Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a voice coil, a framework and a colloid, and the top of the voice coil is provided with an embedded groove; the framework comprises a supporting ring and an extending ring which are connected, the edge of the supporting ring is bent downwards and extends to form the extending ring, and the extending ring extends into the embedding groove; and the inner wall surface, the outer wall surface and the bottom surface of the extension ring are connected with the inner surface of the embedding groove through the colloid. In the sound production unit, the framework is provided with the extension ring embedded in the voice coil, at least the bottom of the extension ring is completely located in the voice coil and is bonded with the voice coil, and compared with a mode of bonding and fixing the framework and the top plane of the voice coil, the bonding area of the extension ring and the voice coil is greatly increased, so that the stability of connection between the framework and the voice coil is greatly improved; the ring falling risk is greatly reduced, and the structural stability of the sounding unit is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic converters, in particular to a sound generating unit. Background Art

[0002] As a common electroacoustic transducer device that converts electrical energy into sound energy, the sound unit plays an indispensable role in the sound amplification system.

[0003] In pursuit of higher performance, some sound units are equipped with a skeleton. The skeleton can increase the area where the voice coil can be inserted into the magnetic gap. However, in existing sound units, the bonding area between the skeleton and the voice coil is small, which makes it easy for debonding to occur, and it is also easy for glue overflow to occur. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sound-generating unit with a frame and a voice coil bonded stably.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a sound unit comprising:

[0006] A voice coil, wherein the top of the voice coil is provided with an embedding groove;

[0007] A frame, the frame comprising a supporting ring and an extension ring connected to each other, the edge of the supporting ring being bent and extended downward to form the extension ring, and the extension ring extending into the embedding groove;

[0008] colloid, the inner wall surface, outer wall surface and bottom surface of the extension ring are connected to the inner surface of the embedding groove through the colloid.

[0009] Furthermore, a glue-containing gap is formed between the support ring and the top surface of the voice coil, and the glue-containing gap includes a first gap located on the inner side of the extension ring and a second gap located on the outer side of the extension ring, and the first gap and the second gap are both connected to the embedding groove.

[0010] Furthermore, the skeleton is an integral structure formed by integral processing.

[0011] Furthermore, the support ring is vertically connected to the extension ring.

[0012] Furthermore, the connection between the extension ring and the support ring is located at the inner edge of the support ring.

[0013] Furthermore, the connection between the extension ring and the support ring is located at the outer edge of the support ring.

[0014] Furthermore, it also includes a diaphragm assembly, the support ring is connected to the diaphragm assembly, the diaphragm assembly includes a sound membrane and a dome, the sound membrane includes an inner fixed part, a folding ring part and an outer fixed part connected in sequence from the inside to the outside, a window is provided in the central area of the inner fixed part, and the dome is provided on the inner fixed part and closes the window.

[0015] Furthermore, the support ring is located in the window and is fixedly connected to the spherical top.

[0016] Furthermore, there is a gap between the inner fixing portion and the support ring.

[0017] Furthermore, the support ring is connected to the inner fixing part.

[0018] The beneficial effect of the present invention is that: in the sound unit, the skeleton has an extension ring embedded in the voice coil, and at least the bottom of the extension ring is completely located inside the voice coil and bonded to the voice coil. Compared with the method of fixing the skeleton and the top surface of the voice coil by flat bonding, the bonding area between the extension ring and the voice coil is greatly increased, thereby greatly improving the stability of the connection between the skeleton and the voice coil, greatly reducing the risk of the coil falling off, and ensuring the structural stability of the sound unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the sound unit of the first embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of a local area of the sound unit of the first embodiment of the present invention.

[0021] Description of labels:

[0022] 1. Basin rack;

[0023] 2. Magnetic circuit components;

[0024] 3. Diaphragm assembly; 31. Sound membrane; 32. Dome;

[0025] 4. Frame; 41. Support ring; 42. Extension ring;

[0026] 5. Voice coil;

[0027] 6. Colloid;

[0028] 7. Glue gap. DETAILED DESCRIPTION

[0029] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0030] Please refer to Figure 1 and Figure 2 , sound unit, including:

[0031] A voice coil 5, wherein the top of the voice coil 5 is provided with an embedding groove;

[0032] A skeleton 4, comprising a supporting ring 41 and an extension ring 42 connected to each other, wherein the edge of the supporting ring 41 is bent and extended downward to form the extension ring 42, and the extension ring 42 extends into the embedding groove;

[0033] Colloid 6, the inner wall surface, outer wall surface and bottom surface of the extension ring 42 are connected to the inner surface of the embedding groove through the colloid 6.

[0034] From the above description, it can be seen that the beneficial effect of the present invention is that: in the present sound unit, the skeleton 4 has an extension ring 42 embedded in the voice coil 5, and at least the bottom of the extension ring 42 is completely located inside the voice coil 5 and is bonded to the voice coil 5. Compared with the method of fixing the skeleton 4 and the top surface of the voice coil 5 by flat bonding, the bonding area between the extension ring 42 and the voice coil 5 is greatly increased, thereby greatly improving the stability of the connection between the skeleton 4 and the voice coil 5, greatly reducing the risk of the coil falling, and ensuring the structural stability of the sound unit.

[0035] Furthermore, a glue-containing gap 7 is formed between the support ring 41 and the top surface of the voice coil 5, and the glue-containing gap 7 includes a first gap located on the inner side of the extension ring 42 and a second gap located on the outer side of the extension ring 42, and the first gap and the second gap are both connected to the embedding groove.

[0036] As can be seen from the above description, the lowering height of the voice coil 5 is provided by the extension ring 42. Therefore, the thickness of the support ring 41 does not need to be set to be relatively thick, which is not only conducive to reducing the production consumables of the skeleton 4 and saving raw material costs, but also can reduce the overall weight of the vibration system of the sound unit and improve the acoustic performance of the sound unit; in addition, the glue-containing gap 7 can accommodate the overflowing glue from the embedding groove, and prevent the overflowing glue from exceeding the inner and outer wall surfaces of the voice coil 5 so that when the sound unit is working, the overflowing glue collides with the magnetic circuit component 2 of the sound unit and produces noise.

[0037] Furthermore, the skeleton 4 is an integral structure formed by integral processing.

[0038] It can be seen from the above description that the frame 4 has a simple structure and is easy to process and manufacture.

[0039] Furthermore, the support ring 41 is vertically connected to the extension ring 42 .

[0040] As can be seen from the above description, the supporting surface of the supporting ring 41 is perpendicular to the extension ring 42 , which can facilitate the insertion of the extension ring 42 into the embedding groove of the voice coil 5 .

[0041] Furthermore, the connection between the extension ring 42 and the support ring 41 is located at the inner edge of the support ring 41 .

[0042] Furthermore, the connection between the extension ring 42 and the support ring 41 is located at the outer edge of the support ring 41 .

[0043] As can be seen from the above description, the specific structure of the skeleton 4 can be selected as needed, which is conducive to enriching the diversity of the sound-emitting units.

[0044] Furthermore, it also includes a diaphragm assembly 3, the support ring 41 is connected to the diaphragm assembly 3, the diaphragm assembly 3 includes a sound membrane 31 and a dome 32, the sound membrane 31 includes an inner fixed part, a folding ring part and an outer fixed part connected in sequence from the inside to the outside, a window is provided in the central area of the inner fixed part, and the dome 32 is provided on the inner fixed part and closes the window.

[0045] It can be seen from the above description that the window setting can reduce the overall weight of the vibration system of the sound unit, and the dome 32 can increase the rigidity of the vibration system, thereby improving the acoustic performance of the sound unit.

[0046] Furthermore, the support ring 41 is located in the window and is fixedly connected to the spherical top 32 .

[0047] Furthermore, there is a gap between the inner fixing portion and the support ring 41 .

[0048] Furthermore, the support ring 41 is connected to the inner fixing portion.

[0049] As can be seen from the above description, there are many options for the specific structure of the vibration system of the sound unit.

[0050] Example 1

[0051] Please refer to Figure 1 and Figure 2 , Embodiment 1 of the present invention is: a sound unit, including a basin frame 1, a magnetic circuit assembly 2, a diaphragm assembly 3, a skeleton 4, a voice coil 5 and a colloid 6, the diaphragm assembly 3 and the magnetic circuit assembly 2 are respectively connected to the basin frame 1, the magnetic circuit assembly 2 has a magnetic gap for the movement of the voice coil 5, the top of the voice coil 5 is provided with an embedding groove, the skeleton 4 includes a connected support ring 41 and an extension ring 42, the support ring 41 is connected to the diaphragm assembly 3, the edge of the support ring 41 is bent downward and extended to form the extension ring 42, the extension ring 42 extends into the embedding groove, and the inner wall surface, outer wall surface and bottom surface of the extension ring 42 are all connected to the inner surface of the embedding groove through the colloid 6.

[0052] A glue-containing gap 7 is formed between the support ring 41 and the top surface of the voice coil 5. The glue-containing gap 7 includes a first gap located on the inner side of the extension ring 42 and a second gap located on the outer side of the extension ring 42. The first gap and the second gap are both connected to the embedding groove. When the colloid 6 in the embedding groove overflows, it will stay on the top surface of the voice coil 5, thereby improving the glue overflow phenomenon.

[0053] In this embodiment, the support ring 41 is vertically connected to the extension ring 42, so that the extension ring 42 can be smoothly inserted into the embedding groove.

[0054] The skeleton 4 is an integral structure formed by integral processing. The material of the skeleton 4 can be metal, plastic, etc. When the material of the skeleton 4 is metal, the skeleton 4 can be an integral structure formed by stamping and stretching. When the material of the skeleton 4 is plastic, the skeleton 4 can be an integral structure formed by injection molding.

[0055] In this embodiment, the connection between the extension ring 42 and the support ring 41 is located at the inner edge of the support ring 41. In other embodiments, the connection between the extension ring 42 and the support ring 41 may also be located at the outer edge of the support ring 41. In some embodiments, the extension ring 42 may also be a convex structure stamped and formed from a portion of the support ring 41, or the cross-section of the skeleton 4 may be T-shaped.

[0056] The diaphragm assembly 3 includes a diaphragm 31 and a dome 32. The diaphragm 31 includes an inner fixing portion, a folded ring portion, and an outer fixing portion, which are sequentially connected from the inside out. A window is provided in the central area of the inner fixing portion, and the dome 32 is provided on the inner fixing portion and closes the window. In this embodiment, the support ring 41 is located in the window and is fixedly connected to the dome 32. Optionally, a gap is provided between the inner fixing portion and the support ring 41. In other embodiments, the support ring 41 may also be connected to the inner fixing portion.

[0057] In order to take into account both the stability of the connection between the bobbin 4 and the voice coil 5 and the number of turns of the voice coil 5 itself, it is preferred that the embedding groove extends to a quarter to a half of the height of the voice coil 5 .

[0058] In summary, the sound unit provided by the present invention has a bobbin with an extension ring embedded in the voice coil. At least the bottom of the extension ring is completely located within the voice coil and bonded to it. Compared to methods where the bobbin is bonded to the top surface of the voice coil, the bonding area between the extension ring and the voice coil is significantly increased, thereby significantly improving the stability of the connection between the bobbin and the voice coil, greatly reducing the risk of coil dropout and ensuring the structural stability of the sound unit. A gap for adhesive is formed between the top surface of the voice coil and the bobbin's support ring, thereby improving adhesive overflow in the sound unit and enhancing the sound quality of the sound unit.

[0059] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A sound unit, characterized in that: include A voice coil, wherein the top of the voice coil is provided with an embedding groove; A frame, the frame comprising a supporting ring and an extension ring connected to each other, the edge of the supporting ring being bent and extended downward to form the extension ring, and the extension ring extending into the embedding groove; colloid, the inner wall surface, outer wall surface and bottom surface of the extension ring are connected to the inner surface of the embedding groove through the colloid.

2. The sound unit according to claim 1, characterized in that A glue-containing gap is formed between the support ring and the top surface of the voice coil, and the glue-containing gap includes a first gap located on the inner side of the extension ring and a second gap located on the outer side of the extension ring. The first gap and the second gap are both connected to the embedding groove.

3. The sound unit according to claim 1, wherein: The frame is an integral structure formed by integral processing.

4. The sound unit according to claim 1, characterized in that The supporting ring is vertically connected to the extension ring.

5. The sound unit according to claim 1, characterized in that: The connection between the extension ring and the support ring is located at the inner edge of the support ring.

6. The sound unit according to claim 1, characterized in that The connection between the extension ring and the support ring is located at the outer edge of the support ring.

7. The sound unit according to claim 1, characterized in that It also includes a diaphragm assembly, the support ring is connected to the diaphragm assembly, the diaphragm assembly includes a sound membrane and a dome, the sound membrane includes an inner fixed part, a folding ring part and an outer fixed part connected in sequence from the inside to the outside, a window is provided in the central area of the inner fixed part, and the dome is provided on the inner fixed part and closes the window.

8. The sound unit according to claim 7, characterized in that: The support ring is located in the window and is fixedly connected to the spherical top.

9. The sound unit according to claim 8, characterized in that: A gap is formed between the inner fixing portion and the supporting ring.

10. The sound unit according to claim 7, characterized in that: The supporting ring is connected to the inner fixing portion.

Images