Sound box acoustic sealing structure and sound box

Abstract

This utility model discloses an acoustically sealed structure and a speaker enclosure. The acoustically sealed structure includes: a first cavity formed integrally with the upper shell and the first cavity; a bracket at the opening of the first cavity; a speaker fixed to the bracket; and multiple studs on the upper shell. The upper shell covers the bottom shell to form a second cavity, which contains multiple control boards fixed to the studs. This utility model provides an acoustically sealed structure and speaker enclosure that forms a closed speaker cavity, eliminating the need for an additional speaker enclosure shell and reducing overall structural component costs. The integrated design only requires sealing components at the bracket assembly seams and the speaker body assembly surface, significantly reducing the sealing area and making acoustic sealing easier to achieve. The manufacturing process is easier than with a modular enclosure and offers higher sealing reliability, further enhancing the product's market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and in particular to an acoustically sealed structure and speaker. Background Technology

[0002] In recent years, soundbars, as a new type of audio device, have gradually gained market attention and favor. Through the rational arrangement of multiple speaker units, soundbars can effectively simulate a wide stereo sound field, providing richer sound layers and a greater sense of direction. This design not only enhances the user's listening experience but also allows the sound to better cover the entire space, giving users a more immersive sound effect.

[0003] In addition, soundbars offer a variety of sound effect modes, such as movie mode, music mode, and game mode, which can optimize sound performance according to different usage scenarios. Some high-end soundbars even support advanced audio technologies such as Dolby Atmos or DTS:X, further providing an immersive three-dimensional sound experience and meeting the diverse needs of users in different scenarios.

[0004] To reduce packaging and shipping costs, existing soundbar products are typically constructed with a three-section assembly: a center speaker, a left speaker, and a right speaker. Currently, the center speaker needs to meet the following requirements for component stacking and acoustic design:

[0005] 1. The center speaker and motherboard PCBA need to be placed inside the enclosure;

[0006] 2. The terminals of the center speaker and the mainboard PCBA are basically located in the center of the enclosure;

[0007] 3. To ensure sound quality, the center speaker needs to have an additional housing cavity or a fully sealed design.

[0008] However, meeting these requirements usually increases the cost of structural components and sealing assembly processes, affecting the product's market competitiveness. Utility Model Content

[0009] The purpose of this invention is to provide an acoustically sealed structure and speaker that eliminates the need for additional structural components, thereby reducing the sealing assembly area, lowering costs, and significantly enhancing the product's market competitiveness.

[0010] The technical solution adopted by the acoustic sealing structure and speaker box disclosed in this utility model is as follows:

[0011] An acoustically sealed structure includes an upper shell and a lower shell; the upper shell has a first cavity, the upper shell and the first cavity are integrally formed, the opening end of the first cavity is provided with a bracket, the bracket is fixed with a horn, and the upper shell is provided with a plurality of studs; the upper shell covers the lower shell to form a second cavity, and the second cavity is provided with a plurality of control plates, the control plates being fixed to the studs.

[0012] As a preferred embodiment, a seal is provided between the upper shell and the bracket.

[0013] As a preferred embodiment, the first cavity opening is provided with a positioning post, and the bracket is provided with a locking hole, and the positioning post is locked into the locking hole.

[0014] As a preferred embodiment, the first cavity includes a contouring stage and a support section, wherein the contouring stage is fixed to the end of the horn, and the support section is fixed to the top of the control plate.

[0015] As a preferred embodiment, the outer wall of the upper shell is provided with a sunken port plane.

[0016] A speaker includes an acoustic sealing mechanism as described above, a left speaker, and a right speaker, wherein the left speaker and the right speaker are detachably connected to the left and right sides of the acoustic sealing mechanism, respectively.

[0017] As a preferred embodiment, the acoustic sealing mechanism is provided with knob mechanisms on both sides, one end of the left speaker, and one end of the right speaker. The left and right speakers are respectively connected to the left and right sides of the acoustic sealing mechanism through the knob mechanisms.

[0018] The beneficial effects of the acoustically sealed structure and speaker enclosure disclosed in this utility model are as follows: A first cavity is formed in the upper shell, the upper shell and the first cavity are integrally molded, a bracket is provided at the opening end of the first cavity, and a speaker is fixed to the bracket. The upper shell is provided with multiple studs. The upper shell covers the bottom shell to form a second cavity, and multiple control plates are provided inside the second cavity, the control plates being fixed to the studs. The first cavity constitutes a closed speaker cavity, eliminating the need for an additional speaker enclosure shell and reducing the overall structural component cost. The integrated design only requires sealing components to be added at the bracket assembly joints and the speaker body assembly surface, greatly reducing the sealing area and making acoustic sealing easier to achieve. In terms of manufacturing, it is easier to operate than a component-type enclosure and has higher sealing reliability, further enhancing the product's market competitiveness. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an acoustic sealing structure according to the present invention;

[0020] Figure 2 This is an exploded view of an acoustic sealing structure according to this utility model;

[0021] Figure 3 This is a schematic diagram of the upper shell of an acoustically sealed structure according to this utility model;

[0022] Figure 4 This is a cross-sectional view of the upper shell of an acoustically sealed structure according to this utility model;

[0023] Figure 5 This is a cross-sectional view of the assembled upper shell of an acoustically sealed structure according to this utility model;

[0024] Figure 6 This is a first-view structural diagram of a speaker according to the present invention;

[0025] Figure 7 This is a second-view structural diagram of a speaker according to the present invention;

[0026] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0027] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings. It should also be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0028] It should be noted that embodiments referred to in the specification as "an embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc., may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above” and “above” in this disclosure should be interpreted in the broadest sense, such that “on” means not only “directly on” something, but also includes something with an intermediary feature or layer, and that “above” or “above” means not only “on” something, but also includes something “above” or “above” without an intermediary feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] Please refer to Figure 1-3 An acoustic sealing structure includes an upper shell 10 and a bottom shell 20 (the acoustic sealing structure in this application is specifically the center speaker 100 assembly).

[0033] The upper shell 10 has a first cavity 11, and the upper shell 10 and the first cavity 11 are integrally formed. A bracket 12 is provided at the opening end of the first cavity 11, and a speaker 13 is fixed to the bracket 12. In this embodiment, both the speaker 13 and the bracket 12 are locked with screws. The upper shell 10 has multiple studs 14. The upper shell 10 covers the bottom shell 20 to form a second cavity 15. Multiple control boards 16 are provided inside the second cavity 15, and the control boards 16 are fixed to the studs 14. In this embodiment, the control board 16 includes a PCBA main board, a power board, a touch panel, and a display board.

[0034] The first cavity 11 forms a closed horn 13 cavity, eliminating the need for an additional horn 13 diaphragm shell and reducing overall structural component costs. The integrated design only requires sealing components to be added at the assembly joints of the bracket 12 and the mounting surface of the horn 13 body, significantly reducing the sealing area and making acoustic sealing easier to achieve. From a manufacturing perspective, it is easier to operate than a modular diaphragm design and offers higher sealing reliability, further enhancing the product's market competitiveness.

[0035] Meanwhile, the integrated design connects the front and rear sidewalls of the upper shell 10 through the sidewall of the first cavity 11, making the overall structure stronger and less prone to deformation during molding; after molding, it can also serve as a reinforcing component to support the front and rear sidewalls of the upper shell 10.

[0036] Preferably, a sealing element is provided between the upper shell 10 and the bracket 12, and between the bracket 12 and the speaker 13. In this embodiment, EVA sealing cotton is preferred.

[0037] Preferably, the first cavity 11 has a positioning post 111 at its open end, and the bracket 12 has a locking hole 121. When the bracket 12 is installed on the upper shell 10, it can be pre-positioned by inserting the positioning post 111 into the locking hole 121, which facilitates subsequent locking.

[0038] Please refer to Figure 4 and Figure 5 The first cavity 11 includes a contouring stage A and a support section B. The contouring stage is fixed to the end of the horn 13 to support the horn 13 and prevent the end of the horn 13 from tilting due to gravity. The outer wall of the support section B of the first cavity 11 is fixed to the control plate 16 by a locking post, which improves the stability of the control plate 16 in the second cavity 15. The locking post for fixing the control plate 16 is a single integral part on the side wall of the first cavity 11. The locking post can be designed to be relatively short. Compared with setting the locking post on a separate cavity part, this locking post design has higher dimensional accuracy and rigidity, thus achieving higher precision during the assembly of the control plate 16.

[0039] Furthermore, the outer wall of the upper shell 10 is provided with a recessed port plane 17.

[0040] The outline design of the first cavity 11 and the structural design of the recessed port plane 17 also facilitate mold demolding. Specifically, the mold uses a sliding form to extract the first cavity 11. The inner bottom of the first cavity 11 is ejected vertically above the recessed port plane 17 by the sliding form. The sliding form can penetrate deep into the recessed port plane 17 and reach the side wall of the upper shell 10. This allows for a large-stroke demolding process that is difficult to achieve with ordinary inclined ejectors. It has significant advantages in mold manufacturability and demolding stroke, thus providing more design space for the product.

[0041] Please refer to Figure 6 and Figure 7 This embodiment also provides a speaker, including the aforementioned acoustic sealing mechanism (center speaker 100), left speaker 200 and right speaker 300, wherein the left speaker 200 and right speaker 300 are detachably connected to the left and right sides of the acoustic sealing mechanism (center speaker 100), respectively.

[0042] Preferably, the acoustic sealing mechanism (center speaker 100) is provided with knob mechanisms 400 on both sides, one end of the left speaker 200 and one end of the right speaker 300, and the left speaker 200 and the right speaker 300 are respectively connected to the left and right sides of the acoustic sealing mechanism (center speaker 100) through the knob mechanisms 400.

[0043] This utility model provides an acoustically sealed structure and speaker enclosure. A first cavity is integrally formed with the upper shell, and a bracket is provided at the opening of the first cavity, fixing a speaker to the bracket. The upper shell has multiple studs. The upper shell covers the bottom shell, forming a second cavity, which contains multiple control boards fixed to the studs. The first cavity constitutes a sealed speaker enclosure, eliminating the need for an additional speaker diaphragm shell and reducing overall structural costs. The integrated design only requires sealing components at the bracket assembly joints and the speaker body assembly surface, significantly reducing the sealing area and facilitating acoustic sealing. The manufacturing process is easier than with a modular diaphragm enclosure and offers higher sealing reliability, further enhancing the product's market competitiveness.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. An acoustically sealed structure, characterized in that, Including the upper shell and the bottom shell; The upper shell has a first cavity, and the upper shell and the first cavity are integrally formed. The opening end of the first cavity is provided with a bracket, and the bracket is fixed with a horn. The upper shell is provided with multiple studs. The upper shell is placed on the bottom shell to form a second cavity, and multiple control plates are provided in the second cavity. The control plates are fixed on studs.

2. The acoustic sealing structure as described in claim 1, characterized in that, A seal is provided between the upper shell and the bracket.

3. The acoustic sealing structure as described in claim 2, characterized in that, The first cavity opening is provided with a positioning post, and the bracket is provided with a locking hole, and the positioning post is locked into the locking hole.

4. The acoustic sealing structure as described in claim 3, characterized in that, The first cavity includes a contouring stage and a support section. The contouring stage is fixed to the end of the horn, and the support section is fixed to the top of the control plate.

5. An acoustic sealing structure as described in claim 4, characterized in that, The outer wall of the upper shell is provided with a sunken port plane.

6. A speaker, characterized in that, Includes the acoustic sealing structure as described in any one of claims 1-5, a left speaker and a right speaker, wherein the left speaker and the right speaker are detachably connected to the left and right sides of the acoustic sealing mechanism, respectively.

7. A speaker as described in claim 6, characterized in that, The acoustic sealing mechanism is equipped with knob mechanisms on both sides, at one end of the left speaker and one end of the right speaker. The left and right speakers are connected to the left and right sides of the acoustic sealing mechanism respectively through the knob mechanisms.

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