Vibration assembly and speaker

Abstract

Embodiments of the present specification relate to a vibration assembly and a speaker. A vibration element of the vibration assembly comprises a first vibration part and a second vibration part connected via a first connecting part. The first vibration part and a first magnet are spaced apart in a vibration direction, and the second vibration part and a second magnet are also spaced apart in the vibration direction. The first magnet and the second magnet are respectively disposed on two sides of the vibration element in the vibration direction of the vibration element. In a second direction perpendicular to the vibration direction, a projection of the first vibration part and a projection of the second vibration part are offset from each other, and a projection of a vibration space of the first vibration part and a projection of a thickness space of the second magnet at least partially overlap. Accordingly, the thickness of the vibration assembly is the sum of the thickness of the first magnet corresponding to the first vibration part and a dimension obtained after the vibration space of the first vibration part and the thickness space of the second magnet are overlapped in the vibration direction, thereby reducing the total thickness of the vibration assembly and reducing the volume.

Description

A vibrating short component and a loudspeaker Cross-referencing L0001J This specification claims priority to Chinese application No. 202411999179.6, filed on December 31, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This specification relates to the field of acoustic technology, and in particular to a vibrating component and a loudspeaker. Background Technology

[0003] Vibrating components can convert electrical signals into sound signals and are widely used in sound-producing electronic and electrical devices. They are also core components in loudspeakers and headphones.

[0004] Planar diaphragm resonators are a common type of resonator. In this configuration, horizontally distributed voice coils are printed or mounted on the diaphragm, with magnets distributed on both sides of the diaphragm. The voice coils are situated within a horizontal magnetic field formed by the multiple magnets. When an external current is applied to the voice coil, it generates a force perpendicular to the diaphragm, causing the voice coil and the diaphragm at its location to vibrate, thereby pushing air to produce sound.

[0005] Planar diaphragm-based vibrating components can offer advantages such as high fidelity, wide frequency response, and good linearity. However, traditional planar diaphragm-based vibrating components are relatively thick, have a large overall volume, and exhibit low magnetic field efficiency.

[0006] Therefore, it is necessary to propose a vibration component and speaker that improves magnetic field efficiency and reduces overall size. Summary of the Invention

[0007] This specification provides a vibration assembly, including: a vibration element comprising a first vibration portion, a second vibration portion, and a first connecting portion, the first connecting portion connecting the first vibration portion and the second vibration portion; and a plurality of magnets, the plurality of magnets including a first magnet and a second magnet, the first magnet and the second magnet being respectively disposed on both sides of the vibration element in the vibration direction, the first vibration portion and the first magnet being spaced apart in the vibration direction, and the second vibration portion and the second magnet being spaced apart in the vibration direction; wherein, in a second direction perpendicular to the vibration direction, the projections of the first vibration portion and the second vibration portion are staggered; in the second direction, the projection of the vibration space of the first vibration portion and the projection of the thickness space of the second magnet at least partially overlap.

[0008] This specification also provides a loudspeaker, including a housing and at least one vibration component as described above, wherein the housing has a hollow cavity inside, and the at least one vibration component is housed in the hollow cavity of the housing. Attached Figure Description

[0009] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0010] Figure 1 is an exemplary block diagram of a vibration assembly according to some embodiments of this specification: Figure 2 is a structural schematic diagram of a vibration assembly according to some embodiments of this specification;

[0012] Figure 3 is a schematic diagram of the structure of another vibration component according to some embodiments of this specification;

[0013] Figure 4 is a schematic diagram of the structure of another vibration component according to some embodiments of this specification;

[0014] Figure 5 is a structural schematic diagram of another vibration component according to some embodiments of this specification;

[0015] Figure 6 is a graph showing the relationship between the size of the overlapping area and the average value of the magnetic induction intensity of the vibrating part according to some embodiments of this specification;

[0016] Figure 7 is a structural schematic diagram of another vibration component according to some embodiments of this specification; Figure 8 is a structural schematic diagram of another vibration component according to some embodiments of this specification;

[0018] Figure 9 is a schematic diagram of the structure of another vibration component according to some embodiments of this specification; "0019" FIG10 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification;

[0020] Figure 11 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification;

[0021] Figure 12 is a schematic diagram of the arrangement of magnets according to some embodiments of this specification;

[0022] Figure 13 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification;

[0023] Figure 14 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification; Figure 15 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification;

[0025] Figure 16 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification;

[0026] Figure 17 is a schematic diagram of yet another vibration assembly according to some embodiments of this specification;

[0027] Figure 18 is a structural schematic diagram of another vibration component according to some embodiments of this specification; Figure 19 is a structural schematic diagram of another vibration component according to some embodiments of this specification; Figure 20A is a schematic diagram of the structure of a vibration element according to some embodiments of this specification;

[0030] Figure 20B is another structural schematic diagram of the vibrating element shown in Figure 20A; [F0031] Figure 21A is a structural schematic diagram of another vibration element according to some embodiments of this specification;

[0032] Figure 21B is another structural schematic diagram of the vibration element shown in Figure 21A;

[0033] Figure 22A is a schematic diagram of the structure of yet another vibration element according to some embodiments of this specification;

[0034] Figure 22B is another structural schematic diagram of the vibrating element shown in Figure 22A;

[0035] Figure 23A is a schematic diagram of the structure of a vibration element according to some embodiments of this specification; Figure 23B is a schematic diagram of the structure of a vibration assembly equipped with the vibration element shown in Figure 23A;

[0037] Figure 24A is a schematic diagram of the structure of a vibration element according to some embodiments of this specification;

[0038] Figure 24B is a schematic diagram of the structure of a vibration assembly equipped with the vibration element shown in Figure 24A;

[0039] Figure 25 is an exemplary block diagram of a loudspeaker according to some embodiments of this specification;

[0040] Figure 26 is a schematic diagram of the structure of a loudspeaker according to some embodiments of this specification;

[0041] Figure 27 is a structural schematic diagram of yet another loudspeaker according to some embodiments of this specification;

[0042] Figure 28 is a schematic diagram of the structure of yet another loudspeaker according to some embodiments of this specification: Figure 29 (L0043J) is a graph showing the relationship between the overlapping area size of different loudspeakers and the average value of the magnetic induction intensity of the vibrating part according to some embodiments of this specification. Detailed Implementation

[0044] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations. L0045J It should be understood that the terms "system," "device," "unit," and / or "module" used herein are one method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0046] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. L0047J This specification uses flowcharts to illustrate the operations performed by the system according to embodiments of this specification. It should be understood that the preceding or following kneading operations are not necessarily performed precisely in sequence. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0048] Planar diaphragm resonators typically consist of horizontally distributed voice coils printed or glued onto the diaphragm, with magnets distributed on both sides of the diaphragm. The voice coil is situated within a horizontal magnetic field formed by the multiple magnets. When an external current is applied to the voice coil, it generates a force perpendicular to the diaphragm, causing the voice coil and the diaphragm at its location to vibrate, thereby pushing air to produce sound. Planar diaphragm resonators offer advantages such as high fidelity, wide frequency response, and good stability. However, traditional planar diaphragm resonators are relatively thick, have a large overall volume, and exhibit lower magnetic field efficiency.

[0049] Therefore, some embodiments of this specification provide a vibration assembly whose vibration element includes a first vibration portion and a second vibration portion offset from each other in the vibration direction. The first vibration portion and a first magnet are arranged at intervals in the vibration direction, and the second vibration portion and a second magnet are arranged at intervals in the vibration direction, with the first magnet and the second magnet located on opposite sides of the vibration element in the vibration direction. In the vibration direction, the vibration space of the first vibration portion and the thickness space of the second magnet at least partially overlap. Therefore, the thickness of the vibration assembly is the sum of the thickness of the first magnet corresponding to the first vibration portion and the size of the overlap between the vibration space of the first vibration portion and the thickness space of the second magnet in the vibration direction, thereby reducing the total thickness of the vibration assembly and reducing its volume. Figure 1 is an exemplary block diagram of a vibration assembly according to some embodiments of this specification. Figure 2 is a structural schematic diagram of a vibration assembly according to some embodiments of this specification.

[0051] This specification provides a vibration component 10 in some embodiments, which can convert electrical signals into mechanical vibrations. The vibration component 10 can be applied in loudspeakers or other acoustic output devices to generate sound through mechanical vibrations.

[0052] As shown in Figures 1 and 2, the vibration assembly 10 may include a vibration element 100 and a plurality of magnets. In some embodiments, the vibration assembly 10 may also include other structures. For example, the vibration assembly 10 may also include a support member, which can fix the components in the vibration assembly 10. For example, the support member can be used to fix the vibration element 100 so that the vibration element 100 can vibrate freely within a certain range. Alternatively, the support member can also be used to fix the magnets. The support member can be a separately installed structure or the magnet itself. L0053J Vibration element 100 is the vibrating component in vibration assembly 10. L0054J In some embodiments, the vibration element 100 includes a first vibration part 110-1, a second vibration part 110-2, and a first connecting part 120-1, the first connecting part 120-1 connecting the first vibration part 110-1 and the second vibration part 110-2. [F0055] The first vibrating part and the second vibrating part 110-2 are the parts of the vibrating element 100 that generate driving force. The first vibrating part 1 and the second vibrating part 110-2 vibrate along the vibration direction, driving the entire vibrating element to vibrate. It should be noted that the vibrating element 100 may include more vibrating parts (for example, the third vibrating part 110-3, the fourth vibrating part 110-4, etc. shown in FIG2). According to actual design requirements, the number of vibrating parts can be 2, 3, 5, 6, etc., and is not limited here. In some practical examples, the first vibrating part 110-1 and the second vibrating part 110-2 are staggered in the vibration direction. That is, in the vibration direction, the first vibrating part 110-1 and the second vibrating part 110-2 are at different heights. In other words, in a second direction perpendicular to the vibration direction, the projection of the first vibrating part 110-1 and the projection of the second vibrating part 110-2 are staggered. The projection of the first vibrating part 110-1 in the second direction can be understood as the orthographic projection of the first vibrating part 110-1 onto a reference plane perpendicular to the second direction. It should be noted that any other projections of objects along a reference direction mentioned in this specification can be understood as the orthographic projection of that object onto a reference plane perpendicular to the reference direction.

[0056] The first connecting portion 120-1 serves to connect adjacent first vibrating portions 110-1 and second vibrating portions 110-2. Through the connection of the first connecting portion 120-1, the first vibrating portions 110-1 and second vibrating portions 110-2 can be arranged along a second direction perpendicular to the vibration direction, so that the first vibrating portions 110-1 and second vibrating portions 110-2 can be staggered in the second direction. In some embodiments, when there are multiple vibrating portions, any two adjacent vibrating portions are connected by a corresponding connecting portion. In some embodiments, when the vibration assembly 10 includes a support member, the connecting portion can also connect the support member and the vibrating portions adjacent to the support member. [F0057] In some embodiments, the plurality of magnets may include a first magnet 210-1 and a second magnet 210-2. The first magnet 210-1 and the second magnet 210-2 are respectively disposed on both sides of the vibration element 100 in the vibration direction. The first vibration part 110-1 and the first magnet 210-1 are arranged at intervals in the vibration direction, and the second vibration part 110-2 and the second magnet 210-2 are arranged at intervals in the vibration direction. The first vibration part 110-1 can vibrate under the magnetic field of the first magnet 210-1, and the second vibration part 110-2 can vibrate under the magnetic field of the second magnet. L0058J In some embodiments, the number of multiple magnets may correspond to the number of vibrating parts, each vibrating part may correspond to one magnet, and each vibrating part may generate vibration under the magnetic field of the corresponding magnet. "0059" In some embodiments, the parameters of multiple magnets may be the same to ensure the uniformity of the magnetic field of each magnet at the corresponding vibration section location. The parameters of the magnet may refer to parameters characterizing the shape and performance of the magnet. For example, the parameters of the magnet may include, but are not limited to, the size of the magnet, magnetic flux, magnetic flux density, etc. It is worth noting that the aforementioned parameters of the magnet do not include the orientation of the magnetic poles of the magnet.

[0060] In some embodiments, for multiple magnets located on the same side of the vibrating element 100, the positions of the multiple magnets in the vibration direction may be the same or similar. In other embodiments, for multiple magnets located on the same side of the vibrating element 100, the positions of the multiple magnets in the vibration direction may not be completely consistent, and the multiple magnets may be arranged in an alternating or layered manner along the vibration direction of the vibrating element 100. As an example only, the number of magnets located on the same side of the vibrating element 100 may be 5, of which three magnets may be located in the same or similar positions in the vibration direction, which is regarded as the first layer of magnet structure; the other two magnets may be located in the same or similar positions in the vibration direction, and their positions in the vibration direction are different from those of the first layer of magnet structure, and these two magnets may be regarded as the second layer of magnet structure. In some embodiments, in order to improve the vibration stability of the vibrating assembly 10 and improve the vibration consistency of each vibrating part of the vibrating element 100, the number of magnets on both sides of the vibrating element 100 and the number of layers of magnet structure may be the same.

[0061] Referring to Figure 2, in some embodiments, a first magnet 210-1, which is spaced apart from the first vibrating part 110-1 in the vibration direction, can be considered as a magnet opposite to the first vibrating part 110-1, and a second magnet 210-2, which is located on a different side of the vibration element 100 from the first magnet 210-1, can be considered as a magnet on the same side as the first vibrating part 110-1. Correspondingly, a second magnet 210-2, which is spaced apart from the second vibrating part 110-2 in the vibration direction, can be considered as a magnet opposite to the second vibrating part 110-2, and a first magnet 210-1, which is located on a different side of the vibration element 100 from the second magnet 210-2, can be considered as a magnet on the same side as the second vibrating part 110-2.

[0062] It should be noted that the following description of the vibration element 10 will use the first vibration part 110-1, the first magnet 210-1, and the second magnet 210-2 as examples. However, it can be understood that the relationship between the first vibration part 110-1 and the first magnet 210-1 can be equivalent to the relationship between any vibration part and its corresponding opposite magnet (e.g., the relationship between the second vibration part 110-2 and the second magnet 210-2); the relationship between the first vibration part 110-1 and the second magnet 210-2 can be equivalent to the relationship between any vibration part and its corresponding same-side magnet (e.g., the relationship between the second vibration part 110-2 and the first magnet 210-1).

[0063] In some embodiments, a plurality of magnets are spaced apart in a second direction to provide a magnetic field to their respective corresponding vibrating parts, thereby preventing the magnets from colliding with adjacent vibrating parts in the second direction (e.g., the first vibrating part 110-1 and the second magnet 210-2). For example, the first magnet 210-1 and the second magnet 210-2 are spaced apart in the second direction.

[0064] In some embodiments, the magnetization directions of the plurality of magnets are all parallel to the second direction, so that the magnetic induction intensity at the corresponding vibrating part (e.g., the first vibrating part 110-1 corresponding to the first magnet 210-1) is large. For example, the magnetization directions of the first magnet 210-1 and the second magnet 210-2 are both parallel to the second direction.

[0065] In some embodiments, for any vibrating part, the magnetization direction of the magnet on the opposite side of the vibrating part is opposite to that of the magnet on the same side. The magnet on the same side can "suppress magnetization" the magnetic field formed by the magnet on the opposite side, changing the magnetic field distribution of the magnetic field of the magnet on the opposite side, and further increasing the magnetic induction intensity at the location of the vibrating part. For example, the magnetization direction of the first magnet 210-1 is opposite to that of the second magnet 210-2. The first vibrating part 110-1 is located in the magnetic field B of the first magnet 210-1 on the opposite side. The second magnet 210-2 on the same side can suppress magnetization of the first magnet 210-1 on the opposite side, increasing the magnetic induction intensity at the first vibrating part 110-1. For example, referring to FIG2, the two adjacent magnetic poles of the first magnet 210-1 and the second magnet 210-2 along the second direction are both N poles. Since like poles repel each other, the N pole in the second magnet 210-2 will "suppress magnetism" on the magnetic field formed between the two magnetic poles of the first magnet 210-1, changing the magnetic field distribution of the magnetic field B of the first magnet 210-1, thereby increasing the magnetic induction intensity at the location of the first vibrating part 110-1.

[0066] In some embodiments, for the third vibration part 110-3, the magnetization direction of the third magnet 210-3 on the opposite side is opposite to the magnetization direction of the second magnet 210-2 and the fourth magnet 210-4 on the same side, while the magnetization directions of the second magnet 210-2 and the fourth magnet 210-4 on the same side are the same. The third vibration part 110-3 is located in the magnetic field B of the third magnet 210-3 on the opposite side (not shown in the figure). At the same time, the two adjacent magnetic poles of the second magnet 210-2 and the fourth magnet 210-4 on the same side attract each other along the second direction to form a strong magnetic field A. Therefore, the third vibration part 110-3 can also be located in the magnetic field A formed between the two adjacent magnetic poles of the second magnet 210-2 and the fourth magnet 210-4 on the same side along the second direction. Furthermore, the magnetic field lines of magnetic field A at the third vibration section 110-3 are in the same direction as those of magnetic field B at the same location. Magnetic field A and magnetic field B superimpose at the third vibration section 110-3, thereby further enhancing the magnetic induction intensity at that location. Therefore, by designing the magnetization direction of the magnet as described above, the magnetic induction intensity at the location of the vibration section can be further increased. Figure 3 is a structural schematic diagram of another vibration component according to some embodiments of this specification.

[0068] Referring to Figures 2 and 3, in some embodiments, the first vibrating part 110-1 and the second vibrating part 110-2 are staggered in the vibration direction, so that the vibrating element 100 forms a square wave structure. The magnet corresponding to each vibrating part can be disposed in the corresponding recessed area of ​​the vibrating part, thereby reducing the thickness and volume of the vibrating assembly 10. For example, the first magnet 210-1 can be disposed in the recessed structure corresponding to the first vibrating part 110-1, and the second magnet 210-2 can be disposed in the recessed structure corresponding to the second vibrating part 110-2, and the opening orientation of the recessed structure corresponding to the first vibrating part 110-1 is opposite to the opening orientation of the recessed structure corresponding to the second vibrating part 110-2.

[0069] In some embodiments, when the vibration element 100 includes a plurality of vibration parts, any two adjacent vibration parts can be staggered in the vibration direction. For example, the first vibration part 110-1 and the second vibration part 110-2 are staggered, and the second vibration part 110-2 and the third vibration part 110-3 are staggered, etc. [F0070] In some embodiments, in the vibration direction, the vibration space E of the first vibration part 110-1 and the thickness space G of the second magnet 210-2 at least partially overlap. In some embodiments, in the second direction, the projection of the vibration space E of the first vibration part 110-1 and the projection of the thickness space G of the second magnet 210-2 at least partially overlap. Therefore, the thickness of the vibration assembly 10 is the sum of the thickness of the corresponding first magnet 210-1 of the first vibration part 110-1 (the thickness of the thickness space F) and the dimensions of the vibration space E of the first vibration part 110-1 and the thickness space G of the second magnet 210-2 after overlapping in the vibration direction, thereby reducing the total thickness of the vibration assembly 10 and reducing the volume of the vibration assembly. Referring to Figure 3, the first vibrating part 110-1 has a lowest position A1 and a highest position A2 in the vibration direction. The space between the lowest position A1 and the highest position A2 is the vibration space Eo of the first vibrating part 110-1. In some embodiments, the vibration space E can be the space in the vibration direction between a reference point on the first vibrating part 110-1 when it is at the lowest position A1 and the reference point when it is at the highest position A2. In some embodiments, the vibration space E can also be the space in the vibration direction between the bottom surface of the first vibrating part 110-1 when it is at the lowest position A1 and the top surface of the first vibrating part 110-1 when it is at the highest position A2. In some embodiments, for any vibrating part, the vibration space of the vibrating part at least partially overlaps with the thickness space of the corresponding magnet on the same side.

[0071] In some embodiments, for any vibrating part, in the vibration direction, the vibration space of the vibrating part may only partially overlap with the thickness space of the corresponding magnet on the same side. For example, in the vibration direction, the vibration space E of the first vibrating part 110-1 and the thickness space G of the second magnet 210-2 only partially overlap, as shown in FIG3. In some embodiments, for any vibrating part, in the vibration direction, the vibration space of the vibrating part may be covered by the thickness space of the corresponding magnet on the same side. For example, in the vibration direction, the vibration space of the first vibrating part 110-1 is located within the thickness space of the second magnet 210-2, as shown in FIG7.

[0072] In some embodiments, referring to Figure 3, the vibration space E of the first vibrating part 110-1 and the thickness space F of the first magnet 210-1 are not overlapped in the vibration direction to avoid collision between the first vibrating part 110-1 and the first magnet 210-1, which would cause sound distortion. Correspondingly, for any vibrating part, its vibration space and the thickness space of the corresponding opposite magnet are not overlapped in the vibration direction to avoid collision between the vibrating element 100 and the magnet, which would cause sound distortion.

[0073] In some embodiments, the relative positional relationship between the vibrating part and the magnet on the same side (e.g., the relative position between the first vibrating part 110-1 and the second magnet 210-2) can be designed to further reduce the thickness of the vibration assembly 10.

[0074] Figure 4 is a structural schematic diagram of another vibration component according to some embodiments of this specification.

[0075] Referring to Figure 4, in some embodiments, the first magnet 210-1 and the second magnet 210-2 are staggered in the vibration direction so that there is a gap between the first magnet 210-1 and the second magnet 210-2 in the vibration direction, thereby facilitating the design of the vibration element 100 and reducing the manufacturing difficulty of the vibration assembly 10.

[0076] In some embodiments, if the distance L between the first magnet 210-1 and the second magnet 210-2 in the vibration direction is too large, it will not only result in a low magnetic induction intensity at the first vibrating part 110-1, affecting the output of the vibration assembly 10, but also result in an excessively large thickness of the vibration assembly 10. Therefore, the distance L between the first magnet 210-1 and the second magnet 210-2 in the vibration direction can be set to be small. Wherein, the distance L between the first magnet 210-1 and the second magnet 210-2 in the vibration direction can be the minimum distance between the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 in the vibration direction. Taking Figure 4 as an example, in the vibration direction, the first magnet 210-1 is located on the lower side of the vibration element 100, and the second magnet 210-2 is located on the upper side of the vibration element 100. Then the aforementioned distance L is the distance between the top of the first magnet 210-1 and the bottom of the second magnet 210-2 in the vibration direction.

[0078] In some embodiments, in a static state, the distance between the first vibrating part 110-1 and the first magnet 210-1 in the vibration direction is greater than the distance between the first vibrating part 110-1 and the second magnet 210-2. Referring to Figure 4, in the vibration direction, the distance between the first vibrating part 110-1 and the first magnet 210-1 is L1, and the distance between the first vibrating part 110-1 and the second magnet 210-2 is L2, where L1 is greater than L2. That is, in a static state, in the vibration direction, the distance L1 between the first vibrating part 110-1 and the first magnet 210-1 is greater than half of the distance L between the first magnet 210-1 and the second magnet 210-2. In the vibration direction, the distance L1 between the first vibrating part 110-1 and the first magnet 210-1 can be the distance between the end faces (e.g., the upper end face) of the first vibrating part 110-1 and the first magnet 210-1 closest to the corresponding vibrating part (i.e., the first vibrating part 110-1) in the vibration direction. Similarly, the distance L2 between the first vibrating part 110-1 and the second magnet 210-2 can be the distance between the end faces (e.g., the lower end face) of the first vibrating part 110-1 and the second magnet 210-2 closest to the corresponding vibrating part (i.e., the second vibrating part 110-2) in the vibration direction.

[0079] Since the second magnet 210-2 and the first vibrating part 110-1 are arranged adjacent to each other in the second direction, the first vibrating part 110-1 will not collide with the second magnet 210-2 when vibrating. Therefore, the distance L2 between the first vibrating part 110-1 and the second magnet 210-2 in the vibration direction can be set to be small. Since the first magnet 210-1 and the first vibrating part 110-1 are arranged at intervals in the vibration direction, in order to avoid the first vibrating part 11CM colliding with the first magnet 210-1 during vibration and causing distortion, there needs to be sufficient space between the first magnet 21CM and the first vibrating part 11CM. Therefore, the distance L1 between the first vibrating part 110-1 and the first magnet 210-1 in the vibration direction can be set to be large. Taking all factors into consideration, by designing that in a static state, in the vibration direction, the distance L1 between the first vibrating part 110-1 and the first magnet 210-1 is greater than the distance L2 between the first vibrating part 110-1 and the second magnet 210-2, it is possible to avoid the vibration element 100 colliding with the magnet and causing sound distortion, while also making the vibration assembly 10 have a smaller thickness and volume. Accordingly, for any vibrating part, in a static state, in the vibration direction, the distance L1 between the vibrating part and the corresponding opposite magnet is greater than the distance L2 between the vibrating part and the corresponding same-side magnet. For example, for the second vibrating part 110-2, in a static state, in the vibration direction, the distance L1 between the second vibrating part and the second magnet 210-2 is greater than the distance L2 between the second vibrating part 110-2 and the first magnet 210-1.

[0081] In some embodiments, the first vibrating part 110-1 is mainly located in the magnetic field of the corresponding opposite magnet, the first magnet 210-1, and the magnetic induction intensity at the location of the first vibrating part 110-1 mainly originates from the effect of the magnetic field B (as shown in Figure 2). However, as described in the preceding embodiments of this specification, by at least partially overlapping the vibration space of the vibrating part with the thickness space of the corresponding same-side magnet in the vibration direction, the magnetic induction intensity at the location of the vibrating part can be increased. For example, as shown in Figure 2, the third vibrating part 110-3 can be located simultaneously in magnetic field A and the "suppressed magnetization" magnetic field B, thereby increasing the magnetic induction intensity at the location of the third vibrating part 110-3. The smaller the distance L between the corresponding opposite magnet and the corresponding same-side magnet in the vibration direction, the stronger the "suppressed magnetization" effect of the same-side magnet on the magnetic field formed by the opposite magnet when the two adjacent magnetic poles of the same-side magnet and the opposite magnet are the same along the second direction, thereby further increasing the magnetic induction intensity at the location of the vibrating part and improving the magnetic field efficiency of the vibration assembly 10.

[0082] In some embodiments, in order to improve the magnetic field efficiency of the vibration component 10 and reduce the thickness of the vibration component 10, the distance L between the first magnet 210-1 and the second magnet 210-2 in the vibration direction can be 0 mm, as shown in Figure 2. That is, the thickness space of the first magnet 210-1 and the thickness space of the second magnet 210-2 are just in contact or just do not overlap in the vibration direction.

[0083] Figure 5 is a structural schematic diagram of another vibration component according to some embodiments of this specification. [F0084] Referring to Figure 5, in some embodiments, in order to further improve the magnetic field efficiency of the vibration component 10 and reduce the thickness of the vibration component 10, the distance between the first magnet 210-1 and the second magnet 210-2 in the vibration direction can be less than zero. That is, in the vibration direction, the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 at least partially overlap. Correspondingly, for any vibration part, the thickness space of the corresponding opposite magnet and the thickness space of the same side magnet at least partially overlap in the vibration direction.

[0085] In some embodiments, the larger the size h of the overlapping region between the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 in the vibration direction, the smaller the thickness of the vibration assembly 10. When the two adjacent magnetic poles of the first magnet 210-1 and the second magnet 210-2 are the same along the second direction, the stronger the "suppressive magnetization" effect of the first magnet 210-1 on the magnetic field formed by the second magnet 210-2, and the stronger the "suppressive magnetization" effect of the second magnet 210-2 on the magnetic field formed by the first magnet 210-2, thereby further increasing the magnetic induction intensity at the location of the corresponding vibration part and improving the magnetic field efficiency of the vibration assembly 10.

[0086] Figure 6 is a graph showing the relationship between the size of the overlapping region and the average value of the magnetic induction intensity of the vibrating part according to some embodiments of this specification. In Figure 6, the negative axis represents the overlap of the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 in the vibration direction; the zero point represents the fact that the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 are just touching or just not overlapping in the vibration direction; the positive axis represents the fact that the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 are offset in the vibration direction. That is, in the horizontal axis of the coordinate system shown in Figure 6, the absolute value of a negative number represents the value of the size h of the overlapping region, and the positive value represents the value of the interval L. The size h of the overlapping region is negative, which is the negative value in the horizontal axis shown in Figure 6. L0087J Please refer to Figure 6. The unit of the horizontal axis is X, and the unit of the vertical axis (the average value of the magnetic induction intensity of the vibrating part) is Bo». Here, X and Bo are pre-specified unit values. For example, X can be 2mm, and Bo can be 3T.

[0088] As shown in Figure 6, when the abscissa is less than 0, the average value of the magnetic induction intensity of the vibrating part gradually increases as the abscissa gradually decreases. That is, when the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 at least partially overlap in the vibration direction, the average value of the magnetic induction intensity of the first vibrating part 110-1 gradually increases as the size h of the overlapping area in the vibration direction increases. For example, when the abscissa is -0.2X, the size h of the overlapping area in the vibration direction is 0.2X, and the average value of the magnetic induction intensity of the first vibrating part 110-1 is 0.36Bo; when the abscissa decreases to -0.5X, the size h of the overlapping area in the vibration direction increases to 0.5X, and the average value of the magnetic induction intensity of the vibrating part 110 increases to 0.43Bo.

[0089] Figure 7 is a structural schematic diagram of another vibration component according to some embodiments of this specification.

[0090] Referring to Figures 5 and 7, the first magnet 210-1 is the magnet opposite to the first vibrating part 110-1, the second magnet 210-2 is the magnet opposite to the second vibrating part 110-2, and the third magnet 210-3 is the magnet opposite to the third vibrating part 110-3. When the thickness space of the first magnet 210-1 and the thickness space of the second magnet 210-2 at least partially overlap in the vibration direction, the overall space of the vibration space required by the first vibrating part 110-1 in the vibration direction and the thickness space of the first magnet 210-1 in the vibration direction completely overlaps with the overall space of the vibration space required by the second vibrating part 110-2 in the vibration direction and the thickness space of the second magnet 210-2 in the vibration direction, and the overall space of the vibration space required by the third vibrating part 110-3 in the vibration direction and the thickness space of the third magnet 210-3 in the vibration direction, and the thickness of the vibrating assembly 10 is minimized. At this time, in the vibration direction, the end of the vibration space of any vibration part away from the corresponding magnet on the opposite side is aligned with the end of the thickness space of the magnet on the same side away from the vibration element 100, and the end of the vibration space of the vibration part facing the corresponding magnet on the opposite side is aligned with the end of the thickness space of the opposite magnet facing the vibration part. For example, for the first vibration part 110-1, in the vibration direction, the top of its vibration space is aligned with the top of the second magnet 210-2, and the bottom of its vibration space is aligned with the top of the first magnet 210-1. At this time, the size h of the overlapping area of ​​the thickness space of the first magnet 210-1 and the thickness space of the second magnet 210-2 in the vibration direction can be obtained by subtracting the size of the vibration space E of the first vibration part 110-1 from the size of the thickness space of the second magnet 210-2, or by subtracting the size of the vibration space E of the second vibration part 110-2 from the size of the thickness space of the first magnet 210-1. In this case, the formula for calculating the minimum value Hmin of the thickness H of the vibration assembly 10 is as follows: Hmin = 2E + h Where E is the vibration space of the vibrating part in the vibration direction, and h is the size of the overlapping area of ​​the thickness space of the opposite magnet and the thickness space of the same magnet in the vibration direction.

[0091] If the size h of the overlapping region is less than or greater than the difference between the thickness space of the magnet and the vibration space of the corresponding vibrating part, the overall space of the vibration space required by the first vibrating part 110-1 and the thickness space of the first magnet 210-1 in the vibration direction will not completely overlap with the overall space of the vibration space required by the second vibrating part 110-2 in the vibration direction and the thickness space of the second magnet 210-2 in the vibration direction, and the overall space of the vibration space required by the third vibrating part 110-3 in the vibration direction and the thickness space of the third magnet 210-3 in the vibration direction, thereby causing the thickness of the vibrating assembly 10 to increase. L0092J Please refer to Figures 2, 5, and 7. In some embodiments, in a static state, the first vibrating part 110-1 is located within the thickness space G of the second magnet 210-2 in the vibration direction. Correspondingly, for any vibrating part, it can be disposed within the thickness space of the corresponding magnet on the same side. Through the aforementioned arrangement, the thickness of the vibration assembly 10 can be reduced, and the "piezomagnetizing" effect of the magnet on the opposite side can be improved, thereby increasing the magnetic induction intensity of the magnetic field from the opposite magnet at the location of the vibrating part. For example, for the first vibrating part 110-1, through the above arrangement, the piezomagnetizing effect of the second magnet 210-2 on the first magnet 210-1 can be improved, thereby increasing the magnetic induction intensity of the magnetic field from the first magnet 210-1 at the location of the first vibrating part 110-1.

[0093] The design of the position of the vibrating part within the thickness space of the magnet on the same side (for example, the position of the first vibrating part 110-1 within the thickness space G of the second magnet 210-2) requires consideration not only of the vibration space of the vibrating part and the distance between the vibrating part and the magnet on the opposite side, but also of the overlapping area between the magnet on the opposite side and the magnet on the same side. All of these factors will affect the magnetic induction intensity at the vibrating part.

[0094] In some embodiments, in a static state, in the vibration direction, the thickness space G of the second magnet 210-2 includes a staggered region that does not overlap with the thickness space F of the first magnet 210-1. Specifically, in the vibration direction, when the thickness space F of the first magnet 210-1 and the thickness space G of the second magnet 210-2 are just staggered or have a gap, the entire thickness space G of the second magnet 210-2 is a staggered region (e.g., as shown in Figures 3 and 4); in the vibration direction, when there is an overlap between the thickness F of the first magnet 210-1 and the thickness space G of the second magnet 210-2, the region in the thickness space G of the second magnet 210-2 other than the overlapping region is a staggered region (e.g., as shown in Figure 5). In some embodiments, in a static state, in the second direction, the projection of the thickness space G of the second magnet 210-2 includes a staggered portion that does not overlap with the projection of the thickness space F of the first magnet 210-1, and in the vibration direction, the staggered portion corresponds to the staggered region of the thickness space G of the second magnet 210-2.

[0095] In some embodiments, in order to reduce the thickness of the vibration assembly 10 while increasing the magnetic induction intensity at the vibration section, in the static state, the vibration section may be located at 1 / 4 to 3 / 4 of the offset region of the thickness space of the same-side magnet in the vibration direction. Specifically, in the static state, the position of the vibration section in the offset region of the thickness space of the same-side magnet in the vibration direction may be referenced to the end of the offset region of the thickness space of the same-side magnet facing the vibration element 100. As an example only, taking the first vibrating part 110-1 as an example, referring to Figure 5, in the static state, in the vibration direction, the first vibrating part 110-1 is located at 1 / 4 to 3 / 4 of the offset region of the thickness space G of the second magnet 210-2. This means that with the offset region of the thickness space G of the second magnet 210-2 facing the lower side of the vibrating element 100 (or, the corresponding second vibrating part 110-2) as a reference, the ratio of the distance L3 between the first vibrating part 110-1 and the lower side of the thickness space of the second magnet 210-2 in the vibration direction to the offset region of the thickness space G of the second magnet 210-2 is 1 / 4 to 3 / 4.

[0096] In some embodiments, in order to further reduce the thickness of the vibration component 10 and increase the magnetic induction intensity at the vibration part, in the static state, the vibration part is located at 2 / 5-3Z5 of the offset region of the thickness space of the magnet on the same side in the vibration direction.

[0097] In some embodiments, for any vibrating part, in order to enhance the piezomagnetic effect of the same-side magnet on the opposite-side magnet, the distance between the same-side magnet and the opposite-side magnet in the second direction should not be too large. Simultaneously, to avoid the vibrating part colliding with the opposite-side magnet or the same-side magnet during vibration and causing distortion, the distance between the opposite-side magnet and the same-side magnet in the second direction should not be too small. Here, the distance between the opposite-side magnet and the same-side magnet corresponding to this vibrating part is the minimum distance between the opposite-side magnet and the same-side magnet. Taking the first magnet 210-1 and the second magnet 210-2 as examples, please refer to Figures 2, 3, 4, 5, or 7. In some embodiments, the minimum distance between the first magnet 210-1 and the second magnet 210-2 is the distance in the second direction between the end of the first magnet 210-1 facing the second magnet 210-2 and the end of the second magnet 210-2 facing the first magnet 210-1, that is, the distance in the second direction between the end of the first magnet 210-1 with its N pole and the end of the second magnet 210-2 with its N pole, as shown in the figures. In some embodiments, the minimum distance in the second direction between the opposite magnet and the same-side magnet can be the distance in the second direction between the point, edge, or surface of the opposite magnet that is closest to the same-side magnet and the point, edge, or surface of the same-side magnet that is closest to the opposite magnet. For example, referring to Figure 9, the minimum distance in the second direction between the opposing magnet (first magnet 210-1) and the same-side magnet (second magnet 210-2) of the first vibrating part 110-1 can be the distance in the second direction between the right end of the long base (lower base) of the trapezoidal first magnet 210-1 near the second magnet 210-2 and the left end of the long base (upper base) of the trapezoidal second magnet 210-2 near the first magnet 210-1. In some embodiments, the minimum distance in the second direction between the opposing magnet and the same-side magnet can also be defined as the minimum distance in the second direction between the projected outline of the opposing magnet and the projected outline of the same-side magnet on a reference plane perpendicular to the vibration direction. In some embodiments, to increase the magnetic induction intensity at the vibrating part and prevent the vibrating part from colliding with the opposite or same-side magnet during vibration, thus avoiding sound distortion, the minimum distance between the same-side magnet and the adjacent opposite magnet in the second direction is 0.3 nm to 0.6 mm. For example, in the second direction, the minimum distance between the first magnet 210-1 and the second magnet 210-2 is 0.3 mm to 0.6 mm, and the minimum distance between the second magnet 210-2 and the third magnet 210-3 is 0.3 nm to 0.6 mm, etc. In some embodiments, to further increase the magnetic induction intensity at the vibrating part, the minimum distance between the same-side magnet and the adjacent opposite magnet in the second direction can be 0.3 mm to 0.4 mm. In some embodiments, to further prevent the vibrating part from colliding with the opposite or same-side magnet during vibration, thus avoiding sound distortion, the minimum distance between the same-side magnet and the adjacent opposite magnet in the second direction can be 0.4 mm to 0.5 mm.

[0099] In some embodiments, the magnet can be further designed to further improve the magnetic field efficiency of the vibration component 10.

[0100] Figure 8 is a structural schematic diagram of another vibration component according to some embodiments of this specification, and Figure 9 is a structural schematic diagram of another vibration component according to some embodiments of this specification.

[0101] In some embodiments, a reference plane can be defined based on the second direction and the vibration direction. For example, the planes of the paper in Figures 2-5 and 7-9 can all serve as the reference plane. The shape of the magnet can be represented by the profile of the cross-section of at least one magnet (e.g., the first magnet 210-1 and / or the second magnet 210-2) parallel to the reference plane. In some embodiments, the profile includes a first side M1 that approaches the vibration element 100 (e.g., the corresponding vibration part) and a second side M2 ​​that moves away from the vibration element (e.g., the corresponding vibration part). In the second direction, the length of the first side M1 is less than the length of the second side M2. This arrangement increases the minimum distance between two adjacent magnets located on both sides of the vibration element 100, which helps to reduce the possibility of collision between the vibration element 100 and the magnets. As an example only, please refer to Figures 8 or 9. The profile of the first magnet 210-1 in a cross-section parallel to the reference plane includes a first side M1 close to the first vibrating part 110-1 and a second side M2 ​​away from the first vibrating part 110-1. In a second direction, the length of the first side M1 is less than the length of the second side M2. And / or, the profile of the second magnet 210-2 in a cross-section parallel to the reference plane includes a first side M1 close to the second vibrating part 110-2 and a second side M2 ​​away from the first vibrating part 110-1. In a second direction, the length of the first side M1 is less than the length of the second side M2. In some embodiments, the shape of the magnet can be a regular shape. For example, the shape of the profile of at least one of the plurality of magnets (e.g., the first magnet 210-1 and / or the second magnet 210-2) in a cross-section parallel to the reference plane can be a rounded rectangle (as shown in Figure 8) or a trapezoid (as shown in Figure 9).

[0103] Referring to Figure 8, the cross-section of each magnet (e.g., the first magnet 210-1, the second magnet 210-2, the third magnet 210-3, and the fourth magnet 210-3) parallel to the reference plane can be a rounded rectangle. The two corners of each magnet closest to its adjacent magnet have a chamfered structure, exhibiting a rounded corner with a certain arc. In the cross-section parallel to the reference plane, the rounded corners on each magnet are the two corners on the side of the magnet facing the corresponding vibrating part 110. In some embodiments, the cross-section of the magnet parallel to the reference plane can be a rounded rectangle with all four corners rounded.

[0104] Referring to Figure 9, the cross-section of each magnet (e.g., the first magnet 210-1, the second magnet 210-2, the third magnet 210-3, and the fourth magnet 210-3) parallel to the reference plane can be trapezoidal. In the cross-section parallel to the reference plane, the upper base (the shorter parallel side) of the trapezoidal cross-section of each magnet faces the corresponding vibrating part, while the lower base (the longer parallel side) faces away from the corresponding vibrating part.

[0105] Figure 10 is a schematic diagram of another vibration component according to some embodiments of this specification; Figure 11 is a schematic diagram of another vibration component according to some embodiments of this specification; Figure 12 is a schematic diagram of the arrangement of magnets according to some embodiments of this specification; Figure 13 is a schematic diagram of another vibration component according to some embodiments of this specification; Figure 14 is a schematic diagram of another vibration component according to some embodiments of this specification; Figure 15 is a schematic diagram of another vibration component according to some embodiments of this specification; Figure 16 is a schematic diagram of another vibration component according to some embodiments of this specification; and Figure 17 is a schematic diagram of another vibration component according to some embodiments of this specification. L0106J In some embodiments, the shape of the plurality of magnets can be a ring cylinder or a cuboid to accommodate vibration components 10 with different configurations.

[0107] Referring to Figure 10, in some embodiments, the magnets (e.g., the first magnet 210-1, the second magnet 210-2, the third magnet 210-3, the fourth magnet 210-4, etc.) can be in the shape of annular cylinders. The diameters of the magnets in each annular cylinder are different, and the magnets in the annular cylinders with larger diameters can be fitted over the magnets in the annular cylinders with smaller diameters 210. For example, as shown in Figure 10, the first magnet 210-1 and the third magnet 210-3 are located on the same side of the vibrating element 100, while the second magnet 210-2 and the fourth magnet 210-4 are located on the other side of the vibrating element 100. The diameters of the first magnet 210-1, the second magnet 210-2, the third magnet 210-3, and the fourth magnet 210-4 gradually decrease. The third magnet 210-3 is fitted outside the fourth magnet 210-4, the second magnet 210-2 is fitted outside the third magnet 210-3, and the first magnet 210-1 is fitted outside the second magnet 210-2. The annular body is equipped with multiple magnets, making the magnetic flux density of the vibrating assembly 10 more concentrated, thereby improving the output performance of the vibrating assembly 10. "0108" Please refer to Figures 11 to 15. In some embodiments, the magnets (e.g., the first magnet 210-1, the second magnet 210-2, the third magnet 210-3, etc.) can be rectangular prisms, and the rectangular prism magnets can be arranged in a variety of ways.

[0109] In some embodiments, the parameters of the cuboid magnets may all be the same, as shown in FIG11, where multiple magnets are staggered on both sides of the vibrating element 100 in the vibration direction. In some embodiments, the parameters of some of the multiple magnets may be the same, as shown in FIG13, where multiple magnets are staggered on both sides of the vibrating element 100 in the vibration direction, and the magnets located on the same side of the vibrating element 100 have the same parameters.

[0110] Referring to Figures 11 and 13, in some embodiments, the plurality of rectangular magnets in the vibration assembly 10 can be arranged along the second direction as shown in Figures 11 and 13. Referring to Figure 12, in some embodiments, the plurality of rectangular magnets can also be arranged in a U-shape.

[0111] In some embodiments, the magnets in the vibration assembly 10 may have different sizes. For example, as shown in FIG14, the vibration assembly 10 includes three rectangular magnets of different sizes. As another example, as shown in FIG10, the vibration assembly 10 includes four annular cylindrical magnets of different diameters. L0112J In some embodiments, the multiple magnets in the vibration assembly 10 may be of the same size, thereby reducing the types of magnets in the vibration assembly 10 and facilitating the manufacturing of the vibration assembly 10. For example, as shown in FIG15, the vibration assembly 10 includes six rectangular magnets of the same size.

[0113] Referring to Figure 2, in some embodiments, the vibrating element 100 may further include a third vibrating part 110-3 and a second connecting part 120-2. The third vibrating part 110-3 is connected to the second vibrating part 110-2 via the second connecting part 120-2. The plurality of magnets also includes a third magnet 210-3, which is arranged at intervals with the third vibrating part 110-3 in the vibration direction. By providing multiple vibrating parts, the driving force of the vibrating element 100 is increased, thereby enhancing the output of the vibrating assembly 10. In some embodiments, L0114J, in the vibration direction, the third magnet 210-3 and the first magnet 210-1 are located on the same side of the vibration element 100, and the magnetization direction of the third magnet 210-3 is the same as that of the first magnet 210-1. For the first vibration section 110-1, which is located in the magnetic field B of the first magnet 21CM on the opposite side, the second magnet 210-2 on the same side of the first vibration section 110-1 will magnetize the first magnet 210-1 on the opposite side, thereby increasing the magnetic induction intensity at the first vibration section 110-1. The second vibration section 110-2 is located in the magnetic field B of the second magnet 210-2 on the opposite side. The first magnet 210-1 and the third magnet 210-3 on the same side of the second vibration section 110-2 will magnetize the second magnet 210-2 on the opposite side. At the same time, the second vibration section 110-2 can also be located in the magnetic field A formed by the first magnet 210-1 and the third magnet 210-3 on the same side, and the magnetic field A and the magnetic field B are in the same direction at the second vibration section 110-2, thereby further enhancing the magnetic induction intensity at the second vibration section 110-2. By setting multiple vibration sections, the driving force of the vibration element 100 is increased, and the output of the vibration assembly 10 is improved.

[0115] Figure 16 is a structural schematic diagram of another vibration component according to some embodiments of this specification.

[0116] Referring to Figure 16, in some embodiments, in the vibration direction, the third magnet 210-3 and the second magnet 210-2 are located on the same side of the vibrating element 100, and the magnetization direction of the third magnet 210-3 is the same as that of the first magnet 210-1. The second vibrating part 110-2 is in the magnetic field formed by the second magnet 210-2 on the opposite side. The first magnet 210-1 on the same side of the second vibrating part 110-2 will magnetize the second magnet 210-2, thereby increasing the magnetic induction intensity at the second vibrating part 110-2 and the third vibrating part 110-3. The third vibrating part 110-3 is in the magnetic field formed by the third magnet 210-3 on the opposite side. When the vibration element 100 further includes a fourth vibration section 110-4 and a fourth magnet 210-4, the fourth magnet 210-4 and the first magnet 210-1 can be located on the same side of the vibration element 100. The magnetization direction of the fourth magnet 210-4 is the same as that of the second magnet 210-2. The fourth magnet 210-4 can magnetize the third magnet 210-3, thereby increasing the magnetic induction intensity at the third vibration section 110-3. Furthermore, the opposite magnetization directions of the second magnet 210-2 and the third magnet 210-3 allow their magnetic fields to repel each other, further enhancing the magnetic fields at the corresponding vibration sections.

[0117] By using different configurations of the aforementioned third vibration part 110-3 and the corresponding third magnet 210-3, the arrangement of multiple magnets can be adjusted more flexibly, thereby allowing the vibration assembly 10 to be designed as needed (e.g., to avoid structural obstacles), while increasing the magnetic induction intensity at the location of the corresponding vibration part.

[0118] Figure 17 is a structural schematic diagram of another vibration component according to some embodiments of this specification. As shown in Figure 17, in some embodiments, no vibrating section is arranged between two adjacent magnets located on the same side of the vibrating element 100. Referring to Figure 17, the vibrating assembly 10 includes a first magnet 210-E, a second magnet 210-2, a third magnet 210-3, and a fourth magnet 210-4. The vibrating element 100 includes a first vibrating section 110-1 and a second vibrating section 110-2. The first vibrating section 110-1 and the second vibrating section 110-2 are connected by a first connecting section 120-1. The first connecting section 120-1 includes a portion parallel to the vibration direction and a portion parallel to the second direction, so that the first connecting section 120 can bypass a portion of the magnet (e.g., the third magnet 210-3) and connect two vibrating sections (e.g., the first vibrating section 110-1 and the second vibrating section 110-2) located on both sides of the magnet along the second direction, so that the positions of two adjacent vibrating sections in the vibration direction approximately coincide in the second direction. The first vibrating part 110-1 and the second magnet 210-2 are arranged at intervals in the vibration direction, and the second vibrating part 110-2 and the fourth magnet 210-4 are arranged at intervals in the vibration direction.

[0120] The first magnet 210-1 and the third magnet 210-3 can magnetize the second magnet 210-2, increasing the magnetic induction intensity of the second magnet 210-2 at the first vibration 110-1. Simultaneously, the first vibration part 110-1 is also within the magnetic field formed by the first magnet 210-1 and the third magnet 210-3, further increasing the magnetic induction intensity at the first vibration part 110-1. The third magnet 210-3 can magnetize the fourth magnet 210-4, increasing the magnetic induction intensity of the fourth magnet 210-4 at the second vibration part 110-2. Through the aforementioned arrangement, the driving force of the vibration element 100 can be increased, improving the output performance of the vibration assembly 10.

[0121] Figure 18 is a structural schematic diagram of another vibration component according to some embodiments of this specification. Referring to Figures 8, 9, and 18, in some embodiments, the connecting portions of the vibrating element 100 (e.g., the first connecting portion 120-1, the second connecting portion 120-2, etc.) are inclined relative to both the vibration direction and the second direction. By designing the connecting portions to be inclined, the production and installation difficulty of the vibrating element 100 can be simplified, the stability of the vibrating element 100 can be improved, and the skewing of the vibrating element 100 can be avoided. On the other hand, when the vibrating element 100 also includes a voice coil, the inclined arrangement of the connecting portions can also prevent the voice coil from breaking due to excessive bending angle when extending through the connecting portions to adjacent vibrating portions. Furthermore, as shown in Figure 18, point Q is the position of minimum distance between the inclined first connecting part 120-1 and the magnets (first magnet 210-1 and second magnet 210-2) on both sides of the first connecting part 120-1. The greater the distance between the other positions in the inclined first connecting part 120-1 and point Q, the greater the distance between that position and the magnets (first magnet 210-1 and second magnet 210-2) on both sides of the first connecting part 120-1. This can reduce the probability of the first connecting part 120-1 colliding with the magnets on both sides, and ensure the normal sound output of the vibration assembly 10.

[0123] Figure 19 is a structural schematic diagram of another vibration component according to some embodiments of this specification.

[0124] Referring to Figure 19, in some embodiments, the connection between the connecting portion and the corresponding vibrating portion can be a rounded transition to improve the stability of the connection between the connecting portion and the corresponding vibrating portion. For example, the connection between the first connecting portion 120-1 and the first vibrating portion 110-1, and the connection between the first connecting portion 120-1 and the second vibrating portion 110-2, can both be rounded transitions. When the vibrating element 100 also includes a voice coil, the rounded transition at the connection between the connecting portion and the corresponding vibrating portion can also prevent the voice coil from breaking due to excessive bending angle when extending through the connecting portion to the adjacent vibrating portion.

[0125] In some embodiments, the connecting portion (e.g., the first connecting portion 120-1) of the vibration element 100 may also be provided with a reinforcing member to increase the stiffness of the connecting portion, reduce the deformation of the connecting portion, improve the vibration consistency of the two vibration portions at both ends of the connecting portion, and improve the vibration stability of the vibration element 100.

[0126] In some embodiments, the Young's modulus of the material of the connecting portion of the vibration element 100 can be greater than the Young's modulus of the materials of the vibration portions at both ends of the connecting portion. For example, the Young's modulus of the material of the first connecting portion 120-1 can be greater than the Young's modulus of the materials of the first vibration portion 110-1 and the second vibration portion 110-2. By designing the materials of the connecting portion and the vibration portion, the deformation capacity of the connecting portion is made weaker than that of the vibration portion, thereby reducing the deformation of the connecting portion, improving the vibration consistency of the two vibration portions at both ends of the connecting portion, and improving the vibration stability of the vibration element 100.

[0127] Referring to Figures 1 and 2, in some embodiments, the vibrating element 100 includes a support portion 101 and a voice coil 102. The voice coil 102 includes a first voice coil portion 102k disposed on the support portion 101. The support portion 102, as the main part of the vibrating element, can vibrate under the drive of the first voice coil portion 102k. The connecting portion can be connected to the vibrating element via the support portion 101. In some embodiments, the support portion 101 can be made of a lightweight, flexible material. For example, the support portion 101 can be made of one or more of paper, polypropylene, metal, composite materials, etc. Preferably, in some embodiments, the support portion 101 can be a diaphragm. The voice coil 102 can be connected to an external current. The voice coil 102 can be a lightweight conductive material (e.g., copper, aluminum, graphene, flexible circuit board, etc.) and is disposed on the vibrating element (support portion 101) and the connecting portion by electroplating, printing, bonding, or other means. In some embodiments, L0128J, the voice coil 102 may further include a second voice coil portion 1022. Two first voice coil portions 1021 on the two vibrating portions at either end of any connecting portion can be connected by a second voice coil portion 1022. This second voice coil portion 1022 can be disposed on the connecting portion or on the transition portion 103 of the vibrating element 100. For example, both the first vibrating portion 110-1 and the second vibrating portion 110-2 include a support portion 101 and a first voice coil portion 1021 fixed to the support portion 101. The two first voice coil portions 1021 are connected by a second voice coil portion 1022 disposed on the first connecting portion 120-1.

[0129] The second voice coil portion 1022 is used to provide current to the first voice coil portion 1021. In some embodiments, the second voice coil portion 1022 can conduct current between the two first voice coil portions 1021, realizing the series connection of the two first voice coil portions 1021. In some embodiments, the second voice coil portion 1022 can be connected between the first voice coil portion 1021 and an external current, realizing the parallel connection of the two first voice coil portions 1021. In some embodiments, the first voice coil portion 1021 disposed on the support portion 101 serves as part of the vibrating portion. When an external current is applied, the first voice coil portion 1021 can be driven by a magnetic field to vibrate, thereby causing the vibrating portion to vibrate. One or more conductive materials located on the same vibrating portion and with the same current flow direction and close position belong to the same first voice coil portion 1021.

[0131] In some embodiments, each vibrating part includes at least one first voice coil portion 1021 to ensure that the corresponding vibrating part can vibrate under the drive of the first voice coil portion 1021. The configuration of the first voice coil portion 1021 in each vibrating part (e.g., circuit layout, current direction of the first voice coil portion 1021, number of first voice coil portions 1021, etc.) can be the same or different.

[0132] It should be noted that each first voice coil portion 1021 in the vibrating section can correspond to the opposite magnet of that vibrating section. That is, in the second direction, the first voice coil portion 1021 and the corresponding magnet at least partially overlap, so that the first voice coil portion 1021 is located in the magnetic field formed by the corresponding opposite magnet. Alternatively, in the second direction, the projection of the first voice coil portion 1021 and the projection of the corresponding magnet at least partially overlap. For example, the first vibrating section 110-1 shown in FIG2 includes the first voice coil portion 1021, and the opposite magnet of the first vibrating section HCM includes the first magnet 210-1, with the first voice coil portion 1021 corresponding to the first magnet 210-1. When the vibrating section 110 includes multiple first voice coil portions 1021, the current flows in opposite directions in two adjacent first voice coil portions 1021 along the second direction, and the magnetic poles of the two opposite magnets corresponding to the aforementioned two adjacent first voice coil portions 1021 are arranged in opposite directions to ensure that the movement trend of each position on the vibrating section is the same.

[0133] Figure 20A is a structural schematic diagram of a vibration element according to some embodiments of this specification. Figure 20B is another structural schematic diagram of the vibration element shown in Figure 20A. Figure 21A is another structural schematic diagram of a vibration element according to some embodiments of this specification. Figure 21B is another structural schematic diagram of the vibration element shown in Figure 21A. Figure 22A is another structural schematic diagram of a vibration element according to some embodiments of this specification. Figure 22B is another structural schematic diagram of the vibration element shown in Figure 22A.

[0134] In some embodiments, as shown in Figures 20A, 20B, 21A, and 21B, wiring (e.g., copper wire, aluminum wire, etc.) can be laid on the support portion 101 and the connecting portion of the vibrating part to obtain the voice coil 102. In some embodiments, as shown in Figures 22A and 22B, a flexible circuit board can be laid on the support portion 101 and the connecting portion of the vibrating part to obtain the voice coil 102, thereby reducing the assembly difficulty of the vibration assembly 10. Figure 23A is a structural schematic diagram of a vibration element according to some embodiments of this specification; Figure 23B is a structural schematic diagram of a vibration assembly provided with the vibration element shown in Figure 23A; Figure 24A is a structural schematic diagram of a vibration element according to some embodiments of this specification; and Figure 24B is a structural schematic diagram of a vibration assembly provided with the vibration element shown in Figure 24A.

[0136] Referring to Figures 2 to 24B, in some embodiments, the vibrating element 100 may further include a transition portion 103. The transition portion 103, as part of the vibrating element 100, can fix the vibrating element 100 to other support structures (e.g., support members). In some embodiments, as shown in Figures 23B and 24B, a support member is provided on the vibrating assembly 10, and a transition portion 103 is provided between the vibrating element 100 and the support member. L0137J The second voice coil portion 1022 between adjacent first voice coil portions 1021 can be configured in various ways. In some embodiments, as shown in Figures 20A and 20B, the second voice coil portion 1022 between adjacent first voice coil portions 1021 can be directly disposed on the connecting portion between adjacent first voice coil portions 1021 to reduce the length of the voice coil 102 and reduce costs. For example, as shown in Figures 21A and 21B, the second voice coil portion 1022 between adjacent first voice coil portions 1021 can also extend to the transition portion 103, thereby reducing the degree of bending of the voice coil 102 and reducing the risk of damage to the voice coil 102. For another example, the second voice coil portion 1022 can also be disposed on the transition portion 103.

[0138] In some embodiments, the voice coil 102 can be a single-layer voice coil or a multi-layer voice coil. For example, the voice coil 102 is a single-layer voice coil disposed on one side of the support portion 101. Another example is that the voice coil 102 is a single-layer voice coil disposed through the support portion 101. Yet another example is that the voice coil 102 can be a double-layer voice coil, which can be disposed on both sides of the support portion 101, or overlapped on one side of the support portion 101.

[0139] In some embodiments, the support portion 101 in the vibrating element 100 can have various shapes. For example, as shown in Figures 23A and 24A, the support portion 101 can be rectangular. As another example, as shown in Figure 20A, the support portion 101 can be circular.

[0140] In some embodiments, the support portion 101 can be die-cast in various ways. For example, the support portion 101 shown in FIG. 23A can be die-cast by two layers of staggered die-casting parts, the two layers of die-casting parts being die-cast in opposite directions along the vibration direction, and the die-casting depth of each row of die-casting parts being half of the vibration space of the vibrating part along the vibration direction. As another example, the support portion 101 shown in FIG. 24A can be die-cast by a row of spaced-apart die-casting parts, the row of die-casting parts being die-cast in one direction along the vibration direction, and the die-casting depth of the row of die-casting parts being the vibration space of the vibrating part along the vibration direction. In some embodiments, the support portion 101 can also be formed by heating and vacuum forming. After heating the sheet to a softened state, a vacuum is drawn through one side of the mold, and atmospheric pressure is used to press the softened sheet onto the mold surface. After cooling, a support portion 101 with a shape consistent with the mold is obtained. Corresponding to L0141J, the installation methods of the support portion 101 obtained by different die-casting methods are different in the vibration assembly 10. For example, the installation method of the support portion 101 shown in FIG23A is shown in FIG23B. As another example, the installation method of the support portion 101 shown in FIG24A is shown in FIG24B.

[0142] In some embodiments, the second elastic portion 1012 between two adjacent first elastic portions 1011 along the second direction in the support portion 101 can be provided in a variety of ways.

[0143] In some embodiments, the first elastic portion 1011 may be arranged parallel to the second direction, and the second elastic portion 1012 may be arranged parallel to the vibration direction. Two adjacent first elastic portions 1011 along the second direction can be connected by the second elastic portion 1012 arranged parallel to the vibration direction. For example, as shown in FIG23A, the support portion 101 may include a first elastic portion 1011 arranged parallel to the second direction and a second elastic portion 1012 arranged parallel to the vibration direction, and two adjacent first elastic portions 1011 along the second direction can be connected by the second elastic portion 1012 arranged parallel to the vibration direction.

[0144] Figure 25 is an exemplary block diagram of a loudspeaker according to some embodiments of this specification, and Figure 26 is a structural schematic diagram of a loudspeaker according to some embodiments of this specification.

[0145] Some embodiments of this specification also provide a loudspeaker 20. As shown in FIG25, the loudspeaker 20 may include a housing 30 and at least one vibration component 10. More details about any one of the vibration components 10 can be found in the relevant description above in this specification.

[0146] For example, at least one of the vibration components 10 of the loudspeaker 20 includes a plurality of magnets. In the vibration direction of the vibration element 100, the plurality of magnets includes a first side magnet and a second side magnet distributed on both sides of the vibration element 100. In the vibration direction, the projections of the first side magnet and the second side magnet are staggered. That is, in the second direction, any magnet of the first side magnet and any magnet of the second side magnet are staggered.

[0147] The vibration element 100 of any one of the vibration components 10 in the loudspeaker 20 includes a plurality of vibration sections. In a second direction perpendicular to the vibration direction, the projections of any two adjacent vibration sections are staggered, and the projection of the vibration space of at least one of the vibration sections at least partially overlaps with the projection of the thickness space of at least one of the magnets. That is, in the vibration direction, any two adjacent vibration sections are staggered and located at different heights in the vibration direction; in the vibration direction, the vibration space of at least one of the vibration sections at least partially overlaps with the thickness space of at least one of the magnets.

[0148] The housing 30 has a hollow cavity inside, and at least one vibration component 10 is housed in the hollow cavity. The shape of the housing 30 can be circular, elliptical, racetrack-shaped, quadrilateral, pentagonal, hexagonal, octagonal, or other polygonal shapes.

[0149] In some embodiments, the housing 30 can serve as a support member in at least one vibration assembly 10, supporting the various components in the at least one vibration assembly 10. For example, as shown in FIG26, the housing 30 can serve as a support member to support the various components in the vibration assembly 10.

[0150] Referring to Figure 26, in some embodiments, the loudspeaker 20 may include a vibration assembly 10, that is, the number of at least one vibration assembly 10 may be one. The vibration element 100 in the vibration assembly 10 divides the hollow cavity within the housing 30 into a first cavity 301 and a second cavity 302. The housing 30 is provided with a first sound outlet 304 acoustically coupled to the first cavity 301 and a second sound outlet 305 acoustically coupled to the second cavity 302. The first cavity 301 outputs sound through the first sound outlet 304, and the second cavity 302 outputs sound through the second sound outlet 305.

[0151] In some embodiments, the sound output from the first sound outlet 304 and the sound output from the second sound outlet 305 can be designed so that the sound output from the first sound outlet 304 and the sound output from the second sound outlet 305 have more similar amplitudes and opposite phases in a wider frequency range. This helps to construct a directional acoustic dipole from the sound output from the two sound outlets in a wider frequency range, resulting in greater sound intensity in the target direction (e.g., the direction of the user's ear canal) and less sound leakage in other directions. This makes the speaker suitable for the needs of acoustic output devices (e.g., headphones) for sound leakage reduction and active noise cancellation.

[0152] In some embodiments, in the vibration direction, among the plurality of magnets included in the vibration assembly 10, the number of magnets located on one side of the vibration element 100 is the same as the number of magnets located on the other side of the vibration element 100, so that the vibration amplitude of the vibration element 100 in the upward direction of vibration is close to the vibration amplitude in the downward direction of vibration, so that the amplitude of the sound output from the cavities on both sides of the vibration element 100 is close. In some embodiments, the magnetization directions of magnets located on the same side of the vibration element 100 are the same in the vibration direction, so as to enhance the magnetic induction intensity at the location of the vibration part of the vibration element 100, improve the dynamic range of the vibration element 100, and improve the output performance of the vibration assembly 10.

[0154] In some embodiments, there is a difference between the resonant frequency of the first cavity 301 and the resonant frequency of the second cavity 302, and the ratio of this difference to the resonant frequency of the first cavity 301 is 15%-25%. This ensures that the sound output from the first cavity 301 through the first sound outlet 304 and the sound output from the second cavity 302 through the second sound outlet 305 have more similar amplitudes and opposite phases over a wider frequency range, thereby improving the sound leakage reduction and active noise cancellation effect of the speaker 20. For example, the ratio of this difference to the resonant frequency of the first cavity 301 can be 20%. In other embodiments, the ratio of this difference to the resonant frequency of the second cavity 302 can also be 15%-25%.

[0155] In some embodiments, the first cavity 301 and the first sound outlet 304 constitute a Helmholtz cavity model, and the second cavity 302 and the second sound outlet 305 also constitute a Helmholtz cavity model. In the Helmholtz cavity model, the volume of the cavity, as well as the size and depth of the opening, all affect the resonant frequency of the Helmholtz cavity. To make the resonant frequency of the first cavity 301 close to or the same as the resonant frequency of the second cavity 302, the volume of the first cavity 301 can be the same as the volume of the second cavity 302, the diameter of the first sound outlet 304 can be the same as the diameter of the second sound outlet 305, and the opening depth of the first sound outlet 304 can be the same as the opening depth of the second sound outlet 305.

[0156] Figure 27 is a structural schematic diagram of another loudspeaker according to some embodiments of this specification, and Figure 28 is a structural schematic diagram of another loudspeaker according to some embodiments of this specification.

[0157] Please refer to Figures 27 and 28. In some embodiments, the number of at least one vibration component 10 can be two. The loudspeaker 20 may include two vibration components 10, namely a first vibration component 10-1 and a second vibration component 10-2. The relevant settings of the two vibration components 10 can be referred to the relevant content of the vibration component 10 mentioned in Figure 25 above, and will not be repeated here.

[0158] In the vibration direction, the first vibration component 10-1 and the second vibration component 10-2 are arranged at intervals. The first vibration component 10-1 forms a first cavity 301 between itself and the inner wall opposite to the housing 30. The second vibration component 10-2 forms a second cavity 302 between itself and the other side wall opposite to the housing 30. The first vibration component 10-1 and the second vibration component 10-2 form a third cavity 303. The housing 30 is provided with a first sound outlet 304 acoustically coupled to the first cavity 301, a second sound outlet 305 acoustically coupled to the second cavity 302, and a third sound outlet 306 acoustically coupled to the third cavity 303. The first cavity 301 outputs sound through the first sound outlet 304, the second cavity 302 outputs sound through the second sound outlet 305, and the third cavity 303 outputs sound through the third sound outlet 306. In some embodiments, the second cavity 302 is connected to the external environment through the second sound outlet 305, thereby balancing the air pressure inside and outside the housing 30; the third cavity 303 is connected to the external environment through the third sound outlet 306, thereby balancing the air pressure inside and outside the housing 30. It is understood that the number of vibration components 10 affects the number of third cavities 303. For example, when the number of vibration components 10 is 2, the number of intermediate cavities 303 is 1. As another example, when the number of vibration components 10 is 3, the number of third cavities 303 is 2.

[0159] In some embodiments, when the loudspeaker 20 includes multiple vibrating components 10, the vibrating elements in two adjacent vibrating components 10 along the vibration direction compress the air in the intermediate third cavity 303 during vibration, thereby giving the loudspeaker 20 a higher sound pressure level and improving its acoustic output capability. Furthermore, the magnets in the multiple vibrating components 10 can correspondingly influence and increase the magnetic induction intensity at the location of each vibrating part in the loudspeaker 20, resulting in higher output from the vibrating components 10.

[0160] In some embodiments, in order to make the sound output from the first cavity 301 through the first sound outlet 304 and the sound output from the second cavity 302 through the second sound outlet 305 have similar amplitudes and opposite phases over a wider frequency range, the first vibration component 10-1 and the second vibration component 10-2 should have similar or opposite vibration modes as much as possible. For example, the number of magnets in the first vibration component 10-1 and the number of magnets in the second vibration component 10-2 can be the same, so that the vibration amplitude of the first vibration component 10-1 is similar to or the same as the vibration amplitude of the second vibration component 10-2, and the amplitudes of the sounds output from the first cavity 301 and the second cavity 303 are close.

[0161] In some embodiments, for the first vibration component 10-1 and / or the second vibration component 10-2, the number of magnets located on one side of the vibration element 100 is the same as the number of magnets located on the other side of the vibration element 100 in the vibration direction, so as to make the vibration of the vibration element 100 more stable, and so that the sound amplitude generated by the first vibration component 10-1 in the first cavity 301 is similar to or the same as the sound amplitude generated by the second vibration component 10-2 in the second cavity 302.

[0162] In some embodiments, for the first vibration component 10-1 and / or the second vibration component 10-2, the magnetization directions of the magnets located on the same side of the vibration element 100 are the same in the vibration direction, so as to enhance the magnetic induction intensity at the location of the vibration part of the vibration element 100, increase the driving force of the vibration element 100, and improve the output performance of the corresponding vibration component 10.

[0163] In some embodiments, in the vibration direction, the projection of the magnet of the first vibration component 10-1 overlaps with the projection of the magnet of the second vibration component 10-2, and the projection of the vibrating part of the first vibration component 10-1 overlaps with the projection of the vibrating part of the second vibration component 10-2. This results in the vibration modes of the vibrating element of the first vibration component 10-1 being similar to or the same as the vibration modes of the second vibration component 10-2. Consequently, the sound generated by the first vibration component 10-1 in the first cavity 301 and the sound generated by the second vibration component 10-2 in the second cavity 302 have more similar amplitudes and opposite phases over a wider frequency range. In some embodiments, in the second direction, the magnet of the first vibration component 10-1 overlaps with the magnet of the second vibration component 10-2, and the vibrating part of the first vibration component 10-1 overlaps with the vibrating part of the second vibration component 10-2. That is, the magnets of the two vibration components are located at the same position in the second direction, and the vibrating parts of the two vibration components are located at the same position in the second direction. Referring to Figure 27, in some embodiments, for the vibrating portions of the first vibration component 10-1 and the second vibration component 10-2 whose projections overlap in the vibration direction, a magnet of the first vibration component 10-1 or a magnet of the second vibration component 10-2 is provided between the vibrating portions of the first vibration component 10-1 and the corresponding vibrating portions of the second vibration component 10-2 in the vibration direction. That is, only one magnet is provided between the two vibrating portions corresponding to two adjacent vibration components 10. In some embodiments, the structure of the first vibration component 10-1 can be the same as the structure of the second vibration component 10-2, and the first vibration component 10-1 can be obtained by translating the second vibration component 10-2 along the vibration direction. At this time, the vibrating elements 100 in the multiple vibrating components 10 (e.g., two vibrating components 10) vibrate in the same direction. The multiple vibrating components 10 (e.g., two vibrating components 10) not only compress the air in the first cavity 301 and the second cavity 302, but also compress the air in at least one third cavity 303, thereby increasing the sound pressure level of the loudspeaker 20 and enhancing the acoustic output capability of the loudspeaker 20.

[0165] Referring to Figure 28, in some embodiments, for the vibrating portions of the first vibration component 10-1 and the second vibration component 10-2 whose projections overlap in the vibration direction, a magnet of the first vibration component 10-1 and a magnet of the second vibration component 10-2 are provided between the vibrating portions of the first vibration component 10-1 and the corresponding vibrating portions of the second vibration component 10-2 in the vibration direction, or no magnet is provided. That is, between the two vibrating portions corresponding to two adjacent vibration components 10, a magnet of the first vibration component 10-1 and a magnet of the second vibration component 10-2 are provided simultaneously, or no magnet is provided. In some embodiments, the first vibration component 10-1 may be arranged axially symmetrically with the second vibration component 10-2. In some embodiments, the first vibration component 10-1 and the second vibration component 10-2 are vertically symmetrical along the axis of symmetry K, wherein the axis of symmetry K is parallel to the second direction. When multiple vibration components 10 (e.g., two vibration components 10) are symmetrically arranged, the vibrating elements in the multiple vibration components 10 (e.g., two vibration components 10) vibrate in opposite directions. These multiple vibration components 10 (e.g., two vibration components 10) not only compress the air in the first cavity 301 and the second cavity 302, but the two vibrating elements 100 in adjacent vibration components 10 also simultaneously compress the air in the third cavity 303 between them. This further increases the sound pressure level of the loudspeaker 20 and enhances its acoustic output capability. Therefore, when it is necessary to increase the sound pressure level of the loudspeaker 20 and enhance its acoustic output capability, multiple symmetrically arranged vibration components 10 can be provided in the loudspeaker 20.

[0166] In some embodiments, in order to increase the magnetic induction intensity at the location of each vibrating part in the loudspeaker 20, the minimum distance between adjacent vibrating components 10 along the vibration direction can be reduced. Specifically, the minimum distance between adjacent vibrating components 10 along the vibration direction is the distance in the vibration direction between the lowermost point or surface of the vibrating component 10 located above the vibration direction and the uppermost point or surface of the vibrating component 10 located below the vibration direction. In some embodiments, the minimum distance between adjacent vibration components 10 along the vibration direction is not less than 0, so as to avoid the vibration elements in adjacent vibration components 10 along the vibration direction from colliding and producing noise during vibration.

[0168] Figure 29 is a graph showing the relationship between the overlapping region size of different loudspeakers and the average value of the magnetic induction intensity of the vibrating part according to some embodiments of this specification. Similar to Figure 6, in the horizontal axis of the coordinate system shown in Figure 29, the absolute value of the negative number represents the size of the overlapping region between the thickness space of the first magnet 210-1 and the thickness space of the second magnet 210-2 in the vibration direction, that is, the absolute value of the negative number represents the size of the overlapping region between the magnet on the same side and the magnet on the opposite side in the vibration direction. The size h of the overlapping region is negative, which is the negative number in the horizontal axis shown in Figure 29. L0169J Please refer to Figure 29. The horizontal axis is in units of X, and the vertical axis (average value of the magnetic induction intensity of the vibrating part) is in units of Bo. X and Bo are pre-specified unit values. For example, X can be 2 mm, and Bo can be 3 T. Qi is the curve of a single vibrating component 10 (e.g., the first vibrating component 10-1 or the second vibrating component 10-2) shown in Figure 27 in the aforementioned variation diagram. Q2 is the curve of the loudspeaker 20 shown in Figure 27 in the aforementioned variation diagram. Q3 is the curve of the loudspeaker 20 shown in Figure 28 in the aforementioned variation diagram. The vibrating component 10 represented by Qi is identical to the two vibrating components 10 in the loudspeaker 20 shown in Figure 27. One vibrating component 10 in the loudspeaker 20 shown in Figure 28 is identical to the vibrating component shown in Figure 3. The other vibrating component 10 in the loudspeaker 20 shown in Figure 28 is symmetrical to the vibrating component 10 represented by Qi. As can be seen from Figure 29 (L0170J), when the horizontal axis is the same, the average value of the magnetic induction intensity shown by Q3 and Q2 is greater than the average value of the magnetic induction intensity shown by Qi. For example, when the horizontal axis is -0.35X, the average values ​​of the magnetic induction intensity represented by QL, QZ, and Q3 are 0.392Bo, 0.548Bo, and 0.529B, respectively. As discussed earlier, when multiple vibration components 10 are provided in the speaker 20, the magnets in the multiple vibration components 10 can influence each other, thereby increasing the magnetic induction intensity at the location of each vibration part in the speaker 20. Therefore, when the horizontal axis is the same, the average value of the magnetic induction intensity shown by Q2 is greater than the average value of the magnetic induction intensity shown by Q3.

[0171] Furthermore, in the loudspeaker 20 shown in Figure 27, represented by Q2, the magnet located below the vibrating element 100 in the first vibration assembly 10-1 in the vibration direction also provides a magnetic field to the vibrating portion of the vibrating element 100 of the second vibration assembly 10-2 that overlaps with the magnet in the second direction, indirectly strengthening the magnetic induction intensity at the vibrating portion of the vibrating element 100 of the second vibration assembly 10-2. In Q3, because the distance between the magnet located below the vibrating element 100 in the first vibration assembly 10-1 and the vibrating portion of the vibrating element 100 of the second vibration assembly 10-2 that overlaps with the magnet in the second direction is too large, the contribution of the magnet located below the vibrating element 100 in the first vibration assembly 10-1 to the magnetic field at the vibrating portion of the vibrating element 100 of the second vibration assembly 10-2 that overlaps with the magnet in the second direction is limited. Therefore, with the same horizontal axis, the average value of the magnetic induction intensity shown in Q2 will be greater than the average value of the magnetic induction intensity shown in Q3. Therefore, when it is necessary to increase the magnetic induction intensity of the vibrating part of the loudspeaker 20, multiple vibrating components 10 can be provided in the loudspeaker 20. Furthermore, when it is necessary to further increase the magnetic induction intensity of the vibrating part of the loudspeaker 20, the multiple vibrating components 10 provided in the loudspeaker 20 can be identical, adopting a structure similar to that shown in Figure 27.

[0172] Some embodiments in this specification improve the magnetic field efficiency and sound pressure level of the loudspeaker 20 by incorporating multiple vibrating components 10 within the loudspeaker 20, thus ensuring the output performance of the loudspeaker 20. Furthermore, as discussed earlier in this specification, since the thickness of the vibrating component 10 itself can be very low, the thickness of the loudspeaker 20 can remain low even when multiple vibrating components 10 are incorporated. For example, since the thickness of the vibrating component shown in Figure 3 can be 1.4 mm, while the thickness of a traditional dual-diaphragm loudspeaker is generally not less than 5.0 mm, even with two vibrating components as shown in Figure 3 in the loudspeaker 20, the thickness of the loudspeaker 20 is significantly lower than that of a traditional dual-diaphragm loudspeaker. Moreover, the loudspeaker 20 with two vibrating components exhibits higher magnetic field efficiency and superior acoustic output capability.

[0173] Some embodiments of this specification also provide an acoustic output device. The acoustic output device may include at least one vibrating component 10 and a device housing for housing the at least one vibrating component 10. The aforementioned acoustic output device may be an earphone, a hearing aid, or other device capable of acoustic output. For example, the acoustic output device may be an earphone, and correspondingly, the device housing may be an earphone housing. As another example, the earphone may be an open-back earphone. [F0174] The structure of this acoustic output device can be similar to that of the speaker 20, except that other structures may also be provided in the aforementioned acoustic output device. For example, a microphone may also be provided inside the housing of the aforementioned device.

[0175] Some embodiments of this specification also provide another acoustic output device. This acoustic output device may include at least one speaker 20 and a device housing for housing the at least one speaker 20. The aforementioned acoustic output device may be an earphone, a hearing aid, or other device capable of acoustic output. For example, the acoustic output device may be an earphone, and correspondingly, the device housing may be an earphone housing. As another example, the earphone may be an open-back earphone.

[0176] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0177] Meanwhile, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0178] Similarly, it should be noted that, in order to simplify the description of the disclosure in this application and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of the application sometimes combines multiple features into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the object of the application requires more features than those mentioned in the claims. In fact, the features of the embodiments are fewer than all the features of the single embodiments disclosed above.

[0179] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are sometimes modified with the modifier "approximate." Unless otherwise stated, "approximate" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ general methods of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0180] Finally, it should be understood that the embodiments described in this application are merely illustrative of the principles of the embodiments of this application. Other modifications may also fall within the scope of this application. Therefore, alternative configurations of the embodiments of this application are considered as examples and not limitations, and are regarded as consistent with the teachings of this application. Accordingly, the embodiments of this application are not limited to the embodiments explicitly described and illustrated in this application.

Claims

Claims 1. A vibration assembly, comprising: A vibrating element, comprising a first vibrating part, a second vibrating part, and a first connecting part, wherein the first connecting part connects the first vibrating part and the second vibrating part; and, Multiple magnets, including a first magnet and a second magnet, are respectively disposed on both sides of the vibration element in the vibration direction of the vibration element. The first vibration part and the first magnet are arranged at intervals in the vibration direction, and the second vibration part and the second magnet are arranged at intervals in the vibration direction. In the second direction perpendicular to the vibration direction, the projections of the first vibration part and the second vibration part are staggered; in the second direction, the projection of the vibration space of the first vibration part and the projection of the thickness space of the second magnet at least partially overlap.

2. The vibration assembly as described in claim 1, wherein, Both the first vibrating part and the second vibrating part include a support part and a first voice coil part fixed to the support part, and the two first voice coil parts are connected through a second voice coil part.

3. The vibration assembly as described in claim 1, wherein, In the vibration direction, there is a gap between the first magnet and the second magnet.

4. The vibration assembly as described in claim 3, wherein, In a static state, in the vibration direction, the distance between the first vibrating part and the first magnet is greater than the distance C between the first vibrating part and the second magnet.

5. The vibration assembly as described in claim 1, wherein, In the vibration direction, the thickness space of the first magnet and the thickness space of the second magnet at least partially overlap.

6. The vibration component as described in any one of claims 1-5, wherein, In a static state, in the vibration direction, the first vibrating part is located within the thickness space of the second magnet.

7. The vibration assembly as described in claim 6, wherein, In the static state, in the second direction, the projection of the thickness space of the second magnet includes a staggered portion that does not overlap with the projection of the thickness space of the first magnet. In the vibration direction, the staggered portion corresponds to the staggered region of the thickness space of the second magnet. In the vibration direction, the first vibrating part is located at 1 / 4 to 3 / 4 of the staggered region of the thickness space of the second magnet.

8. The vibration assembly as claimed in claim 1, wherein, The first magnet and the second magnet are arranged at intervals in the second direction. The magnetization directions of the first magnet and the second magnet are both parallel to the second direction, and the magnetization directions of the first magnet and the second magnet are opposite.

9. The vibration component as described in claim 8, wherein the minimum distance between the first magnet and the second magnet in the second direction is 0.3mm to 0.6mm.

10. The vibration assembly as claimed in claim 8, wherein, A reference plane is defined based on the second direction and the vibration direction. The profile of the cross section of the first magnet parallel to the reference plane includes a first side close to the first vibration part and a second side away from the first vibration part. In the second direction, the length of the first side is less than the length of the second side. And / or, the profile of the cross section of the second magnet parallel to the reference plane includes a first side close to the second vibrating part and a second side away from the second vibrating part, wherein in the second direction, the length of the first side is less than the length of the second side.

11. The vibration assembly as claimed in claim 8, wherein, The first connecting portion is inclined relative to both the vibration direction and the second direction.

12. The vibration assembly as claimed in claim 8, wherein, The connection between the first connecting part and the first vibrating part, as well as the connection between the first connecting part and the second vibrating part, are both rounded.

13. The vibration assembly as claimed in claim 8, wherein, The vibration element further includes a third vibration part and a second connecting part, the third vibration part being connected to the second vibration part through the second connecting part; the plurality of magnets further includes a third magnet, the third magnet and the third vibration part being arranged at intervals in the vibration direction; In the vibration direction, the third magnet and the first magnet are located on the same side of the vibration element, and the magnetization direction of the third magnet is the same as that of the first magnet.

14. The vibration assembly as claimed in claim 8, wherein, The vibration element further includes a third vibration part and a second connecting part, the third vibration part being connected to the second vibration part through the second connecting part; the plurality of magnets further includes a third magnet, the third magnet and the third vibration part being arranged at intervals in the vibration direction; In the vibration direction, the third magnet and the second magnet are located on the same side of the vibration element, and the magnetization direction of the third magnet is the same as that of the first magnet.

15. The vibration assembly as claimed in claim 1, wherein, Both the first magnet and the second magnet are ring-shaped cylinders or cuboids.

16. A loudspeaker, comprising a housing and at least one vibrating component as claimed in claim 1, wherein the housing has a hollow cavity inside, and the at least one vibrating component is housed in the hollow cavity of the housing.

17. The loudspeaker as claimed in claim 16, wherein, The number of the at least one vibration component is one, and the vibration element of the vibration component divides the hollow cavity into a first cavity and a second cavity. The housing is provided with a first sound outlet that is acoustically coupled to the first cavity and a second sound outlet that is acoustically coupled to the second cavity.

18. The loudspeaker as claimed in claim 17, wherein, In the vibration direction, among the plurality of magnets, the number of magnets located on one side of the vibration element is the same as the number of magnets located on the other side of the vibration element.

19. The loudspeaker as claimed in claim 18, wherein, In the vibration direction, the magnetization direction of the magnets located on the same side of the vibration element is the same.

20. The loudspeaker as described in claim 17, wherein, The vibrating element includes multiple vibrating parts, including a first vibrating part and a second vibrating part. The multiple vibrating parts are arranged at intervals along a second direction perpendicular to the vibration direction, and the multiple magnets are arranged at intervals along the second direction. Each vibrating part includes a support part and a first voice coil part fixed to the support part. Any two adjacent first voice coil parts are connected by a second voice coil part. In the second direction, the projection of the first voice coil part and the projection of the corresponding magnet at least partially overlap.

21. The loudspeaker as claimed in claim 17, wherein, There is a difference between the resonant frequency of the first cavity and the resonant frequency of the second cavity, and the ratio of the absolute value of the difference to the resonant frequency of the first cavity is 15%-25%.

22. The loudspeaker as claimed in claim 16, wherein, The at least one vibration component includes a first vibration component and a second vibration component. In the vibration direction, the first vibration component and the second vibration component are arranged at intervals. A first cavity is formed between the first vibration component and the inner wall opposite to the housing. A second cavity is formed between the second vibration component and the other side wall opposite to the housing. A third cavity is formed between the first vibration component and the second vibration component. The housing is provided with a first sound outlet hole acoustically coupled to the first cavity, a second sound outlet hole acoustically coupled to the second cavity, and a third sound outlet hole acoustically coupled to the third cavity.

23. The loudspeaker as claimed in claim 22, wherein, The volume of the first cavity is the same as that of the second cavity, and the diameter of the first sound outlet is the same as that of the second sound outlet.

24. The loudspeaker as claimed in claim 22, wherein, The number of magnets in the first vibration component is the same as the number of magnets in the second vibration component; for the first vibration component and / or the second vibration component, in the vibration direction, the number of magnets located on one side of the vibration element is the same as the number of magnets located on the other side of the vibration element.

25. The loudspeaker as claimed in claim 24, wherein, For the first vibration component and / or the second vibration component, in the vibration direction, the magnetization directions of the magnets located on the same side of the vibration element are the same.

26. The loudspeaker as claimed in claim 22, wherein, The first vibration assembly and / or the second vibration assembly each include a plurality of vibration parts, the plurality of vibration parts including the first vibration part and the second vibration part, the plurality of vibration parts being arranged at intervals along a second direction perpendicular to the vibration direction, and the plurality of magnets being arranged at intervals along the second direction; In the vibration direction, the projection of the magnet of the first vibration component overlaps with the projection of the magnet of the second vibration component, and the projection of the vibration part of the first vibration component overlaps with the projection of the vibration part of the second vibration component.

27. The loudspeaker as claimed in claim 26, wherein, For the vibration portions of the first vibration component and the second vibration component whose projections overlap in the vibration direction, a magnet of the first vibration component or a magnet of the second vibration component is provided between the vibration portions of the first vibration component and the corresponding vibration portions of the second vibration component in the vibration direction.

28. The loudspeaker as claimed in claim 26, wherein, For the vibration portions of the first vibration component and the second vibration component whose projections overlap in the vibration direction, a magnet of the first vibration component and a magnet of the second vibration component are provided or no magnet is provided between the vibration portions of the first vibration component and the corresponding vibration portions of the second vibration component in the vibration direction.

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