CN224083690U

CN224083690U - Miniature speaker

Info

Publication number: CN224083690U
Application number: CN202520607809.4U
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

The utility model discloses a miniature loudspeaker, which comprises a basin frame and a magnetic circuit component, wherein the basin frame is provided with a notch which is communicated with the bottom surface of the basin frame, the inner top surface of the notch is provided with a plurality of grooves extending upwards, the magnetic circuit component comprises a yoke iron and a side magnetic structure, the whole side magnetic structure is in a convex shape, part of the area of the side magnetic structure extends into the notch, the side magnetic structure comprises side magnetic steel and Bian Huasi, a washer and the yoke iron are connected while the magnetic steel is connected, the top surface of Bian Huasi is provided with a convex block which extends into the grooves, the top surface and the side surface of the convex block are respectively bonded with the basin frame, and the top surface of Bian Huasi is bonded with the inner top surface of the notch. The miniature loudspeaker is novel in structure, the basin frame is provided with the groove, bian Huasi is provided with the convex blocks extending into the groove, and each surface of each convex block is bonded with the basin frame, so that the bonding area of the basin frame and Bian Huasi is increased, the bonding and fixing effects of the basin frame and Bian Huasi are improved, and the structural stability of the miniature loudspeaker is further enhanced. In addition, the presence of the bump enhances the magnetic conduction effect of Bian Huasi.

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, and the inner top surface of the notch is provided with a plurality of grooves extending upwards;

The magnetic circuit assembly comprises a yoke and a side magnetic structure, the whole side magnetic structure is in a convex shape, a partial area of the side magnetic structure stretches into the opening, the side magnetic structure comprises side magnetic steel and Bian Huasi, the side magnetic steel is connected with the Bian Huasi and the yoke, the top surface of the Bian Huasi is provided with a protruding block stretching into the groove, the top surface and the side surface of the protruding block are respectively bonded with the basin frame, and the top surface of the Bian Huasi is bonded with the inner top surface of the opening.

In one embodiment, the number of the bumps on the Bian Huasi is one, and the bumps are disposed corresponding to the central axis of the Bian Huasi.

In an embodiment, the number of the bumps on the Bian Huasi is a plurality, and the bumps are arranged in a row at intervals.

In an embodiment, the Bian Hua th part comprises a protruding part and a built-in part which are connected, the protruding part is positioned in the opening, the built-in part is positioned at the inner side of the basin frame, the length of the protruding part is smaller than that of the built-in part, so that the Bian Huasi is in a convex shape, the protruding block is positioned at the top surface of the protruding part, and the top surface of the protruding part is fixedly bonded with the basin frame.

In one embodiment, at least one end of the protrusion is bonded to a side of the opening.

In one embodiment, one end of the protrusion is bonded to one side of the opening, and the other end of the protrusion is bonded to the other side of the opening.

In an embodiment, a first adhesive body is arranged between the top of the protruding portion and the top edge of the opening, a second adhesive body is arranged between the end of the protruding portion and the side edge of the opening, and the first adhesive body is connected with the second adhesive body.

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

In one embodiment, the bump and Bian Huasi 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.

The miniature loudspeaker has the beneficial effects that the miniature loudspeaker is novel in structure, the basin frame is provided with the groove, the Bian Huasi is provided with the convex blocks extending into the groove, and each surface of each convex block is bonded with the basin frame, so that the bonding area of the basin frame and Bian Huasi is increased, the bonding and fixing effects of the basin frame and Bian Huasi are improved, and the structural stability of the miniature loudspeaker is further enhanced. In addition, the existence of the convex blocks increases the whole volume of Bian Huasi, and the magnetic conduction effect of Bian Huasi can be enhanced to a certain extent, so that the magnetic field of the micro-speaker is improved, and the acoustic performance of the micro-speaker is improved.

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 front view of a micro-speaker according to a first embodiment of the present utility model;

Fig. 2 is a schematic structural diagram of an internal structure of a micro-speaker according to a first embodiment of the present utility model;

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. The basin stand is provided with a notch 11, a groove 12 and a groove;

2. Magnetic circuit assembly, 21, yoke, 22, side magnetic structure, 221, side magnetic steel, 222, bian Huasi, 2221, bump, 2222, projection, 2223, inner part, 2224, avoiding groove, 23, center magnetic structure;

31. 32, voice coil;

41. first adhesive joint, 42, second adhesive joint.

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 utility model includes a frame 1, a vibration assembly and a magnetic circuit assembly 2, wherein the vibration assembly includes a diaphragm assembly 31 and a voice coil 32 connected to each other, the voice coil 32 is located inside the frame 1, and the diaphragm assembly 31 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 inner top surface of the notch 11 is provided with a plurality of grooves 12 extending upwards, the magnetic circuit assembly 2 comprises a yoke 21, a central magnetic structure 23 and a side magnetic structure 22, the central magnetic structure 23 is positioned between at least one group of two side magnetic structures 22 which are oppositely arranged, a magnetic gap for the voice coil 32 to move is formed between the central magnetic structure 23 and the side magnetic structure 22, the central magnetic structure 23 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 21, the whole side magnetic structure 22 is in a convex shape, part of the side magnetic structure 22 extends into the notch 11, the side magnetic structure 22 comprises side magnetic steels 221 and Bian Huasi, the Bian Huasi is positioned above the side magnetic steels 221, the side 221 is connected with the side magnetic steels 42222, the top surface of the yoke Bian Huasi is provided with the boss 2221, and the top surface of the boss 2221 is integrally bonded with the boss 2221, and the boss 222 is integrally formed with the top surface of the boss 2221.

In order to facilitate the processing of the basin frame 1 and the assembly of Bian Huasi and the basin frame 1, it is preferable that the groove 12 communicates the inner wall surface and the outer wall surface of the basin frame 1.

In this embodiment, the number of the bumps 2221 on the Bian Huasi is one, and the bumps 2221 are arranged corresponding to the central axis of the Bian Huasi, so that the processing and manufacturing of the Bian Huasi 222 can be facilitated. In other embodiments, the number of the bumps 2221 on the Bian Huasi is plural, and the plural bumps 2221 are arranged at intervals in a row, so that the adhesion area between the Bian Huasi and the basin frame 1 can be increased to a greater extent, and at this time, the notch 11 is correspondingly provided with a plurality of grooves 12.

In detail, the Bian Huasi includes a connecting protrusion 2222 and a built-in portion 2223, the protrusion 2222 and the built-in portion 2223 are integrally formed, the protrusion 2222 is located in the notch 11, the built-in portion 2223 is located at the inner side of the basin frame 1, the length of the protrusion 2222 is smaller than that of the built-in portion 2223, so that the Bian Huasi is convex, that is, the protrusion 2222 is located at the outer side of the long side of the built-in portion 2223 and connected with the long side of the built-in portion 2223, the bump 2221 is located at the top surface of the protrusion 2222, and the top surface of the protrusion 2222 is adhered to the basin frame 1.

To further improve the stability of the connection of Bian Huasi 222,222 to the tub 1, at least one end of the projection 2222 is optionally bonded to the side of the cutout 11. Preferably, one end of the protruding portion 2222 is adhered to one side of the opening 11, and the other end of the protruding portion 2222 is adhered to the other side of the opening 11, that is, two ends of the protruding portion 2222 are adhered to and fixed to two sides of the opening 11 in a one-to-one correspondence.

In one or more embodiments, a first adhesive joint 41 is formed between the top of the protruding portion 2222 and the top edge of the opening 11, a first adhesive glue is formed in the first adhesive joint 41, a second adhesive joint 42 is formed between the end of the protruding portion 2222 and the side edge of the opening 11, a second adhesive glue is formed in the second adhesive joint 42, and the first adhesive glue is connected with the second adhesive glue, that is, the first adhesive glue and two second adhesive glues connected with the first adhesive glue form a 匚 -shaped structure rotated 90 ° clockwise.

In some embodiments, in order to avoid the vibration of the diaphragm assembly 31 from colliding Bian Huasi to generate noise during vibration, the inner region of the top surface of the Bian Huasi 222 is provided with a relief groove 2224.

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 loudspeaker, characterized in that: it includes...

A basin stand, wherein the basin stand has a notch that connects to the bottom surface of the basin stand, and the inner top surface of the notch has several upwardly extending grooves.

A magnetic circuit assembly includes a yoke and a side magnetic structure. The side magnetic structure is generally convex in shape, with a portion of the side magnetic structure extending into the notch. The side magnetic structure includes a side magnet and a side washer. The side magnet connects the side washer and the yoke. The top surface of the side washer has a protrusion extending into the groove. The top and side surfaces of the protrusion are respectively bonded to the basin frame. The top surface of the side washer is bonded to the inner top surface of the notch.

2. The miniature loudspeaker according to claim 1, characterized in that: the number of protrusions on the edge washer is one, and the protrusion is arranged corresponding to the central axis of the edge washer.

3. The miniature loudspeaker according to claim 1, characterized in that: the number of protrusions on the edge is multiple, and the multiple protrusions are arranged in a row at intervals.

4. The miniature loudspeaker according to claim 1, characterized in that: the side washer includes a protruding part and a concealed part connected together, the protruding part is located in the notch, the concealed part is located on the inner side of the frame, the length of the protruding part is less than the length of the concealed part, so that the side washer is convex in shape, the protrusion is located on the top surface of the protruding part, and the top surface of the protruding part is bonded and fixed to the frame.

5. The miniature loudspeaker according to claim 4, wherein at least one end of the protrusion is bonded to the side of the notch.

6. The miniature loudspeaker according to claim 5, characterized in that: one end of the protrusion is bonded to one side of the notch, and the other end of the protrusion is bonded to the other side of the notch.

7. The miniature loudspeaker according to claim 6, characterized in that: a first adhesive is provided between the top of the protrusion and the top edge of the notch, and a second adhesive is provided between the end of the protrusion and the side edge of the notch, wherein the first adhesive is connected to the second adhesive.

8. The miniature loudspeaker according to claim 4, characterized in that: the protrusion and the concealed portion are integrally formed into a single structure.

9. The miniature loudspeaker according to claim 1, characterized in that: the protrusion and the edge washer are integrally formed into a single structure.

10. The miniature loudspeaker according to claim 1, characterized in that: the inner side region of the top surface of the edge washer is provided with a clearance groove.