CN218336409U

CN218336409U - Sound production device and electronic equipment

Info

Publication number: CN218336409U
Application number: CN202222013692.6U
Authority: CN
Inventors: 李聆声; 王萍; 刘光磊; 邵明辉; 吴德跃; 朱熹; 王文海
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2023-01-17
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses locate electro-acoustic conversion equipment technical field, concretely relates to sound generating mechanism and electronic equipment. The utility model discloses a sound production device, which comprises a shell and a loudspeaker single body, wherein a containing cavity is arranged inside the shell, and at least part of the loudspeaker single body is arranged in the containing cavity; wherein, the casing includes bounding wall portion and end plate portion, and the free circumferential direction of speaker is located to bounding wall portion ring, and end plate portion is just to setting up with the speaker monomer, and end plate portion links to each other and encloses into through the one end of first collaring portion with the bounding wall portion and holds the chamber, and the speaker monomer links to each other through the other end of second collaring portion with the bounding wall portion. According to the utility model discloses a sound generating mechanism can reduce the free vibration influence of speaker through the second ring portion of rolling over, and first ring portion of rolling over can conduct the stress state that holds the chamber simultaneously, cushions partly vibration effect to the influence that causes the casing when reducing the speaker monomer vibration improves sound generating mechanism's vibration isolation effect, guarantees sound generating mechanism's sound quality.

Description

Sound production device and electronic equipment

Technical Field

The utility model discloses locate electro-acoustic transducer technical field, concretely relates to sound generating mechanism and have this sound generating mechanism's electronic equipment.

Background

With the rapid development of electronic devices, higher requirements are put on the performance of speakers, and higher sensitivity, i.e., stronger vibration, is required. However, in contradiction, the influence of the speaker on the external vibration should be as small as possible, so that the vibration isolation effect of the speaker module needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at least solving the problem that needs promote the vibration isolation effect of speaker module. This object is achieved by:

the utility model discloses a first aspect provides a sound generating mechanism, sound generating mechanism includes:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein an accommodating cavity is formed in the shell;

the loudspeaker single body is at least partially arranged in the accommodating cavity;

the casing includes bounding wall portion and end plate portion, bounding wall portion encircles and locates the free circumferential direction of speaker, the end plate portion with the speaker monomer is just to setting up, end plate portion through first collaring portion with the one end of bounding wall portion links to each other and encloses hold the chamber, the speaker monomer through second collaring portion with the other end of bounding wall portion links to each other.

According to the utility model discloses a sound generating mechanism, connect speaker monomer and bounding wall portion through second collared portion, thereby reduce the vibration influence of speaker monomer to the bounding wall portion through second collared portion, simultaneously through first collared portion link portion and bounding wall portion, the space in chamber is held in the compression when the speaker vibration, first collared portion can conduct the stress state that holds the chamber, cushion some vibration effect, thereby reduce the influence that causes the casing when speaker monomer vibrates, improve sound generating mechanism's vibration isolation effect, guarantee sound generating mechanism's sound production quality.

In addition, according to the utility model discloses a sound generating mechanism still can have following additional technical characterstic:

in some embodiments of the present invention, the speaker unit includes a speaker unit, and a cover plate.

In some embodiments of the present invention, the free orthographic projection edge line of the speaker coincides with the orthographic projection edge line of the end plate portion along the axial direction of the speaker.

The utility model discloses an in some embodiments, follow the free axial direction of speaker, first hem portion with the second hem portion is just to setting up, and/or, the orthographic projection of first hem portion with the orthographic projection of second hem portion coincides mutually.

In some embodiments of the present invention, the speaker unit includes a third flange portion, the damping of the first flange portion is greater than or equal to the damping of the second flange portion and/or the damping of the first flange portion is equal to the damping of the second flange portion.

The utility model discloses an in some embodiments, the speaker monomer includes supporting component, magnetic circuit component, voice coil loudspeaker voice coil and ball top, the inside of supporting component is equipped with the installation cavity, magnetic circuit component locates the installation cavity, the voice coil loudspeaker voice coil with the ball top links to each other, the ball top with the supporting component links to each other, the voice coil loudspeaker voice coil is in can drive under magnetic circuit component's the effect the ball top with the speaker monomer is followed respectively the axial direction reciprocating motion of voice coil loudspeaker voice coil, wherein, the free resonant frequency of speaker is less than the resonant frequency of ball top.

In some embodiments of the present invention, the resonance frequency of the speaker unit is between 0% and 40% of the resonance frequency of the dome.

The utility model discloses an in some embodiments, it leaks the sound hole to run through being equipped with on the supporting component, it communicates to leak the sound hole the installation cavity with hold the chamber.

The utility model discloses an in some embodiments, the supporting component include the basin frame and with the yoke that the basin frame links to each other, magnetic circuit component locates on the yoke, the basin frame is kept away from the one end of yoke is for having central open-ended annular structure, the ball top passes through the free third of speaker book the ring with the inward flange of basin frame links to each other, the apron passes through second flange portion with the outside edge of basin frame links to each other, follows the free axial direction of speaker, annular structure's orthographic projection area size is less than the orthographic projection area size of ball top.

In some embodiments of the present invention, the orthographic area size of the ring-shaped structure is between 0% and 30% of the orthographic area size of the dome.

In some embodiments of the present invention, the speaker unit is connected to the end plate portion; or, the loudspeaker single body and the end plate part are arranged at intervals.

In some embodiments of the present invention, the speaker unit is connected to the end plate portion by a connecting member; or the loudspeaker single body is attached to the end plate part.

In some embodiments of the present invention, the end plate portion is provided with an opening, and the speaker unit is disposed in the opening and is attached to the inner wall surface of the opening.

The utility model discloses an on the other hand has still provided an electronic equipment, electronic equipment has above-mentioned arbitrary sound generating mechanism, sound generating mechanism passes through the apron portion with the casing links to each other.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated with like reference numerals throughout the drawings. Wherein:

fig. 1 is a schematic internal structure diagram of a first embodiment of a sound generating device according to the present application;

fig. 2 is a schematic internal structure diagram of a second embodiment of the sound generating device according to the present application;

fig. 3 is a schematic internal structure diagram of a third embodiment of the sound generating device according to the present application;

fig. 4 is a schematic internal configuration diagram of a fourth embodiment of the sound generating apparatus according to the present application.

In the drawings, the reference numerals denote the following:

1: a sound producing device;

10: a housing, 11: surrounding plate portion, 12: end plate portion, 13: first hinge portion, 14: accommodating chamber, 15: a second flange part;

20: speaker monomer, 21: support assembly, 211: basin stand, 212: yoke, 22: magnetic circuit assembly, 23: voice coil, 24: ball top, 25: third collar portion, 26: a sound venting hole;

30: a connecting member.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative term is intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "at 8230; \8230; below" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Implementation mode one

As shown in fig. 1, the sound generating device 1 of the present embodiment includes a housing 10 and a speaker unit 20, wherein the housing 10 is provided with an accommodating cavity 14 inside, and at least a part of the speaker unit 20 is provided in the accommodating cavity 14; wherein, casing 10 includes hoarding portion 11 and end plate portion 12, and the circumference direction of speaker monomer 20 is located to hoarding portion 11 ring, and end plate portion 12 just sets up speaker monomer 20, and end plate portion 12 links to each other and encloses into holding chamber 14 through the one end of first ring portion 13 with hoarding portion 11, and speaker monomer 20 links to each other with the other end of hoarding portion 11 through second ring portion 15. The speaker unit 20 is spaced apart from the end plate 12, and there is no connection between the speaker unit 20 and the end plate 12.

Specifically, the inner edges of the two ends of the shroud portion 11 in the axial direction in fig. 1 are respectively extended toward the speaker unit 20, so as to be connected to the first flange portion 13 and the second flange portion 15. The other end that sets up with end plate portion 12 relatively on casing 10 is equipped with the opening, speaker monomer 20 locates this opening part and links to each other with casing 10 through second collar portion 15, thereby when speaker monomer 20 vibrates, can reduce the vibration influence of speaker monomer 20 through second collar portion 15, link end plate portion 12 and bounding wall portion 11 through first collar portion 13 simultaneously, the space that holds chamber 14 is compressed when speaker vibration 20, first collar portion 13 can conduct the stress state who holds chamber 14, cushion partly vibration effect, thereby reduce the influence that causes casing 10 when speaker monomer 20 vibrates, improve sound generating mechanism 1's vibration isolation effect, guarantee sound quality of sound generating mechanism 1.

As shown in fig. 1, the speaker unit 20 includes a supporting component 21, a magnetic circuit component 22, a voice coil 23, and a dome 24, a mounting cavity is disposed inside the supporting component 21, the magnetic circuit component 22 is disposed in the mounting cavity, the voice coil 23 is connected to the dome 24, the dome 24 is connected to the supporting component 21, and the voice coil 23 can drive the dome 24 to reciprocate along an axial direction of the voice coil 23 under the action of the magnetic circuit component 22. The ball top 24 can drive the speaker unit 1 to vibrate together when vibrating, so that the ball top 24 and the speaker unit 20 respectively reciprocate along the axial direction of the voice coil 23 under the action of the voice coil 23.

The support component 21 includes a frame 211 and a magnetic yoke 212 connected to the frame 211, the magnetic circuit component 22 is disposed on the magnetic yoke 212, one end of the frame 211, which is far away from the magnetic yoke 212, is an annular structure with a central opening, the dome 24 is connected to the inner edge of the frame 211 through a third flange portion 25 of the speaker unit 20, and the shroud 11 is connected to the outer edge of the frame 211 through a second flange portion 15. The magnetic circuit assembly 22 may be a conventional magnetic circuit assembly in the art, and may include a central magnetic circuit assembly and at least one side magnetic circuit assembly, and a magnetic gap is provided between the central magnetic circuit assembly and the side magnetic circuit assembly, and one end of the voice coil 23 is inserted into the magnetic gap; alternatively, the magnetic circuit assembly 22 may comprise only a central magnetic assembly with a magnetic gap formed between the central magnetic assembly and the side walls of the U-shaped yoke. When the voice coil 23 is energized, the voice coil 23 can reciprocate in the magnetic gap along its axial direction, so as to drive the ball top 24 and the speaker unit 20 to reciprocate along the axial direction of the voice coil 23, respectively.

In the present embodiment, the resonance frequency of the speaker unit 20 is smaller than the resonance frequency of the dome 24. Specifically, the resonance frequency of the speaker unit 20 is between 0% and 40% of the resonance frequency of the dome 24.

In order to ensure that the resonance frequency of the speaker unit 20 is lower than the resonance frequency of the dome 24, the damping of the materials of the first flange part 13 and the second flange part 15 in the present embodiment is equal to the damping of the material of the third flange part 25, or is greater than the damping of the material of the third flange part 25. Specifically, the materials used for the first collar portion 13 and the second collar portion 15 may be one or more of rubber, silicone rubber, fluorosilicone rubber, PEEK (polyether ether ketone), and TPU (thermoplastic polyurethane), respectively.

Further, the shapes of the first flange portion 13 and the second flange portion 15 are not limited, and may be respectively disposed to protrude from the accommodation cavities 14, as shown in fig. 1, or respectively disposed to be recessed in the accommodation cavities 14, or one of them may be disposed to protrude from the accommodation cavity 14, and the other one may be disposed to be recessed in the accommodation cavity 14.

As shown in fig. 1, the size of the front projection area of the speaker unit 20 is equal to the size of the front projection area of the end plate portion 12 in the axial direction of the speaker unit 20.

Specifically, the orthographic projection area of the speaker unit 20 is the maximum orthographic projection area of the frame 211 in the axial direction of the speaker unit 20. Through the orthographic projection area size with speaker monomer 20 and the orthographic projection area size of end plate portion 12 equal setting, can conduct the extrusion force that holds chamber 14 production when speaker monomer 20 vibrates effectively to cushion through first collar portion 13, thereby reduce speaker monomer 20's vibration influence.

As shown in fig. 1, the orthographic projection edge line of the speaker unit 20 coincides with the orthographic projection edge line of the end plate portion 12 in the axial direction of the speaker unit 20, thereby further ensuring reduction of the influence of vibration of the speaker unit 20.

As shown in fig. 1 again, in some embodiments of the present invention, along the axial direction of the speaker unit 20, the orthographic projection area size of the first flange part 13 is equal to the orthographic projection area size of the second flange part 15, so as to balance the stress state of the accommodating cavity 14 and reduce the vibration influence of the speaker unit 20.

As shown in fig. 1 again, in some embodiments of the present invention, along the axial direction of the speaker unit 20, the orthographic projection edge line of the first flange portion 13 coincides with the orthographic projection edge line of the second flange portion 15, so as to further balance the stress state of the accommodating cavity 14 and reduce the vibration effect of the speaker unit 20.

As shown in fig. 1, along the axial direction of the speaker unit 20, the size of the orthographic projection area of the ring structure at one end of the frame 211 is smaller than the size of the orthographic projection area of the dome 24, so as to reduce the area loss of the dome 24, maximize the area of the dome 24, and improve the sensitivity of the speaker unit 20. Specifically, the size of the orthographic projection area of the annular structure at one end of the basin stand 211 is between 0% and 30% of the size of the orthographic projection area of the ball top 24.

As shown in fig. 1, a sound vent 26 is formed through the support member 21, and the sound vent 26 is used for communicating the installation cavity with the accommodating cavity 14. Specifically, the sound leakage hole 26 may be provided at a connection of the frame 211 and the yoke 212. Through setting up sound leakage hole 26, the sound of the installation cavity of speaker monomer 20 can transmit to the chamber 14 that holds of casing 10 through sound leakage hole 26 to reduce the resonant frequency of speaker monomer 20, promote low frequency sensitivity.

Further, the speaker unit 20 of the present embodiment may further include a mass block, so as to increase the overall weight of the speaker unit 20 and reduce the resonant frequency of the speaker unit. Or by increasing the material density of the support member 21 to increase the overall mass of the speaker unit 20, thereby lowering the resonance frequency of the speaker unit 20.

Second embodiment

As shown in fig. 2, the sound generating device 1 of the present embodiment may be configured in accordance with the sound generating device 1 of the first embodiment except that the speaker unit 20 is connected to the end plate portion 12 by the connector 30. The single loudspeaker body 20 is connected with the end plate part 12 through the connecting piece 30, and the end plate part 12 vibrates together with the single loudspeaker body 20 when the single loudspeaker body 20 vibrates, so that the overall vibration mass of the single loudspeaker body 20 is increased, the vibration frequency of the single loudspeaker body 20 during vibration is reduced, and the adverse effect of the single loudspeaker body 20 during vibration is reduced. Specifically, the rigidity of the connecting member 30 should be the same as or greater than that of the frame 211, and the area of the connecting member 30 should be smaller than the orthographic area of the yoke 212, or equal to that of the yoke 212. The center of the connecting member 30 coincides with or is close to the center of the yoke 212. Specifically, the connecting member 30 may be made of steel plate or solder and connected by welding.

Third embodiment

As shown in fig. 3, the sound generating device 1 of the present embodiment may be configured in accordance with the sound generating device 1 of the first embodiment, except that the speaker unit 20 is attached to the end plate portion 12. Specifically, can adopt the mode of gluing or joint to link to each other to increased speaker monomer 20's whole vibration quality, and then reduced the vibration frequency when speaker monomer 20 vibrates, reduced the harmful effects when low speaker monomer vibrates 20.

Embodiment IV

As shown in fig. 4, the sound generating device of the present embodiment may be configured in accordance with the sound generating device 1 of the first embodiment, except that the speaker unit 20 is connected to the end plate portion 12. Specifically, the end plate portion 12 of the present embodiment has an opening formed therethrough, and a part of the speaker unit 20 is inserted into the opening and is attached to an inner wall surface of the opening, thereby sealing the accommodation chamber 14. By inserting part of the speaker units 20 into the openings and attaching the speaker units to the inner wall surfaces of the openings, the overall vibration mass of the speaker units 20 can be increased, the vibration frequency of the speaker units 20 during vibration can be reduced, and the adverse effect of the speaker units 20 during vibration can be reduced.

The utility model discloses an on the other hand has still provided an electronic equipment, this electronic equipment has the sound generating mechanism 1 of any one of the above-mentioned embodiment, sound generating mechanism 1 links to each other with the casing through surrounding plate portion 11, thereby can not cause the interference to the motion of first collar portion 13 and second collar portion 15, guarantee to conducting the stress state who holds chamber 14, cushion partly vibration effect, thereby reduce the influence that causes casing 10 when speaker monomer 20 vibrates, improve the vibration isolation effect of sound generating mechanism 1, guarantee sound generating mechanism 1's sound quality.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A sound generating device, comprising:

2. The sound generating apparatus according to claim 1, wherein an orthographic area dimension of said speaker unit is equal to an orthographic area dimension of said end plate portion in an axial direction of said speaker unit.

3. The sound production device according to claim 1, wherein the first folded ring portion and the second folded ring portion are disposed opposite to each other along an axial direction of the speaker unit, and/or,

the orthographic projection of the first flange part is coincident with the orthographic projection of the second flange part.

4. The sound generating apparatus according to any one of claims 1-3, wherein the speaker unit comprises a third folded ring portion, the damping of the first folded ring portion and the damping of the second folded ring portion are greater than or equal to the damping of the third folded ring portion, and/or,

the damping of the first flange part is equal to the damping of the second flange part.

5. The sound production device according to any one of claims 1 to 3, wherein the speaker unit includes a support component, a magnetic circuit component, a voice coil, and a dome, a mounting cavity is provided inside the support component, the magnetic circuit component is provided in the mounting cavity, the voice coil is connected to the dome, the dome is connected to the support component, the voice coil can drive the dome and the speaker unit to reciprocate along an axial direction of the voice coil under the action of the magnetic circuit component, and a resonant frequency of the speaker unit is smaller than a resonant frequency of the dome.

6. The apparatus according to claim 5, wherein the resonance frequency of said speaker unit is between 0% and 40% of the resonance frequency of said dome.

7. The sound generating apparatus as claimed in claim 5, wherein a sound outlet is provided through the supporting member, and the sound outlet communicates with the mounting cavity and the accommodating cavity.

8. The sounding device according to claim 5, wherein the supporting assembly includes a frame and a magnetic yoke connected to the frame, the magnetic circuit assembly is disposed on the magnetic yoke, one end of the frame away from the magnetic yoke is an annular structure with a central opening, the dome is connected to the inner edge of the frame through a third flange portion of the speaker, the enclosure portion is connected to the outer edge of the frame through the second flange portion, and along the axial direction of the speaker, the orthographic projection area size of the annular structure is smaller than that of the dome.

9. The apparatus according to claim 8, wherein said annular structure has an orthographic area dimension between 0% and 30% of an orthographic area dimension of said dome.

10. The sound generating apparatus according to any one of claims 1 to 3, wherein the speaker unit is connected to the end plate portion; or, the loudspeaker single body and the end plate part are arranged at intervals.

11. The sound generating apparatus according to claim 10, wherein said speaker unit is connected to said end plate portion by a connecting member; or the loudspeaker single body is attached to the end plate part.

12. The sound generating apparatus according to claim 11, wherein an opening is formed through the end plate portion, and a part of the speaker unit is disposed in the opening and is attached to an inner wall surface of the opening.

13. An electronic device having the sound emitting device according to any one of claims 1 to 12, further comprising a housing, wherein the sound emitting device is connected to the housing through the surrounding plate portion.