CN115967900A - Electronic device - Google Patents

Abstract

The embodiment of the application provides electronic equipment, and relates to the field of electronics. The electronic device comprises a frame body, a screen and an acoustic assembly; the screen is arranged on the frame body; the acoustic assembly is connected with the frame body, the acoustic assembly is located between the frame body and the screen, the acoustic assembly comprises a shell, a first vibrating diaphragm and a second vibrating diaphragm, the first vibrating diaphragm and the second vibrating diaphragm are arranged on the shell, a first rear cavity is arranged between the first vibrating diaphragm and the second vibrating diaphragm, and when the acoustic assembly works in a loudspeaker mode and is located in a first volume scene, the first vibrating diaphragm moves relative to the second vibrating diaphragm in the direction far away from the second vibrating diaphragm.

Description

Electronic device

Technical Field

The application belongs to the field of electronics, especially relates to an electronic equipment.

Background

With the rapid development of electronic technology, electronic devices such as smart phones and tablet computers are becoming more and more popular and becoming an indispensable part of people's daily life. In order to meet the increasingly high requirements of people on electronic equipment.

With the development of technology, users are pursuing improved audio performance of electronic devices such as mobile phones, especially low-frequency effect of speakers of the electronic devices. However, in order to save the occupied space inside the electronic device, the electronic device does not have enough space to increase the size of the rear cavity of the speaker, thereby making it difficult for the speaker to obtain a good low-frequency effect.

Disclosure of Invention

The embodiment of the application provides electronic equipment, which can at least solve the problem that the electronic equipment has poor low-frequency effect.

An embodiment of the present application provides an electronic device including a frame, a screen, and an acoustic assembly; the screen is arranged on the frame body; the acoustic assembly is connected with the frame body, the acoustic assembly is located between the frame body and the screen, the acoustic assembly comprises a shell, a first vibrating diaphragm and a second vibrating diaphragm, the first vibrating diaphragm and the second vibrating diaphragm are arranged on the shell, a first rear cavity is arranged between the first vibrating diaphragm and the second vibrating diaphragm, and when the acoustic assembly works in a loudspeaker mode and is located in a first volume scene, the first vibrating diaphragm moves relative to the second vibrating diaphragm in the direction far away from the second vibrating diaphragm.

The electronic equipment provided in the embodiment of the application, the electronic equipment comprises a frame body, a screen and an acoustic assembly, the acoustic assembly comprises a shell, a first vibrating diaphragm and a second vibrating diaphragm, a first back cavity is arranged between the first vibrating diaphragm and the second vibrating diaphragm, the acoustic assembly works in a loudspeaker mode, and when the acoustic assembly is in a first volume scene, the second vibrating diaphragm can normally vibrate and sound, the first vibrating diaphragm moves relative to the second vibrating diaphragm along the direction far away from the second vibrating diaphragm, the volume of the first back cavity between the first vibrating diaphragm and the second vibrating diaphragm is increased through the movement of the first vibrating diaphragm, so that the volume of the total back cavity of the acoustic assembly is increased, the sound performance of the acoustic assembly is improved, the low-frequency effect of sound amplification is improved, the sound is enabled to be more mellow and full, in addition, the increase of the volume of the total back cavity can also achieve the purpose of power saving, and the service life of the electronic equipment is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device in a first volume scenario according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an electronic device in a non-first volume scenario according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an acoustic assembly of an electronic device of an embodiment of the present application;

FIG. 4 is an exploded schematic view of the acoustic assembly of the electronic device of an embodiment of the present application;

fig. 5 is a schematic structural diagram of a housing of an electronic device according to an embodiment of the present application;

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

fig. 7 is an exploded schematic view of an electronic device according to an embodiment of the present application.

Description of reference numerals:

100. an electronic device;

10. a frame body; 11. a limiting part; 111. a through groove; 12. a second sound outlet;

20. a screen;

30. an acoustic assembly; 31. a housing; 311. a first housing; 312. a second housing; 32. a first diaphragm; 33. a second diaphragm; 34. a first rear cavity; 35. a second rear cavity;

40. a first front cavity;

50. a first sound outlet;

60. a second front cavity;

70. a first seal member;

80. a second seal member;

90. a rear cover; 91. a main board; 92. a sub-board; 93. a battery; 94. a speaker;

a first direction x.

Detailed Description

Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present application; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the description of the present application, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicate an orientation or positional relationship that is merely for convenience in describing the application and to simplify the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected. The specific meaning of the above terms in this application can be understood as appropriate by one of ordinary skill in the art.

In order to solve the existing technical problems, the embodiment of the present application provides an electronic device 100 and an electronic device. For better understanding of the present application, the electronic device 100 according to the embodiment of the present application is described in detail below with reference to fig. 1 to 7.

The electronic device provided in the embodiments of the present application will be described first.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an electronic device in a first volume scene according to an embodiment of the present application; FIG. 2 is a schematic structural diagram of an electronic device in a non-first volume scenario according to an embodiment of the present application; fig. 3 is a schematic structural diagram of an acoustic assembly of an electronic device according to an embodiment of the present application.

As shown in fig. 1 to 3, the present application provides an electronic device 100 including a frame 10, a screen 20, and an acoustic assembly 30. The screen 20 is provided in the frame 10. The acoustic assembly 30 is connected to the frame 10, the acoustic assembly 30 is located between the frame 10 and the screen 20, the acoustic assembly 30 includes a casing 31, a first diaphragm 32 and a second diaphragm 33, the first diaphragm 32 and the second diaphragm 33 are disposed on the casing 31, and a first back cavity 34 is provided between the first diaphragm 32 and the second diaphragm 33, wherein, when the acoustic assembly 30 operates in the speaker mode and the acoustic assembly 30 is in a first volume scene, the first diaphragm 32 moves relative to the second diaphragm 33 in a direction away from the second diaphragm 33.

The frame 10 is a peripheral component of the electronic device 100, and the frame 10 is a base mounting component of the electronic device 100, which can provide a mounting base and protection for components such as the screen 20 and the acoustic assembly 30, and can also provide support for a part of the screen 20.

The shape, size, material, and the like of the frame 10 may be set according to actual requirements, for example, the frame 10 may be circular, rectangular, triangular, or the like, and the shape is not limited herein.

In the embodiment of the present application, the frame body 10 may be an integrated structure, for example, the integrated structure may be formed by compression molding, bending, cold pressing, or the like, and the frame body 10 may also be a split structure, for example, the frame body 10 includes a first frame body 10 and a second frame body 10, and the first frame body 10 and the second frame body 10 are spliced to form the frame body 10.

The screen 20 may serve as a display member of the electronic device 100 to feed back some information of the electronic device 100 to the user, and the user may also operate through the screen 20 to input related information. The screen 20 is connected to the frame 10, and for example, the screen 20 is bonded to the frame 10.

The acoustic assembly 30 is a device of the electronic apparatus 100 capable of emitting sound, the acoustic assembly 30 is located between the frame 10 and the screen 20, and the acoustic assembly 30 is connected to the frame 10. Specifically, the acoustic assembly 30 can be connected to the frame 10 by bonding, connecting, plugging, clamping, or the like. The acoustic assembly 30 includes a housing 31, a first diaphragm 32, and a second diaphragm 33, the housing 31 is a shell portion of the acoustic assembly 30, the first diaphragm 32 and the second diaphragm 33 are sound generating portions of the acoustic assembly 30, and the first diaphragm 32 and the second diaphragm 33 are disposed in the housing 31 and connected to the housing 31. The acoustic assembly 30 includes two sound waves, such as a first sound wave from the sound waves generated by the vibration of the first diaphragm 32 and a second sound wave from the sound waves generated by the vibration of the second diaphragm 33. Specifically, the housing 31 includes a first sound cavity and a second sound cavity, which are oppositely disposed, wherein the first sound wave is output from the first sound cavity, the second sound wave is output from the second sound cavity, and an output direction of the first sound wave is different from an output direction of the second sound wave, so that the acoustic assembly 30 achieves a two-way sound outputting effect, and further, the acoustic assembly 30 can respectively work in different modes, such as a speaker mode, a receiver mode, and the like.

In an embodiment of the application, a first back cavity 34 is provided between the first diaphragm 32 and the second diaphragm 33. As the electronic device 100 is miniaturized, the internal space layout of the electronic device 100 becomes more compact, the volume of the total back cavity of the acoustic assembly 30 is limited to the internal space of the electronic device 100, the available space of the total back cavity of the acoustic assembly 30 becomes more tight, the volume of the total back cavity determines the sound performance of the acoustic assembly 30, and the volume of the total back cavity becomes smaller, which results in poor sound performance, especially low frequency effect, of the electronic device 100.

In the embodiment of the present application, the vibration of the first diaphragm 32 can form a first acoustic wave, and the vibration of the second diaphragm 33 can form a second acoustic wave. The vibration direction of the first diaphragm 32 and the vibration direction of the second diaphragm 33 may be the same or different. Under the condition that the acoustic assembly 30 works in the receiver mode, at least one of the first diaphragm 32 and the second diaphragm 33 vibrates, so that the acoustic assembly 30 is located in different sound scenes, that is, the first diaphragm 32 vibrates and forms a first sound wave, the second diaphragm 33 vibrates and forms a second sound wave, the first sound wave and the second sound wave have the same phase, and in this case, the first sound wave and the second sound wave with the same phase are respectively transmitted from the electronic device 100 and then superposed, so that the purpose of enhancement is achieved, and finally, generation of a larger sound is achieved; alternatively, the second diaphragm 33 vibrates and forms the second sound wave, and the first diaphragm 32 does not vibrate, and at this time, only the second sound wave sounds, in which case, the generation of a small sound in the receiver mode is achieved.

In the embodiment of the application, when the acoustic assembly 30 operates in the speaker mode and the acoustic assembly 30 is in a first volume scenario, the second diaphragm 33 vibrates normally and forms a second sound wave, and the first diaphragm 32 moves relative to the second diaphragm 33 in a direction away from the second diaphragm 33, so that the volume of the first back cavity 34 between the first diaphragm 32 and the second diaphragm 33 is increased as a whole, thereby improving the sound performance and further improving the low-frequency effect of the electronic device 100.

In the embodiment of the present application, when the acoustic assembly 30 is in the first volume scenario, the first diaphragm 32 moves relative to the second diaphragm 33 in the direction away from the second diaphragm 33, and a force, such as a pressure or a tensile force, may be applied to the second diaphragm 33, so that the second diaphragm 33 moves in the direction away from the second diaphragm 33; a static magnetic field may also be applied to the second diaphragm 33 to move the second diaphragm 33 in a direction away from the second diaphragm 33. The first volume scenario of the present application is a low volume scenario or a medium volume scenario when operating in speaker mode, and the acoustic assembly 30 may also be in other volume scenarios, such as a second volume scenario, a third volume scenario, \8230;, etc., where the volume of each volume scenario is different.

The electronic device 100 provided in this embodiment of the application includes a frame 10, a screen 20, and an acoustic assembly 30, where the acoustic assembly 30 includes a casing 31, a first diaphragm 32, and a second diaphragm 33, a first back cavity 34 is provided between the first diaphragm 32 and the second diaphragm 33, the acoustic assembly 30 operates in a speaker mode, and when the acoustic assembly 30 is in a first volume scene, the second diaphragm 33 can normally vibrate and sound, the first diaphragm 32 moves relative to the second diaphragm 33 in a direction away from the second diaphragm 33, and the movement of the first diaphragm 32 increases the volume of the first back cavity 34 between the first diaphragm 32 and the second diaphragm 33, so as to increase the total back cavity volume of the acoustic assembly 30, improve the sound performance of the acoustic assembly 30, and improve the low-frequency effect of sound playing, so that the sound is more mellow, furthermore, the increase of the total back cavity volume can also achieve the purpose of saving power, and increase the use duration of the electronic device 100.

In some alternative embodiments, as shown in fig. 1 and fig. 2, the first diaphragm 32 is disposed on a side of the casing 31 facing the screen 20, and the first diaphragm 32, the screen 20, the frame 10, and the casing 31 enclose a first front cavity 40, wherein during a process of the first diaphragm 32 moving in a direction away from the second diaphragm 33, a volume of the first front cavity 40 decreases.

In the embodiment of the application, the first diaphragm 32 is disposed on one side of the casing 31 facing the screen 20, the first diaphragm 32, the screen 20, the frame 10, and the casing 31 enclose to form the first front cavity 40, the vibration of the first diaphragm 32 can form a first sound wave, and the first sound wave is transmitted to the outside of the electronic device 100 through the first front cavity 40, so as to implement sound production. The first diaphragm 32 moves relative to the second diaphragm 33 in a direction away from the second diaphragm 33, and the movement of the first diaphragm 32 increases the volume of a first rear cavity 34 between the first diaphragm 32 and the second diaphragm 33, and decreases the volume of a first front cavity 40 enclosed by the first diaphragm 32, the screen 20, the frame 10, and the housing 31, which can be understood as that the movement of the first diaphragm 32 changes the volume of the first rear cavity 34 and the volume of the first front cavity 40.

In the embodiment of the present application, during the movement of the first diaphragm 32, the difference of the volume change of the first front cavity 40 is equal to the difference of the volume change of the first back cavity 34, or the difference of the volume change of the first front cavity 40 is greater than the difference of the volume change of the first back cavity 34.

In the embodiment of the present application, the electronic apparatus 100 is provided with the first sound outlet 50 and the second sound outlet 12, and both the first sound outlet 50 and the second sound outlet 12 are used for sound output. Specifically, a first sound wave generated by the vibration of the first diaphragm 32 propagates to the outside of the electronic device 100 through the first front cavity 40 and the first sound outlet in sequence. The second sound waves generated by the vibration of the second diaphragm 33 will propagate to the outside of the electronic device 100 through the second sound outlet. The first sound outlet 50 may be disposed on the frame 10 or at the connection point between the frame 10 and the screen 20. The second sound outlet 12 may be opened on the frame 10 and also opened at the connection between the frame 10 and the screen 20.

In these alternative embodiments, the volume increase of the first back cavity 34 is achieved by moving the first diaphragm 32 in a direction away from the second diaphragm 33, and the volume of the first front cavity 40 is correspondingly reduced, so that the space inside the electronic device 100 is fully utilized, and the volume increase of the first back cavity 34 does not result in a change in the overall space of the electronic device 100, thereby facilitating miniaturization of the electronic device 100. In addition, in the first volume scene, the second sound wave emitted by the vibration of the second diaphragm 33 is the dominant sound emitting component, so that the change of the volume of the first front cavity 40 does not affect the normal sound emission of the acoustic assembly 30 in the first volume scene.

With combined reference to fig. 4 and 5, fig. 4 is an exploded schematic view of an acoustic assembly of an electronic device according to an embodiment of the present application; fig. 5 is a schematic structural diagram of a housing of an electronic device according to an embodiment of the present application.

In some alternative embodiments, as shown in fig. 1, 4 and 5, the frame 10 is provided with a limiting portion 11, the limiting portion 11 is disposed on a side of the frame 10 away from the screen 20, the housing 31 is connected to the limiting portion 11, the limiting portion 11 is provided with a through groove 111, the through groove 111 is communicated with the first front cavity 40, and the through groove 111 can avoid the first diaphragm 32.

Exemplarily, the frame body 10 is provided with the limiting portion 11, the limiting portion 11 is disposed on one side of the frame body 10 away from the screen 20, specifically, the limiting portion 11 may be a concave groove recessed inwards on one side of the frame body 10, a part of the housing 31 extends into the concave groove, a part of the housing 31 is disposed in cooperation with the housing 31, so that the housing 31 and the limiting portion 11 form a fitting structure, the fitting structure can play a role in positioning, and the assembly process of the housing 31 and the limiting portion 11 can be simplified, meanwhile, the fitting structure can also increase the connection area, and increase the contact stability.

Alternatively, one of the limiting part 11 and the shell 31 may be provided with a positioning groove, and the other one is provided with a positioning boss, and the positioning groove and the positioning boss are in positioning fit. With this arrangement, the stability of connection between the frame 10 and the acoustic module 30 can be increased.

In these alternative embodiments, the first diaphragm 32 and the second diaphragm 33 have a first back cavity 34 therebetween, and the additional addition of the first back cavity 34 adds no new components, so that the occupied space of the acoustic assembly 30 can be made smaller. In the process of increasing the volume of the first rear cavity 34, the through groove 111 can avoid the movement of the first diaphragm 32, and a barrier is formed by the limiting part 11 and other parts, so that the influence on other parts can be reduced, and the use experience of a user can be improved.

In some alternative embodiments, when the acoustic assembly 30 is in the first volume scenario, the first diaphragm 32 is located in the dc magnetic field or the dc electric field, and the first diaphragm 32 moves in the through groove 111 to the preset position in the direction away from the second diaphragm 33.

In the embodiment of the present application, by applying a dc magnetic field or a dc electric field, the first diaphragm 32 is moved in a direction away from the second diaphragm 33, and when the dc magnetic field or the dc electric field disappears, that is, when the acoustic assembly 30 is in a non-first volume scene, the first diaphragm 32 can be restored to the initial state.

Illustratively, a direct current magnetic field or a direct current electric field is applied to make the acoustic assembly 30 in a first volume scenario, the first diaphragm 32 moves from an initial position in a direction away from the second diaphragm 33, and when the first diaphragm 32 moves to a preset position, the direct current magnetic field or the direct current electric field is continuously input, and at this time, the first diaphragm 32 maintains at the preset position; when no dc magnetic field or dc electric field is applied, i.e. the acoustic assembly 30 is in a non-first volume scenario, the first diaphragm 32 returns to its original position, and therefore, the acoustic assembly 30 is not affected to be in other volume scenarios or other operation modes.

Alternatively, the preset position is a maximum position of the movement of the first diaphragm 32.

In some embodiments of the present application, the first diaphragm 32 applies a direct current signal through the driving chip, the first diaphragm 32 is located in the direct current magnetic field, the first diaphragm 32 moves in a direction away from the first diaphragm 32, a maximum movement distance of the first diaphragm 32 is Xmm, and because the first diaphragm 32 moves to increase a volume of the first back cavity 34, the first diaphragm 32 moves in the direction away from the first diaphragm 32 to bring about that the volume of the first back cavity 34 increases to a volume of V as shown in formula 1: v = lxyxx, where V is an increased volume of the first back cavity 34, L is a length of the first diaphragm 32, Y is a width of the first diaphragm 32, and X is a maximum moving distance of the first diaphragm 32.

In these alternative embodiments, by applying a dc magnetic field or a dc electric field, the first diaphragm 32 moves in a direction away from the second diaphragm 33, so that the acoustic assembly 30 can be located in different volume scenes by only one diaphragm being located in different magnetic fields, which has the advantages of simple operation, convenience, and high efficiency.

In some alternative embodiments, the gap between the screen 20 and the frame 10 forms a first sound outlet 50, and the first sound outlet 50 communicates with the first front cavity 40.

In the embodiment of the present application, the opening shape of the first sound outlet 50 is rectangular, circular, trapezoidal, or the like.

In these alternative embodiments, a gap is formed between the assembly of the screen 20 and the frame 10, and this gap can be used as the first sound outlet 50, and thus, by using the assembly gap as the first sound outlet 50, the existing structure of the electronic device 100 can be fully utilized, and the first sound outlet 50 does not need to be additionally provided on the frame 10. In addition, the fitting gap is generally small, and the fitting gap is used as the first sound outlet 50, so that intrusion of foreign matter into the electronic apparatus 100 can be reduced.

With reference to fig. 6, fig. 6 is a schematic structural diagram of a part of an electronic device according to an embodiment of the present application.

In some alternative embodiments, as shown in fig. 1 and 6, the frame body 10 is provided with a second sound outlet 12. The second diaphragm 33 and the first diaphragm 32 are spaced and arranged oppositely, the second diaphragm 33, the frame 10 and the housing 31 enclose to form a second front cavity 60, and the second front cavity 60 is communicated with the second sound outlet 12.

In the embodiment of the present application, the second diaphragm 33 and the first diaphragm 32 are spaced apart and are disposed opposite to each other, and the second diaphragm 33 and the first diaphragm 32 have the same vibration direction.

In the embodiment of the present application, the second sound wave generated by the vibration of the second diaphragm 33 sequentially passes through the second front cavity 60 and the second sound outlet 12, and is propagated to the outside of the electronic device 100.

In some alternative embodiments, as shown in fig. 3 and 4, the housing 31 includes a first housing 311 and a second housing 312. The first housing 311 is connected to the limiting portion 11, the first housing 311 is connected to the first diaphragm 32, and the first diaphragm 32, the screen 20, the frame 10, and the first housing 311 enclose to form a first front cavity 40. The second casing 312 is connected to the first casing 311, and the second casing 312 is connected to the second diaphragm 33, and the second diaphragm 33, the frame 10, and the second casing 312 enclose to form the second front cavity 60.

In the embodiment of the present application, the casing 31 includes a first casing 311 and a second casing 312, the first casing 311 has a first sound cavity, the first diaphragm 32 is disposed in the first sound cavity and connected to the first diaphragm 32, the second casing 312 has a second sound cavity, the second diaphragm 33 is disposed in the second sound cavity and connected to the second diaphragm 33, the second casing 312 is connected to the first casing 311, and the second diaphragm 33 is disposed at an interval from the first diaphragm 32.

Optionally, the acoustic assembly 30 includes a first housing 311, a second housing 312, a first diaphragm 32 and a second diaphragm 33, where the first diaphragm 32 and the second diaphragm 33 form a dual-diaphragm sound output component, the dual-diaphragm sound output component is first installed on the first housing 311, and then the first housing 311 and the second housing 312 are hermetically connected through ultrasonic sealing.

In these alternative embodiments, the housing 31 is a split structure, and includes a first housing 311 and a second housing 312, where the first housing 311, the first diaphragm 32, the screen 20, and the frame 10 enclose to form a first front cavity 40, and the second housing 312, the second diaphragm 33, and the frame 10 enclose to form a second front cavity 60, so that the acoustic assembly 30 can output sound in two directions, and the acoustic assembly 30 can be switched between a receiver mode and a speaker mode. Moreover, the split structure design is beneficial to the assembly of the acoustic assembly 30.

In some alternative embodiments, as shown in fig. 3 and 4, the first housing 311, the second housing 312, the first diaphragm 32, and the second diaphragm 33 form a second back cavity 35, and the second back cavity 35 is communicated with the first back cavity 34.

In the embodiment of the present application, the second diaphragm 33 and the first diaphragm 32 are spaced and disposed opposite to each other, a first back cavity 34 is provided between the second diaphragm 33 and the first diaphragm 32, and the first shell 311, the second shell 312, the second diaphragm 33, and the first diaphragm 32 form a second back cavity 35. The second rear chamber 35 communicates with the first rear chamber 34.

Optionally, the second rear cavity 35 is the overall rear cavity of the acoustic assembly 30. During the movement of the first diaphragm 32 relative to the second diaphragm 33 in a direction away from the second diaphragm 33, the gap between the second diaphragm 33 and the first diaphragm 32 increases, and therefore, during the movement of the second diaphragm 33, the volume of the first back cavity 34 between the second diaphragm 33 and the first diaphragm 32 is mainly increased, and further, the volume of the second back cavity 35 is increased.

In these alternative embodiments, this arrangement can reduce the overall structural changes of the acoustic assembly 30 and reduce the overall space occupied by the acoustic assembly 30.

In some alternative embodiments, as shown in fig. 1, the second casing 312 has an end surface extending to the second sound outlet 12, and the end surface abuts against the frame 10. The electronic device 100 further includes a first sealing member 70 and a second sealing member 80, the first sealing member 70 is disposed around the limiting portion 11, the first sealing member 70 is located between the first housing 311 and the limiting portion 11, and the second sealing member 80 is located between the end surface and the frame 10.

In the embodiment of the present application, the first sealing member 70 is selected from one of a double-sided tape, a foam, or a silicone.

In the embodiment of the present application, the second sealing member 80 is selected from one of a double-sided tape, a foam, or a silicone.

In these alternative embodiments, the first front cavity 40 and the second front cavity 60 are sealed and isolated from other internal cavities in the electronic device 100 by the first sealing member 70 and the second sealing member 80, and the first sealing member 70 is located between the first housing 311 and the limiting portion 11, so that the first sealing member 70 is disposed near the first diaphragm 32, and the second sealing member 80 is located between the end surface of the second housing 312 and the frame 10, so that the second sealing member 80 is disposed near the second diaphragm 33, and therefore, the first diaphragm 32 and the second diaphragm 33 can be damped.

In some alternative embodiments, when the acoustic assembly 30 is operating in the speaker mode and the acoustic assembly 30 is in a second volume scenario, the first sound wave formed by the vibration of the first diaphragm 32 and the second sound wave formed by the vibration of the second diaphragm 33 have the same phase, and the volume of the second volume scenario is greater than the volume of the first volume scenario.

Specifically, the acoustic assembly 30 includes two sound waves, such as a first sound wave from the sound wave generated by the vibration of the first diaphragm 32 and a second sound wave from the sound wave generated by the vibration of the second diaphragm 33. The first diaphragm 32 vibrates and forms first acoustic waves, which are transmitted out of the first sound outlet 50 through the first front cavity 40. The second diaphragm 33 vibrates and forms a second sound wave, which is transmitted from the second sound outlet 12 through the second front cavity 60. The first sound wave and the second sound wave have the same phase and are superposed with each other, so that a second volume scene, namely a high pitch scene, is realized in the loudspeaker mode. The second diaphragm 33 vibrates and forms a second sound wave, the second sound wave is transmitted out from the second sound outlet 12 through the second front cavity 60, the first diaphragm 32 does not vibrate, at this time, only the second sound wave sounds, so that in the speaker mode, a first volume scene, namely a mid-low volume scene, is realized, and therefore, the volume of the second volume scene is greater than that of the first volume scene.

In these alternative embodiments, when the acoustic assembly 30 operates in the speaker mode and the acoustic assembly 30 is in the second volume scenario, the first sound wave formed by the vibration of the first diaphragm 32 and the second sound wave formed by the vibration of the second diaphragm 33 have the same phase, and the first sound wave and the second sound wave having the same phase are superimposed on each other to achieve volume enhancement, so that the volume of the second volume scenario is greater than the volume of the first volume scenario.

In some alternative embodiments, in the case where the acoustic assembly 30 operates in the receiver mode, the first sound waves formed by the vibration of the first diaphragm 32 and the second sound waves formed by the vibration of the second diaphragm 33 are opposite in phase.

Specifically, the acoustic assembly 30 includes two sound waves, such as a first sound wave from the sound wave generated by the vibration of the first diaphragm 32 and a second sound wave from the sound wave generated by the vibration of the second diaphragm 33. The first diaphragm 32 vibrates and forms first acoustic waves, which are transmitted out of the first sound outlet 50 through the first front cavity 40. The second diaphragm 33 vibrates and forms a second sound wave, which is transmitted from the second sound outlet 12 through the second front cavity 60. Under the condition that acoustics subassembly 30 work in the receiver mode, the first sound wave that first vibrating diaphragm 32 vibration formed and the second sound wave that second vibrating diaphragm 33 formed are opposite in phase place, lead to first sound wave and second sound wave to offset each other, and the short circuit takes place for sound, and the volume of having realized acoustics subassembly 30 output is less, makes the sound that the user was answered closely, and conversation content is difficult to be heard by other people far away, and then solves the problem of lou, and then protects conversation privacy betterly.

Referring to fig. 7 in combination, fig. 7 is an exploded schematic view of an electronic device according to an embodiment of the present application.

In some alternative embodiments, as shown in fig. 1 and 7, the electronic device 100 further includes a back cover 90, the back cover 90 covers the frame 10, the back cover and the frame 10 form a receiving cavity, and at least a part of the acoustic assembly 30 is disposed in the receiving cavity.

In some optional embodiments, the electronic device 100 further includes a main board 91 and a sub-board 92, the main board 91 and the sub-board 92 are disposed between the rear cover and the frame 10, the main board 91 and the sub-board 92 are disposed along a first direction x, the first direction x is perpendicular to a thickness direction of the electronic device 100, a battery 93 is connectable to the main board, the battery is disposed between the main board 91 and the sub-board 92, a speaker 94 is disposed between the sub-board 92 and the rear cover 90, and sound emitting directions of the speaker 94 and the acoustic assembly 30 may be the same or different.

In the embodiment of the present application, the electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a Personal Digital Assistant (PDA).

Other configurations and operations of the electronic device according to the embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein.

Other configurations and operations of electronic devices according to embodiments of the present application are known to those of ordinary skill in the art and will not be described in detail herein in the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "exemplary," "in embodiments of the present application," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the application has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (11)

1. An electronic device, comprising:

a frame body;

the screen is arranged on the frame body;

the acoustic assembly is connected with the frame body and is positioned between the frame body and the screen, the acoustic assembly comprises a shell, a first vibrating diaphragm and a second vibrating diaphragm, the first vibrating diaphragm and the second vibrating diaphragm are arranged on the shell, a first rear cavity is arranged between the first vibrating diaphragm and the second vibrating diaphragm,

wherein, when the acoustic assembly operates in a speaker mode and the acoustic assembly is in a first volume scenario, the first diaphragm moves relative to the second diaphragm in a direction away from the second diaphragm.

2. The electronic device of claim 1,

the first diaphragm is arranged on one side of the shell facing the screen, the first diaphragm, the screen, the frame body and the shell enclose to form a first front cavity,

wherein the volume of the first front cavity is reduced during movement of the first diaphragm in a direction away from the second diaphragm.

3. The electronic device of claim 2,

the frame body is provided with a limiting portion, the limiting portion is arranged on one side, away from the screen, of the frame body, the shell is connected with the limiting portion, a through groove is formed in the limiting portion, the through groove is communicated with the first front cavity, and the through groove can avoid the first vibrating diaphragm.

4. The electronic device of claim 3,

when the acoustic assembly is in a first volume scene, the first diaphragm is located in a direct-current magnetic field or a direct-current electric field, and the first diaphragm moves to a preset position in the through groove along a direction far away from the second diaphragm.

5. The electronic device of claim 4,

the screen and the clearance between the framework form a first sound outlet, and the first sound outlet is communicated with the first front cavity.

6. The electronic device of claim 3,

the frame body is provided with a second sound outlet;

the second vibrating diaphragm and the first vibrating diaphragm are arranged at intervals and oppositely, the second vibrating diaphragm, the frame body and the shell are enclosed to form a second front cavity, and the second front cavity is communicated with the second sound outlet.

7. The electronic device of claim 6, wherein the housing comprises:

the first shell is connected with the limiting part and the first vibrating diaphragm, the screen, the frame body and the first shell enclose to form a first front cavity;

the second shell is connected with the first shell, the second shell is connected with the second vibrating diaphragm, and the second vibrating diaphragm, the frame body and the second shell are enclosed to form a second front cavity.

8. The electronic device of claim 7,

the first shell, the second shell, the first vibrating diaphragm and the second vibrating diaphragm form a second rear cavity, and the second rear cavity is communicated with the first rear cavity.

9. The electronic device of claim 7,

the second shell is provided with an end face extending to the second sound outlet, the end face is abutted against the frame body,

the electronic equipment further comprises a first sealing piece and a second sealing piece, the first sealing piece surrounds the limiting part, the first sealing piece is located between the first shell and the limiting part, and the second sealing piece is located between the end face and the frame body.

10. The electronic device of claim 1,

under the condition that the acoustic assembly works in a loudspeaker mode and is in a second volume scene, the phases of a first sound wave formed by vibration of the first diaphragm and a second sound wave formed by vibration of the second diaphragm are the same, and the volume of the second volume scene is larger than that of the first volume scene.

11. The electronic device of claim 1,

under the condition that the acoustic assembly works in a receiver mode, the phases of a first sound wave formed by the vibration of the first diaphragm and a second sound wave formed by the vibration of the second diaphragm are opposite.

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