CN117041400A - Electronic equipment - Google Patents

Abstract

The application discloses electronic equipment, and belongs to the technical field of electronic products. An electronic device includes: the loudspeaker comprises a screen, a frame body and a loudspeaker, wherein the loudspeaker comprises a first part and a second part, the first part comprises a first vibrating diaphragm, and the second part comprises a second vibrating diaphragm; the arrangement direction of the first part and the second part is parallel to the screen; the first front cavity of the first vibrating diaphragm faces the screen and is communicated with the first sound outlet; the second front cavity of the second vibrating diaphragm is away from the screen and is communicated with the second sound outlet; the first sound outlet is formed at a gap position between the frame body and the screen, and the second sound outlet is formed on the frame body; in a first state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in phase; in the second state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in opposite phases.

Description

Electronic equipment

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to electronic equipment.

Background

The communication function of the electronic equipment is a basic function, and when a user holds the equipment to communicate, the sound of the electronic equipment can be leaked to the external environment, so that the privacy of the user is leaked.

In order to improve the sound leakage of the earphone, the sound leakage prevention is realized mainly by making the rear cavity of the earphone leak and making the rear cavity of the earphone and the sound wave of the front cavity of the earphone reversely overlapped. However, when the electronic equipment provided by the scheme is used for realizing sound leakage prevention, sounding modes of different scenes cannot be well considered, and the driving mode is not flexible enough.

Disclosure of Invention

The embodiment of the application aims to provide electronic equipment, which can solve the problems that the sounding modes of different scenes can not be well considered and the driving mode is not flexible enough when the existing electronic equipment is used for realizing sound leakage prevention.

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

in a first aspect, an embodiment of the present application provides an electronic device, including: the loudspeaker comprises a screen, a frame body and a loudspeaker, wherein the loudspeaker comprises a first part and a second part, the first part comprises a first vibrating diaphragm, and the second part comprises a second vibrating diaphragm; the arrangement direction of the first part and the second part is parallel to the screen;

the first front cavity of the first vibrating diaphragm faces the screen and is communicated with the first sound outlet hole; the second front cavity of the second vibrating diaphragm is away from the screen and is communicated with the second sound outlet;

the first sound outlet is formed at a gap position between the frame body and the screen, and the second sound outlet is formed on the frame body;

in a first state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in phase; in the second state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in opposite phases.

In an embodiment of the present application, an electronic device includes: the loudspeaker comprises a screen, a frame body and a loudspeaker, wherein the loudspeaker comprises a first part and a second part, the first part comprises a first vibrating diaphragm, and the second part comprises a second vibrating diaphragm; the arrangement direction of the first part and the second part is parallel to the screen; the first front cavity of the first vibrating diaphragm faces the screen, and the first front cavity is communicated with the first sound outlet; the second front cavity of the second vibrating diaphragm is away from the screen, and the second front cavity is communicated with the second sound outlet; the first sound outlet is formed at a gap position between the frame body and the screen, and the second sound outlet is formed at the top of the frame body; in the first state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in the same phase, so that the effect of the loudspeaker during external playing can be improved; under the second state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in opposite phase, so that the effect of preventing conversation from leaking can be achieved. Therefore, according to the use situation and the sound requirement of the electronic equipment, different sound waves can be emitted by the loudspeaker, for example, when the electronic equipment is in an outward-playing mode, the first vibrating diaphragm and the second vibrating diaphragm can be in a first state, and the best outward-playing effect is achieved; when the electronic equipment is in the earphone mode, the first vibrating diaphragm and the second vibrating diaphragm can be in the second state so as to avoid conversation leakage, and therefore sounding modes of different scenes can be well considered, and the driving mode is more flexible.

Drawings

FIG. 1 shows one of the schematic diagrams of the forward and reverse placement of two diaphragms according to an embodiment of the present application;

FIG. 2 is a schematic diagram showing the forward and reverse placement of two diaphragms according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 4 is a second schematic diagram of an electronic device according to an embodiment of the application;

FIG. 5 is a third schematic diagram of an electronic device according to an embodiment of the application;

FIG. 6 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 9 is a schematic diagram of an electronic device according to an embodiment of the present application;

FIG. 10 is a schematic diagram showing a structure of a motherboard bracket according to an embodiment of the present application;

FIG. 11 shows a second schematic structural view of a motherboard bracket according to an embodiment of the present application;

FIG. 12 is a schematic illustration of the placement of three diaphragms in accordance with an embodiment of the present application;

FIG. 13 is a second schematic diagram showing placement of three diaphragms according to an embodiment of the present application;

fig. 14 shows a schematic structural diagram of an electronic device according to an embodiment of the present application.

FIG. 15 is a diagram showing a ninth configuration of an electronic device according to an embodiment of the present application;

FIG. 16 is a schematic illustration of the placement of four diaphragms in accordance with an embodiment of the present application;

FIG. 17 is a second schematic diagram showing placement of four diaphragms according to an embodiment of the present application;

FIG. 18 shows a third schematic structural view of a motherboard bracket according to an embodiment of the present application;

FIG. 19 is a schematic view showing a structure of an electronic device according to an embodiment of the present application;

FIG. 20 is a diagram showing an eleventh embodiment of an electronic device;

fig. 21 shows a schematic diagram of an electronic device according to an embodiment of the application.

Reference numerals illustrate:

1-a screen; 2-a frame; 3-a rear cover; 4-a motherboard bracket; 41-a sound guide channel; 42-mounting holes; a1-a first diaphragm; a2-a second diaphragm; a3-a third diaphragm; a4-a fourth diaphragm; a11-a first anterior chamber; a12-a first rear cavity; a21-a second anterior chamber; a22-a second rear cavity; a31-a third anterior chamber; a41-fourth front cavity; b1-a first sound outlet hole; b2-a second sound outlet hole; b3-a third sound outlet hole; 5-a main board; 6-soaking cotton; 7-cover plate.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application may be practiced otherwise than as specifically illustrated or described herein. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The control method provided by the embodiment of the application is described in detail through specific embodiments and application scenes thereof with reference to the accompanying drawings.

Referring to fig. 1 to 11, an embodiment of the present application provides an electronic device, including: the loudspeaker comprises a screen 1, a frame body 2 and a loudspeaker, wherein the loudspeaker comprises a first part and a second part, the first part comprises a first vibrating diaphragm a1, and the second part comprises a second vibrating diaphragm a2; the first and second portions are arranged in a direction parallel to the screen 1; the first front cavity a11 of the first vibrating diaphragm a1 faces the screen 1, and the first front cavity a11 is communicated with the first sound outlet b 1; the second front cavity a21 of the second diaphragm a2 faces away from the screen 1, and the second front cavity a21 is communicated with the second sound outlet b 2.

As shown in fig. 3, a first sound outlet b1 is formed at a gap position between the frame 2 and the screen 1, and a second sound outlet b2 is provided on the frame 2; in the first state, the first vibrating diaphragm a1 and the second vibrating diaphragm a2 vibrate in phase; in the second state, the first diaphragm a1 vibrates in opposite phase with the second diaphragm a 2.

Referring to fig. 1 to 5, fig. 4 is an internal schematic view of the privacy screen 1, and fig. 5 is an internal schematic view of the privacy back cover 3. The first vibrating diaphragm a1 is placed forward, the second vibrating diaphragm a2 is placed reversely, the first vibrating diaphragm a1 and the second vibrating diaphragm a2 are placed forward and reversely, the vibrating diaphragm of the front cavity facing the screen 1 is called forward placing, and the vibrating diaphragm of the front cavity facing away from the screen 1 and facing the rear cover 3 is called reverse placing.

Specifically, the speaker further includes: the first voice coil is connected with the first vibrating diaphragm a1, the second voice coil is connected with the second vibrating diaphragm a2, the first magnetic circuit component corresponds to the first vibrating diaphragm a1, and the second magnetic circuit component corresponds to the second vibrating diaphragm a2; the magnetic circuit assembly provides a magnetic field for the electrified voice coil, so that voice coil motion is achieved, and when the magnetic circuit assembly drives the first voice coil and the second voice coil to vibrate, the first vibrating diaphragm a1 and the second vibrating diaphragm a2 can be driven to vibrate in an in-phase or reverse mode, and sound wave transmission is achieved. Specifically, when the first magnetic circuit assembly and the second magnetic circuit assembly input in-phase current, the first diaphragm a1 and the second diaphragm a2 vibrate in-phase; when the first magnetic circuit assembly and the second magnetic circuit assembly input the reverse current, the first vibrating diaphragm a1 and the second vibrating diaphragm a2 vibrate in reverse phase.

It should be noted that, since the fitting structure between the voice coil, the diaphragm and the magnetic circuit assembly is a conventional structural design, it is not described in detail here.

In the above embodiment, different sound waves may be emitted from the speaker according to the usage scenario and the sound requirement of the electronic device, for example, when the electronic device is in the play mode, the first diaphragm and the second diaphragm may be in the first state, so as to achieve a better play effect; when the electronic equipment is in the earphone mode, the first vibrating diaphragm and the second vibrating diaphragm can be in a second state, so that two sounds are offset in air propagation, call leakage is avoided, sounding modes of different scenes can be well considered, and the driving mode is more flexible.

Referring to fig. 6, 10 and 11, in an embodiment, the electronic device further includes: the main board support 4 is provided with a mounting hole 42, and the second vibrating diaphragm a2 is arranged in the mounting hole 42; the main board support 4 is provided with a sound guide channel 41, and the sound guide channel 41 is communicated with the second sound outlet b2 and the second front cavity a21 of the second vibrating diaphragm a 2.

In this embodiment, the main board support 4 is used for carrying the main board 5, and by providing the sound guiding channel 41 and the mounting hole 42 on the main board support 4, the sound wave generated by the second diaphragm a2 is guided to the second sound outlet b2 through the sound guiding channel 41, so as to propagate in the air.

Alternatively, the first diaphragm a1 and the second diaphragm a2 each have independent front and rear cavities.

As an implementation manner, the main board support 4 and the foam 6 enclose a second front cavity a21 forming the second vibrating diaphragm a2, the cover board 7 and the frame 2 enclose a second rear cavity a22 forming the second vibrating diaphragm a2, and air leakage is placed between the cover board 7 and the frame 2 through foam sealing.

As an implementation manner, the main board support 4 and the foam 6 enclose a first front cavity a11 forming the first vibrating diaphragm a1, a first rear cavity a12 of the first vibrating diaphragm a1 is sealed through the main board support 4, and air leakage is placed between the main board support 4 and the main board 5 through the foam 6.

In the above embodiment, the combination of the two diaphragm monomers is more beneficial to saving space and volume than the combination of two discrete speaker monomers; moreover, the two diaphragms can be driven and controlled by two independent controllers to work independently. Thus, the algorithm module is used for debugging the frequency response and the phase of the two sound outlet holes, so that the sound leakage prevention effect is improved, and the sound leakage prevention and sound enhancement functions of different stacking modes are realized through the forward and reverse discharge of the vibrating diaphragm so as to adapt to the sound production modes of different scenes. In addition, the combination of the double diaphragms can effectively reduce the space in the Z direction (the thickness direction of the electronic equipment).

Exemplary application scenarios include: (1) in the conversation scene of the earphone mode, the first vibrating diaphragm a1 emits forward sound waves, the second vibrating diaphragm a2 emits sound waves which are opposite to the first vibrating diaphragm a1, so that phase offset at a far position can be realized, the sound leakage prevention function is realized, and the safety of information is ensured. (2) In the play scene (music playing scene), the two diaphragms can be controlled to produce sounds in the same phase, so that the sounds are overlapped, and a high volume mode is realized; (3) when the user needs to play at a small volume, the user can self-define to close the vibration at one place, and the electricity saving function is realized.

Referring to fig. 12 to 15, based on the above embodiment, further, the second portion further includes: a third diaphragm a3, the third diaphragm a3 and the second diaphragm a2 being stacked in a thickness direction of the electronic device;

wherein, the third front cavity a31 of the third diaphragm a3 faces the screen 1, and the third front cavity a31 is communicated with the first sound outlet b 1;

in the third state, at least two of the first diaphragm a1, the second diaphragm a2 and the third diaphragm a3 vibrate in phase;

in the fourth state, one of the first diaphragm a1, the second diaphragm a2, and the third diaphragm a3 vibrates;

in the fifth state, the first vibrating diaphragm a1 and the third vibrating diaphragm a3 vibrate in opposite phase, and the second vibrating diaphragm a2 does not work;

in the sixth state, the first vibrating diaphragm a1 and the second vibrating diaphragm a2 vibrate in opposite phase, and the third vibrating diaphragm a3 does not work;

in the seventh state, the second diaphragm a2 vibrates in opposite phase with the third diaphragm a3, and the first diaphragm a1 does not operate.

For example, referring to fig. 12 to 15, fig. 14 is an internal schematic view of the screen 1 after the part thereof is hidden, and fig. 15 is an internal schematic view of the rear cover 3 is hidden, the first front cavity a11 of the first diaphragm a1 and the third front cavity a31 of the third diaphragm a3 are disposed toward the screen 1, i.e., the first diaphragm a1 and the third diaphragm a3 are disposed forward, and the second front cavity a21 of the second diaphragm a2 is disposed toward the rear cover 3, i.e., the second diaphragm a2 is disposed reversely.

In the above embodiment, three diaphragms are included in one speaker unit, the first diaphragm a1 and the third diaphragm a3 emit sound through the first sound emitting hole b1 (the micro-gap formed between the frame 2 and the screen), the second diaphragm a2 emits sound through the second sound emitting hole b2 located at the top of the frame 2, and the three diaphragms are separately and independently controlled, so that the three diaphragms are in different states, that is, different application scenarios can be applied, and the driving is more flexible.

For example, in a call scene, the three diaphragms may be in the fifth state, the sixth state or the seventh state, so as to realize a sound leakage prevention function; in the outward-playing mode, different diaphragms can be selected to work according to sound requirements, for example, when a large volume is needed, three diaphragms can be in a third state according to the needed volume, and when a small volume is needed, the three diaphragms are controlled to be in a fourth state, so that electric energy is saved; wherein, three vibrating diaphragms vibrate in phase, realize maximum volume, and two vibrating diaphragms vibrate in phase and realize medium volume.

In addition, the three diaphragms vibrate in the same phase, so that a stereophonic effect can be achieved.

In one embodiment, the second portions share a rear chamber.

That is, the third diaphragm a3 corresponds to the same rear cavity as the second diaphragm a 2. Thus, the space occupied by the speaker unit can be saved.

Optionally, a closed structure is designed in the single body of the rear cavities of the third diaphragm a3 and the second diaphragm a2, such as a cavity formed by surrounding an annular structure, and the closed structure is combined with foam sealing. The first rear cavity a12 forming the first vibrating diaphragm a1 is enclosed by the main board support 4 and the main board 5, and the main board support 4 and the main board 5 are sealed through foam, so that air leakage is prevented.

In an embodiment, the second portion includes a second rear cavity a22 and a third rear cavity, the second rear cavity a22 corresponds to the second diaphragm a2, and the third rear cavity corresponds to the third diaphragm a3.

That is, the third diaphragm a3 and the second diaphragm a2 respectively correspond to an independent rear cavity.

Optionally, a third rear cavity (not shown) forming the third diaphragm a3 is surrounded by the main board support 4 and the foam 6, and a second rear cavity a22 forming the second diaphragm a2 is surrounded by the main board support 4 and the foam 6. The first rear cavity a12 forming the first vibrating diaphragm a1 is enclosed by the main board support 4 and the main board 5, and the main board support 4 and the main board 5 are sealed by foam 6 to prevent air leakage.

Referring to fig. 16 to 21, based on the above embodiment, further, the first portion further includes: a fourth diaphragm a4, the fourth diaphragm a5 and the first diaphragm a1 are stacked in the thickness direction of the electronic device;

wherein the fourth front cavity a41 of the fourth diaphragm a4 faces away from the screen 1, and the fourth front cavity a41 of the fourth diaphragm a4 is communicated with the third sound outlet b 3;

in the eighth state, the first diaphragm a1 and the fourth diaphragm a4 vibrate in opposite phase, and the second diaphragm a2 and the third diaphragm a3 do not work;

in the ninth state, the second diaphragm a2 and the third diaphragm a3 vibrate in opposite phase, and the first diaphragm a1 and the fourth diaphragm a4 do not work;

in the tenth state, at least two of the first diaphragm a1, the second diaphragm a2, the third diaphragm a3, and the fourth diaphragm a4 vibrate in phase;

in the eleventh state, one of the first diaphragm a1, the second diaphragm a2, the third diaphragm a3, and the fourth diaphragm a4 vibrates.

For example, referring to fig. 16 to 17, the first front cavity a11 of the first diaphragm a1 and the third front cavity a31 of the third diaphragm a3 are disposed forward toward the screen 1, i.e., the first diaphragm a1 and the third diaphragm a3, and the second front cavity a21 of the second diaphragm a2 and the fourth front cavity a41 of the fourth diaphragm a4 are disposed reverse toward the rear cover 3, i.e., the second diaphragm a2 and the fourth diaphragm a4.

As shown in fig. 20 and 21, the first diaphragm a1 and the third diaphragm a3 play a sound through a first sound hole b1 (a micro-seam formed between the frame 2 and the screen), the second diaphragm a2 plays a sound through a second sound hole b2 located at the top of the frame 2, and the fourth diaphragm a4 plays a sound through a third sound hole b3 formed in the back cover 3.

In the above embodiment, one speaker unit includes four diaphragms, and the four diaphragms are separately and independently controlled, so that the four diaphragms are in different states, and thus, the speaker unit can be applied to different application scenes, and the driving is more flexible.

For example, in a call scene, the four diaphragms may be in the eighth state or the ninth state, so as to realize a sound leakage prevention function; in the outward-playing mode, different diaphragms can be selected to work according to sound requirements, for example, when a large volume is needed, three diaphragms can be in a tenth state according to the required volume, and when a small volume is needed, the three diaphragms are controlled to be in an eleventh state, so that electric energy is saved; wherein, four vibrating diaphragms vibrate in phase, and three vibrating diaphragms vibrate in phase. The two vibrating diaphragms vibrate in phase, three volume sizes can be achieved, and a stereo effect can be achieved.

In an embodiment, the electronic device further comprises: a rear cover 3, wherein the frame 2 is fixedly connected with the rear cover 3 at one side far away from the screen 1; wherein the third sound outlet b3 is provided on the rear cover 3.

Illustratively, referring to fig. 18 and 19, the main board support 4 and the rear cover 3 are each provided with a third sound outlet b3 at a corresponding position of the fourth diaphragm a4, and sound waves emitted from the fourth diaphragm a4 are conducted into the air through the third sound outlet b 3.

In one embodiment, the first portions share a rear chamber.

That is, the fourth diaphragm a4 corresponds to the same rear cavity as the first diaphragm a 1. Thus, the occupied space of the speaker unit can be saved.

Optionally, a closed structure is designed in the interior of the single body in the rear cavity of the fourth diaphragm a4 and the first diaphragm a1, such as a cavity formed by surrounding an annular structure, and the sealing is combined with foam 6.

In an embodiment, the first portion includes a first rear cavity a12 and a fourth rear cavity, the first rear cavity a12 corresponds to the first diaphragm a1, and the fourth rear cavity corresponds to the fourth diaphragm a4.

That is, the fourth diaphragm a4 and the first diaphragm a1 have a separate rear cavity, respectively.

Optionally, the first rear cavity a12 of the fourth diaphragm a4 and the first diaphragm a1 are respectively formed by surrounding the main board support 4 and the foam 6.

In one embodiment, the first portion and the second portion share a rear cavity.

That is, the first diaphragm a1, the second diaphragm a2, the third diaphragm a3 and the fourth diaphragm a4 correspond to the same rear cavity. Thus, the occupied space of the speaker unit can be saved.

Optionally, the rear cavities corresponding to the first diaphragm a1, the second diaphragm a2, the third diaphragm a3 and the fourth diaphragm a4 are designed with a closed structure in the interior of the monomer, for example, a cavity formed by surrounding the closed structure is sealed by combining foam 6; for example, a closed back cavity is formed by the main board bracket 4, the main board 5, the loudspeaker, the frame body 2 and the foam 6.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application 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 application and the scope of the claims, which are to be protected by the present application.

Claims (10)

1. An electronic device, comprising: a screen, a frame, and a speaker, the speaker comprising a first portion comprising a first diaphragm and a second portion comprising a second diaphragm; the arrangement direction of the first part and the second part is parallel to the screen;

the first front cavity of the first vibrating diaphragm faces the screen and is communicated with the first sound outlet hole; the second front cavity of the second vibrating diaphragm is away from the screen and is communicated with the second sound outlet;

the first sound outlet is formed at a gap position between the frame body and the screen, and the second sound outlet is formed on the frame body;

in a first state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in phase; in the second state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in opposite phases.

2. The electronic device of claim 1, wherein the second portion further comprises: a third diaphragm that overlaps the second diaphragm in a thickness direction of the electronic device;

the third front cavity of the third vibrating diaphragm faces the screen, and the third front cavity is communicated with the first sound outlet;

in a third state, at least two of the first diaphragm, the second diaphragm and the third diaphragm vibrate in phase;

in a fourth state, one of the first diaphragm, the second diaphragm, and the third diaphragm vibrates;

in a fifth state, the first vibrating diaphragm and the third vibrating diaphragm vibrate in opposite phases, and the second vibrating diaphragm does not work;

in a sixth state, the first vibrating diaphragm and the second vibrating diaphragm vibrate in opposite phases, and the third vibrating diaphragm does not work;

in a seventh state, the second diaphragm and the third diaphragm vibrate in opposite phase, and the first diaphragm does not work.

3. The electronic device of claim 2, wherein the first portion further comprises: a fourth diaphragm that overlaps the first diaphragm in a thickness direction of the electronic device;

the fourth front cavity of the fourth vibrating diaphragm is away from the screen, and the fourth front cavity of the fourth vibrating diaphragm is communicated with the third sound outlet;

in an eighth state, the first vibrating diaphragm and the fourth vibrating diaphragm vibrate in opposite phases, and the second vibrating diaphragm and the third vibrating diaphragm do not work;

in a ninth state, the second vibrating diaphragm and the third vibrating diaphragm vibrate in opposite phases, and the first vibrating diaphragm and the fourth vibrating diaphragm do not work;

in a tenth state, at least two of the first diaphragm, the second diaphragm, the third diaphragm, and the fourth diaphragm vibrate in phase;

in the eleventh state, one of the first diaphragm, the second diaphragm, the third diaphragm, and the fourth diaphragm vibrates.

4. The electronic device of claim 3, wherein the electronic device further comprises: the frame body is fixedly connected with the rear cover at one side far away from the screen; wherein, the third sound outlet is arranged on the rear cover.

5. The electronic device of claim 2 or 3, wherein the electronic device further comprises: the main board support is provided with a mounting hole, and the second vibrating diaphragm is arranged in the mounting hole; and the main board support is provided with a sound guide channel which is communicated with the second sound outlet and the second front cavity of the second vibrating diaphragm.

6. An electronic device as claimed in claim 2 or 3, characterized in that the second parts share a rear cavity.

7. An electronic device as claimed in claim 2 or 3, characterized in that the second part comprises a second rear chamber and a third rear chamber, the second rear chamber corresponding to the second diaphragm and the third rear chamber corresponding to the third diaphragm.

8. The electronic device of claim 3, wherein the first portion shares a rear cavity.

9. The electronic device of claim 3, wherein the first portion comprises a first back chamber and a fourth back chamber, the first back chamber corresponding to the first diaphragm and the fourth back chamber corresponding to the fourth diaphragm.

10. The electronic device of claim 3, wherein the first portion and the second portion share a rear cavity.