Sound production unit

Abstract

The utility model discloses a sounding unit, which comprises a basin stand, a voice diaphragm and a front cover, the voice diaphragm comprises an outer fixing part, the outer fixing part is provided with a covered edge, the covered edge is integrally in an annular frame shape, and the inner wall surface of the covered edge is bonded with the basin stand; the front cover covers and presses the voice diaphragm, the front cover comprises a contact ring frame, the contact ring frame is connected with an enclosure bulkhead, the bottom surface of the contact ring frame is bonded with the top surface of the outer fixing part, and the enclosure bulkhead is located at the outer side of the covered edge; at least one first convex ring structure is arranged on the outer side face of the covered edge, a first glue containing area is formed between the first convex ring structure close to the contact ring frame and the contact ring frame, and a second glue containing area is formed below the first convex ring structure far away from the contact ring frame. In the sound production unit provided by the utility model, the sound film and the front cover can form a larger combination area, and more glue can be reserved at the gap between the sound film and the front cover, so that the stability of connection between the sound film and the front cover is effectively improved.

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] At present, in most sound units, the front cover and the sound membrane are connected by gluing. The connection strength between the sound membrane and the front cover depends on the state of the glue. If the gluing state is not good or the amount of glue is insufficient, the sound membrane and the front cover may not be well bonded, which may affect the structural stability of the sound unit. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a sound-generating unit with a sound film and a front cover stably connected.

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

[0006] basin stand;

[0007] A sound diaphragm, the sound diaphragm comprising an external fixing portion, the external fixing portion having an edge, the edge being in the shape of a ring frame as a whole, and the inner wall surface of the edge being bonded to the basin frame;

[0008] A front cover, the front cover is pressed on the sound membrane, the front cover comprises a contact ring frame, the contact ring frame is connected with a surrounding wall, the bottom surface of the contact ring frame is bonded to the top surface of the external fixing part, and the surrounding wall is located outside the edge;

[0009] At least one first convex ring structure is provided on the outer side of the edging, a first adhesive containing area is formed between the first convex ring structure close to the contact ring frame and the contact ring frame, and a second adhesive containing area is formed below the first convex ring structure away from the contact ring frame.

[0010] Furthermore, the first convex ring structure abuts against the surrounding wall.

[0011] Furthermore, there are a plurality of the first convex ring structures, and a third glue containing area is formed between two adjacent first convex ring structures.

[0012] Furthermore, the outer fixing portion and the edge binding are an integral structure formed by integral injection molding.

[0013] Furthermore, the outer wall of the basin frame has a receiving groove for receiving at least a partial area of ​​the edging.

[0014] Furthermore, at least one second convex ring structure is provided on the inner side surface of the edging, a fourth glue containing area is formed between the second convex ring structure close to the outer fixing part and the outer fixing part, and a fifth glue containing area is formed below the second convex ring structure away from the outer fixing part.

[0015] Furthermore, the second convex ring structure abuts against the basin frame.

[0016] Furthermore, there are multiple second convex ring structures, and a sixth glue containing area is formed between two adjacent second convex ring structures.

[0017] Furthermore, in the cross section of the hemming, the first convex ring structure and the second convex ring structure are arranged correspondingly.

[0018] The beneficial effects of the utility model are as follows: the setting of the edging on the external fixing part and the setting of the surrounding wall on the front cover can increase the bonding area between the sound membrane and the front cover, thereby reducing the risk of separation between the front cover and the sound membrane; more importantly, the setting of the first convex ring structure on the edging can form a first glue-containing area and a second glue-containing area between the front cover and the edging, thereby increasing the total amount of glue that can be accommodated in the gap between the front cover and the edging, thereby further improving the stability of the connection between the front cover and the sound membrane, and further reducing the risk of separation between the front cover and the sound membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a part of the structure of the sound-emitting unit of the first embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A magnified view of detail A;

[0021] Figure 3 It is a schematic diagram of the structure of the sound film in the sound unit of the first embodiment of the utility model;

[0022] Figure 4 for Figure 3 Enlarged view of detail B.

[0023] Description of labels:

[0024] 1. front cover; 11. contact ring frame; 12. surrounding wall;

[0025] 2. Basin rack; 21. Receiving tank;

[0026] 3. Sound membrane; 31. Inner fixing part; 32. Folding ring part; 33. Outer fixing part; 34. Edge wrapping; 341. First convex ring structure; 342. Second convex ring structure; 351. First adhesive containing area; 352. Second adhesive containing area; 353. Third adhesive containing area; 354. Fourth adhesive containing area; 355. Fifth adhesive containing area; 356. Sixth adhesive containing area. DETAILED DESCRIPTION

[0027] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0028] Please refer to Figures 1 to 4 , sound unit, including:

[0029] Basin rack 2;

[0030] The sound diaphragm 3 includes an outer fixing portion 33, the outer fixing portion 33 has a rim 34, the rim 34 is in a ring frame shape, and the inner wall surface of the rim 34 is bonded to the basin frame 2;

[0031] A front cover 1, the front cover 1 is pressed on the sound membrane 3, the front cover 1 includes a contact ring frame 11, the contact ring frame 11 is connected to a surrounding wall 12, the bottom surface of the contact ring frame 11 is bonded to the top surface of the external fixing portion 33, and the surrounding wall 12 is located outside the edge 34;

[0032] At least one first convex ring structure 341 is disposed on the outer side of the edge wrap 34 . A first adhesive receiving area 351 is formed between the first convex ring structure 341 close to the contact ring frame 11 and the contact ring frame 11 . A second adhesive receiving area 352 is formed below the first convex ring structure 341 away from the contact ring frame 11 .

[0033] From the above description, it can be seen that the beneficial effects of the utility model are: the setting of the edging 34 on the external fixing part 33 and the setting of the surrounding wall 12 on the front cover 1 can increase the bonding area between the sound membrane 3 and the front cover 1, thereby reducing the risk of separation between the front cover 1 and the sound membrane 3; more importantly, the setting of the first convex ring structure 341 on the edging 34 can form a first glue-containing area 351 and a second glue-containing area 352 between the front cover 1 and the edging 34, thereby increasing the total amount of glue that can be accommodated in the gap between the front cover 1 and the edging 34, thereby further improving the stability of the connection between the front cover 1 and the sound membrane 3 to a greater extent, and further reducing the risk of separation between the front cover 1 and the sound membrane 3.

[0034] Furthermore, the first convex ring structure 341 abuts against the surrounding wall 12 .

[0035] It can be known from the above description that the first convex ring structure 341 abuts against the inner side surface of the surrounding wall 12, so that the first glue containing area 351 can be closed, thereby better retaining the glue.

[0036] Furthermore, there are a plurality of first convex ring structures 341 , and a third adhesive containing area 353 is formed between two adjacent first convex ring structures 341 .

[0037] It can be seen from the above description that the existence of the third glue containing area 353 allows the gap between the front cover 1 and the edge 34 to retain more glue.

[0038] Furthermore, the outer fixing portion 33 and the edge covering 34 are an integral structure formed by integral injection molding.

[0039] It can be seen from the above description that the sound membrane 3 is easy to process and has a low manufacturing cost.

[0040] Furthermore, the outer wall of the basin frame 2 has a receiving groove 21 for receiving at least a partial area of ​​the edging 34 .

[0041] It can be seen from the above description that the provision of the receiving groove 21 can not only reduce the manufacturing consumables of the basin frame 2 and save material costs, but also facilitate the positioning and installation of the sound membrane 3.

[0042] Furthermore, at least one second convex ring structure 342 is provided on the inner side surface of the edging 34, and a fourth glue-containing area 354 is formed between the second convex ring structure 342 close to the outer fixing portion 33 and the outer fixing portion 33, and a fifth glue-containing area 355 is formed below the second convex ring structure 342 away from the outer fixing portion 33.

[0043] It can be seen from the above description that there is a high bonding strength between the basin frame 2 and the sound membrane 3, which is beneficial to improving the structural stability of the sound unit.

[0044] Furthermore, the second convex ring structure 342 abuts against the basin frame 2 .

[0045] It can be known from the above description that the second convex ring structure 342 abuts against the basin frame 2, so that the fourth glue containing area 354 can be closed, thereby better retaining the glue.

[0046] Furthermore, there are a plurality of second convex ring structures 342 , and a sixth adhesive containing area 356 is formed between two adjacent second convex ring structures 342 .

[0047] It can be seen from the above description that the existence of the sixth glue containing area 356 allows the gap between the basin frame 2 and the edge 34 to retain more glue.

[0048] Furthermore, in the cross section of the edge wrapping 34 , the first convex ring structure 341 and the second convex ring structure 342 are arranged correspondingly.

[0049] Embodiment 1

[0050] Please refer to Figures 1 to 4 , Embodiment 1 of the present utility model is: a sound unit, which can be applied to electronic devices such as mobile phones, tablet computers, smart watches, game controllers, etc.

[0051] The sound-emitting unit includes a front cover 1, a basin frame 2, and a vibration component and a magnetic circuit component respectively connected to the basin frame 2, the magnetic circuit component has a magnetic gap, the vibration component includes a diaphragm component and a voice coil connected to the diaphragm component, the voice coil is arranged corresponding to the magnetic gap, the diaphragm component includes a sound membrane 3, the sound membrane 3 is fixed to the basin frame 2 by glue, and the front cover 1 is fixed to the sound membrane 3 by glue.

[0052] The sound membrane 3 includes an inner fixing portion 31, a folding ring portion 32 and an outer fixing portion 33 which are sequentially connected from the inside to the outside. The bottom surface of the outer fixing portion 33 is adhesively connected to the top surface of the basin frame 2. In detail, the outer fixing portion 33 has a rim 34, and the rim 34 is in a ring frame shape as a whole. The inner wall surface of the rim 34 is bonded to the basin frame 2. Optionally, the outer fixing portion 33 and the rim 34 are an integral structure of integral injection molding. In this embodiment, the rim 34 is connected to the outer edge of the outer fixing portion 33.

[0053] The front cover 1 is pressed on the sound membrane 3, and the front cover 1 includes a contact ring frame 11, and the contact ring frame 11 is connected to a surrounding wall 12, and the surrounding wall 12 is in the shape of a ring frame as a whole. The bottom surface of the contact ring frame 11 is bonded to the top surface of the external fixing portion 33, and the surrounding wall 12 is located on the outside of the edge 34; the outer side surface of the edge 34 is provided with at least one first convex ring structure 341, and a first glue-containing area 351 is formed between the first convex ring structure 341 close to the contact ring frame 11 and the contact ring frame 11, and a second glue-containing area 352 is formed below the first convex ring structure 341 away from the contact ring frame 11.

[0054] As a preferred embodiment, the number of the first convex ring structures 341 is multiple, and a third adhesive containing area 353 is formed between two adjacent first convex ring structures 341; the first convex ring structure 341 abuts against the surrounding wall 12. In this embodiment, three first convex ring structures 341 are provided on the edge 34, and the three first convex ring structures 341 form two third adhesive containing areas 353.

[0055] When the outer fixing portion 33 and the edge package 34 are an integral structure formed by integral injection molding, the first convex ring structure 341 can be considered as a partial area of ​​the edge package 34 .

[0056] The cross-section of the first convex ring structure 341 can be polygonal, semicircular, semi-elliptical, etc., and can be selected and set according to actual needs.

[0057] To facilitate the positioning and installation of the sound membrane 3 and the basin frame 2 , optionally, the outer wall of the basin frame 2 has a receiving groove 21 for accommodating at least a partial area of ​​the edging 34 .

[0058] In order to improve the bonding strength between the sound membrane 3 and the basin frame 2, in this embodiment, at least one second convex ring structure 342 is provided on the inner side surface of the edging 34, and a fourth glue-containing area 354 is formed between the second convex ring structure 342 close to the external fixing part 33 and the external fixing part 33, and a fifth glue-containing area 355 is formed below the second convex ring structure 342 away from the external fixing part 33.

[0059] As a preferred embodiment, the number of the second convex ring structures 342 is multiple, and a sixth adhesive containing area 356 is formed between two adjacent second convex ring structures 342; the second convex ring structure 342 abuts against the basin frame 2. In this embodiment, three second convex ring structures 342 are provided on the edge 34, and the three second convex ring structures 342 form two sixth adhesive containing areas 356.

[0060] When the outer fixing portion 33 and the edge package 34 are an integral structure formed by integral injection molding, the second convex ring structure 342 can be considered as a partial area of ​​the edge package 34 .

[0061] The cross-section of the second convex ring structure 342 can be polygonal, semicircular, semi-elliptical, etc., and can be selected and set according to actual needs.

[0062] Optionally, in the cross section of the edge wrapping 34 , the first convex ring structure 341 and the second convex ring structure 342 are arranged correspondingly.

[0063] In summary, in the sound unit provided by the utility model, the sound membrane and the front cover can form a larger bonding area, and more glue can be retained in the gap between the two, which effectively improves the stability of the connection between the sound membrane and the front cover.

[0064] The above description is only 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 specification 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 generating unit, characterized in that: include basin stand; A sound diaphragm, the sound diaphragm comprising an external fixing portion, the external fixing portion having an edge, the edge being in the shape of a ring frame as a whole, and the inner wall surface of the edge being bonded to the basin frame; A front cover, the front cover is pressed on the sound membrane, the front cover comprises a contact ring frame, the contact ring frame is connected with a surrounding wall, the bottom surface of the contact ring frame is bonded to the top surface of the external fixing part, and the surrounding wall is located outside the edge; At least one first convex ring structure is disposed on the outer side of the rim, a first adhesive containing area is formed between the first convex ring structure close to the contact ring frame and the contact ring frame, and a second adhesive containing area is formed below the first convex ring structure away from the contact ring frame.

2. The sound generating unit according to claim 1, characterized in that: The first convex ring structure abuts against the surrounding wall.

3. The sound generating unit according to claim 1, characterized in that: There are multiple first convex ring structures, and a third glue containing area is formed between two adjacent first convex ring structures.

4. The sound generating unit according to claim 1, characterized in that: The outer fixing portion and the edge wrapping are an integral structure formed by integral injection molding.

5. The sound generating unit according to claim 1, characterized in that: The outer wall of the basin frame has a receiving groove for receiving at least a partial area of ​​the edging.

6. The sound generating unit according to claim 1, characterized in that: At least one second convex ring structure is provided on the inner side surface of the edging, a fourth glue containing area is formed between the second convex ring structure close to the outer fixing part and the outer fixing part, and a fifth glue containing area is formed below the second convex ring structure away from the outer fixing part.

7. The sound generating unit according to claim 6, characterized in that: The second convex ring structure abuts against the basin frame.

8. The sound generating unit according to claim 7, characterized in that: There are multiple second convex ring structures, and a sixth adhesive containing area is formed between two adjacent second convex ring structures.

9. The sound generating unit according to claim 6, characterized in that: In the cross section of the hemming, the first convex ring structure and the second convex ring structure are arranged correspondingly.

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