CN223415017U - Miniature loudspeaker - Google Patents
Miniature loudspeakerInfo
- Publication number
- CN223415017U CN223415017U CN202422765517.1U CN202422765517U CN223415017U CN 223415017 U CN223415017 U CN 223415017U CN 202422765517 U CN202422765517 U CN 202422765517U CN 223415017 U CN223415017 U CN 223415017U
- Authority
- CN
- China
- Prior art keywords
- micro
- speaker
- fixing portion
- window
- side magnetic
- 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，包括下振膜、上振膜和定心支片，所述下振膜包括由内向外依次相连的下内固定部、下折环部及下外固定部，所述下折环朝下凸出；所述上振膜包括由内向外依次相连的上内固定部、上折环部及上外固定部，所述上折环朝上凸出且与所述下折环相对设置；所述定心支片位于所述上振膜与所述下振膜之间，所述定心支片包括由内向外依次相连的内安装部、悬臂部及外安装部，所述内安装部分别连接所述上内固定部与下内固定部，所述外安装部分别连接所述上外固定部与下外固定部，所述悬臂部对应于所述下折环设置。本微型扬声器结构新颖，性能表现佳。
The present invention discloses a micro-speaker comprising a lower diaphragm, an upper diaphragm, and a centering support. The lower diaphragm comprises a lower inner fixing portion, a lower folding ring portion, and a lower outer fixing portion, which are sequentially connected from the inside to the outside, with the lower folding ring protruding downward. The upper diaphragm comprises an upper inner fixing portion, an upper folding ring portion, and an upper outer fixing portion, which are sequentially connected from the inside to the outside, with the upper folding ring protruding upward and disposed opposite the lower folding ring. The centering support is located between the upper and lower diaphragms and comprises an inner mounting portion, a cantilever portion, and an outer mounting portion, which are sequentially connected from the inside to the outside. The inner mounting portion is respectively connected to the upper inner fixing portion and the lower inner fixing portion, and the outer mounting portion is respectively connected to the upper outer fixing portion and the lower outer fixing portion, with the cantilever portion being disposed corresponding to the lower folding ring. This micro-speaker has a 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
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 micro-speakers used are popularizing large-amplitude speakers or super-linear speakers.
With the development of society, the thickness of micro-speaker is smaller and smaller, and its performance has a certain degree of decay, and in conventional super-linear micro-speaker, the centering piece is located the four corners of micro-speaker, and the centering piece of locating the four corners needs to occupy the setting space of magnet steel, and this certainly influences micro-speaker's magnetic field strength, so micro-speaker's performance is bad and deliberate.
Disclosure of utility model
The utility model solves the technical problem of providing a high-performance micro-speaker.
In order to solve the technical problems, the technical scheme adopted by the utility model is that the miniature loudspeaker comprises:
the lower vibrating diaphragm comprises a lower inner fixing part, a lower folding ring part and a lower outer fixing part which are sequentially connected from inside to outside, and the lower folding ring protrudes downwards;
The upper vibrating diaphragm comprises an upper inner fixing part, an upper folding ring part and an upper outer fixing part which are sequentially connected from inside to outside, wherein the upper folding ring protrudes upwards and is arranged opposite to the lower folding ring;
The centering support piece is positioned between the upper vibrating diaphragm and the lower vibrating diaphragm and comprises an inner installation part, a cantilever part and an outer installation part which are sequentially connected from inside to outside, wherein the inner installation part is respectively connected with the upper inner fixing part and the lower inner fixing part, the outer installation part is respectively connected with the upper outer fixing part and the lower outer fixing part, and the cantilever part corresponds to the lower folding ring.
In an embodiment, the lower inner fixing portion is provided with a first exposed opening, the upper outer fixing portion or the lower outer fixing portion is provided with a second exposed opening, the inner mounting portion is provided with an inner bonding pad, the inner bonding pad is exposed through the first exposed opening, the outer mounting portion is provided with an outer bonding pad, the outer bonding pad is exposed through the second exposed opening, and the outer bonding pad is electrically connected with the inner bonding pad.
In an embodiment, the upper inner fixing portion is provided with a first window, the inner mounting portion is provided with a second window communicated with the first window, and the lower inner fixing portion is provided with a third window communicated with the second window.
In an embodiment, the window further comprises a ball top, wherein the ball top is arranged on the top surface of the upper inner fixing part and seals the first window.
In an embodiment, the device further comprises a ball top, wherein the ball top is arranged on the bottom surface of the lower inner fixing part and seals the third window.
In one embodiment, the dome is provided with a relief opening.
In one embodiment, the device further comprises a voice coil, and the voice coil is connected with the dome.
In an embodiment, still include basin frame and connect the magnetic circuit subassembly of basin frame, lower external fixation portion connects the basin frame, magnetic circuit subassembly includes the yoke and locates respectively center magnetic structure and limit magnetic structure on the yoke, limit magnetic structure is whole to be continuous ring frame form, limit magnetic structure centers on center magnetic structure sets up.
In an embodiment, the side magnetic structure comprises side magnetic steel and an annular washer, wherein the side magnetic steel is connected with the annular washer and the yoke, and the annular washer is in a continuous annular frame shape.
In an embodiment, the side magnetic steel is in a continuous annular frame shape, or the side magnetic steel comprises a plurality of sub magnetic steels, the plurality of sub magnetic steels are distributed in an annular frame shape, and two adjacent sub magnetic steels are in contact with each other.
Compared with the existing micro-speaker, the micro-speaker has the advantages that centering support pieces and bonding pads at four corners of the micro-speaker are omitted, a double-diaphragm structure is adopted, the centering support pieces are clamped between two diaphragms, rolling vibration can be well restrained, the micro-speaker can achieve super linearity at a higher level, the centering support pieces are arranged between the two diaphragms, the edge magnetic structure of the micro-speaker can adopt a complete annular magnetic circuit, the total volume of magnetic steel in the micro-speaker is increased, BL values of the micro-speaker are improved, and performance of the micro-speaker is improved.
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;
Fig. 3 is an exploded view of a part of the structure of a micro speaker according to a first embodiment of the present utility model.
Reference numerals illustrate:
1. a basin stand;
2. Magnetic circuit assembly, 21, yoke, 22, central magnetic structure, 221, central magnetic steel, 222, central washer, 23, side magnetic structure, 231, side magnetic steel, 232, annular washer;
3. A voice coil;
4. The lower vibrating diaphragm, 41, a lower inner fixing part, 42, a lower folded ring part, 43, a lower outer fixing part, 44, a first exposure opening, 45, a second exposure opening;
5. The upper vibrating diaphragm, 51, an upper inner fixing part, 52, an upper folded ring part, 53, an upper outer fixing part;
6. Centering support piece 61, inner mounting part 62, cantilever part 63, outer mounting part;
7. ball top, 71, avoiding opening.
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 to 3, in a first embodiment of the present utility model, a micro-speaker includes a frame 1, a magnetic circuit assembly 2, a voice coil 3, a lower diaphragm 4, an upper diaphragm 5 and a centering support plate 6, wherein the magnetic circuit assembly 2 is connected to the frame 1, the magnetic circuit assembly 2 includes a yoke 21, a central magnetic structure 22 and a side magnetic structure 23 respectively disposed on the yoke 21, the side magnetic structure 23 is integrally formed as a continuous ring frame, the side magnetic structure 23 surrounds the central magnetic structure 22, a magnetic gap is formed between the central magnetic structure 22 and the side magnetic structure 23, the side magnetic structure 23 is connected to the frame 1, the lower diaphragm 4 includes a lower inner fixing portion 41, a lower folded ring portion 42 and a lower outer fixing portion 43 sequentially connected from inside to outside, the lower outer fixing portion 43 is connected to the frame 1, the voice coil 3 is connected to the lower inner fixing portion 41 and corresponds to the magnetic gap, the upper fixing portion 5 includes an upper folded ring portion 62 sequentially connected to the upper fixing portion 62, the upper fixing portion 63 is sequentially connected to the lower fixing portion 61 and the upper fixing portion 6, the upper fixing portion 61 is sequentially connected to the lower fixing portion 61 and the upper fixing portion 61 is sequentially mounted to the upper fixing portion 3, and the lower fixing portion 61 is sequentially connected to the upper fixing portion 61 and the lower fixing portion 43.
Specifically, the bottom surface of the upper inner fixing portion 51 is connected to the top surface of the inner mounting portion 61, the top surface of the lower inner fixing portion 41 is connected to the bottom surface of the inner mounting portion 61, the bottom surface of the upper outer fixing portion 53 is connected to the top surface of the outer mounting portion 63, and the top surface of the lower outer fixing portion 43 is connected to the bottom surface of the outer mounting portion 63.
The central magnetic structure 22 comprises a central magnetic steel 221 and a central washer 222, the central magnetic steel 221 is connected with the yoke 21 and the central washer 222, the side magnetic structure 23 comprises side magnetic steels 231 and an annular washer 232, the side magnetic steels 231 are connected with the annular washer 232 and the yoke 21, the annular washer 232 is in a continuous annular frame shape, in the embodiment, the side magnetic steels 231 are in a continuous annular frame shape, in other embodiments, the side magnetic steels 231 comprise a plurality of sub magnetic steels, the sub magnetic steels are distributed in an annular frame shape, and two adjacent sub magnetic steels are in contact with each other.
In this embodiment, the centering support 6 not only has the function of suppressing rolling vibration, but also has the function of conducting the external power source and the voice coil 3, more specifically, the lower inner fixing portion 41 is provided with a first exposed opening 44, the upper outer fixing portion 53 or the lower outer fixing portion 43 is provided with a second exposed opening 45, the inner mounting portion 61 is provided with an inner bonding pad, the inner bonding pad is exposed through the first exposed opening 44, the outer mounting portion 63 is provided with an outer bonding pad, the outer bonding pad is exposed through the second exposed opening 45, the outer bonding pad is electrically connected with the inner bonding pad, and the lead wire of the voice coil 3 is welded and conducted with the inner bonding pad.
In order to improve the sensitivity of the micro-speaker, the upper inner fixing portion 51 is provided with a first window, the inner mounting portion 61 is provided with a second window which is communicated with the first window, the lower inner fixing portion 41 is provided with a third window which is communicated with the second window, and the first window, the second window and the third window are aligned.
In some embodiments, the micro-speaker further comprises a dome 7, wherein the dome 7 is disposed on the top surface of the upper inner fixing part 51 and closes the first window. In this embodiment, the dome 7 is disposed on the bottom surface of the lower internal fixing portion 41 and seals the third window, and further, an avoidance opening 71 is disposed on the dome 7, and the avoidance opening 71 is used for avoiding the lead wire of the voice coil 3, so that the lead wire of the voice coil 3 can be welded with an internal bonding pad, specifically, the voice coil 3 is connected to the dome 7, that is, the voice coil 3 is indirectly connected to the lower internal fixing portion 41 through the dome 7.
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 lower vibrating diaphragm comprises a lower inner fixing part, a lower folding ring part and a lower outer fixing part which are sequentially connected from inside to outside, and the lower folding ring protrudes downwards;
The upper vibrating diaphragm comprises an upper inner fixing part, an upper folding ring part and an upper outer fixing part which are sequentially connected from inside to outside, wherein the upper folding ring protrudes upwards and is arranged opposite to the lower folding ring;
The centering support piece is positioned between the upper vibrating diaphragm and the lower vibrating diaphragm and comprises an inner installation part, a cantilever part and an outer installation part which are sequentially connected from inside to outside, wherein the inner installation part is respectively connected with the upper inner fixing part and the lower inner fixing part, the outer installation part is respectively connected with the upper outer fixing part and the lower outer fixing part, and the cantilever part corresponds to the lower folding ring.
2. The micro-speaker of claim 1, wherein the lower inner fixing portion is provided with a first exposed opening, the upper outer fixing portion or the lower outer fixing portion is provided with a second exposed opening, the inner mounting portion is provided with an inner bonding pad, the inner bonding pad is exposed through the first exposed opening, the outer mounting portion is provided with an outer bonding pad, the outer bonding pad is exposed through the second exposed opening, and the outer bonding pad is electrically connected with the inner bonding pad.
3. The micro-speaker of claim 1, wherein the upper inner fixing portion is provided with a first window, the inner mounting portion is provided with a second window communicated with the first window, and the lower inner fixing portion is provided with a third window communicated with the second window.
4. The micro-speaker of claim 3, further comprising a dome, wherein the dome is disposed on a top surface of the upper inner fixing portion and closes the first window.
5. The micro-speaker of claim 3, further comprising a dome, wherein the dome is provided on a bottom surface of the lower inner fixing portion and closes the third window.
6. The micro-speaker of claim 5, wherein the dome is provided with a relief opening.
7. The micro-speaker of claim 5, further comprising a voice coil, wherein the voice coil is coupled to the dome.
8. The micro-speaker of claim 1, further comprising a frame and a magnetic circuit assembly connected to the frame, wherein the lower outer fixing portion is connected to the frame, the magnetic circuit assembly comprises a yoke, a central magnetic structure and a side magnetic structure, the central magnetic structure and the side magnetic structure are respectively arranged on the yoke, the whole side magnetic structure is in a continuous annular frame shape, and the side magnetic structure is arranged around the central magnetic structure.
9. The micro-speaker of claim 8, wherein the side magnetic structure comprises a side magnetic steel and a ring washer, the side magnetic steel connects the ring washer and the yoke, and the ring washer is in a continuous ring frame shape.
10. The micro-speaker of claim 9, wherein the side magnetic steel is in a continuous annular frame shape, or the side magnetic steel comprises a plurality of sub magnetic steels, the plurality of sub magnetic steels are arranged in an annular frame shape, and two adjacent sub magnetic steels are in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422765517.1U CN223415017U (en) | 2024-11-12 | 2024-11-12 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422765517.1U CN223415017U (en) | 2024-11-12 | 2024-11-12 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223415017U true CN223415017U (en) | 2025-10-03 |
Family
ID=97212362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422765517.1U Active CN223415017U (en) | 2024-11-12 | 2024-11-12 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223415017U (en) |
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2024
- 2024-11-12 CN CN202422765517.1U patent/CN223415017U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |