CN222339587U - Miniature loudspeaker and electronic equipment - Google Patents
Miniature loudspeaker and electronic equipment Download PDFInfo
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- CN222339587U CN222339587U CN202323497071.0U CN202323497071U CN222339587U CN 222339587 U CN222339587 U CN 222339587U CN 202323497071 U CN202323497071 U CN 202323497071U CN 222339587 U CN222339587 U CN 222339587U
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Abstract
The utility model discloses a micro loudspeaker and electronic equipment, wherein the micro loudspeaker comprises a vibrating diaphragm, a ball top, a voice coil and a first colloid, the vibrating diaphragm comprises an inner fixing part, a window is arranged in the central area of the inner fixing part, the ball top is arranged on the top surface of the inner fixing part and seals the window, a first gap is formed between the top surface of the voice coil and the bottom surface of the inner fixing part, the inner peripheral wall of the voice coil is arranged corresponding to the hollow area of the window, a first glue containing groove communicated with the first gap is formed by surrounding the wall surface of the window, the bottom surface of the ball top and the top surface of the voice coil, and the first colloid comprises a first gap filling part for filling the first gap and a first glue groove filling part for at least partially filling the first glue containing groove. The inner peripheral wall of windowing of vibrating diaphragm in this micro-speaker encloses with ball top and voice coil loudspeaker voice coil and closes out first appearance and glue the groove and regard as the overflow space for magnetic circuit assembly no longer need set up and is used for dodging the inboard structure of dodging of gluing of voice coil loudspeaker voice coil, is favorable to guaranteeing magnetic circuit assembly's volume, thereby ensures that micro-speaker can realize high performance.
Description
Technical Field
The utility model relates to the technical field of electroacoustic transducers, in particular to a miniature loudspeaker and electronic equipment.
Background
The micro-speaker is used as a device capable of converting electric energy into acoustic energy, and is widely applied to microelectronic devices such as smart phones, camcorders, cameras, notebook computers and the like.
In the related art, micro-speaker generally includes magnetic circuit assembly, vibration subassembly and supporting component, wherein, vibration subassembly includes the ball top, vibrating diaphragm and voice coil loudspeaker voice coil, at present the voice coil loudspeaker voice coil is direct to bond on the vibrating diaphragm through glue more, in order to increase fixed effect, can make glue to both sides glue overflow, the inboard and the outside at the top of voice coil loudspeaker voice coil form the glue overflow district respectively, however, glue overflow can occupy the space, in order to avoid under high amplitude power circumstances, magnetic circuit assembly can design chamfer and/or blank holder to dodge corresponding to the glue overflow district, but the chamfer, the setting of blank holder can reduce magnetic circuit assembly's volume, lead to micro-speaker performance to reduce.
Disclosure of utility model
The utility model solves the technical problem of providing a high-performance micro-speaker and electronic equipment with the same.
In order to solve the technical problems, the first technical scheme adopted by the utility model is that the miniature loudspeaker comprises:
the vibrating diaphragm comprises an inner fixing part, and a window is arranged in the central area of the inner fixing part;
The ball top is arranged on the top surface of the inner fixing part and seals the window;
The voice coil is provided with a first gap between the top surface of the voice coil and the bottom surface of the inner fixing part, the inner peripheral wall of the voice coil is arranged corresponding to the hollow area of the window, and the wall surface of the window, the bottom surface of the top of the voice coil and the top surface of the voice coil enclose a first glue containing groove communicated with the first gap;
The first colloid comprises a first gap filling part for filling the first gap and a first colloid groove filling part for at least partially filling the first colloid containing groove.
In an embodiment, the first glue body further comprises a glue overflow block located on the outer side wall of the voice coil, a notch communicated with the first gap is formed on the outer side of the top of the voice coil, and the glue overflow block is located at the notch and connected with the first gap filling portion.
In an embodiment, the first gap filling portion is connected to the first glue groove filling portion.
In an embodiment, the vibrating diaphragm further comprises a reinforcing rib, the reinforcing rib is arranged in the opening window, two ends of the reinforcing rib are respectively connected with the inner fixing portions, the number of the voice coils is a plurality of voice coils which are arranged side by side, and two adjacent side edges, close to each other, of the voice coils are fixed with the same reinforcing rib through a second colloid.
In an embodiment, a second gap is formed between the adjacent side edges of the two voice coils, which are close to each other, and the bottom surface of the reinforcing rib, the side surface of the reinforcing rib, the bottom surface of the ball top and the top surface of the voice coil enclose a second glue containing groove communicated with the second gap, and the second glue comprises a second gap filling part for filling the second gap and a second glue groove filling part for at least partially filling the second glue containing groove.
In an embodiment, the second glue accommodating grooves are formed on two opposite sides of the reinforcing rib.
In an embodiment, the second gap filling portion is connected to the second glue groove filling portion.
In an embodiment, the second colloid further includes a connection portion, and the connection portion is located on the top surface of the reinforcing rib and is connected to the dome.
In an embodiment, the connecting portion connects the second glue groove filling portion.
In order to solve the technical problems, the second technical scheme adopted by the utility model is that the electronic equipment comprises the micro-speaker.
The utility model has the beneficial effects that the first glue containing groove is formed by encircling the inner peripheral wall of the opening window of the vibrating diaphragm, the ball top and the voice coil as a glue overflowing space, so that the magnetic circuit assembly does not need to be provided with a avoiding structure for avoiding glue overflowing on the inner side of the voice coil, the volume of the magnetic circuit assembly is ensured, and the micro-speaker can realize high performance.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of a micro-speaker according to a first embodiment of the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
fig. 3 is a cross-sectional view of a micro speaker according to another structure of the first embodiment of the present utility model;
Fig. 4 is a cross-sectional view of a micro-speaker according to a second embodiment of the present utility model;
Fig. 5 is an enlarged view at B in fig. 4.
Reference numerals illustrate:
1. A basin stand;
2. A magnetic circuit assembly;
3. The vibrating diaphragm, 31, an inner fixing part, 32, a folded ring part, 33, an outer fixing part, 34, a window, 35 and a reinforcing rib;
4. a dome;
5. 51, notch;
6. The device comprises a first colloid, a first gap filling part, a first colloid groove filling part, a first colloid overflow block and a second colloid overflow block, wherein the first colloid is 61;
7. The second glue body, 71, a second gap filling part, 72, a second glue groove filling part, 73, a connecting part.
Detailed Description
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications such as up, down, left, right, front, and rear are referred to, and the directional indication is merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture such as that shown in the drawings, and if the specific posture is changed, the directional indication is correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, if the meaning of "and/or" is presented throughout this document to include three parallel schemes, taking "and/or" as an example, including a scheme, or a scheme that is satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1 to 3, an embodiment of the utility model is an electronic device including, but not limited to, a mobile phone, a smart watch, a computer, etc., which has a micro speaker, so as to realize a playback function.
As shown in fig. 1 and 2, the micro-speaker comprises a frame 1, and a vibration assembly and a magnetic circuit assembly 2 respectively connected with the frame 1, the vibration assembly comprises a vibrating diaphragm 3, a dome 4 and a voice coil 5, the magnetic circuit assembly 2 has a magnetic gap for the voice coil 5 to move, the vibrating diaphragm 3 comprises an inner fixing portion 31, a hinge portion 32 and an outer fixing portion 33 which are sequentially connected from inside to outside, the outer fixing portion 33 is connected with the frame 1, a window 34 is arranged in the central area of the inner fixing portion 31, the dome 4 is arranged on the top surface of the inner fixing portion 31 and seals the window 34, the voice coil 5 is located below the inner fixing portion 31, a first gap is formed between the top surface of the voice coil 5 and the bottom surface of the inner fixing portion 31, the inner peripheral wall of the window 34, the bottom surface of the dome 4 and the top surface of the voice coil 5 are sequentially connected with each other from inside to outside, a first glue containing groove 62 is formed by sealing the top surface of the dome 4, and the voice coil 5 is preferably filled with the first glue containing groove 62, and the first glue filling groove 61 is preferably filled with the first glue filling groove 61.
In this embodiment, the number of the voice coils 5 is one, when the diaphragm 3 and the voice coils 5 are connected in a top view, the inner area of the top surface of the voice coil 5 is visible, and the visible area of the top surface of the voice coil 5 is integrated into a ring frame shape. It is easy to understand that the first glue groove filling portion 62 is not protruded from the inner peripheral wall of the voice coil 5, i.e. the first glue groove filling portion 62 is not visible when looking up at the vibration assembly.
In order to ensure the connection stability of the diaphragm 3 and the voice coil 5, in this embodiment, the first adhesive 6 further includes an overflow block 63 located on the outer side wall of the voice coil 5.
As shown in fig. 3, preferably, a notch 51 communicating with the first gap is formed on the outer side of the top of the voice coil 5, and the glue overflow block 63 is located at the notch 51 and connected to the first gap filling portion 61. Therefore, the avoidance structure corresponding to the glue overflow block 63 is not required to be arranged on the magnetic circuit assembly 2, the size of the magnetic circuit assembly 2 is further guaranteed, and the performance of the micro-speaker is improved.
Example two
Referring to fig. 4 and 5, the second embodiment of the present utility model is a parallel solution of the first embodiment, and is different from the first embodiment in that in this embodiment, the number of voice coils 5 is plural, and in this case, the plural voice coils 5 are arranged side by side.
Specifically, the diaphragm 3 further includes a reinforcing rib 35, the reinforcing rib 35 is disposed in the opening 34, two ends of the reinforcing rib 35 are respectively connected with the inner fixing portion 31, and two adjacent sides of the voice coil 5, which are close to each other, are fixed with the same reinforcing rib 35 through the second colloid 7. Preferably, the reinforcing ribs 35 and the inner fixing portion 31 are integrally formed as a one-piece structure.
It is easy to understand that it is enough that the adjacent two voice coils 5 have a gap or contact between the outer sides of the sides close to each other, and preferably, the adjacent two voice coils 5 are adhered and fixed to the outer sides of the sides close to each other, so that the split vibration phenomenon of the micro-speaker can be improved, and the structural stability and performance of the micro-speaker can be improved.
A second gap is formed between the adjacent side edges of the two voice coils 5, which are close to each other, and the bottom surface of the reinforcing rib 35, the side surface of the reinforcing rib 35, the bottom surface of the ball top 4 and the top surface of the voice coil 5 enclose a second glue containing groove communicated with the second gap, and the second glue 7 comprises a second gap filling part 71 for filling the second gap and a second glue groove filling part 72 for at least partially filling the second glue containing groove. It is easy to understand that the second glue groove filling portion 72 is not protruded from the inner peripheral wall of the voice coil 5, i.e. the second glue groove filling portion 72 is not visible when looking up at the vibration assembly.
Preferably, the second glue grooves are formed on two opposite sides of the reinforcing rib 35.
The second gap filling portion 71 is connected to the second glue groove filling portion 72.
Optionally, the second glue 7 further includes a connection portion 73, where the connection portion 73 is located on the top surface of the stiffener 35 and is connected to the dome 4. The presence of the connection portion 73 can enhance the structural stability of the vibration assembly, and prevent the dome 4 from colliding with the reinforcing rib 35 to generate noise, so that the performance of the micro-speaker is affected.
As a preferred embodiment, the connection portion 73 is connected to the second glue groove filling portion 72. In this embodiment, the cross section of the second colloid 7 is in a ring frame shape, that is, at least a part of the area of the reinforcing rib 35 is covered by the second colloid 7.
The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A micro speaker is characterized by comprising
The vibrating diaphragm comprises an inner fixing part, and a window is arranged in the central area of the inner fixing part;
The ball top is arranged on the top surface of the inner fixing part and seals the window;
The voice coil is provided with a first gap between the top surface of the voice coil and the bottom surface of the inner fixing part, the inner peripheral wall of the voice coil is arranged corresponding to the hollow area of the window, and the wall surface of the window, the bottom surface of the top of the voice coil and the top surface of the voice coil enclose a first glue containing groove communicated with the first gap;
The first colloid comprises a first gap filling part for filling the first gap and a first colloid groove filling part for at least partially filling the first colloid containing groove.
2. The micro-speaker of claim 1, wherein the first glue further comprises a glue overflow block located on an outer side wall of the voice coil, a notch communicated with the first gap is formed on the outer side of the top of the voice coil, and the glue overflow block is located at the notch and connected with the first gap filling portion.
3. The micro-speaker of claim 2, wherein the first gap filling portion is connected to the first glue groove filling portion.
4. The micro-speaker of claim 1, wherein the diaphragm further comprises a reinforcing rib, the reinforcing rib is disposed in the opening window, two ends of the reinforcing rib are respectively connected with the inner fixing portion, the number of the voice coils is a plurality of voice coils disposed side by side, and two adjacent side edges, close to each other, of the voice coils are fixed with the same reinforcing rib through a second colloid.
5. The micro-speaker of claim 4, wherein a second gap is formed between the adjacent side edges of the two voice coils, which are close to each other, and the bottom surface of the reinforcing rib, the side surface of the reinforcing rib, the bottom surface of the dome and the top surface of the voice coil enclose a second glue groove communicating with the second gap, and the second glue comprises a second gap filling part for filling the second gap and a second glue groove filling part for at least partially filling the second glue groove.
6. The micro-speaker of claim 5, wherein the second glue groove is formed on each of opposite sides of the stiffener.
7. The micro-speaker of claim 5, wherein the second gap filling portion is connected to the second glue groove filling portion.
8. The micro-speaker of claim 5, wherein the second gel further comprises a connecting portion, wherein the connecting portion is located on the top surface of the stiffener and is connected to the dome.
9. The micro-speaker of claim 8, wherein the connection portion is connected to the second groove filling portion.
10. An electronic device comprising a micro-speaker according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323497071.0U CN222339587U (en) | 2023-12-20 | 2023-12-20 | Miniature loudspeaker and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323497071.0U CN222339587U (en) | 2023-12-20 | 2023-12-20 | Miniature loudspeaker and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222339587U true CN222339587U (en) | 2025-01-10 |
Family
ID=94145340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323497071.0U Active CN222339587U (en) | 2023-12-20 | 2023-12-20 | Miniature loudspeaker and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222339587U (en) |
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2023
- 2023-12-20 CN CN202323497071.0U patent/CN222339587U/en active Active
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