CN116489579A - Sound producing device and electronic equipment - Google Patents

Abstract

The invention discloses a sound generating device and electronic equipment, wherein the sound generating device comprises a bracket and a first vibration component, the first vibration component is arranged on the bracket, the first vibration component is an annular structural member, the first vibration component comprises a first voice coil, a first dome, a first ring folding part and a second ring folding part, the first ring folding part is connected with the first dome and surrounds the first dome, the first dome is connected with the second ring folding part and surrounds the second ring folding part, one side of the first ring folding part, which is far away from the first dome, is connected with the bracket, and one side of the second ring folding part, which is far away from the first dome, is connected with the bracket; the first voice coil is connected with the first dome, and the distance between the first voice coil and the first ring folding portion is equal to the distance between the first voice coil and the second ring folding portion, and the first voice coil is used for driving the first dome to vibrate in an electrified state so that the first dome drives the first ring folding portion and the second ring folding portion to vibrate synchronously.

Description

Sound producing device and electronic equipment

Technical Field

The present invention relates to the field of electronic devices, and in particular, to a sound generating apparatus and an electronic device.

Background

The conversation function is a basic function of some electronic devices, and is realized by sound generating devices of the electronic devices. In the electronic equipment that the related art relates to, sound generating mechanism includes annular vibration subassembly, and the outside edge of annular vibration subassembly's top of sphere passes through shell fragment and leg joint, and the inboard edge of top of sphere is connected with the voice coil loudspeaker voice coil, and the voice coil loudspeaker voice coil can drive the top of sphere vibration after the circular telegram to realize sound generating mechanism's sound production. Because the outside edge of the ball top is connected with the bracket through the elastic sheet, the inside edge of the ball top is connected with the voice coil, when the voice coil drives the ball top to move, the vibration amplitude of each part of the ball top is different, thereby influencing the acoustic performance of the sounding device during sounding.

Disclosure of Invention

The invention discloses a sound generating device and electronic equipment, which are used for solving the problem of poor acoustic performance of the sound generating device in the related technology.

In order to solve the technical problems, the invention is realized as follows:

in a first aspect, the application discloses a sound generating apparatus comprising a support and a first vibration assembly, the first vibration assembly is disposed on the support, the first vibration assembly is an annular structural member, wherein,

the first vibration component comprises a first voice coil, a first dome, a first ring-folding part and a second ring-folding part, wherein the first ring-folding part is connected with the first dome and surrounds the first dome, the first dome is connected with the second ring-folding part and surrounds the second ring-folding part, one side, away from the first dome, of the first ring-folding part is connected with the bracket, and one side, away from the first dome, of the second ring-folding part is connected with the bracket;

the first voice coil is connected with the first dome, the distance between the first voice coil and the first ring folding portion is equal to the distance between the first voice coil and the second ring folding portion, and the first voice coil is used for driving the first dome to vibrate in an electrified state so that the first dome drives the first ring folding portion and the second ring folding portion to vibrate synchronously.

In a second aspect, the present application further discloses an electronic device, including the sound generating apparatus of the first aspect.

The technical scheme adopted by the invention can achieve the following technical effects:

the sound generating device disclosed by the embodiment of the application sets up first vibration subassembly to set up first vibration subassembly to including first voice coil loudspeaker voice coil, first ball top, first ring portion and the structure of second ring portion, make first ring portion and first ball top be connected, and encircle first ball top, first ball top and second ring portion are connected, and encircle second ring portion, one side and leg joint that the first ball top of deviating from of first ring portion, one side and leg joint that the second ring portion deviates from first ball top, thereby make first voice coil loudspeaker voice coil be located the centre of first ring portion and second ring portion, and then make when first voice coil loudspeaker voice coil drives first ball top vibration, the vibration amplitude of each position of first ball top is the same, make first ball top drive first ring portion and the amplitude of second ring portion vibration tend to agree, thereby make the vibration energy of first vibration subassembly be in balanced state, thereby can optimize sound generating device.

Drawings

FIG. 1 is a cross-sectional view of a first sound emitting device according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of a sound emitting device according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a first sound generating apparatus according to an embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a second sound emitting device according to an embodiment of the present invention;

FIG. 5 is a partial schematic view of a device housing according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of a second sound emitting device according to an embodiment of the present invention;

FIG. 7 is an exploded view of an electronic device according to an embodiment of the present invention;

FIG. 8 is an enlarged schematic view of a portion of an electronic device according to an embodiment of the present invention;

FIG. 9 is a partially exploded schematic illustration of an electronic device according to an embodiment of the present invention;

fig. 10 is a cross-sectional view of an electronic device according to an embodiment of the present invention at a first viewing angle;

fig. 11 is a cross-sectional view of an electronic device according to an embodiment of the present invention at a second viewing angle.

Reference numerals illustrate:

a-sound producing device,

100-bracket, 110-first plastic frame, 120-second plastic frame,

200-first vibration component, 210-first voice coil, 220-first dome, 230-first collar portion, 240-second collar portion,

300-second vibration component, 310-second voice coil, 320-second dome, 330-third ring-folded portion,

400-first magnetic component, 410-first magnetic member, 420-first magnetic conductive member, 401-first annular magnetic gap, 430-second magnetic conductive member,

500-second magnetic component, 510-second magnetic member, 520-third magnetic conductive member, 501-second annular magnetic gap,

600-device housing, 601-first sound outlet, 602-second sound outlet,

700-frame, 701-first sound guide channel, 702-second sound guide channel,

800-screen,

900-rear cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme disclosed by each embodiment of the invention is described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 11, an embodiment of the present invention discloses a sound generating device a, which includes a bracket 100 and a first vibration assembly 200.

The bracket 100 may provide a basis for mounting other parts of the sound emitting device a. The first vibration assembly 200 is disposed on the bracket 100, and the first vibration assembly 200 is an annular structural member.

The first vibration assembly 200 includes a first voice coil 210, a first dome 220, a first collar portion 230, and a second collar portion 240.

The first ring portion 230 is connected to the first dome 220 and surrounds the first dome 220, and the first dome 220 is connected to the second ring portion 240 and surrounds the second ring portion 240. The side of the first ring portion 230 facing away from the first dome 220 is connected to the bracket 100, and the side of the second ring portion 240 facing away from the first dome 220 is connected to the bracket 100. Specifically, the bracket 100 may include a first plastic frame 110 and a second plastic frame 120, where a side of the first ring portion 230 facing away from the first dome 220 may be bonded to the first plastic frame 110, and a side of the second ring portion 240 facing away from the first dome 220 may be bonded to the second plastic frame 120.

The first voice coil 210 is connected with the first dome 220, and the distance between the first voice coil 210 and the first collar portion 230 is equal to the distance between the first voice coil 210 and the second collar portion 240, and the first voice coil 210 is configured to drive the first dome 220 to vibrate in an energized state, so that the first dome 220 drives the first collar portion 230 and the second collar portion 240 to vibrate synchronously, and the sound generating device a generates sound under the vibration action of the first dome 220, the first collar portion 230 and the second collar portion 240.

According to the sound generating device A disclosed in the embodiment of the invention, the first vibration assembly 200 is arranged, and the first vibration assembly 200 is arranged to comprise the first voice coil 210, the first dome 220, the first collar portion 230 and the second collar portion 240, so that the first collar portion 230 is connected with the first dome 220, and surrounds the first dome 220, the first dome 220 is connected with the second collar portion 240, and surrounds the second collar portion 240, one side, deviating from the first dome 220, of the first collar portion 230 is connected with the support 100, and one side, deviating from the first dome 220, of the second collar portion 240 is connected with the support 100, so that the first voice coil 210 is positioned between the first collar portion 230 and the second collar portion 240, and the vibration amplitude of each part of the first dome 220 is the same when the first voice coil 210 drives the first dome 220 to vibrate, so that the vibration amplitude of the first dome 220 drives the first collar portion 230 and the second collar portion 240 tends to be the same, and the vibration amplitude of the first collar portion 200 is in a balanced state, and the sound generating device A can be optimized.

In the related art, the outer side edge of the top is connected with the bracket through the elastic sheet, the inner side edge of the top is connected with the voice coil, and when the voice coil drives the inner side edge of the top to vibrate, the inner side edge of the top rotates around the outer side edge of the top, so that the inner side edge of the top has larger amplitude, and the part of the top, which is close to the outer side edge, has smaller amplitude. In this embodiment of the present application, the first voice coil 210 in the present application is disposed between the first collar portion 230 and the second collar portion 240, and when the first voice coil 210 drives the first dome 220 to vibrate, the vibration amplitudes of the inner side edge and the outer side edge of the first dome 220 tend to be the same, so that in the case that the first voice coil 210 in the present application and the voice coil in the related art have the same vibration amplitude, both the inner side edge and the outer side edge of the first dome 220 in the present application have larger amplitudes, while the inner side edge of the dome in the related art only has larger amplitudes, and the area near the outer side edge of the dome has smaller amplitudes, so that the overall amplitude of the first dome 220 in the present application is relatively larger when vibrating, so as to optimize the sounding of the sounding device a.

To further enhance the sound emitting performance of the sound emitting device a, the sound emitting device a may optionally further include a second vibration assembly 300, the second vibration assembly 300 may be disposed on the bracket 100, and the first vibration assembly 200 may surround the second vibration assembly 300.

The sound generating device a disclosed in the embodiment of the present application is configured to generate sound by setting the second vibration assembly 300, so that the sound generating device a can generate sound by the first vibration assembly 200 and the second vibration assembly 300, and the sound generating device a can have different sound generating modes and sound generating effects under the interaction of the first vibration assembly 200 and the second vibration assembly 300 due to the addition of the second vibration assembly 300, so that the sound generating performance of the sound generating device a can be further optimized.

In a specific embodiment, the second vibration assembly 300 may include a second voice coil 310, a second dome 320, and a third gimbal portion 330. One end of the third hinge 330 may be connected to the bracket 100, the other end of the third hinge 330 may be connected to the second dome 320, and the third hinge 330 surrounds the second dome 320. The second voice coil 310 is connected to the second dome 320, and is used for driving the second dome 320 to drive the third gimbal portion 330 to vibrate. Specifically, the side of the third hinge portion 330 connected to the bracket 100 may be adhered to the second plastic frame 120.

The sound generating device a disclosed in the embodiment of the present application sets the second vibration assembly 300 to include the second voice coil 310, the second dome 320 and the third gimbal portion 330, so that the second voice coil 310 can drive the second dome 320 to vibrate in the energized state, so that the second dome 320 drives the third gimbal portion 330 to vibrate, and sound is generated under the vibration action of the second dome 320 and the third gimbal portion 330.

In another embodiment, the second vibration assembly 300 may include a diaphragm and a second voice coil 310, where the diaphragm may be disposed on the support 100, and the second voice coil 310 may be directly connected to the diaphragm to drive the diaphragm to vibrate for sounding. Of course, the second vibration assembly 300 may have other structures, and the embodiment of the present application is not limited to the specific structure of the second vibration assembly 300.

In order to facilitate the sounding of the sounding device a, optionally, the sounding device a may further include a first magnetic component 400 and a second magnetic component 500, the bracket 100 may have an accommodating space, the first magnetic component 400 and the second magnetic component 500 may be disposed in the accommodating space, and the first magnetic component 400 surrounds the second magnetic component 500. The first magnetic assembly 400 may be used to magnetically cooperate with the first voice coil 210 in the energized state of the first voice coil 210 to make the first voice coil 210 vibrate with the first dome 220, and the second magnetic assembly 500 may be used to magnetically cooperate with the second voice coil 310 in the energized state of the second voice coil 310 to make the second voice coil 310 vibrate with the second dome 320, thereby realizing the sound emission of the sound emitting device a. Of course, the first voice coil 210 may vibrate under the combined action of the first magnetic assembly 400 and the second magnetic assembly 500 in the energized state, and the second voice coil 310 may vibrate under the combined action of the first magnetic assembly 400 and the second magnetic assembly 500 in the energized state, and the manner of matching the first voice coil 210 and the second voice coil 310 with the first magnetic assembly 400 and the second magnetic assembly 500 is not limited in this application.

The first magnetic assembly 400 may have a first annular magnetic gap 401, and at least a portion of the first voice coil 210 is located in the first annular magnetic gap 401, so that the first annular magnetic gap 401 may provide an installation space for at least a portion of the first voice coil 210, thereby facilitating the compactness of the structure of the sound generating device a, and meanwhile, the first annular magnetic gap 401 facilitates the transmission of a magnetic field, thereby facilitating the magnetic cooperation of the first voice coil 210 and the first magnetic assembly 400.

In another embodiment, the first voice coil 210 and the second voice coil 310 may be connected to a motor, so that the first voice coil 210 and the second voice coil 310 may vibrate under the driving action of the motor, thereby driving the corresponding first dome 220 and second dome 320 to vibrate. Of course, the first voice coil 210 and the second voice coil 310 may also vibrate through other structures to drive the corresponding first dome 220 and second dome 320 to vibrate, and the specific structure for realizing the vibration of the first voice coil 210 and the second voice coil 310 is not limited in the embodiment of the present application.

In one implementation, the first magnetic assembly 400 may include a first magnetic member 410 and a first magnetic conductive member 420, where the first magnetic conductive member 420 may be provided with a first groove, the first magnetic member 410 may be disposed in the first groove, and the first magnetic member 410 may form a first annular magnetic gap 401 with an inner wall of the first groove. The first magnetic conductive member 420 may guide the magnetic field of the first magnetic member 410 such that the magnetic field of the first magnetic member 410 is concentrated in the first annular magnetic gap 401.

The sound generating device a disclosed in this embodiment sets up the first magnetic assembly 400 to the structure including first magnetic element 410 and first magnetic element 420 for first magnetic element 410 can be located in the first recess of first magnetic element 420, thereby makes the inner wall of first magnetic element 410 and first recess enclose into first annular magnetic gap 401, and first magnetic element 420 can lead the magnetic field of first magnetic element 410, so that the magnetic field of first magnetic element 410 concentrates in first annular magnetic gap 401, thereby is favorable to the magnetic cooperation of first voice coil 210 and first magnetic element 410.

In an alternative embodiment, the first magnetic assembly 400 may further include a second magnetic conductive member 430, and the second magnetic conductive member 430 may be disposed on a side of the first magnetic member 410 facing the first dome 220.

The sound generating device a disclosed in the embodiment of the present application is configured with the second magnetic conductive member 430 on the side of the first magnetic member 410 facing the first dome 220, so as to avoid the influence of the magnetic field generated by the first magnetic member 410 on the movement of the first dome 220, and the second magnetic conductive member 430 is also beneficial to guiding the magnetic field generated by the first magnetic member 410 into the first annular magnetic gap 401.

In order to make the structure of the sound generating apparatus a more compact, optionally, a second annular magnetic gap 501 may be formed between the first magnetic assembly 400 and the second magnetic assembly 500, and at least a portion of the second voice coil 310 may be located in the second annular magnetic gap 501. The second voice coil 310 may vibrate under the combined action of the first magnetic assembly 400 and the second magnetic assembly 500 in the energized state.

The sound generating device a disclosed in the embodiment of the present application is configured to form the second annular magnetic gap 501 by arranging the first magnetic assembly 400 and the second magnetic assembly 500, so that at least a portion of the second voice coil 310 may be located in the second annular magnetic gap 501, thereby facilitating the compactness of the structure of the sound generating device a, and the second annular magnetic gap 501 is beneficial to converging the magnetic field, thereby facilitating the vibration of the second voice coil 310.

Specifically, the second magnetic assembly 500 may include a second magnetic member 510 and a third magnetic member 520, where the second magnetic member 510 may be used to magnetically cooperate with the second voice coil 310, and the third magnetic member 520 may be disposed on a side of the second magnetic member 510 facing the second dome 320 to block the magnetic field generated by the second magnetic member 510 from affecting the vibration of the second dome 320.

An alternative embodiment, the sound emitting device a may have a first sound emitting mode and a second sound emitting mode. In the first sound emission mode, the first sound wave emitted from the first vibration assembly 200 has a phase opposite to that of the second sound wave emitted from the second vibration assembly 300. In the second sound emission mode, the phase of the first sound wave emitted from the first vibration assembly 200 is the same as the phase of the second sound wave emitted from the second vibration assembly 300.

In the sound generating device a disclosed in the embodiment of the present application, in the first sound generating mode, the phase of the first sound wave sent by the first vibration component 200 is opposite to the phase of the second sound wave sent by the second vibration component 300, so that the first sound wave and the second sound wave cancel at the intersection, thereby being beneficial to eliminating the leakage sound in the receiver mode. In the second sound emission mode, the phase of the first sound wave emitted from the first vibration assembly 200 is the same as the phase of the second sound wave emitted from the second vibration assembly 300, so that the first sound wave and the second sound wave are added at the intersection, thereby facilitating the external emission of sound in the speaker mode.

In order to avoid the sound emitted by the first vibration assembly 200 and the second vibration assembly 300 from interfering with each other at the sound source, optionally, the sound generating apparatus a may further include an apparatus housing 600, where the stand 100, the first vibration assembly 200, and the second vibration assembly 300 are disposed in the apparatus housing 600, and the apparatus housing 600 may be provided with a first sound outlet 601 and a second sound outlet 602, where the first sound outlet 601 may be opposite to the first vibration assembly 200, and in particular, the first sound outlet 601 may be opposite to at least a portion of the first dome 220, the first collar 230, and the second collar 240, so that the sound generated by the vibration of the first dome 220, the first collar 230, and the second collar 240 may be transmitted from the first sound outlet 601. The second sound outlet 602 may be opposite to the second vibration assembly 300, and in particular, the second sound outlet 602 may be opposite to at least a partial region of at least one of the second dome 320 and the third folded ring portion 330, so that sound generated by vibration of the second dome 320 and the third folded ring portion 330 may be transmitted from the second sound outlet 602. So that the first vibration assembly 200 can sound through the first sound outlet and the second vibration assembly 300 can sound through the second sound outlet 602, thereby avoiding interference of the sound emitted from the first vibration assembly 200 and the second vibration assembly 300 at the sound source.

The application discloses electronic equipment, disclosed electronic equipment includes sound generating mechanism A that the above-mentioned embodiment disclosed. The electronic device disclosed by the embodiment of the application can optimize the sounding of the sounding device A by arranging the sounding device A disclosed by the embodiment.

In an alternative embodiment, the electronic device may include a frame 700 and a screen 800, where the screen 800 may be disposed on the frame 700 and enclose a first sound guiding channel 701 with the frame 700, and the first sound guiding channel 701 may be in communication with the first sound outlet 601. Specifically, the first sound outlet 601 may be configured to sound toward the front of the electronic device, that is, sound toward one side of the screen 800, and of course, the first sound outlet 601 may also face the back or the side of the electronic device. The first sound outlet 601 and the first sound guide channel 701 may form a first front cavity of the sound generating apparatus a.

The electronic device disclosed in the embodiment of the present application encloses the first sound guiding channel 701 through the frame 700 and the screen 800, so that the frame 700 and the screen 800 can be fully utilized, and the first sound guiding channel 701 can be prevented from being opened by other structures, thereby being beneficial to the compactness of the electronic device.

Further, the frame 700 may be provided with a second sound guiding channel 702, and the second sound guiding channel 702 may be communicated with the second sound outlet 602. The second sound outlet 602 may be configured to sound toward a side of the electronic device, and of course, the second sound outlet 602 may also face toward a back or front of the electronic device. The second sound outlet 602 and the second sound guide channel 702 may form a second front cavity of the sound emitting device a.

The electronic device disclosed in the embodiment of the present application is provided with the second sound guiding channel 702 on the frame 700, so that the second sound guiding channel 702 can be communicated with the second sound outlet 602, and thereby sound production of the electronic device from the second sound outlet 602 can be realized.

The electrical device disclosed in the embodiment of the present application may further include a rear cover 900, where the rear cover 900 may be disposed on a side of the frame 700 away from the screen 800, and the frame 700, the screen 800, and the rear cover 900 may enclose an inner cavity of the electronic device, and the sound generating apparatus a may be disposed in the inner cavity of the electronic device.

In the embodiment of the application, the electronic device may be an electronic device such as a mobile phone, a tablet, a game machine, etc., and the application is not limited to a specific type of the electronic device.

The foregoing embodiments of the present invention mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims (13)

1. The sound generating device is characterized by comprising a bracket (100) and a first vibration component (200), wherein the first vibration component (200) is arranged on the bracket (100), the first vibration component (200) is an annular structural member, and the sound generating device comprises a first vibration component and a second vibration component,

the first vibration assembly (200) comprises a first voice coil (210), a first dome (220), a first ring-folding part (230) and a second ring-folding part (240), the first ring-folding part (230) is connected with the first dome (220) and surrounds the first dome (220), the first dome (220) is connected with the second ring-folding part (240) and surrounds the second ring-folding part (240), one side of the first ring-folding part (230) away from the first dome (220) is connected with the bracket (100), and one side of the second ring-folding part (240) away from the first dome (220) is connected with the bracket (100);

the first voice coil (210) is connected with the first dome (220), the distance between the first voice coil (210) and the first ring folding portion (230) is equal to the distance between the first voice coil (210) and the second ring folding portion (240), and the first voice coil (210) is used for driving the first dome (220) to vibrate under the power-on state so that the first dome (220) drives the first ring folding portion (230) and the second ring folding portion (240) to vibrate synchronously.

2. The sound emitting device according to claim 1, wherein the sound emitting device (a) further comprises a second vibration assembly (300), the second vibration assembly (300) being provided to the holder (100), the first vibration assembly (200) surrounding the second vibration assembly (300).

3. The sound generating apparatus according to claim 2, wherein the second vibration assembly (300) includes a second voice coil (310), a second dome (320), and a third gimbal portion (330), one end of the third gimbal portion (330) is connected to the bracket (100), the other end of the third gimbal portion (330) is connected to the second dome (320), and the third gimbal portion (330) surrounds the second dome (320), and the second voice coil (310) is connected to the second dome (320) and is used for driving the second dome (320) to vibrate the third gimbal portion (330).

4. A sound emitting device according to claim 3, wherein the sound emitting device (a) further comprises a first magnetic assembly (400) and a second magnetic assembly (500), the support (100) has a receiving space, the first magnetic assembly (400) and the second magnetic assembly (500) are both arranged in the receiving space, the first magnetic assembly (400) surrounds the second magnetic assembly (500), the first magnetic assembly (400) has a first annular magnetic gap (401), and at least part of the first voice coil (210) is located in the first annular magnetic gap (401).

5. The sound generating device according to claim 4, wherein the first magnetic assembly (400) comprises a first magnetic member (410) and a first magnetic conductive member (420), the first magnetic conductive member (420) is provided with a first groove, the first magnetic member (410) is disposed in the first groove, and the first magnetic member (410) and an inner wall of the first groove enclose the first annular magnetic gap (401).

6. The sound emitting device of claim 5, wherein the first magnetic assembly (400) further comprises a second magnetically permeable member (430), the second magnetically permeable member (430) being disposed on a side of the first magnetic member (410) facing the first dome (220).

7. A sound generating device according to claim 3, characterized in that a second annular magnetic gap (501) is formed between the first magnetic assembly (400) and the second magnetic assembly (500), at least part of the second voice coil (310) being located within the second annular magnetic gap (501).

8. The sound emitting device of claim 7, wherein the second magnetic assembly (500) comprises a second magnetic member (510) and a third magnetic member (520), the third magnetic member (520) being disposed on a side of the second magnetic member (510) facing the second dome (320).

9. The sound emitting device according to claim 2, wherein the sound emitting device (a) has a first sound emitting mode and a second sound emitting mode,

in the first sound emission mode, the phase of the first sound wave emitted by the first vibration component (200) is opposite to the phase of the second sound wave emitted by the second vibration component (300);

in the second sound emission mode, the phase of the first sound wave emitted by the first vibration assembly (200) is the same as the phase of the second sound wave emitted by the second vibration assembly (300).

10. The sound generating device according to claim 2, wherein the sound generating device (a) further comprises a device housing (600), the bracket (100), the first vibration assembly (200) and the second vibration assembly (300) are all disposed in the device housing (600), the device housing (600) is provided with a first sound outlet (601) and a second sound outlet (602), the first sound outlet (601) is opposite to the first vibration assembly (200), and the second sound outlet (602) is opposite to the second vibration assembly (300).

11. An electronic device characterized by comprising a sound emitting arrangement (a) according to any one of claims 1 to 10.

12. The electronic device according to claim 11, wherein the electronic device is the electronic device according to claim 10, the electronic device comprising a frame (700) and a screen (800), the screen (800) being arranged on the frame (700) and enclosing a first sound guiding channel (701) with the frame (700), the first sound guiding channel (701) being in communication with the first sound outlet (601).

13. The electronic device of claim 12, wherein the frame (700) defines a second sound guide channel (702), the second sound guide channel (702) being in communication with the second sound outlet (602).