of grilles 3 and a plurality of speaker units 1 inside a casing 101 and at the opening position. The grill 3 is a plate that protects the speaker unit 1 and has a plurality of holes for emitting sound. Wearable speaker 100 is used, for example, by hanging around the user's neck. A speaker unit 1 is placed at a position corresponding to both ears of the user. The U-shaped (horseshoe) shape may be any shape with an open end, including, for example, a C-shaped shape. Note that the shape of the housing 101 may be a closed annular shape as long as the inner diameter is large enough to allow the user's head to pass through.

FIG. 3 is a perspective view showing the configuration of the speaker unit 1. The speaker unit 1 includes a vibrating member 2 (cone) that vibrates to generate sound, and a sound emission path 4. The vibration member 2 is arranged inside the speaker unit 1. The sound emission path 4 is a space (opening) that connects the vibration member 2 to the upper surface 1a of the speaker unit 1. The sound emission path 4 is a space between two inner walls of the speaker unit 1 that serves as a reflector that reflects sound and gives directionality to the sound. The speaker unit 1 includes a top surface 1a in which a sound emission path 4 (opening) for emitting sound is formed, a first side surface 1b adjacent to the top surface 1a, and a side opposite to the first side surface 1b adjacent to the top surface 1a. It has a second side surface 1c. Here, the first side surface 1b and the second side surface 1c are perpendicular to the upper surface 1a, but are not limited thereto and may not be perpendicular.

FIG. 4 is a cross-sectional view of the wearable speaker 100 taken along the longitudinal direction of the right casing 101R in FIG. 1 and perpendicular to the upper surface 1a of the speaker unit 1 at the position of the sound emission path 4. The wearable speaker 100 includes a cover member 5 (speaker net) between the upper surface 1a of the speaker unit 1 and the grille 3. FIG. 5 is a perspective view showing the structure of the cover member 5. As shown in FIG. The cover member 5 is attached to the upper surface 1a of the speaker unit 1 or the grille 3 by thermal bonding or adhesive. The cover member 5 is, for example, a dustproof sheet, and specifically, it is made of gauze, mesh, nonwoven fabric, or the like. The cover member 5 has a plurality of holes for emitting sound, said plurality of holes being smaller than those of the grille 3. Therefore, the cover member 5 can prevent dust that has passed through the plurality of holes of the grille 3 from entering the inside of the speaker unit 1. On the other hand, since the cover member 5 has a plurality of holes large enough to emit sound, it cannot prevent water from entering, but allows water to pass through to the inside of the sound emitting path 4 of the speaker unit 1. However, the mesh of the cover member 5 is much finer than that of the grille 3 in order to provide a dust-proofing or a blinding effect as described below. Therefore, the speed at which water passes through the cover member 5 is much slower than that through the grille 3. Note that the area around the vibrating member 2 is waterproof, and water does not enter into the inner side of the vibrating member 2. In the vibration member 2, the vibration surface is a surface located on the sound emission path 4 side (opening side of the housing 101).

The cover member 5 does not cover at least a part of the sound emission path 4, but covers other parts of the sound emission path 4, and is arranged on the upper surface 1a of the speaker unit 1. That is, the cover member 5 is arranged on the upper surface 1a of the speaker unit 1 so as to form an opening 4a in which a part of the upper surface side of the sound emission path 4 is opened. With the above configuration, the sound emission path 4 has an opening 4a that is not covered by the cover member 5. The user tilts the wearable speaker 100 so that the opening 4a of the sound emission path 4 is on the lower side (the grille 3 is on the lower side), so that water that has entered the inside of the speaker unit 1 can be removed from the opening of the sound emission path 4. It can be discharged to the outside of the speaker unit 1 through the portion 4a. Therefore, the wearable speaker 100 according to the present embodiment can drain water that has entered the inside of the speaker unit 1 in a shorter time than when the sound emission path 4 is completely covered by the cover member 5. Furthermore, since the wearable speaker 100 according to the present embodiment can drain water from the water inlet, the user can easily know how to tilt the portable wearable speaker 100 to drain water. can be judged. Therefore, the user can easily drain the water.

Further, the cover member 5 may be arranged on the upper surface 1a of the speaker unit 1 so that the cover member 5 covers the entire vibrating member 2 when viewed from a direction perpendicular to the vibration surface of the vibrating member 2 (FIG. reference). That is, the cover member 5 may be arranged on the upper surface 1a of the vibration member 2 in a direction substantially perpendicular to the vibration surface. The vibrating member 2 is typically silver in color and emits reflected light to the outside. The cover member 5 with fine mesh can suppress the reflected light. Therefore, the cover member 5 in the wearable speaker 100 in this embodiment can prevent the vibrating member 2 from being seen through the opening and the plurality of holes in the grille 3 from the outside of the wearable speaker 100.

Further, the speaker unit 1 may include a slope 4b that is inclined with respect to the upper surface 1a as one of the wall surfaces forming the sound emission path 4 (see FIG. 4). The cross-sectional shape of the slope 4b may be, for example, a shape obtained by cutting an ellipse into a quarter. With the above configuration, the slope 4b functions as a reflector that improves the directivity of sound. Furthermore, when viewed from a direction perpendicular to the vibration surface of the vibration member 2, the cover member 5 may have a configuration in which it does not cover at least a portion of the slope 4b. According to this, the opening 4a is formed at a position corresponding to the slope 4b. Therefore, the user can easily drain the water by simply tilting the wearable speaker 100.

Further, the opening 4a may be formed between the edge of the cover member 5 and the edge of the wall surface (slope 4b) forming the sound emission path 4. For example, the cover member 5 may be arranged from an end in the longitudinal direction of the upper surface 1a of the speaker unit 1 to near the center, as shown in FIG.

[Modification 1]
Modifications of the present invention will be described below. For convenience of explanation, members having the same functions as the members described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

FIG. 6 is a cross-sectional view of the wearable speaker 100 in Modification Example 1 taken along the longitudinal direction of the right housing 101R and perpendicular to the upper surface 1a of the speaker unit 1 at the position of the sound emission path 4. . The wearable speaker 100 includes a cover member 10 disposed on the upper surface 1a of the speaker unit 1 over the entire sound emission path 4. FIG. 7 is a perspective view showing the configuration of the cover member 10 in Modification 1. The cover member 10 has a drain hole 11 at a position corresponding to the sound emission path 4. That is, the opening 4a in the first modification is a drain hole 11 that is opened at any position of the cover member 10. The cover member 10 covers the entire sound emission path 4 of the speaker unit 1, and the drain hole 11 is located at a position corresponding to the sound emission path 4. When viewed from a direction perpendicular to the vibration surface of the vibration member 2, the drain hole 11 does not overlap the vibration member 2. With the above configuration, the drain hole 11 can have the same function as the opening 4a of the sound emission path 4 in the first embodiment.

〔summary〕
A sound output device according to an aspect 1 of the present invention includes a speaker unit including a vibration member provided inside a speaker unit to generate sound, a sound emission path connected from the vibration member to an upper surface of the speaker unit, and the sound output device. and a cover member disposed on the upper surface of the speaker unit so as to form an opening in which a portion of the upper surface side of the channel is opened.

According to the above configuration, the sound emission path includes an opening that is not covered by the cover member. Therefore, water that has entered the inside of the speaker unit can be discharged in a shorter time than when the sound emission path is completely covered by the cover member. Further, since water can be discharged from the water inlet, the user can easily discharge the water.

The cover member of the sound output device according to the second aspect of the present invention may be arranged on the upper surface in a direction substantially perpendicular to the vibration surface of the vibration member.

According to the above configuration, the cover member can prevent the vibrating member from being visible from outside the wearable speaker.

A speaker unit of a sound output device according to an aspect 3 of the present invention, in the above aspect 1 or 2, includes a slope inclined with respect to the upper surface as one of the wall surfaces forming the sound emission path, and the opening portion is The structure may be formed at a position corresponding to the slope.

According to the above configuration, the slope functions as a reflector that improves the directivity of sound. Further, since the speaker unit has an opening at a position corresponding to the slope, water can be easily drained simply by tilting the speaker unit.

In any one of the above aspects 1 to 3, the opening of the sound output device according to aspect 4 of the present invention is formed between an edge of the cover member and an edge of the wall surface forming the sound emission path. It may be. According to the above configuration, the cover member can have a simple configuration.

The opening of the sound output device according to aspect 5 of the present invention may be configured to be a drain hole opened at any position of the cover member in any one of aspects 1 to 3 above. According to the above configuration, the water drain hole can have the same function as the opening in Aspects 1 to 4.

The cover member of the sound output device according to aspect 6 of the present invention may be gauze, mesh, or nonwoven fabric in any of aspects 1 to 5 above. According to the above configuration, the cover member can prevent dust from entering the speaker unit.

The sound output device according to aspect 7 of the present invention may be a wearable speaker in any of aspects 1 to 6 above. The user can easily tilt the wearable speaker and can quickly drain water that has entered the speaker unit.

The sound output device according to aspect 8 of the present invention is the wearable speaker according to aspect 7, which has a U-shaped housing and at least one speaker unit inside each of one side and the other side of the housing. The housing may have an opening formed at a position corresponding to each of the plurality of speaker units. According to the above configuration, the user can wear the housing around his neck, and the sound output device can output sound to the left and right ears of the user.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. are also included within the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1 Speaker unit 1a Top surface 2 Vibration member 3 Grill 4 Sound emission path 4a Opening 4b Slope 5, 10 Cover member 11 Drain hole 100 Wearable speaker (sound output device)
101 Case 101C Central case 101L Left case 101R Right case 102L Left outer case 102R Right outer case 103L Left inner case 103R Right inner case

Claims (9)

A speaker unit including a vibrating member that is installed inside the speaker unit and generates sound, and a sound emission path that connects the vibrating member to the top surface of the speaker unit;
a grill arranged on the upper surface side of the speaker unit and covering the exit of the sound emission path;
A cover member is provided between the upper surface of the speaker unit and the grille so as to form an opening for draining water through which a part of the exit of the sound emission path is opened. Sound output device. Further equipped with a U-shaped housing,
The speaker unit is provided inside at least one of one side and the other side of the housing,
The sound output device according to claim 1, wherein the opening is located closer to the tip of the housing than the center of the exit of the sound emission path. U-shaped housing,
A speaker unit provided inside at least one of one side and the other side of the casing, the speaker unit including a vibration member provided inside the speaker unit and generating sound, and a vibration member connected to an upper surface of the speaker unit. a speaker unit having a sound emission path;
a cover member disposed on the upper surface of the speaker unit so as to form an opening for draining water through which a part of the outlet of the sound emission path is opened ;
The sound output device is characterized in that the opening is located closer to the tip of the casing than the center of the exit of the sound emission path. The sound output device according to any one of claims 1 to 3, wherein the cover member is arranged on the upper surface in a direction substantially perpendicular to the vibration surface of the vibration member. The speaker unit includes a slope inclined with respect to the upper surface as one of the wall surfaces forming the sound emission path,
5. The sound output device according to claim 1, wherein the opening is formed at a position corresponding to the slope. The sound output according to any one of claims 1 to 5 , wherein the opening is formed between an edge of the cover member and an edge of a wall surface forming the sound emission path. Device. The sound output device according to any one of claims 1 to 5 , wherein the opening is a drain hole opened at any position of the cover member. The sound output device according to any one of claims 1 to 7 , wherein the cover member is made of gauze, mesh, or nonwoven fabric. The sound output device according to any one of claims 1 to 8 , which is a wearable speaker.

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