An airtight structure of a sound device and a sound device

Abstract

The utility model relates to technical field of sound equipment, disclose a kind of airtight structure and sound equipment of sound equipment, including loudspeaker cavity and tubular connecting piece, and loudspeaker cavity is equipped with first assembly hole;Tubular connecting piece is installed in first assembly hole, and tubular connecting piece and loudspeaker cavity are sealed connection;Wherein, second assembly hole is equipped in tubular connecting piece along its axial extension. Such design, can improve the sealing of loudspeaker cavity inside, second, second assembly hole is equipped in tubular connecting piece, and second assembly hole can be used to install fixed support, such design, allow to carry out the installation and disassembly of fixed support without damaging the sealing of loudspeaker cavity, not only can guarantee that sound equipment has disassembly convenience, also can improve the airtightness of sound equipment.

Description

Technical Field

[0001] This utility model relates to the field of audio equipment technology, and in particular to an airtight structure for an audio device and an audio device. Background Technology

[0002] In the design of small loudspeakers, a passive radiator is often added to improve low-frequency performance, enhance bass quantity, and achieve a deeper bass effect. The passive radiator primarily works in conjunction with the active speaker unit, driven by changes in air pressure within the enclosure. When the active speaker unit vibrates back and forth, pushing air, the air pressure within the sealed cavity changes, thereby exciting the passive radiator to resonate, extending the low-frequency range and improving the overall listening experience.

[0003] However, the passive radiator's effectiveness depends on the speaker enclosure having good airtightness; that is, the speaker enclosure must be well-sealed. If there is air leakage inside the speaker enclosure, an effective pressure change cannot be formed, the passive radiator's efficiency will decrease significantly, and it may even lose its ability to extend low frequencies.

[0004] In the actual product design and manufacturing process, due to the need to install and fix various components such as speaker units and functional circuit boards inside the cavity, and considering the convenience of overall speaker installation and disassembly, it is often difficult to achieve a completely sealed cavity structure, resulting in insufficient airtightness of the structure. Utility Model Content

[0005] The main purpose of this utility model is to provide an airtight structure for audio equipment, which not only ensures the ease of disassembly and assembly of the audio equipment, but also improves the airtightness of the audio equipment.

[0006] To achieve the above objectives, this utility model proposes an airtight structure for an audio device, comprising: A horn cavity, wherein the horn cavity is provided with a first mounting hole; A tubular connector is installed in the first assembly hole, and the tubular connector and the horn cavity are sealed together. The tubular connector has a second assembly hole extending along its axial direction.

[0007] Optionally, the tubular connector includes: First matrix; The second substrate is integrally formed with the first substrate, and the diameter of the first substrate is larger than the diameter of the second substrate; The first mounting hole includes a first mounting section, which includes a first base hole and a second base hole that are interconnected. The diameter of the first base hole is larger than the diameter of the second base hole. The first substrate is at least partially located within the first base hole, and the second substrate is at least partially located within the second base hole.

[0008] Optionally, the first substrate is provided with a through hole coaxially arranged with the second assembly hole, the through hole and the second assembly hole are connected, and the diameter of the through hole gradually decreases along the direction toward the second substrate.

[0009] Optionally, the through hole is a conical hole.

[0010] Optionally, the cross-sections of both the first substrate and the second substrate are circular.

[0011] The airtight structure further includes fasteners, which include: head; The rod portion connected to the head; The head is embedded in the through hole, and the rod is fastened to the fixing bracket located in the second assembly hole.

[0012] Optionally, the first mounting hole further includes a second mounting section, and an overflow groove extending circumferentially around the opening of the second mounting section is provided, the overflow groove being connected to the second mounting section.

[0013] Optionally, both the first mounting section and the second mounting section have an assembly gap with the tubular connector, the assembly gap being used to fill sealant.

[0014] In addition, this application also provides an audio device, including the above-mentioned airtight structure and fixing bracket, wherein the fixing bracket is at least partially inserted inside the tubular connector.

[0015] Optionally, the fixing bracket includes: First fixed body; The second fixing body is connected to the first fixing body. The projection of the second fixing body along the axial direction of the second fixing body is orthogonal, and the projection area of ​​the first fixing body is larger than the projection area of ​​the second fixing body. The first fixing body is provided with a plurality of connection holes for connecting to a television, and the diameter of the second fixing body is less than or equal to the diameter of the second mounting hole.

[0016] Beneficial Effects: The airtight structure for audio equipment proposed in this utility model includes a speaker cavity and a tubular connector. The speaker cavity has a first mounting hole; the tubular connector is installed in the first mounting hole, and the tubular connector and the speaker cavity are sealed together. The tubular connector has a second mounting hole extending axially within it, which is used to install a fixing bracket. This design ensures a sealed connection between the tubular connector and the speaker cavity, improving the internal sealing of the speaker cavity. Furthermore, the second mounting hole in the tubular connector allows for the installation and removal of the fixing bracket without compromising the sealing of the speaker cavity. This not only ensures convenient assembly and disassembly of the audio equipment but also improves its airtightness. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the assembly of traditional audio equipment and television; Figure 2 A partial cross-sectional view of a traditional audio system and television assembly; Figure 3 This is a three-dimensional structural diagram of the tubular connector disclosed in this application; Figure 4 This is an assembly diagram of the audio equipment and television disclosed in this application; Figure 5 This is a partial cross-sectional view of the audio equipment disclosed in this application; Figure 6 for Figure 5 A magnified view of a section at point A in the middle; Figure 7 for Figure 5 A magnified view of a section at point B in the middle; Figure 8 This is a partial cross-sectional view of the audio equipment and television disclosed in this application after assembly.

[0019] Explanation of icon numbers: 1. Speaker cavity; 11. First mounting hole; 111. First mounting section; 1111. First base hole; 1112. Second base hole; 112. Second mounting section; 113. Glue overflow groove; 2. Tubular connector; 2a. Second mounting hole; 21. First base; 211. First end face; 212. Second end face; 213. Through hole; 22. Second base; 3. Fixing bracket; 31. First fixing body; 32. Second fixing body; 4. Fastener; 5. Television.

[0020] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0025] See Figure 1As shown, Figure 1 This is a schematic diagram of the assembly of a traditional audio device and a television 5. The traditional assembly method is to connect the speaker cavity 1 of the audio device and the television 5 with a fixed bracket 3 to assemble them into a whole. Using the fixed bracket 3 for connection is not only simple and convenient to assemble, but also has reliable connection strength and can be disassembled and assembled multiple times.

[0026] Typically, the mounting bracket 3 needs to pass through the speaker cavity 1 of the audio equipment for installation and fixation, such as... Figure 2 As shown, Figure 2 This is a partial cross-sectional view of a traditional audio device and television assembly. The mounting bracket 3 is first fixed to the bottom of the television 5 with screws. The long support column of the mounting bracket 3 is exposed. The long support column passes through the hole above the speaker cavity 1 and is inserted into the bottom of the speaker cavity 1. Then, the audio device is fixed to the mounting bracket 3 by two screws passing through the countersunk hole at the bottom of the speaker cavity 1.

[0027] However, with the above assembly method, there will inevitably be a fitting gap between the fixed bracket 3 and the speaker cavity 1. That is, the fixed bracket 3 and the upper and lower ends of the speaker cavity 1 will form fitting gaps, which will damage the airtightness of the speaker cavity and thus interfere with the normal operation of the passive cone. As a key component for enhancing low-frequency response, the passive cone relies on the elastic vibration of the air in the sealed cavity. When there is a gas leakage path in the speaker cavity, the internal air pressure is difficult to effectively compress and release with the movement of the voice coil. In the low-frequency range, such leakage can easily weaken the sound pressure level and bass extension of the audio equipment, thus affecting the solidity and clarity of the overall sound of the audio equipment.

[0028] Based on this, this embodiment provides an airtight structure for an audio device, see [link / reference]. Figures 3-5 As shown, the airtight structure includes a horn cavity 1 and a tubular connector 2. The horn cavity 1 is provided with a first mounting hole 11. The tubular connector 2 is installed in the first mounting hole 11 and the tubular connector 2 and the horn cavity 1 are sealed together. The tubular connector 2 is provided with a second mounting hole 2a extending along its axial direction. The second mounting hole 2a is used to install a fixing bracket 3.

[0029] Specifically, the tubular connector 2 is sealed to the speaker cavity 1, which improves the sealing of the speaker cavity 1, allowing the passive cone to resonate with the vibration of the active unit and expand the low-frequency extension range. Secondly, the tubular connector 2 is provided with a second mounting hole 2a for installing the fixing bracket 3. This design allows the fixing bracket 3 to be installed and removed without damaging the sealing of the speaker cavity 1, which not only ensures the ease of installation and removal of the audio equipment, but also improves the airtightness of the audio equipment.

[0030] See Figure 3As shown, the tubular connector 2 includes a first base 21 and a second base 22 integrally formed with the first base 21. The diameter of the first base 21 is larger than the diameter of the second base 22.

[0031] See Figure 4 and Figure 7 As shown, the first mounting hole 11 includes a first mounting section 111, which includes a first base hole 1111 and a second base hole 1112 that are interconnected. The diameter of the first base hole 1111 is larger than the diameter of the second base hole 1112. The first base body 21 is at least partially located in the first base hole 1111, and the second base body 22 is at least partially located in the second base hole 1112.

[0032] Specifically, the cross-section of the first substrate 21 and the cross-section of the second substrate 22 are both circular.

[0033] As a preferred embodiment of this application, the tubular connector 2 has a length of 53.8 mm, the second mounting hole 2a has a diameter of 8.2 mm, the first base 21 has a diameter of 15 mm, the first base 21 has a thickness of 1 mm, and the second base 22 has a diameter of 11.2 mm.

[0034] It should be noted that the dimensional design of the tubular connector 2 exemplified above is only a preferred solution in this application. Those skilled in the art can also adjust the dimensional design of the tubular connector 2 according to actual production needs. As long as the technical effect to be achieved in this application can be realized, it should be within the scope of patent protection of this application.

[0035] See Figure 7 As shown, the first substrate 21 includes a first end face 211 away from the second substrate 22 and a second end face 212 close to the second substrate 22. The first substrate 21 is provided with a through hole 213 coaxially arranged with the second mounting hole 2a. The through hole 213 communicates with the second mounting hole 2a. The diameter of the through hole 213 gradually decreases from the first end face 211 toward the direction close to the second end face 212.

[0036] See Figure 4 , Figure 7 and Figure 8 As shown, the airtight structure provided in this embodiment also includes a fastener 4, which includes a head and a rod connected to the head; wherein the head is embedded in the through hole 213, and the rod is fastened to the fixing bracket 3 located in the second assembly hole 2a.

[0037] Specifically, the through hole 213 is used for the rod of the fastener 4 to pass through, so that the rod of the fastener 4 can be threadedly connected to the fixed bracket 3 inserted in the second assembly hole 2a. Moreover, the gradually changing diameter structure of the through hole 213 can effectively restrict the inward movement of the head of the fastener 4, and the tapered inner wall of the through hole 213 forms a locking effect on the head of the fastener 4.

[0038] Preferably, the through hole 213 is a conical hole, and correspondingly, the fastener 4 is a countersunk screw. When the countersunk screw is tightened, the conical head of the countersunk screw can automatically guide the axis of the countersunk screw to align with the axis of the hole of the fixing bracket 3. On the one hand, this can ensure accurate installation position, and on the other hand, the conical head can be completely embedded in the conical hole, preventing the conical head of the countersunk screw from protruding outward. Moreover, the large contact area between the conical head and the conical hole can disperse the tightening pressure and reduce the risk of crushing of the tubular connector 2.

[0039] See Figure 6 As shown, the first mounting hole 11 also includes a second mounting section 112. An overflow groove 113 extending circumferentially around the opening of the second mounting section 112 is provided. The overflow groove 113 is connected to the second mounting section 112.

[0040] Specifically, when the sealant is applied to the second mounting section 112, excess sealant can flow into the overflow groove 113 along the periphery of the orifice. The overflow groove 113 can confine the sealant within a predetermined area, preventing the sealant from spreading outward to the outer surface of the audio equipment, thereby maintaining the cleanliness of the audio equipment's appearance and avoiding any impact on the appearance quality of the audio equipment due to sealant residue.

[0041] See Figures 6-7 As shown, both the first mounting section 111 and the second mounting section 112 have assembly gaps with the tubular connector 2, which are used to fill sealant. Specifically, in this embodiment, the sealant is AB glue.

[0042] See Figure 4 and Figure 8 As shown, this embodiment also provides an audio device, including the above-mentioned airtight structure and fixing bracket 3, wherein the fixing bracket 3 is at least partially inserted into the tubular connector 2.

[0043] Specifically, the fixed bracket 3 includes a first fixed body 31 and a second fixed body 32. The second fixed body 32 is connected to the first fixed body 31. When projected orthogonally along the axial direction of the second fixed body 32, the projected area of ​​the first fixed body 31 is larger than the projected area of ​​the second fixed body 32.

[0044] The first fixing body 31 is provided with multiple connection holes for connecting to the TV 5, and the diameter of the second fixing body 32 is less than or equal to the diameter of the second mounting hole 2a. This design allows the second fixing body 32 to pass into the second mounting hole 2a.

[0045] To further illustrate this point, this embodiment also provides a method for assembling the audio equipment and the television 5, as detailed below: The mounting bracket 3 is first fixed to the bottom of the TV 5 with screws, and the second fixing body 32 of the mounting bracket 3 protrudes outward. One end of the tubular connector 2 is snapped into the first mounting section 111, and the other end of the tubular connector 2 is inserted into the audio equipment through the first mounting section 111 located at the bottom of the audio equipment, and then inserted into the second mounting section 112 located at the top of the audio equipment. Then, the assembly gap between the tubular connector 2 and the first mounting section 111 and the assembly gap between the tubular connector 2 and the second mounting section 112 are filled with AB glue to achieve a sealed connection. After that, the second fixing body 32 of the mounting bracket 3 is inserted into the second assembly hole 2a of the tubular connector 2. Finally, the shank of the countersunk screw passes through the through hole 213 and is threaded to the second fixing body 32 located in the second assembly hole 2a to fix the audio equipment to the bottom of the TV 5.

[0046] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An airtight structure for an audio device, characterized in that, include: A horn cavity, wherein the horn cavity is provided with a first mounting hole; A tubular connector is installed in the first assembly hole, and the tubular connector and the horn cavity are sealed together. The tubular connector has a second assembly hole that extends axially along the tubular connector.

2. The airtight structure of the audio equipment according to claim 1, characterized in that, The tubular connector includes: First matrix; The second substrate is integrally formed with the first substrate, and the diameter of the first substrate is larger than the diameter of the second substrate; The first mounting hole includes a first mounting section, which includes a first base hole and a second base hole that are interconnected. The diameter of the first base hole is larger than the diameter of the second base hole. The first substrate is at least partially located within the first base hole, and the second substrate is at least partially located within the second base hole.

3. The airtight structure of the audio equipment according to claim 2, characterized in that, The first substrate has a through hole coaxially arranged with the second assembly hole. The through hole and the second assembly hole are connected. The diameter of the through hole gradually decreases along the direction toward the second substrate.

4. The airtight structure of the audio equipment according to claim 3, characterized in that, The through hole is a conical hole.

5. The airtight structure of the audio equipment according to claim 3, characterized in that, Both the cross-section of the first substrate and the cross-section of the second substrate are circular.

6. The airtight structure of the audio equipment according to claim 3, characterized in that, The airtight structure further includes fasteners, which include: head; A rod portion, wherein the rod portion is connected to the head portion; The head is embedded in the through hole, and the rod is fastened to the fixing bracket located in the second assembly hole.

7. The airtight structure of the audio equipment according to claim 2, characterized in that, The first assembly hole also includes a second mounting section, and an overflow groove is provided around the opening of the second mounting section, and the overflow groove is connected to the second mounting section.

8. The airtight structure of the audio equipment according to claim 7, characterized in that, Both the first mounting section and the second mounting section have an assembly gap with the tubular connector, and the assembly gap is used to fill the sealant.

9. An audio device, characterized in that, The invention includes the airtight structure and fixing bracket as described in any one of claims 1 to 7, wherein the fixing bracket is at least partially inserted inside the tubular connector.

10. The audio device according to claim 9, characterized in that, The fixing bracket includes: First fixed body; The second fixing body is connected to the first fixing body. The projection of the second fixing body along the axial direction of the second fixing body is orthogonal, and the projection area of ​​the first fixing body is larger than the projection area of ​​the second fixing body. The first fixing body is provided with a plurality of connection holes for connecting to a television, and the diameter of the second fixing body is less than or equal to the diameter of the second mounting hole.

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