CN220307361U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN220307361U CN220307361U CN202321401777.XU CN202321401777U CN220307361U CN 220307361 U CN220307361 U CN 220307361U CN 202321401777 U CN202321401777 U CN 202321401777U CN 220307361 U CN220307361 U CN 220307361U
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- China
- Prior art keywords
- voice coil
- micro
- speaker
- glue containing
- containing step
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- 239000003292 glue Substances 0.000 claims abstract description 58
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a micro loudspeaker, which comprises a voice coil and a top ball, wherein the top ball is positioned above the voice coil and is in adhesive connection with the voice coil, a first glue containing step is arranged in the area of the top ball corresponding to the voice coil, and the first glue containing step is communicated with a gap between the top ball and the voice coil. When the top of the ball bonds with the voice coil, the first glue containing step not only increases the bonding area of the voice coil and the top of the ball, improves the connection stability of the top of the ball and the voice coil, and reduces the risk of the micro-speaker falling off the coil.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker.
Background
The micro-speaker is widely applied to portable electronic devices such as mobile phones, notebook computers, hearing aids and the like. With the rapid development of these portable electronic devices, the requirements for the functionality of the portable electronic devices are increasing, and the micro-speakers mounted on the portable electronic devices are correspondingly developed.
In the existing miniature loudspeaker, the voice coil and the vibrating diaphragm assembly are bonded through an adhesive, so that the adhesive quantity cannot be too small in order to ensure the bonding effect, otherwise, the voice coil and the vibrating diaphragm assembly are not firmly connected, and the phenomenon of coil falling easily occurs; if the glue quantity is too much, the situations such as glue overflow and the like are easy to occur, and when the glue overflow problem occurs, the phenomenon such as collision between the glue overflow and the magnetic circuit component can occur in the vibration process of the micro-speaker, so that the micro-speaker sounds abnormally, and the yield of the micro-speaker is reduced.
Disclosure of Invention
The technical problems solved by the utility model are as follows: the miniature loudspeaker is stable in connection between the voice coil and the vibrating diaphragm assembly and low in glue overflow risk.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
a voice coil;
the ball top is positioned above the voice coil and is connected with the voice coil in an adhesive mode, a first glue containing step is arranged in the area, corresponding to the voice coil, of the ball top, and the first glue containing step is communicated with a gap between the ball top and the voice coil.
Further, the first glue containing step is arranged on the inner side and/or the outer side of the dome corresponding to the voice coil.
Further, the top surface of the voice coil is provided with an upper protruding portion, and the upper protruding portion stretches into the first glue containing step.
Further, the upper protruding portion is arranged in a non-contact manner with the dome.
Further, at least one side of the top of the voice coil is provided with a second glue containing step, and the second glue containing step is communicated with a gap between the ball top and the voice coil.
Further, the section of the first glue containing step is in a convex hull shape, and the first glue containing step is arranged corresponding to the center of the top of the section of the voice coil.
Further, the first glue containing step is a bending structure formed by bending.
Further, the vibrating diaphragm comprises an inner fixing part, a folded ring part and an outer fixing part which are sequentially connected from inside to outside, and the inner fixing part is connected with the dome.
Further, the dome is located below the inner fixing portion.
Further, the inner fixing part is provided with a window, the ball top comprises a central part and an edge ring part which are connected, the joint of the central part and the edge ring part forms the first glue containing step, and the edge ring part is connected with the top surface or the bottom surface of the inner fixing part.
The utility model has the beneficial effects that: when the top of the ball bonds with the voice coil, the first glue containing step not only increases the bonding area of the voice coil and the top of the ball, improves the connection stability of the top of the ball and the voice coil, and reduces the risk of the micro-speaker falling off the coil.
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 partial sectional view of a micro speaker according to another structure of the first embodiment of the present utility model;
fig. 4 is a partial sectional view of a micro-speaker according to a second embodiment of the present utility model;
fig. 5 is a partial sectional view of a micro speaker according to a third embodiment of the present utility model;
fig. 6 is a partial sectional view of a micro speaker according to a fourth embodiment of the present utility model.
Reference numerals illustrate:
1. a basin stand;
2. a magnetic circuit assembly;
3. a voice coil; 31. an upper convex part; 32. a second glue containing step;
4. a dome; 41. a first glue containing step; 42. a center portion; 43. an edge ring portion;
5. a vibrating diaphragm; 51. an inner fixing part; 52. a ring folding part; 53. an outer fixing part; 54. and (5) windowing.
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 changed accordingly.
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 this application, unless specifically stated 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; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Example 1
Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: a micro-speaker can be applied to portable electronic equipment such as mobile phones, notebook computers, hearing aids and the like.
As shown in fig. 1 and 2, the micro-speaker comprises a basin frame 1, and a vibration component and a magnetic circuit component 2 which are respectively connected with the basin frame 1, wherein the magnetic circuit component 2 comprises a yoke, a central magnetic steel, a central washer, a side magnetic steel and Bian Huasi, the central magnetic steel and the side magnetic steel are respectively arranged on the yoke, the central washer is arranged on the top surface of the central magnetic steel, bian Huasi is arranged on the top surface of the side magnetic steel, bian Huasi is connected with the basin frame 1, and a magnetic gap is formed between the central magnetic steel and the side magnetic steel; the vibration subassembly includes diaphragm subassembly and voice coil loudspeaker voice coil 3 that link to each other, voice coil loudspeaker voice coil 3 activity in the magnetic gap, diaphragm subassembly is including diaphragm 5 and the ball top 4 that link to each other, the outward flange of diaphragm 5 is connected basin frame 1, ball top 4 is located voice coil loudspeaker voice coil 3's top and with voice coil loudspeaker voice coil 3 adhesive connection.
The area of the ball top 4 corresponding to the voice coil 3 is provided with a first glue containing step 41, and the first glue containing step 41 is communicated with a gap between the ball top 4 and the voice coil 3. And a part of glue solution for connecting the voice coil 3 and the dome 4 is positioned in the first glue containing step 41, and the other part of glue solution is positioned in a gap between the dome 4 and the voice coil 3.
Optionally, as shown in fig. 2, the inner side of the dome 4 corresponding to the voice coil 3 is provided with the first glue containing step 41; of course, as shown in fig. 3, the first glue accommodating step 41 may be provided on the outer side of the dome 4 corresponding to the voice coil 3. In other embodiments, it is also possible that the dome 4 is provided with the first glue containing step 41 corresponding to the inner side and the outer side of the voice coil 3, respectively.
As shown in fig. 1 and 2, specifically, the diaphragm 5 includes an inner fixing portion 51, a folded ring portion 52 and an outer fixing portion 53 sequentially connected from inside to outside, the inner fixing portion 51 is connected to the dome 4, and the outer fixing portion 53 is connected to the basin frame 1.
In some embodiments, the inner fixing portion 51 may be a complete sheet structure, and the dome 4 is located below the inner fixing portion 51. However, in this embodiment, the inner fixing portion 51 has a window 54, the dome 4 includes a central portion 42 and an edge ring portion 43 that are connected to each other, the connection between the central portion 42 and the edge ring portion 43 forms the first glue receiving step 41, and the edge ring portion 43 is connected to the top surface or the bottom surface of the inner fixing portion 51, that is, it is sufficient that the edge ring portion 43 is located above or below the inner fixing portion 51.
Optionally, the first glue accommodating step 41 is a bending structure formed by bending.
Example two
Referring to fig. 4, a second embodiment of the present utility model is a further improvement of the voice coil 3 based on the first embodiment, and is different from the first embodiment in that: the top surface of the voice coil 3 is provided with an upper protruding portion 31, and the upper protruding portion 31 extends into the first glue containing step 41, so that the total length of the voice coil 3 can be increased, the L value of the micro-speaker is improved, the acoustic performance of the micro-speaker is improved, the adhesive joint area of the voice coil 3 and the dome 4 can be increased, and the structural stability of the micro-speaker is further improved.
Preferably, the upper protrusion 31 is not in contact with the dome 4. Thus, the glue solution in the first glue containing step 41 can flow conveniently, and the phenomenon of glue shortage in the local area in the first glue containing step 41 is improved.
Example III
Referring to fig. 5, a third embodiment of the present utility model is a parallel technical solution of the first embodiment, and is different from the first embodiment in that: at least one side of the top of the voice coil 3 is provided with a second glue containing step 32, and the second glue containing step 32 is communicated with a gap between the dome 4 and the voice coil 3. The second glue containing step 32 may also serve to contain glue, and the arrangement of the second glue containing step 32 is beneficial to further improve the glue overflow phenomenon at the connection position of the voice coil 3 and the dome 4 in the micro-speaker.
In this embodiment, the first glue containing step 41 and the second glue containing step 32 are respectively located on the inner side and the outer side of the voice coil 3.
Example IV
Referring to fig. 6, a fourth embodiment of the present utility model is a parallel solution of the first embodiment, and is different from the first embodiment in that: the section of the first glue containing step 41 is in a convex hull shape, and the first glue containing step 41 is arranged corresponding to the center of the top of the section of the voice coil 3.
The first glue containing step 41 with the convex hull-shaped cross section can better play a glue containing role, so that the glue overflow phenomenon at the joint of the voice coil 3 and the dome 4 in the micro-speaker can be better improved.
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 miniature loudspeaker, characterized by: comprising
A voice coil;
the ball top is positioned above the voice coil and is connected with the voice coil in an adhesive mode, a first glue containing step is arranged in the area, corresponding to the voice coil, of the ball top, and the first glue containing step is communicated with a gap between the ball top and the voice coil.
2. A micro-speaker as claimed in claim 1, wherein: the ball top is provided with the first glue containing step corresponding to the inner side and/or the outer side of the voice coil.
3. A micro-speaker as claimed in claim 1, wherein: the top surface of voice coil loudspeaker voice coil has the upper ledge, the upper ledge stretches into in the first holds gluey step.
4. A micro-speaker as claimed in claim 3, wherein: the upper convex part is arranged in a non-contact way with the ball top.
5. A micro-speaker as claimed in claim 1, wherein: at least one side of the top of the voice coil is provided with a second glue containing step, and the second glue containing step is communicated with a gap between the ball top and the voice coil.
6. A micro-speaker as claimed in claim 1, wherein: the section of the first glue containing step is in a convex hull shape, and the first glue containing step is arranged corresponding to the center of the top of the section of the voice coil.
7. A micro-speaker as claimed in claim 1, wherein: the first glue containing step is of a bending structure formed by bending.
8. A micro-speaker as claimed in claim 1, wherein: still include the vibrating diaphragm, the vibrating diaphragm includes interior fixed part, book ring portion and the external fixation portion that links to each other in proper order from inside to outside, interior fixed part connects the dome.
9. A micro-speaker as claimed in claim 8, wherein: the dome is located below the inner fixing portion.
10. A micro-speaker as claimed in claim 8, wherein: the inner fixing part is provided with a window, the ball top comprises a central part and an edge ring part which are connected, the joint of the central part and the edge ring part forms the first glue containing step, and the edge ring part is connected with the top surface or the bottom surface of the inner fixing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321401777.XU CN220307361U (en) | 2023-06-02 | 2023-06-02 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321401777.XU CN220307361U (en) | 2023-06-02 | 2023-06-02 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220307361U true CN220307361U (en) | 2024-01-05 |
Family
ID=89347567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321401777.XU Active CN220307361U (en) | 2023-06-02 | 2023-06-02 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220307361U (en) |
-
2023
- 2023-06-02 CN CN202321401777.XU patent/CN220307361U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |