Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a vibrating diaphragm assembly, a voice coil and a magnetic circuit assembly, a lower concave-convex bag is arranged in the central area of the vibrating diaphragm assembly, and a through hole is arranged on the lower concave-convex bag; the voice coil comprises a body and a lead, the body is connected with the diaphragm assembly, the lead comprises a fixed section, a deformation section and a conduction section which are connected in sequence, the fixed section is fixed on the diaphragm assembly, one end of the fixed section is connected with the body, the other end of the fixed section penetrates through the hole and is connected with the deformation section, and at least partial area of the deformation section is located in the concave area of the lower concave-convex bag; the magnetic circuit assembly is provided with a magnetic gap corresponding to the body and an avoiding hole used for avoiding the lower concave-convex bag. The sound production unit is novel in structure, the lead of the voice coil can have enough suspension length and does not occupy the space outside the body of the voice coil while a large-voice-coil large-amplitude design framework is adopted, and the performance of the sound production unit is further improved. The sound production unit can be kept miniaturized, so that the sound production unit can effectively adapt to an environment with limited installation environment.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a sound generating unit. Background Art

[0002] To improve the performance of the sound unit, existing technologies often use large voice coils and large-amplitude design architectures. However, the leads of the voice coils of large-amplitude sound units must have sufficient suspension length to avoid stress concentration and the possibility of wire breakage. The leads of the voice coils are generally designed to be outside the voice coil body. When the voice coil is enlarged, there is insufficient space outside the voice coil body to place the side magnets or leads, resulting in the inability to further improve the performance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a high-performance sound unit.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sound unit comprising:

[0005] A diaphragm assembly, wherein a central area of the diaphragm assembly is provided with a lower concave-convex package, and a through hole is provided on the lower concave-convex package;

[0006] A voice coil comprising a body and a lead, the body being connected to the diaphragm assembly, the lead comprising a fixed section, a deformable section, and a conductive section connected in sequence, the fixed section being fixed to the diaphragm assembly, one end of the fixed section being connected to the body, the other end of the fixed section passing through the via hole and connected to the deformable section, at least a portion of the deformable section being located within the concave region of the lower concave-convex bump;

[0007] A magnetic circuit component is provided, wherein the magnetic circuit component has a magnetic gap corresponding to the main body and an avoidance hole for avoiding the lower concave and convex bumps.

[0008] Furthermore, the avoidance hole is a blind hole structure or a through hole structure.

[0009] Furthermore, the via hole is located on the bottom wall or side wall of the lower concave-convex hump.

[0010] Furthermore, the diaphragm assembly includes a connected sound membrane and a dome, and the lower concave and convex package is arranged on the dome.

[0011] Furthermore, the deformation section is spiral or wavy.

[0012] Furthermore, it further includes a first colloid, and the fixing section is fixedly connected to the diaphragm assembly through the first colloid.

[0013] Furthermore, the first colloid covers the entire area of the fixing section located on the inner side of the diaphragm assembly.

[0014] Furthermore, the first colloid covers a portion of the fixing section located on the inner side of the diaphragm assembly, and the first colloid is close to the through hole and is arranged corresponding to the avoidance hole.

[0015] Furthermore, the first colloid blocks the via hole.

[0016] Furthermore, it further includes a second colloid, which is located in the concave area of the lower concave-convex package, and the other end of the fixed section is fixedly connected to the diaphragm assembly through the second colloid.

[0017] The beneficial effects of this utility model are as follows: the novel structure of the sound unit, while adopting a large voice coil and large amplitude design architecture, also allows the voice coil lead to have sufficient hanging length and does not occupy the space outside the voice coil body, which is conducive to further improving the performance of the sound unit. The diaphragm assembly has a lower concave-convex ridge, and at least a portion of the deformation section of the lead is located in the concave area of the lower concave-convex ridge, effectively reducing the deformation section's occupation of the sound unit's external space, ensuring that the sound unit can remain compact and effectively adapt to environments with limited installation space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the overall structure of the sound-emitting unit according to the first embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the sound unit of the first embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of the sound unit of the first embodiment of the present invention;

[0021] Figure 4 This is a structural diagram of a portion of the sound unit of the first embodiment of the present invention.

[0022] Description of labels:

[0023] 1. Basin rack;

[0024] 2. Diaphragm assembly; 21. Lower concave and convex bumps; 22. Via holes; 23. Sound membrane; 24. Dome;

[0025] 3. Voice coil; 31. Body; 32. Lead wire; 321. Fixed section; 322. Deformable section; 323. Conductive section;

[0026] 4. Magnetic circuit assembly; 41. Avoidance hole; 42. Yoke; 43. Center magnetic structure; 431. Avoidance groove; 44. Side magnetic structure;

[0027] 5. First colloid;

[0028] 6. Skeleton. DETAILED DESCRIPTION

[0029] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0030] Please refer to Figures 1 to 4 , sound unit, including:

[0031] The diaphragm assembly 2 has a lower concave-convex bump 21 in the central area thereof, and a through hole 22 is provided on the lower concave-convex bump 21;

[0032] The voice coil 3 includes a body 31 and a lead 32. The body 31 is connected to the diaphragm assembly 2. The lead 32 includes a fixed section 321, a deformable section 322, and a conductive section 323, which are connected in sequence. The fixed section 321 is fixed to the diaphragm assembly 2. One end of the fixed section 321 is connected to the body 31, and the other end of the fixed section 321 passes through the through hole 22 and connects to the deformable section 322. At least a portion of the deformable section 322 is located in the recessed area of the lower concave convex bump 21.

[0033] The magnetic circuit component 4 has a magnetic gap corresponding to the main body 31 and an avoidance hole 41 for avoiding the lower concave and convex bump 21.

[0034] As can be seen from the above description, the beneficial effects of the present invention are: the novel structure of the sound unit, while adopting a large voice coil 3 and a large amplitude design architecture, also allows the lead wire 32 of the voice coil 3 to have sufficient hanging length and does not occupy the space outside the body 31 of the voice coil 3, which is conducive to further improving the performance of the sound unit. The diaphragm assembly 2 has a lower concave-convex ridge 21, and at least a portion of the deformation section 322 of the lead wire 32 is located in the concave area of the lower concave-convex ridge 21, effectively reducing the deformation section 322 from the external space of the sound unit, ensuring that the sound unit can remain compact, making the sound unit effectively adaptable to environments with limited installation space.

[0035] Furthermore, the avoidance hole 41 is a blind hole structure or a through hole structure.

[0036] It can be seen from the above description that the depth of the avoidance hole 41 can be selected and set according to actual needs.

[0037] Furthermore, the via hole 22 is located on the bottom wall or side wall of the lower concave-convex hump 21 .

[0038] It can be seen from the above description that the position of the via hole 22 on the lower concave-convex hump 21 can be selected and set according to actual needs.

[0039] Furthermore, the diaphragm assembly 2 includes a connected sound membrane 23 and a dome 24 , and the lower concave-convex bump 21 is provided on the dome 24 .

[0040] As can be seen from the above description, the lower concave-convex bump 21 can not only improve the structural strength of the dome 24 itself, but also provide a space for accommodating the deformation section 322, thus achieving multiple uses of one item.

[0041] Furthermore, the deformation section 322 is spiral or wavy.

[0042] As can be seen from the above description, the specific shape of the deformation section 322 can be set as needed.

[0043] Furthermore, a first colloid 5 is included, and the fixing section 321 is fixedly connected to the diaphragm assembly 2 via the first colloid 5 .

[0044] It can be seen from the above description that the connection method between the fixing section 321 and the diaphragm assembly 2 is simple and reliable.

[0045] Furthermore, the first colloid 5 covers the entire area of the fixing section 321 located inside the diaphragm assembly 2 .

[0046] It can be seen from the above description that the fixing section 321 and the diaphragm assembly 2 can be connected more stably.

[0047] Furthermore, the first colloid 5 covers a portion of the fixing section 321 located on the inner side of the diaphragm assembly 2 . The first colloid 5 is disposed close to the through hole 22 and corresponding to the avoidance hole 41 .

[0048] As can be seen from the above description, the first colloid 5 is used in a small amount, which can reduce the manufacturing cost of the sound unit. The first colloid 5 is arranged corresponding to the avoidance hole 41 so that the avoidance hole 41 can play the effect of avoiding the first colloid 5, thereby making the avoidance hole 41 play a multi-purpose effect.

[0049] Furthermore, the first colloid 5 blocks the via hole 22 .

[0050] As can be seen from the above description, the first colloid 5 not only serves to connect the fixed section 321 and the diaphragm assembly 2 , but also serves to improve the sealing performance of the sound unit, thus achieving multiple uses of one object.

[0051] Furthermore, a second colloid is included, and the second colloid is located in the concave area of the lower concave-convex bump 21 , and the other end of the fixing section 321 is fixedly connected to the diaphragm assembly 2 through the second colloid.

[0052] As can be seen from the above description, using the second colloid to fix the fixing section 321 does not require the magnetic circuit component 4 to be additionally provided with an avoidance structure for avoiding the second colloid, so that the overall volume of the magnetic circuit component 4 can be set larger, thereby greatly improving the performance of the sound unit.

[0053] Example 1

[0054] Please refer to Figures 1 to 4 , the utility model embodiment 1 is: a sound unit, including a basin frame 1, a diaphragm assembly 2, a voice coil 3 and a magnetic circuit assembly 4, the diaphragm assembly 2 and the magnetic circuit assembly 4 are respectively connected to the basin frame 1, the central area of the diaphragm assembly 2 is provided with a lower concave convex 21, and the lower concave convex 21 is provided with a through hole 22; the voice coil 3 includes a body 31 and a lead 32, the body 31 is connected to the diaphragm assembly 2, the lead 32 includes a fixed section 321, a deformation section 322 and a conductive section 323 connected in sequence, the fixed section 321 is fixed to the diaphragm assembly 2 On the upper part, one end of the fixed section 321 is connected to the main body 31, and the other end of the fixed section 321 passes through the through hole 22 and is connected to the deformation section 322. At least part of the deformation section 322 is located in the recessed area of the lower concave convex bulge 21. The deformation section 322 is spiral, wavy or other shapes, and can be set according to actual needs. The magnetic circuit component 4 has a magnetic gap corresponding to the main body 31 and an avoidance hole 41 for avoiding the lower concave convex bulge 21. The avoidance hole 41 is a blind hole structure or a through hole structure.

[0055] In this embodiment, the magnetic circuit assembly 4 includes a yoke 42 and a central magnetic structure 43 and a side magnetic structure 44 respectively provided on the yoke 42. The magnetic gap is formed between the central magnetic structure 43 and the side magnetic structure 44. The avoidance hole 41 is provided on the central magnetic structure 43. The central magnetic structure 43 includes a central magnetic steel and a central washer. The bottom surface of the central magnetic steel is connected to the yoke 42, and the top surface of the central magnetic steel is connected to the bottom surface of the center washer. The yoke 42 is indirectly connected to the basin frame 1 through the side magnetic structure 44. The side magnetic structure 44 includes side magnetic steel and side washers. The bottom of the side magnetic steel is connected to the yoke 42, and the top surface of the side magnetic steel is connected to the side washer and / or the basin frame 1. The side washer is connected to the basin frame 1. In order to further improve the performance of the sound unit, preferably, the side magnetic steel and the side washer are respectively in the shape of a ring frame.

[0056] In other embodiments, a flange may be provided on the yoke 42 to replace the edge magnetic structure 44 , and the flange is formed by bending a partial area of the yoke 42 .

[0057] In order to prevent the fixed section 321 from colliding with the central magnetic structure 43 when the sound unit vibrates with a large amplitude, in this embodiment, an avoidance groove 431 is provided on the top surface of the central magnetic structure 43. The avoidance groove 431 is connected to the avoidance hole 41. The avoidance groove 431 is used to avoid the fixed section 321. Specifically, the avoidance groove 431 is at least partially located on the central washer. The avoidance groove 431 can be a pressed groove or a milled groove.

[0058] In some embodiments, the via hole 22 is located on the side wall of the lower concave-convex hump 21. However, in this embodiment, the via hole 22 is located on the bottom wall of the lower concave-convex hump 21.

[0059] The diaphragm assembly 2 includes a connected diaphragm 23 and a dome 24. Preferably, the lower concave-convex bump 21 is provided on the dome 24. Specifically, the diaphragm 23 includes an inner fixing portion, a folding ring portion, and an outer fixing portion connected sequentially from the inside to the outside. The outer fixing portion is connected to the basin frame 1. The central area of the inner fixing portion is provided with a window. The dome 24 is connected to the inner fixing portion and closes the window.

[0060] The sound-emitting unit further includes a first colloid 5 , and the fixing section 321 is fixedly connected to the diaphragm assembly 2 via the first colloid 5 .

[0061] In some embodiments, the first colloid 5 covers the entire area of the fixing section 321 located inside the diaphragm assembly 2. In this embodiment, the first colloid 5 covers a portion of the area of the fixing section 321 located inside the diaphragm assembly 2, and the first colloid 5 is disposed near the via hole 22 and corresponding to the avoidance hole 41.

[0062] As a preferred embodiment, the first colloid 5 blocks the via hole 22 .

[0063] In addition, in other embodiments, the sound-emitting unit further includes a second colloid, which is located in the recessed area of the lower concave-convex bump 21, and the other end of the fixed section 321 is fixedly connected to the diaphragm assembly 2 through the second colloid. At this time, the sound-emitting unit can be accepted with or without the first colloid 5.

[0064] There are multiple leads 32 , which are axially symmetrical or centrally symmetrical. The leads 32 exert symmetrical and balanced pulling forces on the vibration system, thereby preventing the vibration system from being unbalanced due to the pulling forces, thereby causing rolling vibration of the voice coil 3 .

[0065] In an actual product, the sound unit may further include a skeleton 6 . In this case, the skeleton 6 connects the body 31 and the diaphragm assembly 2 . In other words, the body 31 is indirectly connected to the diaphragm assembly 2 through the skeleton 6 .

[0066] In summary, the sound unit provided by the present invention has a novel structure. While adopting a large voice coil and large amplitude design, the voice coil leads also have sufficient hanging length and do not occupy the space outside the voice coil body, which is conducive to further improving the performance of the sound unit. The diaphragm assembly has a lower concave-convex bulge, and at least a portion of the deformation section of the lead is located within the concave area of the lower concave-convex bulge. This effectively reduces the deformation section's occupation of the sound unit's external space, ensuring that the sound unit can remain compact and effectively adapt to environments with limited installation space.

[0067] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A sound unit, characterized in that: include A diaphragm assembly, wherein a central area of the diaphragm assembly is provided with a lower concave-convex package, and a through hole is provided on the lower concave-convex package; A voice coil comprising a body and a lead, the body being connected to the diaphragm assembly, the lead comprising a fixed section, a deformable section, and a conductive section connected in sequence, the fixed section being fixed to the diaphragm assembly, one end of the fixed section being connected to the body, the other end of the fixed section passing through the via hole and connected to the deformable section, at least a portion of the deformable section being located within the concave region of the lower concave-convex bump; A magnetic circuit component is provided, wherein the magnetic circuit component has a magnetic gap corresponding to the main body and an avoidance hole for avoiding the lower concave and convex bumps.

2. The sound unit according to claim 1, characterized in that The avoidance hole is a blind hole structure or a through hole structure.

3. The sound unit according to claim 1, wherein: The via hole is located on the bottom wall or the side wall of the lower concave-convex package.

4. The sound unit according to claim 1, characterized in that The diaphragm assembly includes a connected sound membrane and a dome, and the lower concave and convex package is arranged on the dome.

5. The sound unit according to claim 1, characterized in that: The deformation section is spiral or wavy.

6. The sound unit according to claim 1, characterized in that It also includes a first colloid, and the fixing section is fixedly connected to the diaphragm assembly through the first colloid.

7. The sound unit according to claim 6, characterized in that: The first colloid covers the entire area of the fixing section located on the inner side of the diaphragm assembly.

8. The sound unit according to claim 6, characterized in that The first colloid covers a portion of the fixing section located on the inner side of the diaphragm assembly, and the first colloid is close to the through hole and is arranged corresponding to the avoidance hole.

9. The sound unit according to claim 6, characterized in that: The first colloid blocks the via hole.

10. The sound unit according to claim 1, characterized in that: It also includes a second colloid, which is located in the concave area of the lower concave-convex package, and the other end of the fixed segment is fixedly connected to the diaphragm assembly through the second colloid.

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