Sound production unit

Abstract

The utility model discloses a sound production unit, which comprises a voice coil and a framework, the framework is provided with a connecting surface used for being bonded with the voice coil, and the connecting surface is provided with a glue containing groove. In the sound production unit, the connecting surface, used for bonding the voice coil, of the framework is provided with the glue containing groove, and the glue containing groove can store glue and is favorable for increasing the bonding area of the voice coil and the framework, so that the bonding strength of the voice coil and the framework is improved, and the structural stability 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, when a sound-generating unit requires large amplitude, in order to ensure that the voice coil is located within a magnetic gap with a relatively dense magnetic field density, the voice coil and diaphragm assembly are indirectly connected through a frame to adjust the position of the voice coil within the magnetic gap, thereby improving the performance of the sound-generating unit.

[0003] However, due to limitations in the size and weight of the sound unit, the frame is generally designed to be small, and the connection area between the frame and the voice coil is relatively small, resulting in insufficient bonding strength. During power-on and / or drop reliability tests, phenomena such as separation and detachment are prone to occur. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a sound generating unit with a stable connection between the voice coil and the frame.

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

[0006] Voice coil;

[0007] The skeleton has a connecting surface for bonding with the voice coil, and the connecting surface is provided with an adhesive groove.

[0008] In one embodiment, there are multiple adhesive reservoirs.

[0009] In one embodiment, the skeleton is generally ring-shaped, and the adhesive groove is provided at the corner of the skeleton.

[0010] In one embodiment, the skeleton is generally ring-shaped, and the long axis and / or short axis of the skeleton are provided with the adhesive groove.

[0011] In one embodiment, the frame includes an upper connecting part, a raised part, and a lower connecting part connected in sequence, the bottom surface of the lower connecting part is the connecting surface, and the top end of the adhesive groove is not connected to the top surface of the lower connecting part.

[0012] In one embodiment, the upper connecting portion is in the shape of a ring frame.

[0013] In one embodiment, the adhesive groove connects the inner wall and the outer wall of the lower connecting portion.

[0014] In one embodiment, the lower connecting portion has a boss that protrudes in a direction away from the voice coil, corresponding to the adhesive groove area.

[0015] In one embodiment, the adhesive groove is a stamped structure formed by stamping.

[0016] The beneficial effects of this utility model are as follows: In the sound-generating unit, the connecting surface of the skeleton used to bond the voice coil has a glue-containing groove. The glue-containing groove can store glue and help increase the bonding area between the voice coil and the skeleton, thereby improving the bonding strength between the voice coil and the skeleton and enhancing the structural stability of the sound-generating unit. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a cross-sectional view of the sound-generating unit according to Embodiment 1 of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the skeleton structure in the sound-generating unit of Embodiment 1 of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the skeleton structure in the sound-generating unit of Embodiment 1 of this utility model. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the skeleton in the sound-generating unit of Embodiment 2 of this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Pot stand;

[0025] 2. Diaphragm assembly;

[0026] 3. Magnetic circuit components;

[0027] 4. Voice coil;

[0028] 5. Frame; 51. Connecting surface; 52. Adhesive groove; 53. Upper connecting part; 54. Elevated part; 55. Lower connecting part; 551. Boss; 56. Long shaft side; 57. Short shaft side. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example 1

[0036] Please refer to Figures 1 to 4One embodiment of this utility model is a sound-generating unit, including a frame 1, a diaphragm assembly 2, a magnetic circuit assembly 3, a voice coil 4, and a skeleton 5. The skeleton 5 has a connecting surface 51 for bonding with the voice coil 4. The connecting surface 51 is connected to the top surface of the voice coil 4, and a glue-receiving groove 52 is provided on the connecting surface 51. The diaphragm assembly 2 connects the skeleton 5 and the frame 1. The magnetic circuit assembly 3 is fixed on the frame 1, and the magnetic circuit assembly 3 has a magnetic gap for the voice coil 4 to move. Optionally, the diaphragm assembly 2 includes a connected diaphragm and a dome, and the skeleton 5 is connected to the dome.

[0037] The number of adhesive grooves 52 is one or more, which are used to balance the bonding force between the voice coil 4 and the frame 5. Preferably, the number of adhesive grooves 52 is multiple.

[0038] In this embodiment, the skeleton 5 is generally ring-shaped, and the adhesive groove 52 is provided at the corners of the skeleton 5. Specifically, the four corners of the skeleton 5 are respectively provided with the adhesive groove 52. The manufacturing process of the rectangular frame-shaped voice coil 4 is as follows: the voice coil 4 is first wound into a circle, and then stretched into a square. The length and width directions of the voice coil 4 are stretched, thus reducing its height. Relatively speaking, the corner positions are less affected by the stretching, so the height of the corner positions of the voice coil 4 is higher than the height of the major axis 56 and minor axis 57 of the voice coil 4. In the sound-generating unit, the corners of the skeleton 5 correspond to the corners of the voice coil 4. Therefore, it is preferable to place the adhesive groove 52 at the four corners of the skeleton 5, allowing the skeleton 5 to avoid the corners of the voice coil 4, preventing unevenness at the corners of the voice coil 4 from affecting the bonding effect, thus ensuring a more stable bonding. At the same time, it can increase the lower vibration space of the voice coil 4 and improve the vibration margin. (A high end corner of the voice coil 4 will result in insufficient lower vibration space at the end corner position of the voice coil 4).

[0039] Specifically, the frame 5 includes an upper connecting part 53, a supporting part 54, and a lower connecting part 55 connected in sequence. The upper connecting part 53 is generally ring-shaped and connects to the diaphragm assembly 2. The bottom surface of the lower connecting part 55 is the connecting surface 51. The top end of the adhesive receiving groove 52 is not connected to the top surface of the lower connecting part 55. That is to say, in this embodiment, the setting of the adhesive receiving groove 52 will not reduce the structural strength of the frame 5.

[0040] In one or more embodiments, the adhesive groove 52 connects the inner wall and the outer wall of the lower connecting portion 55.

[0041] The lower connecting portion 55 has a protrusion 551 that protrudes away from the voice coil 4 in the region corresponding to the glue groove 52. This ensures that the top of the glue groove 52 is not connected to the top surface of the lower connecting portion 55, and also improves the structural strength of the frame 5 to a certain extent.

[0042] To facilitate the processing and manufacturing of the skeleton 5, the glue-containing groove 52 is a stamped structure formed by stamping.

[0043] Example 2

[0044] Please refer to Figure 5 The second embodiment of this utility model is a parallel technical solution to the first embodiment. The difference between the two embodiments is that although the skeleton 5 is in the shape of a ring frame, the glue-containing groove 52 is provided on the long axis side 56 and the short axis side 57 of the skeleton 5, rather than on the corner of the skeleton 5.

[0045] In one or more embodiments, the skeleton 5 may have only its long axis side 56 corresponding to the adhesive groove 52, or only its short axis side 57 corresponding to the adhesive groove 52, and the specific configuration can be selected according to actual needs.

[0046] 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 voice coil; The skeleton has a connecting surface for bonding with the voice coil, and the connecting surface is provided with a glue containing groove; The skeleton includes an upper connecting part, a height increasing part and a lower connecting part connected in sequence, the bottom surface of the lower connecting part is the connecting surface, the top end of the glue containing groove is not communicated with the top surface of the lower connecting part, and the glue containing groove is communicated with the inner side wall and the outer side wall of the lower connecting part; The lower connecting part corresponds to the area of the glue containing groove and forms a boss protruding away from the voice coil direction, and the glue containing groove is a punching structure formed by punching. The number of the glue containing grooves is multiple.

2. The sound producing unit of claim 1, wherein: The skeleton as a whole is in a ring frame shape, and the glue containing grooves are arranged corresponding to the corner parts of the skeleton.

3. The sound producing unit of claim 2, wherein: The skeleton as a whole is in a ring frame shape, and the long axis side and / or the short axis side of the skeleton is provided with the glue containing groove.

4. The sound producing unit of claim 2, wherein: The upper connecting part is in a ring frame shape.

5. The sound producing unit of claim 1, wherein: ​

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