A headphone front cavity housing structure

Abstract

The utility model discloses an earphone front cavity shell structure relates to earphone front cavity technical field, including earphone front cavity precursor, the earphone front cavity rear body of setting in earphone front cavity precursor one end and the earphone main body of setting in earphone front cavity precursor with earphone front cavity rear body one side. Earphone front cavity shell structure is the key assembly in acoustics design, and the front cavity mainly influences high frequency response, and the high frequency cutoff frequency and resonance peak are adjusted through the volume change, through the earphone front cavity precursor and earphone front cavity rear body are hinged, make the plug -in rod and the plug -in rod are hinged, and the oval plug -in board set up with the reserved slot are inserted in the earphone front cavity precursor one side when hinged, subsequently can make oval plug -in board and sealing washer contact after insertion, make the earphone front cavity precursor and earphone front cavity rear body can have good hinged effect when hinged, can have good sealing effect, thereby can avoid the air pressure imbalance because of the gap when using, can effectively avoid the diaphragm deformation because of the air pressure difference in the cavity.

Description

Technical Field

[0001] This utility model relates to the field of headphone front cavity technology, specifically to a headphone front cavity shell structure. Background Technology

[0002] The front cavity shell structure of the headphones is a key component in acoustic design. The front cavity mainly affects the high-frequency response. By changing the volume, the high-frequency cutoff frequency and resonant peak can be adjusted. Increasing the front cavity volume will shift the high-frequency peak to the left, reduce the high-frequency extension, and reduce high-frequency noise. The front cavity structure affects the radiation direction and diffusion range of sound waves through the design of the sound outlet and dustproof mesh.

[0003] After prolonged use, gaps may appear at the locking points of the aforementioned headphone front cavity shell structure due to wear and tear. This can lead to sound wave leakage, affecting the sound quality and reducing the user experience. Furthermore, these gaps can cause internal air pressure imbalances, resulting in diaphragm deformation due to the pressure difference within the cavity. Utility Model Content

[0004] The purpose of this invention is to provide a front cavity shell structure for headphones to solve the problem mentioned in the background art that gaps in the front cavity shell structure of headphones can easily cause air pressure imbalance and affect the user experience.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a front cavity shell structure for an earphone, including a front body of the earphone front cavity, a rear body of the earphone front cavity disposed at one end of the front body of the earphone front cavity, and an earphone body disposed on one side of the front body and the rear body of the earphone front cavity. A connecting rod is provided inside the rear body of the earphone front cavity, and the connecting rod is fixedly connected to the interior of the rear body of the earphone front cavity. The connecting rod is evenly distributed inside the rear body of the earphone front cavity. A reserved groove is provided inside one end of the rear body of the earphone front cavity. The reserved groove is elliptical in shape. A sealing gasket is provided inside the reserved groove, and a rubber block is provided inside the sealing gasket. The rubber block is elongated in shape.

[0006] Preferably, the rubber blocks are evenly distributed inside the sealing gasket, and a rubber ball is provided on one side of the rubber block, with the rubber ball evenly distributed on one side of the rubber block.

[0007] Preferably, the rubber block and the rubber ball are evenly distributed at both ends inside the sealing gasket.

[0008] Preferably, a fixedly connected docking rod is provided on one side of the front body of the earphone front cavity. The docking rod is evenly distributed inside the plugging rod, and the docking rod and the plugging rod are symmetrically distributed inside the front body and rear body of the earphone front cavity.

[0009] Preferably, one end of the connecting rod is provided with a reserved hole, and the reserved holes are symmetrically distributed inside the connecting rod.

[0010] Preferably, the plug rod has rubber blocks inside, and the rubber blocks are symmetrically distributed inside the plug rod.

[0011] Preferably, a limiting spring is provided on one side of the rubber block and welded to the plug rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The front cavity shell structure of this earphone can be used by engaging the front body of the earphone front cavity with the rear body of the earphone front cavity, so that the oval insert plate can be inserted into the reserved slot. At the same time, the cooperation between the sealing gasket and the oval insert plate can achieve a good sealing effect, thereby avoiding air pressure imbalance due to gaps during use and effectively preventing diaphragm deformation caused by air pressure difference inside the cavity. 2. The earphone front cavity shell structure allows the connecting rod to be inserted into the plug rod during use. The rubber locking block further enhances the stability of the plug rod and connecting rod after insertion, preventing gaps in the earphone front cavity shell structure caused by the earphone falling out, and thus improving the sealing performance of the earphone during use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the front body of the earphone front cavity of this utility model; Figure 3 This is a three-dimensional structural diagram of the sealing gasket of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the plug-in rod of this utility model; Figure 5 This is a three-dimensional cross-sectional view of the plug-in rod of this utility model; Figure 6 This utility model Figure 3 A magnified view of the structure at point A in the middle; Figure 7 This utility model Figure 5 A magnified schematic diagram of the structure at point B in the middle.

[0014] In the diagram: 1. Front body of the earphone front cavity; 2. Rear body of the earphone front cavity; 3. Earphone body; 4. Connecting rod; 5. Reserved slot; 6. Sealing gasket; 7. Rubber block; 8. Rubber ball; 9. Connecting rod; 10. Reserved hole; 11. Rubber clip; 12. Limiting spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-7 This utility model provides a technical solution: a front cavity shell structure for an earphone, including an earphone front cavity front body 1, an earphone front cavity rear body 2 disposed at one end of the earphone front cavity front body 1, and an earphone body 3 disposed on one side of the earphone front cavity front body 1 and the earphone front cavity rear body 2. The earphone front cavity rear body 2 is provided with a plug rod 4 inside, the plug rod 4 is fixedly connected to the inside of the earphone front cavity rear body 2, and the plug rod 4 is evenly distributed inside the earphone front cavity rear body 2. A reserved groove 5 is opened inside one end of the earphone front cavity rear body 2. The reserved groove 5 is elliptical in shape. A sealing gasket 6 is provided inside the reserved groove 5. A rubber block 7 is provided inside the sealing gasket 6. The rubber block 7 is elongated in shape.

[0017] The rubber block 7 is long and narrow, which can effectively increase the contact area during engagement, thereby improving the stability of engagement. An elliptical insert plate is provided at one end of the front body 1 of the earphone front cavity. The elliptical insert plate is not shown in the figure. The elliptical insert plate is fixedly connected to the front body 1 of the earphone front cavity, and the size of the elliptical insert plate can match the reserved slot 5 so that it can be connected synchronously during engagement.

[0018] The rubber blocks 7 are evenly distributed inside the sealing gasket 6. A rubber ball 8 is provided on one side of the rubber block 7. The rubber ball 8 is evenly distributed on one side of the rubber block 7. The rubber blocks 7 and the rubber ball 8 are evenly distributed at both ends inside the sealing gasket 6.

[0019] The rubber balls 8 are evenly distributed on one side of the rubber block 7, which increases the locking effect after installation by multiple interlocking, and further avoids gaps.

[0020] In use, the front body 1 of the earphone front cavity and the rear body 2 of the earphone front cavity can be engaged. After engagement, the plug rod 4 can engage with the docking rod 9. At the same time, during engagement, the elliptical insert plate on one side of the front body 1 of the earphone front cavity can be inserted into the reserved slot 5. After insertion, the elliptical insert plate can contact the sealing gasket 6. At the same time, the elliptical insert plate has a matching insertion groove for the rubber block 7 and the rubber ball 8. This allows the front body 1 of the earphone front cavity and the rear body 2 of the earphone front cavity to have a good engagement effect. When inserted into the sealing gasket 6, it can have a good sealing effect, thus avoiding air pressure imbalance due to gaps during use. It can effectively prevent diaphragm deformation caused by air pressure difference in the cavity. Furthermore, the rubber block 7 and the rubber ball 8 are evenly distributed inside the sealing gasket 6, which can further improve the locking effect during engagement.

[0021] A fixedly connected docking rod 9 is provided on one side of the front body 1 of the earphone front cavity. The docking rod 9 is evenly distributed inside the plugging rod 4, and the docking rod 9 and the plugging rod 4 are symmetrically distributed inside the front body 1 and the rear body 2 of the earphone front cavity. A reserved hole 10 is provided at one end of the docking rod 9. The reserved hole 10 is symmetrically distributed inside the docking rod 9. A rubber locking block 11 is provided inside the plugging rod 4. The rubber locking block 11 is symmetrically distributed inside the plugging rod 4. A limiting spring 12 is provided on one side of the rubber locking block 11 and welded to the plugging rod 4.

[0022] When the connecting rod 9 is inserted, it pushes the rubber locking block 11 inside the connecting rod 4, thereby allowing the rubber locking block 11 to move. After the connecting rod 9 is fully inserted, the rubber locking block 11 is released from its restraint and re-locks with the reserved hole 10.

[0023] During use, when the earphone is engaged, the connecting rod 9 can be inserted into the interior of the connecting rod 4. At the same time, the connecting rod 9 can squeeze the rubber locking block 11 during insertion, causing the rubber locking block 11 to move. As the rubber locking block 11 moves, it can squeeze the limiting spring 12 set on one side. After the connecting rod 9 is fully inserted, it can be fully inserted into the connecting rod 4. The multiple rubber locking blocks 11 can further improve the stability of the connection between the connecting rod 4 and the connecting rod 9 after insertion, preventing gaps in the earphone front cavity shell structure caused by the earphone falling, and steadily improving the sealing performance of the earphone during use.

[0024] In summary, the headphone front cavity shell structure is a key component in acoustic design. The front cavity mainly affects the high-frequency response. The high-frequency cutoff frequency and resonant peak are adjusted by changing the volume. By engaging the front body 1 and the rear body 2 of the headphone front cavity, the plug rod 4 engages with the docking rod 9. At the same time, during engagement, the elliptical insert plate on one side of the front body 1 engages with the reserved slot 5. After engagement, the elliptical insert plate contacts the sealing gasket 6, ensuring a good engagement and sealing effect between the front body 1 and the rear body 2 of the headphone front cavity. This prevents air pressure imbalance due to gaps during use and effectively avoids diaphragm deformation caused by air pressure differences within the cavity. The contents not described in detail in this specification are prior art known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A front cavity shell structure for an earphone, comprising an earphone front cavity front body (1), an earphone front cavity rear body (2) disposed at one end of the earphone front cavity front body (1), and an earphone body (3) disposed on one side of the earphone front cavity front body (1) and the earphone front cavity rear body (2), characterized in that: The earphone front cavity rear body (2) is provided with a plug rod (4), the plug rod (4) is fixedly connected to the earphone front cavity rear body (2), and the plug rod (4) is evenly distributed inside the earphone front cavity rear body (2); A reserved groove (5) is provided inside one end of the earphone front cavity rear body (2). The reserved groove (5) is elliptical in shape. A sealing gasket (6) is provided inside the reserved groove (5). A rubber block (7) is provided inside the sealing gasket (6). The rubber block (7) is elongated in shape.

2. The headphone front cavity shell structure according to claim 1, characterized in that: The rubber blocks (7) are evenly distributed inside the sealing gasket (6), and a rubber ball (8) is provided on one side of the rubber blocks (7). The rubber ball (8) is evenly distributed on one side of the rubber blocks (7).

3. The headphone front cavity shell structure according to claim 2, characterized in that: The rubber block (7) and the rubber ball (8) are evenly distributed at both ends inside the sealing gasket (6).

4. The headphone front cavity shell structure according to claim 1, characterized in that: A fixed connecting rod (9) is provided on one side of the front body (1) of the earphone front cavity. The connecting rod (9) is evenly distributed inside the plug rod (4), and the connecting rod (9) and the plug rod (4) are symmetrically distributed inside the front body (1) and the rear body (2) of the earphone front cavity.

5. The headphone front cavity shell structure according to claim 4, characterized in that: One end of the connecting rod (9) is provided with a reserved hole (10), and the reserved holes (10) are symmetrically distributed inside the connecting rod (9).

6. The headphone front cavity shell structure according to claim 1, characterized in that: The plug rod (4) is provided with rubber blocks (11) inside, and the rubber blocks (11) are symmetrically distributed inside the plug rod (4).

7. The headphone front cavity shell structure according to claim 6, characterized in that: One side of the rubber block (11) is provided with a limiting spring (12) that is welded to the plug rod (4).

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