Sound unit

Abstract

This utility model discloses a sound-generating unit, including a body and a front cover. The body includes a magnetic circuit system, which includes a yoke. The front cover is fitted onto the body and has a surrounding wall. The bottom of the surrounding wall contacts the yoke, and the surrounding wall has an isolation and ventilation hole that connects the outside to the inside of the body. This sound-generating unit has a novel structure. The surrounding wall of the front cover extends towards the yoke to contact it, and the isolation and ventilation hole on the surrounding wall ensures ventilation inside the body while also isolating sound-absorbing particles. This eliminates the need for a mesh / metal mesh, simplifies the structure and assembly process of the sound-generating unit, improves production efficiency, and reduces assembly costs.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic converter technology, and in particular to a sound generating unit. Background Technology

[0002] As a commonly used electroacoustic transducer that converts electrical energy into sound energy, the sound-generating unit plays an indispensable role in the sound amplifier system.

[0003] The sound-generating module includes a module housing and a sound-generating unit disposed within the module housing. To improve the acoustic performance of the sound-generating module, existing technologies fill the rear cavity of the module housing with sound-absorbing particles, thereby increasing the virtual rear cavity of the sound-generating module. To prevent the sound-absorbing particles from entering the sound-generating unit and causing noise, existing technologies add three-dimensional mesh or metal mesh components at the leakage holes of the sound-generating unit. The addition of three-dimensional mesh or metal mesh components undoubtedly makes the structure of the sound-generating unit more complex and inconvenient to assemble. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sound generating unit with a simple structure and convenient assembly.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sound-generating unit, comprising: The body includes a magnetic circuit system, which includes a yoke. A front cover is provided on the body. The front cover has a surrounding wall that surrounds the body. The bottom of the surrounding wall contacts the yoke. The surrounding wall has an isolation vent that connects the outside to the inside of the body.

[0006] Furthermore, the magnetic circuit system also includes a side magnetic component and a central magnetic component respectively disposed on the yoke, a magnetic gap is formed between the central magnetic component and the side magnetic component, and a gap communicating with the magnetic gap is provided between the side magnetic component and the enclosure wall.

[0007] Furthermore, the edge magnetic assembly includes an edge magnet and an edge washer, the edge magnet connecting the edge washer to the yoke, the gap including at least a first portion located between the edge magnet and the enclosure, and the isolation vent hole corresponding to the first portion.

[0008] Furthermore, the gap also includes a second portion located between the edge washer and the enclosure, the second portion being connected to the first portion.

[0009] Furthermore, the enclosure is fixedly connected to the yoke.

[0010] Furthermore, the enclosure is bonded or welded to the yoke.

[0011] Furthermore, the bottom end face of the enclosure contacts the yoke.

[0012] Furthermore, the inner surface of the bottom of the enclosure contacts the outer wall surface of the yoke.

[0013] Furthermore, the enclosure is rectangular in shape, and at least one set of two opposite sidewalls of the enclosure are respectively provided with the isolation ventilation holes.

[0014] Furthermore, each side wall of the enclosure is provided with the isolation and ventilation holes.

[0015] The beneficial effects of this utility model are as follows: The sound-generating unit has a novel structure. The wall of the front cover extends towards the yoke to contact the yoke, and an isolation and ventilation hole is provided on the wall. While ensuring the ventilation inside the body, the wall plays the role of isolating sound-absorbing particles. The setting of mesh / metal mesh is eliminated, which simplifies the structure of the sound-generating unit and the assembly process of the sound-generating unit, which helps to improve the production efficiency of the sound-generating unit and reduce the assembly cost of the sound-generating unit. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sound-generating unit; Figure 2 This is a structural schematic diagram of the sound-generating unit from another perspective; Figure 3 This is a cross-sectional view of the sound-generating unit; Figure 4 This is a structural diagram of the internal structure of the sound-generating unit; Figure 5 This is a schematic diagram of a sound-generating unit with another structure.

[0017] Label Explanation: 1. Pot stand; 2. Vibration system; 21. Voice coil; 22. Diaphragm; 3. Magnetic circuit system; 31. Yoke; 32. Central magnetic assembly; 331. Side magnet; 332. Side washer; 34. Magnetic gap; 4. Front cover; 41. Enclosure; 411. Isolation and ventilation holes; 42. Breathable mesh fabric; 5. Gaps. Detailed Implementation

[0018] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0019] Please refer to Figures 1 to 5The sound-generating unit includes a body and a front cover 4. The body includes a magnetic circuit system 3, which includes a yoke 31. The front cover 4 covers the body and has a surrounding wall 41. The bottom of the surrounding wall 41 contacts the yoke 31. The surrounding wall 41 has an isolation vent 411 that connects the outside to the inside of the body.

[0020] As can be seen from the above description, the beneficial effects of this utility model are as follows: The sound-generating unit has a novel structure. The wall 41 of the front cover 4 extends towards the yoke 31 to contact the yoke 31, and an isolation and ventilation hole 411 is provided on the wall 41. While ensuring the ventilation inside the body, the wall 41 plays the role of isolating sound-absorbing particles. The setting of mesh / metal mesh is eliminated, which simplifies the structure of the sound-generating unit and the assembly process of the sound-generating unit, which is conducive to improving the production efficiency of the sound-generating unit and reducing the assembly cost of the sound-generating unit.

[0021] Furthermore, the magnetic circuit system 3 also includes a side magnetic component and a central magnetic component 32 respectively disposed on the yoke 31, a magnetic gap 34 is formed between the central magnetic component 32 and the side magnetic component, and a gap 5 communicating with the magnetic gap 34 is provided between the side magnetic component and the enclosure wall 41.

[0022] As can be seen from the above description, a gap 5 is formed between the side magnetic component and the enclosure 41. The side magnetic component will not block the isolation vent 411. The magnetic gap 34 inside the body can smoothly ventilate with the outside, which is conducive to ensuring the performance of the sound unit.

[0023] Furthermore, the edge magnetic assembly includes an edge magnet 331 and an edge washer 332. The edge magnet 331 connects the edge washer 332 and the yoke 31. The gap 5 includes at least a first portion located between the edge magnet 331 and the enclosure 41. The isolation vent 411 is provided corresponding to the first portion.

[0024] As can be seen from the above description, the isolation vent 411 is set in the first part to ensure that each area of ​​the isolation vent 411 is not blocked by the side magnetic component, which is conducive to improving the smoothness of ventilation to a greater extent.

[0025] Furthermore, the gap 5 also includes a second portion located between the edge washer 332 and the enclosure 41, the second portion being connected to the first portion.

[0026] As can be seen from the above description, the existence of the second part allows an assembly gap to be formed between the edge washer 332 and the enclosure 41, which helps to reduce the assembly precision requirements of the sound-generating unit.

[0027] Furthermore, the enclosure 41 is fixedly connected to the yoke 31.

[0028] Furthermore, the enclosure 41 is bonded or welded to the yoke 31.

[0029] As can be seen from the above description, the fixed connection between the enclosure 41 and the yoke 31 is beneficial to improving the structural stability of the sound-generating unit.

[0030] Furthermore, the bottom end face of the enclosure 41 contacts the yoke 31.

[0031] Furthermore, the inner surface of the bottom of the enclosure 41 contacts the outer wall surface of the yoke 31.

[0032] As can be seen from the above description, there are multiple phase position relationships between the bottom of the enclosure 41 and the yoke 31, which enriches the diversity of the sound-generating unit structure.

[0033] Furthermore, the enclosure 41 is rectangular in shape, and at least one set of two opposite sidewalls of the enclosure 41 are respectively provided with the isolation ventilation holes 411.

[0034] As can be seen from the above description, the sound-generating unit can ventilate symmetrically, which is beneficial to improving the symmetry of the sound-generating unit's vibration.

[0035] Furthermore, each side wall of the enclosure 41 is provided with the isolation and ventilation holes 411.

[0036] As can be seen from the above description, each side wall of enclosure 41 is ventilated, which makes the sound-generating unit more breathable.

[0037] Please refer to Figures 1 to 5 The first embodiment of this utility model is as follows: Please refer to... Figures 1 to 4 The sound-generating unit includes a body and a front cover 4. The body includes a frame 1 and a vibration system 2 and a magnetic circuit system 3 respectively connected to the frame 1. The magnetic circuit system 3 includes a yoke 31 and a central magnetic component 32 and a side magnetic component respectively disposed on the yoke 31. A magnetic gap 34 is formed between the central magnetic component 32 and the side magnetic component. The central magnetic component 32 includes a central washer and a central magnet located below the central washer. The central magnet connects the central washer and the yoke 31. The side magnetic component includes a side washer 332 and a side magnet 331 located below the side washer 332. The side magnet 331 connects the side washer 332 and the yoke 31. The side washer 332 is connected to the frame 1. In one or more embodiments, the basin stand 1 is made of metal material. In this case, it is preferable that the basin stand 1 and the washer 332 are integrally formed as a single structure. In some embodiments, it is also feasible for the basin stand 1 to be a plastic structural component. In this case, the washer 332 and the basin stand 1 can be integrally formed by insert injection molding.

[0038] The vibration assembly includes a voice coil 21 and a diaphragm assembly that connects the voice coil 21 to the frame 1. The diaphragm assembly includes a diaphragm 22, the outer edge of which is connected to the frame 1. The voice coil 21 is disposed corresponding to the magnetic gap 34.

[0039] The front cover 4 is mounted on the main body. The front cover 4 has a surrounding wall 41 that surrounds the main body. The bottom of the surrounding wall 41 contacts the yoke 31. The surrounding wall 41 is provided with an isolation and ventilation hole 411 that connects the outside world with the inside of the main body. The top of the front cover 4 is provided with a window, and a breathable mesh 42 is provided at the window.

[0040] The edge magnetic assembly and the enclosure 41 have a gap 5 communicating with the magnetic gap 34. The gap 5 includes at least a first portion located between the edge magnet 331 and the enclosure 41, and preferably the isolation vent 411 is provided corresponding to the first portion. Optionally, the gap 5 also includes a second portion located between the edge washer 332 and the enclosure 41, and the second portion communicates with the first portion.

[0041] The enclosure 41 is rectangular in shape, and at least one set of two opposite sidewalls of the enclosure 41 are respectively provided with the isolation and ventilation holes 411. In this embodiment, each sidewall of the enclosure 41 is provided with the isolation and ventilation holes 411.

[0042] To improve the structural stability of the sound-generating unit, the enclosure 41 is fixedly connected to the yoke 31. The specific methods of fixing the enclosure 41 to the yoke 31 include, but are not limited to, bonding and welding.

[0043] like Figures 1 to 3 As shown, the bottom end face of the enclosure 41 contacts the yoke 31, or, as... Figure 5 As shown, the inner surface of the bottom of the enclosure 41 contacts the outer wall surface of the yoke 31.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sound-generating unit, characterized in that, include The body includes a magnetic circuit system, which includes a yoke. A front cover is provided on the body. The front cover has a surrounding wall that surrounds the body. The bottom of the surrounding wall contacts the yoke. The surrounding wall has an isolation vent that connects the outside to the inside of the body.

2. The sound-generating unit according to claim 1, characterized in that, The magnetic circuit system further includes a side magnetic component and a central magnetic component respectively disposed on the yoke, a magnetic gap is formed between the central magnetic component and the side magnetic component, and a gap communicating with the magnetic gap is provided between the side magnetic component and the enclosure wall.

3. The sound-generating unit according to claim 2, characterized in that, The edge magnetic assembly includes an edge magnet and an edge washer, the edge magnet connecting the edge washer to the yoke, the gap including at least a first portion located between the edge magnet and the enclosure, and the isolation vent hole corresponding to the first portion.

4. The sound-generating unit according to claim 3, characterized in that, The gap also includes a second portion located between the edge washer and the enclosure, the second portion being connected to the first portion.

5. The sound-generating unit according to claim 1, characterized in that, The enclosure wall is fixedly connected to the yoke.

6. The sound-generating unit according to claim 5, characterized in that, The enclosure wall is bonded or welded to the yoke.

7. The sound-generating unit according to claim 1, characterized in that, The bottom end face of the enclosure contacts the yoke.

8. The sound-generating unit according to claim 1, characterized in that, The inner surface of the bottom of the enclosure wall contacts the outer wall surface of the yoke.

9. The sound-generating unit according to claim 1, characterized in that, The enclosure is rectangular, and at least one set of two opposite sidewalls of the enclosure are provided with the isolation and ventilation holes.

10. The sound-generating unit according to claim 9, characterized in that, Each side wall of the enclosure is provided with the aforementioned isolation and ventilation holes.

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