Sound box shell and sound box

Abstract

The invention provides a sound box shell and a sound box, which can be applied to the technical field of sound boxes. The sound box shell comprises a box body, a bass enhancement structure and a waterproof material. A sound cavity main body is arranged in the box body, the sound cavity main body comprises a first sound cavity and a second sound cavity, a mounting hole is formed in the side wall of the first sound cavity, and the mounting hole is used for mounting a loudspeaker; the bass enhancement structure is arranged in the second sound cavity and comprises at least one sound inlet hole and at least one sound outlet hole, the sound inlet hole is communicated with the second sound cavity, and the sound outlet hole penetrates through the side wall of the box body and is communicated with the outside; the waterproof material is arranged between the first sound cavity and the second sound cavity and used for isolating the first sound cavity from the second sound cavity, and the area of the waterproof material is larger than the sum of the cross sectional areas of all the sound inlet holes. The waterproof sound box is arranged in the sound cavity of the sound inlet hole far away from the bass enhancement structure, so that the influence of the waterproof material on the bass enhancement effect of the bass enhancement structure is greatly reduced, and the waterproof and bass enhancement functions of the sound box are well considered.

Description

Technical Field

[0001] This application relates to the technical field of speakers, and in particular, to a speaker housing and a speaker. Background Art

[0002] A speaker, as the core output device of an audio system, is responsible for converting an electrical signal into a sound wave to reproduce sound.

[0003] Since bass can provide a full, thick, and powerful sound effect, adding dynamics to music, a good bass presentation effect is the main concern of users and an important selling point of speaker products. To enhance bass, existing speakers generally have bass enhancement structures, such as a bass reflex tube and an acoustic superstructure.

[0004] However, neither the bass reflex tube nor the acoustic superstructure has a waterproof function, while outdoor speakers usually need to have a waterproof function. Therefore, it is necessary to develop a speaker device that can effectively balance the waterproof and bass enhancement functions. Summary of the Invention

[0005] This application provides a speaker housing and a speaker to solve the technical problem that existing speakers cannot effectively balance the waterproof and bass enhancement functions.

[0006] According to a first aspect disclosed in this application, this application provides a speaker housing, including a box body, a bass enhancement structure, and a waterproof material;

[0007] An acoustic cavity main body is arranged inside the box body. The acoustic cavity main body includes a first acoustic cavity and a second acoustic cavity. An installation hole is arranged on the side wall of the first acoustic cavity, and the installation hole is used for installing a speaker;

[0008] The bass enhancement structure is arranged in the second acoustic cavity. The bass enhancement structure includes at least one sound inlet hole and at least one sound outlet hole. The sound inlet hole communicates with the second acoustic cavity, and the sound outlet hole penetrates through the side wall of the box body and communicates with the outside;

[0009] The waterproof material is arranged between the first acoustic cavity and the second acoustic cavity. The waterproof material is used to isolate the first acoustic cavity and the second acoustic cavity, and the area of the waterproof material is larger than the sum of the cross-sectional areas of all the sound inlet holes.

[0010] In a feasible implementation manner, the bass enhancement structure is a bass reflex tube. One end of the bass reflex tube forms the sound inlet hole, and the other end of the bass reflex tube forms the sound outlet hole.

[0011] In a feasible implementation manner, the bass reflex tube is inclined, and the sound inlet hole of the bass reflex tube is higher than the sound outlet hole of the bass reflex tube.

[0012] In a feasible implementation, the bass enhancement structure is an acoustic superstructure, which includes a plurality of acoustic superstructure units. A zigzag channel is formed inside each acoustic superstructure unit. One end of the zigzag channel forms the sound inlet hole, and the other end of the zigzag channel forms the sound outlet hole.

[0013] In a feasible implementation, a conical mounting seat is provided on the bottom surface of the second sound cavity. The acoustic superstructure is disposed on the conical mounting seat, and the sound inlet hole of the acoustic superstructure is higher than the sound outlet hole of the acoustic superstructure.

[0014] In a feasible implementation, a support plate is provided between the first sound cavity and the second sound cavity, and at least one through hole is provided on the support plate;

[0015] The waterproof material is laid on the support plate.

[0016] In a feasible implementation, the area of the through hole is larger than the sum of the cross-sectional areas of all the sound inlet holes.

[0017] According to the second aspect disclosed in the present application, the present application provides a speaker, which includes the speaker housing according to the first aspect and a speaker;

[0018] The speaker is mounted on the mounting hole.

[0019] In a feasible implementation, the mounting hole communicates the first sound cavity with the outside;

[0020] The back of the speaker is placed inside the first sound cavity.

[0021] In a feasible implementation, the sound cavity body further includes a third sound cavity, and the mounting hole communicates the third sound cavity with the first sound cavity;

[0022] The back of the speaker is placed inside the third sound cavity.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] For a speaker housing and a speaker provided by the present application, by using a waterproof material to isolate the sound cavity body inside the speaker into a first sound cavity and a second sound cavity, the waterproof material is arranged inside the sound cavity far from the sound inlet hole of the bass enhancement structure. Since the area of the waterproof material can be set larger than the total cross-sectional area of the sound inlet holes, the influence of the waterproof material on the bass enhancement effect of the bass enhancement structure is greatly reduced. While obtaining a good waterproof effect, the requirement for the acoustic resistance of the waterproof material is reduced, so that the waterproof and bass enhancement functions of the speaker are well balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments consistent with this application and, together with the specification, are used to explain the principles of this application.

[0026] Figure 1 It is a schematic structural diagram of an existing phase-inverting tube speaker with a waterproof function Figure 1 ;

[0027] Figure 2 It is a schematic structural diagram of an existing phase-inverting tube speaker with a waterproof function Figure 2 ;

[0028] Figure 3 It is a schematic structural diagram of an existing acoustic superstructure speaker with a waterproof function;

[0029] Figure 4 It is Figure 3 a schematic structural diagram of the acoustic superstructure in Figure 1 ;

[0030] Figure 5 It is Figure 3 a schematic structural diagram of the acoustic superstructure in Figure 2 ;

[0031] Figure 6 It is a schematic structural diagram of the phase-inverting tube speaker provided by the embodiment of this application Figure 1 ;

[0032] Figure 7 It is a schematic structural diagram of the phase-inverting tube speaker provided by the embodiment of this application Figure 2 ;

[0033] Figure 8 It is a schematic structural diagram of the acoustic superstructure speaker provided by the embodiment of this application Figure 1 ;

[0034] Figure 9 It is Figure 8 a schematic structural diagram of the acoustic superstructure in

[0035] Figure 10 It is a schematic structural diagram of the acoustic superstructure speaker provided by the embodiment of this application Figure 2 ;

[0036] Figure 11 It is a schematic structural diagram of the acoustic superstructure speaker provided by the embodiment of this application Figure 3 ;

[0037] Figure 12 It is a schematic external shape structure diagram of the cuboid phase-inverting tube speaker provided by the embodiment of this application;

[0038] Figure 13 It is a schematic external shape structure diagram of the cylindrical acoustic superstructure speaker provided by the embodiment of this application;

[0039] Figure 14 Schematic diagram of the external structure of the prismatic acoustic metamaterial speaker provided by the embodiment of the present application;

[0040] Figure 15 is Figure 14 Schematic diagram of the structure of the acoustic metamaterial in

[0041] Figure 16 Schematic diagram of the external structure of the cubic acoustic metamaterial speaker provided by the embodiment of the present application;

[0042] Figure 17 is Figure 16 Schematic diagram of the structure of the acoustic metamaterial in

[0043] Figure 18 Schematic diagram of the external structure of the cylindrical front cavity acoustic metamaterial speaker provided by the embodiment of the present application;

[0044] Figure 19 is Figure 18 Schematic diagram of the internal structure of

[0045] Figure 20 Schematic diagram of the experimental results of the influence of different grades of waterproof materials set at the sound outlet of the acoustic metamaterial on the bass enhancement effect of the acoustic metamaterial speaker;

[0046] Figure 21 Schematic diagram of the experimental results of the influence of different grades of waterproof materials set inside the sound cavity on the bass enhancement effect of the acoustic metamaterial speaker

[0047] Explanation of reference numerals:

[0048] 100 - Cabinet;

[0049] 200 - Sound cavity main body;

[0050] 201 - First sound cavity;

[0051] 202 - Second sound cavity;

[0052] 203 - Third sound cavity;

[0053] 300 - Phase inverter;

[0054] 400 - Waterproof material;

[0055] 500 - Speaker;

[0056] 600 - Acoustic metamaterial;

[0057] 700 - Conical mounting seat;

[0058] 800 - Support plate;

[0059] 801 - Through - hole.

[0060] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be a more detailed description hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiments

[0061] Here, exemplary embodiments will be described in detail, and their examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0062] A speaker, as the core output device of an audio system, is responsible for converting electrical signals into sound waves to achieve sound reproduction. Its core function is to cover the audible frequency range of the human ear through the collaborative work of speaker units (such as high - frequency, mid - frequency, and low - frequency units), and to ensure accurate restoration of each frequency band with the help of a crossover.

[0063] Among them, due to the characteristics of low - frequency sound waves having long wavelengths and slow energy attenuation, low - frequency sound can provide a full, thick, and powerful sound effect, adding dynamics to music. A good low - frequency presentation effect is the main concern of users and an important selling point of speaker products. However, with the development of electronic products towards miniaturization, the challenge of low - frequency enhancement has become increasingly large, and low - frequency enhancement has become a difficulty and pain point in the industry.

[0064] To enhance low - frequency sound, existing physical low - frequency enhancement technologies mainly include passive radiators, bass reflex tubes, and acoustic superstructures. However, passive radiators have the problems of high cost and low reliability. The bass reflex tube changes the phase of the sound wave radiated from the back of the speaker diaphragm appropriately, making its phase close to in - phase with the sound wave radiated from the front of the speaker diaphragm in the main frequency band, and can effectively increase the low - frequency cut - off of the speaker. The acoustic superstructure is a structure that realizes the control and manipulation of sound waves through specially designed micro - structures. These structures usually have sub - wavelength sizes and exhibit periodic or aperiodic arrangements. By precisely designing these structures, the propagation characteristics of sound waves can be regulated. And the acoustic superstructure low - frequency enhancement technology can be considered a special type of bass reflex tube low - frequency enhancement technology, which has certain advantages in the miniaturization of speakers compared with traditional bass reflex tubes.

[0065] However, neither the phase inverter nor the acoustic superstructure has a waterproof function, while outdoor speakers usually need to have a waterproof function. In order to enable the phase inverter and the acoustic superstructure bass enhancement technology to achieve a waterproof function, a commonly conceivable technology is to paste waterproof materials at the sound inlet holes (the sound inlet holes refer to the openings where the phase inverter or the acoustic superstructure communicates with the speaker sound cavity) or the sound outlet holes (the sound outlet holes refer to the openings where the phase inverter or the acoustic superstructure communicates with the outside) of the phase inverter and the acoustic superstructure.

[0066] Referring to Figure 1 and Figure 2 , an existing phase inverter 300 speaker with a waterproof function includes a box body 100, a speaker 500, a phase inverter 300, and a waterproof material 400. Among them, the speaker 500 is installed on the installation hole of the box body 100. There is a sound cavity main body 200 inside the box body 100. The sound outlet hole of the phase inverter 300 communicates with the outside, and the sound inlet hole of the phase inverter 300 communicates with the sound cavity main body 200. The waterproof material 400 is arranged on the sound outlet hole of the phase inverter 300 (referring to Figure 1 ) or the sound inlet hole (referring to Figure 2 ). Since the waterproof material 400 closes the sound outlet hole or the sound inlet hole, in order to avoid the waterproof material 400 affecting the bass effect of the speaker, it is required that the acoustic resistance of the waterproof material 400 is very small under this structure. However, due to the large acoustic resistance of the existing waterproof material 400, it is difficult to balance the bass effect of the speaker when achieving a high waterproof level.

[0067] Referring to Figures 3 to 5 , an existing acoustic superstructure 600 speaker with a waterproof function includes a box body 100, a speaker 500, an acoustic superstructure 600, and a waterproof material 400. Among them, the speaker 500 is installed on the installation hole of the box body 100. There is a sound cavity main body 200 inside the box body 100. The sound outlet hole of the acoustic superstructure 600 communicates with the outside, and the sound inlet hole of the acoustic superstructure 600 communicates with the sound cavity main body 200. The waterproof material 400 is arranged on the sound outlet hole of the acoustic superstructure 600 (referring to Figure 4 ) or the sound inlet hole (referring to Figure 5 ). Since the waterproof material 400 closes the sound outlet hole or the sound inlet hole, in order to avoid the waterproof material 400 affecting the bass effect of the speaker, it is required that the acoustic resistance of the waterproof material 400 is very small under this structure. However, due to the large acoustic resistance of the existing waterproof material 400, it is difficult to balance the bass effect of the speaker when achieving a high waterproof level.

[0068] As can be seen from the above, due to material limitations, the existing waterproof materials 400 all have the problem of relatively high acoustic resistance. After pasting the waterproof material 400 on the sound inlet hole or sound outlet hole of the phase inverter 300 and the acoustic superstructure 600, although the speaker obtains the waterproof function, the bass enhancement effect of the speaker will become very poor. Moreover, the higher the waterproof grade of the waterproof material 400, the greater its acoustic resistance, and the greater the impact of the waterproof material 400 on the bass enhancement effect of the speaker, making it difficult to achieve a high-grade waterproof effect for the speaker.

[0069] Therefore, it is necessary to develop a speaker device that can effectively balance the waterproof effect and the bass enhancement effect.

[0070] In view of the above technical problems, the present application proposes a speaker housing and a speaker. By using a waterproof material to isolate the sound cavity body inside the speaker into a first sound cavity and a second sound cavity, the waterproof material is arranged inside the sound cavity far from the sound inlet hole of the bass enhancement structure. Since the area of the waterproof material can be set larger than the total cross-sectional area of the sound inlet holes, the influence of the waterproof material on the bass enhancement effect of the bass enhancement structure is greatly reduced. While obtaining a good waterproof effect, the requirement for the acoustic resistance of the waterproof material is reduced, thus well balancing the waterproof effect and the bass enhancement function of the speaker.

[0071] The technical solutions of the speaker housing and the speaker provided by the present application will be described in detail below through specific embodiments. It should be noted that the following embodiments can exist independently or be combined with each other. For the same or similar content, it may not be repeated in different embodiments.

[0072] Refer to Figures 6 to 10 , in some embodiments, the speaker housing includes a box body 100, a bass enhancement structure, and a waterproof material 400; a sound cavity body 200 is arranged inside the box body 100, the sound cavity body 200 includes a first sound cavity 201 and a second sound cavity 202, an installation hole is arranged on the side wall of the first sound cavity 201, and the installation hole is used for installing a speaker 500; the bass enhancement structure is arranged in the second sound cavity 202, the bass enhancement structure includes at least one sound inlet hole and at least one sound outlet hole, the sound inlet hole is communicated with the second sound cavity 202, and the sound outlet hole passes through the side wall of the box body 100 and is communicated with the outside; the waterproof material 400 is arranged between the first sound cavity 201 and the second sound cavity 202, the waterproof material 400 is used for isolating the first sound cavity 201 and the second sound cavity 202, and the area of the waterproof material 400 is larger than the sum of the cross-sectional areas of all the sound inlet holes.

[0073] In this embodiment, since the acoustic impedance of the existing waterproof material 400 is relatively large, directly disposing the waterproof material 400 at the sound outlet or sound inlet of the bass enhancement structure will seriously affect the bass enhancement effect of the bass enhancement structure. To solve this problem, in this embodiment, the waterproof material 400 is used to isolate the main sound cavity 200 inside the speaker into a first sound cavity 201 inside and a second sound cavity 202 outside, so that the waterproof material 400 is disposed inside the sound cavity far from the sound inlet of the bass enhancement structure. Water outside the speaker can only reach the second sound cavity 202 outside through the bass enhancement structure, and cannot reach the first sound cavity 201 inside. Moreover, the water entering the first sound cavity 201 outside can also be easily discharged from the bass enhancement structure subsequently, thereby realizing the waterproof function of the speaker.

[0074] Since the area of the waterproof material 400 is larger than the sum of the cross-sectional areas of the sound inlets of the bass enhancement structure, and the larger the area of the waterproof material 400 is than the sum of the cross-sectional areas of the sound inlets of the bass enhancement structure, the smaller the influence of the waterproof material 400 on the bass enhancement structure. Therefore, when the area of the waterproof material 400 is much larger than the sum of the cross-sectional areas of the sound inlets of the bass enhancement structure, the waterproof material 400 will basically not affect the bass enhancement effect of the phase inversion tube 300. Thus, the influence of the waterproof material 400 on the bass enhancement effect of the bass enhancement structure is greatly reduced. While obtaining a good waterproof effect, the requirement for the acoustic impedance of the waterproof material 400 is reduced, thereby well taking into account the waterproof and bass enhancement functions of the speaker.

[0075] Refer to Figure 11 , optionally, a support plate 800 is disposed between the first sound cavity 201 and the second sound cavity 202, and at least one through hole 801 is disposed on the support plate 800; the waterproof material 400 is laid on the support plate 800.

[0076] Among them, by disposing the support plate 800 between the first sound cavity 201 and the second sound cavity 202, the reliability of the installation of the waterproof material 400 can be enhanced, the waterproof material 400 can be prevented from falling off, and the waterproof effect can be guaranteed.

[0077] Optionally, the area of the through hole 801 is larger than the sum of the cross-sectional areas of all the sound inlets.

[0078] Among them, since only the waterproof material 400 located at the through hole 801 has the waterproof and sound-permeable effect after the support plate 800 is disposed, in order to reduce the influence of the support plate 800 on the acoustic impedance of the waterproof material 400 and avoid the support plate 800 from affecting the bass enhancement effect, the perforation rate of the support plate 800 needs to be large enough, and the area of its through hole 801 should be larger than the sum of the cross-sectional areas of all the sound inlets.

[0079] Optionally, the waterproof material 400 is a waterproof and breathable acoustic membrane, a waterproof acoustic mesh or a waterproof and breathable membrane.

[0080] Specifically, the waterproof and breathable acoustic membrane is a special thin film material that can both prevent water and allow air to pass through, while having good acoustic performance, which can ensure the normal transmission of sound and reduce sound loss.

[0081] Specifically, the waterproof acoustic mesh is an auxiliary damping material applied to electroacoustic components such as mobile phones, headphones, and speakers. It mainly plays the role of acoustic filtering and also has the functions of dust prevention and waterproofing.

[0082] Specifically, the waterproof and breathable membrane is a new type of polymer waterproof material 400 that allows gas molecules to pass through but blocks liquid molecules from entering, thus playing the role of waterproofing and breathability.

[0083] The above waterproof material 400 not only has a good waterproof effect but also has the advantages of low acoustic resistance and low cost.

[0084] Refer to Figure 6 , in some embodiments, the bass enhancement structure is the phase inverter 300. One end of the phase inverter 300 forms an inlet sound hole, and the other end of the phase inverter 300 forms an outlet sound hole.

[0085] In this embodiment, the phase inverter 300 is a hollow tube structure, usually made of PVC material, metal, or cardboard tube. One end of the phase inverter 300 is connected to the sound cavity inside the speaker, and the other end is exposed outside the speaker and communicates with the outside space through an outlet sound hole on the outer surface of the speaker. The phase inverter 300 radiates the sound wave generated on the back of the speaker 500 outward through the phase inverter 300 and combines and superposes in phase with the sound wave in front of the speaker 500, enhancing the bass effect. Its length or the size of the diameter has a great influence on the frequency characteristics. A reasonable size must be obtained to achieve a good bass enhancement effect.

[0086] Refer to Figure 7 , optionally, the phase inverter 300 is inclined, and the inlet sound hole of the phase inverter 300 is higher than the outlet sound hole of the phase inverter 300.

[0087] Among them, in order to make the water entering the second sound cavity 202 more easily discharged through the phase inverter 300, the phase inverter 300 can be set to incline downward. In this way, it can block the water outside from entering the sound cavity through the inclined surface and also facilitate the discharge of the water entering the sound cavity.

[0088] Refer to Figure 8 and Figure 9 , in some embodiments, the bass enhancement structure is the acoustic superstructure 600. The acoustic superstructure 600 includes a plurality of acoustic superstructure units. A tortuous channel is formed inside the acoustic superstructure unit. One end of the tortuous channel forms an inlet sound hole, and the other end of the tortuous channel forms an outlet sound hole.

[0089] In this embodiment, the acoustic metamaterial 600 is a specially designed acoustic material. Its special design does not refer to a specific material type, but rather a special structural design, such as special dimensions and a resonating cavity array with a specific arrangement. The structure usually has sub-wavelength dimensions, and multiple acoustic metamaterial units exhibit a periodic or aperiodic arrangement. The zigzag channels inside the acoustic metamaterial unit can extend the propagation path of sound waves in the material, causing the sound waves to experience more reflections and scattering during propagation. By precisely designing the structural parameters of the zigzag channels, such as channel length, width, shape, etc., the resonant frequency of the acoustic metamaterial can be adjusted to better match the frequency range of bass sound waves, thereby optimizing the bass response and enhancing the bass effect.

[0090] Refer to Figure 10 , optionally, a conical mounting seat 700 is provided on the bottom surface of the second sound cavity 202, the acoustic metamaterial 600 is disposed on the conical mounting seat 700, and the sound inlet hole of the acoustic metamaterial 600 is higher than the sound outlet hole of the acoustic metamaterial 600.

[0091] Among them, in order to make the water entering the second sound cavity 202 flow out more easily through the acoustic metamaterial 600, a conical mounting seat 700 is provided on the bottom surface of the second sound cavity 202. The conical mounting seat 700 is characterized in that its height decreases successively from the inside to the outside along the radial direction of the bottom surface. This allows the acoustic metamaterial 600 arranged on the conical mounting seat 700 to have a structural layout where the sound inlet hole is higher than the sound outlet hole in all directions. In this way, it can block the water outside from entering the sound cavity inside through the inclined surface and facilitate the drainage of the water entering the sound cavity inside.

[0092] Refer to Figures 12 to 17 , in some embodiments, the speaker box includes the above-mentioned speaker box housing and a speaker 500; the speaker 500 is installed on the mounting hole.

[0093] In this embodiment, the speaker 500 is installed on the mounting hole of the speaker box housing, and the speaker 500 and the speaker box housing form a speaker box. By using the waterproof material 400 to isolate the sound cavity main body 200 inside the speaker box into a first sound cavity 201 and a second sound cavity 202, the waterproof material 400 is thus disposed inside the sound cavity far from the sound inlet hole of the bass enhancement structure. Since the area of the waterproof material 400 can be set larger than the total cross-sectional area of the sound inlet holes, the influence of the waterproof material 400 on the bass enhancement structure is greatly reduced. While the speaker box obtains a good waterproof effect, the requirement for the acoustic resistance of the waterproof material 400 is reduced, thus well balancing the waterproof effect and the bass enhancement effect of the speaker box.

[0094] Refer to Figures 12 to 17 , optionally, the box body 100 is a prism or a cylinder.

[0095] Among them, the box body 100 can be a cuboid (refer toFigure 12 ) Cubes (see Figure 16 ), hexagonal prisms (see Figure 14 ), and other prismatic structures, or cylindrical structures (see Figure 13 ).

[0096] Among them, when the box body 100 is a hexagonal prism, the structure of its internal acoustic metamaterial 600 is shown in Figure 15 .

[0097] Among them, when the box body 100 is a cube, the structure of its internal acoustic metamaterial 600 is shown in Figure 17 .

[0098] Among them, when the box body 100 is cylindrical, the structure of its internal acoustic metamaterial 600 is shown in Figure 9 .

[0099] See Figure 6 . Optionally, the mounting hole communicates the first sound cavity 201 with the outside; the back of the speaker 500 is placed inside the first sound cavity 201.

[0100] Refer to Figure 18 and Figure 19 . Optionally, the sound cavity body 200 further includes a third sound cavity 203, and the mounting hole communicates the third sound cavity 203 with the first sound cavity 201; the back of the speaker 500 is placed inside the third sound cavity 203.

[0101] Based on the above embodiments, refer to Figure 20 and Figure 21 . The sensitivity experimental comparison results of the closed speaker, the speaker with the acoustic metamaterial 600 without the waterproof material 400, the speaker with the acoustic metamaterial 600 with waterproof materials 400 of different waterproof grades at the sound outlet hole, and the speaker with the acoustic metamaterial 600 with waterproof materials 400 of different waterproof grades inside the sound cavity body are given.

[0102] It can be seen that the acoustic metamaterial 600 has a good bass enhancement effect. However, after the waterproof material 400 is set at the sound inlet hole of the acoustic metamaterial 600, the bass enhancement effect of the acoustic metamaterial 600 becomes worse, and as the waterproof grade of the waterproof material 400 increases, the bass enhancement of the acoustic metamaterial 600 becomes worse. And setting the waterproof material 400 inside the sound cavity basically does not affect the bass enhancement effect of the acoustic metamaterial 600.

[0103] It can be seen from this that compared with the existing speakers, the speaker provided in this application well balances the waterproof effect and the bass enhancement effect of the speaker, and broadens the application scenarios of the bass enhancement technologies of the phase inverter 300 and the acoustic metamaterial 600.

[0104] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0105] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0106] In the present application, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0107] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0108] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0109] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0110] Those skilled in the art will readily think of other implementation schemes of this application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application, which follow the general principles of this application and include the common general knowledge or conventional technical means in the technical field not disclosed in this application. The specification and the embodiments are only regarded as exemplary, and the true scope and spirit of this application are pointed out by the appended claims.

[0111] It should be understood that this application is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is only limited by the appended claims.

Claims

1. A speaker housing, characterized in that, It includes a box body, a bass enhancement structure and a waterproof material; An acoustic cavity main body is arranged inside the box body. The acoustic cavity main body includes a first acoustic cavity and a second acoustic cavity. An installation hole is arranged on the side wall of the first acoustic cavity, and the installation hole is used for installing a loudspeaker; The bass enhancement structure is arranged in the second acoustic cavity. The bass enhancement structure includes at least one sound inlet hole and at least one sound outlet hole. The sound inlet hole communicates with the second acoustic cavity, and the sound outlet hole penetrates through the side wall of the box body to communicate with the outside; The waterproof material is arranged between the first acoustic cavity and the second acoustic cavity. The waterproof material is used to isolate the first acoustic cavity and the second acoustic cavity, and the area of the waterproof material is larger than the sum of the cross-sectional areas of all the sound inlet holes.

2. The speaker housing according to claim 1, characterized in that, The bass enhancement structure is a phase inverter tube. One end of the phase inverter tube forms the sound inlet hole, and the other end of the phase inverter tube forms the sound outlet hole.

3. The speaker housing according to claim 2, wherein, The phase inverter tube is obliquely arranged, and the sound inlet hole of the phase inverter tube is higher than the sound outlet hole of the phase inverter tube.

4. The speaker housing according to claim 1, wherein The bass enhancement structure is an acoustic metamaterial. The acoustic metamaterial includes a plurality of acoustic metamaterial units. A tortuous channel is formed inside the acoustic metamaterial unit. One end of the tortuous channel forms the sound inlet hole, and the other end of the tortuous channel forms the sound outlet hole.

5. The speaker housing according to claim 4, wherein, A conical mounting seat is arranged on the bottom surface of the second acoustic cavity. The acoustic metamaterial is arranged on the conical mounting seat, and the sound inlet hole of the acoustic metamaterial is higher than the sound outlet hole of the acoustic metamaterial.

6. The speaker housing according to any one of claims 1-5, characterized in that, A support plate is arranged between the first acoustic cavity and the second acoustic cavity, and at least one through hole is arranged on the support plate; The waterproof material is laid on the support plate.

7. The speaker housing according to claim 6, wherein, The area of the through hole is larger than the sum of the cross-sectional areas of all the sound inlet holes.

8. A speaker, characterized in that, It includes a speaker housing according to any one of claims 1-7, and a loudspeaker; The loudspeaker is installed on the installation hole.

9. The speaker according to claim 8, characterized in that, The installation hole communicates the first acoustic cavity and the outside; The back of the loudspeaker is placed in the first acoustic cavity.

10. The speaker according to claim 8, characterized in that, The acoustic cavity main body further includes a third acoustic cavity, and the installation hole communicates the third acoustic cavity and the first acoustic cavity; The back of the loudspeaker is placed in the third acoustic cavity.

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