CN221240498U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN221240498U CN221240498U CN202323137796.9U CN202323137796U CN221240498U CN 221240498 U CN221240498 U CN 221240498U CN 202323137796 U CN202323137796 U CN 202323137796U CN 221240498 U CN221240498 U CN 221240498U
- Authority
- CN
- China
- Prior art keywords
- micro
- speaker
- annular
- convex hull
- yoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a miniature loudspeaker, which comprises a basin frame, a vibrating diaphragm assembly, a support piece, a yoke, a central magnetic structure, a second voice coil and two first voice coils, wherein the two first voice coils are fixedly arranged in the basin frame and are arranged at intervals up and down; the vibrating diaphragm component is connected to the top of the basin stand; the support piece is arranged corresponding to a gap between the two first voice coils, the center of the support piece is provided with a hollow convex hull protruding upwards, a top plate of the hollow convex hull is connected with the vibrating diaphragm assembly, and the top surface and the bottom surface of the support piece are respectively provided with an annular magnetic structure arranged around the hollow convex hull; the second voice coil is arranged in the hollow convex hull; the yoke is connected to the bottom of the basin stand; the central magnetic structure is arranged on the top surface of the yoke and corresponds to the hollow area of the second voice coil. The miniature loudspeaker is novel in structure, the combination of the moving iron and the moving coil is matched with the multi-magnetic circuit structure, the BL value of the miniature loudspeaker is greatly improved, the bass sensitivity is improved, the tone quality and the hearing of the miniature loudspeaker are improved, and the acoustic performance of the miniature loudspeaker is enhanced.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker.
Background
Mobile terminal devices such as mobile phones and tablet computers are now enriching the lives of people, and micro speakers play an indispensable role as audio devices. At the same time, consumer demand for sound loudness is increasing, and correspondingly, performance requirements of micro-speakers are increasing.
In the prior art, micro speakers are generally moving coil structures, and relatively few researches are conducted on moving iron speakers. Moreover, currently, a moving-iron speaker is generally a single-tone-coil driving structure, which results in a low BL value of the moving-iron speaker, and an acoustic effect is to be improved.
Disclosure of utility model
The technical problems solved by the utility model are as follows: a micro-speaker excellent in acoustic performance is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
The basin stand is provided with a basin stand,
The two first voice coils are fixedly arranged in the basin frame and are arranged at intervals up and down;
The vibrating diaphragm assembly is connected to the top of the basin frame;
The support piece is arranged corresponding to a gap between the two first voice coils, the center of the support piece is provided with a hollow convex hull protruding upwards, a top plate of the hollow convex hull is connected with the vibrating diaphragm assembly, and the top surface and the bottom surface of the support piece are respectively provided with an annular magnetic structure arranged around the hollow convex hull;
the second voice coil is arranged in the hollow convex hull;
The yoke is connected to the bottom of the basin frame;
And the central magnetic structure is arranged on the top surface of the yoke and corresponds to the hollow area of the second voice coil.
In an embodiment, the central magnetic structure comprises a central magnetic steel and a central washer, and the central magnetic steel connects the central washer and the yoke.
In an embodiment, the annular magnetic structure comprises annular magnetic steel and annular washer, and the annular magnetic steel is connected with the annular washer and the supporting piece.
In an embodiment, the annular magnetic steel comprises a plurality of sub magnetic steels, and the plurality of sub magnetic steels are distributed in a ring frame shape.
In an embodiment, the annular washer comprises a plurality of sub-washers, and the plurality of sub-washers are arranged in an annular frame shape.
In an embodiment, the basin frame is provided with a mounting part protruding towards the inner side, the mounting part is at least partially positioned between the two first voice coils, and at least one first voice coil is fixedly connected with the mounting part.
In an embodiment, the two first voice coils are connected and fixed with the mounting part.
In one embodiment, the mounting portion is integrally annular.
In one embodiment, the first voice coil located at the lower layer is fixedly connected with the yoke.
In an embodiment, the hollow convex hull is a stamped structure formed by stamping.
The utility model has the beneficial effects that: the miniature loudspeaker is novel in structure, the combination of the moving iron and the moving coil is matched with the multi-magnetic circuit structure, the BL value of the miniature loudspeaker is greatly improved, the bass sensitivity is improved, the tone quality and the hearing of the miniature loudspeaker are improved, and the acoustic performance of the miniature loudspeaker is enhanced.
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 a schematic structural diagram of a portion of a micro-speaker according to a first embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a support member in a micro speaker according to a first embodiment of the present utility model.
Reference numerals illustrate:
1. a basin stand; 11. a mounting part;
2. a diaphragm assembly;
3. a support; 31. hollow convex hulls;
4. a yoke;
5. A central magnetic structure;
6. A toroidal magnetic structure;
7. A first voice coil;
8. And a second 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 merely for explaining a relative positional relationship, a movement condition, and the like between the components in a specific posture as 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 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; 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 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, a first embodiment of the present utility model is as follows: a micro loudspeaker can be applied to electronic equipment such as mobile phones, tablet computers, intelligent watches, interphones, hearing aids and the like.
The miniature loudspeaker comprises a basin frame 1, a vibrating diaphragm assembly 2, a supporting piece 3, a yoke 4, a central magnetic structure 5, an annular magnetic structure 6, a second voice coil 8 and two first voice coils 7, wherein the two first voice coils 7 are fixedly arranged in the basin frame 1 and are arranged at intervals up and down, that is to say, a gap is formed between the two first voice coils 7 in the height direction of the miniature loudspeaker; the vibrating diaphragm assembly 2 is connected to the top of the basin stand 1; the supporting pieces 3 are arranged corresponding to the gaps between the two first voice coils 7, a hollow convex hull 31 protruding upwards is arranged in the center of each supporting piece 3, the top plate of each hollow convex hull 31 is connected with the vibrating diaphragm assembly 2, and the top surface and the bottom surface of each supporting piece 3 are respectively provided with the annular magnetic structures 6 arranged around the hollow convex hulls 31; the second voice coil 8 is arranged in the hollow convex hull 31; the yoke 4 is connected to the bottom of the basin frame 1; the central magnetic structure 5 is disposed on the top surface of the yoke 4 and corresponds to the hollow region of the second voice coil 8. Optionally, the hollow convex hull 31 is a stamped structure formed by stamping.
It is easy to understand that the support 3, the diaphragm assembly 2 and the second voice coil 8 vibrate with respect to the frame 1 and the first voice coil 7 during operation of the micro-speaker.
In a preferred embodiment, the support 3 is made of a magnetically conductive material, for example, the same material as the yoke 4.
Specifically, the central magnetic structure 5 includes a central magnetic steel and a central washer, and the central magnetic steel connects the central washer and the yoke 4.
In this embodiment, the annular magnetic structure 6 includes annular magnetic steel and annular washer, and the annular magnetic steel connects the annular washer and the supporting member 3. In other embodiments, the annular magnetic steel includes a plurality of sub magnetic steels, the plurality of sub magnetic steels are arranged in a ring frame shape, and thus, the overall structure surrounded by the plurality of sub magnetic steels in the ring frame shape can be equivalently the annular magnetic steel. When the annular magnetic steel is surrounded by a plurality of the sub-magnetic steels, optionally, the annular washer comprises a plurality of sub-washers, and the plurality of sub-washers are distributed in an annular frame shape; of course, in this case, an integral annular washer is also possible.
In order to enable the stable mounting and fixing of the first voice coils 7, the basin frame 1 has a mounting portion 11 protruding toward the inside, and the mounting portion 11 is at least partially located between the two first voice coils 7, that is, the mounting portion 11 extends into the gap between the two first voice coils 7, at this time, at least one of the first voice coils 7 is fixedly connected to the mounting portion 11, preferably, both of the first voice coils 7 are fixedly connected to the mounting portion 11. Further preferably, the whole mounting portion 11 is in a ring frame shape, so that not only the connection area between the first voice coil 7 and the basin frame 1 can be increased, but also the structural strength of the basin frame 1 itself can be enhanced.
In some embodiments, the first voice coil 7 positioned at the lower layer is connected and fixed with the yoke 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. A miniature loudspeaker, characterized by: comprising
The basin stand is provided with a basin stand,
The two first voice coils are fixedly arranged in the basin frame and are arranged at intervals up and down;
The vibrating diaphragm assembly is connected to the top of the basin frame;
The support piece is arranged corresponding to a gap between the two first voice coils, the center of the support piece is provided with a hollow convex hull protruding upwards, a top plate of the hollow convex hull is connected with the vibrating diaphragm assembly, and the top surface and the bottom surface of the support piece are respectively provided with an annular magnetic structure arranged around the hollow convex hull;
the second voice coil is arranged in the hollow convex hull;
The yoke is connected to the bottom of the basin frame;
And the central magnetic structure is arranged on the top surface of the yoke and corresponds to the hollow area of the second voice coil.
2. A micro-speaker as claimed in claim 1, wherein: the central magnetic structure comprises central magnetic steel and a central washer, and the central magnetic steel is connected with the central washer and the yoke.
3. A micro-speaker as claimed in claim 1, wherein: the annular magnetic structure comprises annular magnetic steel and an annular washer, and the annular magnetic steel is connected with the annular washer and the supporting piece.
4. A micro-speaker as claimed in claim 3, wherein: the annular magnetic steel comprises a plurality of sub-magnetic steels, and the sub-magnetic steels are distributed in a ring frame shape.
5. A micro-speaker as claimed in claim 4, wherein: the annular washer comprises a plurality of sub-washers, and the plurality of sub-washers are distributed in an annular frame shape.
6. A micro-speaker as claimed in claim 1, wherein: the basin frame is provided with an installation part protruding inwards, at least part of the installation part is positioned between the two first voice coils, and at least one first voice coil is fixedly connected with the installation part.
7. A micro-speaker as claimed in claim 6, wherein: the two first voice coils are connected and fixed with the mounting part.
8. A micro-speaker as claimed in claim 6, wherein: the whole installation part is in a ring frame shape.
9. A micro-speaker as claimed in claim 1, wherein: the first voice coil positioned at the lower layer is fixedly connected with the yoke.
10. A micro-speaker as claimed in claim 1, wherein: the hollow convex hull is a stamping structure formed by stamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323137796.9U CN221240498U (en) | 2023-11-20 | 2023-11-20 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323137796.9U CN221240498U (en) | 2023-11-20 | 2023-11-20 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221240498U true CN221240498U (en) | 2024-06-28 |
Family
ID=91595532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323137796.9U Active CN221240498U (en) | 2023-11-20 | 2023-11-20 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221240498U (en) |
-
2023
- 2023-11-20 CN CN202323137796.9U patent/CN221240498U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114554369B (en) | Sound producing device and electronic equipment | |
| CN205051866U (en) | Sounding device | |
| CN221240498U (en) | Miniature loudspeaker | |
| CN217721459U (en) | Coaxial loudspeaker | |
| CN113785599A (en) | Micro speaker with symmetric voice coil and magnetic circuit | |
| CN221240499U (en) | Micro-speaker, speaker module and terminal equipment | |
| CN221240500U (en) | Miniature loudspeaker | |
| CN201134927Y (en) | Electroacoustical converter | |
| CN220606077U (en) | Miniature loudspeaker | |
| CN114866921A (en) | Sound production device and audio equipment | |
| CN219876100U (en) | Miniature loudspeaker | |
| CN220965131U (en) | Miniature loudspeaker | |
| CN219876101U (en) | Miniature loudspeaker | |
| CN220965128U (en) | Miniature loudspeaker | |
| CN220422049U (en) | Miniature loudspeaker | |
| CN220307358U (en) | Miniature loudspeaker | |
| CN219999595U (en) | Miniature loudspeaker | |
| CN221467904U (en) | Miniature loudspeaker and electronic equipment | |
| CN220234935U (en) | Miniature loudspeaker | |
| CN220965142U (en) | Miniature loudspeaker | |
| CN117425117A (en) | Miniature loudspeaker | |
| CN220307371U (en) | Miniature loudspeaker | |
| CN220732995U (en) | Micro-speaker | |
| CN221467903U (en) | Micro loudspeaker and loudspeaker module | |
| CN220606064U (en) | Micro-speaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |