CN219876094U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN219876094U CN219876094U CN202320976522.XU CN202320976522U CN219876094U CN 219876094 U CN219876094 U CN 219876094U CN 202320976522 U CN202320976522 U CN 202320976522U CN 219876094 U CN219876094 U CN 219876094U
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- CN
- China
- Prior art keywords
- voice coil
- framework
- magnetic structure
- micro
- speaker
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- 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.)
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- 239000012528 membrane Substances 0.000 claims description 6
- 230000010287 polarization Effects 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
Abstract
The utility model discloses a miniature loudspeaker, which comprises a basin frame, a voice coil, a vibrating diaphragm assembly, a framework, a magnetic circuit assembly, a supporting assembly and a vibrating diaphragm assembly, wherein the vibrating diaphragm assembly is connected with the basin frame and the voice coil; the framework is positioned at the corner of the voice coil and is connected with the voice coil; the support component is connected with the basin stand and the framework; the magnetic circuit assembly comprises a yoke, a central magnetic structure and a side magnetic structure, wherein the central magnetic structure and the side magnetic structure are respectively arranged on the yoke, a magnetic gap for the voice coil to move is formed between the central magnetic structure and the side magnetic structure, the side magnetic structure is provided with a through groove communicated with the magnetic gap, and at least part of the area of the framework is positioned in the through groove. The skeleton is additionally arranged at the corner of the voice coil, the voice coil and the supporting component are indirectly connected by the skeleton, the problem that the supporting force of the supporting component is insufficient due to overlarge span of the supporting component is solved, the polarization and rolling vibration phenomena of the supporting component are effectively improved, the acoustic performance of the miniature loudspeaker is improved, and the use experience of a user is enhanced.
Description
Technical Field
The utility model relates to the technical field of electroacoustic transducers, in particular to a miniature loudspeaker.
Background
The micro-speaker is widely applied to portable electronic devices such as mobile phones, notebook computers, hearing aids and the like. With the rapid development of these portable electronic devices, the requirements of micro electroacoustic devices applied therein are also increasing, and the speakers and receivers used are becoming popular as large-amplitude speakers or super-linear speakers.
In order to improve the rolling vibration and polarization phenomena of the voice coil in the large-amplitude loudspeaker/super-linear loudspeaker product, a support assembly for connecting the basin frame and the voice coil is arranged in part of the micro-loudspeakers, wherein the support assembly comprises a centering support sheet and/or a secondary membrane, and the centering support sheet is made of materials including but not limited to FPC.
When the inner and outer widths of the edge magnetic steel in the micro-speaker are wider (for example, when a small-size voice coil is used), the span between one end of the support assembly connected with the basin frame and the voice coil is too large, the cantilever of the centering support piece can be pulled too long, the vibration amplitude of the cantilever is increased (and/or the auxiliary film is synchronously elongated and heightened), the supporting strength of the support assembly can be affected undoubtedly, and then the product is easy to roll, vibrate and polarize, and the use of consumers is affected.
Disclosure of Invention
The utility model mainly aims to provide a miniature loudspeaker with a novel structure, and aims to solve the problems that the existing miniature loudspeaker is easy to generate rolling vibration and polarization.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
a basin stand;
a voice coil;
the vibrating diaphragm assembly is connected with the basin frame and the voice coil;
the framework is positioned at the corner of the voice coil and is connected with the voice coil;
the support component is connected with the basin frame and the framework;
the magnetic circuit assembly comprises a yoke, a central magnetic structure and a side magnetic structure, wherein the central magnetic structure and the side magnetic structure are respectively arranged on the yoke, a magnetic gap for the voice coil to move is formed between the central magnetic structure and the side magnetic structure, the side magnetic structure is provided with a through groove communicated with the magnetic gap, and at least part of the area of the framework is positioned in the through groove.
In one embodiment, the connection between the frame and the support assembly is located at one end of the frame.
In one embodiment, the frame is connected to an outer wall surface of the voice coil.
In one embodiment, the armature comprises an extension arm and a mounting arm that are vertically connected, the extension arm being connected to the support assembly, the mounting arm being connected to the voice coil.
In one embodiment, the frame is connected to the bottom surface of the voice coil.
In one embodiment, the support assembly includes a centering tab or secondary membrane.
In one embodiment, an end of the armature remote from the voice coil is located above or below the support assembly.
In one embodiment, the support assembly comprises a centering support piece and a secondary membrane which are connected and fixed with each other, and one end of the framework, which is far away from the voice coil, is positioned above the support assembly; or, one end of the framework away from the voice coil is positioned below the supporting component; or, one end of the framework far away from the voice coil is positioned between the centering support piece and the framework.
In one embodiment, the side magnetic structure is provided with an extension part extending towards the direction approaching to the framework at the position of the through groove.
In one embodiment, the extension has a first plane parallel to a side of the armature proximate the extension.
The utility model has the beneficial effects that: the skeleton is additionally arranged at the corner of the voice coil, the voice coil and the supporting component are indirectly connected by the skeleton, the problem that the supporting force of the supporting component is insufficient due to overlarge span of the supporting component is solved, the polarization and rolling vibration phenomena of the supporting component are effectively improved, the acoustic performance of the miniature loudspeaker is improved, and the use experience of a user 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 schematic structural diagram of an internal structure of a micro-speaker according to a first embodiment of the present utility model;
fig. 2 is a schematic structural diagram of an internal structure of a micro-speaker according to an embodiment of the present utility model at another view angle.
Reference numerals illustrate:
1. a basin stand;
2. a support assembly;
3. a voice coil;
4. a skeleton; 41. an extension arm; 42. a mounting arm;
5. a yoke;
6. a central magnetic structure;
7. a side magnetic assembly; 71. an extension; 711. a first plane;
81. a magnetic gap; 82. and (5) passing through the groove.
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 the present utility model, 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
Referring to fig. 1 and 2, a first embodiment of the utility model is as follows: a micro loudspeaker can be widely applied to electronic equipment such as mobile phones, notebook computers, hearing aids and the like.
The miniature loudspeaker comprises a basin frame 1, a supporting component 2, and a vibration component and a magnetic circuit component which are respectively arranged on the basin frame 1, wherein the vibration component comprises a vibrating diaphragm component, a voice coil 3 and a framework 4, the vibrating diaphragm component is connected with the basin frame 1 and the voice coil 3, the framework 4 is positioned at the corner of the voice coil 3, and the framework 4 is connected with the voice coil 3; the support component 2 is connected with the basin frame 1 and the framework 4; the magnetic circuit assembly comprises a yoke 5, a central magnetic structure 6 and a side magnetic structure, wherein the central magnetic structure 6 and the side magnetic structure are respectively arranged on the yoke 5, a magnetic gap 81 for the voice coil 3 to move is formed between the central magnetic structure 6 and the side magnetic structure, the side magnetic structure is provided with a through groove 82 communicated with the magnetic gap 81, and at least part of the area of the framework 4 is positioned in the through groove 82.
The voice coil 3 is in a rectangular frame shape as a whole, and the four corners of the voice coil 3 are respectively provided with the framework 4.
The framework 4 is made of a material with high hardness, and the framework 4 can be made of metal, such as steel, or nonmetal, such as carbon fiber.
The connection between the frame 4 and the support assembly 2 is located at one end of the frame 4, the other end of the frame 4 is connected with the outer wall surface of the voice coil 3, and the connection between the frame 4 and the voice coil 3 is located at the middle and/or bottom of the outer wall surface of the voice coil 3, which is, of course, also possible that the frame 4 is connected with the upper, middle and lower parts of the outer wall surface of the voice coil 3 at the same time. The framework 4 is connected with the outer wall surface of the voice coil 3, so that the voice coil 3 has enough lower vibration space, and the miniature loudspeaker cannot reduce the amplitude due to the addition of the framework 4.
In this embodiment, the frame 4 includes an extension arm 41 and a mounting arm 42 that are vertically connected, that is, the frame 4 is L-shaped overall, one end of the extension arm 41, which is far away from the mounting arm 42, is connected to the support assembly 2, and the mounting arm 42 is connected to the voice coil 3. The mounting arm 42 and the voice coil 3 have a larger contact area, so that the frame 4 and the voice coil 3 can be firmly bonded and fixed. In other embodiments, the frame 4 may be connected to the bottom surface of the voice coil 3.
In other embodiments, the support assembly 2 includes one of a centering support and a secondary membrane, and at this time, an end of the frame 4 away from the voice coil 3 is located above or below the support assembly 2, that is, a bottom surface or a top surface of the frame 4 is adhesively fixed to the support assembly 2.
However, in order to ensure that the support assembly 2 can provide a sufficient supporting force, in this embodiment, the support assembly 2 includes a centering support and a secondary membrane that are fixedly connected to each other, and an end of the frame 4 away from the voice coil 3 is located above the support assembly 2. Of course, in some embodiments, the end of the armature 4 remote from the voice coil 3 is located below the support assembly 2; alternatively, the end of the frame 4 away from the voice coil 3 may be located between the centering disc and the frame 4, and may be specifically set as required.
In detail, the central magnetic structure 6 comprises a central magnetic steel and a central washer, the top surface of the central magnetic steel is connected with the central washer, and the bottom surface of the central magnetic steel is connected with the yoke 5; the side magnetic steel comprises four side magnetic components 7, the four side magnetic components 7 are arranged around the central magnetic structure 6, a magnetic gap 81 is formed between the side magnetic components 7 and the central magnetic structure 6, a through groove 82 is formed between two adjacent side magnetic components 7, the side magnetic components 7 comprise side magnetic steel and Bian Huasi, the top surfaces of the side magnetic steel are connected with Bian Huasi, and the bottom surfaces of the side magnetic steel are connected with the yoke 5.
The side magnetic structure is provided with an extension part 71 extending towards the direction close to the framework 4 at the position of the through groove 82, and the existence of the extension part 71 can increase the whole volume of the side magnetic steel and Bian Huasi, so that the magnetic field intensity of the micro-speaker is further improved, and the product performance of the micro-speaker is improved.
In order to increase the volume of the extension 71 as much as possible, it is preferable that the extension 71 has a first plane 711, and the first plane 711 is parallel to a side of the frame 4 adjacent to the extension 71.
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;
a voice coil;
the vibrating diaphragm assembly is connected with the basin frame and the voice coil;
the framework is positioned at the corner of the voice coil and is connected with the voice coil;
the support component is connected with the basin frame and the framework;
the magnetic circuit assembly comprises a yoke, a central magnetic structure and a side magnetic structure, wherein the central magnetic structure and the side magnetic structure are respectively arranged on the yoke, a magnetic gap for the voice coil to move is formed between the central magnetic structure and the side magnetic structure, the side magnetic structure is provided with a through groove communicated with the magnetic gap, and at least part of the area of the framework is positioned in the through groove.
2. A micro-speaker as claimed in claim 1, wherein: the connection of the framework and the supporting component is positioned at one end of the framework.
3. A micro-speaker as claimed in claim 1, wherein: the framework is connected with the outer wall surface of the voice coil.
4. A micro-speaker as claimed in claim 3, wherein: the framework comprises an extension arm and a mounting arm which are vertically connected, the extension arm is connected with the supporting component, and the mounting arm is connected with the voice coil.
5. A micro-speaker as claimed in claim 1, wherein: the framework is connected with the bottom surface of the voice coil.
6. A micro-speaker as claimed in claim 1, wherein: the support assembly includes a centering tab or secondary membrane.
7. A micro-speaker as claimed in claim 6, wherein: one end of the framework, which is far away from the voice coil, is positioned above or below the supporting component.
8. A micro-speaker as claimed in claim 1, wherein: the support assembly comprises a centering support piece and an auxiliary film which are mutually connected and fixed, and one end of the framework, which is far away from the voice coil, is positioned above the support assembly; or, one end of the framework away from the voice coil is positioned below the supporting component; or, one end of the framework far away from the voice coil is positioned between the centering support piece and the framework.
9. A micro-speaker as claimed in claim 1, wherein: the side magnetic structure is provided with an extension part extending towards the direction close to the framework at the position of the through groove.
10. A micro-speaker as claimed in claim 9, wherein: the extension has a first plane parallel to a side of the skeleton adjacent the extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976522.XU CN219876094U (en) | 2023-04-20 | 2023-04-20 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976522.XU CN219876094U (en) | 2023-04-20 | 2023-04-20 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219876094U true CN219876094U (en) | 2023-10-20 |
Family
ID=88330878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976522.XU Active CN219876094U (en) | 2023-04-20 | 2023-04-20 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219876094U (en) |
-
2023
- 2023-04-20 CN CN202320976522.XU patent/CN219876094U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |