Sound box air guide pipe structure

Abstract

The utility model discloses a sound box air guide pipe structure, which is applied to a sound box, the sound box air guide pipe structure comprises a box body and an air guide pipe, the outer wall of the box body is connected with a box body coaming, a cavity is formed in the box body, a partition plate is arranged in the cavity, and the partition plate divides the cavity into a first cavity and a second cavity; the air guide pipe is installed in the second cavity and communicates with the first cavity and the second cavity, an air guide pipe integration part is arranged in the second cavity, an air guide pipe separation part is arranged on the side, facing the box body surrounding plate, of the air guide pipe, and reinforcing ribs are arranged on the side, facing the box body surrounding plate, of the air guide pipe separation part. The box body surrounding plate extrudes the air guide pipe separation part through the reinforcing ribs, so that the air guide pipe is completely combined on the air guide pipe integration part; according to the utility model, the fastening connection of the air guide pipe and the box body is ensured, and the air tightness of the air guide pipe is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic equipment, in particular to a sound box air duct structure. Background Art

[0002] With the progress of society, people yearn for a more colorful life. As a form of entertainment that has been passed down for thousands of years, singing and dancing have penetrated into the lives of people of all ethnic groups. However, with the development and progress of science and technology, people have more and more requirements for the performance forms and venues of singing and dancing. The sound system is constantly improving and perfecting with people's needs. From meeting the needs of live sound reinforcement for concerts with tens of thousands of people to meeting the needs of playing musical instruments and karaoke at home, a very important device in the sound system is the cabinet, which is generally composed of a speaker unit and a cabinet. The speaker unit is the sound-generating component, and the cabinet plays a role in correcting the sound as a supplement to the speaker unit.

[0003] The speaker unit of the existing box will vibrate when working, which will cause the air pressure imbalance in the box, so the air in the cavity where the speaker unit is located needs to be conducted to another place. Usually, a straight air duct is used for conduction, but in the case of a small box and multiple speakers, the direct air duct conduction path is not long enough, which is easy to generate noise and poor effect. In addition, the connection between the air duct and the box is not tight, which is easy to cause air leakage.

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

[0005] The purpose of the utility model is to provide a solution to the above problems that "the conduction path of the straight air duct is not long enough, which easily generates noise and has a poor effect; and the connection between the air duct and the box is not tight, which easily causes air leakage".

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A sound box air duct structure is applied to a sound box, the sound box air duct structure comprises a box body and an air duct, the outer wall of the box body is connected to a box body enclosure, a cavity is formed in the box body, a partition plate is arranged in the cavity, and the partition plate divides the cavity into a first cavity and a second cavity;

[0008] The air duct is installed in the second cavity and connects the first cavity and the second cavity. An air duct integration part is provided in the second cavity. An air duct separation part is provided on the side of the air duct facing the box enclosure. Reinforcing ribs are provided on the air duct separation part facing the box enclosure. The box enclosure squeezes the air duct separation part through the reinforcing ribs so that the air duct is completely combined with the air duct integration part.

[0009] Preferably, the reinforcing rib is fixedly connected to the air duct separation portion, and the side of the reinforcing rib away from the air duct separation portion is connected to the box enclosure.

[0010] Preferably, the air guide duct separation portion is further provided with a connecting rib, and the connecting rib is provided with at least one group of threaded holes;

[0011] The threaded holes are distributed in a staggered manner, and screws fixedly connected to the box body are installed in the threaded holes.

[0012] Preferably, the air guide duct integration portion is integrally formed on the partition plate;

[0013] Alternatively, the air guide duct integration part is movably or fixedly connected to the partition plate.

[0014] Preferably, an air inlet and an air outlet are provided on the partition plate, and the air duct is connected to the first cavity and the second cavity through the air inlet.

[0015] Preferably, the air outlet is formed on the partition plate, and the air outlet is a curved air outlet.

[0016] Preferably, a clamping groove is formed on the air duct integration part, and the air duct is clamped on the air duct integration part through the clamping groove.

[0017] Preferably, the air duct is a U-shaped air duct, and the U-shaped air duct includes a first straight segment, a curved segment, and a second straight segment connected in sequence, and the first straight segment, the curved segment, and the second straight segment are integrally formed.

[0018] Preferably, the box body is provided with at least two speaker installation positions which are in communication with the first cavity, and speakers are installed on the speaker installation positions.

[0019] Preferably, the air inlet is close to a vibration normal line of the speaker.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The sound box air duct structure provided by the embodiment of the utility model is provided with the reinforcing ribs, and the air duct separation part of the air duct is abutted against the box enclosure through the reinforcing ribs, and the air duct separation part is squeezed by the reinforcing ribs, so that the air duct is completely combined with the air duct integration part, and thus the air duct can be fixed in the second cavity, ensuring that the air duct is firmly connected to the partition plate, thereby improving the air tightness of the air duct and preventing air leakage from generating noise; and the air duct can extend the propagation path of the sound, and when the speaker in the first cavity makes a sound, the propagation time of the sound in the air duct can be extended, so that the product can obtain better sound effect; and the sound waves are relatively stable when flowing, which will not cause uneven flow velocity distribution of the sound wave airflow, avoiding airflow turbulence to generate standing waves, thereby improving wind shear sound and enhancing the bass effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0024] Figure 1 The overall structural diagram of the sound box air duct structure provided by the embodiment of the utility model;

[0025] Figure 2 An exploded view of the sound box air duct structure provided by an embodiment of the utility model;

[0026] Figure 3 A cross-sectional view of the sound box air duct structure provided by an embodiment of the utility model;

[0027] Figure 4 Another cross-sectional view of the sound box air duct structure provided by the embodiment of the utility model;

[0028] Figure 5 A schematic diagram of the structure of a box body of a sound box air duct structure provided by an embodiment of the utility model;

[0029] Figure 6 A schematic diagram of the air duct structure of the sound box air duct structure provided by an embodiment of the utility model;

[0030] Figure 7 A front view of the air duct of the sound box air duct structure provided in an embodiment of the utility model.

[0031] Illustration Description:

[0032] 10. Box body; 11. Box body panel; 12. First cavity; 13. Partition plate; 130. Air inlet; 131. Air outlet; 14. Second cavity; 140. Air duct integration part; 141. Snap-in groove; 15. Speaker installation position; 150. Speaker;

[0033] 20. Air duct; 201. First straight segment; 202. Curved segment; 203. Second straight segment; 21. Air duct separation portion; 210. Reinforcing rib; 211. Connecting rib; 212. Threaded hole. DETAILED DESCRIPTION

[0034] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0036] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0037] See also Figure 1-Figure 4An embodiment of the utility model provides a sound box air duct structure, which is applied to a sound box. The sound box air duct structure includes a box body 10 and an air duct 20. The outer wall of the box body 10 is connected to a box body enclosure 11. A cavity is formed in the box body 10. A partition plate 13 is arranged in the cavity 12. The partition plate 13 divides the cavity into a first cavity 12 and a second cavity 14.

[0038] Based on the above structural design, by providing the partition plate 13, on the one hand, it is convenient to separate the second cavity 14 from the first cavity 12, and on the other hand, it is convenient to install the air duct 20 used to connect the first cavity 12 and the second cavity 14 in the second cavity 14, and the air duct 20 thereby conducts the air of the first cavity 12 to the second cavity 14.

[0039] In this embodiment, at least two speaker mounting positions 15 connected to the first cavity 12 are provided on the box body 10, and speakers 150 are installed on the speaker mounting positions 15. The speakers 150 are transducer devices that convert electrical signals into sound signals. The sound output ends of the speakers 150 extend out from the speaker mounting positions 15, and the ends opposite to the sound output ends are located in the first cavity 12.

[0040] In this embodiment, the air duct 20 is installed in the second cavity 14 and connects the first cavity 12 and the second cavity 14. The air duct 20 is provided with an air duct separation portion 21 on the side facing the box body panel 11, and an air duct integration portion 140 is provided in the second cavity 14. The air duct separation portion 21 is provided with a reinforcing rib 210 on the side facing the box body panel 11. The box body panel 11 squeezes the air duct separation portion 21 through the reinforcing rib 210 so that the air duct 20 is completely combined with the air duct integration portion 140. In this embodiment, by providing the reinforcing rib 210, the air duct separation portion 21 of the air duct 20 abuts against the box enclosure 11, and the air duct separation portion 21 is squeezed by the reinforcing rib 210, so that the air duct 20 and the air duct integration portion 140 can be completely combined, so that the air duct 20 can be fixed in the second cavity 14, ensuring that the air duct 20 is firmly connected to the partition plate 13, thereby improving the air tightness of the air duct 20.

[0041] The sound box air duct structure provided by the embodiment of the utility model is provided with the reinforcing rib 210, the air duct separation portion 21 of the air duct 20 is abutted against the box body enclosure 11 through the reinforcing rib 210, and the air duct separation portion 21 is squeezed by the reinforcing rib 210, so that the air duct 20 and the air duct integration portion 140 can be completely combined, and the air duct integration portion 140 can be fixed in the second cavity 14, thereby ensuring that the air duct 20 and the separation portion 21 are in contact with each other. The partition 13 is tightly connected, thereby improving the air tightness of the air duct 20, so that when the speaker 150 makes a sound in the first cavity 12, the sound waves in the first cavity 12 are radiated to the second cavity 14, so that the sound waves in the box 10 are fully utilized, thereby improving the bass efficiency; and the air duct 20 can extend the propagation path of the sound. When the speaker 150 in the first cavity 12 makes a sound, the propagation time of the sound in the air duct 20 can be extended, so that the product can obtain better sound effects.

[0042] See also Figure 5 In one embodiment of the utility model, the air duct integration part 140 is integrally formed on the partition plate 14; since the air duct integration part 140 is integrally formed on the partition plate 14, the internal space of the box body 10 can be effectively saved, and the air duct separation part 21 is squeezed by the reinforcing rib 210, so that the air duct 20 and the air duct integration part 140 can be completely combined, so that the air duct 20 can be fixed in the second cavity 14 and clamped with the partition plate 14.

[0043] See also Figure 5 In another embodiment of the utility model, the air duct integration part 140 is movably or fixedly connected to the partition plate 14. When the air duct integration part 140 is fixedly connected to the partition plate, the air duct integration part 140 and the partition plate 14 can be fixedly connected to the partition plate 14 by welding or bonding, so that the air duct integration part 140 and the partition plate 14 are non-detachably connected. When the air duct integration part 140 and the partition plate are movably connected, the air duct integration part 140 and the partition plate 14 can be connected to the partition plate 14 by snapping, so that the air duct integration part 140 and the partition plate 14 are detachably connected. Then, the air duct separation part 21 is squeezed by the reinforcing rib 210, so that the air duct 20 and the air duct integration part 140 can be completely combined, so that the air duct 20 can be fixed in the second cavity 14.

[0044] See also Figure 2 , Figure 3 , Figure 6 , Figure 7In this embodiment, the ratio of the effective volume of the air duct 20 to the effective volume of the first cavity 12 is 1:5.1. In this embodiment, the ratio of the effective volume of the air duct 20 to the effective volume of the first cavity 12 is preferably 1:2.3. The larger the effective volume of the first cavity 12, the more air the speaker 150 discharges during operation, and the larger the effective volume of the air duct 20 needs to be. The larger the effective volume of the first cavity 12, the more air the speaker 150 discharges during operation, and the larger the effective volume of the air duct 20 needs to be.

[0045] In this embodiment, the air duct 20 is a U-shaped air duct 20, and the U-shaped air duct 20 includes a first straight segment 201, a curved segment 202, and a second straight segment 203 connected in sequence, and the first straight segment 201, the curved segment 202, and the second straight segment 203 are integrally formed. When the speaker 150 in the box 10 makes a sound and generates vibration, the speaker 150 radiates sound waves in the box 10, and the sound waves in the box 10 pass through the first straight segment 201, the curved segment 202, and the second straight segment 203 in sequence, so that the sound waves in the box 10 are fully utilized, thereby improving the bass efficiency.

[0046] Specifically, the curved segment 202 of the present embodiment is an arc segment, so that the connection between the curved segment 202 and the first straight segment 201 and the second straight segment 203 is smooth, so that the sound wave airflow can flow smoothly in the first straight segment 201, the curved segment 202 and the second straight segment 203, and will not cause uneven flow velocity distribution of the sound wave airflow, avoid airflow turbulence to produce standing waves, thereby improving wind shear sound and enhancing the bass effect.

[0047] Furthermore, the air guide path of the air guide 20 is a curve. Compared with the straight air guide 20, by designing the air guide 20 as a curved structure, the sound propagation path can be extended. When the speaker 150 in the first cavity 12 makes a sound, the propagation time of the sound in the air guide 20 can be extended, so that the product can obtain better sound effects.

[0048] In addition, the air duct 20 is designed as a half-cut structure, which not only ensures the air guiding effect of the air duct 20, but also makes it easier to install the air duct 20 in the second cavity 13, and also saves the internal space of the box 10 and the material cost required to make the air duct 20. The air duct 20 is installed in the second cavity 13 by first clamping and then bonding with a sealant, so that the air duct 20 is tightly fixed in the second cavity 13, thereby improving the overall air tightness of the air duct 20.

[0049] In this embodiment, the reinforcing rib 210 is fixedly connected to the air duct separation portion 21, and the side of the reinforcing rib 210 away from the air duct separation portion 21 is connected to the box body panel 11. Specifically, the reinforcing rib 210 and the air duct separation portion 21 are integrally formed, thereby reducing the difficulty of forming and the cost of production. Of course, in other embodiments of the utility model, the reinforcing rib 210 can be welded or bonded to the air duct separation portion 21.

[0050] In this embodiment, the air duct separation portion 21 is further provided with a connecting rib 211, and at least one group of threaded holes 212 are provided on the connecting rib 211, and screws fixedly connected to the box body 10 are installed in the threaded holes 212. Specifically, the inner wall of the second cavity 13 has a positioning column corresponding to the threaded hole 212, and the positioning column is a hollow structure and has a threaded hole 212. When the air duct 20 is installed in the second cavity 13, the threaded hole 212 on the connecting rib 211 is aligned with the threaded hole 212 on the positioning column, and then the screw is passed through the threaded hole 212 on the connecting rib 211 and the threaded hole 212 on the positioning column at one time and connected with the thread on the positioning column, thereby realizing the installation and fixation of the air duct 20 and the box body 10, and effectively preventing the air duct 20 from falling off during use.

[0051] Specifically, one of the threaded holes 212 of the present embodiment is located at the upper left of the air duct separation portion 21, and the other threaded hole 212 is located at the lower right of the air duct separation portion 21. The two threaded holes 212 that are offset up and down can increase the fastening force of the first straight line segment 201 and the second straight line segment 203, so that the air duct 20 can be firmly fixed in the second cavity 14, thereby improving the overall air tightness of the air duct 20.

[0052] See also Figure 2-Figure 5 In this embodiment, the partition plate 13 is provided with an air inlet 130 and an air outlet 131, and the air duct 20 is connected to the first cavity 12 and the first cavity 12 through the air inlet 130, so that when the speaker 150 is working, the air duct 20 conducts the air of the first cavity 12 to the second cavity 14 and outputs it through the air outlet 131. The air outlet 131 is formed on the partition plate 13, and the air outlet 131 is a curved surface air outlet 131. The air outlet 131 of this embodiment with a curved surface structure can effectively prevent the wind from directly hitting and generating noise, so that the product can obtain better sound effects.

[0053] In this embodiment, the air inlet 130 is close to the vibration normal line of the speaker 150. Since the air inlet 130 is close to the vibration normal line of the speaker 150, the air guiding efficiency can be effectively improved.

[0054] See also Figure 5 In this embodiment, a clamping groove 141 is formed on the air duct integration part 140, and the air duct 20 is clamped on the air duct integration part 140 through the clamping groove 141. Through the setting of the clamping groove 141, the air duct 20 can be pressed on the air duct integration part 140, and the clamping groove 141 is sealed by a sealant to prevent noise caused by air leakage, thereby ensuring the air tightness of the air duct 20 and preventing the air duct 20 from leaking during use.

[0055] In summary, the sound box air duct structure provided by the embodiment of the utility model is provided with the reinforcing rib 210, the air duct separation portion 21 of the air duct 20 is abutted against the box enclosure 11 through the reinforcing rib 210, and the air duct separation portion 21 is squeezed by the reinforcing rib 210, so that the air duct separation portion 21 and the air duct integration portion 140 can be completely combined, and the air duct integration portion 140 can be fixed in the second cavity 14, thereby ensuring The air duct 20 is tightly connected to the partition plate 13, thereby improving the air tightness of the air duct 20, so that when the speaker 150 makes a sound in the first cavity 12, the sound waves in the box 10 are radiated to the outside of the box 10 through the air duct 20, so that the sound waves in the box 10 are fully utilized, the bass efficiency is improved, and the sound waves are relatively stable when flowing, which will not cause uneven flow velocity distribution of the sound wave airflow, avoid airflow turbulence to produce standing waves, thereby improving wind shear sound and enhancing the bass effect.

[0056] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A sound box air duct structure, applied to a sound box, the sound box air duct structure comprising a box body (10) and an air duct (20), characterized in that: The outer wall of the box body (10) is connected to a box body enclosure (11), a cavity is formed in the box body (10), a partition plate (13) is arranged in the cavity, and the partition plate (13) divides the cavity into a first cavity (12) and a second cavity (14); The air duct (20) is installed in the second cavity (14) and connects the first cavity (12) and the second cavity (14); an air duct integration part (140) is arranged in the second cavity (14); an air duct separation part (21) is arranged on the side of the air duct (20) facing the box enclosure (11); a reinforcing rib (210) is arranged on the side of the air duct separation part (21) facing the box enclosure (11); the box enclosure (11) squeezes the air duct separation part (21) through the reinforcing rib (210) so that the air duct (20) is completely combined with the air duct integration part (140).

2. The sound box air duct structure according to claim 1, characterized in that: The reinforcing rib (210) is fixedly connected to the air duct separation portion (21), and the reinforcing rib (210) is connected to the box enclosure (11) at a side away from the air duct separation portion (21).

3. The sound box air duct structure according to claim 2, characterized in that: The air guide duct separation portion (21) is also provided with a connecting rib (211), and the connecting rib (211) is provided with at least one group of threaded holes (212); The threaded holes (212) are distributed in a staggered manner, and screws fixedly connected to the box body (10) are installed in the threaded holes (212).

4. The sound box air duct structure according to any one of claims 1 to 3, characterized in that: The air guide duct integration part (140) is integrally formed on the partition plate (13); Alternatively, the air guide duct integration portion (140) is movably or fixedly connected to the partition plate (13).

5. The sound box air duct structure according to claim 4, characterized in that: An air inlet (130) and an air outlet (131) are provided on the partition plate (13), and the air guide pipe (20) is connected to the first cavity (12) and the second cavity (14) through the air inlet (130).

6. The sound box air duct structure according to claim 5, characterized in that: The air outlet (131) is formed on the partition plate (13), and the air outlet (131) is a curved surface air outlet (131).

7. The sound box air duct structure according to claim 4, characterized in that: A clamping groove (141) is formed on the air duct integration part (140), and the air duct (20) is clamped on the air duct integration part (140) through the clamping groove (141).

8. The sound box air duct structure according to claim 7, characterized in that: The air duct (20) is a U-shaped air duct (20), the U-shaped air duct (20) comprising a first straight segment (201), a curved segment (202), and a second straight segment (203) connected in sequence, the first straight segment (201), the curved segment (202), and the second straight segment (203) being integrally formed.

9. The sound box air duct structure according to claim 5, characterized in that: The box body (10) is provided with at least two speaker installation positions (15) which are in communication with the first cavity (12), and speakers (150) are installed on the speaker installation positions (15).

10. The sound box air duct structure according to claim 9, characterized in that: The air inlet (130) is located close to the vibration normal line of the speaker (150).

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