CN220606074U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN220606074U CN220606074U CN202322174404.XU CN202322174404U CN220606074U CN 220606074 U CN220606074 U CN 220606074U CN 202322174404 U CN202322174404 U CN 202322174404U CN 220606074 U CN220606074 U CN 220606074U
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- diaphragm assembly
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000012528 membrane Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The utility model discloses a micro loudspeaker, which comprises a first vibration unit, a second vibration unit, a central magnetic structure, a magnetic conduction bracket, side magnetic steel and an annular washer, wherein the first vibration unit comprises a first vibrating diaphragm assembly and a first voice coil which are connected; the second vibration unit comprises a second vibrating diaphragm assembly and a second voice coil which are connected; the central area of the magnetic conduction bracket is provided with a concave part, the central magnetic structure is arranged in the concave part, and the first vibrating diaphragm assembly is connected with the magnetic conduction bracket; the number of the side magnetic steels is multiple, the side magnetic steels are arranged around the concave part, and the side magnetic steels are connected with the magnetic conduction bracket; the annular washer is positioned below the edge magnetic steel and connected with the edge magnetic steel, and the second vibrating diaphragm assembly is connected with the annular washer; a first magnetic gap for the first voice coil to move is formed between the central magnetic structure and the inner side wall of the lower concave part, and a second magnetic gap for the second voice coil to move is formed between the side magnetic steel and the outer side wall of the lower concave part. The miniature loudspeaker has less parts and low production cost.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker.
Background
The chinese patent application No. 202220091570.6 discloses a double-sided speaker, which can realize double-sided sound production, but has numerous parts, so that the manufacturing consumables are more, the assembly process is very time-consuming, and the manufacturing cost is high.
Disclosure of Invention
The utility model mainly aims to provide a novel-structure miniature loudspeaker capable of producing sound on two sides, and aims to solve the problem of high production cost of the existing double-sided loudspeaker.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
the first vibration unit comprises a first vibrating diaphragm assembly and a first voice coil which are connected;
the second vibration unit comprises a second vibrating diaphragm assembly and a second voice coil which are connected;
a central magnetic structure;
the central region of the magnetic conduction bracket is provided with a lower concave part, the central magnetic structure is arranged in the lower concave part, and the first vibrating diaphragm assembly is connected with the magnetic conduction bracket;
the side magnetic steels are arranged in a plurality, surround the concave part, and are connected with the magnetic conduction bracket;
the annular washer is arranged below the edge magnetic steel and connected with the edge magnetic steel, and the second vibrating diaphragm assembly is connected with the annular washer;
a first magnetic gap for the first voice coil to move is formed between the central magnetic structure and the inner side wall of the lower concave part, and a second magnetic gap for the second voice coil to move is formed between the side magnetic steel and the outer side wall of the lower concave part; the magnetic conduction support is provided with a communication port for communicating the inner side and the outer side of the concave part.
In an embodiment, the magnetic conductive support has an upper protruding portion protruding upwards, and the first diaphragm assembly is connected to the upper protruding portion.
In one embodiment, the upper protruding part is in a shape of a connected or discontinuous ring frame.
In an embodiment, the upper protruding portion is disposed near or along an edge of the magnetically permeable support.
In an embodiment, the annular washer has a downward protruding portion protruding downward, and the second diaphragm assembly is connected to the downward protruding portion.
In one embodiment, the lower protrusion is in the shape of a connected or intermittent ring frame.
In an embodiment, the lower protrusion is disposed near or along an edge of the annular washer.
In an embodiment, the communication port is provided corresponding to a corner of the concave portion.
In an embodiment, the communication port includes a first region provided on a wall of the recessed portion.
In an embodiment, the communication port further includes a second area disposed on the magnetically permeable support, and the second area is communicated with the first area.
The utility model has the beneficial effects that:
the miniature loudspeaker can realize double-sided vibration, has higher sound loudness, can realize private conversation by coaxial vibration in a receiver mode, and is favorable for improving the condition of sound leakage.
The miniature loudspeaker has the advantages of simple and novel structure, less component parts, less consumption of manufacturing raw materials, low cost of raw materials, short assembly process, less production time consumption, low assembly cost and higher cost 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 schematic structural diagram 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 a schematic structural diagram of a magnetic conductive bracket in a micro speaker according to a first embodiment of the present utility model.
Reference numerals illustrate:
11. a first diaphragm assembly; 12. a first voice coil;
21. a second diaphragm assembly; 22. a second voice coil;
3. a central magnetic structure;
4. a magnetic conduction bracket; 41. a concave portion; 42. a ring frame portion; 43. an upper convex part; 44. a communication port; 441. a first region; 442. a second region;
5. edge magnetic steel;
6. annular washer; 61. and a lower convex 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 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 electronic equipment such as a mobile phone, a smart watch, a tablet personal computer, a game handle and the like.
The miniature loudspeaker comprises a first vibration unit, a second vibration unit, a central magnetic structure 3, a magnetic conduction bracket 4, edge magnetic steel 5 and an annular washer 6; the first vibration unit comprises a first vibrating diaphragm assembly 11 and a first voice coil 12 which are connected, and the second vibration unit comprises a second vibrating diaphragm assembly 21 and a second voice coil 22 which are connected; optionally, the first diaphragm assembly 11 includes a first sound membrane and a first dome connected, and similarly, the second diaphragm assembly 21 includes a second sound membrane and a second dome connected, and in some embodiments, the first diaphragm assembly 11 only has the first sound membrane, and the second diaphragm assembly 21 only has the second sound membrane.
A lower concave part 41 is arranged in the central area of the magnetic conduction bracket 4, the central magnetic structure 3 is arranged in the lower concave part 41, and the first vibrating diaphragm assembly 11 is connected with the magnetic conduction bracket 4; from another angle, the magnetically conductive bracket 4 includes a connected ring frame 42 and a lower recess 41, the lower recess 41 is disposed corresponding to a window in the center of the ring frame 42, and a connection between the lower recess 41 and the ring frame 42 is located at an edge of the window.
The central magnetic structure 3 comprises central magnetic steel and a central washer, the bottom surface of the central magnetic steel is connected with the bottom plate of the concave part 41, and the top surface of the central magnetic steel is connected with the bottom surface of the central washer.
The number of the side magnetic steels 5 is multiple, the side magnetic steels 5 are arranged around the concave portion 41, the side magnetic steels 5 are connected with the magnetic conduction support 4, namely the top surface of the side magnetic steels 5 is fixedly connected with the bottom surface of the ring frame portion 42, and optionally, the side magnetic steels 5 are fixedly bonded with the ring frame portion 42. It is easy to understand that the bottom plate of the concave portion 41 may be regarded as a yoke, the wall of the concave portion 41 is a flange of the yoke, and the ring frame 42 is a washer structure, that is, the magnetic conductive bracket 4 performs multiple functions, thereby realizing multiple functions.
The annular washer 6 is positioned below the edge magnetic steel 5 and connected with the edge magnetic steel 5, and the second vibrating diaphragm assembly 21 is connected with the annular washer 6; optionally, the bottom surface of the edge magnetic steel 5 is adhered and fixed with the top surface of the annular washer 6.
A first magnetic gap for the first voice coil 12 to move is formed between the central magnetic structure 3 and the inner side wall of the lower concave part 41, and a second magnetic gap for the second voice coil 22 to move is formed between the side magnetic steel 5 and the outer side wall of the lower concave part 41.
In order to make the first diaphragm assembly 11 have enough vibration space, and simultaneously ensure that the micro-speaker can be miniaturized and the performance of the micro-speaker is ensured, preferably, the magnetic conductive bracket 4 has an upper protruding portion 43 protruding upwards, the first diaphragm assembly 11 is connected with the upper protruding portion 43, and the upper protruding portion 43 is in a connected or discontinuous ring frame shape. Further preferably, the upper protruding part 43 is disposed near or along the edge of the magnetic conductive bracket 4. In this embodiment, the upper protruding portion 43, the ring frame portion 42, and the lower protruding portion 61 are integrally formed as a single piece, such as integrally formed by press molding, integrally cast molding, or the like.
In order to allow the second diaphragm assembly 21 to have a sufficient vibration space while ensuring miniaturization of the micro-speaker and performance of the micro-speaker, it is preferable that the annular washer 6 has a downward protruding lower protrusion 61, the second diaphragm assembly 21 is connected to the lower protrusion 61, and the lower protrusion 61 is in a connected or intermittent annular frame shape. Further preferably, the lower protrusion 61 is provided close to or along the edge of the annular washer 6. In this embodiment, the lower protruding portion 61 and the annular washer 6 are integrally formed as a single piece, such as integrally formed by press molding, integrally cast molding, or the like.
The magnetically conductive holder 4 has a communication port 44 for communicating the inside and the outside of the recessed portion 41. In this embodiment, the communication port 44 is disposed corresponding to the corner of the recess 41, so that the influence of the disposition of the communication port 44 on the magnetic field of the micro-speaker can be reduced to the maximum extent. In other embodiments, the communication port 44 may be provided on the bottom plate of the lower protrusion 61 or the ring frame 42.
The communication port 44 includes a first region 441 provided on the wall of the recessed portion 41. Optionally, the communication port 44 further includes a second area 442 provided on the magnetically permeable support 4, where the second area 442 communicates with the first area 441, as will be understood, and the second area 442 is located on the ring frame 42.
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 first vibration unit comprises a first vibrating diaphragm assembly and a first voice coil which are connected;
the second vibration unit comprises a second vibrating diaphragm assembly and a second voice coil which are connected;
a central magnetic structure;
the central region of the magnetic conduction bracket is provided with a lower concave part, the central magnetic structure is arranged in the lower concave part, and the first vibrating diaphragm assembly is connected with the magnetic conduction bracket;
the side magnetic steels are arranged in a plurality, surround the concave part, and are connected with the magnetic conduction bracket;
the annular washer is arranged below the edge magnetic steel and connected with the edge magnetic steel, and the second vibrating diaphragm assembly is connected with the annular washer;
a first magnetic gap for the first voice coil to move is formed between the central magnetic structure and the inner side wall of the lower concave part, and a second magnetic gap for the second voice coil to move is formed between the side magnetic steel and the outer side wall of the lower concave part; the magnetic conduction support is provided with a communication port for communicating the inner side and the outer side of the concave part.
2. A micro-speaker as claimed in claim 1, wherein: the magnetic conduction support is provided with an upward protruding upper protruding portion, and the first vibrating diaphragm assembly is connected with the upper protruding portion.
3. A micro-speaker as claimed in claim 2, wherein: the upper convex part is in a connected or discontinuous annular frame shape.
4. A micro-speaker as claimed in claim 2, wherein: the upper protruding part is arranged close to or along the edge of the magnetic conduction bracket.
5. A micro-speaker as claimed in claim 1, wherein: the annular washer is provided with a lower convex part protruding downwards, and the second vibrating diaphragm component is connected with the lower convex part.
6. A micro-speaker as claimed in claim 5, wherein: the lower convex part is in a connected or discontinuous annular frame shape.
7. A micro-speaker as claimed in claim 5, wherein: the lower protruding portion is arranged close to or along the edge of the annular washer.
8. A micro-speaker as claimed in claim 1, wherein: the communication port is provided corresponding to a corner of the recessed portion.
9. A micro-speaker as claimed in claim 1, wherein: the communication port includes a first region provided on a wall of the recessed portion.
10. A micro-speaker as claimed in claim 9, wherein: the communication port further comprises a second area arranged on the magnetic conduction support, and the second area is communicated with the first area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322174404.XU CN220606074U (en) | 2023-08-11 | 2023-08-11 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322174404.XU CN220606074U (en) | 2023-08-11 | 2023-08-11 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220606074U true CN220606074U (en) | 2024-03-15 |
Family
ID=90175023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322174404.XU Active CN220606074U (en) | 2023-08-11 | 2023-08-11 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220606074U (en) |
-
2023
- 2023-08-11 CN CN202322174404.XU patent/CN220606074U/en active Active
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