CN219876101U - Miniature loudspeaker - Google Patents
Miniature loudspeaker Download PDFInfo
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- CN219876101U CN219876101U CN202321099952.4U CN202321099952U CN219876101U CN 219876101 U CN219876101 U CN 219876101U CN 202321099952 U CN202321099952 U CN 202321099952U CN 219876101 U CN219876101 U CN 219876101U
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- yoke
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- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The utility model discloses a micro-speaker, which comprises a first magnetic circuit assembly, a second vibration assembly and two first vibration assemblies, wherein the first magnetic circuit assembly comprises a magnetic conduction plate and a magnetic unit, and the top surface and the bottom surface of the magnetic conduction plate are respectively provided with the magnetic unit; the first vibration assembly comprises a first vibrating diaphragm assembly and a first voice coil, and the first vibrating diaphragm assembly is connected with the first voice coil and the first magnetic circuit assembly; the second magnetic circuit assembly comprises a yoke, a second central magnetic structure and a second side magnetic structure which are respectively connected to the yoke, the first magnetic circuit assembly is arranged on the yoke, the yoke is provided with an opening for exposing at least part of the first vibration assembly, and the two sides of the opening are respectively provided with the second central magnetic structure; the second vibration assembly comprises a second vibrating diaphragm assembly and two second voice coils, and the second vibrating diaphragm assembly is connected with the second voice coils and the first magnetic circuit assembly. The miniature loudspeaker has novel and compact structure and good high-low sound 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 chinese patent publication No. CN217721457U discloses a coaxial speaker, which comprises a high-pitched unit and a low-pitched unit, and in the actual use process, it is found that there is room for further enhancement of both the high-pitched effect and the low-pitched effect.
Disclosure of Invention
The utility model mainly aims to provide a miniature loudspeaker with a novel structure, and aims to solve the problem that the existing miniature loudspeaker is poor in high-low sound effect.
In order to solve the technical problems, the utility model adopts the following technical scheme: a micro-speaker, comprising:
the first magnetic circuit assembly comprises a magnetic conduction plate and a magnetic unit with a first magnetic gap, and the magnetic units are respectively arranged on the top surface and the bottom surface of the magnetic conduction plate;
the first vibration components are arranged on the first magnetic circuit component, and the first vibration components are in one-to-one correspondence with the magnetic units;
a basin stand;
the second magnetic circuit assembly is connected with the basin frame and comprises a yoke, a second central magnetic structure and a second side magnetic structure, wherein the second central magnetic structure and the second side magnetic structure are respectively connected to the yoke;
the second vibration assembly comprises a second vibration film assembly and two second voice coils, the second vibration film assembly is connected with the second voice coils, the first magnetic circuit assembly and the basin frame, the second voice coils move in the second magnetic gaps, the two second voice coils and the two second magnetic gaps are in one-to-one correspondence, and a central area of the second vibration assembly is provided with an avoidance window for avoiding the other first vibration assembly.
Further, the opening is located at a central region of the yoke.
Further, the second vibrating diaphragm assembly comprises a second sound membrane and a second middle paste arranged on the second sound membrane.
Further, the first vibration component comprises a first vibration film component, and the first vibration film component comprises a first sound film and a first middle paste arranged on the first sound film.
Further, the first vibration assembly further comprises a first voice coil, the magnetic unit comprises a first central magnetic structure and a first side magnetic structure, a first magnetic gap for the first voice coil to move is formed between the first central magnetic structure and the first side magnetic structure, and the first vibration membrane assembly is connected with the first voice coil and 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 magnetic conduction plate.
Further, the first side magnetic structure comprises first side magnetic steel and a first side washer, and the first side magnetic steel is connected with the first side washer and the magnetic conduction plate.
Further, the first sound membrane and the second sound membrane are respectively connected with the first side washer.
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 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.
The utility model has the beneficial effects that: the micro-speaker is novel in structure, has two high-pitched units and two low-pitched units, and the two low-pitched units share the second vibrating diaphragm assembly, so that the sensitivity, the high-pitched effect and the low-pitched effect of the micro-speaker are effectively improved, the acoustic performance of the micro-speaker is improved, the use experience of a user is enhanced, 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 schematic structural diagram of a micro-speaker according to another view of the first embodiment of the present utility model;
fig. 3 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 second vibration assembly; 21. a second diaphragm assembly; 22. a second voice coil; 23. a skeleton;
3. a first vibration assembly; 31. a first diaphragm assembly; 32. a first voice coil;
41. a magnetic conductive plate; 42. a first central magnetic structure; 43. a first side magnetic structure;
51. a first magnetic gap; 52. a second magnetic gap; 521. a first slit; 522. a second slit;
61. a yoke; 611. an opening; 62. a second central magnetic structure; 63. a second 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 to 3, a first embodiment of the present utility model is as follows: the miniature loudspeaker comprises a basin frame 1, a first magnetic circuit assembly, a second vibration assembly 2 and two first vibration assemblies 3, wherein the first magnetic circuit assembly comprises a magnetic conduction plate 41 and magnetic units with first magnetic gaps, the magnetic units are arranged on the top surface and the bottom surface of the magnetic conduction plate 41, each magnetic unit comprises a first central magnetic structure 42 and a first side magnetic structure 43, and a first magnetic gap 51 is formed between the first central magnetic structure 42 and the first side magnetic structure 43; the first vibration assembly 3 is arranged on the first magnetic circuit assembly, the first vibration assembly 3 corresponds to the magnetic units one by one, the first vibration assembly 3 comprises a first vibrating diaphragm assembly 31 and a first voice coil 32, the first vibrating diaphragm assembly 31 is connected with the first voice coil 32 and the first magnetic circuit assembly, the first voice coil 32 moves in the first magnetic gaps 51, and the two first voice coils 32 correspond to the two first magnetic gaps 51 one by one; the second magnetic circuit assembly is connected with the basin frame 1, the second magnetic circuit assembly comprises a yoke 61, a second central magnetic structure 62 and a second side magnetic structure 63 which are respectively connected with the yoke 61, the first magnetic circuit assembly is arranged on the yoke 61, the yoke 61 is provided with an opening 611 for exposing at least part of the first vibration assembly 3, the two sides of the opening 611 are respectively provided with the second central magnetic structure 62, the opening 611 is positioned in the central area of the yoke 61, a first gap 521 is formed between the second central magnetic structure 62 and the second side magnetic structure 63, a second gap 522 is formed between the second central magnetic structure 62 and the first magnetic circuit assembly, and the first gap 521 is communicated with the second gap 522 to form a second magnetic gap 52; the second vibration assembly 2 comprises a second vibration film assembly 21 and two second voice coils 22, the second vibration film assembly 21 is connected with the second voice coils 22, the first magnetic circuit assembly and the basin frame 1, the second voice coils 22 move in the second magnetic gaps 52, the two second voice coils 22 are in one-to-one correspondence with the two second magnetic gaps 52, and an avoidance window for avoiding the other first vibration assembly 3 is arranged in the central area of the second vibration assembly 2. In this embodiment, the first voice coil 32 is a high-pitch drive voice coil, and the second voice coil 22 is a low-pitch drive voice coil.
Alternatively, the material of the magnetic conductive plate 41 is the same as or different from the material of the yoke 61.
The first central magnetic structure 42 includes a first central magnetic steel and a first central washer, and the first central magnetic steel connects the first central washer and the magnetic conductive plate 41. The first side magnetic structure 43 includes a first side magnetic steel and a first side washer, and the first side magnetic steel connects the first side washer and the magnetic conductive plate 41.
The second central magnetic structure 62 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 61. The second side magnetic structure 63 includes a second side magnetic steel and a second Bian Huasi, the second side magnetic steel connects the second Bian Huasi and the yoke 61, and the second Bian Huasi connects the basin frame 1. Preferably, the magnetic conductive plate 41 is aligned with the second central washer in a horizontal direction.
The first diaphragm assembly 31 connects the first voice coil 32 with the first side magnetic structure 43. In detail, the first diaphragm assembly 31 includes a first sound film and a first middle paste disposed on the first sound film, the first sound film is connected to the first side magnetic structure 43, and in more detail, the first sound film is connected to the first side washer.
The second diaphragm assembly 21 includes a second sound film and a second middle paste disposed on the second sound film, in this embodiment, the second sound film is connected to the first side magnetic structure 43, specifically, the second sound film is connected to the first side washer.
In this embodiment, the second Bian Huasi 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 sound membrane and the second sound membrane, so as to ensure structural stability of the micro speaker.
Optionally, the second vibration assembly 2 further includes a frame 23, and the second voice coil 22 is indirectly connected to the second diaphragm assembly 21 through the frame 23, so that more area of the second voice coil 22 extends into the second magnetic gap 52, thereby further improving the bass effect of the micro-speaker. In this embodiment, the number of the bobbins 23 is two, and the two bobbins 23 are in one-to-one correspondence with the two second voice coils 22.
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
The first magnetic circuit assembly comprises a magnetic conduction plate and a magnetic unit with a first magnetic gap, and the top surface and the bottom surface of the magnetic conduction plate are respectively provided with the magnetic unit;
the first vibration components are arranged on the first magnetic circuit components and correspond to the magnetic units one by one;
a basin stand;
the second magnetic circuit assembly is connected with the basin frame and comprises a yoke, a second central magnetic structure and a second side magnetic structure which are respectively connected to the yoke, the first magnetic circuit assembly is arranged on the yoke, the yoke is provided with an opening for exposing at least part of the first vibration assembly, the two sides of the opening are respectively provided with the second central magnetic structure, a first gap is formed between the second central magnetic structure and the second side magnetic structure, a second gap is formed between the second central magnetic structure and the first magnetic circuit assembly, and the first gap is communicated with the second gap to form a second magnetic gap;
the second vibration assembly comprises a second vibration film assembly and two second voice coils, the second vibration film assembly is connected with the second voice coil, the first magnetic circuit assembly and the basin frame, the second voice coil moves in the second magnetic gap, and a avoidance window for avoiding the other first vibration assembly is arranged in the central area of the second vibration assembly.
2. A micro-speaker as claimed in claim 1, wherein: the opening is located in a central region of the yoke.
3. A micro-speaker as claimed in claim 1, wherein: the second vibrating diaphragm assembly comprises a second sound membrane and a second middle paste arranged on the second sound membrane.
4. A micro-speaker as claimed in claim 1, wherein: the first vibration component comprises a first vibrating diaphragm component, and the first vibrating diaphragm component comprises a first sound membrane and a first middle paste arranged on the first sound membrane.
5. A micro-speaker as claimed in claim 4, wherein: the first vibration assembly further comprises a first voice coil, the magnetic unit comprises a first central magnetic structure and a first side magnetic structure, a first magnetic gap for the first voice coil to move is formed between the first central magnetic structure and the first side magnetic structure, and the first vibration film assembly is connected with the first voice coil and the first side magnetic structure.
6. A micro-speaker as claimed in claim 5, wherein: 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 magnetic conduction plate.
7. A micro-speaker as claimed in claim 5, wherein: the first side magnetic structure comprises first side magnetic steel and a first side washer, and the first side magnetic steel is connected with the first side washer and the magnetic conduction plate.
8. A micro-speaker as claimed in claim 7, wherein: the first sound membrane and the second sound membrane are respectively connected with the first side washer.
9. A micro-speaker as claimed in claim 1, wherein: 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.
10. A micro-speaker as claimed in claim 1, wherein: the second side magnetic structure comprises second side magnetic steel and 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321099952.4U CN219876101U (en) | 2023-05-08 | 2023-05-08 | Miniature loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321099952.4U CN219876101U (en) | 2023-05-08 | 2023-05-08 | Miniature loudspeaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219876101U true CN219876101U (en) | 2023-10-20 |
Family
ID=88339260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321099952.4U Active CN219876101U (en) | 2023-05-08 | 2023-05-08 | Miniature loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219876101U (en) |
-
2023
- 2023-05-08 CN CN202321099952.4U patent/CN219876101U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |