Loudspeaker and electronic equipment

Abstract

The invention relates to the technical field of audio, in particular to a loudspeaker and electronic equipment. The loudspeaker comprises a shell, a first vibration assembly, a second vibration assembly, a first magnetic circuit assembly and a second magnetic circuit assembly. The shell comprises a basin frame and a supporting piece, one end of a first voice coil of the first vibration assembly is fixedly connected with a first vibrating diaphragm, the other end is located in a magnetic gap of the first magnetic circuit assembly, one end of a second voice coil is fixedly connected with the first vibrating diaphragm, and the other end is located in a magnetic gap of the second magnetic circuit assembly; one end of a third voice coil of the second vibration assembly is fixedly connected with a second diaphragm, the other end is located in the magnetic gap of the first magnetic circuit assembly, one end of a fourth voice coil is fixedly connected with the second diaphragm, and the other end is located in the magnetic gap of the second magnetic circuit assembly. According to the embodiment of the utility model, the structure of the loudspeaker is more reasonable and compact, and the loudspeaker has a larger vibration area and a larger vibration height, so that the sound quality of the loudspeaker is improved, and the loudspeaker has better manufacturability and is simple to manufacture.

Description

Technical Field

[0001] This application relates to the field of audio technology, and more particularly to a loudspeaker and an electronic device. Background Technology

[0002] In open acoustic design, improving the low-frequency sound quality of a speaker generally requires the speaker diaphragm to have a large maximum linear displacement volume (Vd). However, a large Vd will directly occupy the speaker volume, so improving the low-frequency sound quality of a speaker is generally more limited and difficult to do well.

[0003] However, the shape or installation space of some electronic devices are limited, which restricts the shape of the speakers installed on them. For example, for electronic devices such as eyeglasses, the speaker size is required to have a large aspect ratio. In this case, the voice coil and other components of the speaker are difficult to manufacture, and the difficulty of improving the sound quality of the speaker is further increased. Summary of the Invention

[0004] The purpose of this application is to provide a speaker and an electronic device.

[0005] In a first aspect, embodiments of this application provide a loudspeaker, including a housing, a first vibration assembly, a second vibration assembly, a first magnetic circuit assembly, and a second magnetic circuit assembly; the housing includes a frame and a support member, the support member being fixed to the inner side of the frame, and the first magnetic circuit assembly and the second magnetic circuit assembly being fixed to the support member at intervals; the first vibration assembly includes a first diaphragm, a first voice coil, and a second voice coil, the first diaphragm being fixed to the housing and located on one side of the support member, one end of the first voice coil being fixedly connected to the first diaphragm, and the other end being located in the magnetic gap of the first magnetic circuit assembly, one end of the second voice coil being fixedly connected to the first diaphragm, and the other end being located in the magnetic gap of the second magnetic circuit assembly; the second vibration assembly includes a second diaphragm, a third voice coil, and a fourth voice coil, the second diaphragm being fixed to the housing and located on the other side of the support member, one end of the third voice coil being fixedly connected to the second diaphragm, and the other end being located in the magnetic gap of the first magnetic circuit assembly, and one end of the fourth voice coil being fixedly connected to the second diaphragm, and the other end being located in the magnetic gap of the second magnetic circuit assembly.

[0006] For example, the housing can be generally frame-shaped, such as a rectangular frame, with a hollow center and an inner cavity for mounting the speaker components. The inner side of the housing can refer to the inner side of the space occupied by the speaker frame, meaning the support components can be mostly located within the interior space of the speaker frame and can be partially embedded in it.

[0007] In this embodiment, for the first vibration component, both the first and second voice coils are fixedly connected to the first diaphragm. The first and second voice coils can synchronously drive the first diaphragm. In this case, the shape of the first diaphragm has less restriction on the shape of the first and second voice coils. The first and second voice coils can be wound separately, and their aspect ratios can be reasonably adjusted according to requirements, making the winding of the first and second voice coils simpler. Furthermore, the first voice coil is driven by the first magnetic circuit component, and the second voice coil is driven by the second magnetic circuit component. That is, the first and second voice coils are driven by different magnetic circuit components, which helps to increase the driving force on the first and second voice coils, thereby facilitating the driving of the first diaphragm and improving sound quality.

[0008] Similarly, for the second vibrating component, both the third and fourth voice coils are fixedly connected to the second diaphragm. The third and fourth voice coils can synchronously drive the second diaphragm. In this case, the shape of the second diaphragm has fewer limitations on the shapes of the third and fourth voice coils, allowing them to be wound separately. The aspect ratio of the third and fourth voice coils can be adjusted according to requirements, simplifying their winding process. Furthermore, the third voice coil is driven by the first magnetic circuit component, and the fourth voice coil is driven by the second magnetic circuit component. This means the third and fourth voice coils are driven by different magnetic circuit components, which helps to increase the driving force on the third and fourth voice coils, thus facilitating the driving of the second diaphragm and improving sound quality.

[0009] The first and second vibration components are located on both sides of the support, making the arrangement of the speaker components more reasonable and maximizing the use of space.

[0010] Furthermore, both the first and second diaphragms can vibrate, and the cooperation between the first and second diaphragms can give the speaker better low-frequency loudness, thereby improving the speaker's sound quality.

[0011] In addition, the first and third voice coils are both driven by the first magnetic circuit assembly, and the second and fourth voice coils are both driven by the second magnetic circuit assembly. This is equivalent to reusing the first and second magnetic circuit assemblies, reducing the number of speaker components and saving space inside the housing. This is beneficial for increasing the vibration space of the first and second diaphragms, thereby improving the sound quality of the speaker.

[0012] This embodiment makes the speaker structure more reasonable and compact by rationally setting the relationship between the housing, the first vibration component, the second vibration component, the first magnetic circuit component, and the second magnetic circuit component. This gives the speaker a larger vibration area and vibration height, which helps to improve the speaker's sound quality and makes the speaker easier to manufacture.

[0013] In some embodiments, the first magnetic circuit assembly includes a first central magnet and a first side magnet, the first side magnet being located around the first central magnet and forming a magnetic gap; the second magnetic circuit assembly includes a second central magnet and a second side magnet, the second side magnet being located around the second central magnet and forming a magnetic gap; the support member includes a first support portion, a connecting portion, and a second support portion connected in sequence, the first support portion and the second support portion being recessed towards the second diaphragm respectively, and a clearance space being formed between the first support portion, the connecting portion and the second support portion; the first central magnet is mounted on the first support portion, and the second central magnet is mounted on the second support portion; a third voice coil surrounds the first support portion, and a fourth voice coil surrounds the second support portion, portions of the third voice coil and portions of the fourth voice coil being located within the clearance space; the first voice coil and the second voice coil are located on opposite sides of the clearance space respectively.

[0014] In this embodiment, by setting a structure of a first support part, a second support part, and a connecting part, the first support part fixes the first central magnet, and the second support part fixes the second central magnet; the first voice coil and the third voice coil surround the first central magnet, and the connecting part avoids the third voice coil, which is equivalent to reusing the first magnetic circuit assembly; and the second voice coil and the fourth voice coil surround the second central magnet, and the connecting part avoids the fourth voice coil, which is equivalent to reusing the second magnetic circuit assembly.

[0015] Because the first and second magnetic circuit components are reused, the number of magnetic components can be reduced, thus decreasing the number of parts. Furthermore, the space in the thickness direction of the speaker can be fully utilized, which is beneficial for increasing the vibration distance between the first and second diaphragms, thereby improving the speaker's sound quality; or it can help reduce the speaker's thickness, facilitating a thinner speaker design. In addition, the first support portion isolates the first and third voice coils, preventing them from colliding, and the second support portion isolates the second and fourth voice coils, preventing them from colliding, thereby improving the speaker's reliability.

[0016] In some embodiments, the support member further includes a first fixing part and a second fixing part, the first fixing part being connected to the first support part and the second fixing part being connected to the second support part; the first fixing part and the second fixing part are respectively fixedly connected to the basin frame; a first side magnet is mounted on the surface of the first fixing part facing the second diaphragm, and a first center magnet is mounted on the surface of the first support part facing the first diaphragm; a second side magnet is mounted on the surface of the second fixing part facing the second diaphragm, and a first center magnet is mounted on the surface of the second support part facing the first diaphragm; the support member is capable of conducting magnetism.

[0017] In this embodiment, the first fixing part and the second fixing part are used to connect the first support part and the second support part to the basin frame, thereby fixing the first fixing part and the second fixing part. In addition, since there is a large space inside the basin frame, the support member is beneficial to strengthen the structural strength of the basin frame and avoid the support member from being deformed by force in the arrangement direction of the first fixing part and the second fixing part.

[0018] Furthermore, the support extends from the bottom side of the first central magnet to the top side of the first side magnet. Since the support is magnetically conductive, it facilitates the formation of the magnetic circuit of the first magnetic circuit assembly.

[0019] In some embodiments, the support member includes a support plate and an annular plate, which are spaced apart. A first fixing part, a first supporting part, a connecting part, a second supporting part, and a second fixing part are formed on the support plate. A first side magnet and a second side magnet are respectively fixed to the surface of the annular plate facing the second diaphragm.

[0020] In this embodiment, the support member is formed separately by a support plate and an annular plate, which facilitates the separate fabrication of the support plate and the annular plate. Furthermore, the separate fabrication of the support plate and the annular plate allows the support plate to have a wider width, resulting in better support capacity and thus more reliable support for the first and second magnetic circuit assemblies. In other words, this embodiment allows for a more reasonable structure for the support plate, giving it better manufacturability, support capacity, and magnetic conductivity.

[0021] In some embodiments, the support plate is a one-piece structural component; and / or, the support plate is fixed to the basin frame and is a one-piece structural component with the basin frame.

[0022] For example, the support component can be formed by bending or stamping sheet metal. In this case, the support plate has good rigidity, strength, and other supporting properties, and also has good magnetic conductivity.

[0023] For example, the support plate and the frame can be injection molded into a single structural component. In this case, the connection between the support plate and the frame is reliable, resulting in high overall strength of the structural component, making it less prone to deformation. It also provides good support for the first magnetic circuit assembly, the second magnetic circuit assembly, the first vibration assembly, and the second vibration assembly, thereby ensuring that the speaker has good and stable sound quality.

[0024] In some embodiments, the housing further includes a magnetic conductor fixed to the frame and located between the first magnetic circuit assembly and the second diaphragm. The first side magnet and the second side magnet are respectively fixed to the surface of the magnetic conductor facing the first diaphragm.

[0025] For example, the magnetic conductor can be made of a magnetically conductive material. For example, the size and shape of the magnetic conductor can be substantially the same as that of the annular plate.

[0026] In this embodiment, since the magnetic guide is located on the side of the first magnetic circuit assembly facing the second diaphragm, the third voice coil is closer to the magnetic guide, making it easier for the first magnetic circuit assembly to drive the third voice coil. At this time, the first side magnet is essentially located between the annular plate and the magnetic guide. The annular plate and the magnetic guide fix the first side magnet, making the fixation of the first side magnet more reliable. Furthermore, the annular plate and the magnetic guide respectively conduct magnetism to the two magnetic poles of the first side magnet.

[0027] Because the magnetic guide is located on the side of the second magnetic circuit assembly facing the second diaphragm, the fourth voice coil is closer to the magnetic guide, making it easier for the second magnetic circuit assembly to drive the fourth voice coil. At this time, the second side magnet is essentially located between the annular plate and the magnetic guide. The annular plate and the magnetic guide fix the second side magnet, making the fixation of the second side magnet more reliable. Furthermore, the annular plate and the magnetic guide respectively guide the magnetism to the two magnetic poles of the second side magnet.

[0028] In some embodiments, the connecting portion has a first end and a second end, the first end and the second end are arranged along a first direction, the first direction being perpendicular to the arrangement direction of the first diaphragm and the second diaphragm, and perpendicular to the arrangement direction of the first support portion and the second support portion.

[0029] The first end and the second end respectively abut against two opposite sidewalls of the housing in a first direction; or, the first end and the second end are respectively fixedly connected to two opposite sidewalls of the housing in a first direction.

[0030] For example, the first and second ends of the connector can be embedded in the side wall of the basin stand.

[0031] In this embodiment, by providing a first end and a second end of the connecting part and fixing the first end and the second end to the frame respectively, the two opposite side walls of the frame are supported in the first direction, making the frame less prone to deformation, thereby giving the frame higher reliability and ensuring the sound quality of the speaker.

[0032] Furthermore, when the first and second ends are not fixedly connected to the side wall of the basin frame, the first and second ends of the connecting part can be brought into contact with the basin frame of the shell by assembling the basin frame and the support. In this case, the basin frame and the support are easy to assemble, which helps to reduce costs.

[0033] In some embodiments, the basin frame includes a first frame and a second frame, which are fixedly connected. A first diaphragm is fixed to the first frame, and a second diaphragm is fixed to the second frame. A first end and a second end are fixed to the first frame.

[0034] The first frame has two wall panels facing each other in the first direction, each with a positioning part that protrudes toward the second diaphragm; the second frame has two wall panels facing each other in the first direction, each with a snap-fit ​​part, the positioning part being located between the snap-fit ​​parts in the first direction and abutting against the snap-fit ​​parts.

[0035] For example, the first frame may be generally rectangular. The first frame may include four wall panels connected in sequence, which are fixedly connected and enclose an installation space for mounting the first vibration assembly.

[0036] For example, the second frame may be generally rectangular. The second frame may include four wall panels connected in sequence, which are fixedly connected and enclose an installation space for mounting the first vibration assembly.

[0037] In this embodiment, the first frame and the second frame are set separately to form a basin stand, which facilitates the manufacture and assembly of the basin stand.

[0038] The connecting part can support the first frame in the first direction (width direction) to avoid deformation of the first frame. Furthermore, by providing the positioning part and the snap-fit ​​part, the second frame can be supported by the first frame in the first direction, thereby avoiding deformation of the second frame. This makes the support of the housing for other components more reliable and the sound quality of the speaker more stable.

[0039] In some embodiments, a magnetic gap is formed between the first central magnet and the second central magnet, and the first voice coil, the second voice coil, the third voice coil and the fourth voice coil are respectively partially located between the first central magnet and the second central magnet.

[0040] For example, there may be no other magnets between the first central magnet and the second central magnet, and the first central magnet and the second central magnet may be adjacent and close to each other.

[0041] In this embodiment, since the distance between the first central magnet and the second central magnet is relatively close, the spacing between the first voice coil and the second voice coil can be small, resulting in a large contact area between the first voice coil and the second voice coil and the first diaphragm. When the first diaphragm is driven by the first voice coil and the second voice coil, the unstressed area in the middle of the first diaphragm is small, and the possibility of bending deformation in the middle of the first diaphragm is small. At this time, the moment of inertia of the first vibration component is large, resulting in better vibration performance and better sound quality of the sound produced by the vibration of the first vibration component.

[0042] Similarly, the gap between the third and fourth voice coils can be smaller, so that the contact area between the third and fourth voice coils and the second diaphragm is larger. When the second diaphragm is driven by the third and fourth voice coils, the unloaded area in the middle is smaller, and the possibility of bending deformation in the middle of the second diaphragm is smaller. At this time, the moment of inertia of the second vibration component is larger, which has better vibration performance, and the sound quality of the second vibration component is also better.

[0043] In some implementations, the distance between the first central magnet and the second central magnet is less than 4 mm, and the distance between the third voice coil and the fourth voice coil is less than 2 mm.

[0044] The distance between the first central magnet and the second central magnet can be greater than 1.6 mm to accommodate other structures.

[0045] For example, the distance between the first central magnet and the second central magnet can be 3mm, 3.5mm, 4mm, etc.

[0046] The distance between the third and fourth voice coils can be greater than 0.1 mm to facilitate their installation.

[0047] For example, the distance between the third and fourth voice coils can be 1.5 mm.

[0048] In this embodiment, the first and second central magnets are close together, making fuller use of the speaker's internal space. The third and fourth voice coils are almost in contact, which helps to increase the moment of inertia of the second vibration component, thereby improving the speaker's sound quality.

[0049] In some embodiments, in the arrangement direction of the first and second diaphragms, the projection of the third voice coil surrounds the projection of the first voice coil, and the projection of the fourth voice coil surrounds the projection of the second voice coil; and the vibration height of the first voice coil at least partially coincides with the vibration height of the third voice coil, and the vibration height of the second voice coil at least partially coincides with the vibration height of the fourth voice coil.

[0050] For example, the arrangement direction of the first diaphragm and the second diaphragm can be parallel to the thickness direction of the speaker.

[0051] For example, in the thickness direction, during the vibration of the first diaphragm and the second diaphragm, the highest point of the motion of the end of the third voice coil away from the second diaphragm can be higher than the highest point of the motion of the end of the first voice coil away from the first diaphragm, and the highest point of the motion of the end of the fourth voice coil away from the second diaphragm can be higher than the highest point of the motion of the end of the second voice coil away from the first diaphragm.

[0052] When the first and second diaphragms are not vibrating, the end of the first voice coil away from the first diaphragm can be higher than the end of the third voice coil away from the second diaphragm, and the end of the second voice coil away from the first diaphragm can be higher than the end of the fourth voice coil away from the second diaphragm.

[0053] In this embodiment, the third voice coil is essentially sleeved outside the first voice coil, facilitating their placement within the magnetic gap of the first magnetic circuit assembly. Similarly, the fourth voice coil is essentially sleeved outside the second voice coil, again facilitating their placement within the magnetic gap of the second magnetic circuit assembly. Furthermore, the third and first voice coils reuse the vibration space, as do the fourth and second voice coils. This allows for a greater vibration distance among the first, second, third, and fourth voice coils within a limited height, thereby improving the low-frequency sound quality of the loudspeaker.

[0054] In some embodiments, the length directions of the first voice coil and the second voice coil are parallel to the length direction of the loudspeaker, and the arrangement direction of the first and second voice coils is parallel to the length direction of the loudspeaker.

[0055] The length directions of the third and fourth voice coils are parallel to the length direction of the loudspeaker, and the arrangement direction of the third and fourth voice coils is parallel to the length direction of the loudspeaker.

[0056] For example, the aspect ratio of the speaker can be greater than 4:1, such as 28:7, 30:7, 35:8, etc.

[0057] For example, the aspect ratio of the first, second, third and / or fourth voice coils is less than 6:1 to facilitate winding.

[0058] In this embodiment, the orientation of the first and second voice coils, as well as their arrangement, are more compatible with the length of the speaker. This facilitates driving the first diaphragm with an appropriate number of voice coils and simplifies the speaker's structure. Furthermore, it allows for a smaller aspect ratio between the first and second voice coils, making their winding easier and thus simplifying speaker manufacturing. Similarly, the orientation of the third and fourth voice coils, as well as their arrangement, are also more compatible with the length of the speaker, further simplifying the speaker's structure and facilitating its manufacturing.

[0059] In some embodiments, the loudspeaker has a fixing member that is fixedly connected to the sidewalls opposite to the third and fourth voice coils.

[0060] For example, the fastener can be installed on the end face of the third and fourth voice coils opposite to the second diaphragm.

[0061] In this embodiment, the third and fourth voice coils are fixedly connected by a fixing member, keeping them relatively fixed. This increases the moment of inertia of the second vibration assembly and reduces the deformation of the vibrating part of the second diaphragm, which is beneficial to improving the sound quality of the second diaphragm. In addition, the relatively fixed third and fourth voice coils can vibrate synchronously, resulting in more synchronized driving of the second diaphragm, which is beneficial to improving the sound quality of the second diaphragm. Furthermore, the two voice coils will not deflect, which can avoid collisions with the first and second magnetic circuit assemblies, thus improving the stability of the speaker.

[0062] In some embodiments, in the arrangement direction of the first diaphragm and the second diaphragm, the distance between the fixing member and the end of the third voice coil connected to the first diaphragm is a first dimension, and the distance between the fixing member and the end of the third voice coil away from the first diaphragm is a second dimension, both the first dimension and the second dimension being greater than 1 mm.

[0063] In this embodiment, the installation of the fastener does not increase the thickness of the second vibration assembly, and the fastener is spaced apart from both ends of the third voice coil and the fourth voice coil, thus facilitating the installation of the fastener.

[0064] In some embodiments, the fixing member has a through hole, and the area of ​​the through hole is greater than half the area of ​​the fixing member in the arrangement direction of the first diaphragm and the second diaphragm.

[0065] In this embodiment, by creating a through hole, material can be removed from the fastener, thereby reducing its weight. The sidewall of the through hole can form connecting ribs or supporting ribs for the fastener, giving it good support capacity with low weight.

[0066] In some implementations, the fastener can be a circuit board, and the fastener is electrically connected to the third voice coil and the fourth voice coil.

[0067] In this embodiment, the fixing member can both fix the third voice coil and the fourth voice coil and electrically connect the third voice coil and the fourth voice coil, which helps to reduce the number of parts in the second vibration assembly.

[0068] In some implementations, the fastener is a colloid.

[0069] In this embodiment, by setting the fixing component to a colloid, it is easier to form the fixing component when assembling the second vibration component, which helps to reduce the number of parts in the second vibration component and save material costs.

[0070] In some embodiments, the first vibration assembly further includes a first reinforcing plate, which is fixed to the side of the first diaphragm facing the second diaphragm. The first reinforcing plate is located at the interval between the first voice coil and the second voice coil. In the arrangement direction of the first voice coil and the second voice coil, the length of the first reinforcing plate is greater than the distance between the first voice coil and the second voice coil.

[0071] And / or, the second vibration assembly further includes a second reinforcing plate, which is fixed to the side of the second diaphragm facing the first diaphragm. The second reinforcing plate is located at the interval between the third voice coil and the fourth voice coil. In the arrangement direction of the third voice coil and the fourth voice coil, the length of the second reinforcing plate is greater than the distance between the third voice coil and the fourth voice coil.

[0072] In this embodiment, by providing a first reinforcing plate, the stiffness of the position where the first diaphragm connects to the first voice coil and the second voice coil is strengthened, thereby increasing the moment of inertia of the first vibration component. This prevents the first diaphragm from bending during vibration, resulting in better sound quality when the first diaphragm drives the air to vibrate. In addition, preventing the first diaphragm from bending also prevents the first and second voice coils from deflecting, thereby preventing collisions between the first voice coil and the first magnetic circuit component, and between the second voice coil and the second magnetic circuit component, thus improving the reliability of the loudspeaker.

[0073] By adding a second reinforcing plate, the stiffness of the area where the second diaphragm connects to the third and fourth voice coils is strengthened, increasing the moment of inertia of the second vibrating assembly. This prevents the second diaphragm from bending, resulting in better sound quality as the diaphragm vibrates the air to produce sound. Furthermore, preventing the second diaphragm from bending also prevents the third and fourth voice coils from deflecting, thus avoiding collisions between the third voice coil and the first magnetic circuit assembly, and between the fourth voice coil and the second magnetic circuit assembly, improving the speaker's reliability. The shape and size of the second reinforcing plate are easy to set, allowing for an increase in its moment of inertia with minimal impact on the mass of the second vibrating assembly.

[0074] In some embodiments, the first vibration assembly further includes a first centering support plate, one side of which is fixedly connected to the first diaphragm, and the other side is fixedly connected to the first voice coil and the second voice coil, and the first centering support plate is electrically connected to the first voice coil and the second voice coil.

[0075] And / or, the second vibration assembly further includes a second centering support plate, one side of which is fixedly connected to the second diaphragm, and the other side is fixedly connected to the third and fourth voice coils, and the second centering support plate is electrically connected to the third and fourth voice coils.

[0076] In this embodiment, the first and second voice coils can be fixedly connected to the first diaphragm via a first centering support to better meet the positional arrangement requirements of the first and second voice coils. The third and fourth voice coils can be fixedly connected to the second diaphragm via a second centering support to better meet the positional arrangement requirements of the third and fourth voice coils.

[0077] In some embodiments, the loudspeaker further includes a third magnetic circuit assembly, the first vibration assembly further includes a fifth voice coil, the second vibration assembly further includes a sixth voice coil, the third magnetic circuit assembly is fixed to the support, one end of the fifth voice coil is fixedly connected to the first diaphragm, and the other end is located in the magnetic gap of the third magnetic circuit assembly, and one end of the sixth voice coil is fixedly connected to the second diaphragm, and the other end is located in the magnetic gap of the third magnetic circuit assembly.

[0078] In this embodiment, the fifth and sixth voice coils are located in the magnetic gap of the third magnetic circuit assembly, which is equivalent to reusing the third magnetic circuit assembly. Furthermore, the first diaphragm is driven by the first, second, and fifth voice coils; the second diaphragm is driven by the third, fourth, and sixth voice coils, which is beneficial for setting up a loudspeaker with a larger aspect ratio.

[0079] In some implementations, the vibration directions of the first diaphragm and the second diaphragm are parallel, and the first diaphragm and the second diaphragm are used to form an acoustic dipole or an acoustic monopole.

[0080] In this embodiment, the first diaphragm and the second diaphragm can work together to enable the speaker to have both acoustic dipole mode and acoustic monopole mode, thereby giving the speaker better privacy or better sound quality to adapt to different scenarios.

[0081] Secondly, embodiments of this application provide an electronic device, which includes a body and a speaker as provided in any of the above embodiments, the speaker being fixed to the body.

[0082] In this embodiment, the speaker has a compact structure and good sound quality, making it easier to adapt to the shape of electronic devices, resulting in a more reasonable shape design for electronic devices and better sound playback. Attached Figure Description

[0083] To illustrate the technical solutions in the embodiments or background art of this application, the accompanying drawings used in the embodiments or background art of this application will be described below.

[0084] In the attached image:

[0085] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0086] Figure 2 yes Figure 1 The diagram shown is a structural schematic of a speaker in some embodiments.

[0087] Figure 3 yes Figure 2 Schematic diagram of the cross section at point AA;

[0088] Figure 4 yes Figure 2 The diagram shown is an exploded view of the speaker in some embodiments.

[0089] Figure 5 yes Figure 4 An exploded structural diagram of a portion of the speaker module shown.

[0090] Figure 6 It is along Figure 2 A sectional view cut at point BB in the middle;

[0091] Figure 7 It is along Figure 2 A sectional view cut at point CC;

[0092] Figure 8 It is along Figure 2 A front view cut at point AA in the middle;

[0093] Figure 9 It is along Figure 2 A sectional view cut at point DD;

[0094] Figure 10 It is along Figure 2 A sectional view cut at point EE;

[0095] Figure 11 yes Figure 4 The diagram shows a structural schematic of the second vibration component in some other embodiments;

[0096] Figure 12 yes Figure 4 The diagram shows a structural schematic of the second vibration component in some other embodiments;

[0097] Figure 13 yes Figure 4 The diagram shows a structural schematic of the second vibration component in some embodiments;

[0098] Figure 14 yes Figure 1 The diagram shows structural schematics of other embodiments of the loudspeaker.

[0099] Figure 15 yes Figure 1 The diagram shown illustrates the sound-generating principle of a loudspeaker in some embodiments.

[0100] Figure 16 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application. Detailed Implementation

[0101] The embodiments of this application are described below with reference to the accompanying drawings.

[0102] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Multiple" refers to at least two.

[0103] The directional terms mentioned in the embodiments of this application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side", etc., are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0104] In the embodiments of this application, the relative positional relationships mentioned, such as parallel, perpendicular, and aligned, are defined in relation to the current technological level, rather than being absolutely strict. Slight deviations are permissible; approximations of parallelism, perpendicularity, or alignment are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0105] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0106] This application provides a loudspeaker and an electronic device. The loudspeaker includes a housing, a first vibration assembly, a second vibration assembly, a first magnetic circuit assembly, a second magnetic circuit assembly, and a magnetic guide, the magnetic guide being fixed inside the housing. The first vibration assembly includes a first diaphragm and a first voice coil. The first diaphragm is fixed to the housing and located on one side of the magnetic guide, the first magnetic circuit assembly is fixed to the side of the magnetic guide facing the first diaphragm, and one end of the first voice coil is fixedly connected to the first diaphragm, the other end being located in the magnetic gap of the first magnetic circuit assembly. The second vibration assembly includes a second diaphragm and a second voice coil. The second diaphragm is fixed to the housing and located on the other side of the magnetic guide, the second magnetic circuit assembly is fixed to the side of the magnetic guide facing the second diaphragm, and one end of the second voice coil is fixedly connected to the second diaphragm, the other end being located in the magnetic gap of the second magnetic circuit assembly. The loudspeaker of this application has good low-frequency loudness and good sound quality.

[0107] Among them, electronic devices can be augmented reality (AR) glasses, AR helmets or virtual reality (VR) glasses, tablets, mobile phones, reading pens, selfie sticks, wristbands, smartwatches and other electronic devices that need to output audio using speakers.

[0108] The following explanation uses AR glasses as an example of an electronic device.

[0109] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0110] In some embodiments, the electronic device 100 includes a glasses frame 10, a display device 20, a speaker 30, and a circuit board 40. The glasses frame 10 serves as the body of the electronic device 100. The display device 20, speaker 30, and circuit board 40 are all mounted on the glasses frame 10. The display device 20 and speaker 30 are both electrically connected to the circuit board 40, which is used to control the display device 20 to display and to control the speaker 30 to emit sound.

[0111] The eyeglass frame 10 includes a frame 101 and temples 102 connected to the frame 101. There are two temples 102, connected to opposite ends of the frame 101. It should be noted that in other embodiments, the eyeglass frame 10 may also include a frame 101 and a fixing strap connected to the frame 101; this application does not specifically limit this.

[0112] The materials used for the frame 101 include, but are not limited to, metal, plastic, resin, or natural materials. It should be understood that the frame 101 is not limited to... Figure 1 The semi-rimless frame shown can also be a full-rim or rimless frame.

[0113] In this embodiment, there are two display devices 20, and the two display devices 20 have the same structure. Specifically, the two display devices 20 are respectively mounted on the frame 101. When the electronic device 100 is worn on the user's head, one display device 20 corresponds to the user's left eye, and the other display device 20 corresponds to the user's right eye. At this time, the user's eyes can view virtual or real scenes through the two display devices 20. It should be noted that in other embodiments, the structures of the two display devices 20 may be different, or the number of the two display devices 20 may be one or more. This application does not specifically limit this.

[0114] In this embodiment, the display device 20 is mounted on the frame 101 and electrically connected to the circuit board 40. In this embodiment, the circuit board 40 can be mounted inside the temple 102. There can be two circuit boards 40, each located in one of the two temples 102 and electrically connected to its corresponding display device 20. Of course, in other embodiments, there can be only one circuit board 40, located in one of the temples 102.

[0115] Of course, in other embodiments, the circuit board 40 may also be mounted on the frame 101.

[0116] Two temples 102 are rotatably connected to opposite ends of the frame 101. Specifically, each temple 102 is rotatably connected to the frame 101. When the electronic device 100 is in the "on" state (e.g., ...), Figure 1 When the electronic device 100 is in the folded state, the two temples 102 rotate relative to the frame 101 until they are facing each other. At this time, the two temples 102 of the electronic device 100 can be placed on the user's two ears respectively, and the crossbeam is placed on the user's nose bridge for wearing on the user's head. When the electronic device 100 is in the folded state, the two temples 102 rotate relative to the frame 101 until they at least partially overlap each other and are housed inside the frame 101. At this time, the electronic device 100 can be stored away.

[0117] It should be noted that the directional terms such as "inner side" and "outer side" used when referring to the electronic device 100 in this application are mainly based on the orientation of the electronic device 100 when it is worn on the user's head. When the electronic device 100 is worn by the user, the side closer to the user's head is considered "inner side," and the side farther from the user's head is considered "outer side." This does not constitute a limitation on the orientation of the electronic device 100 in other scenarios.

[0118] It is understood that in other embodiments, the two temples 102 may be fixedly connected to the frame 101 respectively, or the two temples 102 may be integrally formed with the frame 101, that is, the electronic device 100 is always in the unfolded state. This application does not make specific limitations on this.

[0119] It is understood that the two temples 102 in this embodiment have the same structure. Of course, in other embodiments, the two temples 102 may have different structures.

[0120] Please refer to the following: Figures 2 to 4 , Figure 2 yes Figure 1 The speaker 30 shown is a structural schematic diagram in some embodiments. Figure 3 yes Figure 2 A cross-sectional view of section AA. Figure 4 yes Figure 2 The speaker 30 shown is an exploded structural diagram in some embodiments.

[0121] In some embodiments, the loudspeaker 30 includes a housing 1, a first vibration component 2, a second vibration component 3, a first magnetic circuit component 4, and a second magnetic circuit component 5. For ease of description, the loudspeaker 30 is defined as having a length direction X, a width direction Y, and a thickness direction Z, with each pair of these directions perpendicular to the other. It is understood that the loudspeaker 30 and its components or structures are defined with the side closer to the first diaphragm of the first vibration component 2 as the "top" and the side farther from the first diaphragm of the first vibration component 2 as the "bottom."

[0122] The housing 1 can be roughly frame-shaped, for example, a rectangular frame. The center of the housing 1 is hollowed out, and an installation cavity can be formed on the inner side of the housing 1. The installation cavity can be used to install the components of the speaker 30. In this case, the housing 1 serves as a support structure for the speaker 30. In some other embodiments, the housing 1 can also be a frame of other shapes, such as a circular frame. This application does not strictly limit this type of housing.

[0123] For example, the housing 1 may include a basin frame 11 and a support member 12. The support member 12 may be fixed to the basin frame 11. The shape of the basin frame 11 may be approximately the same as the shape of the housing 1. The basin frame 11 may form the main structure of the housing 1. The support member 12 may be approximately plate-shaped. The support member 12 may be fixed to the inner side of the basin frame 11, making the structure of the housing 1 more regular. For example, the support member 12 may be located approximately in the middle of the top and bottom sides of the basin frame 11, and other components of the speaker 30 may be provided on the support member 12 and its top and bottom sides. The inner side of the basin frame 11 may refer to the inner side of the space occupied by the basin frame 11, that is, the support member 12 may be mostly located in the internal space of the basin frame 11, and may be partially embedded in the basin frame 11.

[0124] In some examples, housing 1 may be approximately symmetrical. In other embodiments, housing 1 may also be asymmetrical.

[0125] The first magnetic circuit assembly 4 can form a magnetic gap 4a. Exemplarily, the first magnetic circuit assembly 4 can include a magnet to form a magnetic field. For example, the first magnetic circuit assembly 4 includes at least one magnet. The first magnetic circuit assembly 4 can also include a magnetically conductive component to guide the magnetic circuit. The first magnetic circuit assembly 4 can be fixed to the housing 1. Exemplarily, the first magnetic circuit assembly 4 can be fixed to the support member 12. In this case, the support member 12 provides support for the first magnetic circuit assembly 4.

[0126] The second magnetic circuit assembly 5 can form a magnetic gap 5a. Exemplarily, the second magnetic circuit assembly 5 may include a magnet to form a magnetic field. For example, the second magnetic circuit assembly 5 includes at least one magnet. The second magnetic circuit assembly 5 may also include a magnetically guiding component to guide the magnetic circuit. The second magnetic circuit assembly 5 can be fixed to the housing 1. Exemplarily, the second magnetic circuit assembly 5 can be fixed to the support member 12. In this case, the support member 12 has a supporting function for the second magnetic circuit assembly 5. The second magnetic circuit assembly 5 and the first magnetic circuit assembly 4 can be arranged side-by-side to make reasonable use of the space inside the housing 1. The second magnetic circuit assembly 5 and the first magnetic circuit assembly 4 can be spaced apart to avoid failure of the magnetic gap between them.

[0127] The first vibration component 2 may include a diaphragm and multiple voice coils. The first vibration component 2 may be fixed to the housing 1. The first vibration component 2 may be driven to vibrate and produce sound.

[0128] For example, the first vibration component 2 may include a first diaphragm 21, a first voice coil 22, and a second voice coil 23.

[0129] The first diaphragm 21 can be fixed to the housing 1 and located on one side (i.e., the top side) of the support 12. The first diaphragm 21 can protrude from the housing 1. The area of ​​the first diaphragm 21 can be substantially the same as the area of ​​the housing 1. The first diaphragm 21 can be deformable to generate vibration.

[0130] One end of the first voice coil 22 can be fixedly connected to the first diaphragm 21, and the other end can be located in the magnetic gap 4a of the first magnetic circuit assembly 4. The first voice coil 22 can be roughly in the form of a hollow rectangular structure; the first voice coil 22 can be formed by winding wire. The first voice coil 22 can be energized and generate an interaction force with the first magnetic circuit assembly 4, thereby vibrating. The first voice coil 22 drives the first diaphragm 21 to vibrate through its own vibration.

[0131] One end of the second voice coil 23 can be fixedly connected to the first diaphragm 21, and the other end can be located in the magnetic gap 5a of the second magnetic circuit assembly 5. The second voice coil 23 can be roughly in the form of a hollow rectangular structure; the second voice coil 23 can be formed by winding wire. The second voice coil 23 can be energized and generate an interaction force with the second magnetic circuit assembly 5, thereby vibrating. The second voice coil 23 drives the first diaphragm 21 to vibrate through its own vibration.

[0132] Since the first magnetic circuit assembly 4 and the second magnetic circuit assembly 5 are arranged side by side with intervals, the first voice coil 22 and the second voice coil 23 can also be arranged side by side with intervals accordingly.

[0133] In this example, when the first voice coil 22 is energized, it interacts with the magnetic field of the first magnetic circuit assembly 4, thereby driving the first diaphragm 21 to vibrate. The first diaphragm 21 then vibrates the air, thus enabling the speaker 30 to produce sound. The first voice coil 22 can receive alternating signals and generate alternating forces in the magnetic field. The principle by which the second voice coil 23 drives the first diaphragm 21 is the same as that of the first voice coil 22, and will not be repeated here. The second voice coil 23 can be connected in parallel or in series with the first voice coil 22; this example does not impose strict limitations.

[0134] The first voice coil 22 and the second voice coil 23 can drive the first diaphragm 21 to vibrate in the direction of the axis of the first voice coil 22. The axis of the first voice coil 22 can be the same as the thickness direction Z of the loudspeaker 30. The vibration direction of the first diaphragm 21 is usually perpendicular to the first diaphragm 21 itself.

[0135] For example, the second vibration component 3 may include a second diaphragm 31, a third voice coil 32, and a fourth voice coil 33.

[0136] The second diaphragm 31 can be fixed to the housing 1 and located on one side (i.e., the bottom side) of the support 12. The second diaphragm 31 can protrude from the housing 1. The area of ​​the second diaphragm 31 can be substantially the same as the area of ​​the housing 1. The second diaphragm 31 can be deformable to generate vibration.

[0137] One end of the third voice coil 32 can be fixedly connected to the second diaphragm 31, and the other end can be located in the magnetic gap 4a of the first magnetic circuit assembly 4. The third voice coil 32 can be roughly in the form of a hollow rectangular structure; the third voice coil 32 can be formed by winding wire. The third voice coil 32 can be energized and generate an interaction force with the first magnetic circuit assembly 4, thereby vibrating. The third voice coil 32 drives the second diaphragm 31 to vibrate through its own vibration.

[0138] One end of the fourth voice coil 33 can be fixedly connected to the second diaphragm 31, and the other end can be located in the magnetic gap 5a of the second magnetic circuit assembly 5. The fourth voice coil 33 can be roughly in the form of a hollow rectangular structure; the fourth voice coil 33 can be formed by winding wire. The fourth voice coil 33 can be energized and generate an interaction force with the second magnetic circuit assembly 5, thereby vibrating. The fourth voice coil 33 drives the second diaphragm 31 to vibrate through its own vibration.

[0139] Since the first magnetic circuit assembly 4 and the second magnetic circuit assembly 5 are arranged side by side with intervals, the third voice coil 32 and the fourth voice coil 33 can also be arranged side by side with intervals accordingly.

[0140] In this example, when the third voice coil 32 is energized, it interacts with the magnetic field of the first magnetic circuit assembly 4, thereby driving the second diaphragm 31 to vibrate. The second diaphragm 31 then vibrates the air, thus enabling the speaker 30 to produce sound. The third voice coil 32 can receive alternating signals and generate alternating forces in the magnetic field. The principle by which the fourth voice coil 33 drives the second diaphragm 31 is the same as that of the third voice coil 32, and will not be repeated here. The fourth voice coil 33 can be connected in parallel or in series with the third voice coil 32; this example does not impose strict limitations.

[0141] The direction in which the third voice coil 32 and the fourth voice coil 33 drive the second diaphragm 31 to vibrate can be along the axis of the third voice coil 32. The axis of the third voice coil 32 can be the same as the thickness direction Z of the loudspeaker 30. The vibration direction of the second diaphragm 31 is usually perpendicular to the second diaphragm 31 itself.

[0142] In this embodiment, for the first vibration component 2, both the first voice coil 22 and the second voice coil 23 are fixedly connected to the first diaphragm 21. The first voice coil 22 and the second voice coil 23 can synchronously drive the first diaphragm 21. At this time, the shape of the first diaphragm 21 has less restriction on the shape of the first voice coil 22 and the second voice coil 23. The first voice coil 22 and the second voice coil 23 can be wound separately, and the aspect ratio of the first voice coil 22 and the second voice coil 23 can be reasonably wound according to requirements, making the winding of the first voice coil 22 and the second voice coil 23 simpler. In addition, the first voice coil 22 is driven by the first magnetic circuit component 4, and the second voice coil 23 is driven by the second magnetic circuit component 5. That is, the first voice coil 22 and the second voice coil 23 are driven by different magnetic circuit components, which is beneficial to improving the driving force on the first voice coil 22 and the second voice coil 23, thereby facilitating the driving of the first diaphragm 21 and improving the sound quality.

[0143] Similarly, for the second vibrating component 3, both the third voice coil 32 and the fourth voice coil 33 are fixedly connected to the second diaphragm 31. The third voice coil 32 and the fourth voice coil 33 can synchronously drive the second diaphragm 31. At this time, the shape of the second diaphragm 31 has less restriction on the shape of the third voice coil 32 and the fourth voice coil 33. The third voice coil 32 and the fourth voice coil 33 can be wound separately, and their aspect ratios can be reasonably wound according to requirements, making the winding of the third voice coil 32 and the fourth voice coil 33 simpler. In addition, the third voice coil 32 is driven by the first magnetic circuit component 4, and the fourth voice coil 33 is driven by the second magnetic circuit component 5. That is, the third voice coil 32 and the fourth voice coil 33 are driven by different magnetic circuit components, which helps to increase the driving force on the third voice coil 32 and the fourth voice coil 33, thereby facilitating the driving of the second diaphragm 31 and improving sound quality.

[0144] The first vibration component 2 and the second vibration component 3 are located on both sides of the support 12, which makes the arrangement of the components of the loudspeaker 30 more reasonable and helps to maximize the use of space.

[0145] Furthermore, both the first diaphragm 21 and the second diaphragm 31 can vibrate. The cooperation between the first diaphragm 21 and the second diaphragm 31 can enable the speaker 30 to have better low-frequency loudness, thereby improving the sound quality of the speaker 30.

[0146] In addition, the first voice coil 22 and the third voice coil 32 are both driven by the first magnetic circuit assembly 4, and the second voice coil 23 and the fourth voice coil 33 are both driven by the second magnetic circuit assembly 5. This is equivalent to reusing the first magnetic circuit assembly 4 and the second magnetic circuit assembly 5, which reduces the number of components in the speaker 30 and saves space inside the housing 1. This is beneficial to increasing the vibration space of the first diaphragm 21 and the second diaphragm 31, thereby improving the sound quality of the speaker 30.

[0147] This embodiment makes the structure of the speaker 30 more reasonable and compact by reasonably setting the relationship between the housing 1, the first vibration component 2, the second vibration component 3, the first magnetic circuit component 4, and the second magnetic circuit component 5. This gives the speaker 30 a larger vibration area and vibration height, which is beneficial to improving the sound quality of the speaker 30 and also makes the speaker 30 more manufacturable and easier to manufacture.

[0148] Please continue reading. Figure 3 and Figure 4 .

[0149] In some embodiments, the first diaphragm 21 may include a vibrating part 211, a folded ring part 212, and a fixing part 213. The vibrating part 211, the folded ring part 212, and the fixing part 213 are sequentially fixedly connected.

[0150] The vibrating part 211 can be rectangular. A folded ring part 212 surrounds the outer periphery of the vibrating part 211 and connects to it. The folded ring part 212 can be deformable; for example, it can have an overall arc-shaped ring structure, which is easily deformed and stretched to allow the vibrating part 211 to move relative to the fixed part 213. The folded ring part 212 can protrude towards the top side away from the housing 1. The fixed part 213 surrounds the outer periphery of the folded ring part 212 and connects to it. The fixed part 213 can be an annular structure, facilitating its fixation to the top side of the housing 1. The folded ring part 212 and the vibrating part 211 correspond to a central open space in the housing 1. This open space is used to accommodate the deformation of the folded ring part 212 and to avoid the vibration of the vibrating part 211.

[0151] In some embodiments, the first vibrating component 2 may further include a first centering support 24. The first voice coil 22 and the second voice coil 23 can be fixedly connected to the first diaphragm 21 through the first centering support 24 to better meet the positional arrangement requirements of the first voice coil 22 and the second voice coil 23.

[0152] The first centering support 24 can be roughly frame-shaped and plate-shaped, so that the first voice coil 22 and the second voice coil 23 are evenly connected to the first diaphragm 21.

[0153] The first centering support 24 can be deformable. The main deformation direction of the first centering support 24 can be the thickness direction of the first centering support 24, that is, it can be parallel to the thickness direction Z, and the deformability of the first centering support 24 in the plane of length direction X and width direction Y can be minimized.

[0154] For example, the first centering support 24 may include an outer ring portion 241, a deformable portion 242, and an inner ring portion 243. The deformable portion 242 is fixedly connected to the outer ring portion 241 and the inner ring portion. The outer ring portion 241 may be a rectangular ring structure. The outer ring portion 241 may be used to be fixedly connected to the top surface of the housing 1, and the outer ring portion 241 is also used to be fixedly connected to the fixing portion 213 of the first diaphragm 21. One side of the inner ring portion 243 is fixedly connected to the first voice coil 22 and the second voice coil 23, and the other side of the inner ring portion 243 is used to be fixedly connected to the vibrating portion 211 of the first diaphragm 21. One end of the deformable portion 242 is fixedly connected to the inner circumference of the outer ring portion 241, and the other end is fixedly connected to the outer circumference of the inner ring portion 243. The deformable portion 242 is located below the folded ring portion 212 of the first diaphragm 21. The deformable portion 242 is elastically deformable, and the main deformation direction of the deformable portion 242 may be parallel to the thickness direction Z. When the first voice coil 22 and the second voice coil 23 drive the vibrating part 211 of the first diaphragm 21 to vibrate, the inner ring part 243 follows the vibration of the vibrating part 211 and the outer ring part 241 is fixed relative to the housing 1. The outer ring part 241 and the inner ring part 243 generate relative movement. The deformation part 242 causes the first voice coil 22 and the second voice coil 23 to vibrate mainly in a direction perpendicular to the vibrating part 211 and reduces the movement of the first voice coil 22 and the second voice coil 23 in a direction parallel to the vibrating part 211.

[0155] In this embodiment, the first centering support 24 can also be electrically connected to the first voice coil 22 and the second voice coil 23. In this case, the first centering support 24 can conduct electricity, thereby energizing the first voice coil 22 and the second voice coil 23. In some other embodiments, the first centering support 24 may not be electrically connected to the first voice coil 22 and the second voice coil 23.

[0156] In some embodiments, the first vibrating component 2 may further include a first reinforcing sheet 25. The first reinforcing sheet 25 is fixed to the side of the first diaphragm 21 facing the second diaphragm 31, and the first reinforcing sheet 25 is located at the interval between the first voice coil 22 and the second voice coil 23. In the arrangement direction of the first voice coil 22 and the second voice coil 23, the length of the first reinforcing sheet 25 may be greater than the distance between the first voice coil 22 and the second voice coil 23.

[0157] The first reinforcing sheet 25 can be a thin sheet structure. The first reinforcing sheet 25 can have high stiffness. For example, the stiffness of the first reinforcing sheet 25 can be greater than or equal to the vibrating part 211 of the first diaphragm 21, but it is not strictly limited to this.

[0158] By setting the first reinforcing plate 25, the stiffness of the position where the first diaphragm 21 connects to the first voice coil 22 and the second voice coil 23 is strengthened, which increases the moment of inertia of the first vibration component 2, thereby preventing the first diaphragm 21 from bending during vibration and making the sound quality of the first diaphragm 21 vibrating the air better. In addition, preventing the first diaphragm 21 from bending can also prevent the first voice coil 22 and the second voice coil 23 from deflecting, thereby preventing the first voice coil 22 from colliding with the first magnetic circuit component 4 and the second voice coil 23 from colliding with the second magnetic circuit component 5, and improving the reliability of the speaker 30.

[0159] In some other embodiments, the first vibrating component 2 may not include the first reinforcing sheet 25. Alternatively, the first diaphragm 21 may be locally thickened at the interval corresponding to the first voice coil 22 and the second voice coil 23, thereby increasing the moment of inertia of the first diaphragm 21.

[0160] In some embodiments, the second diaphragm 31 may include a vibrating part 311, a folded ring part 312, and a fixing part 313. The vibrating part 311, the folded ring part 312, and the fixing part 313 are fixedly connected in sequence.

[0161] The vibrating part 311 can be rectangular. A folded ring part 312 surrounds the outer periphery of the vibrating part 311 and connects to it. The folded ring part 312 can be deformable; for example, it can have an overall arc-shaped ring structure, which is easily deformed and stretched to allow the vibrating part 311 to move relative to the fixed part 313. The folded ring part 312 can protrude towards the bottom side away from the housing 1. The fixed part 313 surrounds the outer periphery of the folded ring part 312 and connects to it. The fixed part 313 can be an annular structure, facilitating fixation to the bottom side of the housing 1. The folded ring part 312 and the vibrating part 311 correspond to a central open space in the housing 1. This open space is used to accommodate the deformation of the folded ring part 312 and to avoid the vibration of the vibrating part 311.

[0162] In some embodiments, the vibration directions of the first diaphragm 21 and the second diaphragm 31 can be parallel, and the first diaphragm 21 and the second diaphragm 31 can be used to form an acoustic dipole or an acoustic monopole. The first diaphragm 21 and the second diaphragm 31 can be arranged approximately parallel to each other, and the areas of the first diaphragm 21 and the second diaphragm 31 can be the same.

[0163] In some embodiments, the second vibration component 3 may further include a second centering support 34. The third voice coil 32 and the fourth voice coil 33 can be fixedly connected to the second diaphragm 31 through the second centering support 34 to better meet the positional arrangement requirements of the third voice coil 32 and the fourth voice coil 33.

[0164] The second centering support plate 34 can be roughly frame-shaped, and the centering support plate can be roughly plate-shaped, so that the third voice coil 32 and the fourth voice coil 33 are evenly connected to the second diaphragm 31.

[0165] The second centering support 34 can be deformable. The main deformable direction of the second centering support 34 is the thickness direction of the second centering support 34, that is, it can be parallel to the thickness direction Z, and the deformability of the second centering support 34 in the plane of length direction X and width direction Y can be minimized.

[0166] For example, the second centering support 34 may include an outer ring portion 341, a deformable portion 342, and an inner ring portion 343. The deformable portion 342 is fixedly connected to the outer ring portion 341 and the inner ring portion 343. The outer ring portion 341 may be a rectangular ring structure. The outer ring portion 341 may be used to be fixedly connected to the bottom surface of the housing 1, and the outer ring portion 341 may also be used to be fixedly connected to the fixing portion 313 of the second diaphragm 31. One side of the inner ring portion 343 is fixedly connected to the third voice coil 32 and the fourth voice coil 33, and the other side of the inner ring portion 343 is used to be fixedly connected to the vibrating portion 311 of the second diaphragm 31. One end of the deformable portion 342 is fixedly connected to the inner circumference of the outer ring portion 341, and the other end is fixedly connected to the outer circumference of the inner ring portion 343. The deformable portion 342 is located on the upper side of the folded ring portion 312 of the second diaphragm 31. The deformable portion 342 is elastically deformable, and the main deformation direction of the deformable portion 342 may be parallel to the thickness direction Z. When the third voice coil 32 and the fourth voice coil 33 drive the vibrating part 311 of the second diaphragm 31 to vibrate, the inner ring part 343 follows the vibration of the vibrating part 311 and the outer ring part 341 is fixed relative to the housing 1. The outer ring part 341 and the inner ring part 343 generate relative motion. The deformation part 342 causes the third voice coil 32 and the fourth voice coil 33 to vibrate mainly in a direction perpendicular to the vibrating part 311 and reduces the movement of the third voice coil 32 and the fourth voice coil 33 in a direction parallel to the vibrating part 311.

[0167] The second centering support 34 can also be electrically connected to the third voice coil 32 and the fourth voice coil 33. In this case, the second centering support 34 can conduct electricity, thereby energizing the third voice coil 32 and the fourth voice coil 33. In some other embodiments, the second centering support 34 may not be electrically connected to the third voice coil 32 and the fourth voice coil 33.

[0168] In some embodiments, the second vibrating component 3 may further include a second reinforcing plate 35, which is fixed to the side of the second diaphragm 31 facing the first diaphragm 21, and is located at the interval between the third voice coil 32 and the fourth voice coil 33. In the arrangement direction of the third voice coil 32 and the fourth voice coil 33, the length of the second reinforcing plate 35 may be greater than the distance between the third voice coil 32 and the fourth voice coil 33.

[0169] The second reinforcing sheet 35 can be a thin sheet structure. The second reinforcing sheet 35 can have high stiffness. For example, the stiffness of the second reinforcing sheet 35 can be greater than or equal to the vibrating part 311 of the second diaphragm 31, but it is not strictly limited to this.

[0170] By providing the second reinforcing plate 35, the stiffness of the position where the second diaphragm 31 connects to the third voice coil 32 and the fourth voice coil 33 is strengthened, increasing the moment of inertia of the second vibrating assembly 3. This prevents the second diaphragm 31 from bending, resulting in better sound quality from the second diaphragm 31 driving air vibration. Furthermore, preventing the second diaphragm 31 from bending also prevents the third voice coil 32 and the fourth voice coil 33 from deflecting, thus avoiding collisions between the third voice coil 32 and the first magnetic circuit assembly 4, and between the fourth voice coil 33 and the second magnetic circuit assembly 5, improving the reliability of the speaker 30. The shape and size of the second reinforcing plate 35 are easy to set, allowing for an increase in its moment of inertia with minimal impact on the mass of the second vibrating assembly 3.

[0171] In some other embodiments, the second reinforcing sheet 35 may not be provided. Alternatively, the second diaphragm 31 may be locally thickened at the interval corresponding to the third voice coil 32 and the fourth voice coil 33, thereby increasing the moment of inertia of the second diaphragm 31.

[0172] In some embodiments, the second vibration assembly 3 may further include a fixing member 36. The fixing member 36 is fixedly connected to the opposing sidewalls of the third voice coil 32 and the fourth voice coil 33. The fixing member 36 may be a thin plate-like structure.

[0173] For example, the fastener 36 can be mounted on the end face of the third voice coil 32 and the fourth voice coil 33 opposite to the end of the second diaphragm 31.

[0174] For example, the material of the fastener 36 can be metal or plastic, such as PI (polyimide), PET (polyethylene terephthalate), PEN (polyethylene naphthalate dicarboxylate), PEEK (polyether ether ketone), etc. This embodiment does not strictly limit this.

[0175] In some examples, the fixing member 36 can be a circuit board, and the fixing member 36 can electrically connect the third voice coil 32 and the fourth voice coil 33. In this case, the fixing member 36 can both fix the third voice coil 32 and the fourth voice coil 33 and electrically connect the third voice coil 32 and the fourth voice coil 33, which helps to reduce the number of parts in the second vibration assembly 3.

[0176] At this time, since the third voice coil 32 and the fourth voice coil 33 are fixedly connected to the second diaphragm 31 respectively, and there is a gap between the third voice coil 32 and the fourth voice coil 33, when the third voice coil 32 and the fourth voice coil 33 are driven by force respectively, if the force on the third voice coil 32 and the fourth voice coil 33 is uneven or the force is too large, the second diaphragm 31 is prone to bending at the gap between the third voice coil 32 and the fourth voice coil 33, thereby affecting the sound quality of the vibration of the second diaphragm 31.

[0177] In this embodiment, the third voice coil 32 and the fourth voice coil 33 are fixedly connected by the fixing member 36, so that the third voice coil 32 and the fourth voice coil 33 remain relatively fixed, thereby increasing the moment of inertia of the second vibration component 3 and reducing the deformation of the vibration part 311 of the second diaphragm 31, which is beneficial to improving the sound quality of the second diaphragm 31. In addition, the third voice coil 32 and the fourth voice coil 33 are relatively fixed, and the two can vibrate synchronously, which makes the driving of the second diaphragm 31 more synchronized, which is beneficial to improving the sound quality of the second diaphragm 31. Moreover, the two will not deflect, which can avoid collision with the first magnetic circuit component 4 and the second magnetic circuit component 5, which is beneficial to improving the stability of the speaker 30.

[0178] In some embodiments, the first magnetic circuit assembly 4 may include a first central magnet 41 and a first side magnet 42. The first side magnet 42 is located around the first central magnet 41, and the first central magnet 41 and the first side magnet 42 may form a magnetic gap 4a in the first magnetic circuit assembly 4.

[0179] Both the first central magnet 41 and the first side magnet 42 can be generally rectangular plate structures. The first side magnet 42 surrounds the first central magnet 41 and is spaced apart from the first central magnet 41. For example, the first side magnet 42 may include three magnets arranged around the first central magnet 41 and spaced apart from the first central magnet 41.

[0180] For example, the first magnetic circuit assembly 4 may further include a first central magnetic conductor 43, which may be fixed to the side of the first central magnet 41 facing the first diaphragm 21. The first central magnetic conductor 43 is opposite to and spaced apart from the vibrating part 211 of the first diaphragm 21. The first central magnetic conductor 43 may be made of a magnetically conductive material.

[0181] In some embodiments, the second magnetic circuit assembly 5 may include a second central magnet 51 and a second side magnet 52, the second side magnet 52 being located around the second central magnet 51, and the second central magnet 51 and the second side magnet 52 forming a magnetic gap 5a in the second magnetic circuit assembly 5.

[0182] The second central magnet 51 and the second side magnet 52 can both be generally rectangular plate structures. The second side magnet 52 surrounds the second central magnet 51 and is spaced apart from the second central magnet 51. For example, the second side magnet 52 may include three magnets, which are arranged around the second central magnet 51 and spaced apart from the second central magnet 51.

[0183] For example, the first magnetic circuit assembly 4 may further include a second central magnetic conductor 53, which may be fixed to the side of the second central magnet 51 facing the first diaphragm 21. The second central magnetic conductor 53 is opposite to and spaced apart from the vibrating portion 211 of the first diaphragm 21. The second central magnetic conductor 53 may be made of a magnetically conductive material.

[0184] Please refer to the following: Figures 3 to 5 , Figure 5 yes Figure 4 An exploded view of part of the speaker module 30 shown.

[0185] In some embodiments, the basin stand 11 may include a first frame 111 and a second frame 112.

[0186] The first frame 111 can be roughly rectangular. The first frame 111 may include four wall panels connected in sequence, which are fixedly connected and enclose an installation space for installing the first vibration component 2. The first frame 111 may have a first fixing groove 1111, which may be located on the top side of the first frame 111.

[0187] For example, the first frame 111 may have a positioning part 1112. The positioning part 1112 may be located on two opposing wall panels of the first frame 111 in a first direction. Two opposing positioning parts 1112 may form a group. The positioning part 1112 may be located on the bottom side of the first frame 111 and protrude in a direction away from the top side. In some examples, there may be multiple groups of positioning parts 1112. The first direction may be parallel to the width direction Y.

[0188] The second frame 112 can be roughly rectangular. The second frame 112 may include four sequentially connected wall panels, which are fixedly connected and form an installation space for installing the first vibration assembly 2. The second frame 112 may have a second fixing groove 1121, and the first fixing groove 1111 may be located on the top side of the second frame 112.

[0189] For example, the second frame 112 may have a snap-fit ​​portion 1122. The snap-fit ​​portion 1122 may be located on two opposing wall panels of the second frame 112 in a first direction. Two opposing snap-fit ​​portions 1122 may form a group. The snap-fit ​​portion 1122 may be located on the top side of the second frame 112. In some examples, there may be multiple groups of snap-fit ​​portions 1122.

[0190] In the speaker 30, the first frame 111 and the second frame 112 are fixedly connected. The first diaphragm 21 can be fixed to the top surface of the first frame 111, and the second diaphragm 31 can be fixed to the bottom surface of the second frame 112. By separately arranging the first frame 111 and the second frame 112 to form the speaker frame 11, the manufacturing and assembly of the speaker frame 11 are facilitated.

[0191] In some embodiments, the support member 12 may include a first support portion 121, a connecting portion 122, and a second support portion 123 connected in sequence.

[0192] The first support portion 121 and the second support portion 123 are respectively recessed. For example, in the loudspeaker 30, the first support portion 121 and the second support portion 123 are respectively recessed toward the second diaphragm 31. A clearance space can be formed between the first support portion 121, the connecting portion 122, and the second support portion 123. The arrangement direction of the first support portion 121 and the second support portion 123 can be parallel to the length direction X. In this case, the first direction is perpendicular to the arrangement direction of the first diaphragm 21 and the second diaphragm 31, and also perpendicular to the arrangement direction of the first support portion 121 and the second support portion 123.

[0193] For example, the first support portion 121 can form a slot space. The first support portion 121 can be generally U-shaped. For example, the first support portion 121 can include a first side wall 1211, a bottom wall 1212, and a second side wall 1213. The first side wall 1211, the bottom wall 1212, and the second side wall 1213 of the first support portion 121 are sequentially fixedly connected and form a slot space. In the speaker 30, the bottom wall 1212 of the first support portion 121 can be located on the side of the first central magnet 41 facing away from the first diaphragm 21.

[0194] For example, the second support portion 123 may also form a slot space. The second support portion 123 may also have a generally "U" shaped structure. For example, the second support portion 123 may include a first sidewall 1231, a bottom wall 1232, and a second sidewall 1233. The first sidewall 1231, bottom wall 1232, and second sidewall 1233 of the second support portion 123 are sequentially fixedly connected and form a slot space. In the speaker 30, the bottom wall 1232 of the second support portion 123 may be located on the side of the second central magnet 51 facing away from the first diaphragm 21.

[0195] For example, the second sidewall 1213 of the first support portion 121 can be disposed opposite to the first sidewall 1231 of the second support portion 123, and the connecting portion 122 is fixedly connected to the second sidewall 1213 of the first support portion 121 and the first sidewall 1231 of the second support portion 123. A clearance space is formed between the second sidewall 1213 of the first support portion 121, the connecting portion 122, and the first sidewall 1231 of the second support portion 123. The heights of the first support portion 121 and the second support portion 123 in the thickness direction Z can be substantially the same.

[0196] The first central magnet 41 can be installed on the first support portion 121, and the second central magnet 51 can be installed on the second support portion 123. For example, the first central magnet 41 can be fixed to the bottom wall 1212 of the first support portion 121, with a gap between it and the first side wall 1211 and the second side wall 1213 of the first support portion 121. The second central magnet 51 can be fixed to the bottom wall 1232 of the second support portion 123, with a gap between it and the first side wall 1231 and the second side wall 1233 of the second support portion 123.

[0197] The third voice coil 32 can surround the first support 121, and the fourth voice coil 33 can surround the second support 123. Parts of the third voice coil 32 and the fourth voice coil 33 can be located in the clearance space. The first voice coil 22 and the second voice coil 23 are located on both sides of the clearance space.

[0198] For example, the third voice coil 32 can be located outside the first support portion 121 and surround the first support portion 121. Part of the structure of the third voice coil 32 can be opposite to the first sidewall 1211 of the first support portion 121, and another part of the structure of the third voice coil 32 can be opposite to the second sidewall 1213 of the first support portion 121; that is, part of the structure of the third voice coil 32 is located in the clearance space. It is readily understood that since the third voice coil 32 is located in the magnetic gap 4a of the first magnetic circuit assembly 4, the third voice coil 32 can surround the first central magnet 41.

[0199] The first voice coil 22 is located in the magnetic gap 4a of the first magnetic circuit assembly 4, and the first voice coil 22 can directly surround the first central magnet 41. Part of the structure of the first voice coil 22 is located between the first central magnet 41 and the first sidewall 1211 of the first support portion 121, and another part of the structure of the first voice coil 22 is located between the first central magnet 41 and the second sidewall 1213 of the first support portion 121.

[0200] Similarly, exemplarily, the fourth voice coil 33 can be located outside the second support portion 123 and surround the first support portion 121. Part of the structure of the fourth voice coil 33 can be opposite to the first sidewall 1211 of the first support portion 121, and another part of the structure of the fourth voice coil 33 can be opposite to the second sidewall 1213 of the first support portion 121; that is, part of the structure of the fourth voice coil 33 is located in the clearance space. Since the fourth voice coil 33 is located in the magnetic gap 4a of the first magnetic circuit assembly 4, the fourth voice coil 33 surrounds the first central magnet 41.

[0201] The fourth voice coil 33 is located in the magnetic gap 5a of the second magnetic circuit assembly 5, and the fourth voice coil 33 can directly surround the second central magnet 51. Part of the structure of the fourth voice coil 33 is located between the second central magnet 51 and the first sidewall 1231 of the second support portion 123, and another part of the structure of the fourth voice coil 33 is located between the second central magnet 51 and the second sidewall 1233 of the second support portion 123.

[0202] In this embodiment, by setting a structure of a first support portion 121, a second support portion 123, and a connecting portion 122, the first support portion 121 fixes the first central magnet 41, and the second support portion 123 fixes the second central magnet 51; the first voice coil 22 and the third voice coil 32 surround the first central magnet 41, and the connecting portion 122 avoids the third voice coil 32, which is equivalent to reusing the first magnetic circuit assembly 4; and the second voice coil 23 and the fourth voice coil 33 surround the second central magnet 51, and the connecting portion 122 avoids the fourth voice coil 33, which is equivalent to reusing the second magnetic circuit assembly 5. Since the first magnetic circuit assembly 4 and the second magnetic circuit assembly 5 are reused, the number of magnetic components can be reduced, the number of parts can be reduced, and the space in the thickness direction Z of the speaker 30 can be fully utilized, which is beneficial to increasing the vibration distance of the first diaphragm 21 and the second diaphragm 31, thereby improving the sound quality of the speaker 30; or it is beneficial to reduce the thickness of the speaker 30, thereby facilitating the thinning of the speaker 30. In addition, the first sidewall 1211 and the second sidewall 1213 of the first support portion 121 isolate the first voice coil 22 and the third voice coil 32 to prevent them from colliding. The first sidewall 1231 and the second sidewall 1233 of the second support portion 123 isolate the second voice coil 23 and the fourth voice coil 33 to prevent them from colliding, thereby improving the reliability of the loudspeaker 30.

[0203] In some embodiments, the support member 12 may further include a first fixing part 124 and a second fixing part 125. The first fixing part 124 connects to the first support part 121, and the second fixing part 125 connects to the second support part 123; the first fixing part 124 and the second fixing part 125 are respectively fixedly connected to the basin frame 11. In this case, the first fixing part 124 and the second fixing part 125 are used to connect the first support part 121 and the second support part 123 to the basin frame 11, thereby fixing the first fixing part 124 and the second fixing part 125. Furthermore, since the inner side of the basin frame 11 has a large space, the support member 12 helps to strengthen the structural strength of the basin frame 11 and prevents the support member 12 from deforming under stress in the arrangement direction of the first fixing part 124 and the second fixing part 125. For example, when the first fixing part 124 and the second fixing part 125 are arranged along the length direction X, the support member 12 provides a greater degree of reinforcement to the basin frame 11 in the length direction X.

[0204] Additionally, in the speaker 30, the first side magnet 42 can be partially mounted on the surface of the first fixing part 124 facing the second diaphragm 31, and the first center magnet 41 can be mounted on the surface of the first support part 121 facing the first diaphragm 21; the second side magnet 52 can be partially mounted on the surface of the second fixing part 125 facing the second diaphragm 31, and the first center magnet 41 can be mounted on the surface of the second support part 123 facing the first diaphragm 21; the support member 12 is magnetically conductive. For example, the first sidewall 1211 of the first support part 121 can be located in the magnetic gap 4a of the first magnetic circuit assembly 4 (i.e., between the first side magnet 42 and the first center magnet 41), and the first sidewall 1231 of the second support part 123 can be located in the magnetic gap 5a of the second magnetic circuit assembly 5 (between the second side magnet 52 and the second center magnet 51).

[0205] At this time, the support member 12 extends from the bottom side of the first central magnet 41 to the top side of the first side magnet 42. Since the support member 12 is magnetically conductive, it facilitates the formation of the magnetic circuit of the first magnetic circuit assembly 4. It is understood that the magnetic poles on the bottom side of the first central magnet 41 and the magnetic poles on the top side of the first side magnet 42 have the same magnetism.

[0206] In some embodiments, the support member 12 may include a support plate 12a and an annular plate 12b.

[0207] The first fixing part 124, the first supporting part 121, the connecting part 122, the second supporting part 123, and the second fixing part 125 can be formed on the support plate 12a. The support plate 12a can be a generally bent plate-shaped member.

[0208] For example, the support plate 12a may be made of a magnetic material to be magnetically conductive.

[0209] For example, the support plate 12a can be a one-piece molded structural component. For instance, the support component 12a can be formed by bending or stamping sheet metal. In this case, the support plate 12a has good rigidity, strength, and other supporting performance, and also has good magnetic conductivity.

[0210] For example, the connecting portion 122 of the support plate 12a may be flush with the first fixing portion 124 and the second fixing portion 125 to facilitate the forming of the support member 12.

[0211] The annular plate 12b can be generally a plate-shaped member with a through-center. The through-center of the annular plate 12b forms a first clearance hole 126. The annular plate 12b can be generally a rectangular plate-shaped structure.

[0212] For example, the annular plate 12b may be made of a magnetically conductive material. However, it is not strictly limited to this.

[0213] In the speaker 30, a support plate 12a can be fixed to the frame 11. The support plate 12a and the annular plate 12b can be spaced apart so that they can both be fixed to the frame 11 respectively. In some examples, the connecting portion 122 of the support plate 12a can be flush with the annular plate 12b. The first clearance hole 126 of the annular plate 12b can have a shape approximately the same as that of the support plate 12a. The first voice coil 22 and the second voice coil 23 can be located in the first clearance hole 126, which provides space for the placement and vibration of the first voice coil 22 and the second voice coil 23.

[0214] Furthermore, the support plate 12a can be an integral structural component with the frame 11. For example, the support plate 12a and the frame 11 can be formed as an integral structural component through injection molding. In this case, the connection between the support plate 12a and the frame 11 is reliable, resulting in high overall strength of the structural component, making it less prone to deformation. It also provides good support for the first magnetic circuit assembly 4, the second magnetic circuit assembly 5, the first vibration assembly 2, and the second vibration assembly 3, thereby ensuring that the speaker 30 has good and stable sound quality.

[0215] Additionally, the annular plate 12b can be fixed to the frame 11. The annular plate 12b can be an integral structural component with the frame 11. For example, the annular plate 12b can be located in the first fixing groove 1111 of the first frame 111 and formed integrally with the frame 11 by injection molding. Similarly, the annular plate 12b can further enhance the strength of the structural component, thereby ensuring the sound quality of the speaker 30.

[0216] In this embodiment, the support member 12 is formed separately from a support plate 12a and an annular plate 12b, which facilitates the separate fabrication of the support plate 12a and the annular plate 12b. Furthermore, the separate fabrication of the support plate 12a and the annular plate 12b allows the support plate 12a to have a wider width in the width direction Y, resulting in better support capacity and thus more reliable support for the first magnetic circuit assembly 4 and the second magnetic circuit assembly 5. In other words, this embodiment allows for a more reasonable structure for the support plate 12a, giving it better manufacturability, support capacity, and magnetic conductivity.

[0217] In some other embodiments, the support plate 12a and the annular plate 12b can be integral structural components.

[0218] In some embodiments, the housing 1 may also include a magnetic conductor 13.

[0219] For example, the magnetic conductor 13 can be generally a through-hole structure. The through-hole in the center of the magnetic conductor 13 forms a second clearance hole 131. The magnetic conductor 13 can be generally a rectangular plate structure. The size and shape of the magnetic conductor 13 can be substantially the same as those of the annular plate 12b.

[0220] For example, the magnetic conductor 13 may be made of a magnetic material.

[0221] In the speaker 30, the magnetic conductor 13 can be fixed to the frame 11. The annular plate 12b can be an integral structural component with the frame 11. For example, the annular plate 12b can be located in the second fixing groove 1121 of the second frame 112 and formed integrally with the frame 11 by injection molding. The annular plate 12b can also further enhance the strength of the structural component, making the overall strength of the structural component higher and less prone to deformation, thereby ensuring that the speaker 30 has good and stable sound quality.

[0222] Please refer to the following: Figure 3 , Figure 6 and Figure 7 , Figure 6 It is along Figure 2 A sectional view cut at point BB. Figure 7 It is along Figure 2 A sectional view cut at point CC.

[0223] In some embodiments, the first side magnet 42 and the second side magnet 52 are respectively fixed to the surface of the annular plate 12b facing the second diaphragm 31, that is, the annular plate 12b is located on the side of the first side magnet 42 and / or the second side magnet 52 facing the first diaphragm 21.

[0224] For example, such as Figure 6 All three magnets of the first side magnet 42 are fixed to the same side surface of the annular plate 12b. It is easy to understand that the annular plate 12b is located around the first central magnet 41, and surrounds the first voice coil 22. At this time, the annular plate 12b conducts magnetism to the first side magnet 42 and forms a magnetic gap with the first central magnet 41. Since the annular plate 12b is located on the side of the first magnetic circuit assembly 4 facing the first diaphragm 21, the first voice coil 22 is closer to the annular plate 12b, making it easier for the first magnetic circuit assembly 4 to drive the first voice coil 22.

[0225] For example, such as Figure 7 All three magnets of the second side magnet 52 are fixed to the same side surface of the annular plate 12b. It is easy to understand that the annular plate 12b is located around the second central magnet 51, and surrounds the second voice coil 23. At this time, the annular plate 12b conducts magnetism to the second side magnet 52 and forms a magnetic gap with the second central magnet 51. Since the annular plate 12b is located on the side of the second magnetic circuit assembly 5 facing the second diaphragm 31, the second voice coil 23 is closer to the annular plate 12b, making it easier for the second magnetic circuit assembly 5 to drive the second voice coil 23.

[0226] In some embodiments, the magnetic conductor 13 is located between the first magnetic circuit assembly 4 and the second diaphragm 31, and the first side magnet 42 and the second side magnet 52 are respectively fixed to the surface of the magnetic conductor 13 facing the first diaphragm 21, that is, the magnetic conductor 13 is located on the side of the first side magnet 42 facing the second diaphragm 31.

[0227] For example, such as Figure 6 All three magnets of the first side magnet 42 are fixed to the same side surface of the magnetic guide 13. It is easy to understand that the magnetic guide 13 is located around the first central magnet 41 and surrounds the third voice coil 32. At this time, the magnetic guide 13 conducts magnetism to the first side magnet 42 and forms a magnetic gap with the first central magnet 41. Because the magnetic guide 13 is located on the side of the first magnetic circuit assembly 4 facing the second diaphragm 31, the third voice coil 32 is closer to the magnetic guide 13, making it easier for the first magnetic circuit assembly 4 to drive the third voice coil 32.

[0228] At this time, the first side magnet 42 is located between the annular plate 12b and the magnetic conductor 13. The annular plate 12b and the magnetic conductor 13 fix the first side magnet 42, which is relatively reliable. Furthermore, the annular plate 12b and the magnetic conductor 13 conduct magnetism to the two magnetic poles of the first side magnet 42.

[0229] For example, such as Figure 7 All three magnets of the second side magnet 52 are fixed to the same side surface of the magnetic guide 13. It is easy to understand that the magnetic guide 13 is located around the second center magnet 51 and surrounds the fourth voice coil 33. At this time, the magnetic guide 13 conducts magnetism to the second side magnet 52 and forms a magnetic gap with the second center magnet 51. Because the magnetic guide 13 is located on the side of the second magnetic circuit assembly 5 facing the second diaphragm 31, the fourth voice coil 33 is closer to the magnetic guide 13, making it easier for the second magnetic circuit assembly 5 to drive the fourth voice coil 33.

[0230] At this time, the second side magnet 52 is located between the annular plate 12b and the magnetic conductor 13. The annular plate 12b and the magnetic conductor 13 fix the second side magnet 52, which is relatively reliable. Furthermore, the annular plate 12b and the magnetic conductor 13 conduct magnetism to the two magnetic poles of the second side magnet 52.

[0231] Please refer to the following: Figure 8 and Figure 9 , Figure 8 It is along Figure 2 A front view cut at point AA in the middle. Figure 9 It is along Figure 2 A sectional view cut at point DD.

[0232] In some embodiments, a magnetic gap may be formed between the first central magnet 41 and the second central magnet 51. The first voice coil 22, the second voice coil 23, the third voice coil 32, and the fourth voice coil 33 may each be partially located between the first central magnet 41 and the second central magnet 51.

[0233] That is, there may be no other magnets between the first central magnet 41 and the second central magnet 51, and the first central magnet 41 and the second central magnet 51 are adjacent and close to each other.

[0234] For example, both the first voice coil 22 and the third voice coil 32 can surround the first central magnet 41. Each of the first and third voice coils has a portion of its structure located within the magnetic gap 4a of the first magnetic circuit assembly 4, and each of the first and third voice coils has a portion of its structure located between the first central magnet 41 and the second central magnet 51. Similarly, both the second voice coil 23 and the fourth voice coil 33 can surround the second central magnet 51. Each of the second and fourth voice coils has a portion of its structure located within the magnetic gap 5a of the second magnetic circuit assembly 5, and each of the second and fourth voice coils has a portion of its structure located between the first central magnet 41 and the second central magnet 51.

[0235] At this time, since the distance between the first central magnet 41 and the second central magnet 51 is relatively close, the spacing between the first voice coil 22 and the second voice coil 23 can be smaller, so that the contact area between the first voice coil 22 and the second voice coil 23 and the first diaphragm 21 is large. When the first diaphragm 21 is driven by the first voice coil 22 and the second voice coil 23, the unstressed area in the middle of the first diaphragm 21 is small, and the possibility of bending deformation in the middle of the first diaphragm 21 is small. At this time, the moment of inertia of the first vibration component 2 is large, and it has better vibration performance. The sound quality of the sound produced by the vibration of the first vibration component 2 is also better.

[0236] Similarly, the gap between the third voice coil 32 and the fourth voice coil 33 can be smaller, so that the contact area between the third voice coil 32 and the fourth voice coil 33 and the second diaphragm 31 is larger. When the second diaphragm 31 is driven by the third voice coil 32 and the fourth voice coil 33, the unloaded area in the middle of the second diaphragm 31 is smaller, and the possibility of bending deformation in the middle of the second diaphragm 31 is smaller. At this time, the second vibration component 3 has a larger moment of inertia, better vibration performance, and better sound quality of the second vibration component 3.

[0237] For example, the distance between the first central magnet 41 and the second central magnet 51 can be less than 5 mm. For instance, the distance between the first central magnet 41 and the second central magnet 51 can be 3 mm, 3.5 mm, 4 mm, etc. Alternatively, the distance between the first central magnet 41 and the second central magnet 51 can be greater than 1.6 mm to accommodate other structures. In this case, the first central magnet 41 and the second central magnet 51 are closer together, making fuller use of the internal space of the speaker 30.

[0238] For example, the distance between the third voice coil 32 and the fourth voice coil 33 can be less than 2 mm. For instance, the distance between the third voice coil 32 and the fourth voice coil 33 can be 1.5 mm. Alternatively, the distance between the third voice coil 32 and the fourth voice coil 33 can be greater than 0.1 mm to facilitate their installation. In this case, the third voice coil 32 and the fourth voice coil 33 are almost in contact, which helps to increase the moment of inertia of the second vibration component 3, thereby improving the sound quality of the speaker 30.

[0239] It is understandable that the same magnetic poles of the first central magnet 41 and the second central magnet 51 can be set in the same direction.

[0240] For example, the first central magnet 41 may have its N pole facing the first diaphragm 21 and its S pole facing the second diaphragm 31, and the first side magnet 42 may have its S pole facing the first diaphragm 21 and its N pole facing the second diaphragm 31. Similarly, the second central magnet 51 may have its N pole facing the first diaphragm 21 and its S pole facing the second diaphragm 31, and the second side magnet 52 may have its S pole facing the first diaphragm 21 and its N pole facing the second diaphragm 31. In this case, the support plate 12a can contact and conduct magnetism with the S poles of the first side magnet 42, the first central magnet 41, the second central magnet 51, and the second side magnet 52, thereby facilitating the formation of the magnetic gap 4a of the first magnetic circuit assembly 4 and the magnetic gap 5a of the second magnetic circuit assembly 5. Of course, the magnetic poles of the first central magnet 41, the first side magnet 42, the second central magnet 51, and the second side magnet 52 may be arranged in the opposite direction to the magnetic poles in this example.

[0241] In some other embodiments, a magnet may be present between the first central magnet 41 and the second central magnet 51, the magnetic poles of which may be opposite to the magnetic poles of the first central magnet 41. The magnet may be located in the clearance space formed by the first support portion 121, the connecting portion 122 and the second support portion 123. The magnet may be reused as a magnet for the first side magnet 42 and a magnet for the second side magnet 52.

[0242] In some embodiments, in the arrangement direction of the first diaphragm 21 and the second diaphragm 31, the projection of the third voice coil 32 surrounds the projection of the first voice coil 22, and the projection of the fourth voice coil 33 surrounds the projection of the second voice coil 23. That is, the area of ​​the second voice coil 23 is larger than the area of ​​the first voice coil 22, and the area of ​​the third voice coil 32 is larger than the area of ​​the first voice coil 22. The arrangement direction of the first diaphragm 21 and the second diaphragm 31 can be parallel to the thickness direction Z. In this case, the distance between the third voice coil 32 and the fourth voice coil 33 can be smaller than the distance between the first voice coil 22 and the second voice coil 23.

[0243] In the arrangement direction (i.e., the thickness direction Z) of the first diaphragm 21 and the second diaphragm 31, the vibration height of the first voice coil 22 and the vibration height of the third voice coil 32 can at least partially coincide, and the vibration height of the second voice coil 23 and the vibration height of the fourth voice coil 33 can at least partially coincide.

[0244] For example, in the thickness direction Z, during the vibration of the first diaphragm 21 and the second diaphragm 31, the highest point of the third voice coil 32 moving away from the second diaphragm 31 can be higher than the highest point of the first voice coil 22 moving away from the first diaphragm 21, and the highest point of the fourth voice coil 33 moving away from the second diaphragm 31 can be higher than the highest point of the second voice coil 23 moving away from the first diaphragm 21.

[0245] When the first diaphragm 21 and the second diaphragm 31 are not vibrating, the end of the first voice coil 22 away from the first diaphragm 21 can be higher than the end of the third voice coil 32 away from the second diaphragm 31, and the end of the second voice coil 23 away from the first diaphragm 21 can be higher than the end of the fourth voice coil 33 away from the second diaphragm 31. However, this is not strictly limited.

[0246] At this point, the third voice coil 32 is essentially fitted outside the first voice coil 22, thus facilitating their placement within the magnetic gap 4a of the first magnetic circuit assembly 4. Similarly, the fourth voice coil 33 is fitted outside the second voice coil 23, facilitating their placement within the magnetic gap 5a of the second magnetic circuit assembly 5. Furthermore, the third voice coil 32 and the first voice coil 22 reuse the vibration space, while the fourth voice coil 33 and the second voice coil 23 reuse the vibration space. This allows the first voice coil 22, the second voice coil 23, the third voice coil 32, and the fourth voice coil 33 to have a greater vibration distance within a limited height, thereby improving the low-frequency sound quality of the speaker 30.

[0247] In some embodiments, the length directions of the first voice coil 22 and the second voice coil 23 are parallel to the length direction of the speaker 30, and the arrangement direction of the first voice coil 22 and the second voice coil 23 is parallel to the length direction of the speaker 30; the length directions of the third voice coil 32 and the fourth voice coil 33 are parallel to the length direction of the speaker 30, and the arrangement direction of the third voice coil 32 and the fourth voice coil 33 is parallel to the length direction of the speaker 30.

[0248] The loudspeaker 30 may have a large aspect ratio, meaning it has a long and slender structure. For example, the aspect ratio of the loudspeaker 30 may be greater than 4:1, such as 28:7, 30:7, or 35:8. For a typical single voice coil driven diaphragm, the aspect ratio of the voice coil may be much greater than 4:1, making the voice coil winding difficult.

[0249] In this embodiment, the orientation of the first voice coil 22 and the second voice coil 23, as well as their arrangement, are more compatible with the length direction of the speaker 30. This facilitates the driving of the first diaphragm 21 with an appropriate number of voice coils and simplifies the structure of the speaker 30. Furthermore, the smaller aspect ratio of the first and second voice coils 22 and 23 facilitates their winding, thereby simplifying the manufacture of the speaker 30. Similarly, the orientation of the third and fourth voice coils 32 and their arrangement are also more compatible with the length direction of the speaker 30, simplifying the structure and facilitating its manufacture. For example, the aspect ratio of the first, second, and third voice coils 22 and / or the fourth voice coil 33 can be less than 6:1, making winding easier.

[0250] Please refer to the following: Figure 5 and Figure 10 , Figure 10 It is along Figure 2 A sectional view cut at point EE.

[0251] In some embodiments, the connecting portion 122 may have a first end 1221, a main body portion 1222, and a second end 1223. The first end 1221 and the second end 1223 are arranged along a first direction, which is perpendicular to the arrangement direction of the first diaphragm 21 and the second diaphragm 31, and also perpendicular to the arrangement direction of the first support portion 121 and the second support portion 123; that is, the first direction is parallel to the width direction Y. For example, the first diaphragm 21 and the second diaphragm 31 are arranged along the thickness direction Z, the first support portion 121 and the second support portion 123 are arranged along the length direction X, and the first end 1221 and the second end 1223 of the connecting portion 122 are arranged along the width direction Y.

[0252] The first end 1221, the main body 1222, and the second end 1223 of the connecting portion 122 can be fixedly connected in sequence. The first end 1221 and the second end 1223 are respectively bent relative to the main body 1222 so that the projection of the first end 1221 and the second end 1223 in the width direction Y has a larger area.

[0253] In the speaker 30, the first end 1221 and the second end 1223 are respectively fixedly connected to two opposite sidewalls of the housing 1 in a first direction. For example, the first end 1221 and the second end 1223 of the connecting part 122 can be embedded in the sidewall of the frame 11, thereby being fixedly connected to the sidewall of the frame 11.

[0254] For the basin frame 11, the basin frame 11 has a frame structure, and the inner side of the basin frame 11 is the installation space. Both the first magnetic circuit assembly 4 and the second magnetic circuit assembly 5 have magnetic gaps. Therefore, the first central magnet 41 and the first side magnet 42 attract each other in the first direction (width direction Y), and the second central magnet 51 and the second side magnet 52 attract each other in the first direction (width direction Y). This attraction will act on the two side walls of the basin frame 11 in the first direction, causing the two side walls to tend to move closer together and undergo slight deformation. When the attraction is large, the deformation of the two side walls of the basin frame 11 will increase, which may cause the magnetic gap 4a of the first magnetic circuit assembly 4 and the magnetic gap 5a of the second magnetic circuit assembly 5 to fail. Especially when the dimension of the shell 1 in the length direction X is larger than its dimension in the width direction Z, the basin frame 11 is more prone to deformation.

[0255] In this embodiment, by setting a first end 1221 and a second end 1223 of the connecting part 122 and fixing the first end 1221 and the second end 1223 to the basket frame 11 respectively, the two opposite side walls of the basket frame 11 are supported in the first direction, making the basket frame 11 less prone to deformation, thereby giving the basket frame 11 higher reliability and ensuring the sound quality of the speaker 30.

[0256] In some other embodiments, the first end 1221 and the second end 1223 can respectively abut against two opposite sidewalls of the housing 1 in a first direction. In this case, the first end 1221 and the second end 1223 may not be fixedly connected to the sidewalls of the basin frame 11. The first end 1221 and the second end 1223 of the connecting portion 122 can abut against the basin frame 11 of the housing 1 by assembling the basin frame 11 and the support member 12. In this case, the basin frame 11 and the support member 12 are easy to assemble, which helps to reduce costs.

[0257] In some embodiments, as described above, the first frame 111 may have a positioning portion 1112, and the second frame 112 may have a snap-fit ​​portion 1122. In the speaker 30, the first end 1221 and the second end 1223 of the connecting portion 122 are fixed to the first frame 111. The positioning portion 1112 protrudes toward the second diaphragm 31, and the positioning portion 1112 is located between the snap-fit ​​portions 1122 in a first direction, abutting against the snap-fit ​​portions 1122.

[0258] At this time, the connecting part 122 can support the first frame 111 in the first direction (width direction Y) to avoid deformation of the first frame 111. Furthermore, by providing the positioning part 1112 and the snap-fit ​​part 1122, the second frame 112 can be supported by the first frame 111 in the first direction, thereby avoiding deformation of the second frame 112, making the support of the housing 1 for other components more reliable, and making the sound quality of the speaker 30 more stable.

[0259] Please see Figure 11 , Figure 11 yes Figure 4 The diagram shows the structure of the second vibration component 3 in some other embodiments. Figure 11 The second vibration component 3 shown may include Figure 4 The second vibration component 3 shown below has most of the technical features. The following mainly describes the differences between the two, while the most common technical contents of the two will not be repeated.

[0260] Figure 11 The second vibration component 3 in the embodiment and Figure 4 The main difference in the second vibration component 3 of the embodiments lies in the position of the fixing member 36. In some embodiments, in the arrangement direction of the first diaphragm 21 and the second diaphragm 31, the fixing member 36 may be located in the middle of the third voice coil 32 and the fourth voice coil 33.

[0261] For example, in the arrangement direction of the first diaphragm 21 and the second diaphragm 31 (i.e., the thickness direction Z), the distance between the end of the third voice coil 32 connected to the second diaphragm 31 and the fixing member 36 is the first dimension a, and the distance between the fixing member 36 and the end of the third voice coil 32 away from the second diaphragm 31 is the second dimension b. The first dimension a and the second dimension b can each be greater than 1 mm.

[0262] At this time, the installation of the fixing member 36 will not increase the thickness of the second vibration component 3, and the fixing member 36 is spaced from both ends of the third voice coil 32 and the fourth voice coil 33, thus making it easy to install the fixing member 36.

[0263] Please see Figure 12 , Figure 12 yes Figure 4 The diagram shows the structure of the second vibration component 3 in some other embodiments. Figure 12The second vibration component 3 shown may include Figure 4 The second vibration component 3 shown below has most of the technical features. The following mainly describes the differences between the two, while the most common technical contents of the two will not be repeated.

[0264] Figure 12 The second vibration component 3 in the embodiment and Figure 4 The main difference between the second vibration component 3 in the embodiments lies in the shape of the fixing member 36. In some embodiments, the fixing member 36 has a through hole 361, and the area of ​​the through hole 361 is greater than half the area of ​​the fixing member 36 in the arrangement direction of the first diaphragm 21 and the second diaphragm 31 (i.e., the thickness direction Z). The fixing member 36 can be roughly in the shape of an "I".

[0265] The through hole 361 can be located in the middle of the fastener 36. The through hole 361 can be roughly rectangular. By creating the through hole 361, material can be removed from the fastener 36, thereby reducing its weight. The sidewall of the through hole 361 can form connecting ribs or supporting ribs for the fastener 36, giving the fastener 36 good support capacity with low weight.

[0266] In some other embodiments, the retainer 36 can connect to a greater number of voice coils. For example, four voice coils connected to a diaphragm can be arranged in two rows and two columns, and the retainer 36 can be in a cross shape, connecting all four voice coils simultaneously.

[0267] Please see Figure 13 , Figure 13 yes Figure 4 The diagram shows the structure of the second vibration component 3 in some embodiments. Figure 13 The second vibration component 3 shown may include Figure 4 The second vibration component 3 shown below has most of the technical features. The following mainly describes the differences between the two, while the most common technical contents of the two will not be repeated.

[0268] Figure 13 The second vibration component 3 in the embodiment and Figure 4 The main difference in the second vibration component 3 of the embodiments lies in the material of the fixing member 36. In some embodiments, the fixing member 36 can be a colloid. The fixing member 36 can be formed by methods such as dispensing adhesive.

[0269] For example, the fixing member 36 may include multiple adhesive droplets, which are respectively fixedly connected to the third voice coil 32 and the fourth voice coil 33. In some other embodiments, the fixing member 36 may also be a strip-shaped adhesive strip, and the length of the fixing member 36 may be close to the length of the interval between the third voice coil 32 and the fourth voice coil 33. This embodiment does not strictly limit the shape of the fixing member 36.

[0270] By setting the fixing part 36 to a colloid, it is easier to form the fixing part 36 when assembling the second vibration component 3, which helps to reduce the number of parts in the second vibration component 3 and save material costs.

[0271] Please see Figure 14 , Figure 14 yes Figure 1 The diagram shows a structural schematic of some other embodiments of the speaker 30.

[0272] In some embodiments, Figure 14 The speaker 30 in the embodiment and Figure 3 The difference in the loudspeaker 30 of the embodiment is that the first vibration component 2 may also include more voice coils, the second vibration component 3 may also include more voice coils, and the loudspeaker 30 may include more magnetic circuit components.

[0273] For example, the loudspeaker 30 may further include a third magnetic circuit assembly 6, the first vibration assembly 2 may further include a fifth voice coil 26, and the second vibration assembly 3 may further include a sixth voice coil 37. The third magnetic circuit assembly 6 is fixed to the support member 12, one end of the fifth voice coil 26 is fixedly connected to the first diaphragm 21, and the other end is located in the magnetic gap of the third magnetic circuit assembly 6, and one end of the sixth voice coil 37 is fixedly connected to the second diaphragm 31, and the other end is located in the magnetic gap of the third magnetic circuit assembly 6.

[0274] Understandably, the third magnetic circuit assembly 6 can be fixed to the housing 1. The third magnetic circuit assembly 6 can be located on the side of the second magnetic circuit assembly 5 opposite to the first magnetic circuit assembly 4. The fifth voice coil 26 is located on the side of the second voice coil 23 opposite to the first voice coil 22. The sixth voice coil 37 is located on the side of the fourth voice coil 33 opposite to the third voice coil 32.

[0275] At this time, the fifth voice coil 26 and the sixth voice coil 37 are located in the magnetic gap of the third magnetic circuit assembly 6, which is equivalent to reusing the third magnetic circuit assembly 6. Furthermore, the first diaphragm 21 is driven by the first voice coil 22, the second voice coil 23 and the fifth voice coil 26; the second diaphragm 31 is driven by the third voice coil 32, the fourth voice coil 33 and the sixth voice coil 37, which is beneficial for setting up a loudspeaker 30 with a larger aspect ratio.

[0276] It is understood that the support member 12 may have a third support portion 127, and the second support portion 123 and the third support portion 127 are connected by a connecting portion 122. The second fixing portion 125 may be connected to the third support portion 127. The structure of the third support portion 127 can refer to the structure of the first support portion 121, and will not be described again in this embodiment.

[0277] Please see Figure 15 , Figure 15 yes Figure 1 The speaker 30 shown is a schematic diagram illustrating the sound generation principle in some embodiments.

[0278] In some embodiments, the first vibration component 2 and the second vibration component 3 of the loudspeaker 30 can vibrate and produce sound respectively. The first diaphragm 21 and the second diaphragm 31 can work together to enable the loudspeaker 30 to have an acoustic dipole mode and an acoustic monopole mode.

[0279] For example, in the acoustic dipole mode, the first diaphragm 21 and the second diaphragm 31 have the same vibration frequency and amplitude, and the same vibration direction. Therefore, the sound waves emitted by the first diaphragm 21 and the second diaphragm 31 are of equal magnitude and opposite in phase (i.e., the phase difference is 180°). In other words, the loudspeaker 30 is a dipole loudspeaker at this time, which can form a dipole sound field.

[0280] When the speaker 30 emits sound, two sounds with opposite phases are emitted from the first diaphragm 21 and the second diaphragm 31, respectively, and transmitted to the outside of the speaker 30. Specifically, the sound emitted from the first diaphragm 21 is transmitted from the temple 102 (reference). Figure 1 The sound emitted from the top of the second diaphragm 31 is emitted from the temple 102 (reference). Figure 1 It comes from the bottom of the ).

[0281] like Figure 15 The first diaphragm 21 and the second diaphragm 31 exhibit a figure-eight directional characteristic. Based on the principle of acoustic dipoles, ensuring the human ear is within the effective hearing range and that the first diaphragm 21 and the second diaphragm 31 have low loudness is sufficient to meet the wearer's auditory needs. When sound travels to a distance, the two equal-amplitude, anti-phase sound waves cancel each other out in the far field, forming a cancellation region, achieving far-field noise reduction and effectively improving the far-field privacy of the electronic device 100.

[0282] For example, in the acoustic monopole mode, the first diaphragm 21 and the second diaphragm 31 have the same vibration frequency and amplitude, but opposite vibration directions. Therefore, the sound waves emitted by the first diaphragm 21 and the second diaphragm 31 are equal in magnitude and have the same phase. That is to say, the speaker 30 is a monopole speaker 30 at this time, which can form a monopole sound field. At this time, the speaker 30 can have a greater amount of air compression, thereby providing greater loudness and allowing the wearer to obtain a better in-ear loudness experience, thus improving the user experience.

[0283] The above example uses AR glasses as an example of an electronic device. The following example uses a mobile phone as an example of an electronic device.

[0284] Please see Figure 16 , Figure 16 This is a schematic diagram of the structure of another electronic device provided in an embodiment of this application.

[0285] For example, the electronic device 100 may include a housing 50, a display screen 60, and a speaker 30. The housing 50 protects the internal electronic components of the electronic device 100 and serves as the body of the electronic device 100. The housing 50 may include a frame 501 and a back cover 502, with the frame 501 connected to and surrounding the back cover 502. For example, the display screen 60 may be fixed to the frame 501. The display screen 60 is disposed opposite to the back cover 502, and the display screen 60, together with the frame 501 and the back cover 502, can enclose the internal space of the electronic device 100. The display screen 60 may be a flexible display screen or a rigid display screen. The display screen 60 can be an organic light-emitting diode (OLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MicroLED) display screen, a quantum dot light-emitting diode (QLED) display screen, a liquid crystal display (LCD) display screen, etc.

[0286] The frame 501 may be provided with a sound outlet 503. The number of sound outlets 503 may be one or more. Figure 16 The diagram shows multiple sound outlets 503. In other embodiments, the sound outlets 503 may also be located at the connection between the back cover 502, the display screen 60, the frame 501 and the display screen 60, or the connection between the frame 501 and the back cover 502.

[0287] For example, the speaker 30 can be mounted in the housing 50, located inside the electronic device 100. Figure 16 The speaker 30 is indicated by a dotted line. The speaker 30 can play sound to the outside of the electronic device 100 through the sound outlet 503.

[0288] The specific structural configuration of the speaker 30 can be found in [reference]. Figures 2 to 15 The relevant solutions in the embodiments will not be described again in this embodiment.

[0289] It should be noted that, Figure 16 Some components of the electronic device 100 are shown only schematically; the actual shape and size of these components are not subject to change. Figure 16 As limited. It should be understood that when the electronic device 100 is in other forms, the electronic device 100 may not include the display screen 60, or the electronic device 100 may include multiple display screens 60.

[0290] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0291] It should be noted that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0292] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A loudspeaker (30), characterized in that, It includes a housing (1), a first vibration assembly (2), a second vibration assembly (3), a first magnetic circuit assembly (4), and a second magnetic circuit assembly (5); The housing (1) includes a basin frame (11) and a support member (12). The support member (12) is fixed to the inner side of the basin frame (11). The first magnetic circuit assembly (4) and the second magnetic circuit assembly (5) are respectively fixed to the support member (12) at intervals. The first vibration component (2) includes a first diaphragm (21), a first voice coil (22) and a second voice coil (23). The first diaphragm (21) is fixed to the housing (1) and located on one side of the support member (12). One end of the first voice coil (22) is fixedly connected to the first diaphragm (21), and the other end is located in the magnetic gap of the first magnetic circuit component (4). One end of the second voice coil (23) is fixedly connected to the first diaphragm (21), and the other end is located in the magnetic gap of the second magnetic circuit component (5). The second vibration component (3) includes a second diaphragm (31), a third voice coil (32) and a fourth voice coil (33). The second diaphragm (31) is fixed to the housing (1) and located on the other side of the support (12). One end of the third voice coil (32) is fixedly connected to the second diaphragm (31), and the other end is located in the magnetic gap of the first magnetic circuit component (4). One end of the fourth voice coil (33) is fixedly connected to the second diaphragm (31), and the other end is located in the magnetic gap of the second magnetic circuit component (5).

2. The loudspeaker (30) according to claim 1, characterized in that, The first magnetic circuit assembly (4) includes a first central magnet (41) and a first side magnet (42), the first side magnet (42) being located around the first central magnet (41) and forming a magnetic gap; the second magnetic circuit assembly (5) includes a second central magnet (51) and a second side magnet (52), the second side magnet (52) being located around the second central magnet (51) and forming a magnetic gap; The support member (12) includes a first support portion (121), a connecting portion (122), and a second support portion (123) connected in sequence. The first support portion (121) and the second support portion (123) are respectively recessed toward the second diaphragm (31), and a clearance space is formed between the first support portion (121), the connecting portion (122), and the second support portion (123). The first central magnet (41) is installed on the first support portion (121), and the second central magnet (51) is installed on the second support portion (123). The third voice coil (32) surrounds the first support portion (121), and the fourth voice coil (33) surrounds the second support portion (123). A portion of the third voice coil (32) and a portion of the fourth voice coil (33) are located in the clearance space. The first voice coil (22) and the second voice coil (23) are located on both sides of the clearance space.

3. The loudspeaker (30) according to claim 2, characterized in that, The support member (12) further includes a first fixing part (124) and a second fixing part (125), the first fixing part (124) being connected to the first support part (121), and the second fixing part (125) being connected to the second support part (123); the first fixing part (124) and the second fixing part (125) are respectively fixedly connected to the basin stand (11); The first side magnet (42) is partially mounted on the surface of the first fixing part (124) facing the second diaphragm (31), and the first center magnet (41) is mounted on the surface of the first support part (121) facing the first diaphragm (21); the second side magnet (52) is partially mounted on the surface of the second fixing part (125) facing the second diaphragm (31), and the first center magnet (41) is mounted on the surface of the second support part (123) facing the first diaphragm (21); the support member (12) is magnetically conductive.

4. The loudspeaker (30) according to claim 3, characterized in that, The support member (12) includes a support plate (12a) and an annular plate (12b), the support plate (12a) and the annular plate (12b) are spaced apart, the first fixing part (124), the first support part (121), the connecting part (122), the second support part (123) and the second fixing part (125) are formed on the support plate (12a), and the first side magnet (42) and the second side magnet (52) are respectively fixed on the surface of the annular plate (12b) facing the second diaphragm (31).

5. The loudspeaker (30) according to claim 4, characterized in that, The support plate (12a) is an integrally formed structural component; and / or, the support plate (12a) is fixed to the basin frame (11) and is an integral structural component with the basin frame (11).

6. The loudspeaker (30) according to claim 2, characterized in that, The housing (1) further includes a magnetic conductor (13), which is fixed to the frame (11). The magnetic conductor (13) is located between the first magnetic circuit assembly (4) and the second diaphragm (31). The first side magnet (42) and the second side magnet (52) are respectively fixed to the surface of the magnetic conductor (13) facing the first diaphragm (21).

7. The loudspeaker (30) according to claim 2, characterized in that, The connecting part (122) has a first end (1221) and a second end (1223), the first end (1221) and the second end (1223) are arranged along a first direction, the first direction is perpendicular to the arrangement direction of the first diaphragm (21) and the second diaphragm (31) and perpendicular to the arrangement direction of the first support part (121) and the second support part (123); The first end (1221) and the second end (1223) respectively abut against two opposite sidewalls of the housing (1) in the first direction; or, the first end (1221) and the second end (1223) are respectively fixedly connected to two opposite sidewalls of the housing (1) in the first direction.

8. The loudspeaker (30) according to claim 7, characterized in that, The basin stand (11) includes a first frame (111) and a second frame (112), the first frame (111) and the second frame (112) are fixedly connected, the first diaphragm (21) is fixed to the first frame (111), and the second diaphragm (31) is fixed to the second frame (112); the first end (1221) and the second end (1223) are fixed to the first frame (111); The first frame (111) has positioning portions (1112) on two wall panels facing each other in the first direction, and the positioning portions (1112) protrude toward the second diaphragm (31); the second frame (112) has snap-fit ​​portions (1122) on two wall panels facing each other in the first direction, and the positioning portions (1112) are located between the snap-fit ​​portions (1122) in the first direction, and the positioning portions (1112) abut against the snap-fit ​​portions (1122).

9. The loudspeaker (30) according to claim 2, characterized in that, A magnetic gap is formed between the first central magnet (41) and the second central magnet (51), and the first voice coil (22), the second voice coil (23), the third voice coil (32) and the fourth voice coil (33) are respectively partially located between the first central magnet (41) and the second central magnet (51).

10. The loudspeaker (30) according to claim 9, characterized in that, The distance between the first central magnet (41) and the second central magnet (51) is less than 4 mm, and the distance between the third voice coil (32) and the fourth voice coil (33) is less than 2 mm.

11. The loudspeaker (30) according to any one of claims 1 to 10, characterized in that, In the arrangement direction of the first diaphragm (21) and the second diaphragm (31), the projection of the third voice coil (32) surrounds the projection of the first voice coil (22), and the projection of the fourth voice coil (33) surrounds the projection of the second voice coil (23); and the vibration height of the first voice coil (22) at least partially coincides with the vibration height of the third voice coil (32), and the vibration height of the second voice coil (23) at least partially coincides with the vibration height of the fourth voice coil (33).

12. The loudspeaker (30) according to any one of claims 1 to 11, characterized in that, The length direction of the first voice coil (22) and the length direction of the second voice coil (23) are parallel to the length direction of the loudspeaker (30), and the arrangement direction of the first voice coil (22) and the second voice coil (23) is parallel to the length direction of the loudspeaker (30); The length direction of the third voice coil (32) and the length direction of the fourth voice coil (33) are parallel to the length direction of the loudspeaker (30), and the arrangement direction of the third voice coil (32) and the fourth voice coil (33) is parallel to the length direction of the loudspeaker (30).

13. The loudspeaker (30) according to any one of claims 1 to 12, characterized in that, The loudspeaker (30) has a fixing member (36) that is fixedly connected to the sidewalls opposite to the third voice coil (32) and the fourth voice coil (33).

14. The loudspeaker (30) according to claim 13, characterized in that, In the arrangement direction of the first diaphragm (21) and the second diaphragm (31), the distance between the fixing member (36) and the end of the third voice coil (32) connected to the first diaphragm (21) is a first dimension, and the distance between the fixing member (36) and the end of the third voice coil (32) away from the first diaphragm (21) is a second dimension. Both the first dimension and the second dimension are greater than 1 mm.

15. The loudspeaker (30) according to claim 13, characterized in that, The fixing member (36) has a through hole (361), and in the arrangement direction of the first diaphragm (21) and the second diaphragm (31), the area of ​​the through hole (361) is greater than half the area of ​​the fixing member (36).

16. The loudspeaker (30) according to any one of claims 13 to 15, characterized in that, The fixing member (36) can be a circuit board, and the fixing member (36) is electrically connected to the third voice coil (32) and the fourth voice coil (33).

17. The loudspeaker (30) according to any one of claims 13 to 15, characterized in that, The fastener (36) is a colloid.

18. The loudspeaker (30) according to any one of claims 1 to 17, characterized in that, The first vibration component (2) further includes a first reinforcing plate (25), which is fixed to the side of the first diaphragm (21) facing the second diaphragm (31). The first reinforcing plate (25) is located at the interval between the first voice coil (22) and the second voice coil (23). In the arrangement direction of the first voice coil (22) and the second voice coil (23), the length of the first reinforcing plate (25) is greater than the distance between the first voice coil (22) and the second voice coil (23). And / or, the second vibration component (3) further includes a second reinforcing plate (35), which is fixed to the side of the second diaphragm (31) facing the first diaphragm (21). The second reinforcing plate (35) is located at the interval between the third voice coil (32) and the fourth voice coil (33). In the arrangement direction of the third voice coil (32) and the fourth voice coil (33), the length of the second reinforcing plate (35) is greater than the distance between the third voice coil (32) and the fourth voice coil (33).

19. The loudspeaker (30) according to any one of claims 1 to 18, characterized in that, The first vibration component (2) further includes a first centering support plate (24), one side of which is fixedly connected to the first diaphragm (21), and the other side is fixedly connected to the first voice coil (22) and the second voice coil (23), and the first centering support plate (24) is electrically connected to the first voice coil (22) and the second voice coil (23); And / or, the second vibration component (3) further includes a second centering support (34), one side of which is fixedly connected to the second diaphragm (31), and the other side is fixedly connected to the third voice coil (32) and the fourth voice coil (33), and the second centering support (34) is electrically connected to the third voice coil (32) and the fourth voice coil (33).

20. The loudspeaker (30) according to any one of claims 1 to 19, characterized in that, The loudspeaker (30) further includes a third magnetic circuit assembly (6), the first vibration assembly (2) further includes a fifth voice coil (26), the second vibration assembly (3) further includes a sixth voice coil (37), the third magnetic circuit assembly (6) is fixed to the support member (12), one end of the fifth voice coil (26) is fixedly connected to the first diaphragm (21), and the other end is located in the magnetic gap of the third magnetic circuit assembly (6), one end of the sixth voice coil (37) is fixedly connected to the second diaphragm (31), and the other end is located in the magnetic gap of the third magnetic circuit assembly (6).

21. The loudspeaker (30) according to any one of claims 1 to 20, characterized in that, The vibration directions of the first diaphragm (21) and the second diaphragm (31) are parallel, and the first diaphragm (21) and the second diaphragm (31) are used to form an acoustic dipole or an acoustic monopole.

22. An electronic device, characterized in that, It includes a body and a speaker (30) as claimed in any one of claims 1 to 21, the speaker (30) being fixed to the body.

Images