CN221240499U - Micro-speaker, speaker module and terminal equipment - Google Patents
Micro-speaker, speaker module and terminal equipment Download PDFInfo
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- CN221240499U CN221240499U CN202323138176.7U CN202323138176U CN221240499U CN 221240499 U CN221240499 U CN 221240499U CN 202323138176 U CN202323138176 U CN 202323138176U CN 221240499 U CN221240499 U CN 221240499U
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- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 239000012528 membrane Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052742 iron Inorganic materials 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a micro-speaker, a speaker module and terminal equipment, wherein the micro-speaker comprises a vibrating diaphragm assembly, a magnetic circuit assembly and two voice coils, and the two voice coils are arranged at intervals up and down; the magnetic circuit assembly comprises a magnetic conduction piece, the magnetic conduction piece comprises a supporting part connected with the vibrating diaphragm assembly, first connecting arms are arranged at two ends of the supporting part and are connected with a first mounting plate, first magnetic structures are mounted on the top surface and the bottom surface of the first mounting plate, second connecting arms are arranged at two sides of the supporting part and are connected with a second mounting plate, and second magnetic structures are mounted on the top surface and the bottom surface of the second mounting plate; the first mounting plate and the second mounting plate are arranged corresponding to a gap between the two voice coils, the voice coils are in an I-shaped frame shape, and the voice coils surround the first magnetic structure and pass through the inner side of the second magnetic structure. The miniature loudspeaker is of a moving iron type structure, novel in structure, good in bass sensitivity and good in acoustic performance.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker, a loudspeaker module and terminal equipment.
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 utility model mainly aims to provide a moving iron type micro-speaker with a novel structure, a speaker module with the micro-speaker and terminal equipment, and aims to solve the problem that the acoustic performance of the existing moving iron type micro-speaker is poor.
In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows: a micro-speaker, comprising:
A basin stand;
the two voice coils are fixedly arranged in the basin frame and are arranged at intervals up and down;
The yoke is connected to the bottom of the basin frame;
The vibrating diaphragm assembly is connected to the top of the basin frame;
The magnetic circuit assembly is positioned in the basin frame and comprises a magnetic conduction piece, the magnetic conduction piece comprises a supporting part connected with the vibrating diaphragm assembly, two ends of the supporting part are respectively provided with a first connecting arm extending towards the direction close to the yoke, the bottom end of the first connecting arm is connected with a first mounting plate, the top surface and the bottom surface of the first mounting plate are respectively provided with a first magnetic structure, two sides of the supporting part are respectively provided with a second connecting arm extending towards the direction close to the yoke, the bottom end of the second connecting arm is connected with a second mounting plate, and the top surface and the bottom surface of the second mounting plate are respectively provided with a second magnetic structure;
The first mounting plate and the second mounting plate are arranged corresponding to gaps between the two voice coils, the voice coils are in an I-shaped frame shape, and the voice coils surround the first magnetic structure and pass through the inner side of the second magnetic structure.
In an embodiment, the first mounting plate and the second mounting plate are parallel to the support portion.
In one embodiment, the first mounting plate is disposed flush with the second mounting plate.
In an embodiment, the support portion, the first connecting arm, the second connecting arm, the first mounting plate and the second mounting plate are integrally formed as a one-piece structure.
In one embodiment, a partial region of the voice coil located at the upper layer passes through a gap between the second connection arm and the second magnetic structure.
In an embodiment, the first magnetic structure includes a first magnetic steel and a first washer, the first magnetic steel is connected to the first mounting plate, and the first washer is mounted on a surface of the first magnetic steel away from the first mounting plate.
In an embodiment, the second magnetic structure includes a second magnetic steel and a second washer, the second magnetic steel is connected to the second mounting plate, and the second washer is mounted on a surface of the second magnetic steel away from the second mounting plate.
In an embodiment, the vibrating diaphragm assembly comprises a sound membrane and a dome arranged in the central area of the sound membrane, the sound membrane is connected with the basin stand, and the supporting part is connected with the central area of the vibrating diaphragm assembly.
In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows: the loudspeaker module comprises the micro loudspeaker.
In order to solve the technical problems, the third technical scheme adopted by the utility model is as follows: and the terminal equipment comprises the micro loudspeaker.
The utility model has the beneficial effects that: the miniature loudspeaker is of a moving iron type structure, is novel in structure, and the double-voice coil structure is matched with a multi-magnetic circuit structure, so that the BL value of the miniature loudspeaker is effectively improved, the bass sensitivity is improved, and the tone quality and the hearing of the miniature loudspeaker are improved. In addition, the voice coil has an i-shaped frame shape, and a longer length than a conventional rectangular frame-shaped voice coil, so that the acoustic performance of the micro-speaker is improved to a greater extent.
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 second cross-sectional view of a micro-speaker according to a first embodiment of the present utility model;
fig. 4 is a schematic diagram of an internal structure of a micro-speaker according to a first embodiment of the present utility model.
Reference numerals illustrate:
1. A basin stand; 11. a fixing part;
2. a yoke;
3. a diaphragm assembly; 31. a sound membrane; 32. a dome;
4. A voice coil;
5. A magnetic conductive member; 51. a support part; 52. a first connecting arm; 53. a second connecting arm; 54. a first mounting plate; 55. a second mounting plate;
6. A first magnetic structure;
7. a second magnetic structure.
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 4, a first embodiment of the present utility model is as follows: a miniature loudspeaker comprises a basin frame 1, a yoke 2, a vibrating diaphragm assembly 3, a magnetic circuit assembly and two voice coils 4, wherein the two voice coils 4 are fixedly arranged in the basin frame 1 and are arranged at intervals up and down, that is, the two voice coils 4 are provided with gaps in the thickness direction of the miniature loudspeaker; the yoke 2 is connected to the bottom of the basin frame 1, and the vibrating diaphragm assembly 3 is connected to the top of the basin frame 1;
The magnetic circuit assembly is positioned in the basin frame 1, the magnetic circuit assembly comprises a magnetic conduction piece 5, the magnetic conduction piece 5 comprises a supporting part 51 connected with the vibrating diaphragm assembly 3, two ends of the supporting part 51 are respectively provided with a first connecting arm 52 extending towards the direction close to the yoke 2, the bottom end of the first connecting arm 52 is connected with a first mounting plate 54, the top surface and the bottom surface of the first mounting plate 54 are respectively provided with a first magnetic structure 6, two sides of the supporting part 51 are respectively provided with a second connecting arm 53 extending towards the direction close to the yoke 2, the bottom end of the second connecting arm 53 is connected with a second mounting plate 55, and the top surface and the bottom surface of the second mounting plate 55 are respectively provided with a second magnetic structure 7;
The first mounting plate 54 and the second mounting plate 55 are disposed corresponding to the gap between the two voice coils 4, the voice coils 4 are in an i-frame shape, the voice coils 4 surround the first magnetic structure 6 and pass through the inner side of the second magnetic structure 7, specifically, a partial region of the voice coils 4 located at the upper layer passes through the gap between the second connecting arm 53 and the second magnetic structure 7.
In this embodiment, the frame 1 has a fixing portion 11 for fixing at least one of the voice coils 4, and the fixing portion 11 is located between two of the voice coils 4, that is, the fixing portion 11 is at least partially located in the gap between two of the voice coils 4. In the actual product, the voice coil 4 positioned at the lower layer can be fixedly connected with the basin frame 1 and/or the yoke 2.
The first mounting plate 54 and the second mounting plate 55 are parallel to the supporting portion 51. Preferably, the first mounting plate 54 is flush with the second mounting plate 55.
In order to simplify the structure of the micro-speaker and facilitate the processing and assembly of the micro-speaker, in this embodiment, the support portion 51, the first connecting arm 52, the second connecting arm 53, the first mounting plate 54 and the second mounting plate 55 are integrally formed as a one-piece structure.
The first magnetic structure 6 comprises first magnetic steel and a first washer, the first magnetic steel is connected with the first mounting plate 54, and the first washer is mounted on the surface, away from the first mounting plate 54, of the first magnetic steel. The second magnetic structure 7 comprises second magnetic steel and a second washer, the second magnetic steel is connected with the second mounting plate 55, and the second washer is mounted on the surface, away from the second mounting plate 55, of the second magnetic steel.
The vibrating diaphragm assembly 3 comprises a sound diaphragm 31 and a dome 32 arranged in the central area of the sound diaphragm 31, the sound diaphragm 31 is connected with the basin frame 1, and the supporting part 51 is connected with the central area of the vibrating diaphragm assembly 3. The connection part between the supporting part 51 and the diaphragm assembly 3 is arranged corresponding to the dome 32, which is beneficial to improving the structural stability of the micro-speaker. In detail, the area of the dome 32 is larger than the area of the top surface of the supporting portion 51, and the dome 32 can disperse the overall weight of the magnetic conductive member 5, so as to reduce the risk of collapse of the diaphragm assembly 3.
The embodiment also provides a speaker module, which comprises a module housing and the micro speaker arranged in the module housing.
The embodiment also provides a terminal device, which includes the micro speaker, and the terminal device may be an electronic product capable of emitting sound, such as a mobile phone, a tablet computer, a smart watch, and the like.
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 basin stand;
the two voice coils are fixedly arranged in the basin frame and are arranged at intervals up and down;
The yoke is connected to the bottom of the basin frame;
The vibrating diaphragm assembly is connected to the top of the basin frame;
The magnetic circuit assembly is positioned in the basin frame and comprises a magnetic conduction piece, the magnetic conduction piece comprises a supporting part connected with the vibrating diaphragm assembly, two ends of the supporting part are respectively provided with a first connecting arm extending towards the direction close to the yoke, the bottom end of the first connecting arm is connected with a first mounting plate, the top surface and the bottom surface of the first mounting plate are respectively provided with a first magnetic structure, two sides of the supporting part are respectively provided with a second connecting arm extending towards the direction close to the yoke, the bottom end of the second connecting arm is connected with a second mounting plate, and the top surface and the bottom surface of the second mounting plate are respectively provided with a second magnetic structure;
The first mounting plate and the second mounting plate are arranged corresponding to gaps between the two voice coils, the voice coils are in an I-shaped frame shape, and the voice coils surround the first magnetic structure and pass through the inner side of the second magnetic structure.
2. A micro-speaker as claimed in claim 1, wherein: the first mounting plate and the second mounting plate are parallel to the supporting part.
3. A micro-speaker as claimed in claim 2, wherein: the first mounting plate is flush with the second mounting plate.
4. A micro-speaker as claimed in claim 1, wherein: the supporting part, the first connecting arm, the second connecting arm, the first mounting plate and the second mounting plate are integrally formed into an integral structure.
5. A micro-speaker as claimed in claim 1, wherein: a partial region of the voice coil located at the upper layer passes through a gap between the second connection arm and the second magnetic structure.
6. A micro-speaker as claimed in claim 1, wherein: the first magnetic structure comprises first magnetic steel and a first washer, the first magnetic steel is connected with the first mounting plate, and the first washer is mounted on the surface, away from the first mounting plate, of the first magnetic steel.
7. A micro-speaker as claimed in claim 1, wherein: the second magnetic structure comprises second magnetic steel and a second washer, the second magnetic steel is connected with the second mounting plate, and the second washer is mounted on the surface, away from the second mounting plate, of the second magnetic steel.
8. A micro-speaker as claimed in claim 1, wherein: the vibrating diaphragm assembly comprises a sound membrane and a ball top arranged in the central area of the sound membrane, the sound membrane is connected with the basin stand, and the supporting part is connected with the central area of the vibrating diaphragm assembly.
9. Speaker module, its characterized in that: comprising a micro-speaker according to any of claims 1-8.
10. Terminal equipment, its characterized in that: comprising a micro-speaker according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323138176.7U CN221240499U (en) | 2023-11-20 | 2023-11-20 | Micro-speaker, speaker module and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323138176.7U CN221240499U (en) | 2023-11-20 | 2023-11-20 | Micro-speaker, speaker module and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221240499U true CN221240499U (en) | 2024-06-28 |
Family
ID=91592660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323138176.7U Active CN221240499U (en) | 2023-11-20 | 2023-11-20 | Micro-speaker, speaker module and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221240499U (en) |
-
2023
- 2023-11-20 CN CN202323138176.7U patent/CN221240499U/en active Active
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