CN219204675U

CN219204675U - Micro loudspeaker monomer and loudspeaker module

Info

Publication number: CN219204675U
Application number: CN202223123362.9U
Authority: CN
Inventors: 沙金辉; 张俊利; 张文华; 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: 2023-06-16
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a micro-speaker monomer and a speaker module, wherein the micro-speaker monomer comprises a magnetic circuit assembly and a metal basin frame, the magnetic circuit assembly comprises a yoke, the yoke is provided with a flanging, and the metal basin frame is welded with the flanging. In the micro-speaker monomer, metal basin frame and yoke welding have strengthened metal basin frame and magnetic circuit assembly's joint strength to improved micro-speaker monomer's structural stability, promoted micro-speaker monomer's reliability, reduced micro-speaker monomer drop test time, the risk of magnetic circuit assembly and metal basin frame separation has improved micro-speaker monomer's magnetic phenomenon of falling.

Description

Micro loudspeaker monomer and loudspeaker module

Technical Field

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

Background

The miniature loudspeaker unit comprises a basin frame, and a vibration assembly and a magnetic circuit assembly which are respectively connected with the basin frame, wherein the magnetic circuit assembly comprises a yoke, magnetic steel and a washer, the magnetic steel is respectively connected with the washer and the yoke, and the washer and the basin frame are in adhesive connection with each other for the basin frame made of metal materials, namely, the magnetic circuit assembly and the metal basin frame are connected and fixed in an adhesive mode.

However, the bonding strength between the adhesively connected magnetic circuit assembly and the metal basin frame is not very high, and the magnetic circuit assembly is easily separated from the basin frame due to the phenomenon of magnetic loss during drop test. That is, the structural reliability of the existing micro speaker unit is to be improved.

Disclosure of Invention

The technical problems solved by the utility model are as follows: a micro-speaker unit with stable structure and a speaker module with the micro-speaker unit are provided.

In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows: a micro-speaker unit comprising:

the magnetic circuit assembly comprises a yoke, wherein the yoke is provided with a flanging;

the metal basin frame is welded with the flanging.

Further, the magnetic circuit assembly further comprises a magnetic steel assembly and a washer assembly, the yoke comprises a body connected with the flanging, the magnetic steel assembly is connected with the washer assembly and the body, and the magnetic steel assembly and the flanging are located on the same side of the body.

Further, the turnup edge is arranged at the edge of the body, and the turnup is in a ring frame shape as a whole.

Further, the body is rectangular.

Further, the corner of the body is provided with an avoidance groove, and the flange is connected with a connecting arm of the body, wherein the connecting arm is positioned in the avoidance groove.

Further, the long side and/or the short side of the body are/is connected with the flanging.

Further, the number of the flanging is a plurality.

Further, the metal basin frame comprises a frame-shaped part and an extending part which are connected, the extending part is positioned at the inner side of the frame-shaped part, and the extending part is welded with the flanging.

Further, an end portion of the flange, which is far away from one end of the body, is located at the inner side of the extension portion, and the flange and the extension portion form a corner structure.

In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows: the speaker module comprises the micro speaker monomer.

The utility model has the beneficial effects that: in the micro-speaker monomer, metal basin frame and yoke welding have strengthened metal basin frame and magnetic circuit assembly's joint strength to improved micro-speaker monomer's structural stability, promoted micro-speaker monomer's reliability, reduced micro-speaker monomer drop test time, the risk of magnetic circuit assembly and metal basin frame separation has improved micro-speaker monomer's magnetic phenomenon of falling.

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 bottom view of a micro speaker unit according to a first embodiment of the present utility model;

fig. 2 is a cross-sectional view taken along line A-A of fig. 1.

Reference numerals illustrate:

1. a metal basin stand; 11. a frame-like portion; 12. an extension;

2. a magnetic circuit assembly; 21. a yoke; 211. a body; 2111. an avoidance groove; 212. flanging; 213. a connecting arm; 22. a center magnetic steel; 23. edge magnetic steel;

3. a vibration assembly; 31. a diaphragm assembly; 32. a voice coil;

4. a support assembly;

5. corner 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 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 and 2, a first embodiment of the utility model is as follows: the micro speaker monomer can be applied to electronic equipment such as mobile phones, tablet computers, notebook computers, intelligent watches, game handles, headphones and the like.

The miniature loudspeaker unit comprises a metal basin frame 1, a magnetic circuit assembly 2, a vibration assembly 3 and a support assembly 4, wherein the magnetic circuit assembly 2 comprises a yoke 21, a magnetic steel assembly and a washer assembly, the magnetic steel assembly is connected with the washer assembly and the yoke 21 and comprises a central magnetic steel 22 and a plurality of side magnetic steels 23, the central magnetic steel 22 is positioned between at least one group of two side magnetic steels 23 which are oppositely arranged, a magnetic gap is formed between the central magnetic steel 22 and the side magnetic steels 23, the washer assembly comprises a central washer and Bian Huasi, the central washer is arranged corresponding to the central magnetic steel 22 and is connected with the central magnetic steel 22, and the Bian Huasi is arranged corresponding to the side magnetic steel 23 and is connected with the side magnetic steels 23; the vibration assembly 3 comprises a vibration film assembly 31 and a voice coil 32 arranged on one side of the vibration film assembly 31 close to the yoke 21, wherein one end of the voice coil 32 away from the vibration film assembly 31 is positioned in the magnetic gap; the support component 4 is connected with the voice coil 32 and the metal basin frame 1, the support component 4 is used for correcting the voice coil 32, so that rolling vibration and polarization phenomena of the voice coil 32 are improved, and the support component 4 comprises an auxiliary film and/or a centering support sheet. The metal basin frame 1 has the advantages of high strength and high heat dissipation, and is particularly suitable for being applied to large-amplitude loudspeaker products.

The yoke 21 comprises a body 211 and a flange 212 which are connected, the magnetic steel component is arranged on the body 211, the magnetic steel component and the flange 212 are positioned on the same side of the body 211, and the metal basin frame 1 is welded with the flange 212. Optionally, the metal basin stand 1 is welded with the flange 212 by laser.

The number of the flanges 212 is one or more, and preferably the number of the flanges 212 is a plurality. In this embodiment, the number of the flanges 212 is four, in detail, the main body 211 is rectangular, and four corners of the main body 211 are respectively provided with an avoidance groove 2111, where the avoidance grooves 2111 are used for avoiding the support assembly 4, so as to ensure that the support assembly 4 does not collide with the yoke 21 to generate noise when the micro-speaker unit vibrates with large amplitude; the yoke 21 further includes a connecting arm 213 connecting the flange 212 and the body 211, and the connecting arm 213 is located in the avoidance groove 2111. In other embodiments, the flange 212 is attached to the long side and/or the short side of the body 211.

As an extension, the flange 212 is disposed along the edge of the main body 211, that is, the flange 212 is integrally in a ring frame shape, so that the metal basin stand 1 and the flange 212 have a plurality of welding points, and the structural stability of the micro-speaker unit can be improved to a greater extent. Also, at this time, the shape of the body 211 is not limited to a rectangle.

Optionally, the metal frame 1 includes a frame portion 11 and an extension portion 12 connected to each other, the extension portion 12 is located inside the frame portion 11, and the extension portion 12 is welded to the flange 212. Preferably, the end of the flange 212 away from the end of the body 211 is located inside the extension 12, and the flange 212 and the extension 12 form the corner structure 5. The flange 212 and the extension portion 12 can be used for positioning and mounting the magnetic circuit assembly 2 and the metal basin frame 1 to a certain extent, so that the production consistency of the micro-speaker unit is improved, and more importantly, the flange 212 and the extension portion 12 can form a corner structure 5, so that welding operation of the flange 212 and the extension portion 12 is facilitated. In this embodiment, the corner structure 5 is a right-angle structure, and in other embodiments, the corner structure 5 may be an acute-angle structure or an obtuse-angle structure.

The embodiment also provides a speaker module, which comprises the micro speaker unit. Specifically, the speaker module further comprises a module housing, and the micro speaker unit is arranged in the module housing. In practical application, the module housing may be a separate structure independent of the electronic device, or may be a part or all of the area of the structural member of the electronic device.

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. A miniature speaker unit, characterized in that: comprising

the metal basin frame is welded with the flanging.

2. A micro-speaker unit according to claim 1, wherein: the magnetic circuit assembly further comprises a magnetic steel assembly and a washer assembly, the yoke comprises a body connected with the flanging, the magnetic steel assembly is connected with the washer assembly and the body, and the magnetic steel assembly and the flanging are located on the same side of the body.

3. A micro-speaker unit according to claim 2, wherein: the turnup edge is arranged at the edge of the body, and the turnup is integrally in a ring frame shape.

4. A micro-speaker unit according to claim 2, wherein: the body is rectangular.

5. The micro-speaker unit according to claim 4, wherein: the corner of the body is provided with an avoidance groove, and the flange is connected with a connecting arm of the body, wherein the connecting arm is positioned in the avoidance groove.

6. The micro-speaker unit according to claim 4, wherein: the long side and/or the short side of the body are/is connected with the flanging.

7. A micro-speaker unit according to claim 2, wherein: the number of the turnups is multiple.

8. A micro-speaker unit according to claim 2, wherein: the metal basin frame comprises a frame-shaped part and an extending part which are connected, wherein the extending part is positioned at the inner side of the frame-shaped part, and the extending part is welded with the flanging.

9. The micro-speaker unit according to claim 8, wherein: the end part of one end of the flanging, which is far away from the body, is positioned on the inner side of the extension part, and the flanging and the extension part form a corner structure.

10. Speaker module, its characterized in that: comprising a micro-speaker unit according to any one of claims 1-9.