Sound production assembly and electronic equipment

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a sound production assembly and electronic equipment, and the sound production assembly comprises a first driving unit, a second driving unit, a first vibration unit and a second vibration unit. Wherein the first vibration unit and the second vibration unit are arranged oppositely. The first driving unit and the second driving unit are both located between the first vibration unit and the second vibration unit. The first driving unit is in transmission connection with the first vibration unit so as to drive the first vibration unit to generate vibration. And the second driving unit is in transmission connection with the second vibration unit so as to generate a piezoelectric effect to drive the second vibration unit to generate vibration. According to the sound production assembly, through the first vibration unit and the second vibration unit which are arranged back to back, the sound production assembly can produce two groups of mutually counteracted sounds, and the sound leakage condition is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a sound-generating component and an electronic equipment. Background Art

[0002] The sound-generating component is a device used to convert electrical signals into sound signals. It is applied to electronic devices as speakers or receivers of electronic devices.

[0003] The sound-emitting component includes a sound-emitting body capable of reciprocating motion. The sound emitted by the sound-emitting body through the reciprocating motion can be received by the user.

[0004] In the related art, the sound emitted by the sound-emitting component is propagated in the form of waves, which makes it easy for the sound-emitting component to leak sound, making it easy for the sound to be received by other people besides the user. Utility Model Content

[0005] In view of this, the present application provides a sound-generating component and an electronic device to reduce sound leakage.

[0006] Specifically, the following technical solutions are included:

[0007] The first aspect of the present application provides a sound-generating component, the sound-generating component comprising a first drive unit, a second drive unit, a first vibration unit, and a second vibration unit. The first vibration unit and the second vibration unit are arranged opposite to each other. The first drive unit and the second drive unit are both located between the first vibration unit and the second vibration unit. The first drive unit is connected to the first vibration unit in a transmission manner so as to be able to drive the first vibration unit to vibrate. The second drive unit is connected to the second vibration unit in a transmission manner so as to drive the second vibration unit to vibrate by generating a piezoelectric effect.

[0008] Optionally, the first driving unit is closer to the first vibration unit than the second driving unit, the second driving unit is closer to the second vibration unit than the first driving unit, and a gap is formed between the second driving unit and the first driving unit.

[0009] Optionally, the second driving unit includes a piezoelectric portion and a connecting portion, and the connecting portion connects the piezoelectric portion and the second vibration unit.

[0010] Optionally, the first driving unit includes a magnetic hole and a coil, the magnetic hole is annular, the coil is located in the magnetic hole, and can move along the axial direction of the magnetic hole.

[0011] Optionally, the first driving unit further includes a core and a magnetic ring, the core is located inside the magnetic ring, and the core and the magnetic ring form the magnetic hole.

[0012] Optionally, the first driving unit includes a magnetic conductive portion, which connects the core and the magnetic ring and seals an end of the magnetic hole away from the first vibration unit.

[0013] Optionally, the first vibration unit includes a first spherical top and a first diaphragm ring, and the first spherical top is located on the inner side of the first diaphragm ring and connected to the first diaphragm ring.

[0014] Optionally, the second vibration unit includes a second dome and a second diaphragm ring, and the second dome is located on the inner side of the second diaphragm ring and connected to the second diaphragm ring.

[0015] Optionally, the sound-emitting component also includes a shell, the shell having a first opening, a second opening and a accommodating cavity, the first opening and the second opening are both connected to the accommodating cavity, the first drive unit and the second drive unit are located in the accommodating cavity, the first vibration unit is located at the first opening and connected to the shell, and the second vibration unit is located at the second opening and connected to the shell.

[0016] A second aspect of the present application provides an electronic device, which includes a sound-generating component as described in the above technical solution.

[0017] Optionally, the electronic device has a first sound outlet and a second sound outlet, the first vibration unit is closer to one end of the first sound outlet than the second vibration unit, and the second vibration unit is closer to one end of the second sound outlet than the first vibration unit.

[0018] Optionally, the first sound outlet hole and the second sound outlet hole are located on two opposite sides of the electronic device, or the first sound outlet hole and the second sound outlet hole are located on two adjacent sides of the electronic device.

[0019] The beneficial effects of the technical solution provided by the present application include at least: the first driving unit drives the first vibration unit to generate vibration, so that the first vibration unit can emit sound. The second driving unit drives the second vibration unit to generate vibration by generating a piezoelectric effect, so that the second vibration unit can emit sound, and at the same time, the thickness of the sound-emitting component of the present application can be reduced. The first driving unit and the second driving unit are both located between the first vibration unit and the second vibration unit, which can reduce the interference of the first driving unit and the second driving unit with the sound emitted by the sound-emitting component of the present application. The first vibration unit and the second vibration unit are arranged back to back, which is conducive to the sound emitted by both to propagate outward. At the same time, the first vibration unit and the second vibration unit are conducive to the sound-emitting component of the present application to emit two groups of sounds that can cancel each other, thereby reducing sound leakage.

[0020] In summary, the sound-emitting component of the present application, through the first vibration unit and the second vibration unit disposed opposite to each other, is conducive to the sound-emitting component of the present application emitting two groups of sounds that can cancel each other out, thereby reducing sound leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A full cross-sectional schematic diagram of a sound-generating component provided in an embodiment of the present application;

[0023] Figure 2 A full cross-sectional schematic diagram of a sound-generating component provided in an embodiment of the present application;

[0024] Figure 3 A full cross-sectional schematic diagram of a sound-emitting component provided in an embodiment of the present application, with a second drive unit and related structures thereof marked;

[0025] Figure 4 A full cross-sectional schematic diagram of a sound-emitting component provided in an embodiment of the present application, with a first drive unit and related structures thereof marked;

[0026] Figure 5 A full cross-sectional schematic diagram of a sound-emitting component provided in an embodiment of the present application, with a first vibration unit, a second vibration unit and related structures thereof marked;

[0027] Figure 6 A schematic cross-sectional view of a shell of a sound-emitting component provided in an embodiment of the present application;

[0028] Figure 7 A schematic cross-sectional view of an electronic device provided in an embodiment of the present application;

[0029] Figure 8 A full cross-sectional schematic diagram of another electronic device provided in an embodiment of the present application.

[0030] The reference numerals in the figures represent respectively:

[0031] 100, gap;

[0032] 1. first driving unit; 101. magnetic hole; 11. coil; 12. core; 13. magnetic ring; 14. magnetic conductive part;

[0033] 2. Second driving unit; 21. Piezoelectric part; 22. Connecting part;

[0034] 3. First vibration unit; 31. First dome; 32. First diaphragm ring;

[0035] 4. second vibration unit; 41. second dome; 42. second diaphragm ring;

[0036] 5. Shell; 501. First opening; 502. Second opening; 503. Accommodating chamber;

[0037] 601, first sound hole; 602, second sound hole.

[0038] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The directional nouns involved in the embodiments of the present application, such as "upper", "lower", "side", etc., are generally represented by Figure 1 The relative relationship of the orientation shown in the figure is used as the basis, and these orientation terms are used only to more clearly describe the relationship between structures, not to describe absolute orientation. When the product is placed in different postures, the orientation may change, for example, "up" and "down" may be interchangeable.

[0041] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0042] In order to make the technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0043] In the related art, since the sound emitted by the sound-emitting component propagates in the form of waves, it will generate sound waves in every direction in the space. This causes the sound emitted by the sound-emitting component to be received not only by the user but also by other people, resulting in sound leakage.

[0044] In order to solve the above technical problems to a certain extent, the first aspect of the present application provides a sound generating component, such as Figure 1As shown, the sound-generating component includes a first drive unit 1, a second drive unit 2, a first vibration unit 3, and a second vibration unit 4. The first vibration unit 3 and the second vibration unit 4 are arranged opposite to each other. The first drive unit 1 and the second drive unit 2 are both located between the first vibration unit 3 and the second vibration unit 4. The first drive unit 1 is connected to the first vibration unit 3 in a transmission manner so as to drive the first vibration unit 3 to vibrate. The second drive unit 2 is connected to the second vibration unit 4 in a transmission manner so as to drive the second vibration unit 4 to vibrate by generating a piezoelectric effect.

[0045] It is understandable that the first driving unit 1 drives the first vibration unit 3 to generate vibration, so that the first vibration unit 3 can emit sound. The second driving unit 2 drives the second vibration unit 4 to generate vibration by generating a piezoelectric effect, so that the second vibration unit 4 can emit sound, and at the same time, the thickness of the sound-emitting component of the present application can be reduced. The first driving unit 1 and the second driving unit 2 are both located between the first vibration unit 3 and the second vibration unit 4, which can reduce the interference caused by the first driving unit 1 and the second driving unit 2 to the sound emitted by the sound-emitting component of the present application. The first vibration unit 3 and the second vibration unit 4 are arranged back to back, which is conducive to the sound emitted by the two to propagate outward. At the same time, the first vibration unit 3 and the second vibration unit 4 are conducive to the sound-emitting component of the present application to emit two groups of sounds that can cancel each other, thereby reducing sound leakage.

[0046] In the embodiment of the present application, the first driving unit 1 can make the first vibration unit 3 emit sound by driving the first vibration unit 3 to generate vibration. The first vibration unit 3 can be closer to the user than the second vibration unit 4 so that the user can receive the sound it emits, and at the same time, the interference of the sound emitted by the second vibration unit 4 that cancels it can be reduced. The first vibration unit 3 can also be farther away from the user than the second vibration unit 4 to generate a sound that cancels the sound emitted by the first vibration unit 3 and prevent others from receiving the sound emitted by the second vibration unit 4. The first vibration unit 3 can optionally be driven by the first driving unit 1 to generate a changing magnetic field to generate vibrations and emit sound, or by generating an electrostatic force acting on the first vibration unit 3 to drive the first vibration unit 3 to generate vibrations and emit sound, or by generating a piezoelectric effect to drive the first vibration unit 3 to generate vibrations and emit sound.

[0047] In the embodiment of the present application, the second driving unit 2 drives the second vibration unit 4 to vibrate by generating a piezoelectric effect, so that the second vibration unit 4 can emit a sound, and at the same time, the thickness of the sound-emitting component of the present application can be reduced. Among them, the second vibration unit 4 can be closer to the user than the first vibration unit 3, so that the user can receive the sound emitted by it, and at the same time, the interference of the sound emitted by the first vibration unit 3 that cancels it can be reduced. The second vibration unit 4 can also be farther away from the user than the first vibration unit 3 to generate a sound that cancels the second vibration unit 4 and prevent other people from receiving the sound emitted by the first vibration unit 3. In addition, the second driving unit 2 that drives the second vibration unit 4 to vibrate by the piezoelectric effect has a relatively simple structure, which can reduce the space occupied by the second driving unit 2 between the first vibration unit 3 and the second vibration unit 4, so as to reduce the thickness of the sound-emitting component of the present application.

[0048] In the embodiment of the present application, the first drive unit 1 and the second drive unit 2 are both located between the first vibration unit 3 and the second vibration unit 4, which can reduce the interference of the first drive unit 1 and the second drive unit 2 with the sound emitted by the sound-emitting component of the present application. Specifically, the first drive unit 1 and the second drive unit 2 both have a certain volume, which will interfere with the sound. However, the purpose of the first vibration unit 3 and the second vibration unit 4 is to propagate the sound to a specific direction. In the embodiment of the present application, the specific direction refers to the direction in which the two are separated from each other. Since the first drive unit 1 and the second drive unit 2 are both located between the first vibration unit 3 and the second vibration unit 4, the direction in which the two interfere is opposite to the direction in which they propagate, thereby reducing the interference with the sound emitted by the sound-emitting component of the present application.

[0049] In the embodiment of the present application, the first vibration unit 3 and the second vibration unit 4 are arranged back to back, which is conducive to the sound emitted by the two to propagate outward. At the same time, the first vibration unit 3 and the second vibration unit 4 are conducive to the sound-emitting component of the present application to emit two groups of sounds that can cancel each other out, thereby reducing the situation of sound leakage. Taking the sound emitted by the first vibration unit 3 as the sound received by the user as an example, the first vibration unit 3 can be oriented towards the user when emitting the sound. Since the first vibration unit 3 and the second vibration unit 4 are arranged back to back, the second vibration unit 4 will turn away from the user. At this time, the second vibration unit 4 emits a sound that cancels it out. Among them, the first vibration unit 3 is closer to the user, so the sound emitted by the user is easier to be received by the user. The second vibration unit 4 is farther away from the user than the first vibration unit 3, so the sound emitted by the second vibration unit 4 is easier to be received by others, thereby reducing the situation of sound leakage.

[0050] In the embodiment of the present application, the first vibration unit 3 and the second vibration unit 4 can generate vibrations simultaneously to complement the deficiencies of the two in different frequency bands.

[0051] In the embodiment of the present application, the first driving unit 1 may be connected to the second driving unit 2 , or may be separated from the second driving unit 2 .

[0052] In summary, the sound-emitting component of the present application, through the first vibration unit 3 and the second vibration unit 4 disposed opposite to each other, is conducive to the sound-emitting component of the present application emitting two groups of sounds that can cancel each other out, thereby reducing sound leakage.

[0053] In some embodiments of the present application, the first drive unit 1 and the second drive unit 2 require a certain amount of space to complete the driving function. Figure 2 As shown, the first driving unit 1 is closer to the first vibration unit 3 than the second driving unit 2, and the second driving unit 2 is closer to the second vibration unit 4 than the first driving unit 1, and a gap 100 is formed between the second driving unit 2 and the first driving unit 1. In this way, the mutual interference between the first driving unit 1 and the second driving unit 2 can be reduced.

[0054] It can be understood that the gap 100 separates the first drive unit 1 and the second drive unit 2, so that the two work relatively independently, thereby reducing the situation where the first drive unit 1 drives the second vibration unit 4 to vibrate through the second drive unit 2, or the second drive unit 2 drives the first vibration unit 3 to vibrate through the first drive unit 1.

[0055] In the embodiment of the present application, the size of the gap 100 can be determined according to the space required by the first driving unit 1 and the second driving unit 2 when working.

[0056] In some of the embodiments of this application, Figure 3 As shown, the second driving unit 2 includes a piezoelectric part 21 and a connecting part 22, and the connecting part 22 connects the piezoelectric part 21 and the second vibration unit 4. In this way, the second driving unit 2 can drive the second vibration unit 4 to vibrate by generating a piezoelectric effect.

[0057] It can be understood that the piezoelectric portion 21 can generate deformation along the thickness direction through the piezoelectric effect, and the deformation can be transmitted to the second vibration unit 4 through the connecting portion 22, so that the second vibration unit 4 vibrates and emits sound.

[0058] In the embodiment of the present application, the piezoelectric part 21 may be a piezoelectric ceramic or a piezoelectric film. Wherein, when the piezoelectric part 21 is a piezoelectric ceramic, its material may include lead zirconate titanate. According to the needs of the actual situation, the ratio of lead zirconate titanate to other components may be adjusted. When the piezoelectric part 21 is a piezoelectric film, its material may be a piezoelectric polymer material, such as polyvinylidene fluoride, vinylidene fluoride trifluoroethylene copolymer, etc.

[0059] In an embodiment of the present application, the piezoelectric portion 21 may include a piezoelectric layer and a first conductive layer, and the piezoelectric layer is sandwiched between two first conductive layers, and can produce a piezoelectric effect and deform. When the number of piezoelectric layers is more than two, all piezoelectric layers are stacked and arranged between the two first conductive layers, and two adjacent piezoelectric layers are separated by a second conductive layer. Optionally, the number of piezoelectric layers may be 2, 3, 4 or other numbers. Optionally, the materials of the first conductive layer and the second conductive layer both include conductive metals.

[0060] In the embodiment of the present application, the piezoelectric part 21 may be connected to the first driving unit 1, and supported by the first driving unit 1. For example, the piezoelectric part 21 may be connected to the magnetic conductive part 14 of the first driving unit 1.

[0061] In some of the embodiments of this application, Figure 4 As shown, the first driving unit 1 includes a magnetic hole 101 and a coil 11. The magnetic hole 101 is annular. The coil 11 is located in the magnetic hole 101 and can move along the axial direction of the magnetic hole 101. In this way, the first driving unit 1 can generate axial vibration along the magnetic hole 101, which is conducive to driving the first vibration unit 3 to generate vibration.

[0062] Specifically, the magnetic hole 101 provides a space for the coil 11 to move. The coil 11 can pass alternating current to generate a changing magnetic field. When the direction of the magnetic field of the coil 11 is the same as that of the magnetic hole 101, the coil 11 will be repelled by the magnetic hole 101; when the direction of the magnetic field of the coil 11 is opposite to that of the magnetic hole 101, the coil 11 will be attracted by the magnetic hole 101. The process of repulsion and attraction causes the coil 11 to move back and forth and generate vibration. The vibration can drive the first vibration unit 3 to generate vibration.

[0063] In the embodiment of the present application, the coil 11 may be connected to the first vibration unit 3 to drive the first vibration unit 3 to vibrate.

[0064] In addition, the first driving unit 1 uses a changing magnetic field to drive the first vibration unit 3 to vibrate, which makes the first vibration unit 3 have a poor performance when emitting sounds with a frequency above 6000 Hz. The second driving unit 2 can drive the second vibration unit 4 to emit sounds to compensate for the performance of the first driving unit 2 in the above frequency band.

[0065] In some of the embodiments of this application, Figure 4 As shown, the first driving unit 1 further includes a core 12 and a magnetic ring 13 . The core 12 is located inside the magnetic ring 13 , and a magnetic hole 101 is formed between the core 12 and the magnetic ring 13 .

[0066] In the embodiment of the present application, the magnetic ring 13 can generate a magnetic field, and the core 12 can concentrate the magnetic lines of force of the magnetic field between the magnetic ring 13 and the core 12, so that a magnetic hole 101 can be formed to repel and attract the coil 11 to generate vibration.

[0067] Optionally, the core 12 is a magnetic structure.

[0068] In some of the embodiments of this application, Figure 4 As shown, the first driving unit 1 includes a magnetic conductive portion 14 , which connects the core 12 and the magnetic ring 13 and seals an end of the magnetic hole 101 away from the first vibration unit 3 .

[0069] It is understandable that the magnetic conductive part 14 is conducive to concentrating the magnetic field in the magnetic hole 101 and improving the driving efficiency of the first driving unit 1. The magnetic conductive part 14 seals the end of the magnetic hole 101 away from the first vibration unit 3 and can limit the coil 11.

[0070] In the embodiment of the present application, the connection part 22 may include an elastomeric material such as silicone rubber, thermoplastic polyurethane rubber, or may include metal and plastic. The harder the connection part 22 is, the more conducive it is to the transmission of vibration, and the slower the attenuation is, which is conducive to improving the driving effect on the first vibration unit 3.

[0071] In some of the embodiments of this application, Figure 5 As shown, the first vibration unit 3 includes a first dome 31 and a first diaphragm ring 32 . The first dome 31 is located on the inner side of the first diaphragm ring 32 and is connected to the first diaphragm ring 32 .

[0072] It can be understood that the first dome 31 can support the first diaphragm ring 32 , which is beneficial for the first driving unit 1 to drive the first dome 31 and the first diaphragm ring 32 to vibrate and produce sound.

[0073] Optionally, the material of the first diaphragm ring 32 may include silicone, polyetheretherketone, thermoplastic polyurethane rubber, graphene or metal. The first diaphragm ring 32 may be made of a composite material.

[0074] Optionally, the first dome 31 may include an aluminum layer and a foam layer, wherein the foam layer is sandwiched between two aluminum layers.

[0075] In the embodiment of the present application, the first driving unit 1 may be connected to the first spherical top 31. Exemplarily, the first driving unit 1 and the first spherical top 31 are bonded by glue.

[0076] In some embodiments of the present application, the second vibration unit 4 includes a second dome 41 and a second diaphragm ring 42 . The second dome 41 is located on the inner side of the second diaphragm ring 42 and connected to the second diaphragm ring 42 .

[0077] It can be understood that the second dome 41 can support the second diaphragm ring 42, which is beneficial for the second driving unit 2 to drive the second dome 41 and the second diaphragm ring 42 to vibrate and produce sound.

[0078] Optionally, the material of the second diaphragm ring 42 may include silicone, polyetheretherketone, thermoplastic polyurethane rubber, graphene or metal. The second diaphragm ring 42 may be made of a composite material.

[0079] Optionally, the second dome 41 may include an aluminum layer and a foam layer, wherein the foam layer is sandwiched between two aluminum layers.

[0080] In the embodiment of the present application, the second driving unit 2 may be connected to the second spherical top 41. Exemplarily, the second driving unit 2 and the second spherical top 41 are bonded by glue.

[0081] In some of the embodiments of this application, Figure 5 and Figure 6 As shown, the sound-emitting component also includes a shell 5, which has a first opening 501, a second opening 502 and a accommodating cavity 503. The first opening 501 and the second opening 502 are both connected to the accommodating cavity 503. The first drive unit 1 and the second drive unit 2 are located in the accommodating cavity 503. The first vibration unit 3 is located at the first opening 501 and connected to the shell 5. The second vibration unit 4 is located at the second opening 502 and connected to the shell 5.

[0082] It is understandable that the accommodating cavity 503 can accommodate the first drive unit 1 and the second drive unit 2, which is conducive to the support and protection of the two by the housing 5. The first opening 501 is conducive to the vibration generated by the first vibration unit 3 to be transmitted to the outside. The second opening 502 is conducive to the vibration generated by the second vibration unit 4 to be transmitted to the outside.

[0083] Optionally, the first vibration unit 3 and the housing 5 are bonded together by glue to keep them fixed at a relative position in the first opening 501 .

[0084] Optionally, the second vibration unit 4 and the housing 5 are bonded together by glue to keep them fixed at a relative position in the second opening 502 .

[0085] A second aspect of the present application provides an electronic device, which includes the sound-generating component as described in the above embodiment.

[0086] It can be understood that, due to the adoption of the sound-generating component of the above embodiment, the electronic device of the present application has the same technical effect as the above embodiment, which will not be described in detail here.

[0087] Optionally, the electronic device may be a smart phone, a tablet computer, a smart watch, or smart glasses.

[0088] In some of the embodiments of this application, Figure 7 and Figure 8 As shown, the electronic device has a first sound outlet 601 and a second sound outlet 602 , the first vibration unit 3 is closer to one end of the first sound outlet 601 than the second vibration unit 4 , and the second vibration unit 4 is closer to one end of the second sound outlet 602 than the first vibration unit 3 .

[0089] It can be understood that the first sound outlet 601 can allow the sound emitted by the first vibration unit 3 to be transmitted outside the electronic device. The second sound outlet 602 can allow the sound emitted by the second vibration unit 4 to be transmitted outside the electronic device. Since the propagation of sound is omnidirectional, the first vibration unit 3 can emit a sound that cancels out the second vibration unit 4. Avoiding such a setting is beneficial to the first vibration unit 3 and the second vibration unit 4 of the present application to produce mutually canceling sounds, and the sound emitted by the first vibration unit 3 that propagates along the axial direction of the second sound outlet 602 can be canceled by the second vibration unit 4, or the sound emitted by the second vibration unit 4 that propagates along the axial direction of the first sound outlet 601 can be canceled by the first vibration unit 3, thereby reducing sound leakage.

[0090] In some of the embodiments of this application, Figure 7 As shown, the first sound outlet 601 and the second sound outlet 602 are located on two opposite sides of the electronic device.

[0091] It can be understood that such a configuration can offset the sound emitted by the first vibration unit 3 through the second vibration unit 4, thereby reducing the sound leakage of the first vibration unit 3 on the opposite side of the electronic device. Correspondingly, such a configuration can offset the sound emitted by the second vibration unit 4 through the first vibration unit 3, thereby reducing the sound leakage of the second vibration unit 4 on the opposite side of the electronic device.

[0092] Optionally, the side where the first sound outlet hole 601 is located is the side where the panel of the electronic device is located, and the side where the second sound outlet hole 602 is located is the side where the back panel of the electronic device is located.

[0093] Optionally, the side where the first sound outlet hole 601 is located is the side where the back panel of the electronic device is located, and the side where the second sound outlet hole 602 is located is the side where the panel of the electronic device is located.

[0094] In some of the embodiments of this application, Figure 8 As shown, the first sound outlet hole 601 and the second sound outlet hole 602 are located on two adjacent sides of the electronic device.

[0095] It can be understood that such a configuration can offset the sound emitted by the first vibration unit 3 through the second vibration unit 4, thereby reducing the sound leakage of the first vibration unit 3 on the opposite side of the electronic device. Correspondingly, such a configuration can offset the sound emitted by the second vibration unit 4 through the first vibration unit 3, thereby reducing the sound leakage of the second vibration unit 4 on the opposite side of the electronic device.

[0096] Optionally, the side where the first sound outlet 601 is located is the side where a panel of the electronic device is located.

[0097] Optionally, the side where the first sound outlet 601 is located is the side where a panel of the electronic device is located.

[0098] In the present application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless otherwise clearly defined.

[0099] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0100] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A sound-generating component, characterized in that: The sound-generating component comprises a first driving unit (1), a second driving unit (2), a first vibration unit (3) and a second vibration unit (4), wherein: The first vibration unit (3) and the second vibration unit (4) are arranged opposite to each other; The first driving unit (1) and the second driving unit (2) are both located between the first vibration unit (3) and the second vibration unit (4); The first driving unit (1) is in transmission connection with the first vibration unit (3) so as to be able to drive the first vibration unit (3) to generate vibration; The second driving unit (2) is transmission-connected to the second vibration unit (4) so ​​as to drive the second vibration unit (4) to vibrate by generating a piezoelectric effect.

2. The sound generating assembly according to claim 1, characterized in that: The first drive unit (1) is closer to the first vibration unit (3) than the second drive unit (2), the second drive unit (2) is closer to the second vibration unit (4) than the first drive unit (1), and a gap (100) is formed between the second drive unit (2) and the first drive unit (1).

3. The sound generating assembly according to claim 1, characterized in that: The second driving unit (2) comprises a piezoelectric part (21) and a connecting part (22), wherein the connecting part (22) connects the piezoelectric part (21) and the second vibration unit (4).

4. The sound generating assembly according to claim 1, characterized in that: The first driving unit (1) comprises a magnetic hole (101) and a coil (11); the magnetic hole (101) is annular; the coil (11) is located inside the magnetic hole (101) and is capable of moving along the axial direction of the magnetic hole (101).

5. The sound generating assembly according to claim 4, characterized in that: The first driving unit (1) further comprises a core (12) and a magnetic ring (13); the core (12) is located inside the magnetic ring (13); and the core (12) and the magnetic ring (13) form the magnetic hole (101).

6. The sound generating assembly according to claim 5, characterized in that: The first driving unit (1) comprises a magnetic conductive part (14), wherein the magnetic conductive part (14) connects the core (12) and the magnetic ring (13) and seals an end of the magnetic hole (101) away from the first vibration unit (3).

7. The sound generating assembly according to claim 1, characterized in that: The first vibration unit (3) comprises a first spherical top (31) and a first diaphragm ring (32); the first spherical top (31) is located on the inner side of the first diaphragm ring (32) and is connected to the first diaphragm ring (32).

8. The sound generating assembly according to claim 1, characterized in that: The second vibration unit (4) comprises a second spherical top (41) and a second diaphragm ring (42); the second spherical top (41) is located inside the second diaphragm ring (42) and is connected to the second diaphragm ring (42).

9. The sound generating assembly according to claim 1, characterized in that: The sound-generating component further comprises a shell (5), the shell (5) having a first opening (501), a second opening (502) and a receiving cavity (503), the first opening (501) and the second opening (502) both being in communication with the receiving cavity (503), the first drive unit (1) and the second drive unit (2) being located in the receiving cavity (503), the first vibration unit (3) being located in the first opening (501) and connected to the shell (5), and the second vibration unit (4) being located in the second opening (502) and connected to the shell (5).

10. An electronic device, characterized in that: The electronic device comprises the sound generating assembly as claimed in any one of claims 1 to 9.

11. The electronic device according to claim 10, characterized in that: The electronic device comprises a first sound outlet (601) and a second sound outlet (602); the first vibration unit (3) is closer to one end of the first sound outlet (601) than the second vibration unit (4); and the second vibration unit (4) is closer to one end of the second sound outlet (602) than the first vibration unit (3).

12. The electronic device according to claim 11, characterized in that: The first sound outlet (601) and the second sound outlet (602) are located on two opposite sides of the electronic device. or, The first sound outlet hole (601) and the second sound outlet hole (602) are located on two adjacent sides of the electronic device.

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