CN222423990U - A miniature speaker - Google Patents
A miniature speaker Download PDFInfo
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- CN222423990U CN222423990U CN202421001608.1U CN202421001608U CN222423990U CN 222423990 U CN222423990 U CN 222423990U CN 202421001608 U CN202421001608 U CN 202421001608U CN 222423990 U CN222423990 U CN 222423990U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本实用新型公开了一种微型扬声器，包括振动组件、上磁路组件、下磁路组件、摄像头组件和外磁路组件，振动组件包括中贴、上音圈、下音圈、上振膜及下振膜，上振膜与下振膜分别呈环状，上音圈与下音圈分别连接中贴，中贴位于上音圈与下音圈之间，上音圈连接上振膜，下音圈连接下振膜；上磁路组件包括相连的上导磁罩和上中心磁结构，上中心磁结构包括相连的环形磁钢与上中心华司，上中心华司具有翻边和上华司通孔，翻边位于环形磁钢内，上中心华司远离中贴的一侧设有高音磁钢，高音磁钢位于至少一组相对设置的两个翻边之间。本微型扬声器结构新颖，集成了摄像头组件，实现了器件的高度集成；声压级高，声学性能佳。
The utility model discloses a micro speaker, including a vibration component, an upper magnetic circuit component, a lower magnetic circuit component, a camera component and an external magnetic circuit component. The vibration component includes a middle sticker, an upper voice coil, a lower voice coil, an upper diaphragm and a lower diaphragm. The upper diaphragm and the lower diaphragm are respectively annular. The upper voice coil and the lower voice coil are respectively connected to the middle sticker, the middle sticker is located between the upper voice coil and the lower voice coil, the upper voice coil is connected to the upper diaphragm, and the lower voice coil is connected to the lower diaphragm. The upper magnetic circuit component includes a connected upper magnetic conductive cover and an upper center magnetic structure. The upper center magnetic structure includes a connected annular magnetic steel and an upper center washer. The upper center washer has a flange and an upper washer through hole. The flange is located in the annular magnetic steel. A treble magnetic steel is provided on the side of the upper center washer away from the middle sticker. The treble magnetic steel is located between at least one set of two flanges arranged oppositely. The micro speaker has a novel structure, an integrated camera component, and a high degree of device integration is achieved. The sound pressure level is high and the acoustic performance is good.
Description
Technical Field
The utility model relates to the technical field of electroacoustic transducers, in particular to a miniature loudspeaker.
Background
With the rapid development of consumer electronics industry, especially smart phones, the demands of end consumers for device use experience are getting higher and higher.
At present, electronic terminal devices such as smart phones step on a development road of light and thin, in electronic terminal devices such as smart phones, a loudspeaker and a camera become indispensable components, in the prior art, the loudspeaker and the camera are often separately arranged, which definitely occupies a lot of space inside the electronic terminal devices such as smart phones, and influences the light and thin electronic terminal devices such as smart phones. In addition, the sound pressure level of the existing speakers is also poor, and there is a need for further improvement.
Disclosure of utility model
The utility model solves the problem of providing a high-performance micro-speaker with a shooting function.
In order to solve the technical problems, the technical scheme adopted by the utility model is that the miniature loudspeaker comprises:
The vibration assembly comprises a middle paste, an upper voice coil, a lower voice coil, an upper vibrating diaphragm and a lower vibrating diaphragm, wherein the upper vibrating diaphragm and the lower vibrating diaphragm are respectively annular, the upper voice coil and the lower voice coil are respectively connected with the middle paste, the middle paste is positioned between the upper voice coil and the lower voice coil, the upper voice coil is connected with the upper vibrating diaphragm, and the lower voice coil is connected with the lower vibrating diaphragm;
The upper magnetic circuit assembly comprises an upper magnetic conduction cover and an upper central magnetic structure which are connected, the upper central magnetic structure comprises an upper annular magnetic steel and an upper central washer which are connected, the upper central washer is provided with a turned edge and an upper washer through hole, the turned edge is positioned in the upper annular magnetic steel, one side, far away from the middle paste, of the upper central washer is provided with an upper magnetic steel, the upper magnetic steel is positioned between at least one group of two turned edges which are oppositely arranged, the upper magnetic conduction cover is connected with the upper vibrating diaphragm, the upper magnetic conduction cover is provided with a window and an upper magnetic cover through hole which is communicated with the upper washer through hole, the window is provided with an upper vibrating diaphragm assembly, the upper vibrating diaphragm assembly is connected with an upper voice coil, and the upper voice coil is arranged corresponding to a gap between the upper magnetic steel and the turned edge;
The lower magnetic circuit assembly comprises a lower magnetic conduction cover and a lower central magnetic structure which are connected, the lower magnetic conduction cover is connected with the lower vibrating diaphragm, the lower magnetic circuit assembly is provided with an installation cavity, the lower magnetic conduction cover is provided with a window communicated with the installation cavity, and the middle paste is positioned between the upper central magnetic structure and the lower central magnetic structure;
the camera assembly is arranged in the mounting cavity;
The outer magnetic circuit assembly comprises annular outer magnetic steel, an upper annular magnetic conduction support and a lower annular magnetic conduction support, the upper annular magnetic conduction support is connected with the annular outer magnetic steel and the upper vibrating diaphragm, and the lower annular magnetic conduction support is connected with the annular outer magnetic steel and the lower vibrating diaphragm.
In an embodiment, the lower central magnetic structure comprises a lower annular magnetic steel and a lower central washer which are connected, the top of the camera assembly is abutted against the lower central washer, and the lower portion of the camera assembly is provided with a lower abutting portion abutted against the lower magnetic conductive cover.
In an embodiment, the camera component is not protruding from the bottom surface of the upper magnetic conductive cover.
In one embodiment, the flange is formed by bending a partial region of the upper central washer.
In an embodiment, the upper magnetic circuit assembly further comprises an upper washer, and the upper washer is arranged on one side of the upper magnetic steel away from the middle paste.
In an embodiment, the number of the upper magnetic shield through holes is multiple, and the upper magnetic shield through holes are arranged around the open window.
In an embodiment, the upper centering support piece further comprises an upper centering support piece, wherein the upper centering support piece comprises an upper inner fixing part, an upper cantilever and an upper outer fixing part which are sequentially connected from inside to outside, the upper vibrating diaphragm is connected with the upper voice coil through the upper inner fixing part, and the upper annular magnetic conduction support is connected with the upper vibrating diaphragm through the upper outer fixing part.
In an embodiment, the lower centering support piece further comprises a lower inner fixing portion, a lower cantilever and a lower outer fixing portion which are sequentially connected from inside to outside, the lower vibrating diaphragm is connected with the lower voice coil through the lower inner fixing portion, and the lower annular magnetic conduction support is connected with the lower vibrating diaphragm through the lower outer fixing portion.
In one embodiment, the upper magnetic conductive cover is provided with an upper avoiding groove for avoiding the upper vibrating diaphragm, and/or the lower magnetic conductive cover is provided with a lower avoiding groove for avoiding the lower vibrating diaphragm.
In an embodiment, the flanges are respectively and correspondingly arranged at two ends and two sides of the upper magnetic steel.
The utility model has the beneficial effects that:
The micro-speaker is novel in structure, and the two voice coils are adopted to drive the middle paste to move, so that the driving force is effectively improved, the middle paste can drive air more forcefully so as to sound, the sound pressure level of the micro-speaker is improved, and the acoustic performance of the micro-speaker is improved;
The middle paste is internally arranged in the miniature loudspeaker, vibration cannot be seen from the appearance, and the upper vibrating diaphragm, the lower vibrating diaphragm and the middle paste are effectively protected from being damaged;
The upper voice coil and the lower voice coil are respectively suspended by the upper vibrating diaphragm and the lower vibrating diaphragm, so that the stability of the vibration of the upper voice coil and the lower voice coil is better ensured;
The upper center magnetic structure is hollowed out, and an additional vibration sounding structure is added, so that the micro-speaker can form a high-low pitch speaker or a coaxial speaker, and the acoustic performance of the micro-speaker is improved;
The center of the lower part is magnetically hollowed out, the camera component is integrated, a camera and loudspeaker integrated framework is formed, high integration of devices is facilitated, and the development trend that the internal space of electronic equipment is more and more compact can be met.
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 an upper magnetic shield in a micro-speaker according to a first embodiment of the present utility model;
fig. 3 is a schematic structural diagram of an upper center washer in a micro speaker according to a first embodiment of the present utility model.
Reference numerals illustrate:
11. the middle paste, 12, an upper voice coil, 13, a lower voice coil, 14, an upper vibrating diaphragm, 15, a lower vibrating diaphragm;
21. the upper magnetic conduction cover, 211, a window, 212, an upper magnetic cover through hole, 213, an upper avoidance groove, 22, an upper annular magnetic steel, 23, an upper center washer, 231, a flanging, 232, an upper washer through hole, 24, an upper magnetic steel, 25, an upper vibrating diaphragm assembly, 26, an upper voice coil, 27, an upper washer;
31. a lower magnetic conductive cover; 311, a window, 312, a lower avoiding groove, 32, lower annular magnetic steel, 33, and a lower center washer;
41. Annular outer magnetic steel; 42, upper annular magnetic conduction bracket, 43, lower annular magnetic conduction bracket;
51. a centering support piece is arranged on the upper part; 52, lower centering support;
6. And 61, a camera component and a lower abutting part.
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, a micro speaker according to an embodiment of the utility model can be applied to electronic devices such as a mobile phone, a hearing aid, a tablet computer, a smart watch, and the like.
The miniature loudspeaker comprises a vibration assembly, an upper magnetic circuit assembly, a lower magnetic circuit assembly, a camera assembly 6 and an outer magnetic circuit assembly, wherein the vibration assembly comprises a middle patch 11, an upper voice coil 12, a lower voice coil 13, an upper vibrating diaphragm 14 and a lower vibrating diaphragm 15, the upper vibrating diaphragm 14 and the lower vibrating diaphragm 15 are respectively annular, the upper voice coil 12 and the lower voice coil 13 are respectively connected with the middle patch 11, the middle patch 11 is positioned between the upper voice coil 12 and the lower voice coil 13, the upper voice coil 12 is connected with the upper vibrating diaphragm 14, and the lower voice coil 13 is connected with the lower vibrating diaphragm 15;
The upper magnetic circuit assembly comprises an upper magnetic conduction cover 21 and an upper central magnetic structure which are connected, wherein the upper central magnetic structure comprises an upper annular magnetic steel 22 and an upper central washer 23 which are connected, the upper annular magnetic steel 22 is connected with the upper magnetic conduction cover 21, the upper central washer 23 is provided with a flange 231 and an upper washer through hole 232, the flange 231 is positioned in the upper annular magnetic steel 22, one side of the upper central washer 23, which is far away from the middle paste 11, is provided with an upper magnetic steel 24, the upper magnetic steel 24 is positioned between at least one group of two flanges 231 which are oppositely arranged, preferably, both ends and both sides of the upper magnetic steel 24 are respectively provided with the flange 231, the upper magnetic conduction cover 21 is connected with the upper diaphragm 14, the upper magnetic steel cover 21 is provided with an opening 211 and an upper magnetic washer through hole 212 which is communicated with the upper washer through hole 232, the opening 211 is provided with an upper voice coil assembly 25, the upper voice coil assembly 26 is correspondingly provided with a flange 231, the upper magnetic steel 24 is positioned between at least one group of flanges 231, and the flange 231 is provided with a flange 231, and the flange 231 is bent to form a region which is convenient for manufacturing the central washer through hole 23, and the upper diaphragm is formed in the flange area 231, and the upper coil assembly is provided with the opening hole 232;
The lower magnetic circuit assembly comprises a lower magnetic conduction cover 31 and a lower central magnetic structure which are connected, the lower magnetic conduction cover 31 is connected with the lower vibrating diaphragm 15, the lower magnetic circuit assembly is provided with a mounting cavity, the lower magnetic conduction cover 31 is provided with a window 311 communicated with the mounting cavity, and the middle patch 11 is positioned between the upper central magnetic structure and the lower central magnetic structure;
The camera module 6 is mounted in the mounting cavity, external light is received by the camera module 6 through the window 311, preferably the camera module 6 is not protruded out of the bottom surface of the upper magnetic conductive cover 21, therefore, the lower magnetic conductive cover 31 can protect the camera module 6 to a certain extent, the scratch probability of the camera module 6 is reduced, more preferably, a sealant contacting the camera module 6 is arranged at the edge of the window 311, the sealant is in a ring frame shape, and the existence of the sealant can prevent external dust, water vapor and the like from entering the mounting cavity through the window 311, so that the camera module 6 is polluted and cannot work normally and stably
The outer magnetic circuit assembly comprises annular outer magnetic steel 41, an upper annular magnetic conduction support 42 and a lower annular magnetic conduction support 43, wherein the upper annular magnetic conduction support 42 is connected with the annular outer magnetic steel 41 and the upper vibrating diaphragm 14, and the lower annular magnetic conduction support 43 is connected with the annular outer magnetic steel 41 and the lower vibrating diaphragm 15. An upper magnetic gap for the upper voice coil 12 to move is formed between the upper central magnetic structure and the outer magnetic circuit assembly, and a lower magnetic gap for the lower voice coil 13 to move is formed between the lower central magnetic structure and the outer magnetic circuit assembly.
The lower center magnetic structure comprises a lower annular magnetic steel 32 and a lower center washer 33 which are connected, the lower annular magnetic steel 32 is connected with the lower magnetic conduction cover 31, and the lower center washer 33 is optionally abutted against the top of the camera assembly 6 in order to improve the installation stability of the camera assembly 6 in the lower center magnetic structure, the lower portion of the camera assembly 6 is provided with a lower abutting portion 61 abutted against the lower magnetic conduction cover 31, and the inner side of the edge of the window 311 is abutted against the lower abutting portion 61.
In order to improve the acoustic performance of the treble sound unit, the upper magnetic circuit assembly further comprises an upper washer 27, and the upper washer 27 is disposed on a side of the upper magnetic steel 24 away from the middle piece 11.
The number of the upper magnetic shield through holes 212 is plural, and the upper magnetic shield through holes 212 are plural and are disposed around the window 211. It is easy to understand that, in the vibration process of the middle patch 11, the air inside the micro-speaker and the air outside the micro-speaker interact with each other through the upper magnetic cover through hole 212.
Specifically, the upper vibrating diaphragm 14 comprises an upper inner mounting part, an upper folded ring part and an upper outer mounting part which are sequentially connected from inside to outside, the upper inner mounting part is connected with the upper voice coil 12, the upper outer mounting part is connected with the upper magnetic conductive cover 21 and the upper annular magnetic conductive support 42, the lower vibrating diaphragm 15 comprises a lower inner mounting part, a lower folded ring part and a lower outer mounting part which are sequentially connected from inside to outside, the lower inner mounting part is connected with the lower voice coil 13, and the lower outer mounting part is connected with the lower magnetic conductive cover 31 and the lower annular magnetic conductive support 43.
In this embodiment, the micro-speaker further includes an upper centering support 51, where the upper centering support 51 includes an upper inner fixing portion, an upper cantilever, and an upper outer fixing portion, which are sequentially connected from inside to outside, the upper diaphragm 14 is connected to the upper voice coil 12 through the upper inner fixing portion, and the upper annular magnetic conductive support 42 is connected to the upper diaphragm 14 through the upper outer fixing portion. Specifically, the upper inner fixing portion is connected to the upper inner mounting portion and the upper voice coil 12, respectively, and the upper outer fixing portion is connected to the upper annular magnetic conductive bracket 42 and the upper outer mounting portion, respectively. The upper centering support piece 51 can correct the upper voice coil 12, and improve the polarization and rolling vibration phenomena of the upper voice coil 12.
Similarly, the micro-speaker further includes a lower centering support 52, where the lower centering support 52 includes a lower inner fixing portion, a lower cantilever, and a lower outer fixing portion, which are sequentially connected from inside to outside, the lower diaphragm 15 is connected to the lower voice coil 13 through the lower inner fixing portion, and the lower annular magnetic conductive bracket 43 is connected to the lower diaphragm 15 through the lower outer fixing portion. Specifically, the lower inner fixing portion is connected to the lower inner mounting portion and the lower voice coil 13, respectively, and the lower outer fixing portion is connected to the lower annular magnetic conductive bracket 43 and the lower outer mounting portion, respectively. The lower centering support piece 52 can correct the deflection of the lower voice coil 13, and improve the polarization and rolling vibration phenomena of the lower voice coil 13.
The upper magnetic conductive cover 21 is provided with an upper avoiding groove 213 for avoiding the upper vibrating diaphragm 14, and/or the lower magnetic conductive cover 31 is provided with a lower avoiding groove 312 for avoiding the lower vibrating diaphragm 15.
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 vibration assembly comprises a middle paste, an upper voice coil, a lower voice coil, an upper vibrating diaphragm and a lower vibrating diaphragm, wherein the upper vibrating diaphragm and the lower vibrating diaphragm are respectively annular, the upper voice coil and the lower voice coil are respectively connected with the middle paste, the middle paste is positioned between the upper voice coil and the lower voice coil, the upper voice coil is connected with the upper vibrating diaphragm, and the lower voice coil is connected with the lower vibrating diaphragm;
The upper magnetic circuit assembly comprises an upper magnetic conduction cover and an upper central magnetic structure which are connected, the upper central magnetic structure comprises an upper annular magnetic steel and an upper central washer which are connected, the upper central washer is provided with a turned edge and an upper washer through hole, the turned edge is positioned in the upper annular magnetic steel, one side, far away from the middle paste, of the upper central washer is provided with an upper magnetic steel, the upper magnetic steel is positioned between at least one group of two turned edges which are oppositely arranged, the upper magnetic conduction cover is connected with the upper vibrating diaphragm, the upper magnetic conduction cover is provided with a window and an upper magnetic cover through hole which is communicated with the upper washer through hole, the window is provided with an upper vibrating diaphragm assembly, the upper vibrating diaphragm assembly is connected with an upper voice coil, and the upper voice coil is arranged corresponding to a gap between the upper magnetic steel and the turned edge;
The lower magnetic circuit assembly comprises a lower magnetic conduction cover and a lower central magnetic structure which are connected, the lower magnetic conduction cover is connected with the lower vibrating diaphragm, the lower magnetic circuit assembly is provided with an installation cavity, the lower magnetic conduction cover is provided with a window communicated with the installation cavity, and the middle paste is positioned between the upper central magnetic structure and the lower central magnetic structure;
the camera assembly is arranged in the mounting cavity;
The outer magnetic circuit assembly comprises annular outer magnetic steel, an upper annular magnetic conduction support and a lower annular magnetic conduction support, the upper annular magnetic conduction support is connected with the annular outer magnetic steel and the upper vibrating diaphragm, and the lower annular magnetic conduction support is connected with the annular outer magnetic steel and the lower vibrating diaphragm.
2. The micro-speaker of claim 1, wherein the lower center magnetic structure comprises a lower annular magnetic steel and a lower center washer which are connected, the top of the camera assembly is abutted against the lower center washer, and the lower portion of the camera assembly is provided with a lower abutting portion abutted against the lower magnetic conductive cover.
3. The micro-speaker of claim 1, wherein the camera assembly is not protruding from the bottom surface of the upper magnetic shield.
4. The micro-speaker of claim 1, wherein the flange is formed by bending a partial region of the upper center washer.
5. The micro-speaker of claim 1, wherein the upper magnetic circuit assembly further comprises an upper washer disposed on a side of the upper magnetic steel away from the center piece.
6. The micro-speaker of claim 1, wherein the number of the upper shield through holes is plural, and the upper shield through holes are plural and are disposed around the window.
7. The micro-speaker of claim 1, further comprising an upper centering support, wherein the upper centering support comprises an upper inner fixing portion, an upper cantilever and an upper outer fixing portion which are sequentially connected from inside to outside, the upper diaphragm is connected with the upper voice coil through the upper inner fixing portion, and the upper annular magnetic conductive support is connected with the upper diaphragm through the upper outer fixing portion.
8. The micro-speaker of claim 1, further comprising a lower centering support, wherein the lower centering support comprises a lower inner fixing portion, a lower cantilever and a lower outer fixing portion which are sequentially connected from inside to outside, the lower diaphragm is connected with the lower voice coil through the lower inner fixing portion, and the lower annular magnetic conductive bracket is connected with the lower diaphragm through the lower outer fixing portion.
9. The micro-speaker of claim 1, wherein the upper magnetic shield is provided with an upper avoiding groove for avoiding the upper diaphragm, and/or the lower magnetic shield is provided with a lower avoiding groove for avoiding the lower diaphragm.
10. The micro-speaker of claim 1, wherein the flanges are provided at both ends and both sides of the upper magnetic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421001608.1U CN222423990U (en) | 2024-05-09 | 2024-05-09 | A miniature speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421001608.1U CN222423990U (en) | 2024-05-09 | 2024-05-09 | A miniature speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222423990U true CN222423990U (en) | 2025-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421001608.1U Active CN222423990U (en) | 2024-05-09 | 2024-05-09 | A miniature speaker |
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| Country | Link |
|---|---|
| CN (1) | CN222423990U (en) |
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- 2024-05-09 CN CN202421001608.1U patent/CN222423990U/en active Active
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