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, the elevated part is connected with the voice coil, and the upper connecting part is also connected with an edge folding part; the colloid comprises a first part and a second part which are connected with each other, and the first part is located between the upper connecting part and the vibrating diaphragm assembly and is in contact with the upper connecting part and the vibrating diaphragm assembly respectively; and the second part is positioned on one side, far away from the upper connecting part, of the edge folding part and is respectively connected with the edge folding part and the vibrating diaphragm assembly. In the sound production unit, the framework is provided with the edge folding part, and the partial region of the colloid connecting the diaphragm assembly and the framework is located on the side, far away from the upper connecting part, of the edge folding part, so that the gluing area of the framework and the diaphragm assembly is increased, the stability of connection between the framework and the diaphragm assembly is effectively improved, and the risk of separation between the framework and the diaphragm assembly is reduced; and the structure of the sounding unit is more stable.

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, and the upper connecting part is also connected to a folded edge part;

[0009] The colloid includes a first part and a second part connected together. 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 on the side of the folded edge away from the upper connecting part and connects the folded edge and the diaphragm assembly respectively.

[0010] In one embodiment, the connection between the raised portion and the upper connecting portion is located at the inner edge of the upper connecting portion, and the connection between the folded edge portion and the upper connecting portion is located at the outer edge of the upper connecting portion.

[0011] In one embodiment, the elevated section includes a vertical section and a horizontal section, the vertical section connecting the horizontal section and the upper connecting section, and the horizontal section being fixedly connected to the voice coil.

[0012] In one embodiment, the colloid further includes a third portion connected to the second portion, the third portion being located on the side of the vertical portion away from the upper connecting portion, and the third portion contacting the diaphragm assembly and the vertical portion respectively.

[0013] In one embodiment, the skeleton is generally rectangular, and the folded edge is located at the corner of the skeleton.

[0014] In one embodiment, the skeleton is a stamped structural component formed by integral stamping.

[0015] In one embodiment, the upper connecting portion includes a connected rectangular frame portion and a protrusion portion, the protrusion portion being connected to the folded edge portion.

[0016] In one embodiment, the skeleton further includes an extension, the folded edge is connected to the extension, and the second portion contacts the extension.

[0017] In one embodiment, the extension is parallel to the upper connecting portion.

[0018] The beneficial effects of this invention are as follows: In this sound-generating unit, the frame has a folded edge, and the portion of the adhesive connecting the diaphragm assembly and the frame is located on the side of the folded edge away from the upper connecting part. This increases the adhesive area 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-generating unit structure more stable. In addition, the presence of the folded edge can also improve the structural strength of the frame itself, improve frame deformation, and enhance the high-frequency sensitivity of the sound-generating 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 an exploded view of the sound-generating unit according to Embodiment 1 of this utility model;

[0021] Figure 2 This is a cross-sectional view of the sound-generating unit according to Embodiment 1 of this utility model;

[0022] Figure 3 This is a cross-sectional view of a partial area of ​​the sound-generating unit according to Embodiment 1 of this utility model;

[0023] Figure 4 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 5 This is a cross-sectional view of the sound-generating unit according to Embodiment 2 of this utility model;

[0025] Figure 6This is a cross-sectional view of a partial area of ​​the sound-generating unit in Embodiment 2 of this utility model;

[0026] Figure 7 This is a schematic diagram of a portion of the sound-generating unit in Embodiment 2 of this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Pot stand;

[0029] 2. Magnetic circuit assembly;

[0030] 3. Diaphragm assembly;

[0031] 4. Voice coil;

[0032] 5. Frame; 51. Upper connecting part; 511. Rectangular frame part; 512. Protruding part; 52. Elevated part; 521. Vertical part; 522. Horizontal part; 53. Folded edge part; 54. Extension part;

[0033] 6. Colloid; 61. Part 1; 62. Part 2; 63. Part 3;

[0034] 7. Support components. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] Example 1

[0042] 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 magnetic circuit assembly 2 is connected to the frame 1 and 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 also connected to a folded edge part 53. The colloid 6 includes a connected first part 61 and a connected second part 62. The first part 61 is located between the upper connecting part 51 and the diaphragm assembly 3 and contacts the upper connecting part 51 and the diaphragm assembly 3 respectively. The second part 62 is located on the side of the folded edge part 53 away from the upper connecting part 51 and connects the folded edge part 53 and the diaphragm assembly 3 respectively.

[0043] The diaphragm assembly 3 is connected to the frame 1. In this embodiment, the diaphragm assembly 3 includes a connected diaphragm and a dome, and the frame 5 is bonded to the dome by the adhesive 6. In other embodiments, the frame 5 can also be bonded to the diaphragm by the adhesive 6. In this case, the sound-producing unit may not have the dome.

[0044] In one or more embodiments, the connection between the raised portion 52 and the upper connecting portion 51 is located at the inner edge of the upper connecting portion 51, and the connection between the folded edge portion 53 and the upper connecting portion 51 is located at the outer edge of the upper connecting portion 51.

[0045] Specifically, the raised section 52 includes a vertical section 521 and a horizontal section 522. The vertical section 521 connects the horizontal section 522 to the upper connecting section 51, and the horizontal section 522 is fixedly connected to the voice coil 4.

[0046] To further improve the stability of the connection between the frame 5 and the diaphragm assembly 3, the colloid 6 also includes a third part 63 connected to the second part 62. The third part 63 is located on the side of the vertical part 521 away from the upper connecting part 51. The third part 63 contacts the diaphragm assembly 3 and the vertical part 521 respectively. This can increase the bonding area between the diaphragm assembly 3 and the frame 5 to a greater extent, thereby improving the bonding force between the diaphragm assembly 3 and the frame 5.

[0047] The skeleton 5 is generally rectangular, and the folded edge 53 is located at the corner of the skeleton 5. In order to balance the force on the skeleton 5 and avoid the low force-bearing capacity of some corners of the skeleton 5, it is preferable that each corner of the skeleton 5 has a corresponding folded edge 53.

[0048] The corner of the upper connecting part 51 is generally an arc corner. In order to facilitate the setting of the folded edge part 53 and increase the bonding area between the frame 5 and the diaphragm assembly 3, the upper connecting part 51 includes a connected rectangular frame part 511 and a protrusion part 512, and the protrusion part 512 is connected to the folded edge part 53.

[0049] The frame 5 is a stamped structural component formed by one-piece stamping.

[0050] In one or more embodiments, the sound-generating unit further includes a support component 7, which connects the frame 1 and the voice coil 4. The support component 7 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.

[0051] Example 2

[0052] Please refer to Figures 5 to 7 The second embodiment of this utility model is a further improvement on the first embodiment. The difference from the first embodiment is that the skeleton 5 further includes an extension 54, the folded edge 53 is connected to the extension 54, and the second part 62 of the colloid 6 contacts the extension 54. That is to say, the diaphragm assembly 3, the folded edge 53 and the extension 54 constitute a receiving chamber for accommodating the second part 62.

[0053] Optionally, the extension 54 is parallel to the upper connecting part 51. Of course, it is also possible for the extension 54 and the folded edge 53 to form an acute angle structure or an obtuse angle structure, which can be selected as needed.

[0054] 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, and the upper connecting portion further connecting a flange portion; a glue body comprising a connected first portion and a second portion, the first portion being located between the upper connecting portion and the diaphragm assembly and respectively contacting the upper connecting portion and the diaphragm assembly, and the second portion being located on a side of the flange portion away from the upper connecting portion and respectively connecting the flange portion and the diaphragm assembly.

2. The sound producing unit of claim 1, wherein: The connection between the heightening portion and the upper connecting portion is located at an inner edge of the upper connecting portion, and the connection between the flange portion and the upper connecting portion is located at an outer edge of the upper connecting portion.

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

4. The sound producing unit of claim 3, wherein: The glue body further comprises a third portion connected with the second portion, the third portion being located on a side of the vertical portion away from the upper connecting portion, and the third portion respectively contacting the diaphragm assembly and the vertical portion.

5. The sound producing unit of claim 1, wherein: The skeleton as a whole has a rectangular frame shape, and the flange portion is located at a corner of the skeleton.

6. The sound producing unit of claim 1, wherein: The skeleton is a stamping structure formed by one-piece stamping.

7. The sound producing unit of claim 1, wherein: The upper connecting portion comprises a connected rectangular frame portion and a protruding portion, and the protruding portion connects the flange portion.

8. The sound producing unit of claim 1, wherein: The skeleton further comprises an extension portion, the flange portion connects the extension portion, and the second portion contacts the extension portion.

9. The sound producing unit of claim 8, wherein: The extension portion is parallel to the upper connecting portion.

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