CN224083686U

CN224083686U - Miniature speaker

Info

Publication number: CN224083686U
Application number: CN202520603920.6U
Authority: CN
Inventors: 张俊利; 杨凤伟; 周冰洋
Original assignee: Shenzhen Weishi Acoustics Co Ltd
Current assignee: Shenzhen Weishi Acoustics Co Ltd
Priority date: 2025-04-01
Filing date: 2025-04-01
Publication date: 2026-04-03
Anticipated expiration: 2035-04-01

Abstract

This utility model discloses a miniature loudspeaker, including a frame and a magnetic circuit assembly. The frame has a notch that connects to the bottom surface of the frame. The magnetic circuit assembly includes a washer, which includes a vertically connected protrusion and a recessed portion. The end of the protrusion away from the recessed portion extends into the notch and is bonded to the frame. At least one side of the protrusion has an extension located inside the frame and bonded to it. This miniature loudspeaker has a novel structure. The washer has an extension located inside the frame and bonded to it, thereby increasing the bonding area between the frame and the washer, which improves the bonding and fixation effect, and thus enhances the structural stability of the miniature loudspeaker. In addition, the presence of the extension increases the overall volume of the washer, which can enhance the magnetic conductivity of the washer to a certain extent, thereby improving the magnetic field of the miniature loudspeaker and improving its acoustic performance.

Description

Micro-speaker

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 electronic devices such as mobile phones, notebook computers, telephone watches and the like.

In the prior art, the basin frame of the micro-speaker is generally adhered and fixed with Bian Huasi, but part of the micro-speaker is used for increasing the volume of the side magnetic structure in the magnetic circuit assembly of the micro-speaker, the gap is arranged on the basin frame to enable the part of the area of the side magnetic structure to extend out, at the moment, the whole side magnetic structure is in a convex shape, the inner top surface of the gap on the basin frame is adhered and fixed with the top surface of Bian Huasi, however, the wall thickness of the basin frame cannot be too thick, otherwise, the inner space of the micro-speaker is excessively occupied to influence the acoustic performance of the micro-speaker, the adhesion area of the basin frame and Bian Huasi is small, the connection of the basin frame and the Bian Huasi is not stable, and the structural stability of the micro-speaker is influenced.

Disclosure of utility model

The utility model solves the technical problem of providing the miniature loudspeaker with the stable connection between the edge washer and the basin stand.

In order to solve the technical problems, the utility model adopts the technical scheme that the micro loudspeaker comprises:

the basin stand is provided with a notch which is communicated with the bottom surface of the basin stand;

The magnetic circuit assembly comprises Bian Huasi, the Bian Huasi comprises a protruding portion and an inner portion which are vertically connected, one end of the protruding portion, far away from the inner portion, stretches into the opening and is fixedly bonded with the basin frame, at least one side of the protruding portion is provided with an extending portion, and the extending portion is located on the inner side of the basin frame and is bonded with the basin frame.

In an embodiment, the two sides of the protruding portion are respectively provided with the extending portion.

In one embodiment, bian Huasi is a planar symmetrical structure.

In an embodiment, the protruding portion and the inner portion are integrally formed as a one-piece structure.

In one embodiment, the extension and the projection are integrally formed as a one-piece structure.

In an embodiment, an inner area of the top surface of Bian Huasi is provided with a relief groove.

In one embodiment, the loudspeaker further comprises a centering support piece and a voice coil, wherein the centering support piece comprises an inner mounting part, a cantilever part and an outer mounting part which are sequentially connected, the outer mounting part is connected with the basin frame, the inner mounting part is connected with the voice coil, and when the miniature loudspeaker is seen from a bottom view perspective, a part of the area of the centering support piece overlaps with the extension part.

In an embodiment, when the micro-speaker is seen in a bottom view, a partial area of a connection portion of the cantilever portion and the outer mounting portion overlaps the extension portion.

The miniature loudspeaker has the beneficial effects that the miniature loudspeaker is novel in structure, bian Huasi is provided with the extension part, and the extension part is positioned on the inner side of the basin frame and is bonded with the basin frame, so that the bonding area of the basin frame and Bian Huasi is increased, the bonding and fixing effect of the basin frame and Bian Huasi is improved, and the structural stability of the miniature loudspeaker is further enhanced. In addition, the existence of the extension part increases the whole volume of Bian Huasi, and can enhance the magnetic conduction effect of Bian Huasi to a certain extent, thereby improving the magnetic field of the micro-speaker and improving the acoustic performance of the micro-speaker.

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 an internal structure of a micro-speaker according to a first embodiment of the present utility model;

fig. 2 is a bottom view of a micro speaker of the first embodiment of the present utility model after hiding a yoke;

Fig. 3 is a schematic structural diagram of Bian Huasi in a micro-speaker according to a first embodiment of the present utility model.

Reference numerals illustrate:

1. 11, a notch;

2. A voice coil;

3. Magnetic circuit assembly, 31, yoke, 32, central magnetic structure, 33, side magnetic structure, 331, side magnetic steel, 332, bian Huasi, 3321, protruding part, 3322, inner part, 3323, extension part, 3324, avoiding groove, 4, centering support piece, 41, inner mounting part, 42, cantilever part, 43 and outer mounting 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 present utility model includes a frame 1, a vibration assembly and a magnetic circuit assembly 3, wherein the vibration assembly includes a diaphragm assembly and a voice coil 2 connected to each other, the voice coil 2 is located inside the frame 1, and the diaphragm assembly is connected to the frame 1; the basin frame 1 is provided with a notch 11, the notch 11 is communicated with the bottom surface of the basin frame 1, the magnetic circuit component 3 comprises a yoke 31, a central magnetic structure 32 and a side magnetic structure 33, the central magnetic structure 32 is positioned between at least one group of two side magnetic structures 33 which are oppositely arranged, a magnetic gap for the voice coil 2 to move is formed between the central magnetic structure 32 and the side magnetic structure 33, the central magnetic structure 32 comprises a central magnetic steel and a central washer, the central washer is positioned above the central magnetic steel, the central magnetic steel is respectively connected with the central washer and the yoke 31, a part of the side magnetic structure 33 extends into the notch 11, the side magnetic structure 33 comprises side magnetic steels 331 and Bian Huasi 332, the Bian Huasi is positioned above the side magnetic steel 331, the side magnetic steel 331 is connected with the yoke 31, the side magnetic steel 331 is in a convex shape, the Bian Huasi comprises a bulge 3321 and an inner bulge 3322 which are vertically connected, the bulge 3321 is formed on one side of the basin frame 23, and the bulge 3322 is formed on one side of the inner side of the basin frame 1, the bulge 3321 is far from the inner bulge 3323, the bulge 3323 is formed on one side of the inner side of the basin frame 1, and the bulge 3323 is formed on one side of the inner side of the bulge 3323, the extension portion 3323 and the protruding portion 3321 are integrally formed as a one-piece structure.

In some embodiments, the protruding portion 3321 may have the extending portion 3323 on only one side, and in this embodiment, the extending portions 3323 are respectively provided on both sides of the protruding portion 3321, that is, the Bian Huasi 332 is substantially shaped like a Chinese character 'tu', so that the adhesion stability of the Bian Huasi and the basin frame 1 can be enhanced to a greater extent. Preferably, bian Huasi 332,332 has a plane symmetrical structure.

The inner part 3322 is positioned at the inner side of the basin frame 1, and a partial area of the top surface of the protruding part 3321 is adhered to the inner top surface of the opening 11, so as to improve the stability of Bian Huasi 332,332 in connection with the basin frame 1 to a greater extent, and optionally, at least one side surface of the protruding part 3321 is adhered to the side edge of the opening 11. Preferably, one side of the protruding portion 3321 is adhered to one side of the opening 11, and the other side of the protruding portion 3321 is adhered to the other side of the opening 11, that is, two sides of the protruding portion 3321 are adhered and fixed to two sides of the opening 11.

In order to avoid the vibration membrane assembly from colliding Bian Huasi to 332 during vibration so as to generate noise, an inner area of the top surface of Bian Huasi is optionally provided with a avoiding groove 3324.

In one or more embodiments, the micro-speaker further comprises a centering support 4, wherein the centering support 4 comprises an inner mounting part 41, a cantilever part 42 and an outer mounting part 43 which are sequentially connected, the outer mounting part 43 is connected with the basin frame 1, the inner mounting part 41 is connected with the voice coil 2, and when the micro-speaker is seen from bottom view, a part of the area of the centering support 4 overlaps with the extension part 3323 (as shown in fig. 2), that is, the existence of the extension part 3323 does not affect the deformation of the centering support 4 and does not collide with the centering support 4. Specifically, when the micro speaker is seen in a bottom view, a partial region of the junction of the cantilever portion 42 and the outer mounting portion 43 overlaps the extension portion 3323.

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. The micro-speaker is characterized by comprising

2. The micro-speaker of claim 1, wherein the extension is provided on both sides of the protrusion.

3. The micro-speaker of claim 2, wherein Bian Huasi is a planar symmetrical structure.

4. The micro-speaker of claim 1, wherein the protrusion and the recess are integrally formed as a unitary structure.

5. The micro-speaker of claim 1, wherein the extension and the projection are integrally formed as a unitary structure.

6. The micro-speaker of claim 1, wherein the interior region of the top surface of Bian Huasi is provided with a relief groove.

7. The micro-speaker of claim 1, further comprising a centering support and a voice coil, wherein the centering support comprises an inner mounting portion, a cantilever portion and an outer mounting portion connected in sequence, the outer mounting portion is connected to the frame, the inner mounting portion is connected to the voice coil, and a partial region of the centering support overlaps the extension portion when the micro-speaker is seen in a bottom view.

8. The micro-speaker as set forth in claim 7, wherein a partial area of a junction of the cantilever portion and the outer mounting portion overlaps with the extension portion when the micro-speaker is seen in a bottom view.