Vibration assembly and micro speaker

Abstract

The utility model discloses vibration subassembly and micro loudspeaker, vibration subassembly includes rectangular voice coil and middle paste, the middle paste connects rectangular voice coil, the middle paste corresponds rectangular voice coil's at least three angle parts are equipped with angle part positioning convex respectively, each Angle part positioning convex all are located rectangular voice coil's inside, or, each Angle part positioning convex all are located rectangular voice coil's outside. The angle part positioning convex of middle paste at least three form the clamping structure, when rectangular voice coil and middle paste assemble, the clamping structure can limit rectangular voice coil in the preset position, reduce the movement tolerance when rectangular voice coil and middle paste bond, thereby make rectangular voice coil in the position more stable in micro loudspeaker's magnetic gap, improved rectangular voice coil roll vibration, polarization phenomenon, improved the concentricity of micro loudspeaker product, be favorable to improve the sound quality of micro loudspeaker. The angle part positioning convex occupies the small space on the middle paste, will not cause the adverse effect to the structural strength of middle paste.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic converter technology, and in particular to vibration components and miniature loudspeakers. Background Technology

[0002] Miniature speakers are widely used in portable electronic devices such as mobile phones, laptops, and hearing aids. With the rapid development of these portable electronic devices, the quality requirements for the miniature speakers used in them are becoming increasingly stringent. The assembly precision of miniature speaker products is one of the factors affecting the sound quality of miniature speakers.

[0003] In the past, the center mount of miniature loudspeakers was mostly a flat and uniform plane. If the glue application needle was slightly off-center or the tolerance of the positioning fixture fluctuated, it would cause the bonding between the center mount and the voice coil to be off-center, resulting in phenomena such as rubbing and rolling vibration when the miniature loudspeaker was working. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a vibration component with high assembly precision, and a miniature loudspeaker having the vibration component.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a vibration component, including a rectangular voice coil and a center plate, wherein the center plate is connected to the rectangular voice coil, and the center plate is provided with corner positioning protrusions at at least three corners corresponding to the rectangular voice coil, wherein each corner positioning protrusion is located on the inner side of the rectangular voice coil, or each corner positioning protrusion is located on the outer side of the rectangular voice coil.

[0006] Furthermore, the center patch is provided with corner positioning protrusions corresponding to the four corners of the rectangular voice coil.

[0007] Furthermore, the corner positioning protrusion is located on the inner side of the rectangular voice coil, and the corner positioning protrusion abuts against the inner peripheral wall of the rectangular voice coil.

[0008] Furthermore, the corner positioning protrusion is located on the outside of the rectangular voice coil, and the corner positioning protrusion abuts against the outer peripheral wall of the rectangular voice coil.

[0009] Furthermore, the corner positioning protrusion is arc-shaped.

[0010] Furthermore, the corner positioning protrusion includes a first protrusion and a second protrusion that are spaced apart and perpendicular to each other.

[0011] Furthermore, the corner positioning protrusion and the center patch are integrally formed into a single structure.

[0012] Furthermore, the corner positioning protrusion is a solid boss.

[0013] Furthermore, the corner positioning protrusion is a hollow convex hull, which is a stamped structure formed by stamping.

[0014] To solve the above-mentioned technical problems, the present invention also adopts the following technical solution: a miniature loudspeaker, including the above-mentioned vibration component.

[0015] The beneficial effects of this invention are as follows: At least three corner positioning protrusions on the center plate form a locking structure. During assembly of the rectangular voice coil and the center plate, this locking structure can constrain the rectangular voice coil to a preset position, reducing the movement tolerance during bonding. This makes the rectangular voice coil more stable in the magnetic gap of the miniature speaker, improving the rolling vibration and polarization phenomena of the rectangular voice coil, enhancing the concentricity of the miniature speaker product, and thus improving the sound quality of the miniature speaker. Furthermore, the corner positioning protrusions occupy little space on the center plate, ensuring stable locking of the rectangular voice coil without adversely affecting the structural strength of the center plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a miniature loudspeaker;

[0017] Figure 2 A cross-sectional view of a miniature loudspeaker;

[0018] Figure 3 for Figure 2 Enlarged view of detail A in the middle;

[0019] Figure 4 This is a schematic diagram of the vibration assembly.

[0020] Figure 5 This is an exploded view of a portion of the structure of the vibration assembly.

[0021] Label Explanation:

[0022] 1. Pot stand;

[0023] 2. Vibration assembly; 21. Diaphragm; 211. Inner fixing part; 212. Hoop part; 213. Outer fixing part; 22. Center mount; 221. Corner positioning protrusion; 23. Rectangular voice coil;

[0024] 3. Magnetic circuit assembly; 31. Yoke; 32. Central magnetic component; 33. Side magnetic component. Detailed Implementation

[0025] 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.

[0026] Please refer to Figures 1 to 5The vibration component 2 includes a rectangular voice coil 23 and a center mount 22. The center mount 22 is connected to the rectangular voice coil 23. The center mount 22 has corner positioning protrusions 221 at least three corners of the rectangular voice coil 23. Each corner positioning protrusion 221 is located on the inner side of the rectangular voice coil 23, or each corner positioning protrusion 221 is located on the outer side of the rectangular voice coil 23.

[0027] As can be seen from the above description, the beneficial effects of this utility model are as follows: At least three corner positioning protrusions 221 on the center mount 22 form a locking structure. When the rectangular voice coil 23 is assembled with the center mount 22, the locking structure can restrict the rectangular voice coil 23 to a preset position, reducing the movement tolerance when the rectangular voice coil 23 is bonded to the center mount 22. This makes the position of the rectangular voice coil 23 more stable in the magnetic gap of the miniature speaker, improving the rolling vibration and polarization phenomena of the rectangular voice coil 23, enhancing the concentricity of the miniature speaker product, and thus improving the sound quality of the miniature speaker. Furthermore, the corner positioning protrusions 221 occupy little space on the center mount 22, ensuring that the corner positioning protrusions 221 can stably lock the rectangular voice coil 23 without adversely affecting the structural strength of the center mount 22.

[0028] Furthermore, the center patch 22 is provided with corner positioning protrusions 221 corresponding to the four corners of the rectangular voice coil 23.

[0029] As can be seen from the above description, the corner positioning protrusions 221 at the four corners of the center patch 22 can better position the rectangular voice coil 23, which is conducive to improving the assembly accuracy of the vibration component 2 to a greater extent. At the same time, it can keep the center of gravity of the center patch 22 in the center, which is conducive to better improving the polarization, rolling vibration, and rubbing phenomena of the rectangular voice coil 23 in the miniature loudspeaker.

[0030] Furthermore, the corner positioning protrusion 221 is located inside the rectangular voice coil 23, and the corner positioning protrusion 221 abuts against the inner peripheral wall of the rectangular voice coil 23.

[0031] Furthermore, the corner positioning protrusion 221 is located on the outside of the rectangular voice coil 23, and the corner positioning protrusion 221 abuts against the outer peripheral wall of the rectangular voice coil 23.

[0032] As can be seen from the above description, the relative positional relationship between the corner positioning protrusion 221 and the rectangular voice coil 23 can be selected as needed.

[0033] Furthermore, the corner positioning protrusion 221 is arc-shaped.

[0034] Furthermore, the corner positioning protrusion 221 includes a first protrusion and a second protrusion that are spaced apart and perpendicular to each other.

[0035] As can be seen from the above description, the specific structure of the corner positioning protrusion 221 can be selected and set as needed.

[0036] Furthermore, the corner positioning protrusion 221 and the center patch 22 are integrally formed into a single structure.

[0037] As can be seen from the above description, the corner positioning protrusion 221 and the center sticker 22 are integrally formed, which facilitates the processing and manufacturing of the center sticker 22 and helps to control the assembly cost of the miniature speaker.

[0038] Furthermore, the corner positioning protrusion 221 is a solid boss.

[0039] Furthermore, the corner positioning protrusion 221 is a hollow convex hull, which is a stamped structure formed by stamping.

[0040] As can be seen from the above description, the corner positioning protrusion 221 is formed by stamping, which facilitates the processing and manufacturing of the center patch 22.

[0041] To solve the above-mentioned technical problems, the present invention also adopts the following technical solution: a miniature loudspeaker, including the above-mentioned vibration component 2.

[0042] As can be seen from the above description, this miniature loudspeaker has high assembly precision and good sound quality.

[0043] Please refer to Figures 1 to 5 One embodiment of this utility model is a miniature loudspeaker, including a frame 1 and a vibration assembly 2 and a magnetic circuit assembly 3 respectively connected to the frame 1. The magnetic circuit assembly 3 includes a yoke 31 and a central magnetic component 32 and a side magnetic component 33 respectively disposed on the yoke 31. A magnetic gap is formed between the central magnetic component 32 and the side magnetic component 33. 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 33 includes a side washer and a side magnet located below the side washer. The side magnet connects the side washer and the yoke 31. The side washer is connected to the frame 1. In some embodiments, the side washer and the frame 1 are integrally formed.

[0044] The vibrating assembly 2 includes a diaphragm 21, a center patch 22, and a rectangular voice coil 23. The diaphragm 21 includes an inner fixing portion 211, a folded ring portion 212, and an outer fixing portion 213 connected sequentially from the inside to the outside. The center patch 22 is connected to the inner fixing portion 211, the frame 1 is connected to the outer fixing portion 213, and the center patch 22 is connected to the rectangular voice coil 23. The center patch 22 has corner positioning protrusions 221 at least three corners corresponding to the rectangular voice coil 23. Each corner positioning protrusion 221 is located on the inner side of the rectangular voice coil 23, or each corner positioning protrusion 221 is located on the outer side of the rectangular voice coil 23. In some embodiments, the rectangular voice coil 23 is bonded and fixed to the center patch 22.

[0045] In a preferred embodiment, the center patch 22 is provided with corner positioning protrusions 221 corresponding to the four corners of the rectangular voice coil 23.

[0046] In some embodiments, the corner positioning protrusion 221 is located inside the rectangular voice coil 23, and the corner positioning protrusion 221 abuts against the inner peripheral wall of the rectangular voice coil 23. In this embodiment, the corner positioning protrusion 221 is located outside the rectangular voice coil 23, and the corner positioning protrusion 221 abuts against the outer peripheral wall of the rectangular voice coil 23.

[0047] Optionally, the corner positioning protrusion 221 is arc-shaped. In other embodiments, the corner positioning protrusion 221 includes a first protrusion and a second protrusion spaced apart and perpendicular to each other, the first protrusion corresponding to the long side of the rectangular voice coil 23, and the second protrusion corresponding to the short side of the rectangular voice coil 23.

[0048] In other embodiments, the corner positioning protrusion 221 may be fixed to the center patch 22 by means of adhesive or other methods. However, in order to facilitate processing and further improve the positional accuracy of the rectangular voice coil 23 on the center patch 22, it is preferable that the corner positioning protrusion 221 and the center patch 22 are integrally formed into a single structure.

[0049] At this time, the corner positioning protrusion 221 can be either a solid boss or a hollow protrusion. When the corner positioning protrusion 221 is a hollow protrusion, the hollow protrusion is a stamped structure formed by stamping.

[0050] 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 vibration assembly, characterized in that, include Rectangular voice coil; The center sticker is connected to the rectangular voice coil. The center sticker has corner positioning protrusions at at least three corners corresponding to the rectangular voice coil. Each corner positioning protrusion is located on the inner side of the rectangular voice coil, or each corner positioning protrusion is located on the outer side of the rectangular voice coil.

2. The vibration assembly according to claim 1, characterized in that, The center patch is provided with corner positioning protrusions at the four corners corresponding to the rectangular voice coil.

3. The vibration assembly according to claim 1, characterized in that, The corner positioning protrusion is located on the inside of the rectangular voice coil, and the corner positioning protrusion abuts against the inner peripheral wall of the rectangular voice coil.

4. The vibration assembly according to claim 1, characterized in that, The corner positioning protrusion is located on the outside of the rectangular voice coil, and the corner positioning protrusion abuts against the outer peripheral wall of the rectangular voice coil.

5. The vibration assembly according to claim 1, characterized in that, The corner positioning protrusion is arc-shaped.

6. The vibration assembly according to claim 1, characterized in that, The corner positioning protrusions include a first protrusion and a second protrusion that are spaced apart and perpendicular to each other.

7. The vibration assembly according to claim 1, characterized in that, The corner positioning protrusion and the center patch are integrally formed into a single structure.

8. The vibration assembly according to claim 7, characterized in that, The corner positioning protrusion is a solid boss.

9. The vibration assembly according to claim 7, characterized in that, The corner positioning protrusion is a hollow convex hull, which is a stamped structure formed by stamping.

10. A miniature loudspeaker, characterized in that, Includes the vibration component as described in any one of claims 1-9.

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