Loudspeaker cabinet and loudspeaker

Abstract

The utility model belongs to loudspeaker technical field, concretely relates to a loudspeaker box and loudspeaker. The first annular muscle of utility model opens first through -hole, second annular muscle opens second through -hole, one of first through -hole and second through -hole is connected with the cavity and first annular cavity, another of first through -hole and second through -hole is connected with first annular cavity and loudspeaker box outside. Through using the loudspeaker box in the technical scheme, the airflow generated in the cavity in the loudspeaker box when the loudspeaker body works can flow into the first annular cavity through one of the first through -hole and the second through -hole, since the first annular cavity is formed by the first annular muscle and the second annular muscle, the first annular cavity path is longer, and the shape is tortuous, can block and reflect the airflow, finally flows out the loudspeaker box through another of the first through -hole and the second through -hole, adopts the loudspeaker box in the utility model, can reduce airflow velocity and eliminate airflow noise.

Description

Technical Field

[0001] This utility model belongs to the field of loudspeaker technology, specifically relating to a loudspeaker enclosure and a loudspeaker. Background Technology

[0002] When a subwoofer is working, the reciprocating motion of the composite cone does work on the air inside the speaker cabinet, causing the air to heat up and expand, resulting in the composite cone expanding and deforming. To prevent the composite cone from expanding and deforming during operation, a venting damping hole is provided on the cabinet to connect with the outside. However, this venting hole will generate airflow noise, which will interfere with the sound quality of the speaker itself. Utility Model Content

[0003] The purpose of this invention is to at least solve the problem of airflow noise generated during the operation of the speaker body within the existing speaker enclosure. This purpose is achieved through the following technical solution:

[0004] The first aspect of this utility model provides a loudspeaker enclosure, comprising:

[0005] First half-shell;

[0006] The second half-shell is fastened together with the first half-shell and the second half-shell to form an accommodating cavity. The first half-shell has a first annular rib protruding from one side toward the second half-shell and is connected to the second half-shell. The second half-shell has a second annular rib protruding from one side toward the first half-shell and is connected to the first half-shell, forming a first annular cavity between the second and the first annular rib. The first annular rib has a first through hole and the second annular rib has a second through hole. One of the first through hole and the second through hole connects the accommodating cavity and the first annular cavity, and the other of the first through hole and the second through hole connects the first annular cavity and the outside of the speaker enclosure.

[0007] By using the speaker enclosure in this technical solution, when the speaker body is working, the airflow generated by the cavity inside the speaker enclosure can flow into the first annular cavity through one of the first through hole and the second through hole. Since the first annular cavity is formed by the first annular rib and the second annular rib, the path of the first annular cavity is relatively long and the shape is tortuous, which can block and reflect the airflow. Finally, the airflow flows out of the speaker enclosure through the other of the first through hole and the second through hole. By using the speaker enclosure in this utility model, the airflow velocity can be reduced and airflow noise can be eliminated.

[0008] In addition, the speaker enclosure according to this utility model may also have the following additional technical features:

[0009] In some embodiments of this utility model, the first through hole and the second through hole are symmetrically distributed about the center line of the speaker enclosure.

[0010] In some embodiments of this utility model, a third annular rib is provided protruding from the side of the second half-shell facing the first half-shell. The second annular rib is located outside the first annular rib, and the third annular rib is located inside the first annular rib, forming a second annular cavity between the second and the first annular rib. A notch is formed between the third annular rib and the first half-shell, and the notch communicates with the receiving cavity. The second annular cavity communicates with the first through hole and the notch.

[0011] In some embodiments of this utility model, the notch is a ring structure.

[0012] In some embodiments of this utility model, the size of the notch ranges from 1 to 10 mm along the arrangement direction of the first half-shell and the second half-shell.

[0013] In some embodiments of this utility model, the first annular rib and the second half-shell are welded together;

[0014] And / or, the second annular rib and the first half-shell are welded together.

[0015] In some embodiments of this utility model, the diameter of the first through hole ranges from 1 to 10 mm;

[0016] And / or, the diameter of the second through hole ranges from 1 to 10 mm.

[0017] In some embodiments of this utility model, the first half-shell or the second half-shell is provided with a mounting hole, which is used to mount the speaker body.

[0018] In some embodiments of this utility model, the first half-shell includes a first shell portion and a first annular portion. The first shell portion has a first opening on the side facing the second half-shell. The first annular portion is disposed at the circumferential edge of the first opening. The first annular portion is provided with a first annular rib protruding towards the second half-shell.

[0019] And / or, the second half-shell includes a second shell portion and a second annular portion, the second shell portion having a second opening on the side facing the first half-shell, the second annular portion being disposed at the circumferential edge of the second opening, and the second annular portion being provided with a second annular rib protruding towards the first half-shell.

[0020] The second aspect of this utility model provides a loudspeaker, comprising:

[0021] Speaker body;

[0022] The speaker enclosure is the speaker enclosure described above, and the speaker enclosure has a mounting hole, with the speaker body disposed in the mounting hole. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 A schematic cross-sectional view of a speaker enclosure according to an embodiment of the present invention is shown.

[0025] Figure 2 for Figure 1 Enlarged structural diagram of section B in the middle;

[0026] Figure 3 for Figure 1 Enlarged structural diagram of section C;

[0027] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0028] Figure 5 for Figure 4 Enlarged structural diagram of section D in the middle;

[0029] Figure 6 for Figure 4 Enlarged structural diagram of section E.

[0030] The labels in the attached diagram are as follows:

[0031] 10. First half-shell; 11. First shell portion; 12. First annular portion; 13. First annular rib; 131. First through hole;

[0032] 20. Second half-shell; 21. Second shell portion; 22. Second annular portion; 23. Second annular rib; 231. Second through hole; 24. Third annular rib; 241. Notch;

[0033] 30. Receptacle cavity;

[0034] 40. First annular cavity;

[0035] 50. Second annular cavity;

[0036] 200. Speaker body. Detailed Implementation

[0037] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0038] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0040] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0041] When a subwoofer is working, the reciprocating motion of the composite cone does work on the air inside the speaker cabinet, causing the air to heat up and expand, resulting in the composite cone expanding and deforming. To prevent the composite cone from expanding and deforming during operation, a venting damping hole is provided on the cabinet to connect with the outside. However, this venting hole will generate airflow noise, which will interfere with the sound quality of the speaker itself.

[0042] like Figure 1 , 2 As shown in Figure 3, this utility model proposes a loudspeaker enclosure and a loudspeaker. The loudspeaker enclosure of this utility model includes a first half-shell 10 and a second half-shell 20. The first half-shell 10 and the second half-shell 20 are fastened together and enclose a receiving cavity 30. A first annular rib 13 protrudes from the side of the first half-shell 10 facing the second half-shell 20 and is connected to the second half-shell 20. A second annular rib 23 protrudes from the side of the second half-shell 20 facing the first half-shell 10 and is connected to the first half-shell 10, forming a first annular cavity 40 between the second half-shell 10 and the first annular rib 13. The first annular rib 13 has a first through hole 131 and the second annular rib 23 has a second through hole 231. One of the first through hole 131 and the second through hole 231 connects the receiving cavity 30 and the first annular cavity 40, and the other of the first through hole 131 and the second through hole 231 connects the first annular cavity 40 and the outside of the loudspeaker enclosure.

[0043] By using the speaker enclosure in this technical solution, when the speaker body 200 is working, the airflow generated by the cavity 30 inside the speaker enclosure can flow into the first annular cavity 40 through one of the first through hole 131 and the second through hole 231. Since the first annular cavity 40 is formed by the first annular rib 13 and the second annular rib 23, the path of the first annular cavity 40 is relatively long and the shape is tortuous, which can block and reflect the airflow. Finally, the airflow flows out of the speaker enclosure through the other of the first through hole 131 and the second through hole 231. By using the speaker enclosure in this utility model, the airflow velocity can be reduced and the airflow noise can be eliminated.

[0044] Specifically, in this embodiment, the first annular rib 13 is located inside the second annular rib 23, the first through hole 131 on the first annular rib 13 connects the accommodating cavity 30 and the first annular cavity 40 respectively, and the second through hole 231 connects the first annular cavity 40 and the speaker enclosure.

[0045] In some embodiments of this utility model, such as Figure 4As shown, the first through hole 131 and the second through hole 231 are symmetrically distributed about the center line of the speaker enclosure. In this embodiment, the above arrangement maximizes the distance between the first through hole 131 and the second through hole 231, so that the airflow flowing from the accommodating cavity 30 into the first through hole 131 will travel a longer path through the first annular cavity 40 before reaching the second through hole 231. Because the path length of the first annular cavity 40 is long and its shape is tortuous and complex, the airflow can be blocked and reflected multiple times, greatly reducing the flow velocity, eliminating airflow noise, and finally flowing out of the speaker enclosure through the second through hole 231.

[0046] In some embodiments of this utility model, the axial direction of the first through hole 131 and the axial direction of the second through hole 231 intersect or coincide. If the cross-section of the speaker enclosure is a perfect circle, the axial direction of the first through hole 131 and the axial direction of the second through hole 231 are coincident, which maximizes the distance between the first through hole 131 and the second through hole 231. This allows for multiple obstructions and reflections of the airflow, significantly reducing the flow velocity and eliminating airflow noise.

[0047] If the cross-section of the speaker body 200 system is not a perfect circle, and the positions of the first through hole 131 and the second through hole 231 are symmetrically distributed about the center line of the speaker enclosure, then the axial direction of the first through hole 131 and the axial direction of the second through hole 231 may be intersecting or coincident. If you want to maximize the airflow path through the first annular cavity 40, you only need to symmetrically distribute the positions of the first through hole 131 and the second through hole 231 about the center line of the speaker enclosure.

[0048] Specifically, in other embodiments of this utility model, when the positions of the first through hole 131 and the second through hole 231 are not symmetrically distributed about the center line of the speaker enclosure, such as when the line connecting the first through hole 131 and the speaker enclosure forms an acute angle, a right angle, or an obtuse angle with the line connecting the second through hole 231 and the speaker enclosure, and the axial direction of the first through hole 131 and the axial direction of the second through hole 231 intersect, the airflow can also have a long path length and a complex and tortuous shape through the first annular cavity 40, thereby blocking and reflecting the airflow multiple times, greatly reducing the flow velocity, and eliminating airflow noise.

[0049] In some embodiments of this utility model, such as Figure 2 and 3As shown, the second half-shell 20 has a third annular rib 24 protruding from the side facing the first half-shell 10. The second annular rib 23 is located outside the first annular rib 13, and the third annular rib 24 is located inside the first annular rib 13, forming a second annular cavity 50 between them. A notch 241 is formed between the third annular rib 24 and the first half-shell 10, and the notch 241 communicates with the receiving cavity 30. The second annular cavity 50 connects the first through hole 131 and the notch 241. In this embodiment, when the speaker body 200 is working, the airflow generated by the receiving cavity 30 inside the speaker enclosure can enter the second annular cavity 50 through the notch 241. Since the second annular cavity 50 is formed by the first annular rib 13 and the third annular rib 24, the path of the second annular cavity 50 is relatively long and its shape is tortuous, which can block and reflect the flowing airflow. Finally, it enters the first annular cavity 40 through the first through hole 131. In conjunction with the first annular cavity 40 between the first annular rib 13 and the second annular rib 23, the airflow velocity can be further reduced and airflow noise can be eliminated.

[0050] Specifically, in other embodiments of this utility model, the notch 241 can be a small hole structure, connecting only the accommodating cavity 30 and the second annular cavity 50, for allowing airflow from the accommodating cavity 30 into the second annular cavity 50. The notch 241 and the first through hole 131 are symmetrically distributed about the centerline of the speaker enclosure. In this embodiment, the above arrangement maximizes the distance between the first through hole 131 and the notch 241, causing the airflow from the accommodating cavity 30 into the notch 241 to travel a longer path through the second annular cavity 50 before reaching the first through hole 131. Due to the long path length and complex, tortuous shape of the path in the second annular cavity 50, the airflow is blocked and reflected multiple times, significantly reducing the flow velocity and eliminating airflow noise. Finally, the airflow enters the first annular cavity 40 through the first through hole 131. Combined with the structure of the first annular cavity 40, this further enhances the effect of eliminating airflow noise.

[0051] In some embodiments of this utility model, such as Figure 5 and 6 As shown, the notch 241 is an annular notch 241, which facilitates the large-area entry of airflow into the second receiving cavity. Along the arrangement direction of the first half-shell 10 and the second half-shell 20, the size of the notch 241 ranges from 1 to 10 mm. In this embodiment, the size range of the notch 241 should be within the aforementioned range. If the size range is too large, the airflow velocity through the hole may exceed a critical value, further inducing turbulent noise. If the size range is too small, the air pressure in the first annular cavity 40 cannot be balanced in time, forming a "barotrapping" effect. Furthermore, if the notch 241 is too small, the heat dissipation airflow is obstructed, leading to temperature increases and affecting the speaker's sound quality.

[0052] In some embodiments of this utility model, the first annular rib 13 and the second half-shell 20 are welded together. The second annular rib 23 and the first half-shell 10 are welded together. In this embodiment, the welding method ensures a strong connection between the first annular rib 13 and the second half-shell 20, as well as between the second annular rib 23 and the first half-shell 10, reducing energy loss during transmission and thus improving sound transmission efficiency. The welding method can be hot plate welding or friction welding.

[0053] In some embodiments of this invention, the diameter of the first through hole 131 ranges from 1 to 10 mm. The diameter of the second through hole 231 also ranges from 1 to 10 mm. In this embodiment, the diameters of the first through hole 131 and the second through hole 231 should fall within the aforementioned ranges. If the diameter range is too large, the airflow velocity through the holes may exceed a critical value, further triggering turbulent noise. If the diameter range is too small, the air pressure in the first annular cavity 40 and the second annular cavity 50 cannot be balanced in time, resulting in a "pressure lock" effect. Furthermore, if the first through hole 131 and the second through hole 231 are too small, the heat dissipation airflow is obstructed, leading to temperature increases and affecting the speaker's sound quality.

[0054] In some embodiments of this utility model, a mounting hole is provided on the first half-shell 10 or the second half-shell 20 for mounting the speaker body 200. In this embodiment, the speaker body 200 is provided in the mounting hole, thereby realizing the connection with the speaker enclosure.

[0055] In some embodiments of this utility model, such as Figure 2 and 3 As shown, the first half-shell 10 includes a first shell portion 11 and a first annular portion 12. The first shell portion 11 has a first opening on the side facing the second half-shell 20. The first annular portion 12 is located at the circumferential edge of the first opening, and a first annular rib 13 protrudes from the first annular portion 12 towards the second half-shell 20. The second half-shell 20 includes a second shell portion 21 and a second annular portion 22. The second shell portion 21 has a second opening on the side facing the first half-shell 10. The second annular portion 22 is located at the circumferential edge of the second opening, and a second annular rib 23 protrudes from the second annular portion 22 towards the first half-shell 10. In this embodiment, the first annular rib 13 is located on the first annular portion 12, and the second annular rib 23 is located on the second annular portion 22. This allows the first annular rib 13 and the second annular rib 23 to be positioned as far outward as possible, thereby maximizing the circumference of the first annular cavity 40 and maximizing its path length. The resulting complex and tortuous shape further maximizes the multiple obstructions and reflections of the airflow, significantly reducing the flow velocity and eliminating airflow noise.

[0056] Furthermore, such as Figure 5 and 6 As shown ( Figure 5 and Figure 6 (The arrows in the diagram indicate the direction of airflow). In this invention, the speaker enclosure utilizes the first annular cavity 40 formed during the welding of the first half-shell 10 and the second half-shell 20 as the airflow space and the path for airflow inside and outside the speaker enclosure. The first through hole 131 and the second through hole 231 are respectively provided on the first half-shell 10 and the second half-shell 20, thereby realizing the connection between the accommodating cavity 30 and the outside of the speaker body 200 system. Due to the long path and tortuous shape, the airflow generated inside the speaker enclosure when the speaker body 200 is working can be blocked and reflected, and the flow velocity can be greatly reduced, thus reducing airflow noise.

[0057] This utility model also proposes a loudspeaker, comprising:

[0058] Speaker body 200;

[0059] The speaker enclosure is the speaker enclosure described above. The speaker enclosure has mounting holes, and the speaker body 200 is located in the mounting holes.

[0060] By using the speaker in this technical solution, which adopts a combination structure of speaker body 200 and speaker enclosure, when the speaker body 200 is working, the airflow generated by the cavity 30 inside the speaker enclosure can flow into the first annular cavity 40 through one of the first through hole 131 and the second through hole 231. Since the first annular cavity 40 is formed by the first annular rib 13 and the second annular rib 23, the first annular cavity 40 has a long path and a tortuous shape, which can block and reflect the airflow. Finally, the airflow flows out of the speaker enclosure through the other of the first through hole 131 and the second through hole 231. By using the speaker enclosure in this utility model, the airflow velocity can be reduced and the airflow noise can be eliminated.

[0061] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A loudspeaker enclosure, characterized in that, include: First half-shell; The second half-shell is fastened together with the first half-shell and the second half-shell to form an accommodating cavity. The first half-shell has a first annular rib protruding from one side toward the second half-shell and is connected to the second half-shell. The second half-shell has a second annular rib protruding from one side toward the first half-shell and is connected to the first half-shell, forming a first annular cavity between the second and the first annular rib. The first annular rib has a first through hole and the second annular rib has a second through hole. One of the first through hole and the second through hole connects the accommodating cavity and the first annular cavity, and the other of the first through hole and the second through hole connects the first annular cavity and the outside of the speaker enclosure.

2. The speaker enclosure according to claim 1, characterized in that, The first through hole and the second through hole are symmetrically distributed about the center line of the speaker enclosure.

3. The speaker enclosure according to claim 1, characterized in that, The second half-shell protrudes from one side toward the first half-shell and is provided with a third annular rib. The second annular rib is located outside the first annular rib, and the third annular rib is located inside the first annular rib, forming a second annular cavity between the second and the first annular rib. A notch is formed between the third annular rib and the first half-shell, and the notch is connected to the receiving cavity. The second annular cavity is connected to the first through hole and the notch.

4. The speaker enclosure according to claim 3, characterized in that, The notch is a ring structure.

5. The speaker enclosure according to claim 4, characterized in that, Along the arrangement direction of the first half-shell and the second half-shell, the size of the notch ranges from 1 to 10 mm.

6. The speaker enclosure according to claim 1, characterized in that, The first annular rib and the second half-shell are welded together; And / or, the second annular rib and the first half-shell are welded together.

7. The speaker enclosure according to claim 1, characterized in that, The diameter of the first through hole ranges from 1 to 10 mm; And / or, the diameter of the second through hole is in the range of 1-10 mm.

8. The speaker enclosure according to claim 1, characterized in that, The first half-shell or the second half-shell has a mounting hole for mounting the speaker body.

9. The speaker enclosure according to claim 1, characterized in that, The first half-shell includes a first shell portion and a first annular portion. The first shell portion has a first opening on the side facing the second half-shell. The first annular portion is disposed at the circumferential edge of the first opening. The first annular portion is provided with a first annular rib protruding towards the second half-shell. And / or, the second half-shell includes a second shell portion and a second annular portion, the second shell portion having a second opening on the side facing the first half-shell, the second annular portion being disposed at the circumferential edge of the second opening, and the second annular portion being provided with a second annular rib protruding towards the first half-shell.

10. A loudspeaker, characterized in that, include: Speaker body; A speaker enclosure, wherein the speaker enclosure is the speaker enclosure as described in any one of claims 1-9, the speaker enclosure having a mounting hole, and the speaker body being disposed in the mounting hole.

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