Loudspeaker and electronic equipment

Abstract

The invention belongs to the technical field of loudspeakers, and discloses a loudspeaker and electronic equipment, the loudspeaker comprises a support, a diaphragm assembly and a vibration assembly, and the support forms a cavity penetrating through the upper surface and the lower surface; the vibration assembly is arranged on the side, facing the vibration assembly, of the vibrating diaphragm assembly, the vibration assembly can drive the vibrating diaphragm assembly to vibrate in the third direction, the vibration assembly comprises a plurality of sound production structures, and the sound production structures are arranged on the support on the same layer. The loudspeaker and the electronic equipment provided by the invention have relatively high sensitivity and relatively good acoustic performance.

Description

[0001] This application is a divisional application. The application number of the original application is 202411133459.9, the application date is August 19, 2024, and the name of the invention is “Speaker and electronic device”. Technical Field

[0002] The present invention relates to the technical field of loudspeakers, and in particular to a loudspeaker and an electronic device. Background Art

[0003] As an important electroacoustic device, speakers are widely used in electronic devices. Speakers can be divided into dynamic speakers, moving iron speakers and piezoelectric speakers according to their technical types. Compared with dynamic speakers, piezoelectric speakers have the advantages of being small, thin, light and free of magnetic field interference.

[0004] In the prior art, a piezoelectric speaker includes a piezoelectric sheet and a diaphragm stacked with the piezoelectric sheet. The piezoelectric sheet vibrates under the drive of a driving voltage, driving the diaphragm to vibrate, so as to realize the sound of the speaker. One end of the piezoelectric sheet is fixed to form a cantilever beam structure, and the other end of the piezoelectric sheet will deform upward or downward. In addition, there is usually only one piezoelectric sheet, resulting in a small area of ​​the piezoelectric sheet and low sensitivity. Under the condition of limited size, the piezoelectric sheet is short, and the low-frequency performance of the speaker is poor, which affects the acoustic performance of the speaker.

[0005] Therefore, a loudspeaker with higher sensitivity is urgently needed. Summary of the invention

[0006] An object of the present invention is to provide a loudspeaker with higher sensitivity and better acoustic performance.

[0007] As conceived above, the technical solution adopted by the present invention is:

[0008] Speakers, including:

[0009] a bracket, the bracket forming a cavity extending through the upper surface and the lower surface;

[0010] A diaphragm assembly, the periphery of which is fixedly connected to the bracket;

[0011] A vibration component, the vibration component is arranged on a side of the diaphragm component facing the bracket, and the vibration component can drive the diaphragm component to vibrate along a third direction, and the vibration component includes a plurality of sound-generating structures, and the plurality of sound-generating structures are arranged on the bracket in the same layer;

[0012] The plurality of sound-emitting structures include a first sound-emitting structure and a second sound-emitting structure, the first sound-emitting structure includes a first free end and a first fixed end opposite to each other in the first direction, the first fixed end is connected to one end of the bracket, the first free end is arranged on a side of the diaphragm assembly facing the cavity, and is fixedly connected to the diaphragm assembly, the second sound-emitting structure includes a second free end and a second fixed end opposite to each other in the first direction, the second fixed end is connected to the other end of the bracket, the second free end is arranged on a side of the diaphragm assembly facing the cavity, and is fixedly connected to the diaphragm assembly, and the first direction is perpendicular to the third direction;

[0013] The vibration components are provided with two groups, the sound-emitting structure of one group of the vibration components is connected to the top surface of the bracket, and a part of the sound-emitting structure of one group of the vibration components is arranged above the cavity; the sound-emitting structure of the other group of the vibration components is connected to the bottom surface of the bracket, and a part of the sound-emitting structure of one group of the vibration components is arranged below the cavity.

[0014] Optionally, there is a gap between the first sound-emitting structure and the second sound-emitting structure of the same group of vibration components; the orthographic projections of the first sound-emitting structure and the second sound-emitting structure of the same group of vibration components in the second direction have an overlapping part, and any two of the first direction, the second direction and the third direction are perpendicular to each other.

[0015] Optionally, the first free ends and the second free ends are alternately arranged in the second direction;

[0016] Alternatively, the first sound-emitting structure and the second sound-emitting structure of the same group of the vibration components are provided in plurality, and at least two of the second free ends are provided between two adjacent first free ends in the second direction;

[0017] Alternatively, the first sound-emitting structure and the second sound-emitting structure of the same group of the vibration components are provided in plurality, and at least two first free ends are provided between two adjacent second free ends in the second direction.

[0018] Optionally, the vibration direction of the first sound-emitting structure in the third direction of the same group of vibration components is the same as the vibration direction of the second sound-emitting structure in the third direction.

[0019] Optionally, the first free end and the second free end are both provided with a transmission member, the transmission member is arranged on the side of the first sound-emitting structure and the second sound-emitting structure away from the cavity, and the side of the transmission member away from the first free end and the second free end is connected to the diaphragm assembly.

[0020] Optionally, the diaphragm assembly is also provided with two groups, the two groups of diaphragm assemblies correspond one to one to the two groups of vibration assemblies, and the two groups of diaphragm assemblies are arranged on a side of the respective corresponding vibration assemblies away from the bracket.

[0021] Optionally, the orthographic projections of the sound-generating structures of the two groups of vibration components on the plane where the bracket is located completely overlap.

[0022] Optionally, the orthographic projections of the sound-generating structures of the two groups of vibration components on the plane where the bracket is located do not completely overlap.

[0023] Optionally, the first sound-emitting structures of two groups of vibration components have different lengths in the first direction, and the second sound-emitting structures of two groups of vibration components have different lengths in the first direction.

[0024] Optionally, the first sound-emitting structures of the two groups of vibration components have opposite vibration directions in a third direction, and the second sound-emitting structures of the two groups of vibration components have opposite vibration directions in a third direction, and the third direction is perpendicular to the first direction.

[0025] Optionally, the cross-sectional shapes of the plurality of sound-emitting structures are the same; and / or, the cross-sectional shape of the sound-emitting structure is rectangular, trapezoidal or triangular.

[0026] An object of the present invention is to provide an electronic device with higher acoustic performance.

[0027] As conceived above, the technical solution adopted by the present invention is:

[0028] An electronic device comprises the speaker as described above.

[0029] Beneficial effects of the present invention:

[0030] The speaker and electronic device provided by the present invention have a bracket forming a cavity that runs through the upper surface and the lower surface, and the vibration component includes a plurality of sound-emitting structures arranged on the bracket in the same layer, and the plurality of sound-emitting structures include a first sound-emitting structure and a second sound-emitting structure, a portion of the first sound-emitting structure is connected to one end of the bracket in a first direction, and a portion of the second sound-emitting structure is connected to the other end of the bracket in the first direction, and another portion of the first sound-emitting structure and the second sound-emitting structure are both arranged opposite to the cavity, forming a bilateral structure, so that the area opposite to the cavity of the sound-emitting structure is larger, thereby increasing the effective area of ​​the vibration component and the diaphragm component of the speaker, thereby improving the sensitivity of the speaker, and thereby improving the acoustic performance of the speaker and the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0032] Figure 1 The structure of the speaker provided in the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 2 The structure of the speaker provided in the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 3 is an exploded schematic diagram of a speaker provided in Embodiment 1 of the present invention;

[0035] Figure 4 is a schematic diagram of a bracket and a vibration assembly provided in Embodiment 1 of the present invention;

[0036] Figure 5 is a top view of the bracket and the vibration assembly provided in the first embodiment of the present invention;

[0037] Figure 6 is a cross-sectional view of a loudspeaker provided in Embodiment 1 of the present invention;

[0038] Figure 7 is a schematic diagram of the structure of a speaker provided in Embodiment 2 of the present invention;

[0039] Figure 8 is a schematic diagram of a bracket and a vibration assembly provided in Embodiment 2 of the present invention;

[0040] Fig. 9 is a top view of a bracket and a vibration assembly provided in Embodiment 2 of the present invention;

[0041] Fig.10 It is a cross-sectional view of the loudspeaker provided in the second embodiment of the present invention.

[0042] In the figure:

[0043] 100, bracket; 110, upper surface; 120, lower surface; 130, cavity;

[0044] 200, vibration component; 210, first sound-generating structure; 211, first free end; 212, first fixed end; 220, second sound-generating structure; 221, second free end; 222, second fixed end; 230, transmission member;

[0045] 300, diaphragm assembly; 310, diaphragm; 320, dome;

[0046] 400, upper shell; 500, upper fixing frame; 600, lower fixing frame; 700, lower shell; 810, front sound hole; 820, rear sound hole;

[0047] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0048] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0052] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0053] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or there may be a central element.

[0054] Embodiment 1

[0055] This embodiment provides a loudspeaker with higher sensitivity and better acoustic performance.

[0056] To facilitate the following description, X, Y, and Z coordinate systems may be established in some drawings. Figure 5 The plane where the loudspeaker is located can be an XY plane. Figure 5 Taking the speaker shown in the figure as a rectangle as an example, the X-axis is the first direction, which can be the length direction of the speaker, the Y-axis is the second direction, which can be the width direction of the speaker, and the Z-axis is the third direction, which is perpendicular to or approximately perpendicular to the speaker within the manufacturing tolerance range. For example, the Z-axis is the thickness direction of the speaker. It can be seen that any two of the first direction, the second direction and the third direction in this embodiment are perpendicular to each other. It can be understood that the width of the speaker is smaller than the length of the speaker.

[0057] like Figures 1 to 6 As shown, the speaker includes a bracket 100, a diaphragm assembly 300 and a vibration assembly 200. The bracket 100 has an upper surface 110 and a lower surface 120 that are opposite to each other in the third direction Z. The bracket 100 forms a cavity 130 that penetrates the upper surface 110 and the lower surface 120. The periphery of the diaphragm assembly 300 is fixedly connected to the bracket 100. The vibration assembly 200 is arranged on the side of the diaphragm assembly 300 facing the bracket 100. When the vibration assembly 200 vibrates, it can drive the diaphragm assembly 300 to vibrate, thereby emitting sound.

[0058] It should be noted that the speaker also includes a circuit board (not shown in the figure), and the vibration component 200 is electrically connected to the circuit board, and the circuit board is used to send an acoustic and electrical signal to the vibration component 200 to stimulate the vibration component 200 to vibrate and make sound. The vibration component 200 can form a vibration plane and vibrate and make sound according to the received acoustic and electrical signal to realize the sound-making function of the speaker.

[0059] like Figure 4As shown, each group of vibration components 200 includes multiple sound-emitting structures (not shown). In some optional embodiments, multiple sound-emitting structures are arranged on the same layer on the bracket 100, that is, the multiple sound-emitting structures of each group of vibration components 200 are located in the same plane to ensure that the distances between the multiple sound-emitting structures and the diaphragm assembly 300 of the speaker are the same. The multiple sound-emitting structures are electrically connected to the circuit board, and the circuit board is used to send acoustic and electrical signals to each sound-emitting structure to stimulate each sound-emitting structure to vibrate and produce sound. Optionally, the number of sound-emitting structures can be 3, 4, 5, 6, etc., which is not limited in this embodiment. Preferably, the number of sound-emitting structures is an even number.

[0060] By way of example, the sound-generating structure may include a driver (not shown in the figure) and a cantilever beam (not shown in the figure), one end of the cantilever beam is connected to the bracket 100, the other end of the cantilever beam extends to be arranged opposite to the cavity 130 in the third direction Z, and the other end of the cantilever beam is a free end. The driver is connected to the cantilever beam. The driver may be formed above and / or below the cantilever beam. Furthermore, the area of ​​the driver may be equal to the area of ​​the cantilever beam, or may be smaller than the area of ​​the cantilever beam. The driver may drive the cantilever beam to vibrate along the third direction Z. By way of example, the driver may be any one of a piezoelectric driver, an electrostatic driver, an electromagnetic driver, and a thermoelectric driver.

[0061] In some optional embodiments, the bracket 100 may include a circuit board (not shown in the figure), and the circuit board forms a cavity 130 running through it. A portion of the sound-emitting structure may be directly electrically connected to the circuit board to achieve the transmission of acoustic and electrical signals. In some other optional embodiments, the bracket 100 may not include a circuit board, but only provide a supporting function. In some other optional embodiments, the bracket 100 may include a supporting structure and a circuit board for support, the circuit board is arranged on the supporting structure, and a portion of the sound-emitting structure is supported on the supporting structure and electrically connected to the circuit board. The specific structure of the bracket 100 can also be designed according to actual needs, and this embodiment is not limited to this.

[0062] In this embodiment, the plurality of sound-emitting structures include a first sound-emitting structure 210 and a second sound-emitting structure 220. It should be noted that the first sound-emitting structure 210 and the second sound-emitting structure 220 each have at least one. Figure 5As shown, the first sound-emitting structure 210 includes a first free end 211 and a first fixed end 212 that are opposite to each other in the first direction X. The first fixed end 212 is connected to one end of the bracket 100, and the first free end 211 is arranged on the side of the diaphragm assembly 300 facing the cavity 130, and is fixedly connected to the diaphragm assembly 300, so that when the first free end 211 vibrates, it can drive the diaphragm assembly 300 to vibrate. The second sound-emitting structure 220 includes a second free end 221 and a second fixed end 222 that are opposite to each other in the first direction X, and the second fixed end 222 is connected to the other end of the bracket 100, and the second free end 221 is arranged on the side of the diaphragm assembly 300 facing the cavity 130, and is fixedly connected to the diaphragm assembly 300, so that when the second free end 221 vibrates, it can drive the diaphragm assembly 300 to vibrate. It can be seen that the first sound-emitting structure 210 and the second sound-emitting structure 220 in this embodiment are both cantilever beam structures.

[0063] In the speaker provided in this embodiment, the bracket 100 forms a cavity 130 that passes through the upper surface 110 and the lower surface 120, and the vibration component 200 includes a plurality of sound-emitting structures arranged on the bracket 100 in the same layer, and the plurality of sound-emitting structures include a first sound-emitting structure 210 and a second sound-emitting structure 220, a first fixed end 212 of the first sound-emitting structure 210 is connected to one end of the bracket 100 in the first direction X, and a second fixed end 222 of the second sound-emitting structure 220 is connected to the other end of the bracket 100 in the first direction X, and the first free end 211 and the second free end 221 are both arranged on the side of the diaphragm component 300 facing the cavity 130, and are both connected to the diaphragm component 300, forming a bilateral structure, so that the relative area between the sound-emitting structure and the diaphragm component 300 is larger, thereby increasing the effective area of ​​the vibration component 200 and the diaphragm component 300, thereby improving the sensitivity of the speaker, and thereby improving the acoustic performance of the speaker.

[0064] It should be noted that the speaker in this embodiment may be a single-diaphragm speaker or a dual-diaphragm speaker. Figures 1 to 6 The case where the speaker is a double-diaphragm speaker is shown.

[0065] Optionally, there is a gap between the first sound-emitting structure 210 and the second sound-emitting structure 220, so as to avoid interference between the two adjacent sound-emitting structures located in the same layer when they are warped and vibrated.

[0066] In some optional embodiments, the orthographic projections of the first sound-emitting structure 210 and the second sound-emitting structure 220 in the second direction Y have overlapping parts, that is, the first sound-emitting structure 210 and the second sound-emitting structure 220 can be staggered with each other, so that the lengths of the first sound-emitting structure 210 and the second sound-emitting structure 220 can be longer, so as to further increase the area of ​​the first sound-emitting structure 210 and the second sound-emitting structure 220, and further improve the sensitivity of the speaker. In addition, the lengths of the first sound-emitting structure 210 and the second sound-emitting structure 220 are longer, so that the forces applied by the first sound-emitting structure 210 and the second sound-emitting structure 220 to the diaphragm assembly 300 are similar or the same, and thus the resultant force on the diaphragm assembly 300 can be kept perpendicular to the surface of the diaphragm assembly 300 facing the cavity 130, thereby improving the effect of driving the diaphragm assembly 300. In addition, the longer lengths of the first sound-emitting structure 210 and the second sound-emitting structure 220 will also reduce the resonance frequency, thereby increasing the low-frequency sensitivity of the speaker.

[0067] For example, the area of ​​the overlapping part of the orthographic projections of the first sound emitting structure 210 and the second sound emitting structure 220 in the second direction Y is smaller than the area of ​​the orthographic projection of the first sound emitting structure 210 in the second direction Y, and is smaller than the area of ​​the orthographic projection of the second sound emitting structure 220 in the second direction Y.

[0068] Of course, it is understandable that Figure 8 and Fig. 9 As shown, the orthographic projections of the first sound emitting structure 210 and the second sound emitting structure 220 located in the upper layer in the second direction Y do not have overlapping parts, that is, the first sound emitting structure 210 and the second sound emitting structure 220 are not staggered, which is not limited in this embodiment.

[0069] For example, one or more of the first sound emitting structure 210 and the second sound emitting structure 220 may be provided, and this embodiment is not limited to this.

[0070] In this embodiment, Figure 5 As shown, the first free end 211 and the second free end 221 are alternately arranged in the second direction Y. When both the first sound-emitting structure 210 and the second sound-emitting structure 220 are provided with one, the first free end 211 of the first sound-emitting structure 210 and the second free end 221 of the second sound-emitting structure 220 are arranged in sequence in the second direction Y. When two first sound-emitting structures 210 are provided and one second sound-emitting structure 220 is provided, the second free end 221 of the second sound-emitting structure 220 is provided between the two first free ends 211. When one first sound-emitting structure 210 is provided and two second sound-emitting structures 220 are provided, the first free end 211 of the first sound-emitting structure 210 is provided between the two second free ends 221.

[0071] By alternately arranging the first free end 211 and the second free end 221 in the second direction Y, the first sound-emitting structure 210 will not affect the extension of the second sound-emitting structure 220 in the first direction X, and the second sound-emitting structure 220 will not affect the extension of the first sound-emitting structure 210 in the first direction X, so that the lengths of the first sound-emitting structure 210 and the second sound-emitting structure 220 in the first direction X can be longer, thereby reducing the resonance frequency and improving the low-frequency sensitivity.

[0072] In some other optional embodiments, the first free end 211 and the second free end 221 may not be arranged alternately. For example, the first sound-emitting structure 210 and the second sound-emitting structure 220 are each provided with multiple, at least two second free ends 221 are provided between two adjacent first free ends 211 in the second direction Y, or at least two first free ends 211 are provided between two adjacent second free ends 221 in the second direction Y. In this way, the mutual influence of the first sound-emitting structure 210 and the second sound-emitting structure 220 in the length direction can be avoided, so as to reduce the resonance frequency and improve the low-frequency sensitivity. For example, Figure 8 FIG. 2 is a schematic diagram of two first sound emitting structures 210 between two second sound emitting structures 220 adjacent to each other in the second direction Y. FIG.

[0073] Optionally, the vibration direction of the first sound-emitting structure 210 of the vibration assembly 200 in the third direction Z is the same as the vibration direction of the second sound-emitting structure 220 in the third direction Z, so as to ensure that the driving frequency of the diaphragm assembly 300 is consistent. It should be noted that when there are multiple vibration assemblies 200, the vibration direction of the first sound-emitting structure 210 of the same vibration assembly 200 in the third direction Z is the same as the vibration direction of the second sound-emitting structure 220 in the third direction Z.

[0074] In some optional embodiments, such as Figure 2 As shown, two groups of vibration components 200 are provided, and the two groups of vibration components 200 are arranged at intervals in the third direction Z. Correspondingly, two groups of diaphragm components 300 are also provided, and the two groups of diaphragm components 300 correspond to the two groups of vibration components 200 one by one. The two groups of diaphragm components 300 are arranged on the side of the corresponding vibration components 200 away from the bracket 100, so that the two groups of diaphragm components 300 can work normally. By providing two groups of vibration components 200, the two groups of vibration components 200 can cooperate with the two diaphragm components 300, and then the two diaphragm components 300 can be driven separately, thereby improving the acoustic performance.

[0075] Specifically, the sound-emitting structure of one group of vibration components 200 is connected to the top surface of the bracket 100, and a partial area of ​​the sound-emitting structure of one group of vibration components 200 is arranged above the cavity 130; the sound-emitting structure of another group of vibration components 200 is connected to the bottom surface of the bracket 100, and a partial area of ​​the sound-emitting structure of one group of vibration components 200 is arranged below the cavity 130.

[0076] Further optionally, the first sound-emitting structures 210 (or the first free ends 211) of the two groups of vibration components 200 have opposite vibration directions in the third direction Z, and the second sound-emitting structures 220 (or the second free ends 221) of the two groups of vibration components 200 have opposite vibration directions in the third direction Z. In this embodiment, the first sound-emitting structures 210 (or the first free ends 211) of the two groups of vibration components 200 move toward or away from each other in the third direction Z, and the second sound-emitting structures 220 (or the second free ends 221) of the two groups of vibration components 200 move toward or away from each other in the third direction Z, so that the vibrations of the first sound-emitting structures 210 (or the first free ends 211) of the two groups of vibration components 200 in the third direction Z will cancel each other out, and the vibrations of the second sound-emitting structures 220 (or the second free ends 221) of the two groups of vibration components 200 in the third direction Z will also cancel each other out, and then, on the basis of driving the diaphragm 310 to vibrate, the speaker as a whole will have no vibration or the vibration will be weakened, thereby achieving the purpose of vibration reduction, reducing the impact of the vibration of the speaker on the electronic device, and improving the user experience.

[0077] In some optional embodiments, such as Figure 4 and Figure 5 As shown, the orthographic projections of the sound-emitting structures of the two groups of vibration components 200 on the plane where the bracket 100 is located completely overlap, that is, the shapes and sizes of the first sound-emitting structures 210 of the two groups of vibration components 200 are the same, and the shapes and sizes of the second sound-emitting structures 220 of the two groups of vibration components 200 are the same. On the one hand, it is convenient for batch manufacturing of the first sound-emitting structure 210 and the second sound-emitting structure 220 to improve production efficiency. On the other hand, it improves the vibration cancellation effect of the first sound-emitting structure 210 of the two groups of vibration components 200, and improves the vibration cancellation effect of the second sound-emitting structure 220 of the two groups of vibration components 200, thereby reducing the vibration amplitude of the speaker. Among them, the plane where the bracket 100 is located is the XY plane in this embodiment.

[0078] For example, the cross-sectional shapes of the plurality of sound-emitting structures are the same, that is, the first sound-emitting structure 210 and the second sound-emitting structure 220 are the same in shape and size, so as to further facilitate the production of the sound-emitting structures.

[0079] For example, the cross section of the sound-generating structure is a rectangle, a trapezoid, a triangle or other shapes, which are not limited in this embodiment. Figure 5As shown, there is one first sound-emitting structure 210, and the cross section of the first sound-emitting structure 210 is an isosceles trapezoid, and there are two second sound-emitting structures 220. The first free end 211 of the first sound-emitting structure 210 is located between the second free ends 221 of the two second sound-emitting structures 220 in the second direction Y, and the cross section of the second sound-emitting structure 220 is a right-angle trapezoid. In this embodiment, the angle between the waist and the bottom edge of the first sound-emitting structure 210 is equal to the angle between the waist and the bottom edge of the second sound-emitting structure 220 that is not equal to 90°, so that the shapes of the multiple sound-emitting structures are more regular, and thus the plane space above or below the cavity 130 can be fully utilized.

[0080] It should be noted that one end of the bottom edge of the first sound-emitting structure 210 is connected to the bracket 100, and one end of the bottom edge of the second sound-emitting structure 220 is connected to the bracket 100, so as to improve the connection strength and reliability of the first sound-emitting structure 210 and the second sound-emitting structure 220 and the bracket 100.

[0081] Alternatively, if Figure 5 or Figure 6 As shown, the first free end 211 and the second free end 221 are both provided with a transmission member 230, and the transmission member 230 is provided on the side of the first sound-emitting structure 210 and the second sound-emitting structure 220 facing the corresponding diaphragm assembly 300, and the side of the transmission member 230 away from the first free end 211 connected thereto is connected to the diaphragm assembly 300, and the side of the transmission member 230 away from the second free end 221 connected thereto is connected to the diaphragm assembly 300. It can be seen that in this embodiment, the first free end 211 is connected to the diaphragm assembly 300 through the transmission member 230, and the second free end 221 is connected to the diaphragm assembly 300 through the transmission member 230, so that the first free end 211 and the second free end 221 can be transmitted to the diaphragm assembly 300 through the transmission member 230, and the transmission member 230 can also support the first free end 211 and the second free end 221, thereby improving the stability of the vibration assembly 200.

[0082] In some optional embodiments, such as Figure 2 As shown, the diaphragm assembly 300 includes a diaphragm 310 and a dome 320, wherein the periphery of the diaphragm 310 is fixedly connected between the bracket 100 and the upper fixed frame 500 or the lower fixed frame 600 of the speaker, the dome 320 is fixedly arranged on the side of the diaphragm 310 facing the vibration assembly 200, and the transmission member 230 is connected to the corresponding dome 320.

[0083] In some optional embodiments, the speaker further includes a housing (not shown in the figure), and the housing is connected to the bracket 100. Figure 1 and Figure 2As shown, the housing is provided with a front sound hole 810 and a rear sound hole 820, the diaphragm assembly 300 is connected to the housing, and the internal space of the housing is divided into a front sound cavity (not shown in the figure) and a rear sound cavity (not shown in the figure), the front sound hole 810 is connected to the front sound cavity, and the rear sound hole 820 is connected to the rear sound cavity. In this embodiment, the front sound cavity and the front sound hole 810 are both connected to the cavity 130. When two diaphragm assemblies 300 are provided. The front sound cavities of the two diaphragm assemblies 300 are connected through the cavity 130, and share a front sound hole 810. For example, the front sound hole 810 is opened on the bracket 100. The rear sound cavities of the two diaphragm assemblies 300 are independent of each other, and each corresponds to a rear sound hole 820.

[0084] For example, Figure 1 and Figure 2 As shown, the housing further includes an upper housing 400, an upper fixing frame 500, a lower fixing frame 600 and a lower housing 700, and the upper housing 400, the upper fixing frame 500, the bracket 100, the lower fixing frame 600 and the lower housing 700 are sequentially connected along the third direction Z. The two diaphragm assemblies 300 are respectively arranged on the upper fixing frame 500 and the lower fixing frame 600, and among the two rear sound holes 820, one rear sound hole 820 is formed by the upper housing 400 and the upper fixing frame 500, and the other rear sound hole 820 is formed by the lower housing 700 and the lower fixing frame 600.

[0085] The circuit board sends acoustic and electrical signals to the sound-generating structures of the two vibration components 200, driving the sound-generating structures to vibrate. The vibration of the sound-generating structures can push the air in the cavity 130 to flow to the outside through the front sound hole 810, or the air outside the shell enters the cavity 130 through the front sound hole 810. The sound-generating structure also drives the diaphragm assembly 300 to vibrate, thereby compressing the air in the front sound cavity and the rear sound cavity to make sound, thereby realizing the vibration sound-generating function.

[0086] Embodiment 2

[0087] The difference between this embodiment and the first embodiment lies in that the specific structures of the two groups of vibration components 200 are different.

[0088] Specifically, if Figures 7 to 10 As shown, the orthographic projections of the sound-generating structures of the two sets of vibration components 200 on the plane where the bracket 100 is located do not completely overlap, but partially overlap. Since the sound-generating structures of the two sets of vibration components 200 still have overlapping parts, the vibration amplitude of the speaker can be suppressed to a certain extent, thereby reducing the vibration amplitude of the speaker.

[0089] The orthographic projections of the sound-generating structures of the two groups of vibration components 200 on the plane where the bracket 100 is located do not completely overlap, and the sound-generating structures of the two groups of vibration components 200 may be different in size and / or length, etc., which is not limited in this embodiment.

[0090] Alternatively, if Figure 8 and Fig. 9 As shown, the lengths of the first sound-emitting structures 210 of the two groups of vibration components 200 in the first direction X are different, so that the orthographic projections of the first sound-emitting structures 210 of the two groups of vibration components 200 on the plane where the bracket 100 is located do not completely overlap. By setting the lengths of the first sound-emitting structures 210 of the two groups of vibration components 200 in the first direction X to be different, the vibration frequency points of the first sound-emitting structures 210 of different layers are staggered, that is, the resonance frequencies of the first sound-emitting structures 210 of different layers are different, so that the frequency response curve of the entire speaker is relatively flat, thereby improving the acoustic performance of the speaker.

[0091] For example, the orthographic projection of the first sound-emitting structure 210 of one group of vibration components 200 on the plane where the bracket 100 is located is located within the orthographic projection of the first sound-emitting structure 210 of another group of vibration components 200 on the plane where the bracket 100 is located, so that the cross-sectional areas of the first sound-emitting structures 210 of the two groups of vibration components 200 are both larger, thereby further improving the sensitivity of the speaker.

[0092] Similarly, the lengths of the second sound-emitting structures 220 of the two groups of vibration components 200 in the first direction X are different, so that the orthographic projections of the second sound-emitting structures 220 of the two groups of vibration components 200 on the plane where the bracket 100 is located do not completely overlap. By setting the lengths of the second sound-emitting structures 220 of the two groups of vibration components 200 in the first direction X to be different, the vibration frequency points of the second sound-emitting structures 220 of different layers are staggered, that is, the resonance frequencies of the second sound-emitting structures 220 of different layers are different, so that the frequency response curve of the entire speaker is relatively flat, thereby improving the acoustic performance of the speaker.

[0093] For example, the orthographic projection of the second sound-emitting structure 220 of one group of vibration components 200 on the plane where the bracket 100 is located is located within the orthographic projection of the second sound-emitting structure 220 of another group of vibration components 200 on the plane where the bracket 100 is located, so that the cross-sectional areas of the second sound-emitting structures 220 of the two groups of vibration components 200 are both larger, thereby further improving the sensitivity of the speaker.

[0094] The other structures of this embodiment are similar to the corresponding structures in the first embodiment and have similar beneficial effects, and are not described in detail here.

[0095] Embodiment 3

[0096] This embodiment provides an electronic device, including the speaker in Embodiment 1 or Embodiment 2. The electronic device provided by this embodiment has good sound quality.

[0097] The electronic device may include a mobile phone, a tablet personal computer, a laptop, a personal digital assistant (PDA), a camera, a personal computer, a laptop, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses, VR helmets, fixed-line handsets (pickups), medical auxiliary equipment (such as hearing aids), various headphones (such as wireless headphones or wired headphones), and other devices with speakers. The embodiments of the present application do not impose any special restrictions on the specific forms of the above-mentioned electronic devices.

[0098] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A loudspeaker, characterized in that include: A bracket (100), wherein the bracket (100) forms a cavity (130) penetrating the upper surface (110) and the lower surface (120); A diaphragm assembly (300), the periphery of which is fixedly connected to the bracket (100); A vibration component (200), the vibration component (200) being arranged on a side of the diaphragm component (300) facing the support (100), and the vibration component (200) being capable of driving the diaphragm component (300) to vibrate along a third direction (Z), the vibration component (200) comprising a plurality of sound-generating structures, and the plurality of sound-generating structures being arranged on the support (100) in the same layer; The plurality of sound-emitting structures include a first sound-emitting structure (210) and a second sound-emitting structure (220), wherein the first sound-emitting structure (210) includes a first free end (211) and a first fixed end (212) which are opposite to each other in a first direction (X), wherein the first fixed end (212) is connected to one end of the support (100), and the first free end (211) is arranged on a side of the diaphragm assembly (300) facing the cavity (130), and is fixedly connected to the diaphragm assembly (300); the second sound-emitting structure (220) includes a second free end (221) and a second fixed end (222) which are opposite to each other in the first direction (X), wherein the second fixed end (222) is connected to the other end of the support (100), and the second free end (221) is arranged on a side of the diaphragm assembly (300) facing the cavity (130), and is fixedly connected to the diaphragm assembly (300), and the first direction (X) is perpendicular to the third direction (Z); The vibration components (200) are provided with two groups, wherein the sound-generating structure of one group of the vibration components (200) is connected to the top surface of the bracket (100), and a partial area of ​​the sound-generating structure of one group of the vibration components (200) is arranged above the cavity (130); and the sound-generating structure of the other group of the vibration components (200) is connected to the bottom surface of the bracket (100), and a partial area of ​​the sound-generating structure of one group of the vibration components (200) is arranged below the cavity (130).

2. The loudspeaker according to claim 1, characterized in that There is a gap between the first sound-emitting structure (210) and the second sound-emitting structure (220) of the same group of vibration components (200); the orthographic projections of the first sound-emitting structure (210) and the second sound-emitting structure (220) of the same group of vibration components (200) in the second direction (Y) have overlapping parts, and any two of the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other; The first free ends (211) and the second free ends (221) of the same group of vibration components (200) are alternately arranged in the second direction (Y); or, the first sound-emitting structure (210) and the second sound-emitting structure (220) of the same group of vibration components (200) are each provided with a plurality, and at least two second free ends (221) are provided between two adjacent first free ends (211) in the second direction (Y); or, the first sound-emitting structure (210) and the second sound-emitting structure (220) of the same group of vibration components (200) are each provided with a plurality, and at least two first free ends (211) are provided between two adjacent second free ends (221) in the second direction (Y).

3. The loudspeaker according to claim 1 or 2, characterized in that: The vibration direction of the first sound-emitting structure (210) in the same group of the vibration components (200) in the third direction (Z) is the same as the vibration direction of the second sound-emitting structure (220) in the third direction (Z).

4. The loudspeaker according to claim 1 or 2, characterized in that: The first free end (211) and the second free end (221) are both provided with a transmission member (230), and the transmission member (230) is arranged on a side of the first sound-emitting structure (210) and the second sound-emitting structure (220) that is away from the cavity (130), and a side of the transmission member (230) that is away from the first free end (211) and the second free end (221) is connected to the diaphragm assembly (300).

5. The loudspeaker according to claim 1, characterized in that The diaphragm assembly (300) is also provided with two groups, the two groups of diaphragm assemblies (300) correspond one to one to the two groups of vibration assemblies (200), and the two groups of diaphragm assemblies (300) are arranged on a side of the corresponding vibration assembly (200) facing away from the bracket (100).

6. The loudspeaker according to claim 5, characterized in that The orthographic projections of the sound-generating structures of the two groups of vibration components (200) on the plane where the support (100) is located completely overlap.

7. The loudspeaker according to claim 5, characterized in that The orthographic projections of the sound-generating structures of the two groups of vibration components (200) on the plane where the support (100) is located do not completely overlap.

8. The loudspeaker according to claim 5, characterized in that The first sound-generating structures (210) of the two groups of vibration components (200) have different lengths in the first direction (X), and the second sound-generating structures (220) of the two groups of vibration components (200) have different lengths in the first direction (X).

9. The loudspeaker according to claim 5, characterized in that The first sound-emitting structures (210) of the two groups of vibration components (200) have opposite vibration directions in the third direction (Z), and the second sound-emitting structures (220) of the two groups of vibration components (200) have opposite vibration directions in the third direction (Z), and the third direction (Z) is perpendicular to the first direction (X).

10. An electronic device, characterized in that Comprising a speaker as described in any one of claims 1-9.

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