CN220307364U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN220307364U CN220307364U CN202321408862.9U CN202321408862U CN220307364U CN 220307364 U CN220307364 U CN 220307364U CN 202321408862 U CN202321408862 U CN 202321408862U CN 220307364 U CN220307364 U CN 220307364U
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- micro
- voice coil
- speaker
- convex ring
- ring structure
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- 239000007787 solid Substances 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004377 microelectronic Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a miniature loudspeaker, which comprises a vibrating diaphragm, a voice coil and a dome, wherein the dome is connected with the vibrating diaphragm, and a convex ring structure protruding downwards is arranged on the dome; the voice coil loudspeaker voice coil is located the bulge loop structure's below and connect bulge loop structure, bulge loop structure is last to be equipped with the intercommunication the air current passageway of voice coil loudspeaker voice coil outside. The dome is provided with a convex ring structure connected with the voice coil, more areas of the voice coil can sink into a magnetic gap of the magnetic circuit assembly, so that the utilization efficiency of a magnetic field is improved, the distortion phenomenon of the micro-speaker is improved, BL parameters of the micro-speaker are more symmetrical, the performance of the micro-speaker is further improved, moreover, an air flow channel on the convex ring structure can be communicated with an inner space and an outer space of the voice coil, and in the sounding process of the micro-speaker, air flow in the inner space can be timely exchanged with the outer space through the air flow channel, so that the high-frequency sensitivity of the micro-speaker is improved.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker.
Background
As a device capable of converting electric energy into acoustic energy, a micro speaker has been widely used in microelectronic devices such as smart phones, camcorders, cameras, and notebook computers.
In the prior art, the top surface of voice coil loudspeaker voice coil and the bottom surface adhesive connection of ball top, the voice coil loudspeaker voice coil is through driving ball top motion in order to drive the vibrating diaphragm sound production, simultaneously, the voice coil loudspeaker voice coil also separates micro-speaker's inner space into two parts, at micro-speaker sound production in-process, the air current can't circulate in time between voice coil loudspeaker voice coil inner space and outside space to the high frequency sensitivity of micro-speaker receives certain influence.
Disclosure of Invention
The technical problems solved by the utility model are as follows: a micro-speaker with good high-frequency sensitivity is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
a vibrating diaphragm;
a voice coil;
the ball top is connected with the vibrating diaphragm, and a convex ring structure protruding downwards is arranged on the ball top;
the voice coil loudspeaker voice coil is located the bulge loop structure's below and connect bulge loop structure, bulge loop structure is last to be equipped with the intercommunication the air current passageway of voice coil loudspeaker voice coil outside.
Further, the convex ring structure is a hollow convex hull.
Further, the convex ring structure is a stamping structure formed by stamping.
Further, the convex ring structure is a solid structure.
Further, the whole convex ring structure is rectangular frame-shaped, the number of the airflow channels is multiple, and the airflow channels with the number being multiple are symmetrically arranged.
Further, the long side and the short side of the convex ring structure are respectively provided with the air flow channel.
Further, the long side of the convex ring structure is provided with the air flow channel.
Further, the short side of the convex ring structure is provided with the air flow channel.
Further, the corners of the convex ring structure are provided with the air flow channels.
Further, the long side and/or the short side of the convex ring structure are/is provided with the air flow channel.
The utility model has the beneficial effects that: the dome is provided with a convex ring structure connected with the voice coil, more areas of the voice coil can sink into a magnetic gap of the magnetic circuit assembly, so that the utilization efficiency of a magnetic field is improved, the distortion phenomenon of the micro-speaker is improved, BL parameters of the micro-speaker are more symmetrical, the performance of the micro-speaker is further improved, moreover, an air flow channel on the convex ring structure can be communicated with an inner space and an outer space of the voice coil, and in the sounding process of the micro-speaker, air flow in the inner space can be timely exchanged with the outer space through the air flow channel, so that the high-frequency sensitivity of the micro-speaker is improved.
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 quarter 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 schematic structural diagram of a portion of a micro-speaker according to a first embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a part of the micro-speaker according to the second embodiment of the present utility model;
fig. 5 is a schematic structural diagram of a part of the structure of a micro-speaker according to a third embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a part of the structure of a micro-speaker according to a fourth embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a part of the structure of a micro-speaker according to a fifth embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a part of the structure of a micro-speaker according to a sixth embodiment of the present utility model.
Reference numerals illustrate:
1. a basin stand;
2. a magnetic circuit assembly;
3. a vibrating diaphragm; 31. an inner fixing part; 32. a ring folding part; 33. an outer fixing part;
4. a dome; 41. a convex ring structure; 42. an air flow channel;
5. and a voice coil.
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 loudspeaker can be applied to microelectronic devices such as smart phones, camcorders, cameras, notebook computers and the like.
The miniature loudspeaker 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, side magnetic steels and Bian Huasi, the central magnetic steel and the side magnetic steels 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 steels;
the vibration assembly comprises a vibrating diaphragm 3, a dome 4 and a voice coil 5, wherein the dome 4 is connected with the vibrating diaphragm 3, and the voice coil 5 is connected with the dome 4.
In this embodiment, the diaphragm 3 includes an inner fixing portion 31, a ring folding 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 basin frame 1, a window is formed in the inner fixing portion 31, the dome 4 is connected with the inner fixing portion 31 and seals the window, a convex ring structure 41 protruding downwards is formed in the dome 4, the voice coil 5 is located below the convex ring structure 41 and connected with the convex ring structure 41, and an air flow channel 42 which is communicated with the inner side and the outer side of the voice coil 5 is formed in the convex ring structure 41.
Optionally, the collar structure 41 is bonded to the voice coil 5. Preferably, the bonding surface of the collar structure 41 and the voice coil 5 is lower than or flush with the bottom surface of the inner fixing portion 31, in this embodiment, the dome 4 is bonded to the top surface of the inner fixing portion 31, that is, at least a part of the area of the collar structure 41 is located in the open window, and the height of the collar structure 41 is greater than or equal to the thickness of the inner fixing portion 31, and more preferably, the height of the collar structure 41 is greater than the thickness of the inner fixing portion 31, so that more area of the voice coil 5 can sink into the magnetic gap.
In this embodiment, the convex ring structure 41 is a hollow convex hull, and specifically, the convex ring structure 41 is a stamped structure formed by stamping. The hollow collar structure 41 can reduce the weight of the dome 4, thereby making the micro-speaker lighter and thinner.
In detail, the convex ring structure 41 is integrally rectangular, the number of the air flow channels 42 is multiple, the air flow channels 42 are symmetrically arranged to enable the vibration assembly to vibrate more balanced, the risk of polarization of the vibration assembly is reduced, and performance of the micro-speaker is guaranteed.
Optionally, the long side and the short side of the convex ring structure 41 are provided with the air flow channels 42. In this embodiment, the middle parts of the two long sides and the middle parts of the two short sides of the convex ring structure 41 are respectively provided with the air flow channel 42.
In addition, in this embodiment, only one air flow channel 42 is provided on each of the long side and the short side, and in other embodiments, a plurality of air flow channels 42 may be provided on each of the long side and/or the short side, which may be specifically selected according to actual needs.
Example two
Referring to fig. 4, a second embodiment of the present utility model is a parallel technical solution of the first embodiment, and is different from the first embodiment in that:
the collar structure 41 is a solid structure, i.e. in this embodiment, the collar structure 41 is not a stamped structure formed by stamping. The solid convex ring structure 41 can effectively improve the structural strength of the dome 4, thereby ensuring the acoustic performance of the micro-speaker.
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: the long sides of the collar structure 41 are provided with air flow channels 42, whereas the short sides of the collar structure 41 are free of said air flow channels 42.
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 short sides of the collar structure 41 are provided with air flow channels 42, whereas the long sides of the collar structure 41 are free of said air flow channels 42.
Example five
Referring to fig. 7, a fifth embodiment of the present utility model is a parallel technical solution of the first embodiment, and is different from the first embodiment in that: the long side and the short side of the convex ring structure 41 are provided with no air flow channel 42, and the corners of the convex ring structure 41 are provided with the air flow channel 42.
Example six
Referring to fig. 8, a sixth embodiment of the present utility model is a parallel technical solution of the first embodiment, and is different from the first embodiment in that: the collar structure 41 has not only air flow channels 42 on the long and short sides, but also the corners of the collar structure 41 are provided with said air flow channels 42 as well.
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 vibrating diaphragm;
a voice coil;
the ball top is connected with the vibrating diaphragm, and a convex ring structure protruding downwards is arranged on the ball top;
the voice coil loudspeaker voice coil is located the bulge loop structure's below and connect bulge loop structure, bulge loop structure is last to be equipped with the intercommunication the air current passageway of voice coil loudspeaker voice coil outside.
2. A micro-speaker as claimed in claim 1, wherein: the convex ring structure is a hollow convex hull.
3. A micro-speaker as claimed in claim 2, wherein: the convex ring structure is a stamping structure formed by stamping.
4. A micro-speaker as claimed in claim 1, wherein: the convex ring structure is a solid structure.
5. A micro-speaker as claimed in claim 1, wherein: the convex ring structure is integrally rectangular and frame-shaped, the number of the airflow channels is multiple, and the airflow channels are symmetrically arranged.
6. A micro-speaker as claimed in claim 5, wherein: the long side edge and the short side edge of the convex ring structure are respectively provided with the air flow channel.
7. A micro-speaker as claimed in claim 5, wherein: the long side of the convex ring structure is provided with the airflow channel.
8. A micro-speaker as claimed in claim 5, wherein: the short side of the convex ring structure is provided with the airflow channel.
9. A micro-speaker as claimed in claim 5, wherein: the corner of the convex ring structure is provided with the airflow channel.
10. A micro-speaker as claimed in claim 9, wherein: the long side edge and/or the short side edge of the convex ring structure are/is provided with the air flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408862.9U CN220307364U (en) | 2023-06-02 | 2023-06-02 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408862.9U CN220307364U (en) | 2023-06-02 | 2023-06-02 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220307364U true CN220307364U (en) | 2024-01-05 |
Family
ID=89349576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321408862.9U Active CN220307364U (en) | 2023-06-02 | 2023-06-02 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220307364U (en) |
-
2023
- 2023-06-02 CN CN202321408862.9U patent/CN220307364U/en active Active
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