Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a diaphragm assembly, a voice coil, a skeleton and a colloid, the skeleton comprises an upper connecting part and an elevated part which are connected with each other, the elevated part is connected with the voice coil, the upper connecting part is connected with the diaphragm assembly in an adhesive manner, and the upper connecting part is provided with a through hole; the colloid comprises a first part, a second part and a third part which are connected in sequence, the first part is located between the upper connecting part and the diaphragm assembly and makes contact with the upper connecting part and the diaphragm assembly, the second part is located in the through hole, and the third part makes contact with the bottom face of the upper connecting part. The through hole is formed in the upper connecting part of the framework and can accommodate the colloid, and a part of the colloid is located below the upper connecting part and is in contact with the upper connecting part, so that the bonding area of the vibrating diaphragm assembly and the framework is effectively increased, the stability of connection between the framework and the vibrating diaphragm assembly is improved, and the structure of the sound production unit is more stable; in addition, the dead weight of the framework can be reduced due to the existence of the through holes, and the high-frequency sensitivity of the sounding 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 support part connected together. The support part is connected to the voice coil. The upper connecting part is glued to the diaphragm assembly. The upper connecting part is provided with a through hole.

[0009] The colloid comprises a first part, a second part, and a third part connected in sequence. The first part is located between the upper connecting part and the diaphragm assembly and contacts the upper connecting part and the diaphragm assembly respectively. The second part is located inside the through hole, and the third part contacts the bottom surface of the upper connecting part.

[0010] In one embodiment, the upper connecting portion includes a connected rectangular frame portion and an extension portion, and at least a portion of the through hole is located on the extension portion.

[0011] In one embodiment, the entire area of ​​the through hole is located on the extension portion.

[0012] In one embodiment, the number of the epitaxial portions is multiple.

[0013] In one embodiment, the long axis and / or short axis of the rectangular frame are connected to the extension portion.

[0014] In one embodiment, the corner of the rectangular frame is connected to the extension portion.

[0015] In one embodiment, the elevated section includes a vertical section and a horizontal section, the vertical section connecting the upper connecting section and the horizontal section, and the horizontal section being fixedly connected to the voice coil.

[0016] In one embodiment, the third portion contacts one side wall of the vertical portion.

[0017] In one embodiment, the colloid further includes a fourth portion that contacts the other sidewall of the vertical section and the diaphragm assembly.

[0018] In one embodiment, the peripheral wall of the through hole has a straight edge extending away from the diaphragm assembly.

[0019] The beneficial effects of this utility model are as follows: the through hole provided on the upper connecting part of the frame can accommodate the colloid, and a part of the colloid is located below the upper connecting part and in contact with the upper connecting part, which effectively increases the bonding area between the diaphragm assembly and the frame, thereby making the frame and the diaphragm assembly form a greater bonding force, 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 through hole can also reduce the weight of the frame, which is beneficial to improving the high-frequency sensitivity of the sound unit. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a cross-sectional view of the sound-generating unit according to Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the skeleton in the sound-generating unit of Embodiment 1 of this utility model;

[0023] 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;

[0024] Figure 4 This is a partial cross-sectional view of the sound-generating unit according to Embodiment 1 of this utility model;

[0025] Figure 5 This is a partial cross-sectional view of the sound-generating unit of Embodiment 2 of this utility model.

[0026] Explanation of icon numbers:

[0027] 1. Pot stand;

[0028] 2. Magnetic circuit assembly;

[0029] 3. Diaphragm assembly;

[0030] 4. Voice coil;

[0031] 5. Frame; 51. Upper connecting part; 511. Through hole; 512. Rectangular frame part; 513. Outer extension part; 514. Straight edge; 52. Elevated part; 521. Vertical part; 522. Horizontal part;

[0032] 6. Colloid; 61. Part 1; 62. Part 2; 63. Part 3; 64. Part 4;

[0033] 7. Support components. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Example 1

[0041] Please refer to Figures 1 to 4 The first embodiment 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, a frame 5, and a colloid 6. The diaphragm assembly 3 and the magnetic circuit assembly 2 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 an upper connecting part 51 and a raised part 52 connected together. 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 a through hole 511. The colloid 6 includes a first part 61, a second part 62, and a third part 63 connected in sequence. The first part 61 is located between the upper connecting part 51 and the diaphragm assembly 3 and respectively contacts the upper connecting part 51 and the diaphragm assembly 3. The second part 62 is located in the through hole 511. The third part 63 contacts the bottom surface of the upper connecting part 51.

[0042] The cross-section of the through hole 511 is circular, elliptical, or polygonal.

[0043] 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.

[0044] The upper connecting portion 51 includes a connected rectangular frame portion 512 and an extension portion 513. At least a portion of the through hole 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 through hole 511. In one or more embodiments, the entire area of ​​the through hole 511 is located on the extension portion 513.

[0045] The number of the epitaxial portions 513 is one or more, preferably multiple.

[0046] 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 through hole 511.

[0047] Optionally, the raised section 52 includes a vertical section 521 and a horizontal section 522. The vertical section 521 connects the upper connecting section 51 and the horizontal section 522, and the horizontal section 522 is fixedly connected to the voice coil 4.

[0048] To further improve the structural stability of the sound-generating unit, the third portion 63 contacts one side wall of the vertical portion 521. In some embodiments, the colloid 6 further includes a fourth portion 64, which contacts the other side wall of the vertical portion 521 and the diaphragm assembly 3.

[0049] The sound-generating unit also includes a support component 7, which connects the frame 1 and the voice coil 4. The support component 7 can select the core support plate and / or the secondary diaphragm, and is used to correct the deviation of the voice coil 4.

[0050] Example 2

[0051] Please refer to Figure 5 Embodiment 2 of this utility model is a parallel technical solution to Embodiment 1, but differs in that: the peripheral wall of the through hole 511 has a straight edge 514 extending away from the diaphragm assembly 3. The presence of the straight edge 514 can improve the overall strength of the frame 5, reduce the deformation of the frame 5, and improve the high-frequency sensitivity of the sound unit. In addition, the straight edge 514 can further increase the bonding area between the frame 5 and the diaphragm assembly 3. In this embodiment, the straight edge 514 is generally formed into a ring frame shape, and in this case, the straight edge 514 can be formed by stamping.

[0052] 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 connected to the diaphragm assembly by adhesive, and a through hole being provided on the upper connecting portion; a glue body comprising a first part, a second part and a third part connected in sequence, the first part being located between the upper connecting portion and the diaphragm assembly and contacting the upper connecting portion and the diaphragm assembly respectively, the second part being located in the through hole, and the third part contacting the bottom surface of the upper connecting portion.

2. The sound producing unit of claim 1, wherein: The upper connecting portion comprises a rectangular frame portion and an extension portion connected in sequence, and at least part of the through hole is located on the extension portion.

3. The sound producing unit of claim 2, wherein: All of the through hole is located on the extension portion.

4. The sound producing unit of claim 2, wherein: The number of the extension portion 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 to the extension portion.

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

7. The sound producing unit of claim 1, wherein: The heightening portion comprises a vertical portion and a horizontal portion, the vertical portion connecting the upper connecting portion and the horizontal portion, and the horizontal portion being fixedly connected to the voice coil.

8. The sound producing unit of claim 7, wherein: The third part contacts one side wall of the vertical portion.

9. The sound producing unit of claim 7, wherein: The glue body further comprises a fourth part, the fourth part contacting the other side wall of the vertical portion and the diaphragm assembly.

10. The sound producing unit of claim 1, wherein: The peripheral wall of the through hole has a straight edge extending away from the diaphragm assembly.

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