CN219019023U

CN219019023U - Micro speaker module

Info

Publication number: CN219019023U
Application number: CN202223123347.4U
Authority: CN
Inventors: 张俊利; 张文华; 沙金辉; 莫金兰
Original assignee: Shenzhen Weishi Acoustics Co Ltd
Current assignee: Shenzhen Weishi Acoustics Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-12
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a miniature loudspeaker module, which comprises a loudspeaker monomer, a module shell and a steel sheet, wherein the module shell is provided with a window corresponding to the loudspeaker monomer; the steel sheet is embedded on the module shell and seals the window, the steel sheet is provided with a welding part, and the welding part is welded with the loudspeaker unit. The welding part is additionally arranged on the steel sheet corresponding to the sound cavity of the micro-speaker module, and the speaker monomer is welded with the welding part, so that the speaker monomer can be firmly connected with the module shell, the problem that the speaker monomer moves or falls off when the micro-speaker module falls down is solved, the structural stability of the micro-speaker module is improved, and the use experience of consumers is enhanced. The miniature loudspeaker module is especially suitable for application occasions of light weight, large amplitude and no space for arranging resonance cotton.

Description

Micro speaker module

Technical Field

The utility model relates to the technical field of electroacoustic converters, in particular to a miniature loudspeaker module.

Background

At present, electronic devices such as mobile phones and flat panels are increasingly designed to be thinner along with the development of times, and resonance cotton cannot be added when part of speaker modules are designed. However, with the development of industry, requirements of drop tests of speaker modules are becoming more and more strict. At the user end, when the electronic equipment falls, the problems of movement or falling of a loudspeaker monomer and the like often occur, and the use of consumers is seriously influenced.

Disclosure of Invention

The technical problems solved by the utility model are as follows: a micro speaker module with good structural stability is provided.

In order to solve the technical problems, the utility model adopts the following technical scheme: the micro speaker module includes:

a speaker unit;

a module case having a window provided corresponding to the speaker unit;

the steel sheet is embedded on the module shell and seals the window, the steel sheet is provided with a welding part, and the welding part is welded with the loudspeaker unit.

Further, the module housing and the steel sheet are of an integrated structure formed through an insert injection molding process.

Further, a glue grabbing part is arranged on the steel sheet, and the glue grabbing part is embedded into the module shell.

Further, the speaker unit includes a yoke, and the welding portion is welded to the yoke.

Further, the speaker unit comprises a basin frame made of metal, and the welding part is welded with the basin frame.

Further, the speaker unit further comprises a voice coil and a support assembly, the support assembly is connected with the voice coil and the basin frame, an avoidance groove is formed in the support assembly, and the avoidance groove is close to the welding portion.

Further, the welding parts are correspondingly arranged on the long side and/or the short side of the loudspeaker unit.

Further, the welding part is arranged along the edge of the steel sheet, and the whole welding part is in a ring frame shape.

Further, the number of the welded portions is plural.

Further, the steel sheet is rectangular, and at least one group of opposite sides of the steel sheet are symmetrically provided with the welding parts.

The utility model has the beneficial effects that: the welding part is additionally arranged on the steel sheet corresponding to the sound cavity of the micro-speaker module, and the speaker monomer is welded with the welding part, so that the speaker monomer can be firmly connected with the module shell, the problem that the speaker monomer moves or falls off when the micro-speaker module falls down is solved, the structural stability of the micro-speaker module is improved, and the use experience of consumers is enhanced. The miniature loudspeaker module is especially suitable for application occasions of light weight, large amplitude and no space for arranging resonance cotton.

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 module according to a first embodiment of the present utility model;

fig. 2 is a sectional view of a partial area of a micro speaker module according to a first embodiment of the present utility model;

FIG. 3 is a simplified schematic diagram of a steel plate in a micro-speaker module according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a micro-speaker module according to a second embodiment of the present utility model;

fig. 5 is a cross-sectional view of a partial area of a micro speaker module according to a second embodiment of the present utility model.

Reference numerals illustrate:

1. a module housing; 11. a front acoustic cavity;

2. a speaker unit; 21. a basin stand; 22. a magnetic circuit assembly; 221. a yoke; 2211. a body; 2212. an extension arm; 222. a center magnetic steel; 23. a vibration assembly; 24. a support assembly; 241. an avoidance groove;

3. a steel sheet; 31. a welding part; 32. and a glue grabbing 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 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 this application, unless specifically stated 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 terms in this application will be understood by those of ordinary skill in the art as the case may be.

Example 1

Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows: the micro speaker module can be applied to electronic equipment such as mobile phones, intelligent watches, tablet computers, game handles and the like.

The miniature loudspeaker module comprises a steel sheet 3, a module shell 1 and a loudspeaker monomer 2 arranged in the module shell 1, wherein an acoustic cavity is surrounded by the loudspeaker monomer 2 and the module shell 1, a window communicated with the acoustic cavity is arranged on the module shell 1 corresponding to the loudspeaker monomer 2, the steel sheet 3 is embedded on the module shell 1 and seals the window, the steel sheet 3 is provided with a welding part 31, and the welding part 31 is welded with the loudspeaker monomer 2. The matching of the windowing and the steel sheet 3 ensures that the area of the module housing 1 corresponding to the speaker unit 2 has enough strength, and simultaneously, the volume of the sound cavity can be increased, thereby improving the acoustic performance of the micro speaker module. The sound cavity includes preceding sound cavity 11 and back sound cavity, preceding sound cavity 11 and back sound cavity do not communicate the setting, still be equipped with the intercommunication on the module shell 1 the sound hole of preceding sound cavity 11, in this embodiment, the windowing intercommunication preceding sound cavity 11.

The loudspeaker unit 2 comprises a basin frame 21, a magnetic circuit assembly 22 and a vibration assembly 23, the magnetic circuit assembly 22 comprises a yoke 221, a magnetic steel assembly and a washer assembly, the magnetic steel assembly is connected with the washer assembly and the yoke 221, the magnetic steel assembly comprises a central magnetic steel 222 and a plurality of side magnetic steels, the central magnetic steel 222 is positioned between at least one group of two side magnetic steels which are oppositely arranged, a magnetic gap is formed between the central magnetic steel 222 and the side magnetic steels, the washer assembly comprises a central washer and a washer assembly Bian Huasi, the central washer is arranged corresponding to the central magnetic steel 222 and is connected with the central magnetic steel 222, and the Bian Huasi is arranged corresponding to the side magnetic steels and is connected with the side magnetic steels; the vibration assembly 23 comprises a vibration membrane assembly and a voice coil arranged on one side, close to the yoke 221, of the vibration membrane assembly, and one end, far away from the vibration membrane assembly, of the voice coil is located in the magnetic gap.

The long side and/or the short side of the speaker unit 2 are correspondingly provided with the welding parts 31. Specifically, the yoke 221 is welded to the welded portion 31, that is, the long side and/or the short side of the yoke 221 are welded to the welded portion 31. Preferably, the yoke 221 is laser welded to the welded portion 31.

The module housing 1 and the steel sheet 3 are of an integrated structure formed by an insert injection molding process. Preferably, the steel sheet 3 is provided with a glue grabbing portion 32, the glue grabbing portion 32 is embedded into the module housing 1, and the glue grabbing capability of the steel sheet 3 can be improved due to the arrangement of the glue grabbing portion 32, so that the binding force between the steel sheet 3 and the module housing 1 is enhanced, the steel sheet 3 is prevented from being accidentally separated from the module housing 1, and the structural stability of the micro-speaker module is further improved.

The number of the welding parts 31 is one or more, and when the number of the welding parts 31 is one, in order to improve the structural stability of the micro-speaker module to the greatest extent, in some embodiments, the welding parts 31 are integrally in a ring frame shape, at this time, the welding parts 31 are disposed along the edge of the steel sheet 3, and the welding parts 31 surround the speaker unit 2. Of course, when the number of the welding parts 31 is one, it is possible that the welding parts 31 are formed in a sheet shape, an L shape, or a concave shape.

When the number of the welding parts 31 is plural, each welding part 31 is welded with the yoke 221, and optionally, the steel sheet 3 is rectangular, and at least one group of opposite sides of the steel sheet 3 are symmetrically provided with the welding parts 31. In this embodiment, the welding parts 31 are respectively provided at both ends of the yoke 221, that is, the short sides of the yoke 221 are connected to the welding parts 31. In order to balance the stress of the speaker unit 2, the welding parts 31 at both ends of the yoke 221 are symmetrically arranged.

Optionally, the yoke 221 includes a body 2211 and an extension arm 2212 connected, and the extension arm 2212 is welded to the welding portion 31.

Example two

Referring to fig. 3 to 5, a second embodiment of the present utility model is as follows: the micro speaker module can be applied to electronic equipment such as mobile phones, intelligent watches, tablet computers, game handles and the like.

In this embodiment, the basin stand 21 is made of metal, and the welding portion 31 is welded to the basin stand 21. The basin stand 21 made of metal has the advantages of high strength and high heat dissipation, and is particularly suitable for being applied to large-amplitude loudspeaker products.

The long side and/or the short side of the speaker unit 2 are correspondingly provided with the welding parts 31. Specifically, the yoke 221 is welded to the welding portion 31, that is, the long side and/or the short side of the tub 21 are welded to the welding portion 31. Preferably, the tub 21 is laser welded to the welding part 31.

When the number of the welding parts 31 is plural, each welding part 31 is welded with the basin frame 21, and optionally, the steel sheet 3 is rectangular, and at least one group of opposite sides of the steel sheet 3 are symmetrically provided with the welding parts 31. In this embodiment, the two ends of the basin stand 21 are respectively provided with the welding parts 31, that is, the short sides of the basin stand 21 are connected with the welding parts 31. In order to balance the stress of the speaker unit 2, the welding parts 31 at the two ends of the basin stand 21 are symmetrically arranged.

Optionally, the speaker unit 2 further includes a support assembly 24, where the support assembly 24 connects the voice coil with the frame 21, and the support assembly 24 is used for correcting the voice coil, so as to improve rolling and polarization phenomena of the voice coil, and the support assembly 24 includes a secondary membrane and/or a centering support sheet. The support assembly 24 is provided with an avoidance groove 241, the avoidance groove 241 is close to the welding portion 31, and the avoidance groove 241 is used for avoiding welding points of the welding portion 31 and the basin frame 21, so that the support assembly 24 is prevented from obstructing welding of the basin frame 21 and the welding portion 31.

In some embodiments, it is also possible that the welding portion 31 is welded to both the yoke 221 and the tub 21.

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

1. Miniature speaker module, its characterized in that: comprising

A speaker unit;

a module case having a window provided corresponding to the speaker unit;

2. The micro-speaker module according to claim 1, wherein: the module shell and the steel sheet are of an integrated structure formed through an insert injection molding process.

3. The micro-speaker module according to claim 1, wherein: and the steel sheet is provided with a glue grabbing part, and the glue grabbing part is embedded into the module shell.

4. The micro-speaker module according to claim 1, wherein: the speaker unit includes a yoke, and the welding portion is welded to the yoke.

5. The micro-speaker module according to claim 1, wherein: the loudspeaker unit comprises a basin frame made of metal, and the welding part is welded with the basin frame.

6. The micro-speaker module according to claim 5, wherein: the loudspeaker unit further comprises a voice coil and a supporting component, wherein the supporting component is connected with the voice coil and the basin frame, an avoidance groove is formed in the supporting component, and the avoidance groove is close to the welding part.

7. The micro-speaker module according to claim 1, wherein: the long side and/or the short side of the loudspeaker unit are correspondingly provided with the welding parts.

8. The micro-speaker module according to claim 1, wherein: the welding part is arranged along the edge of the steel sheet, and the whole welding part is in a ring frame shape.

9. The micro-speaker module according to claim 1, wherein: the number of the welding parts is plural.

10. The micro-speaker module according to claim 9, wherein: the steel sheet is rectangular, and at least one group of opposite sides of the steel sheet are symmetrically provided with the welding parts.