Speaker

Abstract

To provide a speaker that can suppress deterioration in appearance.SOLUTION: A speaker 100 includes a cabinet 10 having a cover portion 11 provided with a sound emission hole 13, a speaker portion 20 housed in the cabinet 10, a gasket 23 that is provided to surround the sound emission hole 13 and is a sealing portion that seals between the cover portion 11 and the speaker portion 20, and a slit portion 30 that is provided from an inner circumference to an outer circumference of the gasket 23 so as to communicate between an inside and an outside of an area surrounded by the gasket 23.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a speaker. [Background technology]

[0002] Speakers that are installed in ceilings are known (see, for example, Patent Document 1). When such speakers are installed in places where they may be exposed to water, such as outdoor or indoor swimming pools, bathrooms, shower rooms, etc., they are provided with a structure to drain water from inside to prevent water from accumulating inside. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-244992 Summary of the Invention [Problem to be solved by the invention]

[0004] As the water drainage structure, for example, a configuration in which drainage holes are provided on the exterior of the speaker has been proposed, but this configuration is undesirable from a design perspective because the drainage holes are black and stand out, detracting from the appearance.

[0005] The present invention has been made in view of the above, and has an object to provide a speaker that can suppress deterioration in appearance. [Means for solving the problem]

[0006] The speaker of the present invention comprises a cabinet having a cover portion with a sound emission hole, a speaker unit housed in the cabinet, a sealing portion arranged to surround the sound emission hole and seal the space between the cover portion and the speaker unit, and a slit portion arranged from the inner periphery to the outer periphery of the sealing portion so as to connect the inside and outside of the area surrounded by the sealing portion. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a speaker that can suppress deterioration in appearance. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram illustrating an example of a speaker according to the first embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing an example of the speaker according to the first embodiment. [Figure 3] FIG. 3 is a diagram showing the configuration along the cross section AA in FIG. [Figure 4] FIG. 4 is a diagram illustrating an example of a speaker according to the second embodiment. [Figure 5] FIG. 5 is a perspective view showing an example of a speaker according to the second embodiment. [Figure 6] FIG. 6 is an exploded perspective view showing a speaker according to another example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of a speaker according to the present invention will be described with reference to the drawings. However, the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially identical.

[0010] [First embodiment] FIG. 1 is a diagram showing an example of a speaker 100 according to a first embodiment. In FIG. 1, a cross section of part of the configuration (a cabinet 10, a gasket 23, and a slit portion 30) is shown. As shown in FIG. 1, the speaker 100 is installed in a ceiling portion C and emits sound downward. The speaker 100 may be installed under the eaves outdoors, for example, in a multi-story parking lot, a shopping mall, etc., or may be installed in the ceiling of an indoor space such as a bathroom, shower room, kitchen, swimming pool, etc.

[0011] The speaker 100 comprises a cabinet 10 and a speaker unit 20. The speaker 100 is detachable from a base cabinet (not shown) or a base metal fitting that is pre-installed on a ceiling or the like. The base cabinet can accommodate the electrical components of the speaker 100. By arranging the electrical components of the speaker 100 in the base cabinet, the risk of water intrusion into the electrical components can be reduced. FIG. 2 is an exploded perspective view showing an example of the speaker 100 according to the first embodiment. In FIG. 2, the cabinet 10 and the speaker unit 20 are shown as seen from different angles.

[0012] As shown in FIGS. 1 and 2, the cabinet 10 has a cover portion 11 and a side wall 12. The cover portion 11 is, for example, disk-shaped and covers the underside of the speaker unit 20. The cover portion 11 is provided with sound emission holes 13. The sound emission holes 13 are provided in a radial center portion 11a of the cover portion 11. The sound emission holes 13 penetrate the cover portion 11 in the thickness direction. When the speaker 100 is installed on the ceiling portion C (speaker installed state), the cover portion 11 is positioned so that the sound emission holes 13 face downward. When the speaker 100 is installed on the ceiling portion C (speaker installed state), the cover portion 11 is inclined so that the peripheral portion 11b becomes lower from the outer periphery toward the center portion 11a.

[0013] The side wall 12 is provided along the outer periphery of the cover portion 11. The side wall 12 is attached to the ceiling portion C.

[0014] The speaker unit 20 is housed in a portion of the cabinet 10 that is surrounded by the cover portion 11 and the side wall 12. The speaker unit 20 has a vibration source 21, a diaphragm 22, and a gasket 23. The vibration source 21 has, for example, a permanent magnet and a voice coil. The diaphragm 22 is connected to the voice coil and vibrates integrally with the voice coil. The diaphragm 22 is disposed opposite the cover portion 11.

[0015] Gasket 23 is provided in a ring shape along the outer edge of diaphragm 22 so as to surround diaphragm 22. Gasket 23 protrudes from the outer edge of diaphragm 22 toward cover part 11. Gasket 23 is formed using a resin material such as rubber.

[0016] In this embodiment, the gasket 23 is a sealing part that seals the gap between the cover part 11 of the cabinet 10 and the speaker unit 20. The speaker unit 20 is provided so that the lower end 23a of the gasket 23 contacts the central part 11a of the cover part 11 so as to surround the sound emission holes 13. The lower end 23a of the gasket 23 may also be provided so as to contact the sound emission holes 13 or the peripheral part 11b of the cover part 11. The gasket 23 separates an inner part K1 surrounded by the gasket 23 from an outer part K2 outside the gasket 23. Within the cabinet 10, electrical components for driving the vibration source 21, for example, are arranged above the outer part K2.

[0017] The gasket 23 has a slit portion 30. The slit portion 30 is provided from the inner peripheral portion 23b to the outer peripheral portion 23c of the gasket 23 so as to communicate the inside and outside of the portion surrounded by the gasket 23, i.e., the inner portion K1 and the outer portion K2. The slit portion 30 is formed from the lower end portion 23a of the gasket 23 over the entire height direction. Note that the slit portion 30 may be formed by cutting out a portion of the gasket 23 on the side of the lower end portion 23a that contacts the cabinet 10 in the height direction, for example.

[0018] The slits 30 are formed so as to cross the direction in which the gasket 23 extends. The slits 30 are formed along the horizontal direction when the speaker is installed. The slits 30 are formed so as to face laterally with respect to the penetration direction of the sound emission holes 13 when the speaker is installed.

[0019] The slit portions 30 are provided at a plurality of positions on the gasket 23. For example, the slit portions 30 can be arranged at two positions spaced 180° apart around the central axis AX of the speaker 100. Note that the number of slit portions 30 is not limited to the above example, and they may be arranged at three or more positions.

[0020] Fig. 3 is a diagram showing the configuration along the cross section AA in Fig. 1. Fig. 3 shows a state cut along a plane parallel to the horizontal plane at a height position where the gasket 23 and the slit portion 30 are provided.

[0021] 3, when water W enters the outer portion K2 inside the cabinet 10, it flows from the peripheral portion 11b toward the central portion 11a due to the inclination of the peripheral portion 11b. When this water W reaches the gasket 23, it passes through the slit portion 30 formed in the gasket 23 and reaches the inner portion K1. The water W that has reached the inner portion K1 is discharged to the outside of the cabinet 10 through the sound emission hole 13.

[0022] The peripheral edge 11b may be configured to be inclined downward in the circumferential direction toward the portion where the slit portion 30 is provided. In this case, as shown in Fig. 3, when water Wa enters a portion of the outer portion K2 where the slit portion 30 is not provided, the inclination of the peripheral edge 11b causes the water Wa to flow in the circumferential direction and reach the slit portion 30.

[0023] Furthermore, for example, when sound is output from the speaker 100, the diaphragm 22 vibrates. The pressure caused by the vibration of the diaphragm 22 promotes the water that has reached the inner portion K1 of the cabinet 10 to be expelled from the sound output hole 13 to the outside.

[0024] As described above, the speaker 100 according to this embodiment comprises the cabinet 10 having the cover portion 11 with the sound emission holes 13, the speaker unit 20 housed in the cabinet 10, the gasket 23 which is a sealing portion arranged to surround the sound emission holes 13 and seal the gap between the cover portion 11 and the speaker unit 20, and the slit portion 30 which is arranged from the inner peripheral portion 23b to the outer peripheral portion 23c of the gasket 23 so as to communicate the inside and outside of the portion surrounded by the gasket 23.

[0025] According to this configuration, the slit portion 30 is provided in the gasket 23 that seals the gap between the cover portion 11 and the speaker unit 20 inside the cabinet 10, so that water that has entered the inside of the cabinet 10 can be discharged from the slit portion 30 through the sound emission holes 13. In this way, the slit portion 30 for discharging water can be provided in a state that is not visible from the outside, so deterioration of the appearance can be suppressed. Furthermore, even if water gets on the cabinet 10 from outside, it is possible to suppress the water from entering the outer portion K2 and the like inside the cabinet 10.

[0026] In the speaker 100 according to this embodiment, the sealing portion includes a gasket 23 provided in the speaker unit 20, and the slit portion 30 is provided in the gasket 23. With this configuration, water that has entered the cabinet 10 can be appropriately guided to the sound emission hole 13.

[0027] In speaker 100 according to this embodiment, cover portion 11 is inclined so that, when the speaker is installed, it becomes lower from the outer periphery toward center portion 11a where sound output holes 13 are provided. With this configuration, water that has entered cabinet 10 can easily flow toward sound output holes 13, and therefore water can be efficiently discharged from sound output holes 13.

[0028] In the speaker 100 according to this embodiment, the slits 30 are provided at a plurality of positions on the gasket 23. With this configuration, water that has entered the cabinet 10 can be guided toward the sound emission hole 13 more reliably.

[0029] [Second embodiment] FIG. 4 is a diagram showing an example of a speaker 100A according to the second embodiment. FIG. 4 shows a cross section of part of the configuration (the cabinet 10A, the rib 14, the gasket 23, and the slit portion 40). FIG. 5 is a perspective view showing an example of the speaker 100A according to the second embodiment. FIG. 5 shows the cabinet 10A and the speaker unit 20A as seen from different angles. Also, FIG. 5 omits part of the side wall 12 so that the interior of the cabinet 10A can be seen.

[0030] As shown in FIGS. 4 and 5, the speaker 100A includes a cabinet 10A and a speaker unit 20A. The cabinet 10A has a cover portion 11, a side wall 12, and a rib 14. The configurations of the cover portion 11 and the side wall 12 are the same as those of the first embodiment. In this embodiment, the cabinet 10A differs from the cabinet 10 of the above embodiment in that it has a rib 14. The speaker unit 20A also differs from the first embodiment in that a slit portion is not provided in the gasket 23. The other configurations of the speaker unit 20A are the same as those of the first embodiment.

[0031] The rib 14 is provided on the inner surface 11s of the cover part 11. The rib 14 protrudes from the inner surface 11s towards the speaker unit 20A. The rib 14 is arranged so as to surround the sound emission hole 13. The rib 14 comes into contact with the lower end 23a of the gasket 23 of the speaker unit 20A. The contact between the rib 14 and the lower end 23a of the gasket 23 seals the gap between the cover part 11 and the speaker unit 20A. In this example, the rib 14 and the gasket 23 form a sealing part. The provision of the rib 14 allows the speaker unit 20A to be positioned with a gap of the height of the rib 14 between it and the inner surface 11s of the cover part 11.

[0032] The rib 14 has a slit portion 40. The slit portion 40 is provided from the inner peripheral portion 14b to the outer peripheral portion 14c of the rib 14 so as to communicate the inside and outside of the portion surrounded by the rib 14. The slit portion 40 is formed, for example, in the base portion 14d of the rib 14. Note that the slit portion 40 may be formed over the entire height direction of the rib 14 from the base portion 14d to the upper end portion 14a.

[0033] The slits 40 are formed so as to cross the direction in which the ribs 14 extend. Furthermore, the slits 40 are formed along the horizontal direction when the speaker is installed. Furthermore, the slits 40 are formed in a lateral direction relative to the penetration direction of the sound emission holes 13 when the speaker is installed.

[0034] The slit portions 40 are provided at a plurality of positions on the rib 14. For example, the slit portions 40 can be arranged at two positions spaced 180° apart around the central axis AX of the speaker 100A. Note that the number of slit portions 40 is not limited to the above example, and they may be arranged at three or more positions.

[0035] When water W (see FIG. 4) enters the outer portion K2 inside the cabinet 10A, the inclination of the peripheral portion 11b causes the water to flow from the peripheral portion 11b toward the central portion 11a. When this water reaches the ribs 14, it passes through the slits 40 formed in the ribs 14 and reaches the inner portion K1. The water W that has reached the inner portion K1 is discharged to the outside of the cabinet 10A through the sound output holes 13. Furthermore, for example, when sound is output from the speaker 100A, the diaphragm 22 vibrates. The pressure generated by the vibration of the diaphragm 22 promotes the water W that has reached the inner portion K1 of the cabinet 10A to be discharged to the outside through the sound output holes 13.

[0036] As described above, speaker 100A according to this embodiment comprises cabinet 10A having cover portion 11 with sound emission holes 13, speaker unit 20A housed in cabinet 10A, rib 14 which is a sealing portion arranged to surround sound emission holes 13 and seal between cover portion 11 and speaker unit 20A, and slit portion 40 which is arranged from inner peripheral portion 14b to outer peripheral portion 14c of rib 14 so as to communicate the inside and outside of the portion surrounded by rib 14.

[0037] According to this configuration, slits 40 are provided in ribs 14 that seal between cover 11 and speaker unit 20A inside cabinet 10A, allowing water that has entered the interior of cabinet 10A to be discharged from slits 40 through sound emission holes 13. In this way, slits 40 for discharging water can be provided in a manner that is not visible from the outside, preventing deterioration of the appearance. Furthermore, even if water gets on cabinet 10A from the outside, it is possible to prevent water from entering outer portion K2 and other parts of the interior of cabinet 10A.

[0038] In the speaker 100A according to this embodiment, the sealing portion includes a rib 14 provided on the cabinet 10A, and the slit portion 40 is provided on the rib. With this configuration, water that has entered the cabinet 10A can be appropriately guided to the sound output hole 13.

[0039] The technical scope of the present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit of the present invention. For example, in the above-described second embodiment, the slit portion 40 is provided in the rib 14, which is the sealing portion, but the present invention is not limited to this.

[0040] Fig. 6 is an exploded perspective view showing a speaker according to another example. The speaker 100B shown in Fig. 6 has a cabinet 10B and a speaker unit 20B. The cabinet 10B has a configuration similar to that of the cabinet 10A described in the second embodiment. The speaker unit 20B has a configuration similar to that of the speaker unit 20 described in the first embodiment. That is, the speaker 100B has a slit portion 40 in the rib 14 of the cabinet 10B, and a slit portion 30 in the gasket 23 of the speaker unit 20B.

[0041] 6, the slit portion 40 and the slit portion 30 are provided at positions corresponding to each other in the circumferential direction. In this way, the slit portion may be provided in both the rib 14 and the gasket 23 that constitute the sealing portion. In this case, the circumferential positions of the slit portion 40 and the slit portion 30 do not need to correspond to each other. Note that the slit portion may be provided in the gasket 23, not in the rib 14. [Explanation of symbols]

[0042] C...ceiling portion, K1...inner portion, K2...outer portion, W, Wa...water, AX...central axis, 10, 10A, 10B...cabinet, 11...cover portion, 11a...center portion, 11b...periphery portion, 11s...inner surface, 12...side wall, 13...sound emission hole, 14...rib, 14a...upper end portion, 14b, 23b...inner peripheral portion, 14c, 23c...outer peripheral portion, 14d...base portion, 20, 20A, 20B...speaker unit, 21...vibration source, 22...diaphragm, 23...gasket, 23a...lower end portion, 30, 40...slit portion, 100, 100A, 100B...speaker

Claims

1. a cabinet having a cover portion provided with sound emission holes; a speaker unit housed in the cabinet; a sealing portion that is provided to surround the sound emission hole and seals the gap between the cover portion and the speaker unit; a slit portion provided from the inner periphery to the outer periphery of the sealing portion so as to communicate the inside and outside of the portion surrounded by the sealing portion; Equipped with The cover portion is inclined so as to become lower from the outer periphery toward the portion where the sound emission hole is provided when the speaker is installed. Speaker.

2. the sealing portion includes a gasket provided in the speaker unit, The slit portion is provided in the gasket.

2. The speaker according to claim 1.

3. the sealing portion includes a rib provided on the cabinet, The slit portion is provided in the rib.

2. The speaker according to claim 1.

4. The slits are provided at a plurality of positions on the sealing portion. The speaker according to any one of claims 1 to 3.

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