Vehicle-mounted sound equipment

Abstract

The utility model belongs to the technical field of sound equipment, and discloses vehicle-mounted sound equipment. The vehicle-mounted sound system comprises a first shell, a second shell, a loudspeaker and a cover plate, the first shell and the second shell are mutually buckled to form a volume space; the loudspeaker is fixedly connected to the first shell or the second shell; an inverter tube groove is formed in the side wall of the first shell, the cover plate is fixedly connected to the first shell and forms an inverter tube together with the inverter tube groove in a surrounding mode, the inverter tube groove is communicated with the outside along one side in the extending direction of the inverter tube groove, and the other side in the extending direction of the inverter tube groove is communicated with the containing space, so that only the position where the cover plate can be fixed needs to be found on the first shell; according to the vehicle-mounted sound box, the corresponding shape of the inverter tube can be designed, the design of the box body is greatly simplified, and because one part of the inverter tube is designed on the box body, the space in the mold stripping direction of the inverter tube does not need to be emptied, so that the accommodating space of the box body in the vehicle-mounted sound box is reduced; therefore, the vehicle-mounted sound equipment box body can accommodate more sound equipment components, so that the use performance of the vehicle-mounted sound equipment is ensured.

Description

Technical Field

[0001] This utility model relates to the field of audio technology, and in particular to a car audio system. Background Technology

[0002] Limited installation space in cars restricts the size of car audio systems. Therefore, it's necessary to maximize the volume of the car audio enclosure to accommodate more audio components and ensure optimal performance. The bass reflex port amplifies specific low frequencies (usually the speaker's resonant frequency), resulting in stronger and deeper bass. However, the bass reflex port is typically molded and fixed to the car audio enclosure using the following methods, occupying or sacrificing significant enclosure space: 1) Separate injection molding: After the upper and lower covers of the car audio enclosure are joined, the bass reflex port is installed on the enclosure, directly occupying a large amount of enclosure space; 2) The bass reflex port is split into two and injection molded separately onto the upper and lower covers of the car audio enclosure. As the upper and lower covers are snapped together, the bass reflex port is also snapped together. Due to molding and demolding requirements, the space in the demolding direction of the bass reflex port needs to be cleared for demolding, thus sacrificing some of the car audio enclosure's volume space. Utility Model Content

[0003] The purpose of this utility model is to provide a car audio system that reduces the volume space occupied or lost due to the molding and installation of the bass reflex tube, thereby allowing the car audio system to accommodate more audio components and ensuring the performance of the car audio system.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A car audio system is provided, which is installed in a vehicle and includes:

[0006] The first outer shell and the second outer shell are interlocked to form a volumetric space;

[0007] The speaker is fixedly connected to the first housing or the second housing.

[0008] The cover plate has a phase inversion tube groove on the side wall of the first outer shell. The cover plate is fixedly connected to the first outer shell and forms a phase inversion tube with the phase inversion tube groove. One side of the phase inversion tube groove along its extension direction is connected to the outside, and the other side along its extension direction is connected to the volume space.

[0009] Preferably, a hot riveting head is provided on the side wall of the first outer shell facing the cover plate, and a hot riveting hole is provided on the cover plate corresponding to the hot riveting head. The hot riveting head and the hot riveting hole are inserted and matched, and the first outer shell and the cover plate are bonded together by adhesive.

[0010] Preferably, a hot riveting groove is provided on the side of the cover plate away from the first outer shell, and hot riveting holes are opened on the bottom wall of the hot riveting groove.

[0011] Preferably, the first outer shell has a insertion groove on its side wall facing the cover plate, and the cover plate has an insertion protrusion on its surface that can be inserted into the insertion groove.

[0012] Preferably, the wall of the phase inverter slot is coated with a damping adhesive layer; and / or the surface of the cover plate facing the second housing is coated with a damping adhesive layer.

[0013] Preferably, when the speaker is fixedly connected to the second housing, a receiving groove is provided on the side wall of the second housing, and the speaker is completely housed in the receiving groove; or when the speaker is fixedly connected to the first housing, a receiving groove is provided on the side wall of the first housing, and the speaker is completely housed in the receiving groove.

[0014] Preferably, a shock-absorbing pad is also sandwiched between the speaker and the receiving groove.

[0015] Preferably, the phase inverter includes an inlet section, a channel section, and an outlet section; one end of the inlet section is connected to the volume space, and the other end is connected to the first end of the channel section, with the extension direction of the inlet section intersecting the extension direction of the channel section; one end of the outlet section is connected to the volume space, and the other end is connected to the second end of the channel section, with the extension direction of the inlet section intersecting the extension direction of the channel section.

[0016] Preferably, the inlet portion has a channel structure that is narrower on the side closer to the channel portion and wider on the side farther from the channel portion; and / or the outlet portion has a channel structure that is narrower on the side closer to the channel portion and wider on the side farther from the channel portion.

[0017] Preferably, at least two phase inversion tube slots are provided on the side wall of the first housing, and the number of cover plates is the same as the number of phase inversion tube slots, with the cover plates engaging with their respective corresponding phase inversion tube slots.

[0018] The beneficial effects of this utility model are:

[0019] The car audio system provided by this utility model forms a volume space by interlocking a first outer shell and a second outer shell. A bass reflex port groove is opened on the side wall of the first outer shell. A cover plate is fixedly connected to the first outer shell and surrounds the bass reflex port groove to form a bass reflex port. One side of the bass reflex port groove along its extension direction is connected to the outside, and the other side along its extension direction is connected to the volume space. Thus, it is only necessary to find a position on the first outer shell where the cover plate can be fixed, and the corresponding bass reflex port shape can be designed, which greatly simplifies the enclosure design. Since part of the bass reflex port is designed on the enclosure, it is not necessary to clear the space in the direction of the bass reflex port's ejection, thereby reducing the storage space in the car audio enclosure. This allows the car audio enclosure to accommodate more audio components, thus ensuring the performance of the car audio system. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the car audio system provided by this utility model;

[0021] Figure 2 This is an exploded view of the car audio system provided by this utility model;

[0022] Figure 3 yes Figure 2 A partial schematic diagram of point A in the middle.

[0023] In the picture:

[0024] 1. First outer casing; 11. Phase inverter slot; 12. Hot riveting head; 13. Insertion slot;

[0025] 2. Second outer shell; 21. Receiving groove;

[0026] 3. Speaker;

[0027] 4. Cover plate; 41. Hot riveting hole; 42. Hot riveting groove; 43. Insertion protrusion;

[0028] 5. Phase inverter; 51. Inlet section; 52. Channel section; 53. Outlet section. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] The bass reflex port, molded and fixedly connected to the car audio enclosure, occupies a significant amount of space within the enclosure, directly contributing to the limited space for more audio components and thus compromising the performance of the car audio system. Therefore, improving the molding method of the bass reflex port and its connection to the car audio enclosure is key to solving these technical problems. The following section will discuss this further. Figures 1 to 3 This invention provides a detailed description of the car audio system provided by this utility model.

[0034] Figure 1 This diagram illustrates the structure of the car audio system provided in this embodiment. Figure 2 An exploded view of the car audio system provided in this embodiment is shown. Figure 3 It shows Figure 2 A partial schematic diagram of point A in the middle. (See diagram below.) Figures 1 to 3 As shown, the car audio system provided in this embodiment is installed on a vehicle and includes a first housing 1, a second housing 2, a speaker 3, and a cover plate 4. The first housing 1 and the second housing 2 are interlocked to form a volume space. The speaker 3 is fixedly connected to the first housing 1 or the second housing 2. A bass reflex port groove 11 is provided on the side wall of the first housing 1. The cover plate 4 is fixedly connected to the first housing 1 and surrounds the bass reflex port groove 11 to form a bass reflex port 5. One side of the bass reflex port groove 11 along its extension direction is connected to the outside, and the other side along its extension direction is connected to the volume space.

[0035] The car audio system provided in this embodiment forms a volume space by interlocking a first outer shell 1 and a second outer shell 2. A bass reflex port groove 11 is provided on the side wall of the first outer shell 1. A cover plate 4 is fixedly connected to the first outer shell 1 and surrounds the bass reflex port groove 11 to form a bass reflex port 5. One side of the bass reflex port groove 11 along its extension direction is connected to the outside, and the other side along its extension direction is connected to the volume space. Thus, it is only necessary to find a position on the first outer shell 1 where the cover plate 4 can be fixed, and the corresponding shape of the bass reflex port 5 can be designed, which greatly simplifies the enclosure design. Since part of the bass reflex port 5 is designed on the enclosure, it is not necessary to clear the space in the mold direction of the bass reflex port 5, thereby reducing the accommodation space in the car audio enclosure. This allows the car audio enclosure to accommodate more audio components, thereby ensuring the performance of the car audio system.

[0036] Continue as Figures 1 to 3 As shown, a hot riveting head 12 is also provided on the side wall of the first outer shell 1 facing the cover plate 4. A hot riveting hole 41 is provided on the cover plate 4 corresponding to the hot riveting head 12. The hot riveting head 12 and the hot riveting hole 41 are inserted and engaged. The first outer shell 1 and the cover plate 4 are bonded together with adhesive. Thus, when the first outer shell 1 and the cover plate 4 are bonded together, the hot riveting connection between the first outer shell 1 and the cover plate 4 is realized at the same time. This can shorten the drying time of the adhesive and reduce the molding difficulty of the bass reflex tube 5. Thus, it is not necessary to clear the space in the touch direction for the snap-fit ​​molding of the bass reflex tube 5, thereby reducing the loss of the volume space of the car audio enclosure. This allows the car audio enclosure to accommodate more audio components, thereby ensuring the performance of the car audio system. It can also reduce the production cost of the bass reflex tube 5.

[0037] Preferably, a hot riveting groove 42 is provided on the side of the cover plate 4 away from the first outer shell 1, and a hot riveting hole 41 is opened on the bottom wall of the hot riveting groove 42, so that the hot riveting head 12 after hot riveting is formed can be accommodated in the hot riveting groove 42, thereby maintaining the flatness and beauty of the cover plate 4.

[0038] Continue as Figures 1 to 3 As shown, the first outer shell 1 has a insertion groove 13 on its side wall facing the cover plate 4, and the cover plate 4 has an insertion protrusion 43 on its surface that can be inserted into the insertion groove 13. This allows the insertion groove 13 and the insertion protrusion 43 to engage when the cover plate 4 is fixedly connected to the first outer shell 1, thereby improving the stability of the connection between the cover plate 4 and the first outer shell 1. At the same time, it can help determine the spatial position of the cover plate 4 relative to the first outer shell 1 so that it can be formed with the phase inverter slot 11 to form the phase inverter 5. This prevents the phase inverter slot 11 from having a gap between it and the cover plate 4 after they are fixedly connected, which would cause sound leakage.

[0039] In some embodiments, a damping adhesive layer is coated on the wall of the phase inverter 11; and / or a damping adhesive layer is coated on the surface of the cover plate 4 facing the second housing 2. This maintains the seal of the inner wall of the phase inverter 5 while dissipating the vibrational energy generated by the airflow within the phase inverter 5, thereby preventing resonance between the cover plate 4 and the first housing. It should be noted that the damping adhesive layer can be made of materials such as rubber, polyacrylate, or polyurethane rubber. All damping materials capable of dissipating the vibrational energy generated by the airflow within the phase inverter 5 are within the scope of protection of this embodiment and will not be described in detail here.

[0040] Continue as Figures 1 to 3 As shown, when the speaker 3 is fixedly connected to the second housing 2, a receiving groove 21 is provided on the side wall of the second housing 2. The speaker 3 is completely housed in the receiving groove 21, thereby preventing the speaker 3 from being exposed outside the second housing 2, protecting the speaker 3 while maintaining the flat and beautiful appearance of the second housing 2.

[0041] In some embodiments, when the speaker 3 is fixedly connected to the first housing 1, a receiving groove 21 is provided on the side wall of the first housing 1, and the speaker 3 is completely housed in the receiving groove 21, thereby preventing the speaker 3 from being exposed outside the first housing 1, protecting the speaker 3 while maintaining the flat and beautiful appearance of the first housing 1.

[0042] Preferably, a damping pad is also sandwiched between the speaker 3 and the receiving groove 21 to convert the vibration kinetic energy of the speaker 3 into heat energy, thereby preventing structural fatigue damage caused by long-term vibration of the speaker 3, and at the same time preventing air leakage at the edge of the speaker 3. Specifically, the damping pad can be made of rubber, polyurethane, or silicone. The material of the damping pad is not limited here, as long as it can reduce the vibration of the speaker 3 and prevent air leakage at the edge of the speaker 3. The cross-section of the damping pad has a wavy structure.

[0043] Continue as Figures 1 to 3 As shown, the bass reflex port 5 includes an inlet section 51, a channel section 52, and an outlet section 53. One end of the inlet section 51 is connected to the volume space, and the other end is connected to the first end of the channel section 52. The extension direction of the inlet section 51 intersects the extension direction of the channel section 52, thereby extending the actual length of the bass reflex port 5 and directly affecting the low-frequency tuning frequency of the car speaker, and changing the airflow path from the volume space to the outside, thereby reducing the flow velocity and noise. Similarly, one end of the outlet section 53 is connected to the volume space, and the other end is connected to the second end of the channel section 52. The extension direction of the inlet section 51 intersects the extension direction of the channel section 52, thereby extending the actual length of the bass reflex port 5 and directly affecting the low-frequency tuning frequency of the car speaker, and changing the airflow path from the volume space to the outside, thereby reducing the flow velocity and noise.

[0044] Continue as Figures 1 to 3 As shown, the inlet 51 has a channel structure that is narrower near the channel 52 and wider away from the channel 52. This allows the airflow to gradually increase its cross-sectional area as it enters the inlet 51, resulting in a smoother transition into the channel 52. This prolongs the airflow attachment time, reduces the possibility of boundary layer separation, and thus suppresses the generation of eddies and turbulence, reducing noise levels. Similarly, the outlet 53 also has a channel structure that is narrower near the channel 52 and wider away from the channel 52. This allows the airflow to gradually increase its cross-sectional area as it enters the outlet 53, resulting in a smoother transition into the channel 52. This prolongs the airflow attachment time, reduces the possibility of boundary layer separation, and thus suppresses the generation of eddies and turbulence, reducing noise levels.

[0045] In some embodiments, at least two bass reflex port slots 11 are provided on the side wall of the first housing 1. The number of cover plates 4 is the same as the number of bass reflex port slots 11. The cover plates 4 are respectively engaged with their respective corresponding bass reflex port slots 11, so that airflow can be discharged simultaneously from the volume space through multiple bass reflex ports 5. This reduces the airflow discharged from a single bass reflex port 5 and increases the cross-sectional area of ​​the pipe opening corresponding to the airflow flowing out of a single bass reflex port 5, allowing the airflow to flow smoothly into the bass reflex port 5, thereby prolonging the airflow adhesion time, reducing the possibility of airflow boundary layer separation, and thus suppressing the generation of eddies and turbulence, reducing noise sources. It should be noted that there can be one, two, three, or even more bass reflex port slots 11. Those skilled in the art can reasonably set the number of bass reflex port slots 11, that is, the number of bass reflex ports 5, according to the actual needs of the vehicle audio system.

[0046] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A car audio installed on a vehicle, characterized by comprising: The utility model relates to a loudspeaker box, including: First shell (1), second shell (2), first shell (1) and second shell (2) are mutually buckled and form the volume space; Loudspeaker (3) is fixedly connected on first shell (1) or second shell (2); Cover plate (4), the sidewall of first shell (1) is provided with inverse phase pipe slot (11), cover plate (4) is fixedly connected on first shell (1) and is surrounded with inverse phase pipe slot (11) and forms inverse phase pipe (5), inverse phase pipe slot (11) is communicated with the outside along one side of its extension direction, and the other side of its extension direction is communicated with volume space.

2. The car audio of claim 1, wherein The sidewall of first shell (1) towards cover plate (4) is further provided with hot riveting head (12), cover plate (4) is provided with hot riveting hole (41) corresponding to hot riveting head (12), hot riveting head (12) is inserted with hot riveting hole (41), and first shell (1) is bonded with cover plate (4) through colloid.

3. The car audio of claim 2, wherein The board surface of the side of cover plate (4) away from first shell (1) is further provided with hot riveting groove (42), and hot riveting hole (41) is provided on the bottom wall of hot riveting groove (42).

4. The car audio of claim 1, wherein The sidewall of first shell (1) towards cover plate (4) is provided with insertion slot (13), and the board surface of cover plate (4) is provided with insertion protrusion (43) capable of being inserted with insertion slot (13).

5. The car audio of claim 1, wherein The groove wall of inverse phase pipe slot (11) is coated with damping glue layer;And / or the board surface of cover plate (4) towards second shell (2) is coated with damping glue layer.

6. The car audio of claim 1, wherein When loudspeaker (3) is fixedly connected on second shell (2), the sidewall of second shell (2) is provided with containing groove (21), and loudspeaker (3) is completely contained in containing groove (21);Or when loudspeaker (3) is fixedly connected on first shell (1), the sidewall of first shell (1) is provided with containing groove (21), and loudspeaker (3) is completely contained in containing groove (21).

7. The car audio of claim 6, wherein Damping pad is further arranged between loudspeaker (3) and containing groove (21).

8. The car audio of claim 1, wherein Inverse phase pipe (5) includes inlet portion (51), passage portion (52) and outlet portion (53);One end of inlet portion (51) is communicated with volume space, and the other end is connected with the first end of passage portion (52), and the extension direction of inlet portion (51) intersects with the extension direction of passage portion (52);One end of outlet portion (53) is communicated with volume space, and the other end is connected with the second end of passage portion (52), and the extension direction of inlet portion (51) intersects with the extension direction of passage portion (52).

9. The car audio of claim 8, wherein The inlet portion (51) is the channel structure that one side close to the passage portion (52) is narrow, and one side away from the passage portion (52) is wide;And / or the outlet portion (53) is the channel structure that one side close to the passage portion (52) is narrow, and one side away from the passage portion (52) is wide.

10. The car audio as claimed in any one of claims 1 to 9, wherein At least two inverse phase pipe grooves (11) are arranged on the side wall of the first shell (1), and the cover plate (4) is the same number as the inverse phase pipe grooves (11), and the cover plate (4) and the inverse phase pipe grooves (11) are buckled with each other.

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