Sound production assembly and electronic equipment

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a sound production assembly and electronic equipment, and the sound production assembly comprises a first actuating unit, a second actuating unit and a vibration unit. Wherein the first actuating unit is connected with the vibration unit so as to drive the vibration unit to generate vibration; the second actuating unit is connected with the vibration unit so as to drive the vibration unit to generate vibration. According to the sound production assembly, a structure which is convenient for designers to select the first actuating unit and the second actuating unit with different working frequency bands is provided, the working frequency band of the sound production assembly is widened, the sound production effect of the sound production assembly in the working frequency band is improved, and the working performance is further improved.

Description

Technical Field

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

[0002] The sound-generating component is a device that converts electrical energy into sound energy. It is applied to electronic devices to convert the audio information received by the electronic devices into sound, which is then received by the user.

[0003] The sound-generating component generally includes a vibration unit, which vibrates when a force is applied to the vibration unit. When the direction and magnitude of the force are both associated with the audio information, the vibration unit can emit a sound corresponding to the audio information.

[0004] In the related art, the working frequency range of the sound-generating component is relatively small. Outside the working frequency range, its working performance will be significantly reduced. Utility Model Content

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

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

[0007] The first aspect of the present application provides a sound-generating component, which includes a first actuating unit, a second actuating unit and a vibration unit. The first actuating unit is connected to the vibration unit to drive the vibration unit to vibrate; the second actuating unit is connected to the vibration unit to drive the vibration unit to vibrate.

[0008] Optionally, the first actuating unit and the second actuating unit are located on the same side of the vibration unit and are respectively connected to the vibration unit.

[0009] Optionally, the second actuating unit is located between the first actuating unit and the vibration unit, and is connected to the first actuating unit and the vibration unit respectively.

[0010] Optionally, the vibration unit includes a diaphragm and a dome, the diaphragm is connected to the dome, and the first actuating unit and the second actuating unit are both connected to the dome.

[0011] Optionally, the diaphragm includes a first sub-diaphragm and a second sub-diaphragm, and the dome includes a first sub-dome and a second sub-dome, the first sub-diaphragm, the second sub-diaphragm and the first sub-dome are all ring-shaped, the second sub-dome is located in the hollow part of the first sub-diaphragm and is connected to the first sub-diaphragm, the first sub-diaphragm is located in the hollow part of the first sub-dome and is connected to the first sub-dome, and the first sub-dome is located in the hollow part of the second sub-diaphragm and is connected to the second sub-diaphragm.

[0012] Optionally, the first actuating unit is connected to the first sub-spherical top, and the second actuating unit is connected to the second sub-spherical top.

[0013] Optionally, the first actuating unit comprises a coil and a magnetic part, wherein the coil is located in a magnetic field of the magnetic part and is movable relative to the magnetic part.

[0014] Optionally, the magnetic portion has an annular hole, and at least a portion of the coil is located in the annular hole and is movable along a depth direction of the annular hole.

[0015] Optionally, the magnetic part includes a core column and a magnetic ring, wherein the core column is located in a hollow portion of the magnetic ring and forms the annular hole together with the magnetic ring.

[0016] Optionally, the first actuating unit further comprises a first magnetic conductive portion, which connects an end of the core column away from the vibration unit and an end of the magnetic ring away from the vibration unit, and seals an opening of the annular hole away from the vibration unit.

[0017] Optionally, the first actuating unit further includes a second magnetic conductive portion, and the second magnetic conductive portion is provided at one end of the core column close to the vibration unit and one end of the magnetic ring close to the vibration unit.

[0018] Optionally, the second actuating unit includes a piezoelectric portion, and the piezoelectric portion is connected to the vibration unit.

[0019] Optionally, the piezoelectric portion includes a piezoelectric layer and at least two conductive layers, two of the at least two conductive layers are stacked, and the piezoelectric layer is located between the two conductive layers.

[0020] Optionally, the second actuating unit further includes a connecting portion, wherein the connecting portion connects the piezoelectric portion and the vibration unit.

[0021] Optionally, a frequency band in which the first actuating unit drives the vibration unit to vibrate is different from a frequency band in which the second actuating unit drives the vibration unit to vibrate.

[0022] A second aspect of the present application provides an electronic device, which includes a sound-generating component as described in the above technical solution.

[0023] The beneficial effects of the technical solution provided by the present application include at least: the first actuating unit and the second actuating unit can respectively drive the vibration unit to vibrate and emit sound. The first actuating unit and the second actuating unit are conducive to designers selecting the working frequency band according to the actual needs, so that the two can complement each other, so as to broaden the working frequency band of the sound-emitting component of the present application and improve the sound effect of the sound-emitting component of the present application in the working frequency band, thereby improving the working performance.

[0024] In summary, the sound component of the present application provides a structure that facilitates designers to select the first actuating unit and the second actuating unit of different working frequency bands, which is beneficial to broadening the working frequency band of the sound component and improving the sound effect of the sound component of the present application in the working frequency band, thereby improving the working performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 A full cross-sectional schematic diagram of a sound-generating component provided in an embodiment of the present application;

[0027] Figure 2 A full cross-sectional schematic diagram of the relevant structure of a marking vibration unit of a sound-emitting component provided in an embodiment of the present application;

[0028] Figure 3 A full cross-sectional schematic diagram of a structure related to a first actuating unit of a sound-emitting component provided in an embodiment of the present application;

[0029] Figure 4 A full cross-sectional schematic diagram of a structure related to a second actuating unit of a sound-emitting component provided in an embodiment of the present application;

[0030] Figure 5 A full cross-sectional schematic diagram of a piezoelectric portion provided in an embodiment of the present application.

[0031] The reference numerals in the figures represent respectively:

[0032] 1. first actuating unit; 11. coil; 12. magnetic part; 1201. annular hole; 121. core column; 122. magnetic ring; 13. first magnetic conductive part; 14. second magnetic conductive part;

[0033] 2. second actuating unit; 21. piezoelectric part; 211. piezoelectric layer; 212. conductive layer; 22. connecting part;

[0034] 3. Vibration unit; 31. Diaphragm; 311. First sub-diaphragm; 312. Second sub-diaphragm; 32. Dome; 321. First sub-dome; 322. Second sub-dome.

[0035] 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

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] In the related art, different types of sound-generating components have different operating frequency bands. Specifically, for a sound-generating component that generates vibrations through a changing magnetic field, its frequency response curve begins to decay rapidly at 8KHz, that is, after 8KHz, the working performance of this type of sound-generating component is not as good as the working performance in other frequency bands. For a component that generates vibrations through the characteristics of piezoelectric materials, its frequency response curve begins to increase after 4KHz, that is, after 4KHz, the working performance of this type of sound-generating component is significantly improved. Although the operating frequency band of this type of sound-generating component can be broadened and the working performance can be improved by improving various types of sound-generating components, this approach requires more R&D time and cost, and the effect of the improvement is difficult to predict.

[0041] 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 1 As shown, the sound generating assembly includes a first actuating unit 1, a second actuating unit 2 and a vibration unit 3. The first actuating unit 1 is connected to the vibration unit 3 to drive the vibration unit 3 to vibrate; the second actuating unit 2 is connected to the vibration unit 3 to drive the vibration unit 3 to vibrate.

[0042] It can be understood that the first actuation unit 1 and the second actuation unit 2 can respectively drive the vibration unit 3 to vibrate and emit sound. The first actuation unit 1 and the second actuation unit 2 are conducive to designers selecting the working frequency band according to the actual needs, so that the two can complement each other, so as to broaden the working frequency band of the sound-emitting component of the present application and improve the sound effect of the sound-emitting component of the present application in the working frequency band, thereby improving the working performance.

[0043] In the embodiment of the present application, the working frequency band of the first actuating unit 1 may be the same as the working frequency band of the second actuating unit 2, so as to improve the sound effect of the sound-generating component of the present application in the working frequency band.

[0044] For example, the operating frequency range of the first actuating unit 1 may be 20 to 4000 Hz, and the operating frequency range of the second actuating unit 2 may be 4000 to 20000 Hz.

[0045] In the embodiment of the present application, the first actuating unit 1 can receive an electrical signal from other devices or components to drive the vibration unit 3 to vibrate. The vibration direction of the vibration unit 3 can be the same as the arrangement direction of the vibration unit 3 and the first actuating unit 1. The first actuating unit 1 can drive the vibration unit 3 to vibrate by generating a changing magnetic field, can drive the vibration unit 3 to vibrate by generating an electrostatic force, and can drive the vibration unit 3 to vibrate by generating a piezoelectric effect.

[0046] In the embodiment of the present application, the second actuating unit 2 can receive an electrical signal from other devices or components to drive the vibration unit 3 to vibrate. The vibration direction of the vibration unit 3 can be the same as the arrangement direction of the vibration unit 3 and the first actuating unit 1. The second actuating unit 2 can drive the vibration unit 3 to vibrate by generating a changing magnetic field, can drive the vibration unit 3 to vibrate by generating an electrostatic force, or can drive the vibration unit 3 to vibrate by generating a piezoelectric effect.

[0047] In the embodiment of the present application, the sounds generated by the electrical signals received by the first actuating unit 1 and the second actuating unit 2 correspond to different frequency bands, so that the sound-emitting component of the present application can drive the vibration unit 3 to vibrate in their respective working frequency bands through the first actuating unit 1 and the second actuating unit 2, thereby broadening its working frequency band to improve working performance.

[0048] In the embodiment of the present application, the first actuating unit 1 may be located inside the second actuating unit 2 and connected to the vibration unit 3 , or may be located outside the second actuating unit 2 and connected to the vibration unit 3 .

[0049] In the embodiment of the present application, the second actuating unit 2 may be located inside the first actuating unit 1 and connected to the vibration unit 3 , or may be located outside the first actuating unit 1 and connected to the vibration unit 3 .

[0050] In the embodiment of the present application, the first actuating unit 1 and the second actuating unit 2 may be connected to each other or may be spaced apart from each other.

[0051] In the embodiment of the present application, the sound-generating component may further include a bracket, which is connected to the vibration unit 3 to support the vibration unit 3. The bracket may be bonded to the vibration unit 3 by glue.

[0052] In summary, the sound-generating component of the present application provides a structure of the first actuating unit 1 and the second actuating unit 2 that facilitates designers to select the working frequency band, which is beneficial for broadening the working frequency band of the sound-generating component and thus improving the working performance.

[0053] In some embodiments of the present application, when the first actuating unit 1 and the second actuating unit 2 drive the vibration unit 3 to vibrate, if there is an obstruction in the propagation direction of the vibration, interference with the vibration will be formed, resulting in a decrease in the sound effect. Figure 1 As shown, the first actuating unit 1 and the second actuating unit 2 are located on the same side of the vibration unit 3 and are connected to the vibration unit 3 respectively.

[0054] It can be understood that the first actuating unit 1 and the second actuating unit 2 are located on the same side of the vibration unit 3, which is beneficial for the first actuating unit 1 to drive the vibration unit 3 to vibrate without being blocked by the second actuating unit 2, thereby improving the sound effect and improving the working performance. Correspondingly, when the second actuating unit 2 drives the vibration unit 3 to vibrate, it will not be blocked by the first actuating unit 1, thereby improving the sound effect and improving the working performance.

[0055] Optionally, the first actuating unit 1 and the second actuating unit 2 may both be located on the upper side or the lower side of the vibration unit 3 .

[0056] In some embodiments of the present application, since the first actuating unit 1 and the second actuating unit 2 have a certain volume, the volume of the sound-generating component of the present application is relatively large. Figure 1 As shown, the second actuating unit 2 is located between the first actuating unit 1 and the vibration unit 3, and is connected to the first actuating unit 1 and the vibration unit 3 respectively.

[0057] It is understandable that the first actuating unit 1 can support the second actuating unit 2, which is beneficial for the second actuating unit 2 to drive the vibration unit 3 to vibrate. At the same time, the sound-generating component of the present application no longer needs to design an additional arrangement space for the second actuating unit 2, which can improve the compactness of the sound-generating component of the present application and reduce its volume.

[0058] In the embodiment of the present application, the volume of the first actuating unit 1 is larger than that of the second actuating unit 2 , so that the second actuating unit 2 can be supported.

[0059] In some of the embodiments of this application, Figure 2 As shown, the vibration unit 3 includes a diaphragm 31 and a dome 32 , the diaphragm 31 is connected to the dome 32 , and the first actuating unit 1 and the second actuating unit 2 are both connected to the dome 32 .

[0060] It can be understood that the dome 32 and the diaphragm 31 can both be driven by the first actuating unit 1 and the second actuating unit 2 to vibrate, and the dome 32 mainly supports the diaphragm 31, which is conducive to the diaphragm 31 vibrating and emitting sound.

[0061] In the embodiment of the present application, the diaphragm 31 and the dome 32 may be bonded together by glue.

[0062] Optionally, the material of the diaphragm 31 may be silicone, polyetheretherketone or thermoplastic polyurethane rubber, or may be metal such as aluminum, titanium or magnesium, or may be a composite material such as a composite material containing graphene.

[0063] Alternatively, the dome 32 may include two aluminum layers and a foam layer, wherein the foam layer is sandwiched between the two aluminum layers.

[0064] In some of the embodiments of this application, Figure 2 As shown, the diaphragm 31 includes a first sub-diaphragm 311 and a second sub-diaphragm 312, and the dome 32 includes a first sub-dome 321 and a second sub-dome 322. The first sub-diaphragm 311, the second sub-diaphragm 312 and the first sub-dome 321 are all ring-shaped. The second sub-dome 322 is located in the hollow part of the first sub-diaphragm 311 and is connected to the first sub-diaphragm 311. The first sub-diaphragm 311 is located in the hollow part of the first sub-dome 321 and is connected to the first sub-dome 321. The first sub-dome 321 is located in the hollow part of the second sub-diaphragm 312 and is connected to the second sub-diaphragm 312.

[0065] It can be understood that the first sub-spherical top 321 and the second sub-spherical top 322 can support the first sub-diaphragm 311, which is conducive to the vibration of the first sub-diaphragm 311. The second sub-spherical top 322 can support the second sub-diaphragm 312, which is conducive to the vibration of the second sub-diaphragm 312. Such a configuration is conducive to the vibration unit 3 being driven by the first actuating unit 1 and the second actuating unit 2 at the same time to generate vibration and emit sound.

[0066] Optionally, the first sub-diaphragm 311 and the second sub-spherical top 322 may be bonded together by glue.

[0067] Optionally, the first sub-diaphragm 311 and the first sub-spherical top 321 may be bonded together by glue.

[0068] Optionally, the second sub-diaphragm 312 and the first sub-spherical top 321 may be bonded together by glue.

[0069] In some embodiments of the present application, the structural strength of the diaphragm 31 is generally low. If it is directly in contact with other structures, its service life will be shortened, which will cause the vibration unit 3 to be easily damaged by sound. Figure 2 As shown, the first actuating unit 1 is connected to the first sub-spherical top 321 , and the second actuating unit 2 is connected to the second sub-spherical top 322 .

[0070] It can be understood that the first actuating unit 1 is connected to the first sub-ball top 321, which can indirectly drive the first sub-diaphragm 311 and the second sub-diaphragm 312 to vibrate and emit sound, and the second actuating unit 2 is connected to the second sub-ball top 322, which can indirectly drive the first sub-diaphragm 311 and the second sub-diaphragm 312 to vibrate and emit sound. Such an arrangement can extend the service life of the diaphragm 31 by indirectly driving the diaphragm 31 to vibrate and emit sound.

[0071] In some of the embodiments of this application, Figure 3 As shown, the first actuating unit 1 includes a coil 11 and a magnetic part 12. The coil 11 is located in the magnetic field of the magnetic part 12 and can move relative to the magnetic part 12. In this way, the first actuating unit 1 can drive the vibration unit 3 to vibrate and emit sound.

[0072] Specifically, when the coil 11 allows alternating current to pass through, it will generate a constantly changing magnetic field. When the magnetic field direction of the magnetic field is the same as the magnetic field direction of the magnetic part 12, the coil 11 will be repelled by the magnetic part 12; when the magnetic field direction of the magnetic field is opposite to the magnetic field direction of the magnetic part 12, the coil 11 will be attracted by the magnetic part 12. This process causes the coil 11 to constantly approach and move away from the magnetic part 12, thereby driving the vibration unit 3 to vibrate.

[0073] In the embodiment of the present application, the coil 11 can be wound by a winding process. When in use, the coil 11 can be welded to a circuit board and powered by the circuit board.

[0074] In the embodiment of the present application, the working frequency range of the first actuating unit 1 is 20 to 6000 Hz, 20 to 8000 Hz, 100 to 6000 Hz or 100 to 8000 Hz.

[0075] Optionally, the vibration unit 3 may be connected to the coil 11 and driven by the coil 11. The vibration unit 3 may also be connected to the magnetic part 12 and driven by the magnetic part 12.

[0076] In some of the embodiments of this application, Figure 3 As shown, the magnetic part 12 has an annular hole 1201 , and at least a portion of the coil 11 is located in the annular hole 1201 and can move along the depth direction of the annular hole 1201 .

[0077] It is understandable that the annular hole 1201 provides a moving space for the coil 11. The coil 11 is attracted and repelled by the magnetic part 12 inside the coil 11, and can drive the vibration unit 3 to vibrate.

[0078] In some of the embodiments of this application, Figure 3 As shown, the magnetic part 12 includes a core column 121 and a magnetic ring 122 . The core column 121 is located in the hollow part of the magnetic ring 122 and forms an annular hole 1201 with the magnetic ring 122 .

[0079] It can be understood that the core column 121 and the magnetic ring 122 can gather the magnetic field therebetween, which is beneficial for the magnetic part 12 to attract and repel the coil 11, thereby driving the vibration unit 3 to vibrate.

[0080] In the embodiment of the present application, the annular hole 1201 may be in the shape of a circular ring.

[0081] In some of the embodiments of this application, Figure 3 As shown, the first actuating unit 1 further comprises a first magnetic conductive portion 13 , which connects an end of the core column 121 away from the vibration unit 3 and an end of the magnetic ring 122 away from the vibration unit 3 , and seals an opening of the annular hole 1201 away from the vibration unit 3 .

[0082] It can be understood that the first magnetic conductive portion 13 has a magnetic conductive effect on the magnetic field of the magnetic portion 12, which is conducive to increasing the degree of aggregation of magnetic lines of force between the core column 121 and the magnetic ring 122, thereby attracting and repelling the coil 11, and driving the vibration unit 3 to vibrate. In addition, the first magnetic conductive portion 13 seals the opening of the annular hole 1201, which can limit the coil 11 and prevent the coil 11 from extending in a direction away from the vibration unit 3 through the opening of the annular hole 1201.

[0083] In some of the embodiments of this application, Figure 3 As shown, the first actuating unit 1 further includes a second magnetic conductive portion 14 , and the second magnetic conductive portion 14 is disposed on one end of the core column 121 close to the vibration unit 3 and one end of the magnetic ring 122 close to the vibration unit 3 .

[0084] It is understandable that the second magnetic conductive part 14 has a magnetic conductive effect on the magnetic field of the magnetic part 12, which is beneficial to increase the degree of concentration of magnetic lines of force between the core column 121 and the magnetic ring 122, thereby attracting and repelling the coil 11, and driving the vibration unit 3 to vibrate.

[0085] In some of the embodiments of this application, Figure 4 As shown, the second actuating unit 2 includes a piezoelectric portion 21 , and the piezoelectric portion 21 is connected to the vibration unit 3 .

[0086] It is understandable that when alternating current is applied, the piezoelectric portion 21 will produce an inverse piezoelectric effect, and a mechanical force with a continuously changing direction will be generated inside the piezoelectric portion 21, thereby driving the vibration unit 3 to vibrate and emit sound.

[0087] In the embodiment of the present application, the material of the piezoelectric part 21 may include lead zirconate titanate. The proportion of lead zirconate titanate in the piezoelectric part 21 may vary depending on actual needs.

[0088] In the embodiment of the present application, the material of the piezoelectric part 21 may include a piezoelectric polymer material, such as polyvinylidene fluoride or a vinylidene fluoride trifluoroethylene copolymer.

[0089] In some of the embodiments of this application, Figure 5 As shown, the piezoelectric portion 21 includes a piezoelectric layer 211 and at least two conductive layers 212 . Two conductive layers 212 of the at least two conductive layers 212 are stacked, and the piezoelectric layer 211 is located between the two conductive layers 212 .

[0090] It is understandable that the conductive layer 212 can allow other components to establish electrical connections with the piezoelectric layer 211, so that the piezoelectric layer 211 produces an inverse piezoelectric effect, thereby driving the vibration unit 3 to vibrate and emit sound.

[0091] In the embodiment of the present application, the number of the conductive layers 212 is two, and the piezoelectric layer 211 is located between the two conductive layers 212 .

[0092] Optionally, the piezoelectric layer 211 may be a piezoelectric film or a piezoelectric ceramic.

[0093] In the embodiments of the present application, Figure 5As shown, the number of the conductive layers 212 may be 3, and the number of the piezoelectric layers 211 may be 2. Two piezoelectric layers 211 are located between two conductive layers 212 , and the third conductive layer 212 is located between the two piezoelectric layers 211 , and serves to separate the two piezoelectric layers 211 .

[0094] Optionally, the number of the conductive layers 212 may be 3, 4, or 5, or any other number.

[0095] Optionally, the number of the piezoelectric layers 211 may be 1, 2, or 3, or any other number.

[0096] In some of the embodiments of this application, Figure 4 As shown, the second actuating unit 2 further includes a connecting portion 22 , and the connecting portion 22 connects the piezoelectric portion 21 and the vibration unit 3 .

[0097] It can be understood that the connection part 22 is connected to the piezoelectric part 21 and the vibration unit 3, which is conducive to the sound-generating component of the present application to transmit the vibration generated by the piezoelectric part 21 to the vibration unit 3, thereby driving the vibration unit 3 to vibrate and emit sound.

[0098] Optionally, the material of the connecting portion 22 may be an elastic material, such as silicone or thermoplastic polyurethane elastomer. The material of the connecting portion 22 may be a metal or plastic with a hardness greater than that of the conductive layer 212 .

[0099] Optionally, the number of the connecting parts 22 may be 1, 2, 3, or any other number.

[0100] In some embodiments of the present application, the frequency band in which the first actuating unit 1 drives the vibration unit 3 to vibrate is different from the frequency band in which the second actuating unit 2 drives the vibration unit 3 to vibrate.

[0101] It is understandable that such an arrangement enables the first actuating unit 1 and the second actuating unit 2 to select a frequency band that matches them, so as to improve the sound effect of the sound-generating component of the present application and enhance the working performance.

[0102] In the embodiment of the present application, the frequency bands of the two are different. There may be no overlapping part between the frequency bands of the two, or there may be overlapping part between the frequency bands of the two, as long as the frequency bands of the two are not overlapping.

[0103] A second aspect of the present application provides an electronic device, which includes the sound-generating component as described in the above embodiment.

[0104] 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.

[0105] Optionally, the electronic device may be a product with a sound-generating function, such as a mobile phone, a tablet computer, a smart watch or smart glasses.

[0106] 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.

[0107] 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.

[0108] 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 actuating unit (1), a second actuating unit (2) and a vibration unit (3), wherein: The first actuating unit (1) is connected to the vibration unit (3) so as to be able to drive the vibration unit (3) to generate vibration; The second actuating unit (2) is connected to the vibration unit (3) so as to be able to drive the vibration unit (3) to generate vibration.

2. The sound generating assembly according to claim 1, characterized in that: The first actuating unit (1) and the second actuating unit (2) are located on the same side of the vibration unit (3) and are respectively connected to the vibration unit (3).

3. The sound generating assembly according to claim 2, characterized in that: The second actuating unit (2) is located between the first actuating unit (1) and the vibration unit (3), and is connected to the first actuating unit (1) and the vibration unit (3) respectively.

4. The sound generating assembly according to claim 1, characterized in that: The vibration unit (3) comprises a diaphragm (31) and a spherical top (32); the diaphragm (31) is connected to the spherical top (32); and the first actuating unit (1) and the second actuating unit (2) are both connected to the spherical top (32).

5. The sound generating assembly according to claim 4, characterized in that: The diaphragm (31) comprises a first sub-diaphragm (311) and a second sub-diaphragm (312); the spherical top (32) comprises a first sub-spherical top (321) and a second sub-spherical top (322); the first sub-diaphragm (311), the second sub-diaphragm (312) and the first sub-spherical top (321) are all ring-shaped; the second sub-spherical top (322) is located in the hollow part of the first sub-diaphragm (311) and is connected to the first sub-diaphragm (311); the first sub-diaphragm (311) is located in the hollow part of the first sub-spherical top (321) and is connected to the first sub-spherical top (321); the first sub-spherical top (321) is located in the hollow part of the second sub-diaphragm (312) and is connected to the second sub-diaphragm (312).

6. The sound generating assembly according to claim 5, characterized in that: The first actuating unit (1) is connected to the first sub-spherical top (321), and the second actuating unit (2) is connected to the second sub-spherical top (322).

7. The sound generating assembly according to claim 1, characterized in that: The first actuating unit (1) comprises a coil (11) and a magnetic part (12); the coil (11) is located in the magnetic field of the magnetic part (12) and is movable relative to the magnetic part (12).

8. The sound generating assembly according to claim 7, characterized in that: The magnetic part (12) has an annular hole (1201), and at least a part of the coil (11) is located in the annular hole (1201) and can move along the depth direction of the annular hole (1201).

9. The sound generating assembly according to claim 8, characterized in that: The magnetic part (12) comprises a core column (121) and a magnetic ring (122); the core column (121) is located in the hollow part of the magnetic ring (122) and forms the annular hole (1201) together with the magnetic ring (122).

10. The sound generating assembly according to claim 9, characterized in that: The first actuating unit (1) further comprises a first magnetic conductive portion (13), the first magnetic conductive portion (13) connecting an end of the core column (121) away from the vibration unit (3) and an end of the magnetic ring (122) away from the vibration unit (3), and sealing an opening of the annular hole (1201) away from the vibration unit (3).

11. The sound generating assembly according to claim 9, characterized in that: The first actuating unit (1) further comprises a second magnetic conductive portion (14), and the second magnetic conductive portion (14) is provided at one end of the core column (121) close to the vibration unit (3) and at one end of the magnetic ring (122) close to the vibration unit (3).

12. The sound generating assembly according to claim 1, characterized in that: The second actuating unit (2) comprises a piezoelectric part (21), and the piezoelectric part (21) is connected to the vibration unit (3).

13. The sound generating assembly according to claim 12, characterized in that: The piezoelectric part (21) comprises a piezoelectric layer (211) and at least two conductive layers (212), two conductive layers (212) of the at least two conductive layers (212) are stacked, and the piezoelectric layer (211) is located between the two conductive layers (212).

14. The sound generating assembly according to claim 12, characterized in that: The second actuating unit (2) further comprises a connecting portion (22), wherein the connecting portion (22) connects the piezoelectric portion (21) and the vibration unit (3).

15. The sound generating assembly according to claim 1, characterized in that: The frequency band in which the first actuating unit (1) drives the vibration unit (3) to generate vibrations is different from the frequency band in which the second actuating unit (2) drives the vibration unit (3) to generate vibrations.

16. An electronic device, characterized in that: The electronic device comprises the sound generating assembly as claimed in any one of claims 1 to 15.

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