Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a basin stand, a diaphragm assembly, a magnetic circuit assembly and a voice coil, the vibrating diaphragm assembly and the magnetic circuit assembly are respectively connected with the basin frame, the magnetic circuit assembly comprises a yoke and a central magnetic structure arranged on the yoke, the central magnetic structure is provided with a through hole, the yoke is provided with a via hole, and the via hole is communicated with the bottom surface of the yoke and the through hole; the voice coil comprises a body and a lead which are connected, the body is connected with the diaphragm assembly, the lead comprises a fixed section, a deformation section and a penetrating section which are connected in sequence, the fixed section is fixed on one side, close to the yoke, of the diaphragm assembly, the deformation section is located in the penetrating hole, and one end, away from the deformation section, of the penetrating section penetrates through the hole. 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.

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] basin rack;

[0006] a diaphragm assembly, the diaphragm assembly being connected to the basin frame;

[0007] A magnetic circuit assembly connected to the basin frame, comprising a yoke and a central magnetic structure provided on the yoke, wherein the central magnetic structure is provided with a through hole, and the yoke is provided with a via hole, wherein the via hole connects the bottom surface of the yoke with the through hole;

[0008] The voice coil includes a main body and a lead connected to each other, the main body is connected to the diaphragm assembly, the lead includes a fixed section, a deformable section and a through section connected in sequence, the fixed section is fixed to the side of the diaphragm assembly close to the yoke, the deformable section is located in the through hole, and the through section passes through the through hole at one end away from the deformable section.

[0009] Furthermore, the through hole is provided in a central area of the central magnetic structure.

[0010] Furthermore, the top surface of the central magnetic structure is provided with an avoidance groove for avoiding the fixed section.

[0011] Furthermore, the fixed section is fixedly connected to the diaphragm assembly via a first colloid.

[0012] Furthermore, the first colloid is arranged close to the connection between the fixed section and the deformable section.

[0013] Furthermore, the first colloid is arranged corresponding to the through hole.

[0014] Furthermore, the first colloid covers the entire area of the fixing section.

[0015] Furthermore, the deformation section is spiral or wavy.

[0016] Furthermore, there are multiple leads, and the multiple leads are axially symmetrical or centrally symmetrical.

[0017] Furthermore, a second colloid is included, and a partial area of the through-section is fixedly connected to the yoke through the second colloid.

[0018] The beneficial effects of the present invention are as follows: the sound unit has a novel structure, and while adopting a large voice coil and large amplitude design architecture, the lead of the voice coil can also have a sufficient hanging length and will not occupy the outer space of the voice coil body, which is conducive to further improving the performance of the sound unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded view of the sound unit of the first embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of the sound unit of the first embodiment of the present invention;

[0021] Figure 3 This is a structural diagram of part of the sound unit of the first embodiment of the present invention.

[0022] Description of labels:

[0023] 1. Basin rack;

[0024] 2. Diaphragm assembly;

[0025] 3. Magnetic circuit assembly; 31. Yoke; 311. Through hole; 32. Center magnetic structure; 321. Through hole; 322. Avoidance groove; 323. Center magnetic steel; 324. Center washer; 33. Side magnetic structure; 331. Side magnetic steel; 332. Side washer;

[0026] 4. Voice coil; 41. Body; 42. Lead wire; 421. Fixed section; 422. Deformation section; 423. Through section;

[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 3 , sound unit, including:

[0031] Basin rack 1;

[0032] A diaphragm assembly 2, wherein the diaphragm assembly 2 is connected to the basin frame 1;

[0033] a magnetic circuit assembly 3 connected to the basin frame 1, comprising a yoke 31 and a central magnetic structure 32 provided on the yoke 31, wherein the central magnetic structure 32 is provided with a through hole 321, and the yoke 31 is provided with a through hole 311, wherein the through hole 311 connects the bottom surface of the yoke 31 with the through hole 321;

[0034] The voice coil 4 includes a main body 41 and a lead 42 connected to each other. The main body 41 is connected to the diaphragm assembly 2. The lead 42 includes a fixed section 421, a deformable section 422 and a through section 423 connected in sequence. The fixed section 421 is fixed to the side of the diaphragm assembly 2 close to the yoke 31. The deformable section 422 is located in the through hole 321. The through section 423 extends out of the through hole 311 at one end away from the deformable section 422.

[0035] From the above description, it can be seen that the beneficial effects of the present invention are: the sound unit has a novel structure, and while adopting a large voice coil 4 and a large amplitude design architecture, the lead 42 of the voice coil 4 can also have a sufficient hanging length and will not occupy the outer space of the body 41 of the voice coil 4, which is conducive to further improving the performance of the sound unit.

[0036] Furthermore, the through hole 321 is provided in the central area of the central magnetic structure 32 .

[0037] From the above description, it can be seen that the magnetic field utilization rate of the central area of the central magnetic structure 32 is low. Setting a through hole 321 in the central area of the central magnetic structure 32 can reduce the influence of the setting of the through hole 321 on the magnetic field strength of the sound unit. At the same time, it can make the diaphragm assembly 2 more balanced in force, which is conducive to improving the polarization and rolling vibration of the voice coil 4.

[0038] Furthermore, a top surface of the central magnetic structure 32 is provided with an avoidance groove 322 for avoiding the fixed section 421 .

[0039] As can be seen from the above description, the arrangement of the avoidance groove 322 can prevent the lead wire 42 from colliding with the central magnetic structure 32 and generating noise when the voice coil 4 vibrates with a large amplitude.

[0040] Furthermore, the fixing section 421 is fixedly connected to the diaphragm assembly 2 via the first colloid 5 .

[0041] It can be seen from the above description that the connection method between the fixing section 421 and the diaphragm assembly 2 is simple and reliable.

[0042] Furthermore, the first colloid 5 is disposed near the connection between the fixed section 421 and the deformable section 422 .

[0043] From the above description, it can be seen that the amount of the first colloid 5 used is small, which can reduce the manufacturing cost of the sound unit.

[0044] Furthermore, the first colloid 5 is disposed corresponding to the through hole 321 .

[0045] As can be seen from the above description, the through hole 321 can play a role in avoiding air for the first colloid 5 , thereby preventing the first colloid 5 from colliding with the central magnetic structure 32 when the diaphragm assembly 2 vibrates with a large amplitude.

[0046] Furthermore, the first colloid 5 covers the entire area of the fixing section 421 .

[0047] It can be seen from the above description that the fixing section 421 and the diaphragm assembly 2 can be connected more stably.

[0048] Furthermore, the deformation section 422 is spiral or wavy.

[0049] As can be seen from the above description, the specific shape of the deformation section 422 can be set as needed.

[0050] Furthermore, there are multiple leads 42 , and the multiple leads 42 are axially symmetrical or centrally symmetrical.

[0051] As can be seen from the above description, the traction force exerted by the lead wire 42 on the vibration system is symmetrically balanced, which can prevent the vibration system from being unbalanced due to the influence of the traction force, thereby preventing the voice coil 4 from rolling.

[0052] Furthermore, a second colloid is included, and a partial area of the through section 423 is fixedly connected to the yoke 31 via the second colloid.

[0053] As can be seen from the above description, the provision of the second colloid can improve the phenomenon of the lead 42 shaking arbitrarily, ensuring that the lead 42 will not collide with the yoke 31, so that the deformation section 422 can effectively exert the deformation effect.

[0054] Example 1

[0055] Please refer to Figures 1 to 3, the utility model embodiment 1 is: a sound unit, including a basin 1, a diaphragm assembly 2, a magnetic circuit assembly 3 and a voice coil 4; the diaphragm assembly 2 and the magnetic circuit assembly 3 are respectively connected to the basin 1, the magnetic circuit assembly 3 includes a yoke 31 and a central magnetic structure 32 provided on the yoke 31, the central magnetic structure 32 is provided with a through hole 321, the yoke 31 is provided with a through hole 311, the through hole 311 connects the bottom surface of the yoke 31 and the through hole 321; the voice coil 4 includes a body 41 connected to The lead 42, the main body 41 is connected to the diaphragm assembly 2, the lead 42 includes a fixed section 421, a deformation section 422 and a through section 423 connected in sequence, the fixed section 421 is fixed to the side of the diaphragm assembly 2 close to the yoke 31, the deformation section 422 is located in the through hole 321, and the through section 423 passes through the through hole 311 at one end away from the deformation section 422. The deformation section 422 is spiral, wavy or other shapes, and can be set according to actual needs.

[0056] In this embodiment, the magnetic circuit assembly 3 further includes a side magnetic structure 33 provided on the yoke 31, a magnetic gap being formed between the side magnetic structure 33 and the central magnetic structure 32, the body 41 being provided corresponding to the magnetic gap, the yoke 31 being indirectly connected to the basin frame 1 via the side magnetic structure 33, the side magnetic structure 33 including a side magnetic steel 331 and a side washer 332, the bottom of the side magnetic steel 331 being connected to the yoke 31, the top surface of the side magnetic steel 331 being connected to the side washer 332 and / or the basin frame 1, and the side washer 332 being connected to the basin frame 1. To further improve the performance of the sound unit, preferably, the side magnetic steel 331 and the side washer 332 are each in the shape of a ring frame.

[0057] In other embodiments, a flange may be provided on the yoke 31 to replace the edge magnetic structure 33 , and the flange is formed by bending a partial area of the yoke 31 .

[0058] As a preferred embodiment, the through hole 321 is provided in the central area of the central magnetic structure 32 , and the through hole 321 connects the top surface and the bottom surface of the central magnetic structure 32 .

[0059] The top surface of the central magnetic structure 32 is provided with an escape groove 322 for circumventing the fixed section 421. The escape groove 322 can be a pressed groove or a milled groove. Specifically, the central magnetic structure 32 includes a central magnetic steel 323 and a central washer 324. The bottom surface of the central magnetic steel 323 is connected to the yoke 31, and the top surface of the central magnetic steel 323 is connected to the bottom surface of the central washer 324. The escape groove 322 is provided on the top surface of the central washer 324, and the through hole 321 connects the top surface of the central washer 324 and the bottom surface of the central magnetic steel 323.

[0060] The fixed section 421 is fixedly connected to the diaphragm assembly 2 via a first colloid 5. In some embodiments, the first colloid 5 covers the entire area of the fixed section 421. In this embodiment, the first colloid 5 is arranged near the connection between the fixed section 421 and the deformation section 422. Preferably, the first colloid 5 is arranged corresponding to the through hole 321.

[0061] There are multiple leads 42 , and the multiple leads 42 are axially symmetrical or centrally symmetrical.

[0062] Optionally, the sound-emitting unit further includes a second colloid, and a portion of the through-section 423 is fixedly connected to the yoke 31 via the second colloid. Preferably, the second colloid fills the gap between the through-hole 311 and the through-section 423.

[0063] In an actual product, the sound unit may further include a skeleton 6 . In this case, the skeleton 6 connects the body 41 and the diaphragm assembly 2 . In other words, the body 41 is indirectly connected to the diaphragm assembly 2 through the skeleton 6 .

[0064] In summary, the sound unit provided by the present invention has a novel structure. While adopting a large voice coil and large amplitude design architecture, the lead of the voice coil can also have a sufficient hanging length and will not occupy the space outside the voice coil body, which is conducive to further improving the performance of the sound unit.

[0065] 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 basin rack; a diaphragm assembly, the diaphragm assembly being connected to the basin frame; A magnetic circuit assembly connected to the basin frame, comprising a yoke and a central magnetic structure provided on the yoke, wherein the central magnetic structure is provided with a through hole, and the yoke is provided with a via hole, wherein the via hole connects the bottom surface of the yoke with the through hole; The voice coil includes a main body and a lead connected to each other, the main body is connected to the diaphragm assembly, the lead includes a fixed section, a deformable section and a through section connected in sequence, the fixed section is fixed to the side of the diaphragm assembly close to the yoke, the deformable section is located in the through hole, and the through section passes through the through hole at one end away from the deformable section.

2. The sound unit according to claim 1, characterized in that The through hole is arranged in the central area of the central magnetic structure.

3. The sound unit according to claim 1, wherein: The top surface of the central magnetic structure is provided with an avoidance groove for avoiding the fixed section.

4. The sound unit according to claim 1, characterized in that The fixed section is fixedly connected to the diaphragm assembly via a first colloid.

5. The sound unit according to claim 4, characterized in that: The first colloid is arranged close to the connection between the fixed section and the deformable section.

6. The sound unit according to claim 4, characterized in that: The first colloid is disposed corresponding to the through hole.

7. The sound unit according to claim 4, characterized in that: The first colloid covers the entire area of the fixing section.

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

9. The sound generating unit according to claim 1, wherein: There are multiple leads, and the multiple leads are axially symmetrical or centrally symmetrical.

10. The sound unit according to claim 1, characterized in that: It also includes a second colloid, and a partial area of the through-section is fixedly connected to the yoke through the second colloid.

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