Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a voice coil and a framework, the voice coil comprises a body and a lead, and one end of the lead is connected with the inner side of the body; the framework comprises an upper connecting part, an elevated part and a lower connecting part, the bottom surface of the lower connecting part is bonded and fixed with the body, the lower connecting part is provided with a boss protruding towards the direction far away from the voice coil, and a wire passing port is formed between the bottom surface of the boss and the body. And the other end of the lead wire penetrates to the outer side of the body through the wire passing opening. Compared with the prior art that a notch used for avoiding the lead is formed in the framework, the framework of the sounding unit is provided with the boss, and the wire passing opening for the lead to pass through is formed below the boss, so that the framework has higher structural strength, the deformation risk of the framework is reduced, and the structural stability of the sounding unit is ensured.

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 frame 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] The voice coil leads are soldered to the centering support pads or the frame pads. The voice coil leads need to be led from the inner edge of the voice coil body to the outer edge of the voice coil body to be soldered to the centering support pads or the frame pads. When the voice coil leads cross over the voice coil body from above, the top surface of the voice coil will be uneven. When the voice coil is bonded to the frame, the bonding surface will not be smooth, which will seriously affect the bonding effect, resulting in poor bonding and low reliability. After long-term fatigue use, the voice coil may separate from the frame. At the same time, the distance between the bottom of the voice coil body corresponding to the voice coil leads and the yoke will decrease. When the miniature loudspeaker is working, the bottom of the voice coil body will collide with the yoke, resulting in noise. In severe cases, phenomena such as voice coil detachment or voice coil falling off may occur, affecting the life of the sound unit.

[0004] like Figure 1 As shown, existing technologies, in order to overcome the above-mentioned defects, would choose to set a notch 6 at the position of the lead wire 42 of the voice coil 4 in the frame 5 to avoid the influence of the voice coil lead wire. However, the design of the notch on the frame will reduce the strength of the frame, making the frame very easy to deform, reducing reliability, and possibly causing breakage, thus affecting the life of the sound unit. Utility Model Content

[0005] The technical problem solved by this utility model is to provide a high-performance sound unit with a frame that is not easily deformed.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a sound-generating unit, comprising:

[0007] A voice coil, comprising a body and a lead wire, one end of which is connected to the inside of the body;

[0008] The frame includes an upper connecting part, a raised part and a lower connecting part. The bottom surface of the lower connecting part is bonded and fixed to the body. The lower connecting part has a boss protruding in a direction away from the voice coil. A wire passage is formed between the bottom surface of the boss and the body. The other end of the lead wire passes through the wire passage to the outside of the body.

[0009] In one embodiment, the boss is provided at the corner of the skeleton.

[0010] In one embodiment, the skeleton is generally rectangular, and the skeleton has at least one set of diagonally opposite protrusions.

[0011] In one embodiment, the four corners of the skeleton are respectively provided with the boss.

[0012] In one embodiment, the wire passage is filled with adhesive.

[0013] In one embodiment, the adhesive covers the area of ​​the lead wire located in the wire passage.

[0014] In one embodiment, the distance between the bottom surface of the boss and the top surface of the body is greater than or equal to the wire diameter of the lead wire, and the top surface of the boss is set lower than the top surface of the upper connecting portion.

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

[0016] In one embodiment, the device further includes a frame, a magnetic circuit assembly, and a diaphragm assembly, wherein the frame and the magnetic circuit assembly are respectively connected to the diaphragm assembly, the magnetic circuit assembly has a magnetic gap for the body to move, and the upper connecting portion is connected to the diaphragm assembly.

[0017] In one embodiment, the diaphragm assembly includes a diaphragm and a dome, the diaphragm connecting the frame and the dome, and the upper connecting portion connecting the dome.

[0018] The beneficial effects of this utility model are as follows: Compared with the existing technology of opening a notch on the frame to avoid the lead wire, the frame of this sound unit is provided with a boss and a wire passage is formed below the boss for the lead wire to pass through, which makes the frame have higher structural strength, helps to reduce the risk of frame deformation, and ensures the structural stability 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 A schematic diagram of the internal structure of a sound-generating unit in existing technology;

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

[0023] Figure 4 This is a schematic diagram of the internal structure of the sound-generating unit in Embodiment 1 of this utility model;

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a schematic diagram of the skeleton structure in the sound-generating unit of Embodiment 2 of this utility model;

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

[0027] Explanation of icon numbers:

[0028] 1. Pot stand;

[0029] 2. Magnetic circuit assembly;

[0030] 3. Diaphragm assembly; 31. Diaphragm; 32. Dome;

[0031] 4. Voice coil; 41. Body; 42. Lead wire;

[0032] 5. Frame; 51. Upper connecting part; 52. Elevated part; 53. Lower connecting part; 54. Boss; 55. Cable guide;

[0033] 6. Gap. 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 2 to 5 One 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, and a frame 5. 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 voice coil 4 includes a body 41 and a lead wire 42. One end of the lead wire 42 is connected to the inner side of the body 41. The frame 5 includes an upper connecting part 51, a raised part 52, and a lower connecting part 53. The upper connecting part 51 is connected to the diaphragm assembly 3. The bottom surface of the lower connecting part 53 is bonded and fixed to the body 41. The lower connecting part 53 has a boss 54 protruding away from the voice coil 4. A wire passage 55 is formed between the bottom surface of the boss 54 and the body 41. The other end of the lead wire 42 passes through the wire passage 55 to the outside of the body 41.

[0042] In this embodiment, the skeleton 5 is generally rectangular, and the boss 54 is located at the corner corresponding to the skeleton 5. In other embodiments, the wire passage 55 may be located on either the major axis or the minor axis of the skeleton 5.

[0043] To further improve the structural stability of the sound-generating unit and protect the lead wire 42, and reduce the risk of lead wire 42 breakage, optionally, the wire passage 55 is filled with adhesive, and the adhesive covers the area of ​​the lead wire 42 in the wire passage 55.

[0044] The distance between the bottom surface of the boss 54 and the top surface of the body 41 is greater than or equal to the wire diameter of the lead wire 42, and the top surface of the boss 54 is set lower than the top surface of the upper connecting part 51.

[0045] In actual production, the boss 54 is a stamped structure formed by stamping.

[0046] In this embodiment, the diaphragm assembly 3 includes a diaphragm 31 and a dome 32. The diaphragm 31 connects the frame 1 and the dome 32, and the upper connecting part 51 connects the dome 32.

[0047] Example 2

[0048] Please refer to Figure 6 and Figure 7 The second embodiment of this utility model is a further improvement on the first embodiment. In the first embodiment, the skeleton 5 has only one boss 54, while in this embodiment, the skeleton 5, which is in the shape of a rectangular frame, has at least one set of diagonally opposite bosses 54.

[0049] In a preferred embodiment, the four corners of the frame 5 are respectively provided with the bosses 54. In another product corresponding to this embodiment, the four corners of the frame 5 are respectively provided with the bosses 54. Manufacturing process of the rectangular frame-shaped voice coil 4: 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, thereby reducing its height. In comparison, the corner positions are less affected by the stretching, so the height of the corner positions of the voice coil 4 will be higher than the height of the major axis and minor axis of the voice coil 4. In the sound-producing unit, the corners of the frame 5 correspond to the corners of the voice coil 4. Therefore, it is preferable to provide bosses 54 on the four corners of the frame 5, so that the frame 5 can avoid the corners of the voice coil 4, and avoid the unevenness of the corners of the voice coil 4 affecting the bonding effect, thereby 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. (If the end corners of the voice coil 4 are high, the lower vibration space at the end corners of the voice coil 4 will be insufficient).

[0050] 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: Comprising A voice coil comprising a body and a lead wire, one end of the lead wire being connected to the inner side of the body; A skeleton comprising an upper connecting portion, a raised portion, and a lower connecting portion, the bottom surface of the lower connecting portion being adhesively fixed to the body, the lower connecting portion having a boss protruding away from the voice coil, the bottom surface of the boss and the body forming a wire passing port, the other end of the lead wire passing through the wire passing port to the outside of the body.

2. The sound producing unit of claim 1, wherein: The boss is arranged corresponding to the corner of the skeleton.

3. The sound producing unit of claim 2, wherein: The skeleton as a whole is in the shape of a rectangular frame, and at least one set of diagonal corners of the skeleton is respectively provided with the boss.

4. The sound producing unit of claim 3, wherein: The four corners of the skeleton are respectively provided with the boss.

5. The sound producing unit of claim 1, wherein: The wire passing port is filled with glue liquid.

6. The sound producing unit of claim 5, wherein: The glue liquid covers the area of the lead wire in the wire passing port.

7. The sound producing unit of claim 1, wherein: The distance between the bottom surface of the boss and the top surface of the body is greater than or equal to the wire diameter of the lead wire, and the top surface of the boss is lower than the top surface of the upper connecting portion.

8. The sound producing unit of claim 1, wherein: The boss is a stamping structure.

9. The sound producing unit of claim 1, wherein: Further comprising a basket, a magnetic circuit assembly, and a diaphragm assembly, the basket and the magnetic circuit assembly being respectively connected to the diaphragm assembly, the magnetic circuit assembly having a magnetic gap for the body to move in, and the upper connecting portion being connected to the diaphragm assembly.

10. The sound producing unit of claim 9, wherein: The diaphragm assembly comprises a sound film and a dome, the sound film being connected to the basket and the dome, and the upper connecting portion being connected to the dome.

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