sound box
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAQIN TECH CO LTD
- Filing Date
- 2026-03-27
- Publication Date
- 2026-06-26
Smart Images
Figure CN122294030A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electroacoustic technology, and more particularly to a speaker. Background Technology
[0002] Waterproofing and high-quality bass performance are core user needs and product selling points for outdoor speakers. Bass imparts a full, rich, and dynamic feel to music. However, the miniaturization trend in electronic products has increased the difficulty of bass enhancement for outdoor speakers, while outdoor environments require waterproofing. Existing physical bass enhancement technologies mainly include passive radiators, bass reflex ports, acoustic superstructures, labyrinth enclosures, and bandpass designs. However, passive radiators are expensive, and bass reflex ports, acoustic superstructures, labyrinth enclosures, and bandpass designs lack waterproofing, limiting their application scenarios. It's easy to think of waterproofing these bass enhancement structures by attaching waterproof and breathable acoustic membranes to the sound inlets or outlets; however, this significantly weakens the bass enhancement effect. Therefore, there is an urgent need to develop a speaker that balances waterproofing and high-quality bass enhancement. Summary of the Invention
[0003] To address at least one of the problems mentioned in the background art, this application provides a speaker that can achieve both bass enhancement and waterproofing.
[0004] To achieve the above objectives, this application provides the following technical solution:
[0005] This application provides a speaker, including:
[0006] Box;
[0007] The loudspeaker, housed within an enclosure, includes a diaphragm;
[0008] A support plate is placed over the first end of the cabinet, and the support plate has multiple rear cavity sound outlet holes;
[0009] A waterproof layer is installed on the side of the support plate facing the inside of the box.
[0010] A partition is installed inside the box, forming a buffer cavity between the inner wall of the box, the waterproof layer, and the partition.
[0011] The bass enhancement structure is located inside the cabinet and includes an acoustic channel. The rear cavity of the speaker cabinet is formed between the partition, the inner wall of the cabinet, and the back of the diaphragm. The acoustic channel connects the buffer cavity and the rear cavity.
[0012] As an optional implementation, it also includes an adhesive backing layer, which is disposed between the waterproof layer and the support plate, and has multiple through holes that correspond one-to-one with and communicate with the sound outlet holes of the rear cavity.
[0013] As an optional implementation, the waterproof layer is a microporous waterproof membrane or a non-porous hydrophilic waterproof membrane.
[0014] As an alternative implementation, the shape of the box can be a cylinder, cuboid, cube, or regular hexagon.
[0015] As an alternative implementation, the back of the diaphragm faces the waterproof layer, the bass enhancement structure is a bass reflex port, the bass reflex port is located in the rear cavity, and one end of the bass reflex port is connected to the partition.
[0016] As an optional implementation, the front cavity of the speaker is formed between the partition, the inner wall of the enclosure, and the front of the diaphragm. The bass enhancement structure is a bass reflex port. Both the front and rear cavities are equipped with bass reflex ports. The bass reflex port in the front cavity connects the front cavity and the buffer cavity, and the bass reflex port in the rear cavity connects the rear cavity and the buffer cavity.
[0017] As an optional implementation, it also includes a cover plate, which is disposed on the second end of the cabinet. The front cavity of the speaker is formed between the cover plate, the front of the diaphragm, and the inner wall of the cabinet. Multiple front cavity sound outlet holes are provided on the cover plate or the inner wall of the front cavity. The first end and the second end of the cabinet are the opposite ends of the cabinet.
[0018] As an alternative implementation, the bass enhancement structure is an acoustic superstructure, which is located in the rear cavity and connected to the partition.
[0019] As an alternative implementation, the acoustic channels of the acoustic superstructure are in the shape of an Archimedean spiral.
[0020] As an alternative implementation, the bass enhancement structure is a labyrinth enclosure, which is located in the rear cavity and connected to the partition.
[0021] The speaker provided in this application features a support plate that supports the waterproof layer, preventing noise caused by vibration of the waterproof layer when sound waves pass through it. The buffer cavity provides a larger space for the waterproof layer, increasing its coverage area and allowing bass sound waves to disperse within the buffer cavity before contacting the waterproof layer, thus avoiding significant attenuation caused by concentrated sound waves penetrating a small area of the waterproof layer. Simultaneously, because the buffer cavity connects to the acoustic channel in the rear cavity, bass sound waves from the back of the diaphragm enter the buffer cavity via the rear cavity and acoustic channel, further optimizing bass propagation. The waterproof layer effectively prevents water from entering through the sound outlet of the rear cavity of the support plate, ensuring the speaker's waterproof performance. Furthermore, the waterproof layer also blocks the outward propagation of airflow noise generated within the acoustic channel. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of a first overall structure of a speaker provided in an embodiment of this application;
[0024] Figure 2 for Figure 1 The first type of sectional view;
[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 for Figure 1 The second type of sectional view;
[0027] Figure 5 This is a schematic diagram of a second overall structure of a speaker provided in an embodiment of this application;
[0028] Figure 6 for Figure 5 A sectional view;
[0029] Figure 7 This is a schematic diagram of a third overall structure of a speaker provided in an embodiment of this application;
[0030] Figure 8 for Figure 7 A sectional view;
[0031] Figure 9 A schematic diagram of an acoustic superstructure for bass enhancement structure in a speaker provided in an embodiment of this application;
[0032] Figure 10 for Figure 9 The acoustic channel of the acoustic superstructure in the diagram is in the shape of an Archimedean spiral;
[0033] Figure 11 A schematic diagram of a labyrinth enclosure for the bass enhancement structure in a speaker provided in an embodiment of this application;
[0034] Figure 12 This is a schematic diagram showing that both the front and rear cavities of the speaker provided in the embodiments of this application are equipped with bass reflex tubes.
[0035] Explanation of reference numerals in the attached figures:
[0036] 100. Speaker enclosure; 110. Cabinet; 111. Rear cavity; 112. Front cavity; 113. Buffer cavity; 120. Loudspeaker; 130. Support plate; 131. Rear cavity sound outlet; 140. Waterproof layer; 150. Partition plate; 160. Adhesive backing layer; 161. Through hole; 170. Bass reflex port; 180. Cover plate; 190. Front cavity sound outlet; 200. Acoustic superstructure; 210. Labyrinth cabinet; 220. Acoustic channel. Detailed Implementation
[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0038] In this application, the terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “lateral,” and “longitudinal” indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.
[0039] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0040] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0042] Waterproofing and high-quality bass performance are core user needs and product selling points for outdoor speakers. Bass imparts a full, rich, and dynamic feel to music. However, the miniaturization trend in electronic products has increased the difficulty of bass enhancement for outdoor speakers, while outdoor environments require waterproofing. Existing physical bass enhancement technologies mainly include passive radiators, bass reflex ports, acoustic superstructures, labyrinth enclosures, and bandpass designs. However, passive radiators are expensive, and bass reflex ports, acoustic superstructures, labyrinth enclosures, and bandpass designs lack waterproofing, limiting their application scenarios. It's easy to think of waterproofing these bass enhancement structures by attaching waterproof and breathable acoustic membranes to the sound inlets or outlets; however, this significantly weakens the bass enhancement effect. Therefore, there is an urgent need to develop a speaker that balances waterproofing and high-quality bass enhancement.
[0043] In view of this, this application provides a speaker enclosure in which a support plate supports the waterproof layer, preventing noise caused by vibration of the waterproof layer when sound waves pass through it. A buffer cavity provides a larger space for the waterproof layer, thereby increasing its coverage area. This allows bass sound waves to disperse within the buffer cavity before contacting the waterproof layer, preventing significant attenuation caused by concentrated sound waves penetrating a small area of the waterproof layer. The waterproof layer effectively prevents water from entering through the sound outlet hole in the rear cavity of the support plate, ensuring the speaker enclosure's waterproof performance. Simultaneously, the waterproof layer also blocks the propagation of airflow noise generated within the acoustic channel.
[0044] Figure 1 This is a schematic diagram of a first overall structure of a speaker provided in an embodiment of this application; Figure 2 for Figure 1 The first type of sectional view; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 1 The second type of sectional view; Figure 5 This is a schematic diagram of a second overall structure of a speaker provided in an embodiment of this application; Figure 6 for Figure 5 A sectional view; Figure 7 This is a schematic diagram of a third overall structure of a speaker provided in an embodiment of this application; Figure 8 for Figure 7 A sectional view; Figure 9 A schematic diagram of an acoustic superstructure for bass enhancement structure in a speaker provided in an embodiment of this application; Figure 10 for Figure 9 The acoustic channel of the acoustic superstructure in the diagram is in the shape of an Archimedean spiral; Figure 11 A schematic diagram of a labyrinth enclosure for the bass enhancement structure in a speaker provided in an embodiment of this application; Figure 12 This is a schematic diagram showing that both the front and rear cavities of the speaker provided in the embodiments of this application are equipped with bass reflex tubes.
[0045] You can refer to this. Figures 1 to 12 This application provides a speaker 100, including:
[0046] Box 110;
[0047] The loudspeaker 120 is disposed within the enclosure 110 and includes a diaphragm;
[0048] A support plate 130 is installed on the first end of the enclosure 110, and the support plate 130 has multiple rear cavity sound outlet holes 131.
[0049] A waterproof layer 140 is provided on the side of the support plate 130 facing the inside of the housing 110;
[0050] A partition 150 is disposed inside the housing 110, and a buffer cavity 113 is formed between the inner wall of the housing 110, the waterproof layer 140, and the partition 150.
[0051] The bass enhancement structure is located inside the enclosure 110 and includes an acoustic channel 220. The rear cavity 111 of the speaker 100 is formed between the partition 150, the inner wall of the enclosure 110, and the back of the diaphragm. The acoustic channel 220 connects the buffer cavity 113 and the rear cavity 111.
[0052] The speaker 100 provided in this embodiment of the application includes a support plate 130 that supports the waterproof layer 140, preventing noise caused by vibration of the waterproof layer 140 when sound waves pass through it. The buffer cavity 113 provides a larger placement space for the waterproof layer 140, thereby increasing its coverage area. This allows bass sound waves to disperse within the buffer cavity 113 before contacting the waterproof layer 140, preventing significant attenuation caused by concentrated sound waves penetrating a small area of the waterproof layer 140. The waterproof layer 140 effectively prevents water from entering through the rear cavity sound outlet 131 of the support plate 130, thus ensuring the speaker's waterproof performance. Simultaneously, the waterproof layer also blocks the outward propagation of airflow noise generated within the acoustic channel.
[0053] In the above embodiments, an adhesive backing layer 160 may also be included. The adhesive backing layer 160 is disposed between the waterproof layer 140 and the support plate 130. The adhesive backing layer 160 has a plurality of through holes 161 that correspond one-to-one with and are interconnected with the sound outlet holes 131 of the rear cavity. The adhesive layer 160 can stably and smoothly adhere the waterproof layer 140 to the support plate 130, and together with the support plate 130, it forms an overall support for the waterproof layer 140, preventing the waterproof layer 140 from shaking, wrinkling, or vibrating locally under the action of sound waves, thereby eliminating noise and abnormal sounds caused by irregular vibration of the waterproof layer 140. The through holes 161 on the adhesive layer 160 correspond one-to-one with the sound outlet holes 131 of the rear cavity of the support plate 130 and are interconnected, which can ensure the continuous and unobstructed sound wave transmission path, and prevent the sound waves from being blocked or the bass from being weakened due to the adhesive layer sealing or blocking the sound outlet holes, ensuring that the bass sound waves in the buffer cavity 113 radiate smoothly to the outside. The adhesive layer 160 can also form a uniform and sealed bonding interface between the waterproof layer 140 and the support plate 130, enhance the sealing of the edge of the waterproof layer 140, effectively prevent moisture from seeping into the cabinet 110 from the gap between the waterproof layer 140 and the support plate 130, and further improve the overall waterproof reliability of the speaker 100.
[0054] In the above embodiments, the waterproof layer 140 can be a microporous waterproof membrane or a non-porous hydrophilic waterproof membrane. Microporous waterproof membranes rely on nanopores on the membrane, smaller than water droplets but larger than water vapor, to achieve waterproofing and breathability. Their advantage is that they combine waterproofing with breathability / sound permeability, such as PTFE (polytetrafluoroethylene) microporous waterproof membranes and ePTFE (expanded polytetrafluoroethylene) waterproof and breathable membranes. Non-porous hydrophilic waterproof membranes lack micropores and rely on the hydrophilic groups of the material itself to conduct water vapor, resulting in better overall waterproof sealing, but lower breathability than microporous membranes, such as PU (polyurethane) hydrophilic waterproof membranes. This application does not limit the type of membrane used in the waterproof layer. Microporous and non-porous hydrophilic waterproof membranes can both block water to meet the waterproof requirements of outdoor speakers 100 and have sound transmission characteristics, ensuring that bass sound waves can pass through normally while blocking water. Combined with the fixed support structure of the adhesive layer 160 and the support plate 130, the acoustic design of the buffer cavity 113 and the acoustic channel 220, it can not only avoid noise generated by the vibration of the waterproof layer 140, but also disperse the sound wave pressure by increasing the coverage area of the waterproof layer 140, reducing the weakening of the bass enhancement effect, and further achieving a balance between waterproof performance and high-quality bass effect.
[0055] In the above embodiments, the enclosure 110 can be cylindrical, cuboid, cube, or hexagonal. These various regular geometric shapes can meet the needs of different outdoor use scenarios and appearance designs, and facilitate the assembly and positioning of internal components such as the support plate 130, partition 150, waterproof layer 140, and bass enhancement structure. This ensures the structural stability and acoustic consistency of the buffer cavity 113, rear cavity 111, and acoustic channel 220. At the same time, the regular shape helps to improve the overall structural strength and waterproof sealing of the enclosure 110, and adapts to the layout of the waterproof layer 140, adhesive layer 160, and support plate 130, further ensuring the stable realization of the speaker 100's waterproof performance, bass enhancement effect, and heat dissipation performance.
[0056] In the above embodiment, the back of the diaphragm can face the waterproof layer 140, the bass enhancement structure is a bass reflex port 170, the bass reflex port 170 is disposed in the rear cavity 111, and one end of the bass reflex port 170 is connected to the partition plate 150. It is understandable that the bass reflex port 170, as a directional acoustic channel 220 connecting the rear cavity 111 and the buffer cavity 113, can efficiently and orderly guide the bass sound waves generated on the back of the diaphragm into the buffer cavity 113, significantly improving the bass intensity and depth. The bass reflex port 170 is located in the rear cavity 111 and one end is connected to the partition plate 150, which can make full use of the internal space of the cabinet 110 to achieve a compact and miniaturized structure, adapting to the portability requirements of the outdoor speaker 100. At the same time, the partition plate 150 provides a stable installation position for the bass reflex port 170, ensuring that the acoustic channel 220 is accurately positioned and structurally robust, avoiding vibration displacement that affects the acoustic effect. This layout eliminates the need for a direct waterproof layer 140 on the bass reflex port 170. The waterproof layer 140 is stably supported by the support plate 130 and the adhesive layer 160 and achieves sound wave transition through the buffer cavity 113. This avoids the waterproof layer 140 directly blocking the opening of the bass reflex port 170, which would weaken the bass, and also prevents sound waves from directly impacting the waterproof layer 140 and generating vibration noise, ensuring bass purity.
[0057] like Figure 2 , Figure 4 as well as Figure 6 As shown, specifically, the bass reflex tube 170 is a tubular structure that can be integrally formed with the partition. The bass reflex tube 170 can be directly formed by the partition 150 protruding towards the speaker 120, or a portion of the tube wall of the bass reflex tube 170 can be formed by the side of the partition 150 protruding towards the speaker 120. This portion of the tube wall and the inner wall of the enclosure 110 form the bass reflex tube 170. The two ends of the bass reflex tube 170 are respectively connected to the buffer cavity 113 and the rear cavity 111.
[0058] In the above embodiment, a front cavity 112 of the speaker 100 can be formed between the partition 150, the inner wall of the enclosure 110, and the front surface of the diaphragm. The bass enhancement structure is a bass reflex port 170. Both the front cavity 112 and the rear cavity 111 are provided with bass reflex ports 170. The bass reflex port 170 in the front cavity 112 connects the front cavity 112 and the buffer cavity 113. The bass reflex port 170 in the rear cavity 111 connects the rear cavity 111 and the buffer cavity 113. It is understandable that when the diaphragm vibrates, low-frequency sound waves are generated in the front cavity 112 and in the rear cavity 111. The dual bass reflex tubes 170 respectively conduct the low-frequency sound waves from the front cavity 112 and the rear cavity 111 to the buffer cavity 113, so that the low-frequency sound waves from the front and rear cavities 111 are superimposed in the buffer cavity 113. Compared with the structure of a single bass reflex tube 170 that only conducts the sound waves from the rear cavity 111, the intensity and fullness of the low-frequency sound waves can be greatly enhanced, effectively expanding the low-frequency response range and solving the problem of thin and weak bass in the small outdoor speaker 100, which meets the demand for high-quality bass in outdoor scenarios.
[0059] Furthermore, the front cavity 112 and rear cavity 111 are symmetrically equipped with phase reversing tubes 170, both of which are connected to the buffer cavity 113. This allows for full utilization of the internal space of the enclosure 110, enabling the compact assembly of components such as the phase reversing tubes 170, partitions 150, waterproof layers 140, and adhesive backing layers 160 without increasing the volume of the enclosure 110. At the same time, one end of each phase reversing tube 170 in the front and rear cavities 111 is connected to the partition 150. The partition 150 can simultaneously provide stable support and positioning for both phase reversing tubes 170, ensuring that the phase reversing tubes 170 are firmly installed and preventing sound wave vibrations from causing the phase reversing tubes 170 to shift or loosen, thus ensuring the consistency of acoustic effects and structural reliability. Furthermore, both bass reflex tubes 170 are connected to the buffer cavity 113, rather than being directly connected to the outside. The waterproof layer 140 is fixed to the side of the support plate 130 facing the inside of the cabinet 110 through the adhesive layer 160, without directly covering the opening of any bass reflex tube 170. This completely avoids the bass attenuation problem caused by the waterproof layer 140 being directly attached to the inlet / outlet of the bass reflex tube 170 (bass enhancement structure) in the prior art. At the same time, the sound waves transmitted by the dual bass reflex tubes 170 are dispersed by the buffer cavity 113 and then transmitted through the through hole 161 of the adhesive layer 160 and the sound outlet hole 131 of the rear cavity of the support plate 130. The increased coverage area of the waterproof layer 140 can disperse the sound wave pressure and minimize the loss of bass effect by the waterproof structure. Reliable waterproofing is achieved through the cooperation of the waterproof layer 140 and the adhesive layer 160, and high-quality bass output is guaranteed through the synergistic effect of the dual bass reflex tubes 170 and the buffer cavity 113.
[0060] Furthermore, the front cavity 112 is composed of a partition 150, the inner wall of the cabinet 110, and the front of the diaphragm, while the rear cavity 111 is composed of a partition 150, the inner wall of the cabinet 110, and the back of the diaphragm. The dual bass reflex tubes 170 are embedded in the partition 150 to connect with the buffer cavity 113. The symmetry and sealing of the structural layout are better, which can effectively reduce the airflow exchange between the inside of the cabinet 110 and the outside. Combined with the waterproof layer 140 and the adhesive layer 160 to seal and protect the sound outlet 131 of the rear cavity of the support plate 130, it can more reliably prevent outdoor water and dust from entering the front cavity 112, the rear cavity 111, and the buffer cavity 113, avoiding damage to core components such as the speaker 120 and the bass reflex tubes 170 due to moisture, and significantly improving the outdoor adaptability and service life of the speaker 100.
[0061] like Figure 12 As shown, both the bass reflex tube in the front cavity and the bass reflex tube in the rear cavity can be formed by protruding from the side of the partition away from the buffer cavity. Both the bass reflex tube in the front cavity and the bass reflex tube in the rear cavity can be integrally formed with the partition, reducing processing costs. The loudspeaker is located between the bass reflex tube in the front cavity and the bass reflex tube in the rear cavity. The front of the loudspeaker diaphragm faces the bass reflex tube in the front cavity, and the back of the loudspeaker diaphragm faces the bass reflex tube in the rear cavity.
[0062] In the above embodiments, a cover plate 180 may also be included. The cover plate 180 is disposed on the second end of the enclosure 110. The front cavity 112 of the speaker 100 is formed between the cover plate 180, the front surface of the diaphragm, and the inner wall of the enclosure 110. The cover plate 180 or the inner wall of the front cavity 112 has a plurality of front cavity sound outlet holes 190. The first end and the second end of the enclosure 110 are opposite ends of the enclosure 110. The cover plate 180, disposed on the second end of the enclosure 110, can together with the front surface of the diaphragm and the inner wall of the enclosure 110 to form the front cavity 112. The plurality of front cavity sound outlet holes 190 on the cover plate 180 or the inner wall of the front cavity 112 can make the sound waves in the front cavity 112 radiate to the outside evenly and smoothly. At the same time, the layout of multiple sound outlet holes can avoid the concentrated attenuation of sound waves caused by a single sound outlet hole, improve the uniformity of sound wave propagation, and make the overall sound quality fuller and the layering clearer.
[0063] The front cavity sound outlet 190 and the rear cavity sound outlet 131 on the support plate 130 correspond to opposite ends of the cabinet 110, forming a symmetrical dual-sound outlet layout. The front cavity sound outlet 190 mainly radiates low, mid and high frequency sound waves directly generated on the front of the diaphragm, while the rear cavity sound outlet 131 mainly radiates bass sound waves transmitted through the rear cavity 111 bass reflex tube 170 and buffer cavity 113. The two sound waves superimpose to enhance the bass, solving the problems of insufficient bass power and limited coverage of the small outdoor speaker 100.
[0064] In the above embodiments, the bass enhancement structure can be an acoustic superstructure 200, which is disposed in the rear cavity 111 and connected to the partition 150. It is understood that the acoustic superstructure 200 possesses customizable acoustic characteristics. By rationally designing its internal cavity structure, size, and materials, the propagation path and resonance frequency of bass sound waves can be precisely controlled. Within the limited space of the rear cavity 111, it can achieve efficient amplification and frequency optimization of bass sound waves, effectively solving the technical pain points of thin bass, insufficient power, and narrow frequency response range caused by the size limitation of the small outdoor speaker 100. Simultaneously, the acoustic superstructure 200, disposed in the rear cavity 111 and connected to the partition 150, can fully utilize the space of the rear cavity 111, adapting to the layout of the diaphragm's back facing the waterproof layer 140. This allows the bass sound waves generated on the back of the diaphragm to directly act on the acoustic superstructure 200, and after optimization and amplification, are transmitted to the buffer cavity 113, further enhancing the bass's depth and penetration, meeting the core demand for high-quality bass in outdoor scenarios.
[0065] Secondly, the acoustic superstructure 200 is connected to the partition 150, which provides stable installation positioning and prevents the acoustic superstructure 200 from shifting or loosening due to sound wave vibration, thus ensuring the consistency of its acoustic performance. At the same time, the acoustic superstructure 200 can directionally guide and filter the bass sound waves in the rear cavity 111, effectively suppressing standing waves and noise caused by disordered sound wave reflection, reducing sound wave loss. Combined with the support plate 130 supporting the waterproof layer 140, it prevents abnormal noise caused by the vibration of the waterproof layer 140. After being optimized by the acoustic superstructure 200, the bass sound waves are smoothly radiated through the buffer cavity 113, the through hole 161 of the adhesive layer 160, and the sound outlet hole 131 of the rear cavity of the support plate 130, resulting in a purer overall sound quality and clearer layering.
[0066] Furthermore, the acoustic superstructure 200 can be integrated with the rear cavity 111 and the partition 150 layout according to the size of the rear cavity 111. The structure is compact and occupies little space, without the need to increase the volume of the cabinet 110. This perfectly matches the trend of miniaturization and portability of outdoor speaker 100. At the same time, the acoustic superstructure 200 is connected to the partition 150. During assembly, it can be fixed to the partition 150 first and then installed into the cabinet 110 as a whole, which simplifies the assembly process, reduces the difficulty of mass production, and has good compatibility with the regular geometric shape of the cabinet 110, such as cylinders and cuboids. It can achieve a compact layout of internal components (acoustic superstructure 200, partition 150, waterproof layer 140, adhesive backing layer 160, etc.) and improve the space utilization of the cabinet 110.
[0067] In the above embodiments, the acoustic channel 220 of the acoustic superstructure 200 can be in the shape of an Archimedean spiral. The Archimedean spiral-shaped acoustic channel 220 can maximize the extension of the sound wave conduction path within the limited space of the rear cavity 111. Compared with straight or simply curved channels, the longer conduction path allows the bass sound waves generated on the back of the diaphragm to fully resonate and superimpose within the channel, greatly improving the intensity and depth of the bass. At the same time, the uniform curvature of the spiral can guide the directional conduction of sound waves, effectively suppressing standing waves and sound wave reflection loss, optimizing the bass frequency response range, and solving the technical pain point of thin bass and insufficient penetration caused by the size limitation of the small outdoor speaker 100. This allows the small speaker 110 to also present a full and deep bass effect, meeting the listening needs of outdoor scenarios. Secondly, the Archimedes spiral is characterized by its compact structure and high space utilization. Its acoustic channel 220 can fit tightly against the inner wall of the rear cavity 111 and the partition 150 layout without occupying too much space in the cabinet 110, perfectly adapting to the trend of miniaturization and portability of outdoor speakers 100. At the same time, one end of the spiral channel can be tightly connected to the partition 150, which provides stable support. Combined with the overall assembly of the acoustic superstructure 200, it can effectively prevent the channel from shifting or loosening due to sound wave vibration, ensuring the structural stability of the acoustic channel 220. It also simplifies the assembly process, adapts to the regular geometric shapes of the cabinet 110 such as cylinders and cuboids, and improves the convenience of mass production.
[0068] In addition, depending on the needs, the acoustic channel 220 of the acoustic superstructure 200 can adopt a regular or irregular extended shape such as an S-shape, a broken line shape, a ring shape, or a gradually changing cross-section shape, in addition to the Archimedean spiral shape. There are no restrictions here.
[0069] In the above embodiments, the bass enhancement structure can be a labyrinth enclosure 210, which is disposed in the rear cavity 111 and connected to the partition 150. It can be understood that the tortuous acoustic channel 220 inside the labyrinth enclosure 210 can maximize the extension of the bass sound wave transmission path within the limited space of the rear cavity 111. The bass sound waves generated on the back of the diaphragm are repeatedly reflected, resonated, and superimposed within the labyrinth channel, which not only significantly improves the intensity and depth of the bass but also effectively expands the bass frequency response range and enhances the bass extension depth. This effectively solves the technical pain points of the small outdoor speaker 100, which suffers from thin, weak, and penetrating bass due to size limitations. Even with a small enclosure 110, a full and rich bass effect can be achieved, meeting the auditory needs of outdoor camping, cycling, and other scenarios.
[0070] Secondly, the labyrinth enclosure 210 can be customized according to the dimensions of the rear cavity 111, the layout of the partition 150, and the shape of the enclosure 110 (cylinder, cuboid, etc.). Its overall structure is compact and can be tightly fitted to the inner wall of the rear cavity 111 and the partition 150 without occupying too much space in the enclosure 110, which is in line with the trend of miniaturization and portability of outdoor speakers 100. At the same time, the labyrinth enclosure 210 is connected to the partition 150, which provides stable support and positioning for it, effectively preventing the labyrinth enclosure 210 from shifting or loosening due to sound wave vibration, and ensuring the structural stability and acoustic consistency of the acoustic channel 220. In addition, the labyrinth enclosure 210 can be integrated with the partition 150, simplifying the overall assembly process, reducing the difficulty of mass production, and improving product assembly efficiency and yield.
[0071] Furthermore, the labyrinth enclosure 210 is located inside the rear cavity 111, responsible only for the conduction and enhancement of bass sound waves from the rear cavity 111, and is not directly connected to the outside. Its acoustic channel 220 faces the buffer cavity 113, forming a reasonable layout with the waterproof layer 140, adhesive backing layer 160, and support plate 130, avoiding the significant bass attenuation problem caused by the waterproof layer 140 being directly attached to the bass enhancement structure's inlet / outlet ports in existing technologies. Simultaneously, the bass sound waves conducted by the labyrinth enclosure 210 are further... After resonance and dispersion, the sound waves radiate to the outside through the through-hole 161 of the adhesive layer 160 and the sound outlet 131 of the rear cavity of the support plate 130. Combined with the waterproof layer 140 with increased coverage area, the sound wave pressure can be effectively dispersed, minimizing the loss of bass enhancement effect due to the waterproof structure. Reliable waterproofing is achieved through the cooperation of the waterproof layer 140 and the adhesive layer 160, while the acoustic advantages of the labyrinth enclosure 210 ensure high-quality bass output, achieving a balance between waterproof performance and bass effect, and making it suitable for complex and humid outdoor environments.
[0072] like Figure 11 As shown, the labyrinth enclosure 210 can be formed by a labyrinth-shaped acoustic channel between the partition 150 and the inner wall of the enclosure 110. The acoustic channel has an inlet connected to the buffer cavity 113 and an outlet connected to the rear cavity 111, which can enhance the bass effect.
[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various implementations of this application.
Claims
1. A sound box, characterized in that, include: Box (110); A loudspeaker (120), disposed within the enclosure (110), includes a diaphragm; A support plate (130) is provided on the first end of the enclosure (110), and the support plate (130) has a plurality of rear cavity sound outlet holes (131). A waterproof layer (140) is provided on the side of the support plate (130) facing the inside of the box (110); A partition (150) is disposed inside the box (110), and a buffer cavity (113) is formed between the inner wall of the box (110), the waterproof layer (140) and the partition (150). A bass enhancement structure is disposed inside the enclosure (110) and includes an acoustic channel. The rear cavity (111) of the speaker (100) is formed between the partition (150), the inner wall of the enclosure (110), and the back of the diaphragm. The acoustic channel connects the buffer cavity (113) and the rear cavity (111).
2. The sound box of claim 1, wherein, It also includes an adhesive backing layer (160), which is disposed between the waterproof layer (140) and the support plate (130). The adhesive backing layer (160) has a plurality of through holes (161) that correspond one-to-one with and are interconnected with the rear cavity sound outlet hole (131).
3. The sound box of claim 2, wherein, The waterproof layer (140) is a microporous waterproof membrane or a non-porous hydrophilic waterproof membrane.
4. The sound box of claim 3, wherein, The box (110) is cylindrical, cuboid, cube or regular hexagonal in shape.
5. The speaker according to any one of claims 1-4, characterized in that, The back of the diaphragm faces the waterproof layer (140), the bass enhancement structure is a bass reflex port (170), the bass reflex port (170) is disposed in the rear cavity (111), and one end of the bass reflex port (170) is connected to the partition plate (150).
6. The speaker according to any one of claims 1-4, characterized in that, The front cavity (112) of the speaker (100) is formed between the partition (150), the inner wall of the enclosure (110), and the front surface of the diaphragm. The bass enhancement structure is a bass reflex port (170). Both the front cavity (112) and the rear cavity (111) are provided with the bass reflex port (170). The bass reflex port (170) in the front cavity (112) connects the front cavity (112) and the buffer cavity (113). The bass reflex port (170) in the rear cavity (111) connects the rear cavity (111) and the buffer cavity (113).
7. The sound box according to any one of claims 1-4, characterized in that, It also includes a cover plate (180) which covers the second end of the enclosure (110). The front cavity (112) of the speaker (100) is formed between the cover plate (180), the front side of the diaphragm and the inner wall of the enclosure (110). The cover plate (180) or the inner wall of the front cavity (112) has a plurality of front cavity sound outlet holes (190). The first end and the second end of the enclosure (110) are the opposite ends of the enclosure (110).
8. The sound box according to any one of claims 1-4, characterized in that, The bass enhancement structure is an acoustic superstructure (200), which is disposed in the rear cavity (111) and connected to the partition (150).
9. The sound box of claim 8, wherein, The acoustic channels of the acoustic superstructure (200) are in the shape of an Archimedean spiral.
10. The speaker according to any one of claims 1-4, characterized in that, The bass enhancement structure is a labyrinth enclosure (210), which is located in the rear cavity (111) and connected to the partition (150).