Air pipe assembly for sound box

Abstract

The utility model relates to the technical field of sound boxes, in particular to an air duct assembly for a sound box. Comprising a sound box body and an air pipe assembly installed in the sound box body. The air pipe assembly comprises a first air pipe shell, a second air pipe shell and a first separation net, the first air pipe shell and the second air pipe shell are assembled together and define an inner cavity, and first limiting grooves are formed in the side faces, facing the inner cavity, of the first air pipe shell and the second air pipe shell; after the first air pipe shell and the second air pipe shell are assembled together, the edge of the first separation net can be inserted into the first limiting groove. Compared with the prior art, by arranging the first air pipe shell and the second air pipe shell which can be assembled together, after the first air pipe shell and the second air pipe shell are assembled, the first separation net can be inserted into the first limiting groove to be fixed, and the first separation net does not need to be fixed in an adhesive or welding mode; therefore, the assembling procedure of the first separation net is simplified, and the production efficiency of the air pipe assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of speakers, in particular to an air duct assembly for a speaker. Background Art

[0002] A speaker air duct (i.e., a phase inverter) is a component made of some plastics or papers, and its function is to enhance the bass in music equipment and audio systems. The air duct generates sound by vibrating and compressing different airflows. At present, there are various types of speaker air ducts on the market, and common ones include air ducts of different shapes such as circular and square. In different scenarios, selecting different types of speaker air ducts can obtain a more realistic sound effect.

[0003] The inventor found in the actual R & D process that for some speakers equipped with air ducts, a mesh or metal partition net usually needs to be pasted at the end of the air duct opening to prevent foreign objects from falling into the speaker interior from the air duct. However, due to the lack of corresponding automated equipment for glue application operations, manual glue application and net pasting are required, resulting in very low production efficiency. At the same time, due to the use of the glue bonding method, once the speaker is used in an environment with a temperature higher than 60 degrees, the glue will soften, causing the net to easily fall off, and the use reliability is poor.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the Utility Model

[0005] In view of this, in view of the deficiencies of the existing technology, the main purpose of the utility model is to provide an air duct assembly for a speaker, which effectively solves the technical defects of low production efficiency and poor reliability in the existing technology when using the method of pasting a mesh on the air duct.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: an air duct assembly for a speaker, including a speaker box body and an air duct assembly installed in the speaker box body; the air duct assembly includes a first air duct shell, a second air duct shell, and a first partition net. The first air duct shell and the second air duct shell are assembled together with each other to enclose an inner cavity, and a first limiting groove is provided on one side surface of the first air duct shell and the second air duct shell facing the inner cavity. After the first air duct shell and the second air duct shell are assembled together with each other, the edge of the first partition net can be inserted into the first limiting groove.

[0007] The beneficial effects of the air duct assembly for a speaker provided by this application are as follows: Compared with the prior art, by providing a first air duct shell and a second air duct shell that can be assembled together, when the first air duct shell and the second air duct shell are assembled, the first partition net can be inserted into the first limiting groove for fixation, eliminating the need to use adhesives or welding to fix the first partition net, thus simplifying the assembly process of the first partition net and improving the production efficiency of the air duct assembly. At the same time, since only the first limiting groove is used to restrict the assembly position of the first partition net, even if the usage environment of the speaker exceeds 60 degrees, the first partition net will not fall off, ensuring that the first partition net can effectively isolate foreign objects from falling into the speaker interior through the inner cavity, thereby enhancing the usage reliability of the air duct assembly.

[0008] As a preferred solution: One end of the first air duct shell and the second air duct shell is a first opening, and the other end is a second opening, and the first opening and the second opening communicate with the inner cavity.

[0009] As a preferred solution: The first limiting groove is provided at the first opening and / or the second opening.

[0010] As a preferred solution: At the first opening and / or the second opening, a first baffle and a second baffle are provided at a front-back interval, and the first baffle and the second baffle enclose the first limiting groove.

[0011] As a preferred solution: Between the opposite side surfaces of the first air duct shell and the second air duct shell, one is provided with a first assembly convex portion, and the other is provided with a first assembly concave groove; when the first air duct shell and the second air duct shell are assembled with each other, the first assembly convex portion is inserted into the first assembly concave groove.

[0012] As a preferred solution: The height of the first assembly convex portion is greater than the depth of the first assembly concave groove. After the first assembly convex portion is inserted into the first assembly concave groove, the opposite side surfaces of the first air duct shell and the second air duct shell enclose a first welding notch.

[0013] As a preferred solution: Between the opposite side surfaces of the first air duct shell and the second air duct shell, one is provided with a first positioning post, and the other is provided with a first positioning hole; when the first air duct shell and the second air duct shell are assembled with each other, the first positioning post is inserted into the first positioning hole.

[0014] As a preferred solution: The first air duct shell and the second air duct shell are arranged in a left-right mirror image, and the opposite side surfaces of the first air duct shell and the second air duct shell coincide with the central axis of the inner cavity.

[0015] As a preferred solution: The outer side surfaces of the first air duct shell and the second air duct shell are provided with a first base, and the first base is provided with a first through hole; the inner side of the speaker box is provided with a second base, and the second base is provided with a first screw hole; when the air duct assembly is installed in the speaker box, the first screw hole and the first through hole are coaxially arranged.

[0016] As a preferred solution: the first partition net is a metal partition net or a cloth partition net. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a three-dimensional structural schematic diagram of an air duct assembly for a speaker installed on a speaker cabinet;

[0019] Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the air duct assembly for a speaker installed on the speaker cabinet from another angle as shown;

[0020] Figure 3 is Figure 2 an exploded view of the speaker cabinet and the air duct assembly as shown;

[0021] Figure 4 is Figure 3 an exploded view of the air duct assembly as shown;

[0022] Figure 5 is Figure 3 the front view of the air duct assembly as shown;

[0023] Figure 6 is Figure 5 a cross-sectional view taken along line A-A of the air duct assembly as shown;

[0024] Figure 7 is Figure 6 a partially enlarged view at position A of the air duct assembly as shown;

[0025] Figure 8 is Figure 6 a partially enlarged view at position B of the air duct assembly as shown.

[0026] Among them, the reference numerals in the drawings:

[0027] 10, speaker cabinet; 11, second base; 12, first screw hole; 13, first through hole;

[0028] 20, air duct assembly; 21, first air duct shell; 22, second air duct shell; 23, first partition net; 24, inner cavity; 241, first opening; 242, second opening;

[0029] 25. First limiting groove; 251. First baffle; 252. Second baffle; 26. First assembly convex part; 27. First assembly groove; 28. First welding notch; 29. First positioning post; 210. First positioning hole; 220. First base; 230. First perforation. Detailed implementation manners

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further elaborates on this application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this 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 therefore cannot be understood as a limitation to this application.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood 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 one or more of such features. In the description of this application, "a plurality of" means two or more unless otherwise specifically defined.

[0034] In order to make the purpose, technical solution and advantages of this utility model clearer and more understandable, the following further elaborates on this utility model in combination with the accompanying drawings and embodiments.

[0035] Please refer to Figures 1 to 8 together, and now describe the air duct assembly 20 for a speaker provided in the embodiments of this application. The air duct assembly 20 for a speaker includes: a speaker box body 10 and an air duct assembly 20.

[0036] The air duct assembly 20 includes a first air duct shell 21, a second air duct shell 22, and a first partition net 23. The first air duct shell 21 and the second air duct shell 22 are assembled together with each other to enclose an inner cavity 24. A first limiting groove 25 is provided on one side surface of the first air duct shell 21 and the second air duct shell 22 facing the inner cavity 24. When the first air duct shell 21 and the second air duct shell 22 are assembled together with each other, the edge of the first partition net 23 can be inserted into the first limiting groove 25. Specifically, by providing the first air duct shell 21 and the second air duct shell 22 that can be assembled together with each other, after the first air duct shell 21 and the second air duct shell 22 are assembled, the first partition net 23 can be inserted into the first limiting groove 25 for fixation, without the need to use glue or welding to fix the first partition net 23, thereby simplifying the assembly process of the first partition net 23 to improve the production efficiency of the air duct assembly 20. At the same time, since only the first limiting groove 25 is used to limit the assembly position of the first partition net 23, even if the usage environment of the speaker exceeds 60 degrees, it will not cause the first partition net 23 to fall off, ensuring that the first partition net 23 can effectively isolate foreign objects from the outside from falling into the speaker through the inner cavity 24, thereby improving the usage reliability of the air duct assembly 20.

[0037] In some embodiments of the present application, one end of the first air duct shell 21 and the second air duct shell 22 is a first opening 241, and the other end is a second opening 242. The first opening 241 and the second opening 242 communicate with the inner cavity 24. The first limiting groove 25 is provided at the first opening 241 and / or the second opening 242. That is to say, the first partition net 23 can be provided at the position where the first opening 241 is located, or at the position where the second opening 242 is located, or at the positions where both the first opening 241 and the second opening 242 are located. As long as it can be achieved, it is sufficient to isolate foreign objects from the outside from entering the speaker through the inner cavity 24 by the first partition net 23.

[0038] It should be noted here that the first partition net 23 is a metal partition net or a cloth partition net. The first partition net 23 is provided with a plurality of through holes penetrating its front and rear surfaces. Since only the first limiting groove 25 is required to complete the fixed installation of the first partition net 23, whether a metal partition net or a cloth partition net is used, the first partition net 23 does not need to be fixed by welding or gluing after assembly.

[0039] Specifically, a first baffle 251 and a second baffle 252 are provided at the first opening 241 and / or the second opening 242 at a front-rear interval. The first baffle 251 and the second baffle 252 enclose the first limiting groove 25. When assembling the first partition net 23, first insert one side edge of the first partition net 23 into the first limiting groove 25 of the first air duct shell 21 or the second air duct shell 22, and then assemble the first air duct shell 21 and the second air duct shell 22 together, while inserting the other side of the first partition net 23 into the first limiting groove 25, and the assembly operation of the first partition net 23 can be completed.

[0040] In some other embodiments of the present application, between the opposite side surfaces of the first air duct housing 21 and the second air duct housing 22, one is provided with a first assembly convex portion 26, and the other is provided with a first assembly groove 27; when the first air duct housing 21 and the second air duct housing 22 are assembled with each other, the first assembly convex portion 26 is inserted into the first assembly groove 27. Preferably, the height of the first assembly convex portion 26 is greater than the depth of the first assembly groove 27. After the first assembly convex portion 26 is inserted into the first assembly groove 27, the opposite side surfaces of the first air duct housing 21 and the second air duct housing 22 enclose a first welding notch 28.

[0041] Specifically, by providing the first assembly convex portion 26 and the first assembly groove 27, the accuracy after the assembly of the first air duct housing and the second air duct housing 22 can be improved, and the surface of the inner cavity 24 can be ensured to be smooth. At the same time, since the height of the first assembly convex portion 26 is greater than the depth of the first assembly groove 27, after the first air duct housing 21 and the second air duct housing 22 are assembled, a first welding notch 28 is formed between the first air duct housing 21 and the second air duct housing 22, so as to facilitate subsequent ultrasonic welding operations, so that after the first air duct housing 21 and the second air duct housing 22 complete the welding operation, an inner cavity 24 and an outer surface with higher surface flatness are obtained.

[0042] Preferably, the height of the first assembly convex portion 26 is 0.5 mm - 1 mm greater than the depth of the first assembly groove 27, and it is adaptively modified according to the actual sizes of the first air duct housing 21 and the second air duct housing 22.

[0043] More specifically, between the opposite side surfaces of the first air duct housing 21 and the second air duct housing 22, one is provided with a first positioning post 29, and the other is provided with a first positioning hole 210; when the first air duct housing 21 and the second air duct housing 22 are assembled with each other, the first positioning post 29 is inserted into the first positioning hole 210. The first air duct housing 21 and the second air duct housing 22 are arranged in a left-right mirror image. The opposite side surfaces of the first air duct housing 21 and the second air duct housing 22 coincide with the central axis of the inner cavity 24; by providing the first air duct housing 21 and the second air duct housing 22 arranged in a left-right mirror image, the same set of molds can be used for injection molding, reducing production costs.

[0044] In some other embodiments of the present application, the outer side surfaces of the first air duct housing 21 and the second air duct housing 22 are provided with a first base 220, and the first base 220 is provided with a first through hole 230; the inner side of the speaker box 10 is provided with a second base 11, and the second base 11 is provided with a first screw hole 12; when the air duct assembly 20 is installed in the speaker box 10, the first screw hole 12 and the first through hole 230 are coaxially arranged; by passing a screw through the first through hole 230 and screwing it into the first screw hole 12, the air duct assembly 20 can be fixedly installed on the speaker box 10; subsequently, by installing the back plate on the rear side of the speaker box 10, the assembly operation of the entire speaker can be completed.

[0045] It should be noted here that the front end of the speaker box 10 is provided with a first through hole 13 connected to the interior thereof. After the duct assembly 20 is installed in the speaker box 10, the first opening 241 or the second opening 242 of the duct assembly 20 is conductively connected to the first through hole 13 so that the sound flow inside the speaker can be transmitted from the first through hole 13 to the outside through the inner cavity 24.

[0046] The above are only preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for the purpose of explaining the principles of the present invention, and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention, and other specific implementation methods of the present invention that can be associated with by technicians in this field without creative labor, should be included in the scope of protection of the present invention.

Claims

1. A duct assembly for a speaker, comprising a speaker box (10) and a duct assembly (20) installed in the speaker box (10); characterized in that: The air duct assembly (20) comprises a first air duct shell (21), a second air duct shell (22) and a first partition net (23); the first air duct shell (21) and the second air duct shell (22) are assembled together and surround an inner cavity (24); a first limiting groove (25) is provided on a side of the first air duct shell (21) and the second air duct shell (22) facing the inner cavity (24); when the first air duct shell (21) and the second air duct shell (22) are assembled together, the edge of the first partition net (23) can be inserted into the first limiting groove (25).

2. The air duct assembly for a speaker according to claim 1, characterized in that: One end of the first air duct shell (21) and the second air duct shell (22) is a first opening (241), and the other end is a second opening (242); the first opening (241) and the second opening (242) are connected to the inner cavity (24).

3. The air duct assembly for a speaker according to claim 2, characterized in that: The first limiting groove (25) is provided at the first opening (241) and / or the second opening (242).

4. The air duct assembly for a speaker according to claim 2 or 3, characterized in that: A first baffle plate (251) and a second baffle plate (252) are arranged at a front-to-back spacing at the first opening (241) and / or the second opening (242), and the first baffle plate (251) and the second baffle plate (252) surround a first limiting groove (25).

5. The air duct assembly for a speaker according to any one of claims 1 to 3, characterized in that: Between opposite sides of the first air duct shell (21) and the second air duct shell (22), one is provided with a first assembly protrusion (26), and the other is provided with a first assembly groove (27); When the first air duct shell (21) and the second air duct shell (22) are assembled with each other, the first assembly protrusion (26) is inserted into the first assembly groove (27).

6. The air duct assembly for a speaker according to claim 5, characterized in that: The height of the first assembly protrusion (26) is greater than the depth of the first assembly groove (27); when the first assembly protrusion (26) is inserted into the first assembly groove (27), the opposite sides of the first air duct shell (21) and the second air duct shell (22) form a first welding notch (28).

7. The air duct assembly for a speaker according to claims 1-3, characterized in that: Between opposite sides of the first air duct shell (21) and the second air duct shell (22), one is provided with a first positioning column (29), and the other is provided with a first positioning hole (210); When the first air duct shell (21) and the second air duct shell (22) are assembled with each other, the first positioning column (29) is inserted into the first positioning hole (210).

8. The air duct assembly for a speaker according to claim 1, characterized in that: The first air duct shell (21) and the second air duct shell (22) are arranged in mirror images on the left and right, and the opposite sides of the first air duct shell (21) and the second air duct shell (22) are arranged to coincide with the central axis of the inner cavity (24).

9. The air duct assembly for a speaker according to claim 1 or 8, characterized in that: A first base (220) is provided on the outer side surfaces of the first air duct shell (21) and the second air duct shell (22), and the first base (220) is provided with a first through hole (230); A second base (11) is provided on the inner side of the speaker box (10), and a first screw hole (12) is provided on the second base (11); when the air duct assembly (20) is installed in the speaker box (10), the first screw hole (12) and the first through hole (230) are coaxially arranged.

10. The air duct assembly for a speaker according to claim 1, characterized in that: The first separator (23) is a metal separator or a cloth separator.

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