Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a diaphragm assembly, a voice coil and a skeleton, the skeleton comprises an upper connecting part and an elevated part which are connected, the elevated part is connected with the voice coil, the upper connecting part is connected with the diaphragm assembly in a gluing manner, and the upper connecting part is provided with a glue accommodating pit. The glue containing pit arranged on the upper connecting part of the framework not only can increase the bonding area of the diaphragm assembly and the framework, but also can contain the glue, so that the framework and the diaphragm assembly form larger bonding force, the stability of connection between the framework and the diaphragm assembly is effectively improved, the risk of separation between the framework and the diaphragm assembly is reduced, and the service life of the diaphragm assembly is prolonged. The structure of the sounding unit is more stable; in addition, due to the existence of the glue containing pits, the structural strength of the framework can be improved, the deformation of the framework is improved, and the high-frequency sensitivity of the sound production unit is improved.

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] Typically, to ensure that the voice coil is located within a magnetic gap with a relatively dense magnetic field density, a skeleton is installed between the voice coil and the dome to adjust the position of the voice coil within the magnetic gap and improve the performance of the sound unit, under the requirement of large amplitude.

[0003] However, due to limitations in the size and weight of the sound unit, the frame is generally designed to be small, and the area of ​​the frame and diaphragm assembly is small, resulting in insufficient bonding strength. During power-on and / or drop reliability tests, separation and detachment are very likely to occur. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a sound generating unit with good structural stability.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sound-generating unit, comprising:

[0006] Diaphragm assembly;

[0007] Voice coil;

[0008] The frame includes an upper connecting part and a raised part connected together. The raised part is connected to the voice coil. The upper connecting part is glued to the diaphragm assembly. The upper connecting part is provided with adhesive-accepting pits.

[0009] In one embodiment, the upper connecting portion includes a connected rectangular frame portion and an extension portion, and at least a portion of the adhesive recess is located on the extension portion.

[0010] In one embodiment, the entire area of ​​the adhesive recess is located on the epitaxial portion.

[0011] In one embodiment, the number of the epitaxial portions is multiple.

[0012] In one embodiment, the long axis and / or short axis of the rectangular frame are connected to the extension portion.

[0013] In one embodiment, the corner of the rectangular frame is connected to the extension portion.

[0014] In one embodiment, the adhesive recess is a stamped structure formed by stamping.

[0015] In one embodiment, the adhesive recess is a subtractive structure formed by subtractive molding.

[0016] In one embodiment, the adhesive pits are circular, elliptical, or polygonal.

[0017] In one embodiment, the adhesive recess is connected to the outer peripheral wall of the skeleton.

[0018] The beneficial effects of this utility model are as follows: the adhesive-containing pits provided on the upper connecting part of the frame can not only increase the bonding area between the diaphragm assembly and the frame, but also accommodate the adhesive, thereby forming a greater adhesive force between the frame and the diaphragm assembly, effectively improving the stability of the connection between the frame and the diaphragm assembly, reducing the risk of separation between the frame and the diaphragm assembly, and making the sound unit structure more stable; in addition, the presence of the adhesive-containing pits can also improve the structural strength of the frame itself, improve the deformation of the frame, and enhance the high-frequency sensitivity of the sound unit. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the sound-generating unit according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a schematic diagram of the skeleton in the sound-generating unit of Embodiment 1 of this utility model;

[0022] Figure 3 This is a schematic diagram of a portion of the structure of the sound-generating unit in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of a portion of the sound-generating unit in Embodiment 2 of this utility model.

[0024] Explanation of icon numbers:

[0025] 1. Pot stand;

[0026] 2. Magnetic circuit assembly;

[0027] 3. Diaphragm assembly;

[0028] 4. Voice coil;

[0029] 5. Frame; 51. Upper connecting part; 511. Adhesive recess; 512. Rectangular frame part; 513. Outer extension part; 52. Elevated part;

[0030] 6. Support components. Detailed Implementation

[0031] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0032] 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.

[0033] It should be noted that if the embodiments of this utility model involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0035] Furthermore, if the meaning of "and / or" appears throughout the text, it refers to three parallel solutions. For example, "and / or" includes solution 1, solution 2, and solution 3, which simultaneously satisfy the above conditions. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] Example 1

[0038] Please refer to Figures 1 to 3Embodiment 1 of this utility model is as follows: a sound-generating unit, including a frame 1, a magnetic circuit assembly 2, a diaphragm assembly 3, a voice coil 4, and a frame 5. The magnetic circuit assembly 2 and the diaphragm assembly 3 are respectively connected to the frame 1. The magnetic circuit assembly 2 has a magnetic gap for the voice coil 4 to move. The frame 5 includes a connected upper connecting part 51 and a raised part 52. The raised part 52 is connected to the voice coil 4. The upper connecting part 51 is glued to the diaphragm assembly 3. The upper connecting part 51 is provided with adhesive. The recess 511, as is easy to understand, is connected to the top surface of the upper connecting part 51. The inner surface area of ​​the recess 511 is larger than the area of ​​its opening. Therefore, the presence of the recess 511 can increase the bonding area between the upper connecting part 51 and the diaphragm assembly 3. Moreover, the recess 511 can accommodate the adhesive, thereby increasing the amount of adhesive between the frame 5 and the diaphragm assembly 3, and thus improving the bonding force between the frame 5 and the diaphragm assembly 3.

[0039] In this embodiment, the diaphragm assembly 3 includes a connected diaphragm and a dome, and the frame 5 is bonded to the dome; in other embodiments, the frame 5 may also be bonded to the diaphragm, in which case the sound-generating unit may not have the dome.

[0040] The upper connecting portion 51 includes a connected rectangular frame portion 512 and an extension portion 513. At least a portion of the adhesive-receiving recess 511 is located on the extension portion 513. The presence of the extension portion 513 not only increases the bonding area between the upper connecting portion 51 and the diaphragm assembly 3, but also improves the structural stability of the overall frame 5, and provides a location for the adhesive-receiving recess 511. In one or more embodiments, the entire area of ​​the adhesive-receiving recess 511 is located on the extension portion 513.

[0041] To more effectively improve the adhesion between the frame 5 and the diaphragm assembly 3, it is preferable that the number of the extension portions 513 is multiple.

[0042] In a specific product, the long axis and / or short axis of the rectangular frame portion 512 are connected to the extension portion 513. In this embodiment, the extension portion 513 is connected to the corner of the rectangular frame portion 512. As a preferred embodiment, the four corners of the rectangular frame portion 512 are respectively connected to the extension portion 513, and each extension portion 513 is provided with the adhesive recess 511.

[0043] In this embodiment, the adhesive-receiving recess 511 is a stamped structure formed by stamping. In other embodiments, the adhesive-receiving recess 511 can also be a subtractive structure formed by subtractive processing, such as milling.

[0044] The adhesive pit 511 is circular, elliptical, or polygonal.

[0045] In one or more embodiments, the sound-generating unit further includes a support component 6, which connects the frame 1 and the voice coil 4. The support component 6 can be selected from the core support plate and / or the secondary diaphragm, and is used to correct the deviation of the voice coil 4.

[0046] Example 2

[0047] Please refer to Figure 4 The second embodiment of this utility model is a parallel technical solution to the first embodiment. The difference between the two embodiments is that the adhesive-containing pit 511 is connected to the outer peripheral wall of the skeleton 5. In this embodiment, the adhesive-containing pit 511 is connected to the outer peripheral wall of the extension portion 513.

[0048] The above are merely optional embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A sound emitting unit, characterized by: The diaphragm assembly comprises: a diaphragm assembly; a voice coil; a skeleton comprising a connected upper connecting portion and a heightening portion, the heightening portion connecting the voice coil, the upper connecting portion being adhesively connected with the diaphragm assembly, and the upper connecting portion being provided with a glue-containing recess.

2. The sound producing unit of claim 1, wherein: The upper connecting portion comprises a connected rectangular frame portion and an extension portion, and at least part of the glue-containing recess is located on the extension portion.

3. The sound producing unit of claim 2, wherein: All areas of the glue-containing recess are located on the extension portion.

4. The sound producing unit of claim 2, wherein: The number of the extension portions is multiple.

5. The sound producing unit of claim 2, wherein: The long axis side and / or the short axis side of the rectangular frame portion is connected with the extension portion.

6. The sound producing unit of claim 2, wherein: The corner of the rectangular frame portion is connected with the extension portion.

7. The sound producing unit of claim 1, wherein: The glue-containing recess is a stamping structure formed by stamping.

8. The sound producing unit of claim 1, wherein: The glue-containing recess is a subtractive structure formed by subtractive manufacturing.

9. The sound producing unit of claim 1, wherein: The glue-containing recess is circular, elliptical or polygonal.

10. The sound producing unit of claim 1, wherein: The glue-containing recess communicates with the outer peripheral wall of the skeleton.

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