CN219876100U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN219876100U CN219876100U CN202321099941.6U CN202321099941U CN219876100U CN 219876100 U CN219876100 U CN 219876100U CN 202321099941 U CN202321099941 U CN 202321099941U CN 219876100 U CN219876100 U CN 219876100U
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Abstract
本实用新型公开了一种微型扬声器，其特征在于：包括盆架、磁路组件、第一振动组件和第二振动组件，磁路组件连接盆架，磁路组件上设有第一磁间隙和两个第二磁间隙，第一磁间隙位于两个第二磁间隙之间，磁路组件包括围绕第一磁间隙设置的支撑架；第一振动组件包括第一振膜组件和第一音圈，第一振膜组件连接第一音圈与支撑架，第一音圈活动于第一磁间隙；第二振动组件，第二振动组件包括第二振膜组件和分别连接第二振膜组件的两个第二音圈，第二振膜组件连接磁路组件与盆架，第二音圈活动于第二磁间隙，两个第二音圈与两个第二磁间隙一一对应。本微型扬声器结构新颖、紧凑，灵敏度高、低音效果好。
The utility model discloses a miniature speaker, which is characterized in that it includes a basin frame, a magnetic circuit assembly, a first vibration assembly and a second vibration assembly. The magnetic circuit assembly is connected to the basin frame, and the magnetic circuit assembly is provided with a first magnetic gap and a second vibration assembly. Two second magnetic gaps, the first magnetic gap is located between the two second magnetic gaps, the magnetic circuit assembly includes a support frame arranged around the first magnetic gap; the first vibration assembly includes a first diaphragm assembly and a first voice coil , the first diaphragm component connects the first voice coil and the support frame, and the first voice coil moves in the first magnetic gap; the second vibration component includes a second diaphragm component and a second diaphragm component respectively connected to the second diaphragm component. Two second voice coils, the second diaphragm component connects the magnetic circuit component and the basin frame, the second voice coil moves in the second magnetic gap, and the two second voice coils correspond to the two second magnetic gaps one by one. This micro speaker has a novel and compact structure, high sensitivity and good bass effect.
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 miniature electroacoustic devices applied thereto are also increasing.
The micro-speaker generally adopts high and low frequency division to enhance sound effect, and the Chinese patent publication No. CN217721457U discloses a coaxial speaker which comprises a high-pitched unit and a low-pitched unit, and the low-pitched effect is found to be bad in the actual use process, and further enhanced space exists.
Disclosure of Invention
The utility model mainly aims to provide a miniature loudspeaker with a novel structure, and aims to solve the problem of poor bass effect of the traditional miniature loudspeaker.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
a basin stand;
the magnetic circuit assembly is connected with the basin frame, a first magnetic gap and two second magnetic gaps are arranged on the magnetic circuit assembly, the first magnetic gap is positioned between the two second magnetic gaps, and the magnetic circuit assembly comprises a supporting frame arranged around the first magnetic gap;
the first vibration assembly comprises a first vibrating diaphragm assembly and a first voice coil, the first vibrating diaphragm assembly is connected with the first voice coil and the support frame, and the first voice coil moves in the first magnetic gap;
the second vibration assembly comprises a second vibrating diaphragm assembly and two second voice coils which are respectively connected with the second vibrating diaphragm assembly, the second vibrating diaphragm assembly is connected with the magnetic circuit assembly and the basin frame, the second voice coils move in the second magnetic gaps, and the two second voice coils correspond to the two second magnetic gaps one by one;
the central region of the second vibration assembly is provided with an avoidance window for avoiding the first vibration assembly.
Further, the support frame is made of a magnetically conductive material.
Further, the first vibrating diaphragm assembly comprises a first sound membrane and a first middle paste arranged on the first sound membrane.
Further, the second vibrating diaphragm assembly comprises a second sound membrane and a second middle paste arranged on the second sound membrane.
Further, the magnetic circuit assembly further comprises a yoke, a second side magnetic structure, a second center magnetic structure, a first center magnetic structure and a first side magnetic structure, wherein the second side magnetic structure is connected with the basin frame, the second side magnetic structure, the second center magnetic structure and the center magnetic structure are respectively arranged on the yoke, the first center magnetic structure and the first side magnetic structure are respectively arranged on the center magnetic structure, a first magnetic gap is formed between the first center magnetic structure and the first side magnetic structure, the second magnetic gap comprises a first part and a second part which are connected into a ring shape, a first part is formed between the second side magnetic structure and the second center magnetic structure, and a second part is formed between the second center magnetic structure and the center magnetic structure.
Further, the second side magnetic structure comprises a second side magnetic steel and a second Bian Huasi, the second side magnetic steel is connected with the second Bian Huasi and the yoke, and the second Bian Huasi is connected with the basin frame.
Further, the second center magnetic structure comprises second center magnetic steel and a second center washer, and the second center magnetic steel is connected with the second center washer and the yoke.
Further, the central magnetic structure comprises central magnetic steel and a central washer, the central magnetic steel is connected with the central washer and the yoke, the first central magnetic structure and the first side magnetic structure are respectively arranged on the central washer, and the supporting frame is arranged on the first side magnetic structure.
Further, the first central magnetic structure comprises first central magnetic steel and first central washer, and the first central magnetic steel is connected with the first central washer and the central washer.
Further, the first side magnetic structure comprises first side magnetic steel.
The utility model has the beneficial effects that: the micro-speaker is novel in structure, has a high-pitch unit and two low-pitch units, and the two low-pitch units share a second vibrating diaphragm assembly, so that the sensitivity and the low-pitch effect of the micro-speaker are effectively improved, the acoustic performance of the micro-speaker is improved, and the micro-speaker is compact in structure and can be well adapted to light and thin electronic equipment.
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 a micro-speaker according to a first embodiment of the present utility model;
fig. 2 is a cross-sectional view of a micro speaker according to a first embodiment of the present utility model.
Reference numerals illustrate:
1. a basin stand;
2. a first vibration assembly; 21. a first diaphragm assembly; 22. a first voice coil;
3. a second vibration assembly; 31. a second diaphragm assembly; 32. a second voice coil; 33. a skeleton;
41. a first magnetic gap; 42. a second magnetic gap; 421. a first portion; 422. a second portion;
51. a support frame; 52. a yoke; 53. a second side magnetic structure; 54. a second central magnetic structure; 55. a central magnetic structure; 56. a first central magnetic structure; 57. a first side magnetic structure.
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: the miniature loudspeaker comprises a basin frame 1, a magnetic circuit assembly, a first vibration assembly 2 and a second vibration assembly 3, wherein the magnetic circuit assembly is connected with the basin frame 1, a first magnetic gap 41 and two second magnetic gaps 42 are arranged on the magnetic circuit assembly, the first magnetic gap 41 is positioned between the two second magnetic gaps 42, and the magnetic circuit assembly comprises a support frame 51 arranged around the first magnetic gap 41; the first vibration assembly 2 includes a first vibration film assembly 21 and a first voice coil 22, the first vibration film assembly 21 connects the first voice coil 22 with the support frame 51, and the first voice coil 22 moves in the first magnetic gap 41; the second vibration assembly 3 comprises a second vibration film assembly 31 and two second voice coils 32 respectively connected with the second vibration film assembly 31, the second vibration film assembly 31 is connected with the magnetic circuit assembly and the basin frame 1, the second voice coils 32 move in the second magnetic gaps 42, and the two second voice coils 32 are in one-to-one correspondence with the two second magnetic gaps 42; the central area of the second vibration component 3 is provided with an avoidance window for avoiding the first vibration component 2, and the first vibration component 2 is exposed from the avoidance window.
In this embodiment, the bass portion of the micro-speaker is jointly driven by the two second voice coils 32, effectively improving the bass effect of the micro-speaker.
To improve the efficiency of the magnetic circuit assembly, the support frame 51 is preferably made of a magnetically conductive material, which may be a ferromagnetic material. In this embodiment, the support frame 51 is a ring frame structure with an L-shaped cross section, and the ring frame structure with an L-shaped cross section can provide enough installation area for the first diaphragm assembly 21 and the second diaphragm assembly 31, so as to ensure structural stability of the micro-speaker.
The magnetic circuit assembly further comprises a yoke 52, a second side magnetic structure 53, a second center magnetic structure 54, a center magnetic structure 55, a first center magnetic structure 56 and a first side magnetic structure 57, wherein the second side magnetic structure 53 is connected with the basin stand 1, the second side magnetic structure 53, the second center magnetic structure 54 and the center magnetic structure 55 are respectively arranged on the yoke 52, the first center magnetic structure 56 and the first side magnetic structure 57 are respectively arranged on the center magnetic structure 55, a first magnetic gap 41 is formed between the first center magnetic structure 56 and the first side magnetic structure 57, the second magnetic gap 42 comprises a first part 421 and a second part 422 which are connected into a ring shape, the first part is formed between the second side magnetic structure 53 and the second center magnetic structure 54, and the second part 422 is formed between the second center magnetic structure 54 and the center magnetic structure 55.
Specifically, the second side magnetic structure 53 includes a second side magnetic steel and a second side magnetic steel Bian Huasi, the second side magnetic steel connects the second Bian Huasi and the yoke 52, and the second Bian Huasi connects the basin frame 1.
The second central magnetic structure 54 includes a second central magnetic steel and a second central washer, and the second central magnetic steel connects the second central washer and the yoke 52.
The central magnetic structure 55 comprises a central magnetic steel and a central washer, the central magnetic steel connects the central washer and the yoke 52, the first central magnetic structure 56 and the first side magnetic structure 57 are respectively arranged on the central washer, and the supporting frame 51 is arranged on the first side magnetic structure 57. Preferably, the central washer is horizontally aligned with the second central washer.
The first central magnetic structure 56 includes a first central magnetic steel and a first central washer, and the first central magnetic steel connects the first central washer and the central washer.
The first side magnetic structure 57 includes a first side magnetic steel, and the support frame 51 is disposed on the first side magnetic steel. It should be noted that, since the supporting frame 51 in this embodiment is made of a magnetically conductive material, it can play an equivalent role to a washer, so that no washer structure is required to be additionally provided on the first side magnetic steel.
The first diaphragm assembly 21 includes a first sound membrane and a first middle paste disposed on the first sound membrane, and the first sound membrane is connected to the support frame 51.
The second diaphragm assembly 31 includes a second sound film and a second middle paste disposed on the second sound film, where the second sound film connects the support frame 51 with the basin frame 1, and in other embodiments, the second sound film may also connect the basin frame 1 with the first side magnetic steel, and may specifically be set according to actual needs.
Optionally, the second vibration assembly 3 further includes a frame 33, and the second voice coil 32 is indirectly connected to the second diaphragm assembly 31 through the frame 33, so that more area of the second voice coil 32 extends into the second magnetic gap 42, thereby further improving the bass effect of the micro-speaker. In this embodiment, the number of the bobbins 33 is two, and the two bobbins 33 are in one-to-one correspondence with the two second voice coils 32.
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321099941.6U CN219876100U (en) | 2023-05-08 | 2023-05-08 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321099941.6U CN219876100U (en) | 2023-05-08 | 2023-05-08 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219876100U true CN219876100U (en) | 2023-10-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321099941.6U Active CN219876100U (en) | 2023-05-08 | 2023-05-08 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219876100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025129536A1 (en) * | 2023-12-21 | 2025-06-26 | 瑞声光电科技(常州)有限公司 | Coaxial loudspeaker |
-
2023
- 2023-05-08 CN CN202321099941.6U patent/CN219876100U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025129536A1 (en) * | 2023-12-21 | 2025-06-26 | 瑞声光电科技(常州)有限公司 | Coaxial loudspeaker |
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