CN223231313U - A miniature speaker - Google Patents
A miniature speakerInfo
- Publication number
- CN223231313U CN223231313U CN202422291581.0U CN202422291581U CN223231313U CN 223231313 U CN223231313 U CN 223231313U CN 202422291581 U CN202422291581 U CN 202422291581U CN 223231313 U CN223231313 U CN 223231313U
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- CN
- China
- Prior art keywords
- magnetic steel
- speaker
- micro
- fixing portion
- box body
- 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.)
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
本实用新型公开了一种微型扬声器，包括盒体、振膜组件、弹性骨架、音圈、定心支片及两组磁钢组件，盒体的顶部和底部分别设有开窗；盒体的顶部和底部分别设有振膜组件，振膜组件封闭开窗；磁钢组件设于盒体内，两组磁钢组件分别靠近盒体的两端设置，每组磁钢组件均包括磁极朝向相反的上磁钢与下磁钢，上磁钢与下磁钢之间形成磁间隙；弹性骨架包括环形变形体和安装臂，环形变形体连接两个振膜组件，环形变形体的两侧分别连接有安装臂，安装臂远离环形变形体的一端伸入磁间隙中；每个安装臂上分别缠绕有音圈；定心支片包括依次相连的内固定部、悬臂部和外固定部，内固定部连接安装臂，外固定部连接盒体。本微型扬声器结构简单新颖，性能优异。
The utility model discloses a micro-speaker comprising a housing, a diaphragm assembly, an elastic frame, a voice coil, a centering support, and two sets of magnetic steel assemblies. The housing has windows at the top and bottom, respectively. The diaphragm assembly is provided at the top and bottom of the housing, respectively, and the windows are enclosed by the diaphragm assembly. The magnetic steel assembly is disposed within the housing, with the two sets of magnetic steel assemblies positioned near each end of the housing. Each set of magnetic steel assemblies includes an upper magnet and a lower magnet with opposite magnetic poles, forming a magnetic gap between the upper and lower magnets. The elastic frame includes an annular deformable body and mounting arms, connecting the two diaphragm assemblies. Mounting arms are connected to both sides of the annular deformable body, with the ends of the mounting arms distal to the annular deformable body extending into the magnetic gap. A voice coil is wound around each mounting arm. The centering support comprises an inner fixing portion, a cantilever portion, and an outer fixing portion connected in sequence. The inner fixing portion is connected to the mounting arm, and the outer fixing portion is connected to the housing. This micro-speaker has a simple and novel structure and excellent performance.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker.
Background
Currently, a micro speaker plays an indispensable role as an audio device in mobile terminals such as mobile phones, tablet computers, and the like. With the development of the times, consumers have higher and higher requirements on the tone quality and the loudness of the whole machine, and the performance of the micro-speaker is required to be further improved, so that the micro-speaker with double-sided vibration sounding appears on the market, but the existing micro-speaker with double-sided vibration sounding has the problems of numerous component parts and complex structure.
Disclosure of utility model
The utility model solves the technical problem of providing the high-performance micro-speaker with a simple structure.
In order to solve the technical problems, the technical scheme adopted by the utility model is that the miniature loudspeaker comprises:
The box body is provided with windows at the top and the bottom respectively;
The vibrating diaphragm assembly is arranged at the top and the bottom of the box body respectively, and the vibrating diaphragm assembly seals the open window;
The two groups of magnetic steel components are arranged in the box body, the two groups of magnetic steel components are respectively arranged close to two ends of the box body, each group of magnetic steel components comprises upper magnetic steel and lower magnetic steel with opposite magnetic pole directions, and a magnetic gap is formed between the upper magnetic steel and the lower magnetic steel;
The elastic framework comprises an annular deformation body and mounting arms, the annular deformation body is connected with the two vibrating diaphragm assemblies, the mounting arms are respectively connected to two sides of the annular deformation body, and one end, far away from the annular deformation body, of each mounting arm stretches into the magnetic gap;
the voice coils are respectively wound on each mounting arm;
The centering support piece comprises an inner fixing portion, a cantilever portion and an outer fixing portion which are sequentially connected, wherein the inner fixing portion is connected with the mounting arm, and the outer fixing portion is connected with the box body.
In one embodiment, the mounting arms on either side of the annular deformation body are arranged coplanar.
In an embodiment, the annular deformation body comprises two arc-shaped arms which are oppositely arranged, the mounting arms are connected with the arc-shaped arms, the top ends of the two arc-shaped arms are connected through an upper flat plate part, the upper flat plate part is connected with the vibrating diaphragm assembly positioned at the top of the box body, the bottom ends of the two arc-shaped arms are connected through a lower flat plate part, and the lower flat plate part is connected with the vibrating diaphragm assembly positioned at the bottom of the box body.
In one embodiment, the connection between the mounting arm and the arc arm is located in the middle of the arc arm.
In an embodiment, the elastic framework is an integrally formed one-piece structure.
In an embodiment, the elastic framework is made of metal or plastic.
In an embodiment, the window at the top of the box body is opposite to the window at the bottom of the box body.
In an embodiment, the centering support piece is electrically connected with the voice coil.
In an embodiment, in the centering support, two sides of the inner fixing portion are respectively connected with the cantilever portion, and the cantilever portion is located in a gap between the magnetic steel assembly and the box body.
In an embodiment, the top end and the bottom end of the external fixing portion are both connected to the case.
The miniature loudspeaker has the beneficial effects that the miniature loudspeaker is simple and novel in structure, few in component parts, convenient to produce and manufacture, large in total volume of internal magnetic steel, and capable of enabling all areas of the voice coil to be in an effective magnetic gap, so that the miniature loudspeaker has a very high BL value, and therefore, the miniature loudspeaker has excellent performance and is optimized in hearing.
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.
Reference numerals illustrate:
1. a case body;
2. a diaphragm assembly;
3. Elastic framework, 31, annular deformation body, 311, arc-shaped arm, 312, upper plate part, 313, lower plate part, 32, mounting arm;
4. A voice coil;
5. centering support piece, 51, inner fixing part, 52, cantilever part, 53, outer fixing part;
6. The magnetic steel assembly comprises 61, upper magnetic steel and 62, lower magnetic steel.
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 correspondingly changed.
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, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between 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 and 2, in a first embodiment of the present utility model, a micro speaker includes a box body 1, a diaphragm assembly 2, an elastic framework 3, a voice coil 4, a centering support 5, and two sets of magnetic steel assemblies 6, wherein the top and the bottom of the box body 1 are respectively provided with a window, preferably the window at the top of the box body 1 is opposite to the window at the bottom of the box body 1, the top and the bottom of the box body 1 are respectively provided with the diaphragm assembly 2, the diaphragm assembly 2 closes the window, the magnetic steel assemblies 6 are disposed in the box body 1, the two sets of magnetic steel assemblies 6 are respectively disposed near two ends of the box body 1, each set of magnetic steel assemblies 6 includes an upper magnetic steel 61 and a lower magnetic steel 62 with opposite magnetic poles, a magnetic gap is formed between the upper magnetic steel 61 and the lower magnetic steel 62, the elastic framework 3 includes an annular deformation body 31 and a mounting arm 32, two sides of the annular deformation body 31 are respectively connected with the mounting arm 32, the two sets of magnetic steel assemblies are respectively connected with the mounting arm 32, the inner end of the annular deformation body 31 is respectively provided with the inner end 53 and the inner end 53 of the mounting arm 52 is respectively, and the inner end 53 is respectively connected with the inner end 53 of the annular deformation body is fixed.
When the miniature loudspeaker works, the voice coil 4 drives the mounting arms 32 to move along the X-axis direction, and the moving directions of the two mounting arms 32 are opposite, so that the annular deformation body 31 deforms, and then the vibrating diaphragm assembly 2 is driven to move along the Z-axis direction, and the vibration sounding effect is achieved.
In this embodiment, the magnetic poles of the upper magnetic steels 61 in the two sets of magnetic steel assemblies 6 face opposite directions. In detail, in the same set of the magnetic steel assemblies 6, when one end of the upper magnetic steel 61 close to the lower magnetic steel 62 is N-pole, one end of the lower magnetic steel 62 close to the upper magnetic steel 61 is S-pole, and when one end of the upper magnetic steel 61 close to the lower magnetic steel 62 is S-pole, one end of the lower magnetic steel 62 close to the upper magnetic steel 61 is N-pole, and in different sets of the magnetic steel assemblies 6, one end of the upper magnetic steel 61 close to the corresponding magnetic gap is N-pole, and one end of the other upper magnetic steel 61 close to the corresponding magnetic gap is S-pole.
As a preferred embodiment, the centering support 5 is an FPC board, the centering support 5 is electrically connected to the voice coil 4, and an external power supply supplies power to the voice coil 4 through the centering support 5.
In order to make the annular deformation body 31 more balanced in stress, the mounting arms 32 on both sides of the annular deformation body 31 are arranged coplanar. In this embodiment, the annular deformation body 31 includes two arc-shaped arms 311 that are oppositely disposed, the mounting arm 32 is connected to the arc-shaped arms 311, the top ends of the two arc-shaped arms 311 are connected through an upper plate portion 312, the upper plate portion 312 is connected to the diaphragm assembly 2 that is located at the top of the box body 1, the bottom ends of the two arc-shaped arms 311 are connected through a lower plate portion 313, the lower plate portion 313 is connected to the diaphragm assembly 2 that is located at the bottom of the box body 1, and preferably, the connection portion between the mounting arm 32 and the arc-shaped arms 311 is located at the middle of the arc-shaped arms 311.
For convenient manufacturing of the elastic framework 3 and control of manufacturing cost thereof, the elastic framework 3 is of an integrated structure formed by integrated processing, the elastic framework 3 is easy to deform and has a good stretching rate, and the elastic framework 3 can be made of metal or plastic, and can be specifically selected according to actual needs.
The number of the centering support pieces 5 is two, the two centering support pieces 5 are in one-to-one correspondence with the two mounting arms 32, and in a preferred embodiment, in the centering support piece 5, two sides of the inner fixing portion 51 are respectively connected with the cantilever portions 52, and the cantilever portions 52 are located in a gap between the magnetic steel assembly 6 and the box body 1.
The top and bottom ends of the outer fixing portion 53 are connected to the case 1. In this embodiment, the centering support 5 is substantially i-shaped.
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 micro speaker is characterized by comprising
The box body is provided with windows at the top and the bottom respectively;
The vibrating diaphragm assembly is arranged at the top and the bottom of the box body respectively, and the vibrating diaphragm assembly seals the open window;
The two groups of magnetic steel components are arranged in the box body, the two groups of magnetic steel components are respectively arranged close to two ends of the box body, each group of magnetic steel components comprises upper magnetic steel and lower magnetic steel with opposite magnetic pole directions, and a magnetic gap is formed between the upper magnetic steel and the lower magnetic steel;
The elastic framework comprises an annular deformation body and mounting arms, the annular deformation body is connected with the two vibrating diaphragm assemblies, the mounting arms are respectively connected to two sides of the annular deformation body, and one end, far away from the annular deformation body, of each mounting arm stretches into the magnetic gap;
the voice coils are respectively wound on each mounting arm;
The centering support piece comprises an inner fixing portion, a cantilever portion and an outer fixing portion which are sequentially connected, wherein the inner fixing portion is connected with the mounting arm, and the outer fixing portion is connected with the box body.
2. The micro-speaker of claim 1, wherein the mounting arms on opposite sides of the annular deformation body are arranged coplanar.
3. The micro-speaker of claim 1, wherein the annular deformable body comprises two arc arms arranged oppositely, the mounting arms are connected with the arc arms, the top ends of the two arc arms are connected through an upper flat plate part, the upper flat plate part is connected with the diaphragm assembly positioned at the top of the box body, the bottom ends of the two arc arms are connected through a lower flat plate part, and the lower flat plate part is connected with the diaphragm assembly positioned at the bottom of the box body.
4. The micro-speaker of claim 3, wherein the connection between the mounting arm and the arc arm is located in the middle of the arc arm.
5. The micro-speaker of claim 1, wherein the elastic skeleton is an integrally formed one-piece structure.
6. The micro-speaker of claim 5, wherein the elastic skeleton is made of metal or plastic.
7. The micro-speaker of claim 1, wherein the top window of the case is disposed opposite the bottom window of the case.
8. The micro-speaker of claim 1, wherein the centering pad is electrically connected to the voice coil.
9. The micro-speaker of claim 1, wherein the cantilever portions are connected to both sides of the inner fixing portion in the centering support, respectively, and the cantilever portions are located in a gap between the magnetic steel assembly and the case.
10. The micro-speaker of claim 9, wherein the top and bottom ends of the outer fixing portion are connected to the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422291581.0U CN223231313U (en) | 2024-09-19 | 2024-09-19 | A miniature speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422291581.0U CN223231313U (en) | 2024-09-19 | 2024-09-19 | A miniature speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223231313U true CN223231313U (en) | 2025-08-15 |
Family
ID=96691321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422291581.0U Active CN223231313U (en) | 2024-09-19 | 2024-09-19 | A miniature speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223231313U (en) |
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2024
- 2024-09-19 CN CN202422291581.0U patent/CN223231313U/en active Active
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