CN224083687U - Miniature speaker - Google Patents

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 outer wall surface of the basin frame is provided with a blind groove which is communicated with the notch, the magnetic circuit component comprises Bian Huasi and Bian Huasi which are vertically connected, one end of the protruding part far away from the inner part extends into the notch and is adhered and fixed with the basin frame, at least one side of one end of the protruding part far away from the inner part is provided with an extending part which is accommodated in the blind groove, and the extending part is adhered with the inner surface of the blind groove. The miniature loudspeaker is novel in structure, the outer wall surface of the basin frame is provided with a blind groove communicated with the opening, the Bian Huasi is provided with an extension part accommodated in the blind groove and the extension part 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.

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 outer wall surface of the basin stand is provided with a blind groove which is communicated with the notch;

The magnetic circuit assembly comprises Bian Huasi, the Bian Huasi comprises a protruding portion and an inner portion which are vertically connected, one end, away from the inner portion, of the protruding portion extends into the opening and is fixedly bonded with the basin frame, at least one side, away from one end of the inner portion, of the protruding portion is provided with an extending portion accommodated in the blind groove, and the extending portion is bonded with the inner surface of the blind groove.

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

In an embodiment, the inner top surface of the opening is provided with a plurality of grooves extending upwards, the top surface of Bian Huasi is provided with a protruding block extending into the grooves, the top surface and the side surface of the protruding block are respectively bonded with the basin stand, and the top surface of 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.

The miniature loudspeaker has the beneficial effects that the miniature loudspeaker is novel in structure, the outer wall surface of the basin frame is provided with the blind groove communicated with the opening, the Bian Huasi is provided with the extension part accommodated in the blind groove, and the extension part 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 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 a micro-speaker according to a first embodiment of the present utility model;

Fig. 2 is a schematic structural view of a basin stand in a micro speaker according to a first embodiment of the present utility model;

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

Reference numerals illustrate:

1. Basin stand, 11, notch, 12, blind groove, 13, groove;

2. a diaphragm assembly;

3. Magnetic circuit assembly 31, yoke iron 32, side magnetic structure 321, side magnetic steel 322, bian Huasi, 3221, protrusion portion 3222, inner-storage portion 3223, extension portion 3224, avoiding groove 3225 and bump.

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 2 and a voice coil connected to each other, the voice coil is located inside the frame 1, and the diaphragm assembly 2 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 outer wall surface of the basin frame 1 is provided with a blind groove 12 communicated with the notch 11, the magnetic circuit assembly 3 comprises a yoke 31, a central magnetic structure and a side magnetic structure 32, the central magnetic structure is positioned between at least one group of two side magnetic structures 32 which are oppositely arranged, a magnetic gap for the voice coil to move is formed between the central magnetic structure and the side magnetic structure 32, the central magnetic structure 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 32 extends into the notch 11, the side magnetic structure 32 comprises side magnetic steels 321 and Bian Huasi, the Bian Huasi is positioned above the side magnetic steels 321, the side magnetic steels 321 are connected with the yoke 31, the central magnetic structure comprises a vertical protrusion part and a protrusion part 3223, the protrusion part is positioned at least far away from the inner side of the inner protrusion 3221 and the inner protrusion 3221, the inner protrusion 3221 is positioned at one end of the inner protrusion 3221 and the inner protrusion 3221 is far away from the inner side 3222, the inner protrusion 3221 is formed, the inner protrusion 3221 is far from the inner side 3222, and the inner protrusion 3221 is positioned at one end of the inner end 3222, and the inner end of the protrusion 3221 is far from the protrusion 3221, and the inner end of the protrusion is far from the protrusion end 3221, the extension portion 3223 and the protrusion portion 3221 are integrally formed as a one-piece structure, and the extension portion 3223 is adhered to the inner surface of the blind slot 12.

At least the inner wall surface of the extension 3223 is adhered to the basin frame 1, and as a preferred embodiment, the side surface, the top surface and the inner wall surface of the extension 3223 are adhered to the basin frame 1, respectively.

In some embodiments, the protrusion 3221 may have the extension 3223 on only one side, and in the present embodiment, the extension 3223 is provided on both sides of the protrusion 3221, respectively. Preferably, bian Huasi is a planar symmetrical structure.

In order to avoid the vibration of the diaphragm assembly 2 from colliding Bian Huasi with the diaphragm assembly 322 to generate noise, an inner region of the top surface of the Bian Huasi is optionally provided with a relief groove 3224.

To further improve the stability of the connection Bian Huasi to the basin stand 1, at least one side of the projection 3221 is optionally glued to the side of the cutout 11. Preferably, one side surface of the protrusion 3221 is adhered to one side edge of the opening 11, and the other side surface of the protrusion 3221 is adhered to the other side edge of the opening 11, that is, two side surfaces of the protrusion 3221 are in one-to-one correspondence to and adhered to and fixed with two side edges of the opening 11, and correspondingly, two sides of the opening 11 are respectively provided with the blind groove 12.

The inner top surface of the opening 11 is provided with a plurality of grooves 13 extending upwards, the top surface of the Bian Huasi is provided with a protruding block 3225 extending into the grooves 13, the top surface and the side surface of the protruding block 3225 are respectively adhered to the basin frame 1, and the top surface of the Bian Huasi 322 is adhered to the inner top surface of the opening 11. Preferably, the groove 13 communicates with the inner wall surface and the outer wall surface of the basin stand 1.

In this embodiment, the number of the protrusions 3225 on the Bian Huasi is one, and the protrusions 3225 are disposed corresponding to the central axis of the Bian Huasi, so that the processing and manufacturing of the Bian Huasi 322,322 can be facilitated. In other embodiments, the number of the protrusions 3225 on the Bian Huasi is plural, and the protrusions 3225 with the number of plural 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 the grooves 13.

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. The micro-speaker is characterized by comprising

The basin stand is provided with a notch which is communicated with the bottom surface of the basin stand, and the outer wall surface of the basin stand is provided with a blind groove which is communicated with the notch;

The magnetic circuit assembly comprises Bian Huasi, the Bian Huasi comprises a protruding portion and an inner portion which are vertically connected, one end, away from the inner portion, of the protruding portion extends into the opening and is fixedly bonded with the basin frame, at least one side, away from one end of the inner portion, of the protruding portion is provided with an extending portion accommodated in the blind groove, and the extending portion is bonded with the inner surface of the blind groove.

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, wherein at least one side of the protrusion is bonded to a side of the opening.

8. The micro-speaker of claim 1, wherein the inner top surface of the opening has a plurality of grooves extending upward, the top surface of Bian Huasi has a protrusion protruding into the grooves, the top surface and the side surface of the protrusion are bonded to the basin stand, respectively, and the top surface of Bian Huasi is bonded to the inner top surface of the opening.

9. The micro-speaker of claim 8, wherein the number of bumps on Bian Huasi is one, the bumps being disposed corresponding to a center axis of the Bian Huasi.

10. The micro-speaker of claim 8, wherein the number of the bumps on the Bian Huasi is plural, and the plural bumps are arranged in a row at intervals.