CN220307360U - Micro-speaker - Google Patents
Micro-speaker Download PDFInfo
- Publication number
- CN220307360U CN220307360U CN202321400055.2U CN202321400055U CN220307360U CN 220307360 U CN220307360 U CN 220307360U CN 202321400055 U CN202321400055 U CN 202321400055U CN 220307360 U CN220307360 U CN 220307360U
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- Prior art keywords
- voice coil
- micro
- speaker
- dome
- connecting part
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- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 230000004308 accommodation Effects 0.000 description 8
- 238000004804 winding Methods 0.000 description 3
- 238000004377 microelectronic Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a micro-speaker, which comprises a voice coil and a dome assembly, wherein the dome assembly comprises an inner dome and an outer dome arranged around the inner dome, the edge of the inner dome is provided with a first connecting part, and the inner edge of the outer dome is provided with a second connecting part; the first connecting part and the second connecting part are respectively connected with the voice coil, and a gap for exposing a part of the area of the voice coil is formed between the first connecting part and the second connecting part. The miniature loudspeaker is novel in structure, the dome is divided into the inner dome and the outer dome which are arranged in a gap, and the partial area of the voice coil is exposed through the gap between the inner dome and the outer dome, so that heat generated by the voice coil can be directly dissipated to the outside through the gap, the heat dissipation capacity of the voice coil is improved, the performance of the miniature loudspeaker is guaranteed, and the service life of the miniature loudspeaker is prolonged.
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 general, the energy conversion efficiency of the micro-speaker is low, most of energy is converted into heat, so that the temperature inside the micro-speaker rises, and irreversible damage is caused to the micro-speaker, for example, phenomena such as demagnetization of magnetic steel, collapse of a vibrating diaphragm, failure of glue and the like can be caused by overheating or overhigh temperature of the micro-speaker, thereby influencing the performance and service life of the micro-speaker.
The heat that causes the temperature of the micro-speaker to rise is generated by energizing the voice coil, and therefore, a means for improving the heat dissipation effect of the voice coil is required.
Disclosure of Invention
The utility model mainly aims to provide a miniature loudspeaker with a novel structure, and aims to solve the problem that the voice coil of the traditional miniature loudspeaker is poor in heat dissipation capacity.
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 assembly comprises an inner ball top and an outer ball top arranged around the inner ball top, wherein the edge of the inner ball top is provided with a first connecting part, and the inner edge of the outer ball top is provided with a second connecting part;
the first connecting part and the second connecting part are respectively connected with the voice coil, and a gap for exposing a part of the area of the voice coil is formed between the first connecting part and the second connecting part.
Further, the connection position of the first connection part and the voice coil is located at the top surface of the voice coil, and the connection position of the second connection part and the voice coil is located at the top surface of the voice coil.
Further, the voice coil has a first receiving groove that receives at least a partial region of the first connection portion.
Further, the first accommodation groove communicates with an inner wall surface of the voice coil.
Further, the voice coil has a second receiving groove that receives at least a partial region of the second connection portion.
Further, the second accommodation groove communicates with an outer wall surface of the voice coil.
Further, the top surface of the voice coil is provided with a containing groove, at least part of the area of the first connecting part and at least part of the area of the second connecting part are both positioned in the containing groove, and part of the area of the bottom surface of the containing groove is exposed.
Further, the accommodating groove is positioned in the middle area of the top surface of the voice coil.
Further, the receiving groove communicates with an inner wall surface of the voice coil or an outer wall surface of the voice coil.
Further, the first connection part is an inner vertical wall bent and extended from the edge of the inner dome to the direction close to the voice coil, and the outer wall surface of the inner vertical wall is connected with the inner wall surface of the voice coil.
The utility model has the beneficial effects that: the miniature loudspeaker is novel in structure, the dome is divided into the inner dome and the outer dome which are arranged in a gap, and the partial area of the voice coil is exposed through the gap between the inner dome and the outer dome, so that heat generated by the voice coil can be directly dissipated to the outside through the gap, the heat dissipation capacity of the voice coil is improved, the performance of the miniature loudspeaker is guaranteed, and the service life of the miniature loudspeaker is prolonged.
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 an exploded view of a micro-speaker according to a first embodiment of the present utility model;
fig. 2 is a cross-sectional view of a micro speaker according to a first embodiment of the present utility model;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is a cross-sectional view of a partial area of a micro-speaker according to a second embodiment of the present utility model;
fig. 5 is a cross-sectional view of a partial area of a micro speaker according to a third embodiment of the present utility model;
fig. 6 is a cross-sectional view of a partial area of a micro-speaker according to a fourth embodiment of the present utility model;
fig. 7 is a cross-sectional view of a partial area of a micro-speaker according to a fifth embodiment of the present utility model;
fig. 8 is a sectional view of a partial area of a micro speaker according to a sixth embodiment of the present utility model;
fig. 9 is a sectional view of a partial area of a micro speaker according to a seventh 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; 34. windowing;
4. a voice coil; 41. a first accommodation groove; 42. a second accommodation groove; 43. a receiving groove;
5. an inner dome; 51. a first connection portion;
6. an outer dome; 62. a second connecting portion;
7. and a support assembly.
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: the micro-speaker can be applied to micro-electronic 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 assembly and a voice coil 4, wherein the vibrating diaphragm 3 comprises an inner fixing part 31, a folded ring part 32 and an outer fixing part 33 which are sequentially connected from inside to outside, a window 34 is arranged on the inner fixing part 31, and the dome assembly is connected with the inner fixing part 31 and seals the window 34;
the dome assembly comprises an inner dome 5 and an outer dome 6 arranged around the inner dome 5, the outer dome 6 is connected with the inner fixing part 31, a first connecting part 51 is arranged at the edge of the inner dome 5, a second connecting part 62 is arranged at the inner edge of the outer dome 6, the first connecting part 51 and the second connecting part 62 are respectively connected with the voice coil 4, a gap for exposing a part area of the voice coil 4 is formed between the first connecting part 51 and the second connecting part 62, and heat generated by the voice coil 4 can be directly dissipated to the outside through the gap.
In this embodiment, the connection position between the first connection portion 51 and the voice coil 4 is located on the top surface of the voice coil 4, and the connection position between the second connection portion 62 and the voice coil 4 is located on the top surface of the voice coil 4.
In some embodiments, the inner dome 5 and the outer dome 6 are respectively planar structures. In this embodiment, in order to improve the efficiency of the voice coil 4 in using the magnetic field of the magnetic circuit assembly 2, it is preferable that the first connection portion 51 and the second connection portion 62 have a vertical wall structure that is bent and extended toward the direction approaching the voice coil 4, so that more area of the bottom of the voice coil 4 can be immersed in the magnetic gap.
Optionally, the micro-speaker further includes a support assembly 7, the support assembly 7 connects the voice coil 4 with the basin frame 1, the support assembly 7 performs a function of correcting the deviation of the voice coil 4, and the support assembly 7 includes a centering support and/or a secondary membrane.
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 voice coil 4 has a first accommodation groove 41 accommodating at least a partial region of the first connection portion 51.
For convenience of winding the voice coil 4, it is preferable that the first receiving groove 41 communicates with an inner wall surface of the voice coil 4.
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 voice coil 4 has a second accommodation groove 42 accommodating at least a partial region of the second connection portion 62.
For convenience of the winding and shaping of the voice coil 4, it is preferable that the second receiving groove 42 communicates with an outer wall surface of the voice coil 4.
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 voice coil 4 has a first accommodation groove 41 accommodating at least a partial region of the first connection portion 51 and a second accommodation groove 42 accommodating at least a partial region of the second connection portion 62.
Preferably, the first accommodating groove 41 communicates with an inner wall surface of the voice coil 4; the second accommodating groove 42 communicates with the outer wall surface of the voice coil 4.
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 top surface of the voice coil 4 is provided with a receiving groove 43, at least a part of the area of the first connecting portion 51 and at least a part of the area of the second connecting portion 62 are both located in the receiving groove 43, and a part of the area of the bottom surface of the receiving groove 43 is exposed.
In this embodiment, the receiving groove 43 is located in a middle area of the top surface of the voice coil 4. That is, the receiving groove 43 is not communicated with the inner wall surface of the voice coil 4 nor the outer wall surface of the voice coil 4.
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 top surface of the voice coil 4 is provided with a receiving groove 43, at least a part of the area of the first connecting portion 51 and at least a part of the area of the second connecting portion 62 are both located in the receiving groove 43, and a part of the area of the bottom surface of the receiving groove 43 is exposed.
In this embodiment, the receiving groove 43 communicates with the outer wall surface of the voice coil 4, and the receiving groove 43 does not communicate with the inner wall surface of the voice coil 4.
In other embodiments, the receiving groove 43 may communicate only with the inner wall surface of the voice coil 4, but not with the outer wall surface of the voice coil 4.
Example seven
Referring to fig. 9, a seventh 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 first connection portion 51 is an inner wall bent and extended from the edge of the inner dome 5 toward the voice coil 4, and the outer wall surface of the inner wall is connected to the inner wall surface of the voice coil 4.
Optionally, the voice coil 4 has a second receiving groove 42 receiving at least a partial region of the second connecting portion 62. For convenience of the winding and shaping of the voice coil 4, it is preferable that the second receiving groove 42 communicates with an outer wall surface of the voice coil 4.
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. Miniature speaker, its characterized in that: comprising
A voice coil;
the ball top assembly comprises an inner ball top and an outer ball top arranged around the inner ball top, wherein the edge of the inner ball top is provided with a first connecting part, and the inner edge of the outer ball top is provided with a second connecting part;
the first connecting part and the second connecting part are respectively connected with the voice coil, and a gap for exposing a part of the area of the voice coil is formed between the first connecting part and the second connecting part.
2. A micro-speaker as claimed in claim 1, wherein: the connection position of the first connection part and the voice coil is positioned on the top surface of the voice coil, and the connection position of the second connection part and the voice coil is positioned on the top surface of the voice coil.
3. A micro-speaker as claimed in claim 1, wherein: the voice coil has a first receiving groove that receives at least a partial region of the first connection portion.
4. A micro-speaker as claimed in claim 3, wherein: the first accommodating groove is communicated with the inner wall surface of the voice coil.
5. A micro-speaker as claimed in claim 1, wherein: the voice coil has a second receiving groove that receives at least a partial region of the second connection portion.
6. A micro-speaker as claimed in claim 5, wherein: the second accommodating groove is communicated with the outer wall surface of the voice coil.
7. A micro-speaker as claimed in claim 1, wherein: the top surface of voice coil is equipped with the accommodating groove, at least partial region of first connecting portion with at least partial region of second connecting portion all is located the accommodating groove, the partial region of accommodating groove's bottom surface exposes.
8. A micro-speaker as claimed in claim 7, wherein: the accommodating groove is positioned in the middle area of the top surface of the voice coil.
9. A micro-speaker as claimed in claim 7, wherein: the accommodating groove is communicated with the inner wall surface of the voice coil or the outer wall surface of the voice coil.
10. A micro-speaker as claimed in claim 1, wherein: the first connecting part is an inner vertical wall which is bent and extended from the edge of the inner spherical top towards the direction close to the voice coil, and the outer wall surface of the inner vertical wall is connected with the inner wall surface of the voice coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321400055.2U CN220307360U (en) | 2023-06-02 | 2023-06-02 | Micro-speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321400055.2U CN220307360U (en) | 2023-06-02 | 2023-06-02 | Micro-speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220307360U true CN220307360U (en) | 2024-01-05 |
Family
ID=89349113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321400055.2U Active CN220307360U (en) | 2023-06-02 | 2023-06-02 | Micro-speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220307360U (en) |
-
2023
- 2023-06-02 CN CN202321400055.2U patent/CN220307360U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |