CN219876091U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
- Publication number
- CN219876091U CN219876091U CN202320923150.4U CN202320923150U CN219876091U CN 219876091 U CN219876091 U CN 219876091U CN 202320923150 U CN202320923150 U CN 202320923150U CN 219876091 U CN219876091 U CN 219876091U
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- voice coil
- magnetic structure
- micro
- speaker
- assembly
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- 239000012528 membrane Substances 0.000 claims description 7
- 230000010287 polarization Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a miniature loudspeaker, which comprises a basin frame, a voice coil, a vibrating diaphragm assembly, a supporting assembly and a magnetic circuit assembly, wherein the voice coil is integrally in a rectangular frame shape, an outward protruding outer part is arranged at the corner of the voice coil, the vibrating diaphragm assembly is connected with the basin frame and the voice coil, the supporting assembly is connected with the basin frame and the outer part, the magnetic circuit assembly comprises a yoke, a central magnetic structure and a side magnetic structure which 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 outer part is positioned in the through groove. This miniature loudspeaker lets the bight of voice coil loudspeaker voice coil have outwards convex outer convex portion, and support assembly connects on the outer convex portion of voice coil loudspeaker voice coil, not only can increase the total length of voice coil loudspeaker voice coil, can also overcome support assembly and have rolled the phenomenon of shaking because of the too big problem that causes of self span, has improved support assembly polarization effectively, roll, does benefit to the acoustic performance that improves miniature loudspeaker, reinforcing user's use experience.
Description
Technical Field
The utility model relates to the technical field of electroacoustic converters, 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;
the voice coil is in a rectangular frame shape as a whole, and the corner part of the voice coil is provided with an outer convex part protruding outwards;
the vibrating diaphragm assembly is connected with the basin frame and the voice coil;
the support component is connected with the basin frame and the outer protruding part;
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 outer protruding part is positioned in the through groove.
In one embodiment, the outer flange is generally C-shaped.
In an embodiment, the side magnetic structure has an extension portion extending towards a direction close to the passing groove at the passing groove, and the extension portion has an arc-shaped avoidance opening for avoiding the outer protruding portion.
In an embodiment, a protruding portion is provided on a side of the extension portion, which is close to the central magnetic structure, and the protruding portion is disposed corresponding to a connection portion between a side of the voice coil and the outer protruding portion.
In one embodiment, at least a portion of the inner wall surface of the outer flange is adhesively secured to one another.
In one embodiment, the outer flange is adhesively secured to the support assembly.
In one embodiment, the bottom surface of the outer flange is bonded to the support assembly.
In one embodiment, the support assembly includes a centering tab or secondary membrane.
In one embodiment, the support assembly includes a centering support and a secondary membrane that are fixedly connected to each other.
In one embodiment, the outer protrusions are formed at four corners of the voice coil.
The utility model has the beneficial effects that: this miniature loudspeaker lets the bight of voice coil loudspeaker voice coil have outwards convex outer convex portion, and support assembly connects on the outer convex portion of voice coil loudspeaker voice coil, not only can increase the total length of voice coil loudspeaker voice coil, improves the L value of voice coil loudspeaker voice coil, can also overcome support assembly and because of the too big problem that causes the holding power of self span is not enough, has improved support assembly polarization, roll the phenomenon of vibrating effectively, does benefit to the acoustic performance that improves miniature loudspeaker, the use of reinforcing user experiences.
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; 31. an outer protruding portion;
4. a yoke;
5. a central magnetic structure;
6. a side magnetic structure; 61. an extension; 611. arc avoidance gap; 62. a protruding portion;
71. magnetic gap.
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 support assembly 2, and a vibration assembly and a magnetic circuit assembly which are respectively arranged on the basin frame 1, wherein the vibration assembly comprises a vibrating diaphragm assembly and a voice coil 3, the vibrating diaphragm assembly is connected with the basin frame 1 and the voice coil 3, the voice coil 3 is integrally in a rectangular frame shape, and the corner of the voice coil 3 is provided with an outer convex part 31 outwards; the support component 2 is connected with the basin frame 1 and the outer flange 31 of the framework; the magnetic circuit assembly comprises a yoke 4, a central magnetic structure 5 and a side magnetic structure 6 which are respectively arranged on the yoke 4, a magnetic gap 71 for the voice coil 3 to move is formed between the central magnetic structure 5 and the side magnetic structure 6, the side magnetic structure 6 is provided with a through groove communicated with the magnetic gap 71, and at least part of the area of the outer lug 31 is positioned in the through groove.
In detail, the central magnetic structure 5 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 4; the limit magnet steel includes four limit magnetic components, four limit magnetic components centers on center magnetic structure 5 sets up, limit magnetic components with form between the center magnetic structure 5 magnetic gap 71, two adjacent between the limit magnetic components form the groove, limit magnetic components includes limit magnet steel and Bian Huasi, the top surface of limit magnet steel is connected Bian Huasi, the bottom surface of limit magnet steel is connected yoke 4.
In order to make the stress of the voice coil 3 more balanced and thereby further improve the polarization of the voice coil 3, in this embodiment, the outer protrusions 31 are formed at four corners of the voice coil 3.
In this embodiment, the outer flange 31 is C-shaped as a whole.
In order to improve the magnetic field intensity of the micro-speaker, thereby further improving the acoustic performance of the micro-speaker, the side magnetic structure 6 is provided with an extension portion 61 which extends towards the direction close to the passing groove at the passing groove, the extension portion 61 is provided with an arc avoidance opening 611 for avoiding the outer flange 31, when the micro-speaker is overlooked, the radian of the wall surface of the arc avoidance opening 611 is equal to the radian of the outer wall surface of the outer flange 31, so that the volume of the side magnetic structure 6 is maximized, namely, the magnetic field intensity of the micro-speaker is improved to the greatest extent.
Further preferably, a protrusion 62 is provided on a side of the extension 61 near the central magnetic structure 5, and the protrusion 62 is disposed corresponding to a connection between the side of the voice coil 3 and the outer flange 31. Since the outer flange 31 is C-shaped, a junction between the side edge of the voice coil 3 and the outer flange 31 forms a retracted region, and the protruding portion 62 protrudes toward the retracted region corresponding to the retracted region, so that the internal space of the micro-speaker can be more fully utilized to increase the overall volume of the side magnetic structure 6.
Optionally, at least part of the area of the inner wall surface of the outer flange 31 is adhered to each other. This can improve the deformation of the outer flange 31, which is advantageous in ensuring the structural stability of the micro-speaker. For example, when the outer flange 31 is C-shaped, two sides of the opening of the outer flange 31 may be adhered and fixed to each other, and when the outer flange 31 is U-shaped, for example, most of the inner wall surface of the outer flange 31 may be adhered and fixed to each other.
The outer flange 31 is fixedly bonded to the support assembly 2. In this embodiment, the bottom surface of the outer flange 31 is bonded to the support member 2. In other embodiments, the support member 2 may be adhered to the outer wall surface of the outer flange 31.
In other embodiments, the support assembly 2 may include only one of a centering clip and a secondary membrane. 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 connected and fixed to each other.
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 voice coil is in a rectangular frame shape as a whole, and the corner part of the voice coil is provided with an outer convex part protruding outwards;
the vibrating diaphragm assembly is connected with the basin frame and the voice coil;
the support component is connected with the basin frame and the outer protruding part;
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 outer protruding part is positioned in the through groove.
2. A micro-speaker as claimed in claim 1, wherein: the outer convex part is integrally C-shaped.
3. A micro-speaker as claimed in claim 2, wherein: the side magnetic structure is provided with an extension part which extends towards the direction close to the passing groove at the passing groove, and the extension part is provided with an arc avoiding opening for avoiding the outer protruding part.
4. A micro-speaker as claimed in claim 3, wherein: one side of the extension part, which is close to the central magnetic structure, is provided with a protruding part, and the protruding part is arranged corresponding to the joint of the side edge of the voice coil and the outer protruding part.
5. A micro-speaker as claimed in claim 2, wherein: at least partial areas of the inner wall surfaces of the outer protruding portions are adhered and fixed with each other.
6. A micro-speaker as claimed in claim 1, wherein: the outer convex part is adhered and fixed with the supporting component.
7. A micro-speaker as claimed in claim 6, wherein: the bottom surface of the outer flange is bonded with the support component.
8. A micro-speaker as claimed in claim 1, wherein: the support assembly includes a centering tab or secondary membrane.
9. A micro-speaker as claimed in claim 1, wherein: the support assembly comprises a centering support sheet and a secondary membrane which are connected and fixed with each other.
10. A micro-speaker as claimed in claim 1, wherein: the four corners of the voice coil are all formed with the outer protruding portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320923150.4U CN219876091U (en) | 2023-04-20 | 2023-04-20 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320923150.4U CN219876091U (en) | 2023-04-20 | 2023-04-20 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219876091U true CN219876091U (en) | 2023-10-20 |
Family
ID=88343016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320923150.4U Active CN219876091U (en) | 2023-04-20 | 2023-04-20 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219876091U (en) |
-
2023
- 2023-04-20 CN CN202320923150.4U patent/CN219876091U/en active Active
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| GR01 | Patent grant |