A wooden table active acoustic

Abstract

The utility model discloses a kind of wooden table active acoustic, including wooden box, loudspeaker module and loudspeaker cover, the wooden box front end is equipped with loudspeaker module, the loudspeaker module outside is provided with the loudspeaker cover for protecting loudspeaker module, the wooden box includes side guard plate, frame, the frame is connected into the tubular body with left and right openings in layer, the tubular body left and right ends are respectively provided with side guard plate, sound absorption tooth is set in the frame inner measure.The utility model can break sound wave regular reflection path, suppress standing wave and resonance generation, while enhance low-frequency output capacity.

Description

Technical Field

[0001] This utility model relates to the technical field of audio equipment, and in particular to the technical field of a wooden desktop active audio system. Background Technology

[0002] In the field of audio equipment, sound quality is one of the core indicators that users are most concerned about, and the cabinet structure design, as a key factor affecting sound quality, has always been a key research direction in the industry. Traditional wooden speaker cabinets are mostly made by cutting six square boards and splicing them together with the edges fixed. Although this structure is simple to process, the flat inner wall of the cabinet causes sound waves radiated backward by the speaker to be regularly reflected on the inner wall of the cabinet. These reflected sound waves superimpose with the sound waves radiated from the front of the speaker and the sound waves reflected multiple times inside the cabinet, which can easily form standing waves. This results in sound pressure level peaks and troughs at specific frequency points, which in turn causes problems such as muddy and muffled mid-low frequencies, lack of bass layering, and masking of vocal and instrument details, seriously affecting the listening experience.

[0003] At the same time, traditional cabinet structures lack targeted acoustic optimization design, making it difficult to effectively suppress cabinet resonance, easily generating additional noise, and having limited enhancement effect on low frequency output, thus failing to meet users' high-quality demands for sound quality layering, fullness, and purity. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the existing technology by proposing a wooden desktop active speaker. This invention solves the problem that the flat inner wall of the traditional square board splicing cabinet causes the sound waves radiated from the back of the speaker to form regular reflections, which superimpose with the sound waves from the front and the multiple reflections inside the cabinet to form standing waves, resulting in muddy and muffled mid-low frequencies, and masking the details of vocals and instruments.

[0005] To achieve the above objectives, this utility model proposes a wooden desktop active speaker, comprising a wooden cabinet, a speaker module, and a speaker cover. The speaker module is fixedly mounted on the front end of the wooden cabinet, and a speaker cover is provided on the outside of the speaker module to protect it. The wooden cabinet comprises side panels and a frame, the frame being stacked and connected to form a cylindrical body with openings on the left and right sides. Side panels are respectively provided at the left and right ends of the cylindrical body, and sound-absorbing teeth are provided on the inner side of the frame. Preferably, the frames are connected by adhesive. Preferably, the cylindrical body is connected to the side guard plate by nails. Preferably, the frame and the side guard plate are respectively provided with guide holes, and guide rods for aligning the edges of the frame and the side guard plate are provided in the guide holes. Preferably, the wooden box is provided with a sound quality enhancement cavity for improving sound quality, and the sound quality enhancement cavity is formed by layers of partition strips arranged on the frame. Preferably, the frame includes an upper border, a middle border, and a lower border. The upper border and the lower border are U-shaped, and the openings of the upper border and the lower border are arranged opposite to each other. A middle border is provided between the upper border and the lower border.

[0006] The beneficial effects of this utility model are as follows: By adopting a frame layering and splicing structure, combined with acoustic optimization components such as sound-absorbing teeth and sound quality enhancement cavity, this utility model breaks the regular reflection path of sound waves, suppresses the generation of standing waves and resonance, and enhances low-frequency output capability. It adopts a split-frame design to reduce material waste, balancing sound quality improvement with production economy, and providing users with a better audio experience. Attached Figure Description

[0007] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features, wherein: Figure 1 This is a three-dimensional schematic diagram of a wooden desktop active speaker according to the present invention; Figure 2 This is an exploded view of a wooden desktop active speaker according to the present invention. Figure 3 This is an exploded view of the wooden box. Figure 4 This is a schematic diagram of the sound enhancement cavity; Figure 5 This is a three-dimensional schematic diagram of the spacer bar and sound-absorbing teeth; Figure 6 This is an exploded view of the frame.

[0008] In the diagram: 1-Wooden box, 11-Side panel, 12-Frame, 121-Top frame, 122-Middle frame, 123-Bottom frame, 13-Guide rod, 14-Sound enhancement cavity, 15-Spacer strip, 16-Sound absorbing teeth, 2-Speaker module, 3-Speaker cover. Detailed Implementation

[0009] See Figure 1 , Figure 2 and Figure 3This utility model discloses a wooden desktop active speaker, comprising a wooden cabinet 1, a speaker module 2, and a speaker cover 3. The speaker module 2 is fixedly mounted on the front end of the wooden cabinet 1, and a speaker cover 3 is provided on the outside of the speaker module 2 to protect it. The wooden cabinet 1 includes side panels 11 and a frame 12. The frame 12 is stacked and connected to form a cylindrical body with openings on the left and right sides. Side panels 11 are respectively provided at the left and right ends of the cylindrical body. Sound-absorbing teeth 16 are provided on the inner side of the frame 12. Traditionally, the wooden cabinet 1 is made by cutting the board into square panels and fixing them with the edges of the six panels. Because the board surface is relatively flat, sound is reflected. When the speaker is working, the sound waves will radiate in both forward and backward directions. The sound waves radiated backward will hit the inner wall of the cabinet and be reflected. These reflected sound waves, together with the sound waves radiated from the front of the speaker and the sound waves reflected multiple times inside the cabinet, will superimpose and form standing waves inside the cabinet. Standing waves generate sound pressure peaks and troughs at specific frequencies, causing these frequencies to be excessively amplified or attenuated during audio playback. This manifests as muddy and muffled mid-low frequencies, a lack of bass layering, and masking of vocal and instrument details. To address this issue, the board material is cut into a frame shape, and the frame 12 is glued and fixed in the left and right directions. Teeth are cut into the inner side of the frame 12, and sound-absorbing teeth 16 can reflect sound in different directions, reducing the adverse effects of sound reflection. At the same time, different shapes can be cut into the inner side of the frame 12, ultimately creating cavities of different shapes for the wooden cabinet 1, which can better improve the sound. The special cavity design inside the speaker is one of the core means of improving sound effects. Its function is not simply to "amplify the sound," but to precisely improve the sound quality by optimizing the propagation, reflection, and damping characteristics of sound waves. The specific improvement effect and design logic are as follows: Targeted optimization of low-frequency performance. Common special cavities such as bass-reflex cavities (with bass reflex tubes) and transmission line cavities are designed to enhance the low-frequency extension and power. A bass-reflex enclosure uses a bass reflex port to reflect low-frequency sound waves radiated from the back of the speaker, which then superimpose in phase with the sound waves from the front, resulting in more concentrated low-frequency energy and a fuller, more powerful sound, while also expanding the low-frequency response range. A transmission-line enclosure, on the other hand, uses a long, narrow labyrinthine structure to extend the sound wave path and utilizes enclosure damping to dissipate excess resonance, resulting in cleaner low frequencies with less distortion. Conversely, a sealed enclosure without special design will have a relatively conservative low-frequency performance, making it more suitable for scenarios that prioritize sound purity. Suppressing standing waves and resonance, and reducing distortion, special enclosure shapes (such as asymmetrical polygons or curved inner walls) and zone designs can break the regular reflection paths of sound waves within the enclosure, preventing excessive superposition of standing waves at fixed frequency points and reducing the problem of muddy and muffled mid-low frequencies. Some high-end audio systems also incorporate partitions or damping layers within the enclosure to further reduce noise generated by enclosure resonance, making vocals and instrument details clearer. Adjusting the phase of sound waves enhances the sense of sound layering. Multi-unit speakers often have independent acoustic cavities designed for the tweeter, midrange, and woofer units to prevent sound waves of different frequency bands from interfering with each other inside the enclosure.This zoned design ensures that the sound waves of each unit are in phase, making the instrument positioning more accurate when playing complex music, and significantly enhancing the sense of layering and space in the sound field.

[0010] It should be noted that the frame bodies 12 are connected by adhesive, and the type of adhesive is wood glue. Since wood glue is widely used in the woodworking industry and is a well-known technology, it is understood that the cylindrical body and the side panel 11 are connected by nails. The cylindrical body and the side panel 11 can be fixedly connected by nails or adhesive, depending on the choice.

[0011] Specifically, such as Figure 3 As shown, guide holes are respectively provided on the frame 12 and the side guard plate 11. Guide rods 13 are installed in the guide holes to align the edges of the frame 12 and the side guard plate 11. The guide rods 13 can be made of metals with a certain strength, such as iron or copper, or bamboo, as long as they have sufficient strength and serve a guiding function during the assembly of the side guard plate 11 and the frame 12. Specifically, as... Figure 4 and Figure 5 As shown, the wooden box 1 is provided with a sound quality enhancement cavity 14 for improving sound quality. The sound quality enhancement cavity 14 is formed by layers of partition strips 15 set on the frame 12. The partition strips 15 can be set on the frame 12 as needed to form sound quality enhancement cavities 14 of different shapes in different positions. The specific setting depends on the experiment and needs. A suitable cavity can be equivalent to an "acoustic resonator", which can enhance the low frequency output capability of the speaker and make the low frequency sound more stable and full.

[0012] Specifically, such as Figure 6 As shown, the frame 12 includes an upper frame 121, a middle frame 122, and a lower frame 123. The upper frame 121 and the lower frame 123 are U-shaped, and their openings are opposite to each other. The middle frame 122 is located between the upper frame 121 and the lower frame 123. Because the frame 12 is stacked horizontally, dividing the frame 12 into an upper frame 121, a middle frame 122, and a lower frame 123 does not affect its practicality. During the cutting process of the board material, the larger the frame, the more material is wasted. In order to save material, the frame 12 is divided into an upper frame 121, a middle frame 122, and a lower frame 123, which are then spliced ​​together to form the required frame 12, thereby reducing material waste.

[0013] The working process of this utility model: This utility model discloses a wooden desktop active speaker. During operation, after the speaker is activated, the speaker module 2 receives the audio signal and vibrates, radiating sound waves in both forward and backward directions. The sound waves radiated from the front directly penetrate the speaker cover 3 and propagate into the external space, providing direct auditory output to the user. The sound waves radiated from the back enter the interior of the wooden cabinet 1. Unlike traditional flat inner walls, the sound-absorbing teeth 16 on the inner side of the cabinet have an irregular toothed structure that creates multi-directional reflections of the sound waves radiated from the back of the speaker module 2. This design breaks the regular reflection path of sound waves, avoids the concentrated superposition of sound waves reflected in a single direction, effectively weakens the basis for standing wave formation, and reduces the interference of sound wave reflections on the front sound waves, thus reducing the problems of muddiness and muffled sound in the mid-low frequencies. There are multiple options for the sound enhancement cavity 14, which can be selected according to specific needs. At the same time, the sound enhancement cavity 14 that matches the speaker and size can be tested during the experiment. There are various types of sound enhancement cavities 14, such as transmission line type cavities. The narrow labyrinth structure will extend the sound wave propagation path. The cavity damping consumes excess resonant energy, making the low frequency sound waves decay more quickly, avoiding low frequency tailing, and presenting a cleaner low frequency listening experience.

[0014] The wooden cabinet 1 is fixed by glue between the frame 12, the cylindrical body is connected to the side panel 11 by nails / glue, and the guide rod 13 positions the frame 12 and the side panel 11 to maintain the stability of the overall structure, avoid structural displacement caused by vibration that affects the acoustic effect, and ensure the continuous and stable operation of the speaker.

[0015] This utility model discloses a wooden desktop active speaker. By adopting a 12-layered frame structure and combining it with acoustic optimization components such as sound-absorbing teeth 16 and sound quality enhancement cavity 14, it breaks the regular reflection path of sound waves, suppresses standing waves and resonance, and enhances low-frequency output capability. The detachable frame 12 design reduces material waste, balances sound quality improvement and production economy, and provides users with a better audio experience.

[0016] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A wooden desktop active speaker, comprising a wooden enclosure, a speaker module, and a speaker cover, wherein the speaker module is fixedly mounted on the front end of the wooden enclosure, and a speaker cover is provided on the outside of the speaker module to protect the speaker module, characterized in that: The wooden box includes side panels and a frame. The frame is stacked and connected to form a cylindrical body with openings on the left and right. Side panels are respectively provided at the left and right ends of the cylindrical body, and sound-absorbing teeth are provided on the inner side of the frame.

2. The wooden desktop active speaker as described in claim 1, characterized in that: The frames are connected by adhesive.

3. A wooden desktop active speaker as described in claim 1, characterized in that: The cylindrical body is connected to the side guard plate by nails.

4. A wooden desktop active speaker as described in claim 1, characterized in that: Guide holes are provided on the frame and the side guard plate respectively, and guide rods are provided in the guide holes to align the edges of the frame and the side guard plate.

5. A wooden desktop active speaker as described in claim 1, characterized in that: The wooden box contains a sound quality enhancement cavity, which is formed by layers of partition strips arranged on the frame.

6. A wooden desktop active speaker as described in claim 1, characterized in that: The frame includes a top border, a middle border, and a bottom border. The top border and the bottom border are U-shaped, and the openings of the top border and the bottom border are opposite to each other. A middle border is provided between the top border and the bottom border.

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