A bass speaker

Abstract

The utility model discloses a bass speaker box relates to speaker box technical field, including box, the box is provided with installation cavity, first passageway, second passageway and third passageway, the loudspeaker is installed in the installation cavity, and the width of first passageway and second passageway gradually increases, forms the expansion structure similar to the horn, can efficient coupling in -house air vibration, significantly promote the radiation efficiency of low frequency sound wave, realize deeper bass diving and higher sound pressure level in the limited box space, and first passageway and second passageway are located installation cavity along the two sides of box width direction respectively, can effectively save space. Meanwhile, the width of third passageway in the intercommunication cavity along the box width direction is less than the diameter of loudspeaker, can carry out effective flow guiding and compression to the sound wave that loudspeaker sent, reduced the energy loss and turbulence in the propagation process of sound wave, this helps to improve the tone. First passageway and second passageway are equipped with a plurality of reinforcing ribs, can enhance the strength of box, reduce the harmful vibration of box.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and in particular to a subwoofer speaker. Background Technology

[0002] Currently, most common bass enhancement designs employ a bass reflex port structure. By creating a port in the cabinet, airflow between the inside and outside of the cabinet is coupled, improving low-frequency response. However, traditional bass reflex port structures suffer from insufficient low-frequency extension and limited sound pressure level. Furthermore, longer bass reflex ports require significant cabinet space, hindering miniaturization designs. Additionally, while internal cabinet reinforcement typically includes ribs, traditional solid ribs can impede sound wave propagation within the cabinet, leading to standing waves and interference, ultimately degrading sound quality. Therefore, it is necessary to design a novel structure that can more efficiently enhance low-frequency performance within a limited space, while simultaneously maintaining cabinet strength and acoustic performance. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a subwoofer that improves low-frequency response and enhances bass performance.

[0004] A subwoofer according to an embodiment of the present invention includes: The enclosure includes a mounting cavity, a first channel, and a second channel. The first channel and the second channel are located on opposite sides of the mounting cavity along the width direction of the enclosure. A speaker is mounted in the mounting cavity. There is a connecting cavity between the mounting cavity and the first and second channels. Along the length direction of the enclosure and in the direction away from the mounting cavity, the width of the first and second channels gradually increases. A third channel is provided in the connecting cavity. The width of the third channel along the width direction of the enclosure is smaller than the diameter of the speaker. The sound waves emitted by the speaker enter the first and second channels through the third channel. The first and second channels are provided with multiple reinforcing ribs.

[0005] A subwoofer according to an embodiment of the present invention has at least the following beneficial effects: This embodiment features a mounting cavity, a first channel, a second channel, and a third channel within the enclosure. The speaker is mounted in the mounting cavity. The widths of the first and second channels gradually increase, forming a horn-like expansion structure. This efficiently couples air vibrations inside and outside the enclosure, significantly improving the radiation efficiency of low-frequency sound waves. Within the limited enclosure space, it achieves deeper bass extension and higher sound pressure levels, overcoming the problems of insufficient low-frequency extension and limited sound pressure levels found in traditional bass reflex ports. Furthermore, the first and second channels are located on opposite sides of the mounting cavity along the width of the enclosure, effectively saving space and facilitating speaker miniaturization. Simultaneously, the third channel within the cavity has a width smaller than the speaker's diameter along the enclosure width, effectively guiding and compressing the sound waves emitted by the speaker. This allows the sound waves to enter the first and second channels more smoothly and efficiently, reducing energy loss and turbulence during propagation, improving sound quality, and reducing standing waves and distortion that may be caused by disordered sound wave reflections and interference. The first and second channels have multiple reinforcing ribs, enhancing enclosure strength, reducing harmful vibrations, and ensuring product durability.

[0006] According to some embodiments of the present invention, the housing is provided with a partition plate and a mounting plate. The mounting plate is used to mount the speaker. The partition plate is located on both sides of the mounting plate. The speaker includes a sound-emitting part, which is connected to the mounting plate. The mounting cavity and the partition plate surround each other to form the mounting cavity.

[0007] According to some embodiments of this utility model, two baffles are provided in the connecting cavity. The two baffles are located on both sides of the third channel and are inclined in the width direction of the box. The two baffles can form a funnel-shaped collecting cavity to guide low-frequency sound waves.

[0008] According to some embodiments of this utility model, stiffening plates are provided in the first and second channels, and the stiffening ribs are located inside the stiffening plates. The stiffening plates are parallel to the width direction of the box body to reduce interference with sound waves and reduce energy loss during sound wave propagation.

[0009] According to some embodiments of this utility model, the enclosure is equipped with an electrical box, which is located on the side of the mounting cavity away from the mounting plate, and the electrical box is connected to the mounting cavity to realize the electrical connection of the speaker.

[0010] According to some embodiments of this utility model, a connecting pipe is provided on the outer periphery of the electrical box. The connecting pipe connects to the mounting cavity and allows the mounting cavity to connect to the outside world, which can balance the air pressure in the mounting cavity and facilitate the outward propagation of low-frequency sound waves.

[0011] According to some embodiments of this utility model, the width of the third channel is defined as S, and the diameter of the speaker is defined as D, with the requirement that 1 / 4 ≤ S / D ≤ 1 / 3, in order to achieve good low-frequency sound wave guidance and compression.

[0012] According to some embodiments of this utility model, a first reinforcing plate is provided between the baffle and the inner sidewall of the box, which can reduce the resonance of the baffle and thus reduce sound pollution.

[0013] According to some embodiments of this utility model, a second reinforcing plate is provided between the baffle and the mounting plate, which helps to improve the connection strength between the mounting plate and the baffle, reduce the resonance of the mounting plate, and improve the installation stability of the speaker.

[0014] According to some embodiments of this utility model, the reinforcing ribs extend along the width direction of the housing to reduce the propagation resistance of low-frequency sound waves and reduce interference with low-frequency sound waves.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Fig. 1 This is a first cross-sectional view of a subwoofer enclosure according to an embodiment of the present invention; Fig. 2 This is a second cross-sectional view of a subwoofer enclosure according to an embodiment of the present invention; Fig. 3 This is a schematic diagram of the speaker in an embodiment of the present invention; Fig. 4 This is a third cross-sectional view of a subwoofer according to an embodiment of the present invention.

[0017] Figure label: Box body 100; first channel 101; second channel 102; third channel 103; connecting cavity 104; collecting cavity 105; baffle 106; partition plate 107; mounting plate 108; mounting cavity 109; speaker 110; sound-emitting part 111; stiffening plate 112; reinforcing rib 113; electrical box 114; connecting pipe 115; first reinforcing plate 116; second reinforcing plate 117. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figs. 1 to 4 A subwoofer enclosure according to an embodiment of the present invention includes an enclosure 100, in which an mounting cavity 109, a first channel, a second channel 102, and a third channel 103 are provided. A speaker 110 is mounted in the mounting cavity 109. The widths of the first channel and the second channel 102 gradually increase, forming an expansion structure similar to a horn, which can efficiently couple the air vibrations inside and outside the enclosure, significantly improving the radiation efficiency of low-frequency sound waves. It achieves deeper bass extension and higher sound pressure level within the limited space of the enclosure 100, overcoming the problems of insufficient low-frequency extension and limited sound pressure of traditional bass reflex tubes. Furthermore, the first channel and the second channel 102 are located on both sides of the mounting cavity 109 along the width direction of the enclosure 100, which can effectively save space and better realize the miniaturization of the speaker. Meanwhile, the width of the third channel 103 within the connecting cavity 104 along the width direction of the enclosure 100 is smaller than the diameter of the speaker 110. This allows for effective guidance and compression of the sound waves emitted by the speaker 110, enabling them to enter the first and second channels 102 more smoothly and efficiently. This reduces energy loss and turbulence during sound wave propagation, helps improve sound quality, and reduces standing waves and distortion that may be caused by disordered sound wave reflections and interference. The first channel and the second channel 102 are equipped with multiple reinforcing ribs 113, which enhance the strength of the enclosure 100, reduce harmful vibrations of the enclosure 100, and ensure the durability of the product.

[0023] Specifically, the enclosure 100 is provided with a partition plate 107 and a mounting plate 108. The mounting plate 108 is used to mount the speaker 110. The partition plate 107 is located on both sides of the mounting plate 108. The speaker 110 includes a sound-emitting part 111, which has a diaphragm capable of emitting sound waves. The sound-emitting part 111 is connected to the mounting plate 108 to ensure stable sound output. The mounting cavity 109 and the partition plate 107 surround and form the mounting cavity 109, so that the sound-emitting part 111 faces the inside of the mounting cavity 109, realizing the inverted installation of the speaker 110. This increases the reflection path of low-frequency sound waves, thereby effectively increasing the sound pressure of low-frequency sound waves. Furthermore, the baffles 106 are arranged inclined in the width direction of the enclosure 100. The two baffles 106 together form a funnel-shaped collecting cavity 105. The collecting cavity 105 is connected to the connecting cavity 104 through a third channel 103 between the two baffles 106, which can guide and converge sound waves and improve the sound wave transmission efficiency.

[0024] Furthermore, let S define the width of the third channel 103 and D define the diameter of the speaker 110. The relationship between them must satisfy: 1 / 4 ≤ S / D ≤ 1 / 3, meaning the ratio of the width of the third channel 103 to the diameter of the speaker 110 is between 1 / 4 and 1 / 3. Understandably, if S / D < 1 / 4, meaning the width of the third channel 103 is too narrow, the airflow resistance will increase significantly, resulting in substantial sound wave energy loss at the channel entrance. This not only reduces sound pressure output efficiency but may also cause turbulence and noise due to excessive airflow velocity, making the low-frequency response muddy and distorted, severely affecting sound quality. If S / D > 1 / 3, meaning the width of the third channel 103 is relatively large, an effective sound wave compression effect cannot be formed, weakening the guiding and converging effect on sound waves. This leads to unconcentrated low-frequency sound wave diffusion and reduced radiation efficiency, making it difficult to achieve sufficient sound pressure enhancement and low-frequency depth, thus weakening the enhancement effect of the horn-type expansion structure. By controlling the S / D ratio within the range of 1 / 4 to 1 / 3, an optimal balance can be achieved between sound wave transmission efficiency and airflow resistance. This ensures that the sound wave receives appropriate compression and acceleration when passing through the third channel 103, thereby improving energy transmission efficiency. It also avoids problems such as airflow disturbance or insufficient sound diffusion caused by the channel being too narrow or too wide. This helps to achieve a clear, powerful, and low-distortion low-frequency reproduction effect, while ensuring that the sound wave enters the subsequent first channel and second channel 102 smoothly and efficiently.

[0025] A first reinforcing plate 116 is provided between the baffle 106 and the inner wall of the enclosure 100 to suppress the vibration of the baffle 106 and reduce the pollution of low-frequency sound. Furthermore, a second reinforcing plate 117 is provided between the baffle 106 and the mounting plate 108 to enhance the connection strength between the mounting plate 108 and the baffle 106, reduce the resonance of the mounting plate 108, and improve the installation stability of the speaker 110.

[0026] Understandably, the first channel and the second channel 102 are also equipped with stiffening plates 112, and reinforcing ribs 113 are set inside the stiffening plates 112. The stiffening plates 112 are arranged parallel to the width direction of the enclosure 100, which can enhance the structure while reducing interference with sound wave propagation and reducing sound wave energy loss. Furthermore, the reinforcing ribs 113 extend along the width direction of the enclosure 100, which can minimize the obstruction to the direction of sound wave propagation and reduce interference with low-frequency sound waves.

[0027] It is understood that the enclosure 100 also includes an electrical box 114, which is located on the side of the mounting cavity 109 away from the mounting plate 108 and is connected to the mounting cavity 109 for accommodating the electrical connection components of the speaker 110. A connecting pipe 115 is provided on the outer periphery of the electrical box 114. In this embodiment, the connecting pipe 115 is preferably located on the upper and lower sides of the electrical box 114. The connecting pipe 115 connects the mounting cavity 109 to the outside of the enclosure 100, which can balance the internal air pressure of the mounting cavity 109 and facilitate the outward propagation of low-frequency sound waves.

[0028] In actual assembly, the enclosure 100 is typically assembled from multiple panels, including perimeter panels (not shown in the figure) and partitions located on the four sides and top and bottom sides. The two ends of the mounting plate 108 are fixed to the front of the mounting cavity 109 partitioned inside the enclosure 100 with screws, and the speaker 110 is fixed to the mounting plate 108 via its sound-emitting part 111. Partition plates 107 are connected to the left and right sides of the mounting plate 108 respectively. The partition plates 107, mounting plate 108, and the top and bottom plates of the enclosure 100 together form the mounting cavity 109. The connecting cavity 104 is located in front of the mounting cavity 109, and its internal collecting cavity 105 is formed by two inclined baffles 106 and the mounting plate 108. The baffles 106 are connected to the side wall of the enclosure 100 via a first reinforcing plate 116 and to the mounting plate 108 via a second reinforcing plate 117, ensuring the overall structural rigidity and acoustic stability.

[0029] The first channel and the second channel 102 are located on both sides of the enclosure 100 in the width direction. Multiple reinforcing ribs 113 extending along the width direction are provided inside each channel. These ribs 113 are embedded in the reinforcing plate 112, which enhances the structural strength of the channel and avoids significant interference with sound wave propagation. The electrical box 114 is located at the rear of the enclosure 100. It can accommodate power amplifier modules, wiring terminals, and other electrical components, and is connected to the speaker 110 in the mounting cavity 109 through wire holes.

[0030] This subwoofer achieves excellent low-frequency enhancement within a limited space through a special acoustic structural design. Sound waves emitted from the speaker 110 first propagate forward into the collection cavity 105, then are compressed and guided through the third channel 103, before entering the connecting cavity 104, the first channel, and the second channel 102. Because the first channel and the second channel 102 are expanded, the sound waves are enhanced during propagation and effectively radiate outside the enclosure. The design of the reinforcing ribs 113 and rib plates 112 ensures the rigidity of the enclosure 100 and reduces harmful vibrations while minimizing the impact on acoustic performance, thus achieving a balance between sound quality and structural strength.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A subwoofer, characterized in that, include: The enclosure includes a mounting cavity, a first channel, and a second channel. The first channel and the second channel are located on opposite sides of the mounting cavity along the width direction of the enclosure. A horn is mounted in the mounting cavity. A connecting cavity exists between the mounting cavity and the first and second channels. Along the length direction of the enclosure and in the direction away from the mounting cavity, the width of the first and second channels gradually increases. A third channel is provided within the connecting cavity. The width of the third channel along the width direction of the enclosure is smaller than the diameter of the horn. Sound waves emitted by the horn enter the first and second channels through the third channel. The first and second channels are provided with multiple reinforcing ribs.

2. A subwoofer according to claim 1, characterized in that, The enclosure is provided with a partition plate and a mounting plate. The mounting plate is used to mount the speaker. The partition plate is located on both sides of the mounting plate. The speaker includes a sound-emitting part, which is connected to the mounting plate. The mounting cavity and the partition plate surround each other to form the mounting cavity.

3. A subwoofer according to claim 2, characterized in that, The communicating cavity is provided with two baffles, which are located on both sides of the third channel and are inclined in the width direction of the box. The two baffles can form a funnel-shaped collection cavity.

4. A subwoofer according to claim 1, characterized in that, The first channel and the second channel are provided with stiffening plates, and the stiffening ribs are located inside the stiffening plates, which are parallel to the width direction of the box body.

5. A subwoofer according to claim 2, characterized in that, The enclosure is equipped with an electrical box, which is located on the side of the mounting cavity away from the mounting plate, and the electrical box is connected to the mounting cavity.

6. A subwoofer according to claim 5, characterized in that, The outer periphery of the electrical box is provided with a connecting pipe, which connects to the mounting cavity and allows the mounting cavity to be connected to the outside.

7. A subwoofer according to claim 6, characterized in that, Define the width of the third channel as S and the diameter of the speaker as D, with the requirement that 1 / 4 ≤ S / D ≤ 1 / 3.

8. A subwoofer according to claim 3, characterized in that, A first reinforcing plate is provided between the baffle and the inner wall of the box.

9. A subwoofer according to claim 3, characterized in that, A second reinforcing plate is provided between the baffle and the mounting plate.

10. A subwoofer according to claim 1, characterized in that, The reinforcing ribs extend along the width direction of the box body.

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