Loudspeaker sealing structure and sound box thereof

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker sealing structure and a sound box thereof, the loudspeaker sealing structure comprises a sound cavity upper cover, a loudspeaker body, damping mucilage glue, sealing mucilage glue and a sound cavity lower cover, and the sound cavity upper cover and the sound cavity lower cover are encircled to form a sound cavity for accommodating the loudspeaker body; the loudspeaker body comprises a vibrating diaphragm, a basin stand and a magnet, the magnet is installed at the rear end of the basin stand, the vibrating diaphragm is fixedly installed in the basin stand, an annular table is formed at the rear end of the basin stand, and the damping adhesive is installed on the annular table; the front end of the sound cavity lower cover is provided with a first installation groove, and the sealing adhesive is installed in the first installation groove. The sound cavity upper cover extrudes the sealing mucilage glue, and the sound cavity lower cover abuts against the damping mucilage glue. According to the loudspeaker sealing structure, mounting lugs on the loudspeaker body are omitted, the loudspeaker box adopting the loudspeaker sealing structure can be more miniaturized, the market requirement for miniaturization of the appearance size of a loudspeaker box product is met, the sealing requirement of the loudspeaker box is also met, and the loudspeaker sealing structure has better economic benefits.

Description

Technical Field

[0001] The utility model belongs to the technical field of loudspeakers, and in particular relates to a loudspeaker sealing structure and a sound box thereof. Background Art

[0002] A speaker is a device that converts audio signals into sound. Generally speaking, it refers to a speaker box or subwoofer box with a built-in power amplifier that amplifies the audio signal and then plays it back through the speaker itself, making the sound louder.

[0003] A speaker primarily consists of a speaker and a cabinet, with the speaker serving as the sound-producing component. As the market evolves, the demand for higher-quality sound is coupled with a demand for smaller dimensions. Existing speaker mounting methods typically use external mounting ears on a frame, securing the speaker to the cabinet with screws. However, these ears significantly increase the product's footprint, limiting the potential for smaller speaker designs and failing to meet market demand for smaller speaker dimensions.

[0004] Therefore, in order to solve the above technical problems, the present invention provides a speaker sealing structure, in which the speaker eliminates the mounting ears. The speaker adopting this speaker sealing structure can be more miniaturized, meeting the market demand for miniaturized external dimensions of speaker products. Utility Model Content

[0005] In view of the above problems existing in the prior art, the utility model provides a speaker sealing structure, including a sound cavity upper cover, a speaker body, a shock-absorbing adhesive, a sealing adhesive and a sound cavity lower cover;

[0006] The speaker body includes a diaphragm, a basin and a magnet. The magnet is installed at the rear end of the basin. The diaphragm is fastened in the basin. A circular platform is formed at the rear end of the basin. The shock-absorbing adhesive is installed on the circular platform.

[0007] A first mounting groove is provided at the front end of the lower cover of the sound cavity, and the sealing adhesive is installed in the first mounting groove;

[0008] The front end of the sound cavity upper cover is formed as a sound-transmitting hole, the rear end of the sound-transmitting hole is turned inward to form a first bone position, the front end of the basin frame is formed with a first boss, and the first bone position abuts against the first boss;

[0009] The rear end of the sound cavity upper cover is convexly formed with a second bone portion, and the second bone portion is embedded in the first installation groove for installation and extrusion of the sealing adhesive;

[0010] A first groove is provided at the front end of the lower cover of the sound cavity, the first groove accommodates the magnet, and the end surface of the first groove forms a third bone position, the third bone position abuts against the shock-absorbing adhesive;

[0011] A plurality of limiting portions are formed on the inner side of the front end of the sound cavity upper cover, and the front edge of the basin frame abuts against the limiting portions;

[0012] The front end of the sound cavity lower cover is provided with a plurality of first threaded holes, and the rear end of the sound cavity upper cover is provided with a plurality of first through holes. The first through holes are aligned with the first threaded holes and are fastened together by screws. The sound cavity upper cover and the sound cavity lower cover together form a sound cavity for accommodating the speaker body.

[0013] Optionally, in some embodiments, a second mounting slot is provided at the rear end of the sound cavity lower cover, and a battery is installed in the second mounting slot, and the battery provides power for the speaker body.

[0014] Optionally, the lower cover of the sound cavity is provided with a plurality of first mounting posts, and the first mounting posts are used to mount a circuit board, and the circuit board is electrically connected to the battery and the speaker body respectively.

[0015] Optionally, the lower cover of the sound cavity is provided with a wire threading hole, and a wire passes through the wire threading hole to connect the speaker body and the circuit board, and the wire threading hole is filled with sealant.

[0016] Optionally, the battery is mounted in the second mounting groove by bonding with double-sided tape; and / or, the circuit board is provided with a plurality of second through holes, and the second through holes are adapted to the first mounting posts and are fastened by screws.

[0017] Optionally, in some embodiments, the shock-absorbing adhesive is a single-sided EVA adhesive, and the adhesive surface of the shock-absorbing adhesive is adhered to the surface of the circular table; and / or,

[0018] The sealing adhesive is a single-sided EVA adhesive, and the adhesive surface of the sealing adhesive is adhered to the bottom of the first installation groove.

[0019] Optionally, in some embodiments, a plurality of first avoidance grooves are provided on the periphery of the sound cavity upper cover, the first avoidance grooves are recessed inward on the main body of the sound cavity upper cover, and the first through holes are provided along the groove direction of the first avoidance grooves.

[0020] In addition, the present invention also provides a speaker box, comprising the above-mentioned speaker sealing structure, a shell and a sound-transmitting layer, wherein the speaker sealing structure is firmly mounted in the shell, and the sound-transmitting layer firmly encapsulates the shell.

[0021] Optionally, in some embodiments, a plurality of second mounting posts are provided on the inner side of the shell, a plurality of third through holes are provided on the lower cover of the sound cavity, and the second mounting posts are aligned with the third through holes and are fastened by screws.

[0022] Optionally, in some embodiments, a decorative layer is further included, and the decorative layer is wrapped around the surface of the sound-transmitting layer.

[0023] The technical solution of the utility model has the following advantages or beneficial effects:

[0024] The speaker sealing structure provided by the utility model includes a sound cavity upper cover, a speaker body, a shock-absorbing adhesive, a sealing adhesive, and a sound cavity lower cover. The sound cavity upper cover and the sound cavity lower cover together form a sound cavity for accommodating the speaker body. The speaker body includes a diaphragm, a basin, and a magnet. The magnet is mounted at the rear end of the basin, and the diaphragm is fastened to the basin. The rear end of the basin is formed with a circular platform, and the shock-absorbing adhesive is mounted on the circular platform. The front end of the sound cavity lower cover is provided with a first mounting groove, and the sealing adhesive is mounted in the first mounting groove. The sound cavity upper cover squeezes the sealing adhesive, and the sound cavity lower cover abuts the shock-absorbing adhesive. The mounting ears are eliminated from the speaker body. Speakers using this speaker sealing structure can be more compact, meeting the market demand for miniaturized speaker products and the sealing requirements of speaker products, thereby achieving better economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The embodiments of the present invention will be described more fully with reference to the accompanying drawings, which are for illustration and description only and are not intended to limit the scope of the present invention.

[0026] Figure 1 A three-dimensional schematic diagram of a speaker structure in the prior art;

[0027] Figure 2 It is a cross-sectional schematic diagram of the speaker sealing structure of the present invention;

[0028] Figure 3 This is an exploded schematic diagram of the speaker sealing structure of the present invention;

[0029] Figure 4 is a three-dimensional schematic diagram of the speaker body;

[0030] Figure 5 This is a three-dimensional schematic diagram of the sound cavity cover;

[0031] Figure 6 is another three-dimensional schematic diagram of the sound cavity cover;

[0032] Figure 7 This is a three-dimensional schematic diagram of the lower cover of the sound cavity;

[0033] Figure 8 is another three-dimensional schematic diagram of the lower cover of the sound cavity;

[0034] Figure 9 A three-dimensional schematic diagram of a speaker box using the speaker sealing structure of the present invention;

[0035] Figure 10The figure is an exploded schematic diagram of a speaker box using the speaker sealing structure of the present invention.

[0036] Illustration:

[0037] 1. Sound cavity cover; 2. Speaker body; 3. Shock-absorbing adhesive; 4. Sealing adhesive; 5. Sound cavity cover;

[0038] 6. Sound cavity; 7. Diaphragm; 8. Basin frame; 9. Magnet; 10. Mounting ear;

[0039] 11. Circular platform; 12. First mounting groove; 13. Sound-transmitting hole; 14. First bone position; 15. First boss; 16. Second bone position; 17. First groove; 18. Third bone position; 19. Limiting portion; 20. First threaded hole;

[0040] 21. First through hole; 22. Second mounting slot; 23. Battery; 24. First mounting post; 25. Circuit board; 26. Threading hole; 27. Second through hole; 28. First avoidance slot; 29. ​​Third through hole;

[0041] 30. Speaker; 31. Housing; 32. Sound-transmitting layer; 33. Second mounting column; 34. Second avoidance groove;

[0042] 35. Decorative layer. DETAILED DESCRIPTION

[0043] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many other forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0044] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0045] In the description of this utility model, unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as commonly understood by those skilled in the art to which this utility model belongs. The terms used in this specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0046] In the description of this utility model, technical terms such as "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly indicate the number, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0047] like Figure 1 As shown, the speaker structure in the prior art is usually assembled by setting a mounting ear 10 on the edge of the basin frame 8. The mounting ear 10 occupies the design space, resulting in the miniaturization of the speaker product being limited and unable to meet market demand.

[0048] like Figure 2-8 As shown, the speaker sealing structure of the present invention includes an upper sound chamber cover 1, a speaker body 2, a shock-absorbing adhesive 3, a sealing adhesive 4, and a lower sound chamber cover 5. The upper sound chamber cover 1 and the lower sound chamber cover 5 together form a sound chamber 6 that accommodates the speaker body 2. The speaker body 2 includes a diaphragm 7, a basket 8, and a magnet 9. The magnet 9 is mounted at the rear end of the basket 8. The diaphragm 7 is securely mounted within the basket 8. The basket 8 has a circular platform 11 formed at the rear end, and the shock-absorbing adhesive 3 is mounted on the circular platform 11. The front end of the lower sound chamber cover 5 is provided with a first mounting groove 12, and the sealing adhesive 4 is mounted in the first mounting groove 12. The upper sound chamber cover 1 presses against the sealing adhesive 4, and the lower sound chamber cover 5 abuts against the shock-absorbing adhesive 3. The mounting ears 10 are eliminated from the speaker body 2. A speaker box 30 using this speaker sealing structure can be more compact, meeting the demand for smaller speaker dimensions and the sealing requirements of the speaker box 30, thus achieving better economic benefits.

[0049] Specifically, in this embodiment, the speaker body 2 is a sound-producing element. The speaker body 2 includes a diaphragm 7, a basin frame 8, and a magnet 9. The basin frame 8 is the main body of the speaker. The magnet 9 is installed at the rear end of the basin frame 8, and the diaphragm 7 is fastened to the basin frame 8. A circular platform 11 is formed at the rear end of the basin frame 8. Shock-absorbing adhesive 3 is installed on the circular platform 11. The shock-absorbing adhesive 3 is used to provide a buffering effect when the speaker body 2 vibrates and produces sound, thereby preventing the speaker body 2 from being damaged and affecting the sound quality. A first mounting groove 12 is provided at the front end of the sound cavity lower cover 5. The first mounting groove 12 is provided along the front end edge of the sound cavity lower cover 5. The sealing adhesive 4 is installed in the first mounting groove 12. The sealing adhesive 4 is used to seal the sound cavity upper cover 1 and the sound cavity lower cover 5, so that the speaker sealing structure meets the sealing requirements. Preferably, the shock-absorbing adhesive 3 is a single-sided EVA adhesive, the adhesive surface of which is adhered to the surface of the annular table 11; the sealing adhesive 4 is a single-sided EVA adhesive, the adhesive surface of which is adhered to the bottom of the first mounting groove 12. It should be noted that in some embodiments, the shock-absorbing adhesive 3 can be replaced by an accessory with a certain cushioning effect, such as a silicone pad or rubber pad, and the sealing adhesive 4 can be replaced by a sealing ring.

[0050] Furthermore, in this embodiment, the sound chamber cover 1 has a petal-like shape. A sound hole 13 is formed at the front end of the cover 1, and the rear end of the hole 13 is inverted to form a first rib 14, located along the edge of the hole 13. A first boss 15 is formed at the front end of the frame 8, located along the inner edge of the bell mouth of the frame 8. When the sound chamber cover 1 and the lower cover 5 are tightly assembled, the first rib 14 abuts against the first boss 15, with the vibrating bell mouth facing the front of the sound hole 13. The first rib 14 forms a primary seal on the first boss 15, meeting the sealing requirements of the speaker's sealing structure. A second rib 16 is formed on the rear end of the cover 1, protruding along the rear end surface. The second rib 16 fits into the first mounting groove 12 and compresses the sealing adhesive 4. The second rib 16 forms a secondary seal on the first mounting groove 12, meeting the sealing requirements of the speaker's sealing structure.

[0051] Furthermore, in this embodiment, the shape of the sound cavity lower cover 5 is adapted to the shape of the sound cavity upper cover 1. A first groove 17 is provided at the front end of the sound cavity lower cover 5. The first groove 17 is located in the middle of the sound cavity lower cover 5. The first groove 17 is used to accommodate the magnet 9. The end surface of the first groove 17 is formed as a third bone position 18. The third bone position 18 abuts against the shock-absorbing adhesive 3, and the third bone position 18 does not over-extrude the shock-absorbing adhesive 3. The shock-absorbing adhesive 3 provides a buffering effect for the speaker body 2, preventing the speaker body 2 from contacting the third bone position 18 when the speaker body 2 vibrates and produces sound, thereby ensuring that the speaker body 2 is not damaged and the sound effect of the speaker body 2 is not affected.

[0052] Furthermore, in this embodiment, a plurality of stoppers 19 are provided on the inner side of the front end of the upper sound chamber cover 1. When the upper sound chamber cover 1 is tightly connected to the lower sound chamber cover 5, the front edge or side of the basin frame 8 abuts against the stoppers 19. The stoppers 19 limit the basin frame 8, preventing the speaker body 2 from shaking inside the upper sound chamber cover 1, maintaining the stability of the speaker body 2, and not affecting the sound quality of the speaker body 2. It should be noted that in actual use, the stoppers 19 exert sufficient clamping force on the edge of the basin frame 8, and the speaker body 2 cannot shake in the sound chamber 6.

[0053] Furthermore, in the present embodiment, a plurality of first threaded holes 20 are provided at the front end of the sound cavity lower cover 5, and a plurality of first through holes 21 are provided at the rear end of the sound cavity upper cover 1. The first through holes 21 are aligned with the first threaded holes 20 and are fastened together by screws. The sound cavity upper cover 1 and the sound cavity lower cover 5 together form a sound cavity 6 for accommodating the speaker body 2. Preferably, both the sound cavity upper cover 1 and the sound cavity lower cover 5 can be made of plastic integral injection molding. It should be noted that, in the present embodiment, the basin frame 8 is not provided with mounting ears 10, but the third bone position 18 is used to abut against the shock-absorbing adhesive 3 so that the speaker body 2 is stabilized in the sound cavity 6, so that the outer dimensions of the basin frame 8 are designed to be smaller, thereby making the overall outer shape of the speaker 30 smaller, meeting the market demand for miniaturization of the speaker 30 product.

[0054] Furthermore, in some embodiments, in order to make the speaker sealing structure more miniaturized and more compact, a second mounting groove 22 is provided at the rear end of the sound cavity lower cover 5. The second mounting groove 22 is used to adapt the installation of the battery 23. The battery 23 provides power for the speaker body 2. The sound cavity lower cover 5 is provided with a plurality of first mounting posts 24. The first mounting posts 24 are used to adapt the installation of the circuit board 25. The circuit board 25 has wires that are electrically connected to the battery 23 and the speaker body 2 respectively. The sound cavity lower cover 5 is provided with a threading hole 26. The wires pass through the threading hole 26 to connect the speaker body 2 and the circuit board 25. The threading hole 26 is filled with sealant for packaging. Preferably, the battery 23 is mounted in the second mounting groove 22 by double-sided tape; the circuit board 25 is provided with a plurality of second through holes 27. The second through holes 27 are adapted to the first mounting posts 24 and are fastened by screws.

[0055] Furthermore, in some embodiments, to further miniaturize and compact the speaker sealing structure, a plurality of first avoidance grooves 28 are provided on the outer periphery of the sound cavity cover 1. The first avoidance grooves 28 are recessed inwardly on the main body of the sound cavity cover 1, and the first through holes 21 are arranged along the groove direction of the first avoidance grooves 28. This arrangement can also maximize the size of the speaker body 2. That is, for a speaker box 30 of the same external dimensions, the inwardly recessed first avoidance grooves 28 can accommodate a larger speaker body 2, thereby improving the performance of the speaker box 30 and achieving better economic benefits.

[0056] In addition, if Figure 9-10 The present invention also provides a speaker 30, including the above-mentioned speaker sealing structure, shell 31 and sound-transmitting layer 32. The speaker sealing structure is fastened and installed in the shell 31, the sound-transmitting layer 32 fastens and encapsulates the shell 31, and the horn mouth of the speaker body faces the sound-transmitting layer 32. Preferably, the shell 31 is made of ABS plastic or aluminum alloy material, and the sound-transmitting layer 32 can be a galvanized iron mesh or a mesh plastic part. The speaker 30 of this embodiment has a more miniaturized outer size and a good sealing effect, which meets the market demand for miniaturized outer size of the speaker 30 product and also meets the sealing requirements of the speaker 30, and has better economic benefits.

[0057] Furthermore, in some embodiments, in order to make the speaker 30 more miniaturized and compact, a plurality of second mounting posts 33 are provided on the inner side of the housing 31, a plurality of second avoidance grooves 34 are provided on the circuit board 25, a plurality of third through holes 29 are provided on the sound cavity lower cover 5, the second avoidance grooves 34 avoid the second mounting posts 33, and the second mounting posts 33 are aligned with the third through holes 29 and fastened together by screws.

[0058] Furthermore, in some embodiments, in order to improve the quality of the speaker 30 , the speaker 30 further includes a decorative layer 35 , which is wrapped around the outer surface of the sound-transmitting layer 32 .

[0059] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A speaker sealing structure, characterized in that: It includes the sound cavity upper cover, the speaker body, the shock-absorbing adhesive, the sealing adhesive and the sound cavity lower cover; The speaker body includes a diaphragm, a basin and a magnet. The magnet is installed at the rear end of the basin. The diaphragm is fastened in the basin. A circular platform is formed at the rear end of the basin. The shock-absorbing adhesive is installed on the circular platform. A first mounting groove is provided at the front end of the lower cover of the sound cavity, and the sealing adhesive is installed in the first mounting groove; The front end of the sound cavity upper cover is formed as a sound-transmitting hole, the rear end of the sound-transmitting hole is turned inward to form a first bone position, the front end of the basin frame is formed with a first boss, and the first bone position abuts against the first boss; The rear end of the sound cavity upper cover is convexly formed with a second bone portion, and the second bone portion is embedded in the first installation groove for installation and extrusion of the sealing adhesive; A first groove is provided at the front end of the lower cover of the sound cavity, the first groove accommodates the magnet, and the end surface of the first groove forms a third bone position, the third bone position abuts against the shock-absorbing adhesive; A plurality of limiting portions are formed on the inner side of the front end of the sound cavity upper cover, and the front edge of the basin frame abuts against the limiting portions; The front end of the sound cavity lower cover is provided with a plurality of first threaded holes, and the rear end of the sound cavity upper cover is provided with a plurality of first through holes. The first through holes are aligned with the first threaded holes and are fastened together by screws. The sound cavity upper cover and the sound cavity lower cover together form a sound cavity for accommodating the speaker body.

2. The speaker sealing structure according to claim 1, wherein: A second mounting slot is provided at the rear end of the sound cavity lower cover, and a battery is installed in the second mounting slot, and the battery provides power for the speaker body.

3. The speaker sealing structure according to claim 2, wherein: The lower cover of the sound cavity is provided with a plurality of first mounting posts, and the first mounting posts are used to mount a circuit board, and the circuit board is electrically connected to the battery and the speaker body respectively.

4. The speaker sealing structure according to claim 3, wherein: The lower cover of the sound cavity is provided with a wire threading hole, and a wire passes through the wire threading hole to connect the speaker body and the circuit board, and the wire threading hole is filled with sealant.

5. The speaker sealing structure according to claim 4, wherein: The battery is mounted in the second mounting groove by means of double-sided adhesive tape; and / or, The circuit board is provided with a plurality of second through holes, and the second through holes are adapted to fit the first mounting posts and are fastened by screws.

6. The speaker sealing structure according to claim 1, wherein: The shock-absorbing adhesive is a single-sided EVA adhesive, and the adhesive surface of the shock-absorbing adhesive is adhered to the surface of the circular table; and / or, The sealing adhesive is a single-sided EVA adhesive, and the adhesive surface of the sealing adhesive is adhered to the bottom of the first installation groove.

7. The speaker sealing structure according to claim 1, wherein: A plurality of first avoidance grooves are provided on the outer periphery of the sound cavity upper cover. The first avoidance grooves are recessed inwardly on the main body of the sound cavity upper cover. The first through holes are provided along the groove direction of the first avoidance grooves.

8. A speaker, characterized in that: It comprises a speaker sealing structure, a shell and a sound-transmitting layer as described in any one of claims 1 to 7, wherein the speaker sealing structure is firmly installed in the shell, and the sound-transmitting layer firmly encapsulates the shell.

9. The speaker as claimed in claim 8, characterized in that A plurality of second mounting posts are provided on the inner side of the shell, a plurality of third through holes are provided on the lower cover of the sound cavity, and the second mounting posts are aligned with the third through holes and are fastened by screws.

10. The speaker as claimed in claim 8, characterized in that It also includes a decorative layer, which is wrapped around the surface of the sound-transmitting layer.

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