A horn sound cavity structure

Abstract

This utility model discloses a speaker sound outlet cavity structure, including a sound outlet cavity, a speaker, and a pad. The speaker is installed at the upper end of the sound outlet cavity, and the pad is installed at the lower end of the sound outlet cavity. The upper side of the pad has several spaced-apart recesses. One side of the sound outlet cavity has a sound outlet. The speaker and the pad are vertically opposite each other, with the speaker's sound output direction facing the upper side of the pad. The sound emitted by the speaker is reflected by the upper side of the pad and the recesses of the pad before being output from the sound outlet. This utility model can further improve sound loudness and bass effect, and can make the emitted sound have a stereo surround sound effect.

Description

Technical Field

[0001] This utility model relates to the field of sound-generating structure technology for electronic products, and in particular to a speaker sound-emitting cavity structure. Background Technology

[0002] Currently, electronic products such as voice recorders, smartwatches, and smart glasses require speakers to play audio files. The most common speaker installation method is to create a sound outlet in the product's casing and then install the speaker inside the outlet, with the sound output directly facing the outlet. However, due to the limited internal space of these products, speakers installed this way are often quite small, resulting in lower volume, poor stereo imaging, and weak bass.

[0003] With technological advancements, those skilled in the art have designed acoustic cavity structures within consumer electronics products such as voice recorders, smartwatches, and smart glasses. These structures include a sound-emitting cavity, a flattened speaker mounted on top of it, and a sound outlet on one side of the cavity. The speaker's sound output direction faces inwards from the cavity, and the sound emitted is reflected by the cavity before exiting through the outlet. This type of acoustic cavity structure allows for larger flattened speakers, increasing loudness. The sound-emitting cavity reflects sound, further amplifying it and enhancing bass response. However, the sound-reflecting surface of the cavity is planar, resulting in a one-dimensional sound wave from the speaker, lacking multi-point reflection and thus failing to create a sense of surround sound. Utility Model Content

[0004] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing a speaker sound cavity structure that can further improve the loudness and bass effect of the sound and make the emitted sound have a stereo surround sound effect.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a speaker sound outlet cavity structure, including a sound outlet cavity, a speaker, and a pad. The speaker is installed at the upper end of the sound outlet cavity, and the pad is installed at the lower end of the sound outlet cavity. The upper side of the pad is provided with a plurality of spaced recesses. One side of the sound outlet cavity is provided with a sound outlet. The speaker and the pad are vertically opposite each other, and the sound outlet direction of the speaker is towards the upper side of the pad. The sound emitted by the speaker is reflected by the upper side of the pad and the recesses of the pad, and then output from the sound outlet.

[0006] In the above technical solution, the recesses are evenly arranged on the upper side of the pad, and the bottom surface of the recesses is shaped like a spherical cap, a hemispherical surface, or an arc surface. Preferably, the overall shape of the horn and the pad is square, and the recesses are arranged in 5-7 rows, with 4-6 recesses in each row.

[0007] In the above technical solution, there is a sound outlet space between the speaker and the pad, and the sound outlet is connected to the sound outlet space. Preferably, the upper side of the pad near the sound outlet is a downward sloping surface, and the sound outlet is an upward sloping outlet from the inside to the outside.

[0008] In the above technical solution, the speaker sound outlet cavity structure further includes a plastic lower shell, a plastic upper shell, and an EVA damping pad. The plastic upper shell and the plastic lower shell are fitted together, the sound outlet cavity is integrally formed and connected to the plastic lower shell, and the EVA damping pad is tightly installed between the inner wall of the plastic upper shell and the speaker.

[0009] In the above technical solution, the upper end of the sound outlet cavity is provided with a horn mounting groove, the outer periphery of the horn is mounted on the horn mounting groove, and the lower side of the pad is bonded to the bottom surface of the sound outlet cavity.

[0010] In the above technical solution, a stainless steel mesh is installed at the outer end of the sound outlet, and a waterproof and dustproof mesh is installed on the inner side of the stainless steel mesh.

[0011] The beneficial effects of this utility model are as follows: Because this utility model has a sound outlet cavity and a pad, the speaker is installed at the upper end of the sound outlet cavity, and the pad is installed at the lower end of the sound outlet cavity. The upper side of the pad has several spaced-apart recesses. The sound emitted by the speaker is reflected by the upper side of the pad and the recesses of the pad before being output from the sound outlet. Therefore, on the one hand, the pad can reduce the space at the lower end of the sound outlet cavity, making the emitted sound louder and having a sound amplification function, improving the loudness and bass effect; on the other hand, the recesses on the upper side of the pad can reflect and amplify the emitted sound, giving the emitted sound a three-dimensional surround sound effect, while also having a further sound amplification function. Attached Figure Description

[0012] Figure 1 This is a diagram showing the dispersed structure of the speaker's sound outlet cavity.

[0013] Figure 2 This is a longitudinal sectional view of the speaker's sound outlet cavity structure.

[0014] Figure 3 This is a structural diagram of the pad block. Detailed Implementation

[0015] The structural and working principles of this utility model will be further described in detail below with reference to the accompanying drawings.

[0016] like Figures 1-3As shown, this utility model is a speaker sound outlet cavity structure. In this embodiment, the speaker sound outlet cavity structure is applied to a voice recorder. However, this speaker sound outlet cavity structure is not limited to voice recorders and can also be applied to other consumer electronic products. The speaker sound outlet cavity structure of this utility model includes a sound outlet cavity 1, a speaker 2, and a pad 3. The speaker 2 is installed at the upper end of the sound outlet cavity 1, and the pad 3 is installed at the lower end of the sound outlet cavity 1. The upper side of the pad 3 has several spaced recesses 31. A sound outlet 4 is provided on one side of the sound outlet cavity 1. The speaker 2 and the pad 3 are vertically opposite each other, and the sound output direction of the speaker 2 is towards the upper side of the pad 3. The sound emitted by the speaker 2 is reflected by the upper side of the pad 3 and the recesses 31 of the pad 3, and then output from the sound outlet 4. Preferably, the pad 3 is a rubber pad. The pad 3 of this utility model can reduce the space at the lower end of the sound outlet cavity 1, making the emitted sound louder, having a sound amplification function, and improving the loudness and bass effect; on the other hand, see... Figure 2 The arrows reflecting the sound in the recess 31, the recess 31 on the upper side of the pad 3 can make the sound reflected and amplified, so that the sound has a three-dimensional surround sound, and at the same time has a further sound amplification function.

[0017] like Figures 1-3 As shown, the recesses 31 are evenly arranged on the upper side of the pad 3, and the bottom surface of the recesses 31 is shaped like a spherical crown, a hemispherical surface, or an arc surface. Using crown-shaped, hemispherical, or arc-shaped recesses makes the surface of the recesses regular, the reflection uniform, and the three-dimensional surround effect better. Preferably, the overall shape of the horn 2 and the pad 3 is square, and the recesses 31 are arranged in 5-7 rows, with 4-6 recesses in each row.

[0018] like Figure 1 and Figure 2 As shown, a sound outlet space 5 exists between the speaker 2 and the pad 3, and the sound outlet 4 is connected to the sound outlet space 5. Preferably, the upper side of the pad 3 near the sound outlet 4 is a downwardly sloping surface 32, and the sound outlet 4 is an upwardly sloping outlet from the inside out. The sloping surface 32 structure of the pad 3 makes the end of the sound outlet space 5 away from the sound outlet 4 narrower, while the end of the sound outlet 4 near the sound outlet 4 is wider, making the entire sound outlet space 5 horn-shaped, which can further amplify the sound.

[0019] like Figure 1 and Figure 2As shown, the speaker sound outlet cavity structure also includes a plastic lower shell 8, a plastic upper shell 7, and an EVA damping pad 6. The plastic upper shell 7 and the plastic lower shell 8 are fitted together, and the sound outlet cavity 1 is integrally formed and connected to the plastic lower shell 8. The EVA damping pad 6 is tightly installed between the inner wall of the plastic upper shell 7 and the speaker 2. The EVA damping pad 6 is interference-fitted with both the plastic upper shell 7 and the speaker 2. The EVA damping pad 6 reduces the vibration of the speaker 2 and makes the speaker 2 more stable.

[0020] like Figure 1 and Figure 2 As shown, the upper end of the sound outlet cavity 1 is provided with a speaker mounting groove 11. The outer periphery of the speaker 2 is mounted on the speaker mounting groove 11, and the lower side of the pad 3 is bonded to the bottom surface of the sound outlet cavity 1.

[0021] like Figure 1 and Figure 2 As shown, a stainless steel mesh 9 is installed at the outer end of the sound outlet 4, and a waterproof and dustproof mesh cloth 10 is installed on the inner side of the stainless steel mesh 9, which has the function of waterproofing and dustproofing.

[0022] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.

Claims

1. A speaker sound outlet cavity structure, characterized in that: The device includes a sound outlet cavity (1), a speaker (2), and a pad (3). The speaker (2) is installed at the upper end of the sound outlet cavity (1), and the pad (3) is installed at the lower end of the sound outlet cavity (1). The upper side of the pad (3) is provided with several recesses (31) arranged at intervals. The sound outlet cavity (1) is provided with a sound outlet (4) on one side. The speaker (2) and the pad (3) are vertically opposite each other. The sound output direction of the speaker (2) is towards the upper side of the pad (3). The sound emitted by the speaker (2) is reflected by the upper side of the pad (3) and the recesses (31) of the pad (3) and then output from the sound outlet (4).

2. The speaker sound outlet cavity structure according to claim 1, characterized in that: The pits (31) are evenly arranged on the upper side of the pad (3), and the bottom surface of the pits (31) is shaped like a spherical crown, a hemispherical surface, or an arc surface.

3. The speaker sound outlet cavity structure according to claim 2, characterized in that: The overall shape of the horn (2) and the pad (3) is square, and the recess (31) is provided in 5-7 rows, with 4-6 in each row.

4. The speaker sound outlet cavity structure according to claim 1, characterized in that: There is a sound outlet space (5) between the speaker (2) and the pad (3), and the sound outlet (4) is connected to the sound outlet space (5).

5. The speaker sound outlet cavity structure according to claim 4, characterized in that: The upper side of the pad (3) near the sound outlet (4) is a downward sloping surface (32), and the sound outlet (4) is an upward sloping outlet from the inside to the outside.

6. The speaker sound outlet cavity structure according to claim 1, characterized in that: It also includes a plastic lower shell (8), a plastic upper shell (7) and an EVA damping pad (6). The plastic upper shell (7) and the plastic lower shell (8) are fitted together. The sound outlet cavity (1) is integrally formed and connected to the plastic lower shell (8). The EVA damping pad (6) is tightly installed between the inner wall of the plastic upper shell (7) and the speaker (2).

7. The speaker sound outlet cavity structure according to claim 1, characterized in that: The upper end of the sound outlet cavity (1) is provided with a horn mounting groove (11), the outer periphery of the horn (2) is mounted on the horn mounting groove (11), and the lower side of the pad (3) is bonded to the bottom surface of the sound outlet cavity (1).

8. The speaker sound outlet cavity structure according to any one of claims 1-7, characterized in that: A stainless steel mesh (9) is installed at the outer end of the sound outlet (4), and a waterproof and dustproof mesh cloth (10) is installed on the inner side of the stainless steel mesh (9).

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