Sound production device and electronic equipment

Abstract

The invention provides a sound production device and electronic equipment. A first end portion of a first transmission member is connected with a first cross bar, a second end portion of the first transmission member is connected with a second cross bar, a middle portion of the first transmission member protrudes towards a direction close to a first diaphragm assembly and is connected with the first diaphragm assembly, a first end portion of a second transmission member is connected with the first cross bar, and a second end portion of the second transmission member is connected with the second cross bar. The middle part of the second transmission member is recessed in a direction close to the second diaphragm assembly and is connected with the second diaphragm assembly, the first end part of the second transmission member is located at one side, close to the first diaphragm assembly, of the first end part of the first transmission member, and the second end part of the second transmission member is located at one side, close to the first diaphragm assembly, of the second end part of the first transmission member. The middle of the second transmission part and the middle of the first transmission part are arranged in a crossed mode. In this way, the vibration space of the first vibrating diaphragm assembly and the vibration space of the second vibrating diaphragm assembly are mutually multiplexed, and thinning arrangement of the sound production device is facilitated.

Description

Technical Field

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

[0002] In electronic products (such as speakers, TVs, and computers, etc.), thin-profile speakers are gaining more and more attention from major manufacturers. Traditional speakers use a transmission mechanism to convert the lateral vibration of the voice coil into the longitudinal vibration of the upper and lower diaphragms, thereby separating the magnetic circuit and the diaphragm in the thickness direction. However, the vibration spaces of the upper and lower diaphragms of traditional speakers are stacked in the thickness direction, resulting in a relatively large thickness of the traditional speakers, and it is not easy to achieve a thin-profile setting for traditional speakers. Summary of the invention

[0003] The present application provides a sound-generating device and an electronic device that can achieve a thin configuration and high space utilization.

[0004] In a first aspect, the present application provides a sound-generating device. The sound-generating device includes a basin frame, a first diaphragm assembly, a second diaphragm assembly, a first crossbar, a second crossbar, a first transmission member, a second transmission member, and a driving device;

[0005] The first diaphragm assembly and the second diaphragm assembly are fixed in the middle of the basin frame and arranged opposite to each other;

[0006] The first cross bar is movably connected to the first end of the basin frame, and the second cross bar is movably connected to the second end of the basin frame;

[0007] The first end of the first transmission member is connected to the first cross bar, the second end of the first transmission member is connected to the second cross bar, and the middle portion of the first transmission member protrudes toward the direction close to the first diaphragm assembly and is connected to the first diaphragm assembly;

[0008] The first end of the second transmission member is connected to the first crossbar, the second end of the second transmission member is connected to the second crossbar, the middle portion of the second transmission member is recessed toward the direction close to the second diaphragm assembly, and is connected to the second diaphragm assembly, wherein the first end of the second transmission member is located at a side of the first end of the first transmission member close to the first diaphragm assembly, and the second end of the second transmission member is located at a side of the second end of the first transmission member close to the first diaphragm assembly;

[0009] The driving device is configured to drive the first cross bar and the second cross bar away from each other, and the first cross bar and the second cross bar drive the middle part of the first transmission member and the middle part of the second transmission member closer to each other; the driving device is also configured to drive the first cross bar and the second cross bar closer to each other, and the first cross bar and the second cross bar drive the middle part of the first transmission member and the middle part of the second transmission member away from each other.

[0010] It can be understood that by connecting the first end of the first transmission member to the first cross bar, the second end of the first transmission member to the second cross bar, the middle part of the first transmission member protrudes in the direction close to the first diaphragm assembly and connects the first diaphragm assembly, the first end of the second transmission member is connected to the first cross bar, the second end of the second transmission member is connected to the second cross bar, the middle part of the second transmission member is recessed in the direction close to the second diaphragm assembly and connects the second diaphragm assembly, wherein the first end of the second transmission member is located on the side of the first end of the first transmission member close to the first diaphragm assembly, and the second end of the second transmission member is located on the side of the second end of the first transmission member close to the first diaphragm assembly, so that the middle part of the second transmission member is cross-set with the middle part of the first transmission member. In this way, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly have an overlapping area. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are reused. At this time, the thickness of the sound-emitting device can be further reduced, which is more conducive to the thinning setting of the sound-emitting device.

[0011] In a possible implementation, a first avoidance hole is provided in the middle of the first transmission member, and the middle of the second transmission member passes through the first avoidance hole, and / or a second avoidance hole is provided in the middle of the second transmission member, and the middle of the first transmission member passes through the second avoidance hole. In this way, in the width direction of the middle of the first transmission member or the width direction of the second transmission member, the middle of the first transmission member and the middle of the second transmission member have an overlapping area, and the arrangement of the middle of the first transmission member and the middle of the second transmission member is more compact.

[0012] In one possible implementation, the first end of the first transmission member is connected to the bottom surface of the first cross bar, and the second end of the first transmission member is connected to the bottom surface of the second cross bar; and / or, the first end of the second transmission member is connected to the top surface of the first cross bar, and the second end of the second transmission member is connected to the top surface of the second cross bar. In this way, the overlapping area between the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly is relatively large. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are reused to a large extent. At this time, the thickness of the sound-emitting device can be reduced to a large extent, which is more conducive to the thin design of the sound-emitting device.

[0013] In a possible implementation, the middle portion of the first transmission member protrudes relative to the top surface of the first crossbar and the top surface of the second crossbar; and / or the middle portion of the second transmission member protrudes relative to the bottom surface of the first crossbar and the bottom surface of the second crossbar. In this way, the vibration space of the first diaphragm assembly is larger than the vibration space of the second diaphragm assembly.

[0014] In a possible implementation, the first crossbar includes a first sub-connection portion and a second sub-connection portion, the bottom surface of the second sub-connection portion of the first crossbar protrudes relative to the bottom surface of the first sub-connection portion of the first crossbar, the second crossbar includes a first sub-connection portion and a second sub-connection portion, the bottom surface of the second sub-connection portion of the second crossbar protrudes relative to the bottom surface of the first sub-connection portion of the second crossbar, the first end of the first transmission member is fixed to the bottom surface of the second sub-connection portion of the first crossbar, and the second end of the first transmission member is fixed to the bottom surface of the second sub-connection portion of the second crossbar;

[0015] And / or, the top surface of the second sub-connecting part of the first cross bar protrudes relative to the top surface of the first sub-connecting part of the first cross bar, the top surface of the second sub-connecting part of the second cross bar protrudes relative to the top surface of the first sub-connecting part of the second cross bar, the first end of the second transmission member is fixed to the top surface of the second sub-connecting part of the first cross bar, and the second end of the second transmission member is fixed to the top surface of the second sub-connecting part of the second cross bar.

[0016] It can be understood that, through the above arrangement, the overlapping area between the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly can be greatly increased. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are reused to a large extent. At this time, the thickness of the sound-generating device can be greatly reduced, which is more conducive to the thin design of the sound-generating device.

[0017] In a possible implementation, the first transmission member includes a first plate, a second plate, a third plate, a fourth plate and a fifth plate, the first plate, the second plate and the third plate are connected between the fourth plate and the fifth plate, the second plate is connected between the first plate and the third plate, the first plate is connected to the fourth plate, the third plate is connected to the fifth plate, the second plate protrudes relative to the same side of the fourth plate and the fifth plate, wherein the connection between two adjacent plates can be bent;

[0018] The fourth plate member constitutes a first end portion of the first transmission member, the fifth plate member constitutes a second end portion of the first transmission member, and the first plate member, the second plate member, and the third plate member constitute a middle portion of the first transmission member.

[0019] It can be understood that the structure of the first transmission member in this embodiment is relatively simple and easy to implement.

[0020] In a possible implementation manner, the fourth plate and the first plate, the first plate and the second plate, the second plate and the third plate, and the third plate and the fifth plate are all arranged at an obtuse angle.

[0021] In a possible implementation, the connection area between the fourth plate and the first plate is larger than the connection area between the first plate and the second plate. In this way, while ensuring that the first transmission member and the second transmission member do not interfere with each other during movement, the connection area between the fourth plate of the first transmission member and the first plate can be greatly increased, thereby preventing the fourth plate of the first transmission member and the first plate from deforming.

[0022] In a possible implementation, the first plate, the second plate and the third plate constitute a first connecting member, the number of the first connecting members is one or more; the number of the first connecting members is more than one, the space between two adjacent first connecting members constitutes a first avoidance space, and the middle of the second transmission member passes through the first avoidance space. In this way, in the width direction of the middle of the first transmission member or the width direction of the second transmission member, the middle of the first transmission member and the middle of the second transmission member have an overlapping area, and the arrangement of the middle of the first transmission member and the middle of the second transmission member is more compact.

[0023] In a possible implementation, the first transmission member further includes a first fixing member, the first fixing member includes a first end portion, a middle portion, and a second end portion connected in sequence, and a connection portion between the first end portion of the first fixing member and the middle portion of the first fixing member and a connection portion between the second end portion of the first fixing member and the middle portion of the first fixing member are both bendable;

[0024] The first end of the first fixing member is fixed to the first plate of the first transmission member, the second end of the first fixing member is fixed to the basin frame, and the middle part of the first fixing member is arranged at an obtuse angle with the first plate of the first transmission member.

[0025] It can be understood that while the first end of the first transmission member squeezes the second plate of the first transmission member through the first plate of the first transmission member, the first fixing member also squeezes the second plate of the first transmission member through the first plate of the first transmission member, so that the second plate of the first transmission member is also subjected to a force in the negative direction of the X-axis. In this way, most of the forces on the second plate of the first transmission member in the X-axis direction can offset each other. At this time, when the second plate of the first transmission member is not easy to apply a force in the X-axis direction to the first diaphragm assembly. The first diaphragm assembly is not easy to bend or deform. In this way, when the first diaphragm assembly vibrates in the Z-axis direction, it is not easy to form a new mode. The first diaphragm assembly can vibrate in a piston mode, and the first diaphragm assembly has a better sound pressure level. The X-axis direction can be the direction from the first crossbar to the second crossbar. The Z-axis direction can be the direction from the second diaphragm assembly to the first diaphragm assembly.

[0026] In one possible implementation, the first transmission member includes a flexible member and a plurality of hard patches, the flexible member is an integrally formed structure, and the plurality of hard patches are fixed at intervals in the middle of the flexible member; or, the first transmission member includes a plurality of hard members and a plurality of injection-molded members, and two adjacent hard members are connected by the injection-molded members.

[0027] It can be understood that the structure of the first transmission member in this embodiment is relatively simple and easy to implement.

[0028] In a possible implementation, the sound-generating device includes a first elastic member connected between the first crossbar and the first end of the basin frame. It can be understood that the first crossbar can move relative to the basin frame through deformation of the first elastic member.

[0029] In a possible implementation, the first elastic member includes a first end, a middle portion, and a second end that are connected in sequence, the first end of the first elastic member is fixedly connected to the basin frame, and the second end of the first elastic member is fixedly connected to the first crossbar; the middle portion of the first elastic member can enclose a first space. In this way, the connection between the basin frame and the first crossbar is more stable.

[0030] In a possible implementation, the first elastic member is formed by connecting a first sub-ring and a second sub-ring, and a middle portion of the first sub-ring and a middle portion of the second sub-ring enclose a first space.

[0031] It can be understood that the structure of the first elastic member in this embodiment is relatively simple and easy to implement.

[0032] In a possible implementation manner, the wall surface of the first space is in a diamond shape, a circle, a semicircle, or a semi-diamond shape.

[0033] In a possible implementation, the first elastic member is in a folded ring structure, so that the structure of the first elastic member is relatively simple and easy to implement.

[0034] In a possible implementation, the sound-generating device includes a second elastic member connected between the second cross bar and the second end of the basin frame; the second cross bar can move relative to the basin frame through deformation of the second elastic member.

[0035] In one possible implementation, the driving device includes a first voice coil, a second voice coil, a first magnetic circuit system, and a second magnetic circuit system; one of the first magnetic circuit system and the first voice coil is fixed to the first end of the basket, and the other is fixed to the first cross bar, and the first voice coil cooperates with the first magnetic circuit system to drive the first cross bar and the second cross bar to move away from each other, or closer to each other; one of the second magnetic circuit system and the second voice coil is fixed to the second end of the basket, and the other is fixed to the second cross bar, and the second voice coil cooperates with the second magnetic circuit system to drive the first cross bar and the second cross bar to move away from each other, or closer to each other.

[0036] It can be understood that the driving device of this embodiment adopts two driving systems, that is, the first voice coil and the first magnetic circuit system constitute the first driving system, and the second voice coil and the second magnetic circuit system constitute the second driving system. The two driving systems are respectively arranged at the first end and the second end of the basin frame. In this way, it is conducive to realizing a symmetrically arranged driving device, thereby facilitating the generation of a symmetrical driving force.

[0037] In a possible implementation, the first magnetic circuit system is fixed to the first end of the basin frame, and the first voice coil is fixed to the first cross bar; the first magnetic circuit system includes a first magnetic circuit component and a second magnetic circuit component, and the first magnetic circuit component and the second magnetic circuit component are respectively located on both sides of the winding plane of the first voice coil.

[0038] It is understandable that the first voice coil of this embodiment uses two magnetic circuit components (first magnetic circuit component and second magnetic circuit component) to cooperate with each other, so that the first crossbar can obtain the driving force of two Ampere forces (first Ampere force and second Ampere force). In this way, the first crossbar can obtain a larger stroke in the X-axis direction.

[0039] In a possible implementation, the first magnetic circuit assembly includes a first magnet, a second magnet, a third magnet, a fourth magnet and a fifth magnet, the third magnet is located between the first magnet and the second magnet, the third magnet, the first magnet and the second magnet are located between the fourth magnet and the fifth magnet, and the first magnet is close to the fourth magnet, and the second magnet is close to the fifth magnet;

[0040] The polarization directions of the first magnet and the second magnet are opposite and parallel to the third direction. The polarization directions of the third magnet, the fourth magnet and the fifth magnet are all parallel to the first direction. The polarization direction of the third magnet is opposite to that of the fourth magnet. The polarization direction of the fourth magnet is the same as that of the fifth magnet. The first direction is the direction from the first cross bar to the second cross bar, and the third direction is the direction from the second diaphragm assembly to the first diaphragm assembly.

[0041] It is understandable that, through the above arrangement, the first magnetic circuit assembly can enable the first crossbar to obtain a larger driving force, so that the first crossbar can obtain a larger stroke in the X-axis direction.

[0042] In a possible implementation, the fourth magnet and / or the fifth magnet of the first magnetic circuit assembly is provided with a first avoidance gap, and the first avoidance gap is configured to provide a moving space for the first cross bar when the first cross bar moves relative to the basin frame.

[0043] In a possible implementation, the first magnetic circuit assembly includes a plurality of magnets, and the plurality of magnets are in a Halbach magnet array;

[0044] Alternatively, the first magnetic circuit assembly includes a first magnetic member, a first magnetic conductive member, a second magnetic member, a second magnetic conductive member and a third magnetic member connected in sequence along a first direction, the polarization directions of the first magnetic member, the second magnetic member and the third magnetic member of the first magnetic circuit assembly are all parallel to the first direction, the polarization direction of the second magnetic member is opposite to the polarization direction of the first magnetic member, and the polarization direction of the third magnetic member is the same as the polarization direction of the first magnetic member;

[0045] Alternatively, the first magnetic circuit assembly includes a first magnet and a second magnet, the arrangement direction of the first magnet and the second magnet is parallel to the first direction, the polarization direction of the first magnet is opposite to the polarization direction of the second magnet, and is parallel to a third direction, the first direction is the direction from the first cross bar to the second cross bar, and the third direction is the direction from the second diaphragm assembly to the first diaphragm assembly.

[0046] In a possible implementation, the sound generating device includes a third voice coil, which is located between the first magnetic circuit assembly and the second magnetic circuit assembly and spaced apart from the first voice coil.

[0047] In a possible implementation, the sound-generating device further includes a third elastic member;

[0048] The third elastic member connects the basin frame and the first cross bar. The third elastic member can provide elastic force in a first direction. The first direction is the direction from the first cross bar to the second cross bar.

[0049] In a possible implementation, the third elastic member includes an insulating portion, a first conductive portion, and a second conductive portion, and the first conductive portion and the second conductive portion are respectively connected to two ends of the insulating portion;

[0050] The first conductive part is electrically connected to the input end of the first voice coil, and the second conductive part is electrically connected to the output end of the first voice coil.

[0051] It can be understood that the third elastic member can not only movably connect the first crossbar to the basin frame, but also electrically connect the first voice coil to the external device. The third elastic member has the function of "one object with multiple uses".

[0052] In one possible implementation, the first diaphragm assembly includes a first diaphragm and a first reinforcement member; the first diaphragm is fixed on the basin frame, and the middle part of the first transmission member is connected to the first diaphragm; the first reinforcement member is fixed on the first diaphragm and is located on the side of the first diaphragm facing the second diaphragm assembly, the first reinforcement member is spaced apart from the middle part of the first transmission member, or the first reinforcement member is fixed on the middle part of the first transmission member.

[0053] It is understandable that the first reinforcement member can increase the strength of the first diaphragm, thereby preventing the first diaphragm from being partially sunken or convex during vibration, thereby preventing the first diaphragm from forming a new mode. In this way, the first diaphragm can vibrate in a piston mode, and the first diaphragm has a better sound pressure level.

[0054] In a possible implementation, the first reinforcement member includes a main body, a first bent portion and a second bent portion, the main body is fixed on the first diaphragm; the first bent portion and the second bent portion are respectively connected to two sides of the main body, and the first bent portion and the second bent portion are bent relative to the main body along a side away from the first diaphragm.

[0055] It is understandable that, by setting the structure of the first reinforcement piece as above, the overall structural strength of the first reinforcement piece can be greatly improved. In this way, the first reinforcement piece is not easy to bend. When the first reinforcement piece is fixed to the first diaphragm, the first reinforcement piece can greatly improve the structural strength of the first diaphragm assembly.

[0056] In a possible implementation, the cross-section of the first reinforcing member is in a rectangular, U-shaped, wavy, or square-wavy shape.

[0057] In a possible implementation, the first reinforcement member is provided with a first groove, and the first groove forms an opening on the surface of the first reinforcement member away from the first diaphragm; or the first reinforcement member is provided with a protrusion, and the protrusion is protruding on the surface of the first reinforcement member away from the first diaphragm. It can be understood that when the first reinforcement member is fixed on the first diaphragm, the protrusion is protruding on the surface of the first reinforcement member away from the first diaphragm. In this way, the overall structural strength of the first reinforcement member is greater, that is, the first reinforcement member is not easy to bend. When the first reinforcement member can greatly improve the structural strength of the first diaphragm.

[0058] In one possible implementation, the second diaphragm assembly includes a second diaphragm and a second reinforcement member; the second diaphragm is fixed on the basin frame, the second diaphragm is arranged opposite to the first diaphragm, and the middle part of the second transmission member is connected to the second diaphragm; the second reinforcement member is fixed on the second diaphragm and is located on the side of the second diaphragm facing the first diaphragm assembly, the second reinforcement member is spaced apart from the middle part of the second transmission member, or the second reinforcement member is fixed to the middle part of the second transmission member.

[0059] It is understandable that the second reinforcement can increase the strength of the second diaphragm, thereby preventing the second diaphragm from being partially sunken or convex during vibration, thereby preventing the second diaphragm from forming a new mode. In this way, the second diaphragm can vibrate in a piston mode, and the second diaphragm has a better sound pressure level.

[0060] In a possible implementation, the cross-section of the second reinforcing member is in a rectangular, U-shaped, wavy, or square-wavy shape.

[0061] In a possible implementation, the middle portion of the first transmission member includes a second plate member connected to the first diaphragm, the first reinforcement member includes a first long side portion, a length extension direction of the first long side portion of the first reinforcement member is parallel to a length extension direction of the second plate member of the first transmission member, and the first long side portion of the first reinforcement member and the second plate member of the first transmission member are arranged at intervals along a width direction of the second plate member of the first transmission member;

[0062] The middle part of the second transmission member includes a second plate member connected to the second diaphragm; the second reinforcement member includes a second long side portion, and the length extension direction of the second long side portion of the second reinforcement member is parallel to the length extension direction of the second plate member of the second transmission member; the second long side portion of the second reinforcement member and the second plate member of the second transmission member are arranged at intervals along the width direction of the second plate member of the second transmission member;

[0063] The sum of the number of the first long sides of the first reinforcing member and the number of the second plates of the first transmission member is equal to the sum of the number of the second long sides of the second reinforcing member and the number of the second plates of the second transmission member.

[0064] It can be understood that, through the above arrangement, the symmetry of the first diaphragm and the second diaphragm can be improved, thereby greatly improving the sound effect of the sound-generating device.

[0065] In a possible implementation, the first diaphragm includes a first fold ring and a first dome; the first fold ring includes a first fixing portion, a connecting portion, and a second fixing portion, the connecting portion is connected between the first fixing portion and the second fixing portion, the connecting portion protrudes relative to the same side of the first fixing portion and the second fixing portion, and the first fixing portion of the first fold ring is fixed to the basin frame;

[0066] The first ball top is fixed to a side of the second fixing portion of the first fold ring away from the rear cavity;

[0067] The first reinforcing piece is fixed to a side of the second fixing portion facing the rear cavity.

[0068] In a possible implementation, the first diaphragm includes a first rigid member, and the first rigid member is connected between the first fixing portion of the first fold ring and the basin frame. Exemplarily, the material of the first rigid member can be stainless steel, aluminum, etc. Exemplarily, the first rigid member is ring-shaped.

[0069] It is understandable that the first rigid member can improve the structural strength of the first fixing portion of the first fold ring, so as to avoid the first fixing portion of the first fold ring being difficult to fix on the basin frame due to low structural strength, that is, reducing the installation process of the first fold ring and the basin frame.

[0070] In a second aspect, the present application provides an electronic device. The electronic device includes the above-mentioned sound-generating device. Since the sound-generating device can achieve a thin configuration and greatly improve the space utilization rate, when the sound-generating device is applied to the electronic device, it is also beneficial for the electronic device to achieve a thin configuration and greatly improve the space utilization rate.

[0071] In a third aspect, the present application provides a mover of a sound-generating device. The mover of the sound-generating device comprises a first crossbar, a second crossbar, a first transmission member, and a second transmission member;

[0072] The first end of the first transmission member is connected to the first cross bar, the second end of the first transmission member is connected to the second cross bar, the first end of the second transmission member is connected to the first cross bar, and the second end of the second transmission member is connected to the second cross bar;

[0073] The middle portion of the first transmission member protrudes in a direction away from the middle portion of the second transmission member, the middle portion of the second transmission member is recessed in a direction away from the middle portion of the second transmission member, and the middle portion of the second transmission member intersects with the middle portion of the first transmission member and is spaced apart;

[0074] The first cross bar and the second cross bar are configured to drive the middle portion of the first transmission member and the middle portion of the second transmission member to move closer to each other or away from each other under the driving force.

[0075] It can be understood that by making the middle part of the first transmission member protrude in a direction away from the middle part of the second transmission member, and the middle part of the second transmission member is recessed in a direction away from the middle part of the second transmission member, the middle part of the second transmission member intersects with the middle part of the first transmission member and is arranged at intervals, so that when the mover of the sound-emitting device is applied to the sound-emitting device, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly have an overlapping area. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are reused. At this time, the thickness of the sound-emitting device can be further reduced, which is more conducive to the thinning setting of the sound-emitting device.

[0076] In a possible implementation, a first avoidance hole is provided in the middle of the first transmission member, and the middle of the second transmission member passes through the first avoidance hole, and / or a second avoidance hole is provided in the middle of the second transmission member, and the middle of the first transmission member passes through the second avoidance hole. In this way, in the width direction of the middle of the first transmission member or the width direction of the second transmission member, the middle of the first transmission member and the middle of the second transmission member have an overlapping area, and the arrangement of the middle of the first transmission member and the middle of the second transmission member is more compact.

[0077] In one possible implementation, the first end of the first transmission member is connected to the bottom surface of the first cross bar, and the second end of the first transmission member is connected to the bottom surface of the second cross bar; and / or, the first end of the second transmission member is connected to the top surface of the first cross bar, and the second end of the second transmission member is connected to the top surface of the second cross bar. In this way, when the mover of the sound-emitting device is applied to the sound-emitting device, the overlapping area between the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly is large. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are reused to a large extent. At this time, the thickness of the sound-emitting device can be reduced to a large extent, which is more conducive to the thin design of the sound-emitting device.

[0078] In a possible implementation, the middle portion of the first transmission member protrudes relative to the top surface of the first crossbar and the top surface of the second crossbar; and / or the middle portion of the second transmission member protrudes relative to the bottom surface of the first crossbar and the bottom surface of the second crossbar. In this way, the vibration space of the first diaphragm assembly is larger than the vibration space of the second diaphragm assembly.

[0079] In a possible implementation, the first crossbar includes a first sub-connection portion and a second sub-connection portion, the bottom surface of the second sub-connection portion of the first crossbar protrudes relative to the bottom surface of the first sub-connection portion of the first crossbar, the second crossbar includes a first sub-connection portion and a second sub-connection portion, the bottom surface of the second sub-connection portion of the second crossbar protrudes relative to the bottom surface of the first sub-connection portion of the second crossbar, the first end of the first transmission member is fixed to the bottom surface of the second sub-connection portion of the first crossbar, and the second end of the first transmission member is fixed to the bottom surface of the second sub-connection portion of the second crossbar;

[0080] And / or, the top surface of the second sub-connecting part of the first cross bar protrudes relative to the top surface of the first sub-connecting part of the first cross bar, the top surface of the second sub-connecting part of the second cross bar protrudes relative to the top surface of the first sub-connecting part of the second cross bar, the first end of the second transmission member is fixed to the top surface of the second sub-connecting part of the first cross bar, and the second end of the second transmission member is fixed to the top surface of the second sub-connecting part of the second cross bar.

[0081] It can be understood that, through the above arrangement, the overlapping area between the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly can be greatly increased. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are reused to a large extent. At this time, the thickness of the sound-generating device can be greatly reduced, which is more conducive to the thin design of the sound-generating device.

[0082] In a possible implementation, the first transmission member includes a first plate, a second plate, a third plate, a fourth plate and a fifth plate, the first plate, the second plate and the third plate are connected between the fourth plate and the fifth plate, the second plate is connected between the first plate and the third plate, the first plate is connected to the fourth plate, the third plate is connected to the fifth plate, the second plate protrudes relative to the same side of the fourth plate and the fifth plate, wherein the connection between two adjacent plates can be bent;

[0083] The fourth plate member constitutes a first end portion of the first transmission member, the fifth plate member constitutes a second end portion of the first transmission member, and the first plate member, the second plate member, and the third plate member constitute a middle portion of the first transmission member.

[0084] It can be understood that the structure of the first transmission member in this embodiment is relatively simple and easy to implement.

[0085] In a possible implementation manner, the fourth plate and the first plate, the first plate and the second plate, the second plate and the third plate, and the third plate and the fifth plate are all arranged at an obtuse angle.

[0086] In a possible implementation, the connection area between the fourth plate and the first plate is larger than the connection area between the first plate and the second plate. In this way, while ensuring that the first transmission member and the second transmission member do not interfere with each other during movement, the connection area between the fourth plate of the first transmission member and the first plate can be greatly increased, thereby preventing the fourth plate of the first transmission member and the first plate from deforming.

[0087] In a possible implementation, the first plate, the second plate and the third plate constitute a first connecting member, the number of the first connecting members is one or more; the number of the first connecting members is more than one, the space between two adjacent first connecting members constitutes a first avoidance space, and the middle of the second transmission member passes through the first avoidance space. In this way, in the width direction of the middle of the first transmission member or the width direction of the second transmission member, the middle of the first transmission member and the middle of the second transmission member have an overlapping area, and the arrangement of the middle of the first transmission member and the middle of the second transmission member is more compact.

[0088] In a possible implementation, the first transmission member further includes a first fixing member, the first fixing member includes a first end portion, a middle portion, and a second end portion connected in sequence, and a connection portion between the first end portion of the first fixing member and the middle portion of the first fixing member and a connection portion between the second end portion of the first fixing member and the middle portion of the first fixing member are both bendable;

[0089] The first end of the first fixing member is fixed to the first plate of the first transmission member, the second end of the first fixing member is fixed to the basin frame, and the middle part of the first fixing member is arranged at an obtuse angle with the first plate of the first transmission member.

[0090] It can be understood that while the first end of the first transmission member squeezes the second plate of the first transmission member through the first plate of the first transmission member, the first fixing member also squeezes the second plate of the first transmission member through the first plate of the first transmission member, so that the second plate of the first transmission member is also subjected to a force in the negative direction of the X-axis. In this way, most of the forces on the second plate of the first transmission member in the X-axis direction can offset each other. At this time, when the second plate of the first transmission member is not easy to apply a force in the X-axis direction to the first diaphragm assembly. The first diaphragm assembly is not easy to bend or deform. In this way, when the first diaphragm assembly vibrates in the Z-axis direction, it is not easy to form a new mode. The first diaphragm assembly can vibrate in a piston mode, and the first diaphragm assembly has a better sound pressure level. The X-axis direction can be the direction from the first crossbar to the second crossbar. The Z-axis direction can be the direction from the second diaphragm assembly to the first diaphragm assembly.

[0091] In a possible implementation, the first transmission member includes a flexible member and a plurality of hard patches, the flexible member is an integrally formed structure, and the plurality of hard patches are fixed at intervals in the middle of the flexible member;

[0092] Alternatively, the first transmission member includes a plurality of hard members and a plurality of injection-molded members, and two adjacent hard members are connected by the injection-molded members.

[0093] It can be understood that the structure of the first transmission member in this embodiment is relatively simple and easy to implement.

[0094] In one possible implementation, the mover of the sound-emitting device also includes a first voice coil or a first magnetic circuit system, which is fixed on a first cross bar; and / or, the mover of the sound-emitting device also includes a second voice coil or a second magnetic circuit system, which is fixed on a second cross bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] Figure 1A It is a structural schematic diagram of an implementation mode of an electronic device provided in an embodiment of the present application;

[0096] Figure 1B is a structural schematic diagram of another implementation of an electronic device provided in an embodiment of the present application;

[0097] Figure 2 is a schematic diagram of the structure of the sound-generating device provided in some embodiments of the present application;

[0098] Figure 3 yes Figure 2 An exploded schematic diagram of a sound-generating device in one embodiment is shown;

[0099] Figure 4 yes Figure 3 The schematic diagram of the structure of the first frame shown in another angle;

[0100] Figure 5 yes Figure 3 The schematic diagram of the structure of the first frame shown in another angle;

[0101] Figure 6 yes Figure 3 The schematic diagram of the structure of the first cross bar and the second cross bar shown is at another angle;

[0102] Figure 7 yes Figure 6 The schematic diagram of the assembly of the first cross bar, the second cross bar, the first voice coil and the second voice coil shown;

[0103] Figure 8 yes Figure 3 The structure schematic diagram of an implementation mode of the first transmission member and the second transmission member shown in another angle;

[0104] Fig. 9 yes Figure 8 The schematic diagram of the structure of the first transmission member and the second transmission member shown in FIG. 1 is shown at another angle;

[0105] Fig.10 yes Figure 8 An exploded schematic diagram of a first transmission member in one embodiment is shown;

[0106] Fig.11 yes Fig.10 A schematic structural diagram of the first transmission member shown;

[0107] Fig.12 yes Figure 8 The structure schematic diagram of the first transmission member in one embodiment is shown;

[0108] Fig.13 yes Figure 2 A partial structural schematic diagram of an embodiment of the sound-generating device shown;

[0109] Fig.14 yes Fig.13 A schematic diagram of the structure of a portion of the sound-generating device shown at another angle;

[0110] Fig.15 yes Figure 3 The structure schematic diagram of the first elastic member in one embodiment is shown;

[0111] Fig.16 yes Figure 2 A partial structural schematic diagram of an embodiment of the sound-generating device shown;

[0112] Fig.17 yes Figure 2 A partial structural schematic diagram of the sound-generating device shown;

[0113] Fig.18 yes Figure 2 A partial cross-sectional view of an embodiment of the sound-generating device shown at line AA;

[0114] Fig.19 yes Figure 3 A schematic structural diagram of an implementation of a first voice coil, a first magnetic member, and a second magnetic member is shown;

[0115] Fig. 20 yes Figure 3 A schematic structural diagram of an implementation of a first voice coil and a first magnetic circuit system is shown;

[0116] Fig.21 yes Figure 3 The schematic diagram of the structure of the second frame in one embodiment is shown;

[0117] Fig. 22 yes Figure 3 A partial structural schematic diagram of an embodiment of the sound-generating device shown;

[0118] Fig.23 yes Figure 2 A cross-sectional view of an embodiment of the sound-generating device shown at line AA;

[0119] Fig.24 yes Fig.23 A cross-sectional view of the sound-generating device shown at another angle;

[0120] Fig.25 yes Figure 3 An exploded schematic diagram of an embodiment of a first diaphragm assembly is shown;

[0121] Fig.26 yes Figure 3 A cross-sectional view of an embodiment of the first diaphragm assembly shown at line BB;

[0122] Fig. 27 yes Figure 3 The schematic diagram of the structure of the first diaphragm assembly shown in another angle;

[0123] Fig.28 yes Figure 3 A cross-sectional view of the sound-generating device in another embodiment;

[0124] Fig.29 yes Figure 3 An exploded schematic diagram of an embodiment of a second diaphragm assembly is shown;

[0125] Fig.30 yes Figure 3The schematic diagram of the structure of the second diaphragm assembly shown in another angle;

[0126] Fig.31 yes Figure 2 A cross-sectional view of another embodiment of the sound-generating device at line AA shown;

[0127] Fig.32 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member and the second transmission member shown;

[0128] Fig.33 yes Figure 2 A partial structural schematic diagram of another embodiment of the sound-generating device shown;

[0129] Fig.34 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member and the second transmission member shown;

[0130] Fig.35 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member and the second transmission member shown;

[0131] Fig.36 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member and the second transmission member shown;

[0132] Fig.37 yes Figure 3 A structural schematic diagram of another embodiment of the first transmission member shown;

[0133] Fig.38 yes Figure 3 A partial structural schematic diagram of another embodiment of the first transmission member and the second transmission member shown;

[0134] Fig.39 yes Figure 3 A structural schematic diagram of another embodiment of the first voice coil and the first magnetic circuit system shown;

[0135] Fig.40 yes Figure 3 A structural schematic diagram of another embodiment of the first voice coil and the first magnetic circuit system shown;

[0136] Fig.41 yes Figure 3 A structural schematic diagram of another embodiment of the first voice coil and the first magnetic circuit system shown;

[0137] Fig.42 yes Figure 3 The structure schematic diagram of the first elastic member shown in another embodiment;

[0138] Fig.43 yes Figure 2 A partial structural schematic diagram of a sound-generating device in another embodiment is shown;

[0139] Fig.44 yes Figure 3 The structure schematic diagram of the first elastic member shown in yet another embodiment;

[0140] Fig.45 is a schematic structural diagram of a third elastic member provided in an embodiment of the present application in one implementation manner;

[0141] Fig.46 yes Figure 2 The sound generating device shown is a partial structural schematic diagram of another embodiment;

[0142] Fig.47 is a schematic structural diagram of another implementation manner of the first reinforcing member provided in an embodiment of the present application;

[0143] Fig.48 yes Figure 3 A schematic structural diagram of the first diaphragm assembly shown in another implementation;

[0144] Fig.49 is a structural schematic diagram of another implementation manner of the first reinforcing member provided in an embodiment of the present application;

[0145] Fig.50 is a structural schematic diagram of another implementation manner of the first reinforcing member provided in an embodiment of the present application;

[0146] Fig.51 yes Figure 3 The structure schematic diagram of the first diaphragm assembly shown in another implementation. DETAILED DESCRIPTION

[0147] The technical solution in the embodiment of the present application will be described below in conjunction with the accompanying drawings. In the description of the embodiment of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiment of the present application, "multiple" means two or more than two.

[0148] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0149] The directional terms mentioned in the embodiments of the present application, such as "inside", "outside", "side", "top", "bottom", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0150] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense. 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. Among them, "fixed connection" can be a connection between each other and the relative position relationship after connection remains unchanged. "Active connection" can be a connection between each other and can move relative to each other after connection. Among them, "electrical connection" means that electrical signals can be conducted between each other. In addition, two components obtain an integrated structure through an integrated molding process, which means that in the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components together through reprocessing (such as bonding, welding, snap connection, screw connection).

[0151] In addition, in the embodiments of the present application, the mathematical concepts mentioned are parallel, perpendicular, etc. These limitations are all for the current state of the art, rather than being absolutely strict definitions in a mathematical sense, and a small amount of deviation is allowed, and it is possible to be approximately parallel, approximately perpendicular, etc. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0152] The embodiment of the present application provides a sound-emitting device and an electronic device using the sound-emitting device. The sound-emitting device adopts a structure different from that of a traditional speaker. The structure of the sound-emitting device is relatively compact, that is, the internal space of the sound-emitting device can be utilized to a large extent. Among them, the electronic device can be a mobile phone, a tablet, a laptop computer, a hearing aid, a smart wearable device, and other electronic devices that need to output audio through a sound-emitting device. The smart wearable device can be a smart watch, augmented reality (AR) glasses, an AR helmet, or virtual reality (VR) glasses, etc. Among them, the sound-emitting device can also be a device such as headphones and a player that can output audible sound. In addition, the sound-emitting device can also be used in the fields of whole houses, smart homes, cars, etc., as an audio device or a part of an audio device.

[0153] Figure 1A It is a structural diagram of an implementation of an electronic device 1000 provided in an embodiment of the present application. Figure 1A The electronic device 1000 in the illustrated embodiment is described by taking a mobile phone as an example.

[0154] like Figure 1A As shown, the electronic device 1000 includes a sound device 100, a housing 200 and a screen 300. Since the sound device 100 is an internal component of the electronic device 1000, Figure 1A The sound generating device 100 is schematically shown by dashed lines. It is understood that Figure 1A The following figures and the related drawings only schematically illustrate some components of the electronic device 1000, and the actual shapes, sizes, positions and structures of these components are not limited to the following. Figure 1A In addition, when the electronic device 1000 is a device of other forms, the electronic device 1000 may not include the housing 200 and the screen 300 .

[0155] Among them, the screen 300 is installed on the shell 200. The screen 300 and the shell 200 can enclose the inner cavity of the electronic device 1000. The sound-emitting device 100 can be installed in the inner cavity of the electronic device 1000. The shell 200 has a sound outlet 201. The sound outlet 201 connects the inner cavity of the electronic device 1000 with the external space of the electronic device 1000. At this time, the sound emitted by the sound-emitting device 100 can be transmitted to the outside of the electronic device 1000 through the sound outlet 201. It can be understood that the shape of the sound outlet 201 is not limited to Figure 1A The shape of the sound outlet 201 can also be a special-shaped hole. The sound outlet 201 is not limited to Figure 1A Five indicated.

[0156] Figure 1B It is a structural diagram of another implementation of the electronic device 1000 provided in an embodiment of the present application. Figure 1B The electronic device 1000 of the illustrated embodiment is described by taking a notebook computer as an example.

[0157] like Figure 1B As shown, the electronic device 1000 includes a sound device 100, an input terminal 901 and a display terminal 902. For example, the input terminal 901 may be a device having an input component (such as a keyboard or a touch screen). The display terminal 902 may be a device having a display component (such as a display screen).

[0158] It is understandable that since the sound generating device 100 is an internal device of the electronic device 1000, Figure 1B The sound emitting device 100 is schematically indicated by dashed lines. Figure 1BThe following figures and the related drawings only schematically illustrate some components of the electronic device 1000, and the actual shapes, sizes, positions and structures of these components are not limited to the following. Figure 1B and the accompanying drawings below.

[0159] The sound device 100 may be installed in the inner cavity of the input terminal 901. The input terminal 901 has a sound outlet 201. The sound outlet 201 connects the inner cavity of the electronic device 1000 with the external space of the electronic device 1000. At this time, the sound emitted by the sound device 100 may be transmitted to the outside of the electronic device 1000 through the sound outlet 201. In other embodiments, the sound device 100 may be installed in the inner cavity of the display terminal 902.

[0160] Figure 2 It is a schematic diagram of the structure of the sound-emitting device 100 provided in some embodiments of the present application. Figure 3 yes Figure 2 The sound generating device 100 is shown as an exploded schematic diagram in one embodiment.

[0161] like Figure 2 and Figure 3 As shown, the sound-generating device 100 includes a basin frame 1, a first cross bar 2, a second cross bar 3, a first transmission member 4, a second transmission member 5, a first voice coil 6a, a second voice coil 6b, a first magnetic circuit system 7a, a second magnetic circuit system 7b, a first elastic member 8a, a second elastic member 8b, a first diaphragm assembly 9a and a second diaphragm assembly 9b.

[0162] It can be understood that the first cross bar 2, the second cross bar 3, the first transmission member 4, the second transmission member 5, the first voice coil 6a and the second voice coil 6b can constitute the mover of the sound-generating device 100. The basin frame 1, the first magnetic circuit system 7a, the second magnetic circuit system 7b, the first elastic member 8a, the second elastic member 8b, the first diaphragm assembly 9a and the second diaphragm assembly 9b can constitute the stator of the sound-generating device 100. In other embodiments, the first voice coil 6a of the mover of the sound-generating device 100 can be replaced with the first magnetic circuit system 7a of the stator of the sound-generating device 100. And / or, the second voice coil 6b of the mover of the sound-generating device 100 can be replaced with the second magnetic circuit system 7b of the stator of the sound-generating device 100. The details are not repeated here. Among them, the mover refers to a structural member that can move relative to the stator.

[0163] It can be understood that the first voice coil 6a, the second voice coil 6b, the first magnetic circuit system 7a, and the second magnetic circuit system 7b can constitute the driving device 101 of the sound-generating device 100. In other embodiments, when the sound-generating device 100 does not include the second voice coil 6b and the second magnetic circuit system 7b, the first voice coil 6a and the first magnetic circuit system 7a can constitute the driving device 101 of the sound-generating device 100. Of course, in other embodiments, the driving device 101 of the sound-generating device 100 can also adopt other mechanisms, such as a motor.

[0164] It is understandable that the sound generating device 100 may include more or fewer structural components. For example, when the sound generating device 100 includes fewer structural components, the sound generating device 100 may not include the second voice coil 6b, the second magnetic circuit system 7b, the first elastic member 8a or the second elastic member 8b.

[0165] like Figure 2 and Figure 3 As shown, the basin frame 1 includes a first frame 1a and a second frame 1b. The second frame 1b is detachably connected to the first frame 1a. The connection method between the second frame 1b and the first frame 1a will be described in detail below in conjunction with the relevant drawings. No further description will be given here.

[0166] Exemplarily, the first frame 1a and / or the second frame 1b may include plastic parts and metal parts. The plastic parts and the metal parts may be integrally formed into an integrated structure by processes such as in-mold injection molding. In this way, the structural strength of the first frame 1a is better. In other embodiments, the first frame 1a and / or the second frame 1b may also directly use plastic parts with higher hardness, that is, no metal parts are included.

[0167] Figure 4 yes Figure 3 The structure schematic diagram of the first frame 1a shown in another angle. Figure 5 yes Figure 3 The first frame 1a is shown in a schematic diagram at another angle. Figure 5 yes Figure 4 The back view of the first frame 1a shown. For ease of description, illustratively, the thickness direction of the first frame 1a is defined as the Z-axis direction, and the width direction of the first frame 1a is defined as the Y-axis direction. The length direction of the first frame 1a is the X-axis. Exemplarily, the positive direction of the X-axis is defined as the first direction, and the negative direction of the X-axis is defined as the second direction. The positive direction of the Z-axis is the third direction, and the negative direction of the Z-axis is the fourth direction. The positive direction of the Y-axis is the fifth direction. The negative direction of the Y-axis is the sixth direction. In other embodiments, the first direction to the sixth direction can also be flexibly set according to demand to ensure that the first direction is opposite to the second direction, the third direction is opposite to the fourth direction, the first direction is different from the third direction, and the fifth direction is different from the first direction.

[0168] like Figure 4 and Figure 5 As shown, the first frame 1a has a first installation space 191a, a second installation space 192a, a first hollow area 193a, a second hollow area 194a and a third hollow area 195a. The first hollow area 193a can be located between the second hollow area 194a and the third hollow area 195a. In addition, the first hollow area 193a, the second hollow area 194a and the third hollow area 195a can be located between the first installation space 191a and the second installation space 192a.

[0169] like Figure 4 and Figure 5 As shown, the first frame 1a is further provided with a first clamping groove 196a, a second clamping groove 197a, and a third clamping groove 198a which are arranged at intervals. Exemplarily, the cross-sectional shapes of the first clamping groove 196a, the second clamping groove 197a, and the third clamping groove 198a may be in a "funnel" shape. In other embodiments, the cross-sectional shapes of the first clamping groove 196a, the second clamping groove 197a, and the third clamping groove 198a may also be other shapes, such as a rectangle, an irregular shape, etc.

[0170] like Figure 4 and Figure 5 As shown, the first frame 1a is further provided with a rear leakage hole 199a. The rear leakage hole 199a connects the interior of the first frame 1a to the exterior of the first frame 1a. It can be understood that by providing the rear leakage hole 199a, the rear cavity of the sound-generating device 100 can be in an open state, thereby improving the low-frequency performance of the sound-generating device 100. The position, number, size and shape of the rear leakage hole 199a of this embodiment are not specifically limited.

[0171] In addition, the first frame 1a may also be provided with a plurality of matching structures. The plurality of matching structures may be used to connect with external components of the first frame 1a (such as the second frame 1b, the magnetic circuit system, etc.). The matching structures may include structures such as grooves, openings, and protrusions.

[0172] It can be understood that the following will specifically describe an implementation of the structure of the first installation space 191a, the second installation space 192a, the first hollow area 193a, the second hollow area 194a, the third hollow area 195a, the first clamping groove 196a, the second clamping groove 197a, the third clamping groove 198a and the rear leakage hole 199a of the first frame 1a in combination with the relevant drawings.

[0173] like Figure 4 and Figure 5 As shown, the first frame 1a includes a first end portion 11a, a middle portion 12a and a second end portion 13a connected in sequence. For example, the first end portion 11a of the first frame 1a can constitute a basin frame 1 (see Figure 2 and Figure 3 ). The second end 13a of the first frame 1a can constitute the basin frame 1 (see Figure 2 and Figure 3 ) The middle portion 12a of the first frame 1a and the second frame 1b can form a basin frame 1 (see Figure 2 and Figure 3 ) in the middle part.

[0174] Exemplarily, the first end 11a of the first frame 1a includes a top surface 111a and a bottom surface 112a disposed opposite to each other, and a right side surface 113a and a left side surface 114a disposed opposite to each other, wherein the top surface 111a and the bottom surface 112a are connected between the right side surface 113a and the left side surface 114a.

[0175] Exemplarily, the first end portion 11a of the first frame 1a has a first installation space 191a. The first installation space 191a is opened at the top surface 111a and the right side surface 113a of the first end portion 11a of the first frame 1a.

[0176] Exemplarily, the first end 11a of the first frame 1a has a first protrusion 115a. The first protrusion 115a is protruding from the side wall of the first installation space 191a. The first protrusion 115a is provided with a first clamping groove 196a. The first clamping groove 196a forms an opening on the top surface of the first protrusion 115a. The first clamping groove 196a also forms an opening on the surface of the first protrusion 115a facing the first installation space 191a. It is understandable that the number of the first protrusion 115a and the first clamping groove 196a is not specifically limited in this application. In addition, one first protrusion 115a can be provided with one first clamping groove 196a, or multiple first clamping grooves 196a can be provided. Specifically, this application is not limited.

[0177] like Figure 4 and Figure 5 As shown, the first end 11a of the first frame 1a also has a rear leakage hole 199a. The rear leakage hole 199a is connected to the first installation space 191a. The rear leakage hole 199a can form an opening on the left side 114a and the top surface 111a of the first end 11a of the first frame 1a. In other embodiments, the rear leakage hole 199a can also form an opening only on the left side 114a of the first end 11a of the first frame 1a, that is, the top surface 111a of the first end 11a of the first frame 1a no longer forms an opening.

[0178] Exemplarily, the second end 13a of the first frame 1a includes a top surface 131a and a bottom surface 132a disposed opposite to each other, and a right side surface 133a and a left side surface 134a disposed opposite to each other, wherein the top surface 131a and the bottom surface 132a are connected between the right side surface 133a and the left side surface 134a.

[0179] Exemplarily, the second end portion 13a of the first frame 1a has a second installation space 192a. The second installation space 192a is opened at the top surface 131a and the left side surface 134a of the second end portion 13a of the first frame 1a.

[0180] Exemplarily, the second end 13a of the first frame 1a has a second protrusion 135a. The second protrusion 135a is convexly arranged on the side wall of the second installation space 192a. The second protrusion 135a is provided with a second clamping groove 197a. The second clamping groove 197a forms an opening on the top surface 131a of the second protrusion 135a. The second clamping groove 197a also forms an opening on the surface of the second protrusion 135a facing the second installation space 192a. It is understandable that the number of the second protrusion 135a and the second clamping groove 197a is not specifically limited in this application. In addition, one second protrusion 135a can be provided with one second clamping groove 197a, or multiple second clamping grooves 197a can be provided. Specifically, this application is not limited.

[0181] like Figure 4 and Figure 5 As shown, the second end 13a of the first frame 1a further has a rear leakage hole 199a. The rear leakage hole 199a is connected to the second installation space 192a. The rear leakage hole 199a can form an opening on the right side 133a and the top surface 131a of the second end 13a of the first frame 1a. In other embodiments, the rear leakage hole 199a can also form an opening only on the right side 133a of the second end 13a of the first frame 1a, that is, the top surface 131a of the second end 13a of the first frame 1a no longer forms an opening.

[0182] It is understandable that the first end 11a of the first frame 1a and the second end 13a of the first frame 1a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the first end 11a of the first frame 1a and the second end 13a of the first frame 1a are symmetrical structures, and the basic design of the component structure of the second end 13a of the first frame 1a, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first end 11a of the first frame 1a, and the first end 11a of the first frame 1a and the second end 13a of the first frame 1a are allowed to be slightly different in the detailed structure or position arrangement of the components.

[0183] like Figure 4 and Figure 5As shown, the middle part 12a of the first frame 1a includes a first long side 121a and a second long side 122a that are arranged oppositely, and a first short side 123a and a second short side 124a that are arranged oppositely. The first short side 123a and the second short side 124a are connected between the middle part of the first long side 121a and the middle part of the second long side 122a at intervals. In addition, one end of the first long side 121a is connected to the right side 113a of the first end 11a of the first frame 1a, and the other end is connected to the left side 134a of the second end 13a of the first frame 1a. One end of the second long side 122a is connected to the right side 113a of the first end 11a of the first frame 1a, and the other end is connected to the left side 134a of the second end 13a of the first frame 1a.

[0184] The first short side 123a, the second short side 124a, a portion of the first long side 121a, and a portion of the second long side 122a may enclose a first hollow area 193a. The first short side 123a, a portion of the first long side 121a, a portion of the second long side 122a, and the first end 11a of the first frame 1a may enclose a second hollow area 194a. The second short side 124a, a portion of the first long side 121a, a portion of the second long side 122a, and the second end 13a of the first frame 1a may enclose a third hollow area 195a.

[0185] like Figure 4 and Figure 5 As shown, the middle portion 12a of the first frame 1a has a third clamping groove 198a. In one embodiment, the number of the third clamping grooves 198a is four. One third clamping groove 198a is located at the connection between the first long side 121a and the first short side 123a, and one third clamping groove 198a is located at the connection between the second long side 122a and the first short side 123a. One third clamping groove 198a is located at the connection between the first long side 121a and the second short side 124a, and one third clamping groove 198a is located at the connection between the second long side 122a and the second short side 124a. In other embodiments, the number and position of the third clamping grooves 198a are not specifically limited.

[0186] like Figure 4 and Figure 5 As shown, the first long side 121a and / or the second long side 122a has a rear leakage hole 199a. The rear leakage hole 199a of the first long side 121a is described as an example. The rear leakage hole 199a can form an opening on the top surface, the inner side surface and the outer side surface of the first long side 121a. In other embodiments, the rear leakage hole 199a can also form an opening only on the inner side surface and the outer side surface of the first long side 121a. It is understandable that the number of the rear leakage holes 199a of the first long side 121a is not limited to Figure 2 Two indicated.

[0187] Figure 6 yes Figure 3 The structure diagram of the first cross bar 2 and the second cross bar 3 shown is at another angle.

[0188] like Figure 6 As shown, the first cross bar 2 has a first accommodating space 291 and a first limiting groove 292. Exemplarily, the cross-sectional shape of the first limiting groove 292 may be a "funnel" shape. In other embodiments, the cross-sectional shape of the first limiting groove 292 may also be other shapes, such as a rectangle, an irregular shape, etc. It is understood that the position, number, size and shape of the first accommodating space 291 and the first limiting groove 292 are not specifically limited.

[0189] It can be understood that an implementation of the structure of the first accommodating space 291 and the first limiting groove 292 will be described in detail below in conjunction with relevant drawings.

[0190] like Figure 6 As shown, the first crossbar 2 includes a first end portion 21, a middle portion 22 and a second end portion 23 which are connected in sequence.

[0191] For example, the first end portion 21 of the first cross bar 2 has a first limiting groove 292. The first limiting groove 292 may form an opening on the top surface and the side surface of the first end portion 21 of the first cross bar 2. The number of the first limiting grooves 292 of the first end portion 21 of the first cross bar 2 is not limited to Figure 6 In other embodiments, the number of the first limiting grooves 292 of the first end portion 21 of the first crossbar 2 is not specifically limited.

[0192] Exemplarily, the middle portion 22 of the first crossbar 2 has a first accommodating space 291. The first accommodating space 291 may be a space formed by the middle portion 22 of the first crossbar 2 sinking relative to the first end portion 21 and the second end portion 23 of the first crossbar 2.

[0193] For example, a groove or a through hole may be provided on the middle portion 22 of the first cross bar 2 to further reduce the mass of the middle portion 22 of the first cross bar 2 , thereby facilitating a lightweight arrangement of the first cross bar 2 .

[0194] like Figure 6 As shown, the second end portion 23 of the first crossbar 2 includes a first sub-connection portion 231 and a second sub-connection portion 232. The second sub-connection portion 232 is connected to the first sub-connection portion 231. The first sub-connection portion 231 is connected to the middle portion 22 of the first crossbar 2.

[0195] Exemplarily, the first sub-connection portion 231 also has a first limiting groove 292 . The first limiting groove 292 may form openings on the top surface and the side surface of the first sub-connection portion 231 .

[0196] Exemplarily, the top surface 2321 of the second sub-connection part 232 protrudes relative to the top surface 2311 of the first sub-connection part 231. In other words, with the bottom surface 2312 of the first sub-connection part 231 as the reference plane, the height of the top surface 2321 of the second sub-connection part 232 is higher than the height of the top surface 2311 of the first sub-connection part 231. In addition, the bottom surface 2322 of the second sub-connection part 232 protrudes relative to the bottom surface 2312 of the first sub-connection part 231. In other words, with the top surface 2311 of the first sub-connection part 231 as the reference plane, the height of the bottom surface 2322 of the second sub-connection part 232 is higher than the height of the bottom surface 2312 of the first sub-connection part 231. The top surface 2321 and the bottom surface 2322 of the second sub-connection part 232 are arranged in opposite directions in the Z-axis direction. The top surface 2311 and the bottom surface 2312 of the first sub-connection part 231 are arranged in opposite directions in the Z-axis direction. In addition, the top surface 2321 of the second sub-connection portion 232 and the top surface 2311 of the first sub-connection portion 231 face the same side. It can be understood that the top surface 2321 of the second sub-connection portion 232 of the first crossbar 2 and the top surface 2311 of the first sub-connection portion 231 of the first crossbar 2 can constitute the top surface of the second end portion 23 of the first crossbar 2. The bottom surface 2322 of the second sub-connection portion 232 of the first crossbar 2 and the bottom surface 2312 of the first sub-connection portion 231 of the first crossbar 2 can constitute the bottom surface of the second end portion 23 of the first crossbar 2.

[0197] Exemplarily, in the Z-axis direction, the distance between the top surface 2321 of the second sub-connection portion 232 of the first crossbar 2 and the top surface 2311 of the first sub-connection portion 231 of the first crossbar 2 is in the range of 0 to 5 millimeters (mm). For example, in the Z-axis direction, the distance between the top surface 2321 of the second sub-connection portion 232 of the first crossbar 2 and the top surface 2311 of the first sub-connection portion 231 of the first crossbar 2 may be 0, 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0198] Exemplarily, in the Z-axis direction, the distance between the bottom surface 2322 of the second sub-connection portion 232 of the first crossbar 2 and the bottom surface 2312 of the first sub-connection portion 231 of the first crossbar 2 is in the range of 0 to 5 mm. For example, in the Z-axis direction, the distance between the bottom surface 2322 of the second sub-connection portion 232 of the first crossbar 2 and the bottom surface 2312 of the first sub-connection portion 231 of the first crossbar 2 may be 0, 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm.

[0199] like Figure 6As shown, the second cross bar 3 has a second accommodating space 391 and a second limiting groove 392. Exemplarily, the cross-sectional shape of the second limiting groove 392 may be a "funnel" shape. In other embodiments, the cross-sectional shape of the second limiting groove 392 may also be other shapes, such as a rectangle, an irregular shape, etc. It is understood that the position, number, size and shape of the second accommodating space 391 and the second limiting groove 392 are not specifically limited.

[0200] It is understandable that an implementation of the structure of the second accommodating space 391 and the second limiting groove 392 will be described in detail below in conjunction with relevant drawings.

[0201] like Figure 6 As shown, the second crossbar 3 includes a first end portion 31 , a middle portion 32 and a second end portion 33 which are connected in sequence.

[0202] Exemplarily, the first end portion 31 of the second cross bar 3 has a second limiting groove 392. The second limiting groove 392 may form an opening on the top surface and the side surface of the first end portion 31 of the second cross bar 3. The number of the second limiting grooves 392 of the first end portion 31 of the second cross bar 3 is not limited to Figure 6 In other embodiments, the number of the second limiting grooves 392 of the first end portion 31 of the second crossbar 3 is not specifically limited.

[0203] Exemplarily, the middle portion 32 of the second crossbar 3 has a second accommodating space 391. The second accommodating space 391 may be a space formed by the middle portion 32 of the second crossbar 3 sinking relative to the first end portion 31 and the second end portion 33 of the second crossbar 3.

[0204] Exemplarily, a groove or a through hole may be provided on the middle portion 32 of the second cross bar 3 to further reduce the mass of the middle portion 32 of the second cross bar 3 , thereby facilitating a lightweight arrangement of the second cross bar 3 .

[0205] like Figure 6 As shown, the second end portion 33 of the second crossbar 3 includes a first sub-connection portion 331 and a second sub-connection portion 332. The second sub-connection portion 332 is connected to the first sub-connection portion 331. The first sub-connection portion 331 is connected to the middle portion 32 of the second crossbar 3.

[0206] Exemplarily, the first sub-connection portion 331 also has a second limiting groove 392 . The second limiting groove 392 may form an opening on the top surface and the side surface of the first sub-connection portion 331 .

[0207] Exemplarily, the top surface 3321 of the second sub-connecting portion 332 protrudes relative to the top surface 3311 of the first sub-connecting portion 331. In other words, with the bottom surface 3312 of the first sub-connecting portion 331 as the reference plane, the height of the top surface 3321 of the second sub-connecting portion 332 is higher than the height of the top surface 3311 of the first sub-connecting portion 331. In addition, the bottom surface 3322 of the second sub-connecting portion 332 protrudes relative to the bottom surface 3312 of the first sub-connecting portion 331. In other words, with the top surface 3311 of the first sub-connecting portion 331 as the reference plane, the height of the bottom surface 3322 of the second sub-connecting portion 332 is higher than the height of the bottom surface 3312 of the first sub-connecting portion 331. In the Z-axis direction, the top surface 3321 and the bottom surface 3322 of the second sub-connecting portion 332 are arranged in opposite directions. In the Z-axis direction, the top surface 3311 and the bottom surface 3312 of the first sub-connecting portion 331 are arranged in opposite directions. The top surface 3321 of the second sub-connection portion 332 and the top surface 3311 of the first sub-connection portion 331 face the same side. It can be understood that the top surface 3321 of the second sub-connection portion 332 of the second crossbar 3 and the top surface 3311 of the first sub-connection portion 331 of the second crossbar 3 can constitute the top surface of the second end portion 33 of the second crossbar 3. The bottom surface 3322 of the second sub-connection portion 332 of the second crossbar 3 and the bottom surface 3312 of the first sub-connection portion 331 of the second crossbar 3 can constitute the bottom surface of the second end portion 33 of the second crossbar 3.

[0208] Exemplarily, in the Z-axis direction, the distance between the top surface 3321 of the second sub-connection portion 332 of the second crossbar 3 and the top surface 3311 of the first sub-connection portion 331 of the second crossbar 3 is in the range of 0 to 5 mm. For example, in the Z-axis direction, the distance between the top surface 3321 of the second sub-connection portion 332 of the second crossbar 3 and the top surface 3311 of the first sub-connection portion 331 of the second crossbar 3 is 0, 1 mm, 2 mm, 3 mm, 4 mm or 5 mm.

[0209] Exemplarily, in the Z-axis direction, the distance between the bottom surface 3322 of the second sub-connection portion 332 of the second crossbar 3 and the bottom surface 3312 of the first sub-connection portion 331 of the second crossbar 3 is in the range of 0 to 5 mm. For example, in the Z-axis direction, the distance between the bottom surface 3322 of the second sub-connection portion 332 of the second crossbar 3 and the bottom surface 3312 of the first sub-connection portion 331 of the second crossbar 3 is 0, 1 mm, 2 mm, 3 mm, 4 mm or 5 mm.

[0210] It is understandable that the first crossbar 2 and the second crossbar 3 can be of the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the first crossbar 2 and the second crossbar 3 are symmetrical structures, and the basic design of the component structure of the second crossbar 3, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first crossbar 2, and the first crossbar 2 and the second crossbar 3 are allowed to be slightly different in the detailed structure or position arrangement of the components.

[0211] Figure 7 yes Figure 6 The schematic diagram of the assembly of the first cross bar 2, the second cross bar 3 and the first voice coil 6a, the second voice coil 6b is shown.

[0212] like Figure 6 and Figure 7 As shown, the first voice coil 6a is installed in the first accommodating space 291 of the first cross bar 2. Exemplarily, the first voice coil 6a can be fixed in the first accommodating space 291 of the first cross bar 2 by insulating glue.

[0213] Exemplarily, the winding plane of the first voice coil 6a is substantially parallel to the plane of the middle portion 22 of the first crossbar 2. In other words, the first voice coil 6a can be placed flat in the first accommodation space 291 of the first crossbar 2. This is conducive to achieving a thin configuration of the sound generating device 100.

[0214] Exemplarily, the first voice coil 6a includes a first long segment 61a and a second long segment 62a disposed opposite to each other, and a first short segment 63a and a second short segment 64a disposed opposite to each other. The first short segment 63a and the second short segment 64a of the first voice coil 6a are connected between the first long segment 61a and the second long segment 62a of the first voice coil 6a.

[0215] Exemplarily, the first long segment 61a and the second long segment 62a of the first voice coil 6a may both be in a straight line shape. The first short segment 63a and the second short segment 64a of the first voice coil 6a may both be in an arc shape. At this time, the shape of the first voice coil 6a is roughly in a "racetrack" shape.

[0216] Exemplarily, the ratio of the length L2 of the first voice coil 6a to the width D1 of the first voice coil 6a may be in the range of 0.1 to 10. It is understood that the length L2 of the first voice coil 6a may be the longest distance between the first short segment 63a and the second short segment 64a of the first voice coil 6a. The width D1 of the first voice coil 6a may be the longest distance between the first long segment 61a and the second long segment 62a of the first voice coil 6a.

[0217] Exemplarily, a ratio of the length L2 of the first voice coil 6a to the width D1 of the first voice coil 6a may be in the range of 0.5 to 5.

[0218] Exemplarily, when the first voice coil 6a is installed in the first accommodating space 291 of the first cross bar 2, the length direction of the first voice coil 6a (i.e., the length extension direction of the first long strip segment 61a or the length extension direction of the second long strip segment 62a) is basically perpendicular to the length direction of the first cross bar 2.

[0219] For example, the shape of the middle portion 22 of the first crossbar 2 can be adapted to the shape of the first voice coil 6a, so as to avoid redundant structures in the middle portion 22 of the first crossbar 2, thereby facilitating the lightweight configuration of the first crossbar 2.

[0220] like Figure 6 and Figure 7 As shown, the second voice coil 6b is installed in the second accommodating space 391 of the second cross bar 3. It is understandable that the second voice coil 6b and the first voice coil 6a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the second voice coil 6b and the first voice coil 6a are symmetrical structures. The basic design of the component structure of the second voice coil 6b, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first voice coil 6a. At the same time, the second voice coil 6b and the first voice coil 6a are allowed to be slightly different in the detailed structure or position arrangement of the components. The specific application will not be repeated.

[0221] Figure 8 yes Figure 3 The structure diagram of an implementation mode of the first transmission member 4 and the second transmission member 5 shown is at another angle. Fig. 9 yes Figure 8 The structure diagram of the first transmission member 4 and the second transmission member 5 shown is at another angle.

[0222] like Figure 8 and Fig. 9 As shown, the first transmission member 4 includes a first end 41, a middle portion 42 and a second end 43 which are connected in sequence. In other words, the middle portion 42 of the first transmission member 4 is connected between the first end 41 and the second end 43 of the first transmission member 4. Among them, the middle portion 42 of the first transmission member 4 protrudes to the same side of the first end 41 and the second end 43 of the first transmission member 4. The first transmission member 4 is roughly in the shape of a "boss". Exemplarily, the connection between the first end 41 and the middle portion 42 of the first transmission member 4 is a first bending portion. The connection between the second end 43 and the middle portion 42 of the first transmission member 4 is a second bending portion. Both the first bending portion and the second bending portion can be bent.

[0223] Exemplarily, the middle part 42 of the first transmission member 4 includes a first connecting member 44. The number of the first connecting members 44 can be one or more. Hereinafter, the case where the number of the first connecting members 44 is one will be described as an example. Regarding the structure where the number of the first connecting members 44 is more than one, it will be specifically described in combination with relevant drawings hereinafter. It will not be elaborated here.

[0224] As Figure 8 and Fig. 9 shown, the first connecting member 44 includes a first plate member 441, a second plate member 442, and a third plate member 443 that are connected in sequence. In other words, the second plate member 442 is connected between the first plate member 441 and the third plate member 443. The first plate member 441 and the third plate member 443 are bent toward the same side of the second plate member 442. The first connecting member 44 is generally in the shape of "﹝". Among them, the first plate member 441 is connected to the first end portion 41 of the first transmission member 4. The third plate member 443 is connected to the second end portion 43 of the first transmission member 4. In addition, the connection portion between the first plate member 441 and the second plate member 442 is a third bending portion. The connection portion between the third plate member 443 and the second plate member 442 is a fourth bending portion. Both the third bending portion and the fourth bending portion can be bent. It can be understood that the first end portion 41 of the first transmission member 4 can also be referred to as a fourth plate member. The second end portion 43 of the first transmission member 4 can also be referred to as a fifth plate member.

[0225] Exemplarily, the first included angle a between the first plate member 441 and the second plate member 442 satisfies: 90° < a < 180°. It can be understood that when the connection portion (i.e., the third bending portion) between the first plate member 441 and the second plate member 442 is bent, the first included angle a can increase or decrease.

[0226] Exemplarily, the second included angle b between the third plate member 443 and the second plate member 442 satisfies: 90° < b < 180°. It can be understood that when the connection portion (i.e., the fourth bending portion) between the third plate member 443 and the second plate member 442 is bent, the second included angle b can increase or decrease.

[0227] Exemplarily, the third included angle c between the first plate member 441 and the first end portion 41 of the first transmission member 4 satisfies: 90° < c < 180°. It can be understood that when the connection portion (i.e., the first bending portion) between the first plate member 441 and the first end portion 41 of the first transmission member 4 is bent, the third included angle c can increase or decrease.

[0228] Exemplarily, the fourth included angle d between the first plate member 441 and the second end portion 43 of the first transmission member 4 satisfies: 90° < d < 180°. It can be understood that when the connection portion (i.e., the second bending portion) between the first plate member 441 and the second end portion 43 of the first transmission member 4 is bent, the fourth included angle d can increase or decrease.

[0229] Several implementation methods of the first transmission member 4 will be specifically introduced below in conjunction with the relevant drawings. It is understandable that the specific structure of the first transmission member 4 is not limited to the several structures introduced below. As long as the first transmission member 4 can achieve the movement introduced above, it is within the protection scope of this application.

[0230] Fig.10 yes Figure 8 The first transmission member 4 is shown in an exploded schematic diagram in one embodiment. Fig.11 yes Fig.10 The structural schematic diagram of the first transmission member 4 is shown.

[0231] like Fig.10 and Fig.11 As shown, the first transmission member 4 includes a flexible member 45 and a plurality of hard patches 46 .

[0232] Exemplarily, the flexible member 45 is an integrally formed structural member. Exemplarily, the flexible member 45 can be nylon mesh, metal mesh, film material, rubber or metal foil.

[0233] Exemplarily, the flexible member 45 includes a first end 451, a middle portion 452, and a second end 453. The middle portion 452 of the flexible member 45 protrudes to the same side of the first end 451 and the second end 453 of the flexible member 45. The flexible member 45 is generally in the shape of a "boss". The connection between the first end 451 and the middle portion 452 of the flexible member 45 forms a first bending portion of the first transmission member 4. The connection between the second end 453 and the middle portion 452 of the flexible member 45 forms a second bending portion of the first transmission member 4.

[0234] Exemplarily, the middle portion 452 of the flexible member 45 includes a first connection portion 454. The number of the first connection portion 454 may be one or more. The following description is made by taking the number of the first connection portion 454 as one as an example. Regarding the structure in which the number of the first connection portion 454 is more than one, the following description will be made in detail in conjunction with the relevant drawings. No further description will be given here.

[0235] The first connecting portion 454 includes a first sub-portion 4541, a second sub-portion 4542 and a third sub-portion 4543 which are connected in sequence. In other words, the second sub-portion 4542 is connected between the first sub-portion 4541 and the third sub-portion 4543. The first sub-portion 4541 and the third sub-portion 4543 both protrude toward the same side of the second sub-portion 4542. The middle portion 452 of the flexible member 45 is roughly in a "﹝" shape. The first sub-portion 4541 is connected to the first end 451 of the flexible member 45. The third sub-portion 4543 is connected to the second end 453 of the flexible member 45. The connection between the first sub-portion 4541 and the second sub-portion 4542 forms the third bending portion of the first transmission member 4. The connection between the second sub-portion 4542 and the third sub-portion 4543 forms the fourth bending portion of the first transmission member 4.

[0236] like Fig.10 and Fig.11 As shown, the plurality of hard patches 46 include a first hard patch 461, a second hard patch 462, and a third hard patch 463. The first hard patch 461, the second hard patch 462, and the third hard patch 463 may be made of metal sheets such as aluminum sheets and steel sheets, or may be plastic sheets with high hardness, for example, liquid crystal polymer (LCP).

[0237] like Fig.10 and Fig.11 As shown, the first hard patch 461 can be fixed on the first surface of the first sub-section 4541 of the flexible member 45. The second hard patch 462 can be fixed on the first surface of the second sub-section 4542 of the flexible member 45. The third hard patch 463 can be fixed on the first surface of the third sub-section 4543 of the flexible member 45. In other words, the flexible member 45 can realize single-sided mounting of hard patches. Among them, the first hard patch 461 and the second hard patch 462 are arranged at intervals, and a first gap is formed. The first gap is directly opposite to the connection between the first sub-section 4541 and the second sub-section 4542. The second hard patch 462 and the third hard patch 463 are arranged at intervals, and a second gap is formed. The second gap is directly opposite to the connection between the second sub-section 4542 and the third sub-section 4543.

[0238] It is understandable that the first hard patch 461 can be used to improve the strength of the first sub-section 4541 of the flexible member 45. The second hard patch 462 can be used to improve the strength of the second sub-section 4542 of the flexible member 45. The third hard patch 463 can be used to improve the strength of the third sub-section 4543 of the flexible member 45. In addition, since the connection between the first sub-section 4541 and the second sub-section 4542 is directly opposite to the first gap between the first hard patch 461 and the second hard patch 462, and the connection between the second sub-section 4542 and the third sub-section 4543 is directly opposite to the second gap between the second hard patch 462 and the third hard patch 463, the connection between the first sub-section 4541 and the second sub-section 4542, and the connection between the second sub-section 4542 and the third sub-section 4543 retain the original flexibility. In this way, the connection between the first sub-section 4541 and the second sub-section 4542 can be bent. The connection between the second sub-portion 4542 and the third sub-portion 4543 can also be bent.

[0239] It can be understood that the first sub-portion 4541 of the flexible member 45 and the first hard patch 461 can constitute the first plate member 441 of the first transmission member 4 (see Figure 8 and Fig. 9 The second sub-portion 4542 of the flexible member 45 and the second hard patch 462 can constitute the second plate member 442 of the first transmission member 4 (see Figure 8 and Fig. 9 The third sub-portion 4543 of the flexible member 45 and the third hard patch 463 can constitute the third plate member 443 of the first transmission member 4 (see Figure 8 and Fig. 9 ).

[0240] In other embodiments, the first hard patch 461 may also be fixed on the second surface of the first subsection 4541 of the flexible member 45. The second hard patch 462 may also be fixed on the second surface of the second subsection 4542 of the flexible member 45. The third hard patch 463 may also be fixed on the second surface of the third subsection 4543 of the flexible member 45. Specifically, this application does not limit it. Among them, the second surface of the first subsection 4541 of the flexible member 45 is set back to the first surface of the first subsection 4541 of the flexible member 45. The second surface of the second subsection 4542 of the flexible member 45 is set back to the first surface of the second subsection 4542 of the flexible member 45. The second surface of the third subsection 4543 of the flexible member 45 is set back to the first surface of the third subsection 4543 of the flexible member 45.

[0241] In other embodiments, the hard patch 46 may also include a fourth hard patch (not shown), a fifth hard patch (not shown) and a sixth hard patch (not shown). The fourth hard patch and the first hard patch 461 are respectively fixed on the first and second surfaces of the first subsection 4541 of the flexible member 45. The fifth hard patch and the second hard patch 462 are respectively fixed on the first and second surfaces of the second subsection 4542 of the flexible member 45. The sixth hard patch and the third hard patch 463 are respectively fixed on the first and second surfaces of the third subsection 4543 of the flexible member 45. In this way, the flexible member 45 can realize double-sided mounting of hard patches. Among them, the fourth hard patch and the fifth hard patch are spaced apart, that is, there is a gap between the fourth hard patch and the fifth hard patch. The fifth hard patch and the sixth hard patch are spaced apart, that is, there is a gap between the fifth hard patch and the sixth hard patch. It is understandable that the fourth hard patch can be used to further improve the strength of the first sub-portion 4541 of the flexible member 45. The fifth hard patch can be used to further improve the strength of the second sub-portion 4542 of the flexible member 45. The sixth hard patch can be used to further improve the strength of the third sub-portion 4543 of the flexible member 45.

[0242] like Fig.11 As shown, the end of the first hard patch 461 facing the second hard patch 462 may be provided with a first cutout 4611. The first cutout 4611 faces away from the first sub-portion 4541 of the flexible member 45. At this time, the end of the first hard patch 461 facing the second hard patch 462 is roughly wedge-shaped.

[0243] In addition, the end of the second hard patch 462 facing the first hard patch 461 may be provided with a second incision 4621. The second incision 4621 faces away from the second subsection 4542 of the flexible member 45. At this time, the end of the second hard patch 462 facing the first hard patch 461 is roughly wedge-shaped. Among them, the second incision 4621 and the first incision 4611 enclose a space. In this way, when the connection between the first subsection 4541 and the second subsection 4542 of the flexible member 45 is bent, the second incision 4621 and the first incision 4611 can provide the first hard patch 461 and the second hard patch 462 with space to avoid each other, that is, the first subsection 4541 and the second subsection 4542 are not easy to interfere.

[0244] It is understandable that the arrangement of the end of the second hard patch 462 facing the third hard patch 463 can also refer to the arrangement of the end of the first hard patch 461 facing the second hard patch 462. The arrangement of the end of the third hard patch 463 facing the second hard patch 462 can also refer to the arrangement of the end of the second hard patch 462 facing the first hard patch 461. The details are not repeated here.

[0245] Fig.12 yes Figure 8 The structure diagram of the first transmission member 4 in one embodiment is shown.

[0246] like Fig.12 As shown, the first transmission member 4 includes a plurality of hard members 47a and a plurality of injection molded members 47b, and two adjacent hard members 47a are connected by the injection molded members 47b.

[0247] Illustratively, the plurality of hard parts 47a include a first hard part 471a, a second hard part 472a, a third hard part 473a, a fourth hard part 474a, and a fifth hard part 475a.

[0248] The plurality of injection molded parts 47b include a first flexible part 471b, a second flexible part 472b, a third flexible part 473b and a fourth flexible part 474b.

[0249] The first flexible member 471b connects the first hard member 471a and the second hard member 472a. The second flexible member 472b connects the second hard member 472a and the third hard member 473a. The third flexible member 473b connects the third hard member 473a and the fourth hard member 474a. The fourth flexible member 474b connects the fourth hard member 474a and the fifth hard member 475a.

[0250] For example, the first hard component 471a, the second hard component 472a, the third hard component 473a, the fourth hard component 474a and the fifth hard component 475a may be made of metal plates such as aluminum plates and steel plates, or plastic plates with high hardness, such as LCP. The first flexible component 471b, the second flexible component 472b, the third flexible component 473b and the fourth flexible component 474b may be made of silicone rubber or the like.

[0251] It is understandable that the first flexible member 471b can be formed between the first hard member 471a and the second hard member 472a by an injection molding process. The ends of the first hard member 471a and the second hard member 472a can be embedded in the first flexible member 471b. The arrangement of the second flexible member 472b, the third flexible member 473b and the fourth flexible member 474b can all refer to the arrangement of the first flexible member 471b. The details will not be repeated here.

[0252] It can be understood that the first hard member 471a can constitute the first end 41 of the first transmission member 4. The second hard member 472a, the third hard member 473a, and the fourth hard member 474a can constitute the middle portion 42 of the first transmission member 4. The fifth hard member 475a can constitute the second end 43 of the first transmission member 4. The first flexible member 471b can constitute the first bending portion of the first transmission member 4. The second flexible member 472b can constitute the third bending portion of the first transmission member 4. The third flexible member 473b can constitute the fourth bending portion of the first transmission member 4. The fourth flexible member 474b can constitute the second bending portion of the first transmission member 4.

[0253] The structure of the first transmission member 4 is described in detail above with reference to the relevant drawings. The structure of the second transmission member 5 will be described in detail below with reference to the relevant drawings.

[0254] like Figure 8 and Fig. 9 As shown, the second transmission member 5 includes a first end 51, a middle portion 52 and a second end 53 connected in sequence. Among them, the middle portion 52 of the second transmission member 5 is recessed to the same side of the first end 51 and the second end 53 of the second transmission member 5. In addition, the middle portion 52 of the second transmission member 5 is provided with a second avoidance hole 544. Exemplarily, the connection between the first end 51 and the middle portion 52 of the second transmission member 5 is the first bending portion of the second transmission member 5. The connection between the second end 53 and the middle portion 52 of the second transmission member 5 is the second bending portion of the second transmission member 5. Both the first bending portion and the second bending portion of the second transmission member 5 can be bent.

[0255] Exemplarily, the middle portion 52 of the second transmission member 5 includes a second connecting member 54. The number of the second connecting members 54 may be one or more. The following description is based on the example that the number of the second connecting members 54 is two. More structures of the second transmission member 5 will be described in detail below in conjunction with the relevant drawings. No further description will be given here.

[0256] It is understandable that the second connecting member 54 of the second transmission member 5 and the first connecting member 44 of the first transmission member 4 may be of the same or similar structure, a symmetrical or partially symmetrical structure, or a different structure. In the present embodiment, the second connecting member 54 of the second transmission member 5 has the same structure as the first connecting member 44 of the first transmission member 4. The basic design of the component structure of the second connecting member 54 of the second transmission member 5, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first connecting member 44 of the first transmission member 4. At the same time, the second connecting member 54 of the second transmission member 5 and the first connecting member 44 of the first transmission member 4 are allowed to be slightly different in the detailed structure or position arrangement of the components.

[0257] like Figure 8 and Fig. 9As shown, the first plate 541 of the second connecting member 54 is connected to the first end 51 of the second transmission member 5. The third plate 543 of the second connecting member 54 is connected to the second end 53 of the second transmission member 5. The second plate 542 of the second connecting member 54 sinks relative to the first plate 541 and the third plate 543 of the second connecting member 54. In addition, the connection between the first plate 541 of the second connecting member 54 and the second plate 542 of the second connecting member 54 forms a third bending portion. The connection between the second plate 542 of the second connecting member 54 and the third plate 543 of the second connecting member 54 forms a fourth bending portion. The third bending portion and the fourth bending portion can be bent. In addition, two adjacent second connecting members 54 can be spaced apart. The space between the two second connecting members 54 forms a second avoidance hole 544.

[0258] It is understandable that the specific structure of the second transmission member 5 can refer to the specific structure of the first transmission member 4 (eg Figures 10 to 12 It is understood that any second transmission member 5 that can realize the motion described above is within the protection scope of this application.

[0259] Fig.13 yes Figure 2 A partial structural schematic diagram of an embodiment of a sound-generating device 100 is shown. Fig.14 yes Fig.13 The structure diagram of part of the sound-generating device 100 shown is shown at another angle.

[0260] See also Fig.13 and Fig.14 , and combined with Figures 6 to 9 As shown, the first end 51 of the second transmission member 5 is fixed to the top surface 2321 of the second sub-connection portion 232 of the second end 23 of the first crossbar 2. The second end 53 of the second transmission member 5 is fixed to the top surface 3321 of the second sub-connection portion 332 of the second end 33 of the second crossbar 3.

[0261] Exemplarily, the middle portion 52 of the second transmission member 5 protrudes relative to the bottom surface 2322 of the second sub-connecting portion 232 of the first crossbar 2 and the bottom surface 3322 of the second sub-connecting portion 332 of the second crossbar 3 .

[0262] In other embodiments, when the second end 23 of the first cross bar 2 is other structures (for example, the second sub-connection portion 232 not included in the second end 23 of the first cross bar 2), the first end 51 of the second transmission member 5 can be fixed to the top surface of the first sub-connection portion 231 of the second end 23 of the first cross bar 2. When the second end 33 of the second cross bar 3 is other structures (for example, the second sub-connection portion 332 not included in the second end 33 of the second cross bar 3), the first end 51 of the second transmission member 5 can be fixed to the top surface of the first sub-connection portion 331 of the second end 33 of the second cross bar 3.

[0263] See also Fig.13 and Fig.14 , and combined with Figures 6 to 9 As shown, the first end 41 of the first transmission member 4 is fixed to the bottom surface 2322 of the second sub-connection portion 232 of the second end 23 of the first crossbar 2. The second end 43 of the first transmission member 4 is fixed to the bottom surface 3322 of the second sub-connection portion 332 of the second end 33 of the second crossbar 3.

[0264] Exemplarily, the middle portion 42 of the first transmission member 4 protrudes relative to the top surface 2321 of the second sub-connecting portion 232 of the first crossbar 2 and the top surface 3321 of the second sub-connecting portion 332 of the second crossbar 3 .

[0265] In other embodiments, when the second end 23 of the first crossbar 2 is other structures (for example, the second sub-connection portion 232 not included in the second end 23 of the first crossbar 2), the first end 41 of the first transmission member 4 can be fixed to the bottom surface of the first sub-connection portion 231 of the second end 23 of the first crossbar 2. When the second end 33 of the second crossbar 3 is other structures (for example, the second sub-connection portion 332 not included in the second end 33 of the second crossbar 3), the first end 41 of the first transmission member 4 can be fixed to the bottom surface of the first sub-connection portion 331 of the second end 33 of the second crossbar 3.

[0266] See also Fig.13 and Fig.14 , the middle portion 42 of the first transmission member 4 passes through the second avoidance hole 544 of the second transmission member 5. Fig.13 In the embodiment, the middle portion 42 of the first transmission member 4 protrudes in a direction away from the middle portion 52 of the second transmission member 5. The middle portion 52 of the second transmission member 5 is recessed in a direction away from the middle portion 42 of the first transmission member 4. Fig.14 In the embodiment, the relative protrusion or relative depression of the middle portion 42 of the first transmission member 4 is opposite to that of the middle portion 52 of the second transmission member 5. In this way, the middle portion 52 of the second transmission member 5 crosses the middle portion 42 of the first transmission member 4 and is arranged at intervals.

[0267] Exemplarily, the first plate 441 and the third plate 443 of the middle portion 42 of the first transmission member 4 pass through the second avoidance hole 544 of the second transmission member 5. The second plate 442 of the middle portion 42 of the first transmission member 4 is located at the top of the first crossbar 2 and the second crossbar 3. The second plate 542 of the middle portion 52 of the second transmission member 5 is located at the bottom of the first crossbar 2 and the second crossbar 3.

[0268] See also Fig.13 and Fig.14 , the middle portion 42 of the first transmission member 4 and the middle portion 52 of the second transmission member 5 are spaced apart in the Y-axis direction, that is, the middle portion 42 of the first transmission member 4 and the middle portion 52 of the second transmission member 5 are not in contact in the Y-axis direction. In this way, when the middle portion 42 of the first transmission member 4 and the middle portion 52 of the second transmission member 5 move along the Z-axis direction, the middle portion 42 of the first transmission member 4 and the middle portion 52 of the second transmission member 5 will not interfere with each other.

[0269] Fig.15 yes Figure 3 The structure diagram of the first elastic member 8a shown in one embodiment.

[0270] like Figure 8 As shown, the first elastic member 8a can be an integral structural member. For example, the first elastic member 8a can be formed by an injection molding process. The material of the first elastic member 8a can be a flexible plastic material. For example, silicone, rubber or TPU. In this way, the first elastic member 8a can be deformed under the action of an external force.

[0271] Exemplarily, the first elastic member 8a includes a first end portion 81a, a middle portion 82a and a second end portion 83a which are connected in sequence. The middle portion 82a of the first elastic member 8a is a hollow structure. The middle portion 82a of the first elastic member 8a can enclose a first space 84a.

[0272] Exemplarily, the wall surface of the first space 84a includes a first inner surface 841a, a second inner surface 842a, a third inner surface 843a and a fourth inner surface 844a connected in sequence. The second inner surface 842a is connected to the first inner surface 841a. The first inner surface 841a and the second inner surface 842a are arranged opposite to each other. The third inner surface 843a and the fourth inner surface 844a are arranged opposite to each other.

[0273] Exemplarily, the wall surface of the first space 84a is rhombus-shaped, that is, the first inner surface 841a, the second inner surface 842a, the third inner surface 843a and the fourth inner surface 844a form a rhombus. In other embodiments, the first inner surface 841a, the second inner surface 842a, the third inner surface 843a and the fourth inner surface 844a may also form a circle, a semicircle or a semi-rhombus.

[0274] For example, the first inner surface 841a, the second inner surface 842a, the third inner surface 843a and the fourth inner surface 844a may be arcuate surfaces, and the middle parts of the first inner surface 841a, the second inner surface 842a, the third inner surface 843a and the fourth inner surface 844a may protrude toward the first space 84a.

[0275] In other embodiments, the first elastic member 8a may also adopt other structures. More structures of the first elastic member 8a will be described in detail below in conjunction with the relevant drawings, and will not be repeated here.

[0276] It is understandable that the second elastic member 8b and the first elastic member 8a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the first elastic member 8a and the second elastic member 8b are symmetrical structures. The basic design of the component structure of the second elastic member 8b, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first elastic member 8a. At the same time, the first elastic member 8a and the second elastic member 8b are allowed to be slightly different in the detailed structure or position arrangement of the components. The structure of the second elastic member 8b is not described in detail here.

[0277] Fig.16 yes Figure 2 A partial structural schematic diagram of an embodiment of a sound-generating device 100 is shown.

[0278] See also Fig.16 , and combined with Fig.15 As shown, the first end 81a of the first elastic member 8a is fixedly connected to the first frame 1a. The second end 83a of the first elastic member 8a is fixedly connected to the first cross bar 2. It can be understood that since the first elastic member 8a can be deformed under the action of external force, the first cross bar 2 can move relative to the first frame 1a through the first elastic member 8a, that is, the first cross bar 2 is movably connected to the first frame 1a through the first elastic member 8a.

[0279] Exemplarily, the first end 81a of the first elastic member 8a can be inserted into the first positioning groove 196a of the first frame 1a. The second end 83a of the first elastic member 8a can also be inserted into the first limiting groove 292 of the first crossbar 2. Among them, the first end 81a of the first elastic member 8a can be tightly matched with the first positioning groove 196a of the first frame 1a. The second end 83a of the first elastic member 8a can also be tightly matched with the first limiting groove 292 of the first crossbar 2. In this way, the first elastic member 8a can be stably connected to the first frame 1a and the first crossbar 2.

[0280] For example, the number of the first elastic members 8a may be four. Two of the first elastic members 8a may be connected between the first end 11a of the first frame 1a and the first end 21 of the first crossbar 2. Another two first elastic members 8a may be connected between the middle portion 12a of the first frame 1a and the second end 23 of the first crossbar 2. In this way, the connection between the first frame 1a and the first crossbar 2 is more stable.

[0281] Exemplarily, by setting the shape of the first space 84a of the first elastic member 8a to be a diamond shape, it is helpful to improve the connection stability between the first elastic member 8a and the first frame 1a and the first crossbar 2.

[0282] like Fig.16 As shown, the second cross bar 3 can be movably connected to the first frame 1a through the second elastic member 8b. The connection method of the second elastic member 8b with the second cross bar 3 and the first frame 1a can refer to the connection method of the first elastic member 8a with the first cross bar 2 and the first frame 1a. For example, the first end 81b of the second elastic member 8b is inserted into the second clamping groove 198a of the first frame 1a. The second end 83b of the second elastic member 8b is inserted into the second limiting groove 392 of the second cross bar 3. Among them, the first end 81b of the second elastic member 8b can be tightly matched with the second clamping groove 198a of the first frame 1a. The second end 83b of the second elastic member 8b can also be tightly matched with the second limiting groove 392 of the second cross bar 3. The details are not repeated here.

[0283] In this embodiment, the first cross bar 2 can move relative to the first frame 1a along the X-axis direction (including the positive direction of the X-axis and the negative direction of the X-axis) through the first elastic member 8a under the driving force. The second cross bar 3 can move relative to the first frame 1a along the X-axis direction (including the positive direction of the X-axis and the negative direction of the X-axis) through the second elastic member 8b under the driving force. The formation principle of the driving force and the corresponding specific structure will be specifically described below in conjunction with the relevant drawings.

[0284] like Fig.16 As shown, when the first cross bar 2 is movably connected to the first frame 1a through the first elastic member 8a, the first end 21 of the first cross bar 2 can be located in the first installation space 191a of the first frame 1a. In addition, at least a portion of the middle portion 22 of the first cross bar 2 can be located in the second hollow area 194a of the first frame 1a. At least a portion of the second end 23 of the first cross bar 2 can be located in the first hollow area 193a of the first frame 1a.

[0285] In addition, when the second cross bar 3 can be movably connected to the first frame 1a through the second elastic member 8b, the first end 31 of the second cross bar 3 can be located in the second installation space 192a of the first frame 1a. At least a portion of the middle portion 32 of the second cross bar 3 can be located in the third hollow area 195a of the first frame 1a. At least a portion of the second end 33 of the second cross bar 3 can be located in the first hollow area 193a of the first frame 1a.

[0286] It can be understood that since at least a portion of the second end 23 of the first cross bar 2 can be located in the first hollow area 193a of the first frame 1a, at least a portion of the second end 33 of the second cross bar 3 can be located in the first hollow area 193a of the first frame 1a, so that at least a portion of the first transmission member 4 and the second transmission member 5 connected between the second end 23 of the first cross bar 2 and the second end 33 of the second cross bar 3 can be located in the first hollow area 193a of the first frame 1a.

[0287] Fig.17 yes Figure 2 A partial structural schematic diagram of the sound-generating device 100 is shown. Fig.18 yes Figure 2 The sound generating device 100 is shown as a partial cross-sectional view of an embodiment at line AA.

[0288] like Fig.17 and Fig.18 As shown, the first magnetic circuit system 7a includes a first magnetic circuit component 70A and a second magnetic circuit component 70B. Among them, the first magnetic circuit component 70A includes a first magnetic part 71a and a first magnetic conductive part 73a. The second magnetic circuit component 70B includes a second magnetic part 72a and a second magnetic conductive part 74a. Among them, the first magnetic part 71a and the second magnetic part 72a can be magnets or other magnetic parts, and the first magnetic conductive part 73a and the second magnetic conductive part 74a are made of magnetic conductive materials, such as silicon steel sheets and alloys formed by various iron products and rare earth elements. In other embodiments, the first magnetic circuit system 7a may include more or fewer components. For example, the first magnetic circuit system 7a may not include the second magnetic part 72a and / or the second magnetic conductive part 74a. Or the first magnetic circuit system 7a may not include the first magnetic conductive part 73a and / or the second magnetic conductive part 74a. For another example, the first magnetic conductive part 73a of the first magnetic circuit component 70A may also be replaced by other metal parts. The second magnetic conductive member 74a of the second magnetic circuit assembly 70B may also be replaced by other metal parts.

[0289] like Fig.17 and Fig.18As shown, the first magnetic conductive member 73a and the first magnetic member 71a can be fixed on the top surface of the first frame 1a. The first magnetic member 71a can also be fixed on the first magnetic conductive member 73a. The first magnetic member 71a is located between the first magnetic conductive member 73a and the first voice coil 6a. The first voice coil 6a faces the first magnetic member 71a. When the first voice coil 6a is energized, the first voice coil 6a generates a first Ampere force under the magnetic field of the first magnetic member 71a, and under the action of the first Ampere force, the first cross bar 2 can be driven to move along the X-axis direction (including the positive and negative directions of the X-axis). It can be understood that the first magnetic conductive member 73a can be used to increase the magnetic field strength of the first magnetic member 71a. The first magnetic conductive member 73a can also be used to cover the first magnetic member 71a and provide a fixed position for the first magnetic member 71a.

[0290] In addition, the second magnetic member 72a and the second magnetic conductive member 74a can be fixed on the bottom surface of the first frame 1a. The second magnetic member 72a is also fixed on the second magnetic conductive member 74a. The second magnetic member 72a and the second magnetic conductive member 74a are both located on the side of the first voice coil 6a away from the first magnetic member 71a, and the second magnetic member 72a is located between the second magnetic conductive member 74a and the first voice coil 6a. The first voice coil 6a also faces the second magnetic member 72a. When the first voice coil 6a is energized, the first voice coil 6a generates a second Ampere force under the magnetic field of the second magnetic member 72a, and under the action of the second Ampere force, the first crossbar 2 can be driven to move along the X-axis direction (including the positive and negative directions of the X-axis). It can be understood that the second magnetic conductive member 74a can be used to increase the magnetic field strength of the first magnetic member 71a. The second magnetic conductive member 74a can also be used to cover the second magnetic member 72a and provide a fixed position for the second magnetic member 72a.

[0291] It is understandable that the first Ampere force and the second Ampere force on the first voice coil 6a can be in the same direction by designing the structure of the first magnetic member 71a and the second magnetic member 72a, and designing the position of the first magnetic member 71a and the second magnetic member 72a on the first frame 1a. In this way, under the action of the first Ampere force and the second Ampere force, the first voice coil 6a can drive the first crossbar 2 to move in the same direction. In addition, the current direction of the first voice coil 6a can be changed to simultaneously change the direction of the first Ampere force and the second Ampere force, so that the first voice coil 6a can drive the first crossbar 2 to move in the positive direction of the X-axis or the negative direction of the X-axis. For example, when the current direction of the first voice coil 6a is clockwise, the first voice coil 6a can drive the first crossbar 2 to move in the positive direction of the X-axis under the action of the first Ampere force and the second Ampere force. When the current direction of the first voice coil 6a is counterclockwise, the first voice coil 6a can drive the first crossbar 2 to move in the negative direction of the X-axis under the action of the first Ampere force and the second Ampere force.

[0292] It is understandable that the first voice coil 6a of this embodiment uses two magnetic parts (the first magnetic part 71a and the second magnetic part 72a) to cooperate with each other, so that the first crossbar 2 can obtain the driving force of two Ampere forces (the first Ampere force and the second Ampere force). In this way, the first crossbar 2 can obtain a larger stroke in the X-axis direction.

[0293] It is understandable that there are multiple ways to set the structure of the first magnetic member 71a and the second magnetic member 72a. As long as the directions of the first Ampere force and the second Ampere force can be the same, the structures of the first magnetic member 71a and the second magnetic member 72a are within the protection scope of the present application. The following introduces a specific structure of the first magnetic member 71a and the second magnetic member 72a. More structures of the first magnetic member 71a and the second magnetic member 72a. The following will be specifically introduced in conjunction with the relevant drawings. No further details will be given here.

[0294] Fig.19 yes Figure 3 A schematic structural diagram of an implementation of a first voice coil 6a, a first magnetic component 71a and a second magnetic component 72a is shown. Fig. 20 yes Figure 3 A schematic structural diagram of an implementation manner of the first voice coil 6a and the first magnetic circuit system 7a is shown.

[0295] like Fig.19 and Fig. 20 As shown, the first magnetic member 71a is a Halbach magnet array. For example, the first magnetic member 71a includes a first magnet 711a, a second magnet 712a, a third magnet 713a, a fourth magnet 714a and a fifth magnet 715a. Among them, the third magnet 713a is located between the first magnet 711a and the second magnet 712a. The third magnet 713a, the first magnet 711a and the second magnet 712a are located between the fourth magnet 714a and the fifth magnet 715a, and the first magnet 711a is close to the fourth magnet 714a, and the second magnet 712a is close to the fifth magnet 715a. In other embodiments, when the first magnetic member 71a is a Halbach magnet structure, the first magnetic member 71a may also include more or less structures. For example, the first magnetic member 71a may also not include the third magnet 713a and / or the fourth magnet 714a and / or the fifth magnet 715a. The specific details are not repeated here.

[0296] Among them, the polarization directions of the first magnet 711a and the second magnet 712a are opposite and perpendicular to the arrangement direction of the five magnets. In addition, the polarization directions of the third magnet 713a, the fourth magnet 714a and the fifth magnet 715a are all parallel to the arrangement direction of the five magnets. The polarization direction of the third magnet 713a is opposite to the polarization direction of the fourth magnet 714a. The polarization direction of the fourth magnet 714a is the same as the polarization direction of the fifth magnet 715a. It can be understood that the polarization direction can be the direction from the North Pole (N) to the South Pole (S), or the direction from the South Pole (S) to the North Pole (N).

[0297] Exemplarily, the polarization direction of the third magnet 713a is the negative direction of the X axis. The polarization direction of the first magnet 711a is the negative direction of the Z axis. The polarization direction of the second magnet 712a is the positive direction of the Z axis. The polarization directions of the fourth magnet 714a and the fifth magnet 715a are both the positive direction of the X axis.

[0298] It is understandable that the second magnetic member 72a and the first magnetic member 71a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In the present embodiment, the first magnetic member 71a and the second magnetic member 72a are similar structures, and the second magnetic member 72a and the first magnetic member 71a are slightly different in the detailed structure of the components. Specifically, the second magnetic member 72a and the first magnetic member 71a have the same content that the second magnetic member 72a also includes five magnets, and the polarization direction of the second magnet 722a and the third magnet 723a of the second magnetic member 72a is the same as the polarization direction of the first magnet 711a and the second magnet 712a of the first magnetic member 71a. The second magnetic member 72a is different from the first magnetic member 71a in that the polarization direction of the first magnet 721a of the second magnetic member 72a is opposite to the polarization direction of the third magnet 713a of the first magnetic member 71a. The polarization direction of the fourth magnet 724a of the second magnetic member 72a is opposite to the polarization direction of the fourth magnet 714a of the first magnetic member 71a. The polarization direction of the fifth magnet 725a of the second magnetic member 72a is opposite to the polarization direction of the fifth magnet 715a of the first magnetic member 71a.

[0299] See also Fig.19 and Fig. 20 , and combined with Fig.18As shown, the first magnet 711a of the first magnetic member 71a can be arranged opposite to the first long strip segment 61a of the first voice coil 6a. The second magnet 712a of the first magnetic member 71a can be arranged opposite to the second long strip segment 62a of the first voice coil 6a. Since the polarization direction of the first magnet 711a of the first magnetic member 71a is the negative direction of the Z axis, and the polarization direction of the second magnet 712a of the first magnetic member 71a is the positive direction of the Z axis, the polarization directions of the first magnet 711a and the second magnet 712a of the first magnetic member 71a are both arranged perpendicular to the winding plane of the first voice coil 6a. In this way, when the first voice coil 6a is energized, the current direction of the first long strip segment 61a of the first voice coil 6a is opposite to the current direction of the second long strip segment 62a of the first voice coil 6a. The direction of the first Ampere force generated by the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a is the same. For example, the direction of the first Ampere force is the X axis direction.

[0300] See also Fig.19 and Fig. 20 , and combined with Fig.18 As shown, the first magnet 721a of the second magnetic member 72a is arranged opposite to the first long strip segment 61a of the first voice coil 6a. The second magnet 722a of the second magnetic member 72a is arranged opposite to the second long strip segment 62a of the first voice coil 6a. Since the polarization direction of the first magnet 721a of the second magnetic member 72a is also the negative direction of the Z axis, and the polarization direction of the second magnet 722a of the second magnetic member 72a is also the positive direction of the Z axis, the polarization directions of the first magnet 721a and the second magnet 722a of the second magnetic member 72a are both arranged perpendicular to the winding plane of the first voice coil 6a. In this way, when the first voice coil 6a is energized, the current direction of the first long strip segment 61a of the first voice coil 6a is opposite to the current direction of the second long strip segment 62a of the first voice coil 6a. The directions of the first Ampere force generated by the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a are the same. For example, the directions of the first Ampere force are both in the X-axis direction.

[0301] like Fig.17 and Fig.18 As shown, the second magnetic circuit system 7b also includes a first magnetic circuit component 70C and a second magnetic circuit component 70D. The first magnetic circuit component 70C can be fixed on the top surface of the second end 13a of the first frame 1a. The second magnetic circuit component 70D can be fixed on the bottom surface of the second end 13a of the first frame 1a. The first magnetic circuit component 70C and the second magnetic circuit component 70D are respectively located on both sides of the second voice coil 6b. When the second voice coil 6b is energized, the second voice coil 6b can generate an Ampere force under the magnetic field of the first magnetic circuit component 70C and the second magnetic circuit component 70D, and under the action of the Ampere force, the second crossbar 3 can be driven to move along the X-axis direction.

[0302] It is understandable that the second magnetic circuit system 7b and the first magnetic circuit system 7a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the second magnetic circuit system 7b and the first magnetic circuit system 7a are symmetrical structures, and the basic design of the component structure of the second magnetic circuit system 7b, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first magnetic circuit system 7a, and the second magnetic circuit system 7b and the first magnetic circuit system 7a are allowed to be slightly different in the detailed structure or position arrangement of the components.

[0303] Please refer again Fig.19 and Fig. 20 , the fourth magnet 714a and / or the fifth magnet 715a of the first magnetic member 71a are provided with a first avoidance gap 710a. The fifth magnet 715a is provided with a first avoidance gap 710a as an example for description. In this way, when the fifth magnet 715a of the first magnetic member 71a is provided with a first avoidance gap 710a, the height of the fifth magnet 715a of the first magnetic member 71a in the Z-axis direction is less than the height of the second magnet 712a of the first magnetic member 71a in the Z-axis direction.

[0304] Exemplarily, the fourth magnet 724a and / or the fifth magnet 725a of the second magnetic member 72a are provided with a second avoidance gap 720a. The fifth magnet 725a is provided with a second avoidance gap 720a as an example for description. In this way, when the fifth magnet 725a of the second magnetic member 72a is provided with a second avoidance gap 720a, the height of the fifth magnet 725a of the second magnetic member 72a in the Z-axis direction is less than the height of the second magnet 722a of the second magnetic member 72a in the Z-axis direction.

[0305] It can be understood that the magnet arrangement of the second magnetic circuit system 7b may be similar to or the same as the magnet arrangement of the first magnetic circuit system 7a.

[0306] Fig.21 yes Figure 3 The second frame 1b shown is a schematic structural diagram in one embodiment. Fig. 22 yes Figure 3 A partial structural schematic diagram of an embodiment of a sound-generating device 100 is shown.

[0307] like Fig.21 and Fig. 22 As shown, the second frame 1b may be ring-shaped. The second frame 1b surrounds a hollow area 11b. The second frame 1b is fixed on the top of the first frame 1a. The hollow area 11b of the second frame 1b is connected to the first hollow area 193a of the first frame 1a.

[0308] Fig.23 yes Figure 2The sound generating device 100 is shown in a cross-sectional view of an embodiment at line AA. Fig.24 yes Fig.23 The cross-sectional view of the sound-generating device 100 shown in FIG. Fig.24 Can be Fig.23 Schematic diagram of a 180° rotation around the X-axis.

[0309] like Fig.23 and Fig.24 As shown, the first diaphragm assembly 9a can be fixed on the top side of the second frame 1b. At this time, the first diaphragm assembly 9a can be fixed on the top side of the first frame 1a through the second frame 1b. The first diaphragm assembly 9a covers the hollow area 11b of the second frame 1b.

[0310] It is understandable that when the first cross bar 2 and the second cross bar 3 are arranged on the first frame 1a, the first frame 1a is an open area at the top of the first cross bar 2 and the second cross bar 3. Therefore, during the assembly process of the first cross bar 2 and the second cross bar 3 and the first frame 1a, the first cross bar 2, the second cross bar 3 and the first frame 1a are not easy to interfere with each other. In this way, the assembly difficulty of the first cross bar 2, the second cross bar 3 and the first frame 1a is relatively low.

[0311] In addition, in this embodiment, the second frame 1b is detachably connected to the top of the first frame 1a, and the second frame 1b is ring-shaped. Therefore, when the first diaphragm assembly 9a is fixed on the second frame 1b, each position of the periphery of the first diaphragm assembly 9a is supported by the second frame 1b, thereby ensuring that the first diaphragm assembly 9a can be stably and firmly connected to the first frame 1a through the second frame 1b.

[0312] It can be understood that, in this embodiment, the basin frame 1 is configured to consist of two parts (the first frame 1a and the second frame 1b), thereby ensuring that during the assembly process of the first cross bar 2 and the second cross bar 3 with the first frame 1a, the first cross bar 2, the second cross bar 3 and the first frame 1a are not easy to interfere with each other, and can also ensure that the first diaphragm assembly 9a can be stably and firmly connected to the first frame 1a through the second frame 1b.

[0313] like Fig.23 and Fig.24 As shown, the second diaphragm assembly 9b can be fixed on the bottom side of the first frame 1a. The second diaphragm assembly 9b covers the first hollow area 193a of the first frame 1a. The second diaphragm assembly 9b is arranged opposite to the first diaphragm assembly 9a. The second diaphragm assembly 9b, the first diaphragm assembly 9a and the basin frame 1 surround a rear cavity 9c. The first transmission member 4 and the second transmission member 5 can both be located in the rear cavity 9c.

[0314] For example, the periphery of the second diaphragm assembly 9b may be fixed to the first long side 121a of the middle portion 12a of the first frame 1a (see Figure 5 ), the second long side 122a (see Figure 5 ), the first short side 123a (see Figure 5 ) and the second short side 124a (see Figure 5 In this way, the first long side 121a, the second long side 122a, the first short side 123a and the second short side 124a can support the periphery of the second diaphragm assembly 9b from different directions, thereby ensuring that the second diaphragm assembly 9b can be stably and firmly connected to the first frame 1a.

[0315] like Fig.23 and Fig.24 As shown, the middle portion 42 of the first transmission member 4 protrudes toward the first diaphragm assembly 9a relative to the two ends of the first transmission member 4 and is connected to the first diaphragm assembly 9a. Exemplarily, the second plate 442 of the middle portion 42 of the first transmission member 4 can be fixed to the first diaphragm assembly 9a by an adhesive layer.

[0316] like Fig.23 and Fig.24 As shown, the middle portion 52 of the second transmission member 5 is recessed toward the second diaphragm assembly 9b relative to both ends of the second transmission member 5, and is connected to the second diaphragm assembly 9b. For example, the second plate 542 of the middle portion 52 of the second transmission member 5 can be fixed to the second diaphragm assembly 9b by an adhesive layer.

[0317] Exemplarily, the distance between the first end 41 of the first transmission member 4 and the first diaphragm assembly 9a is in the range of 0.3mm to 3mm. Exemplarily, the distance between the second end 43 of the first transmission member 4 and the first diaphragm assembly 9a is in the range of 0.3mm to 3mm. Exemplarily, the distance between the first end 51 of the second transmission member 5 and the second diaphragm assembly 9b is in the range of 0.3mm to 3mm. Exemplarily, the distance between the second end 53 of the second transmission member 5 and the second diaphragm assembly 9b is in the range of 0.3mm to 3mm.

[0318] The structure of the sound generating device 100 is described in detail above in conjunction with the related drawings. The sound generating principle of the sound generating device 100 is described in detail below in conjunction with the related drawings.

[0319] First, the sound generation principle of the first diaphragm assembly 9a is introduced with reference to the relevant drawings.

[0320] See also Fig.23 and Fig.24 , and combined with Fig.18As shown, when the first signal is transmitted to the first voice coil 6a, the first voice coil 6a generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the first magnetic circuit system 7a, and under the action of the Ampere force, the first crossbar 2 can be driven to move along the positive direction of the X-axis. When the first crossbar 2 applies a first force along the positive direction of the X-axis to the first end 41 of the first transmission member 4, the first end 41 of the first transmission member 4 can move along the positive direction of the X-axis, and the first end 41 of the first transmission member 4 can squeeze the second plate 442 through the first plate 441. It can be understood that the first plate 441 can change the direction of the first force, so that the second plate 442 can be subjected to a force along the positive direction of the Z-axis. In addition, when the second signal is transmitted to the second voice coil 6b, the second voice coil 6b generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the second magnetic circuit system 7b, and under the action of the Ampere force, the second crossbar 3 can be driven to move along the negative direction of the X-axis. When the second cross bar 3 applies the second force along the negative direction of the X-axis to the second end 43 of the first transmission member 4, the second end 43 of the first transmission member 4 can move along the negative direction of the X-axis, and the second end 43 of the first transmission member 4 can squeeze the second plate 442 through the third plate 443. It can be understood that the third plate 443 can change the direction of the second force, so that the second plate 442 can be subjected to the force along the positive direction of the Z-axis. Since the second plate 442 is fixed on the first diaphragm assembly 9a, the second plate 442 can push the first diaphragm assembly 9a to move along the positive direction of the Z-axis under the action of two forces along the positive direction of the Z-axis.

[0321] See also Fig.23 and Fig.24 , and combined with Fig.18As shown, when the third signal is transmitted to the first voice coil 6a, the first voice coil 6a generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the first magnetic circuit system 7a, and can drive the first crossbar 2 to move along the negative direction of the X-axis under the action of the Ampere force. When the first crossbar 2 applies a third force along the negative direction of the X-axis to the first end 41 of the first transmission member 4, the first end 41 of the first transmission member 4 can move along the negative direction of the X-axis, and the first end 41 of the first transmission member 4 can pull the second plate 442 through the first plate 441. It can be understood that the first plate 441 can change the direction of the third force, so that the second plate 442 can be subjected to a force along the negative direction of the Z-axis. In addition, when the fourth signal is transmitted to the second voice coil 6b, the second voice coil 6b generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the second magnetic circuit system 7b, and can drive the second crossbar 3 to move along the positive direction of the X-axis under the action of the Ampere force. When the second cross bar 3 applies the fourth force along the positive direction of the X-axis to the second end 43 of the first transmission member 4, the second end 43 of the first transmission member 4 can move along the positive direction of the X-axis, and the second end 43 of the first transmission member 4 can pull the second plate 442 through the third plate 443. It can be understood that the third plate 443 can change the direction of the fourth force, so that the second plate 442 can be subjected to a force along the negative direction of the Z-axis. Since the second plate 442 is fixed on the first diaphragm assembly 9a, the second plate 442 can pull the first diaphragm assembly 9a to move along the negative direction of the Z-axis under the action of two forces along the negative direction of the Z-axis.

[0322] It can be understood that when the first signal and the third signal are periodically transmitted to the first voice coil 6a, and the second signal and the fourth signal are periodically transmitted to the second voice coil 6b, the first cross bar 2 and the second cross bar 3 can drive the first diaphragm assembly 9a to vibrate periodically along the positive direction of the Z axis and the negative direction of the Z axis through the first transmission member 4. In this way, the first diaphragm assembly 9a can generate sound by squeezing air.

[0323] The sound generation principle of the second diaphragm assembly 9b is described in detail below in conjunction with the relevant drawings.

[0324] See also Fig.23 and Fig.24 , and combined with Fig.18As shown, when the first signal is transmitted to the first voice coil 6a, the first voice coil 6a generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the first magnetic circuit system 7a, and under the action of the Ampere force, the first crossbar 2 can be driven to move along the positive direction of the X-axis. When the first crossbar 2 applies a fifth force along the positive direction of the X-axis to the first end 51 of the second transmission member 5, the first end 51 of the second transmission member 5 can move along the positive direction of the X-axis, and the first end 51 of the second transmission member 5 can squeeze the second plate 542 through the first plate 541. It can be understood that the first plate 541 can change the direction of the fifth force, so that the second plate 542 can be subjected to a force along the positive direction of the Z-axis. In addition, when the second signal is transmitted to the second voice coil 6b, the second voice coil 6b generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the second magnetic circuit system 7b, and under the action of the Ampere force, the second crossbar 3 can be driven to move along the negative direction of the X-axis. When the second cross bar 3 applies the sixth force along the negative direction of the X-axis to the second end 53 of the second transmission member 5, the second end 53 of the second transmission member 5 can move along the negative direction of the X-axis, and the second end 53 of the second transmission member 5 can squeeze the second plate 542 through the third plate 543. It can be understood that the third plate 543 can change the direction of the sixth force, so that the second plate 542 can be subjected to a force along the positive direction of the Z-axis. Since the second plate 542 is fixed on the second diaphragm assembly 9b, the second plate 542 can push the second diaphragm assembly 9b to move along the positive direction of the Z-axis under the action of two forces along the positive direction of the Z-axis.

[0325] See also Fig.23 and Fig.24 , and combined with Fig.18As shown, when the third signal is transmitted to the first voice coil 6a, the first voice coil 6a generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the first magnetic circuit system 7a, and can drive the first crossbar 2 to move along the negative direction of the X axis under the action of the Ampere force. When the first crossbar 2 applies the seventh force along the negative direction of the X axis to the first end 51 of the second transmission member 5, the first end 51 of the second transmission member 5 can move along the negative direction of the X axis, and the first end 51 of the second transmission member 5 can pull the second plate 542 through the first plate 541. It can be understood that the first plate 541 can change the direction of the seventh force, so that the second plate 542 can be subjected to a force along the negative direction of the Z axis. In addition, when the fourth signal is transmitted to the second voice coil 6b, the second voice coil 6b generates an Ampere force under the magnetic field of the first magnetic member 71a and the second magnetic member 72a of the second magnetic circuit system 7b, and can drive the second crossbar 3 to move along the positive direction of the X axis under the action of the Ampere force. When the second cross bar 3 applies the eighth force along the positive direction of the X-axis to the second end 53 of the second transmission member 5, the second end 53 of the second transmission member 5 can move along the positive direction of the X-axis, and the second end 53 of the second transmission member 5 can pull the second plate 542 through the third plate 543. It can be understood that the third plate 543 can change the direction of the eighth force, so that the second plate 542 can be subjected to the force along the negative direction of the Z-axis. Since the second plate 542 is fixed on the second diaphragm assembly 9b, the second plate 542 can pull the second diaphragm assembly 9b to move along the negative direction of the Z-axis under the action of two forces along the negative direction of the Z-axis.

[0326] It can be understood that when the first crossbar 2 moves along the positive direction of the X-axis under the driving force generated by the first voice coil 6a and the first magnetic circuit system 7a, and the second crossbar 3 moves along the negative direction of the X-axis under the driving force generated by the second voice coil 6b and the second magnetic circuit system 7b, the first crossbar 2 and the second crossbar 3 approach each other. At this time, the first crossbar 2 and the second crossbar 3 drive the two ends of the first transmission member 4 to approach each other along the X-axis direction, and drive the two ends of the second transmission member 5 to approach each other along the X-axis direction. When the first crossbar 2 moves along the negative direction of the X-axis under the driving force generated by the first voice coil 6a and the first magnetic circuit system 7a, and the second crossbar 3 moves along the positive direction of the X-axis under the driving force generated by the second voice coil 6b and the second magnetic circuit system 7b, the first crossbar 2 and the second crossbar 3 move away from each other.

[0327] It can be understood that when the middle portion 42 of the first transmission member moves along the positive direction of the Z axis and the middle portion 52 of the second transmission member 5 moves along the negative direction of the Z axis, the middle portion 42 of the first transmission member and the middle portion 52 of the second transmission member 5 move away from each other. When the middle portion 42 of the first transmission member moves along the negative direction of the Z axis and the middle portion 52 of the second transmission member 5 moves along the positive direction of the Z axis, the middle portion 42 of the first transmission member and the middle portion 52 of the second transmission member 5 move closer to each other. At this time, the first crossbar 2 and the second crossbar 3 drive the two ends of the first transmission member 4 to move away from each other along the X axis direction, and drive the two ends of the second transmission member 5 to move away from each other along the X axis direction.

[0328] It can be understood that the first voice coil 6a, the first magnetic circuit system 7a, the second voice coil 6b and the second magnetic circuit system 7b are configured to drive the first crossbar 2 and the second crossbar 3 away from each other, and the first crossbar 2 and the second crossbar 3 drive the middle part 42 of the first transmission member 4 and the middle part 52 of the second transmission member 5 to approach each other. In addition, the first voice coil 6a, the first magnetic circuit system 7a, the second voice coil 6b and the second magnetic circuit system 7b are also configured to drive the first crossbar 2 and the second crossbar 3 to approach each other, and the first crossbar 2 and the second crossbar 3 drive the middle part 42 of the first transmission member 4 and the middle part 52 of the second transmission member 5 to move away from each other.

[0329] It can be understood that when the first signal and the third signal are periodically transmitted to the first voice coil 6a, and the second signal and the fourth signal are periodically transmitted to the second voice coil 6b, the first cross bar 2 and the second cross bar 3 can drive the second diaphragm assembly 9b to vibrate periodically along the positive direction of the Z axis and the negative direction of the Z axis through the second transmission member 5. In this way, the second diaphragm assembly 9b can generate sound by squeezing air.

[0330] It can be understood that in this embodiment, the first voice coil 6a and the second voice coil 6b are arranged to move along the X-axis direction, and the first transmission member 4 and the second transmission member 5 are used to convert the force in the X-axis direction into the force in the Z-axis direction, so that the first diaphragm assembly 9a and the second diaphragm assembly 9b can vibrate in the Z-axis direction. In this way, compared with the solution in which the first voice coil 6a and the second voice coil 6b move in the Z-axis direction, the sound-generating device 100 of this embodiment does not need to increase the size of the first voice coil 6a and the second voice coil 6b moving in the Z-axis direction. The size of the sound-generating device 100 in the Z-axis direction is small, which is conducive to realizing a thin design of the sound-generating device 100.

[0331] In addition, by fixing the first end 41 of the first transmission member 4 to the bottom surface of the second end 23 of the first crossbar 2, the second end 43 of the first transmission member 4 to the bottom surface of the second end 33 of the second crossbar 3, the first end 51 of the second transmission member 5 to the top surface of the second end 23 of the first crossbar 2, the second end 53 of the second transmission member 5 to the top surface of the second end 33 of the second crossbar 3, and the middle part 42 of the first transmission member 4 passes through the second avoidance hole 544 of the second transmission member 5, so that the first transmission member 4 and the second transmission member 5 can be roughly formed in the projection of the XZ plane. The vibration space of the first diaphragm assembly 9a along the Z-axis direction and the vibration space of the second diaphragm assembly 9b along the Z-axis direction have an overlapping area. In other words, the vibration space of the first diaphragm assembly 9a along the Z-axis direction and the vibration space of the second diaphragm assembly 9b along the Z-axis direction are reused. At this time, the size of the sound-generating device 100 in the Z-axis direction can be further reduced, which is more conducive to the thin design of the sound-generating device.

[0332] In addition, in this embodiment, the first diaphragm assembly 9a and the second diaphragm assembly 9b are driven simultaneously by the first cross bar 2 and the second cross bar 3, so that the first diaphragm assembly 9a and the second diaphragm assembly 9b can make sounds at the same time, and the loudness of the sound of the sound-generating device 100 is greater. In other words, the use of a dual diaphragm assembly in this embodiment can greatly improve the loudness of the sound-generating device 100.

[0333] Please refer again Fig.23 and Fig.24 , and combined with Fig.19 and Fig. 20 , by setting a first avoidance gap 710a on the fourth magnet 714a and / or the fifth magnet 715a of the first magnetic member 71a, when the first crossbar 2 moves relative to the first frame 1a, a movement space is provided to the first crossbar 2, that is, in the process of the first crossbar 2 moving along the X-axis direction, the first crossbar 2 is prevented from interfering with the fourth magnet 714a and / or the fifth magnet 715a of the first magnetic member 71a. Similarly, by setting a second avoidance gap 720a on the fourth magnet 724a and / or the fifth magnet 725a of the second magnetic member 72a, more movement space is provided to the first crossbar 2 when the first crossbar 2 moves relative to the first frame 1a, that is, in the process of the first crossbar 2 moving along the X-axis direction, the first crossbar 2 is prevented from interfering with the fourth magnet 724a and / or the fifth magnet 725a of the second magnetic member 72a.

[0334] Fig.25 yes Figure 3 A schematic exploded view of an embodiment of a first diaphragm assembly 9a is shown. Fig.26 yes Figure 3 The cross-sectional view of one embodiment of the first diaphragm assembly 9a is shown at line BB. Fig. 27 yes Figure 3 The structure diagram of the first diaphragm assembly 9a shown in another angle.

[0335] like Figure 25 to Figure 27 As shown, the first diaphragm assembly 9a includes a first dome 91a, a first fold ring 92a, a first reinforcement member 93a and a first rigid member 94a. The first dome 91a, the first fold ring 92a and the first rigid member 94a can constitute the first diaphragm 90a of the first diaphragm assembly 9a. In other embodiments, the first diaphragm 90a can also adopt other structures.

[0336] Exemplarily, the first fold ring 92a includes a first fixing portion 921a, a connecting portion 922a and a second fixing portion 923a. The connecting portion 922a is connected between the first fixing portion 921a and the second fixing portion 923a. The connecting portion 922a protrudes relative to the same side of the first fixing portion 921a and the second fixing portion 923a. In one embodiment, the first fixing portion 921a and the second fixing portion 923a can both be planar.

[0337] like Figure 25 to Figure 27 As shown, the first ball top 91a is fixed to the second fixing portion 923a of the first fold ring 92a and is located on the protruding side of the first fold ring 92a.

[0338] In addition, the first rigid member 94a is fixed on the first fixed portion 921a and is located on a side of the first fixed portion 921a away from the first spherical top 91a. For example, the material of the first rigid member 94a can be stainless steel, aluminum, etc. For example, the first rigid member 94a is ring-shaped.

[0339] In addition, the first reinforcing member 93a is fixed to the side of the second fixing portion 923a away from the first dome 91a. The first reinforcing member 93a can be a stainless steel sheet, an aluminum sheet, etc. It can be understood that the first reinforcing member 93a can improve the strength of the second fixing portion 923a of the first fold 92a, thereby preventing the second fixing portion 923a of the first fold 92a from being partially concave or convex during the vibration process, thereby preventing the first diaphragm assembly 9a from forming a new mode. In this way, the first diaphragm assembly 9a can vibrate in a piston mode (the second fixing portion 923a of the first fold 92a and the first dome 91a are relatively flat and not concave / convex), and the first diaphragm assembly 9a has a better sound pressure level. It can be understood that in this embodiment, by arranging the first reinforcing member 93a on the first diaphragm 90a, the strength of the first diaphragm 90a is greatly improved. In other embodiments, the strength of the first diaphragm 90a can also be improved in other ways. In one embodiment, the strength of the first diaphragm 90a can be improved by providing a structure of the first dome 91a. For example, the cross section of the first dome 91a can be provided in a square wave shape or a wave shape. For another example, multiple grooves can be stamped on the first dome 91a or bumps can be added. Of course, while other methods are used to improve the strength of the first diaphragm 90a, the first reinforcing member 93a can also be provided to better improve the strength of the first diaphragm 90a.

[0340] Fig.28 yes Figure 3 The sound generating device 100 shown is a cross-sectional view of another embodiment.

[0341] See also Fig.28 , and combined with Figure 25 to Figure 27 As shown, the first rigid member 94a is fixed on the second frame 1b, that is, the first dome 91a and the first fold ring 92a are fixed on the second frame 1b through the first rigid member 94a. The first rigid member 94a can improve the structural strength of the first fixing portion 921a of the first fold ring 92a. In this way, it can be avoided that the first fixing portion 921a of the first fold ring 92a is not easy to be fixed on the second frame 1b due to its low structural strength, that is, the installation process of the first fold ring 92a and the second frame 1b is reduced.

[0342] It can be understood that the first ball top 91a can be fixed on the side of the second fixing portion 923a of the first fold ring 92a away from the rear cavity 9c. The second plate 442 of the middle portion 42 of the first transmission member 4 can be fixed on the side of the second fixing portion 923a away from the first ball top 91a, that is, the side facing the rear cavity 9c. The first reinforcement member 93a can be fixed on the side of the second fixing portion 923a facing the rear cavity 9c. In addition, the first reinforcement member 93a is spaced apart from the middle portion 42 of the first transmission member 4. In other embodiments, the first reinforcement member 93a can also be fixed on the middle portion 42 of the first transmission member 4.

[0343] like Fig.25 and Fig. 27 As shown, illustratively, the first reinforcing member 93a includes a first long side portion 934a, a first short side portion 935a, and a second short side portion 936a. One end of the first long side portion 934a of the first reinforcing member 93a is connected to the first short side portion 935a of the first reinforcing member 93a, and the other end is connected to the second short side portion 936a of the first reinforcing member 93a. In one embodiment, the length extension direction of the first long side portion 934a of the first reinforcing member 93a can be parallel to the X-axis direction. The length extension directions of the first short side portion 935a and the second short side portion 936a of the first reinforcing member 93a can both be parallel to the Y-axis direction, that is, perpendicular to the X-axis direction.

[0344] Exemplarily, the first transmission member 4 has one second plate member 442 and the first reinforcing member 93a has two first long side portions 934a. At this time, the first transmission member 4 is substantially annular.

[0345] See also Fig.28 , and combined with Figure 25 to Figure 27 As shown, the length extension direction of the first long side portion 934a of the first reinforcing member 93a may be parallel to the length extension direction of the second plate member 442 of the first transmission member 4. The length extension directions of the first short side portion 935a and the second short side portion 936a of the first reinforcing member 93a are both perpendicular to the length extension direction of the second plate member 442 of the first transmission member 4. The first long side portion 934a of the first reinforcing member 93a and the second plate member 442 of the first transmission member 4 are arranged at intervals along the width direction of the second plate member 442 of the first transmission member 4.

[0346] Exemplarily, the first long side portions 934 a , the first short side portions 935 a , and the second short side portions 936 a of the two first reinforcing members 93 a are arranged around the second plate member 442 of the first transmission member 4 .

[0347] like Fig.25 and Fig. 27As shown, exemplarily, the first reinforcing member 93a includes a first bending portion 931a, a main body portion 932a and a second bending portion 933a. In one embodiment, the first bending portion 931a and the second bending portion 933a are a part of the first long side portion 934a of the first reinforcing member 93a. The main body portion 932a of the first reinforcing member 93a is another part of the first long side portion 934a of the first reinforcing member 93a, the first short side portion 935a and the second short side portion 936a.

[0348] In addition, the first bending portion 931a and the second bending portion 933a are respectively connected to the two sides of the main body 932a. The first bending portion 931a and the second bending portion 933a are bent relative to the main body 932a along the side of the second fixing portion 923a away from the first fold ring 92a. The cross-section of the first reinforcement 93a is roughly U-shaped. In this way, the overall structural strength of the first reinforcement 93a is greater, that is, the first reinforcement 93a is not easy to bend. In this way, the first reinforcement 93a can greatly improve the structural strength of the first diaphragm assembly 9a. In other embodiments, the shape of the cross-section of the first reinforcement 93a can also adopt other shapes, for example, the cross-section of the first reinforcement 93a is rectangular, wavy or square wave-shaped, etc. Specifically, the present application is not limited.

[0349] Exemplarily, the length extension direction of the first bending portion 931a and the second bending portion 933a is parallel to the X-axis direction.

[0350] See also Fig.28 , and combined with Figure 25 to Figure 27 As shown, the main body 932a of the first reinforcing member 93a can be arranged around the second plate member 442 of the middle portion 42 of the first transmission member 4.

[0351] Exemplarily, the length extension direction of the first bend 931a and the second bend 933a of the first reinforcing member 93a is parallel to the length extension direction of the second plate 442 of the first transmission member 4. In this way, the first folding ring 92a is not easily concave or convex due to the force in the X-axis direction during vibration, thereby preventing the first diaphragm assembly 9a from forming a new mode. In this way, the first diaphragm assembly 9a can vibrate in a piston mode (the second fixing portion 923a of the first folding ring 92a and the first dome 91a are relatively flat and not concave / convex), and the first diaphragm assembly 9a has a better sound pressure level.

[0352] In other embodiments, the first diaphragm assembly 9a may also include more or fewer components. For example, when the first diaphragm assembly 9a also includes more components, the first diaphragm assembly 9a may also include one or more transition film layers. The transition film layer may be connected between the first dome 91a and the first fold ring 92a. And / or, the transition film layer may be connected between the first reinforcement 93a and the first fold ring 92a. It is understandable that the transition film layer can make the first dome 91a and the first fold ring 92a more tightly bonded, that is, the bonding force is better, and / or, the first reinforcement 93a and the first fold ring 92a are more tightly bonded, that is, the bonding force is better. For another example, when the first diaphragm assembly 9a includes fewer components, the first diaphragm assembly 9a may not include the first reinforcement 93a and / or the first rigid member 94a.

[0353] It is understandable that the first diaphragm assembly 9a may also adopt other structures. As long as the diaphragm assembly can vibrate under the impetus of the driving force and produce sound, it is within the protection scope of this application.

[0354] Fig.29 yes Figure 3 A schematic exploded view of an embodiment of a second diaphragm assembly 9b is shown. Fig.30 yes Figure 3 The structure diagram of the second diaphragm assembly 9b shown is shown at another angle.

[0355] like Figure 29 to Figure 30 As shown, the second diaphragm assembly 9b includes a second dome 91b, a second fold ring 92b, a second reinforcing member 93b and a second rigid member 94b. The second dome 91b, the second fold ring 92b and the second rigid member 94b can constitute a second diaphragm 90b of the second diaphragm assembly 9b. In other embodiments, the second diaphragm 90b can also adopt other structures.

[0356] It can be understood that the second spherical top 91b, the second folding ring 92b, and the second rigid part 94b of the second diaphragm assembly 9b can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure as the first spherical top 91a, the first folding ring 92a, and the first rigid part 94a of the first diaphragm assembly 9a. In the present embodiment, the second spherical top 91b, the second folding ring 92b, and the second rigid part 94b of the second diaphragm assembly 9b have the same structures as the first spherical top 91a, the first folding ring 92a, and the first rigid part 94a of the first diaphragm assembly 9a, respectively. The basic design of the component structure of the second spherical top 91b, the second folding ring 92b, and the second rigid part 94b of the second diaphragm assembly 9b, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant schemes of the first spherical top 91a, the first folding ring 92a, and the first rigid part 94a of the first diaphragm assembly 9a, respectively. At the same time, the second spherical top 91b, the second folding ring 92b, and the second rigid part 94b of the second diaphragm assembly 9b are allowed to be slightly different from the first spherical top 91a, the first folding ring 92a, and the first rigid part 94a of the first diaphragm assembly 9a in terms of the detailed structure or position arrangement of the components.

[0357] Fig.31 yes Figure 2 The cross-sectional view of another embodiment of the sound generating device 100 is shown at line AA.

[0358] See also Fig.31 , and combined with Fig.29 and Fig.30 As shown, the second rigid member 94b is fixed on the first frame 1a, that is, the second ball top 91b and the second fold ring 92b are fixed on the first frame 1a through the second rigid member 94b. The second rigid member 94b can improve the structural strength of the first fixing portion 921b of the second fold ring 92b. In this way, it can be avoided that the first fixing portion 921b of the second fold ring 92b is not easy to fix on the second frame 1b due to its low structural strength, that is, the installation process of the second fold ring 92b and the second frame 1b is reduced.

[0359] It can be understood that the second ball top 91b can be fixed on the side of the second fixing portion 923b of the second fold ring 92b away from the rear cavity 9c. The second plate 542 of the middle portion 52 of the second transmission member 5 can be fixed on the side of the second fixing portion 923b of the second fold ring 92b away from the second ball top 91b, that is, the side facing the rear cavity 9c. The second reinforcement member 93b can be fixed on the side of the second fixing portion 923a of the second fold ring 92b facing the rear cavity 9c. In addition, the second reinforcement member 93b is spaced apart from the middle portion 52 of the second transmission member 5. In other embodiments, the second reinforcement member 93b can also be fixed on the middle portion 52 of the second transmission member 5.

[0360] like Figure 29 to Figure 30 As shown, illustratively, the second reinforcing member 93b includes a second long side portion 934b. At this time, the second reinforcing member 93b may be in a strip shape. In one embodiment, the length extension direction of the second long side portion 934b of the second reinforcing member 93b may be parallel to the X-axis direction.

[0361] Exemplarily, the number of the second long side portion 934b is one.

[0362] See also Fig.31 , and combined with Fig.29 and Fig.30 As shown, the length extension direction of the second long side portion 934b of the second reinforcing member 93b can be parallel to the length extension direction of the second plate member 542 of the second transmission member 5. The second long side portion 934b of the second reinforcing member 93b and the second plate member 542 of the second transmission member 5 are arranged at intervals along the width direction of the second plate member 542 of the second transmission member 5.

[0363] Exemplarily, the second long side portion 934 b of the second reinforcing member 93 b is located between the two second plates 542 of the second transmission member 5 .

[0364] like Fig.28 and Fig.31 As shown, illustratively, the sum of the number of the second long side portions 934b of the first reinforcing member 93a and the second plate members 442 of the first transmission member 4 is equal to the sum of the number of the second long side portions 934b of the second reinforcing member 93b and the number of the second plate members 542 of the second transmission member 5. In this way, the connection mode of the first reinforcing member 93a, the first transmission member 4 and the first diaphragm assembly 9a and the connection mode of the second reinforcing member 93b, the second transmission member 5 and the second diaphragm assembly 9b are basically symmetrical, which is conducive to the vibration of the first diaphragm assembly 9a and the second diaphragm assembly 9b being roughly the same, thereby facilitating the improvement of the sound effect of the sound-generating device 100.

[0365] like Fig.29 and Fig.30 As shown, illustratively, the second reinforcing member 93b includes a main body portion 931b, a first bending portion 932b and a second bending portion 933b.

[0366] The first bending portion 932b and the second bending portion 933b are connected to the two sides of the main body 931b respectively. The first bending portion 932b and the second bending portion 933b are bent relative to the main body 931b along the side of the second fixing portion 923b away from the second folding ring 92b. In this way, the overall structural strength of the second reinforcement member 93b is greater, that is, the second reinforcement member 93b is not easy to bend. The second reinforcement member 93b can greatly improve the structural strength of the second diaphragm assembly 9b.

[0367] Exemplarily, the length extension direction of the first bending portion 932b and the second bending portion 933b is parallel to the X-axis direction.

[0368] See also Fig.31 , and combined with Fig.29 and Fig.30 As shown, the first bend 932b and the second bend 933b of the second reinforcing member 93b are parallel to the length extension direction of the second plate 542 of the second transmission member 5. In this way, the second folding ring 92b is not easily concave or convex due to the force in the X-axis direction during the vibration process, thereby preventing the second diaphragm assembly 9b from forming a new mode. In this way, the first diaphragm assembly 9a can vibrate in a piston mode (the second fixing portion 923a of the first folding ring 92a and the first dome 91a are relatively flat and not concave / convex), and the first diaphragm assembly 9a has a better sound pressure level.

[0369] It is understandable that the present embodiment improves the strength of the second diaphragm 90b to a great extent by providing the second reinforcement member 93b on the second diaphragm 90b. In other embodiments, the strength of the second diaphragm 90b may also be improved by other means. In one embodiment, the strength of the second diaphragm 90b may be improved by providing the structure of the second dome 91b. For example, by setting the cross-sectional shape of the second dome 91b to a square waveform or a wavy shape. For another example, by stamping a plurality of grooves or adding bumps on the second dome 91b. Of course, while adopting other methods to improve the strength of the second diaphragm 90b, the first reinforcement member 93a may also be provided to better improve the strength of the second diaphragm 90b.

[0370] In other embodiments, the second diaphragm assembly 9b may also include more or fewer components. For example, when the second diaphragm assembly 9b includes more components, the second diaphragm assembly 9b may also include one or more transition film layers. The transition film layer may be connected between the second dome 91b and the second fold ring 92b. And / or, the transition film layer may be connected between the second reinforcement 93b and the second fold ring 92b. It is understandable that the transition film layer can make the second dome 91b and the second fold ring 92b more tightly bonded, that is, the bonding force is better, and / or, the second reinforcement 93b and the second fold ring 92b are more tightly bonded, that is, the bonding force is better. For another example, when the second diaphragm assembly 9b includes fewer components, the second diaphragm assembly 9b may not include the second reinforcement 93b and / or the second rigid member 94b.

[0371] It is understandable that the second diaphragm assembly 9b may also adopt other structures. As long as the diaphragm assembly can vibrate under the impetus of the driving force and produce sound, it is within the protection scope of this application.

[0372] The above text specifically introduces the structure of the sound-generating device 100 in combination with the relevant drawings. The following text specifically introduces several other structures of the sound-generating device 100 in combination with the relevant drawings.

[0373] The following will further describe several structures of the first transmission member 4 and the second transmission member 5 in detail with reference to the relevant drawings. Figure 8 and Fig. 9 The technical contents of the first transmission member 4 and the second transmission member 5 of the illustrated embodiment having the same structures are not repeated here.

[0374] Fig.32 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member 4 and the second transmission member 5 is shown. Fig.33 yes Figure 2 A partial structural schematic diagram of another embodiment of the sound-generating device 100 is shown.

[0375] like Fig.32 and Fig.33 As shown, the middle portion 42 of the first transmission member 4 includes a first connecting member 44. The specific structure of the first connecting member 44 is the same as that of the above Figure 8 and Fig. 9 The structure of the first connecting member 44 of the illustrated embodiment is the same, and the details will not be repeated here.

[0376] In addition, the middle portion 52 of the second transmission member 5 includes a second connecting member 54. The specific structure of the second connecting member 54 is the same as that of the above Figure 8 and Fig. 9 The structure of the second connecting member 54 in the illustrated embodiment is the same, and the details will not be repeated here.

[0377] like Fig.32 and Fig.33 As shown, when the first end 41 of the first transmission member 4 is fixed to the bottom surface of the second end 23 of the first crossbar 2, the second end 43 of the first transmission member 4 is fixed to the bottom surface of the second end 33 of the second crossbar 3, the first end 51 of the second transmission member 5 is fixed to the top surface of the second end 23 of the first crossbar 2, and the second end 53 of the second transmission member 5 is fixed to the top surface of the second end 33 of the second crossbar 3, the first transmission member 4 and the second transmission member 5 are arranged at intervals along the Y-axis direction, that is, the first transmission member 4 and the second transmission member 5 are not in contact. The projection of the first transmission member 4 and the second transmission member 5 in the XZ plane can roughly form a cross arrangement.

[0378] Fig.34 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member 4 and the second transmission member 5 is shown.

[0379] like Fig.34As shown, the middle portion 42 of the first transmission member 4 includes a plurality of first connecting members 44. The specific structure of the first connecting members 44 is similar to that described above. Figure 8 and Fig. 9 The structures of the first connecting members 44 of the illustrated embodiments are the same. The details are not repeated here. In addition, the present embodiment is described by taking the number of the first connecting members 44 as two as an example.

[0380] It can be understood that the first plate member 441 of each first connecting member 44 is connected to the first end 41 of the first transmission member 4. The third plate member 443 of each first connecting member 44 is connected to the second end 43 of the first transmission member 4. Two adjacent first connecting members 44 can be arranged at intervals. The space between the two first connecting members 44 forms a first avoidance hole 444.

[0381] like Fig.34 As shown, the middle portion 52 of the second transmission member 5 includes a second connecting member 54. The specific structure of the second connecting member 54 is the same as that described above. Figure 8 and Fig. 9 The structure of the second connecting member 54 in the illustrated embodiment is the same, and the details will not be repeated here.

[0382] It can be understood that the connection mode of the first transmission member 4 with the first cross bar 2 and the second cross bar 3 can refer to the connection mode of the first transmission member 4 with the first cross bar 2 and the second cross bar 3 in the above embodiments. In addition, the connection mode of the second transmission member 5 with the first cross bar 2 and the second cross bar 3 can refer to the connection mode of the second transmission member 5 with the first cross bar 2 and the second cross bar 3 in the above embodiments. Among them, the connection mode of the second transmission member 5 with the first cross bar 2 and the second cross bar 3 is slightly different from the above embodiments in that the middle part 52 of the second transmission member 5 can pass through the first avoidance hole 444 of the first transmission member 4. The details are not repeated here.

[0383] Fig.35 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member 4 and the second transmission member 5 is shown.

[0384] like Fig.35 As shown, the middle portion 42 of the first transmission member 4 includes a plurality of first connecting members 44. The specific structure of the first connecting members 44 is similar to that described above. Figure 8 and Fig. 9 The structures of the first connecting members 44 of the illustrated embodiments are the same. The details are not repeated here. In addition, the present embodiment is described by taking the number of the first connecting members 44 as two as an example.

[0385] It can be understood that the first plate member 441 of each first connecting member 44 is connected to the first end 41 of the first transmission member 4. The third plate member 443 of each first connecting member 44 is connected to the second end 43 of the first transmission member 4. Two adjacent first connecting members 44 can be arranged at intervals. The space between the two first connecting members 44 forms a first avoidance hole 444.

[0386] like Fig.35 As shown, the middle portion 52 of the second transmission member 5 includes a plurality of second connecting members 54. The specific structure of the second connecting members 54 is the same as that described above. Figure 8 and Fig. 9 The structures of the second connecting members 54 of the illustrated embodiment are the same. The details are not repeated here. In addition, the present embodiment is described by taking the number of the second connecting members 54 as three as an example.

[0387] It can be understood that the first plate 541 of each second connecting member 54 is connected to the first end 51 of the second transmission member 5. The third plate 543 of each second connecting member 54 is connected to the second end 53 of the second transmission member 5. Two adjacent second connecting members 54 can be arranged at intervals. The space between the two second connecting members 54 forms a second avoidance hole 544. In this embodiment, the second transmission member 5 has two second avoidance holes 544.

[0388] It is understood that the connection mode between the first transmission member 4 and the first crossbar 2 and the second crossbar 3 can refer to the connection mode between the first transmission member 4 and the first crossbar 2 and the second crossbar 3 in each embodiment above. In addition, the connection mode between the second transmission member 5 and the first crossbar 2 and the second crossbar 3 can refer to the connection mode between the second transmission member 5 and the first crossbar 2 and the second crossbar 3 in each embodiment above. Among them, the connection mode between the second transmission member 5 and the first crossbar 2 and the second crossbar 3 is slightly different from the above embodiments in that the first first connecting member 44 of the first transmission member 4 passes through the first second avoidance hole 544 of the second transmission member 5, and the second first connecting member 44 passes through the second second avoidance hole 544 of the second transmission member 5. In addition, the second second connecting member 54 passes through the first avoidance hole 444 of the first transmission member 4. It is understood that the projection of the first transmission member 4 and the second transmission member 5 in the XZ plane can roughly form a cross setting. The specific details are not repeated here.

[0389] It can be understood that, when the number of the first connecting members 44 of the first transmission member 4 is greater, two adjacent first connecting members 44 can form a first avoidance hole 444. One first avoidance hole 444 allows the second connecting member 54 of the second transmission member 5 to pass through. Similarly, when the number of the second connecting members 54 of the second transmission member 5 is greater, two adjacent second connecting members 54 can form a second avoidance hole 544. One second avoidance hole 544 allows the first connecting member 44 of the first transmission member 4 to pass through. The details are not repeated here.

[0390] Fig.36 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member 4 and the second transmission member 5 is shown.

[0391] like Fig.36 As shown, the middle portion 42 of the first transmission member 4 further includes a first fixing member 48a. The number of the first fixing member 48a can be one or more. The following description is firstly based on the example that the number of the first fixing member 48a is one.

[0392] Exemplarily, the first fixing member 48a includes a first end portion 481a, a middle portion 482a, and a second end portion 483a connected in sequence. The connection between the first end portion 481a of the first fixing member 48a and the middle portion 482a of the first fixing member 48a is a first sub-bending portion. The connection between the middle portion 482a of the first fixing member 48a and the second end portion 483a of the first fixing member 48a is a second sub-bending portion.

[0393] Exemplarily, the first end 481a of the first fixing member 48a and the second end 483a of the first fixing member 48a are bent toward both sides of the middle portion 482a of the first fixing member 48a, respectively. In other words, the first end 481a of the first fixing member 48a and the second end 483a of the first fixing member 48a are bent toward different sides of the middle portion 482a of the first fixing member 48a, respectively. In other embodiments, the first end 481a of the first fixing member 48a and the second end 483a of the first fixing member 48a may also be bent toward the same side of the middle portion 482a of the first fixing member 48a.

[0394] like Fig.36 As shown, the first end 481a of the first fixing member 48a is fixed to the first plate 441 of the first connecting member 44 of the first transmission member 4. The second end 483a of the first fixing member 48a is fixed to the second frame 1b. In other embodiments, the first end 481a of the first fixing member 48a can also be fixed to the second plate 442 of the first connecting member 44 of the first transmission member 4. In other embodiments, the second end 483a of the first fixing member 48a can also be directly fixed to the first frame 1a (see Fig.31 ).

[0395] It can be understood that when the first force along the positive direction of the X-axis is applied to the first end 41 of the first transmission member 4, the first end 41 of the first transmission member 4 can move along the positive direction of the X-axis, and the first end 41 of the first transmission member 4 can squeeze the second plate 442 through the first plate 441 of the first transmission member 4. The first plate 441 of the first transmission member 4 can change the direction of the first force, so that the second plate 442 of the first transmission member 4 can be subjected to a force along the positive direction of the Z-axis, and the second plate 442 pulls the first diaphragm assembly 9a to move along the positive direction of the Z-axis. At the same time, the second plate 442 of the first transmission member 4 will also be subjected to a certain force along the positive direction of the X-axis. It can be understood that while the first end 41 of the first transmission member 4 squeezes the second plate 442 of the first transmission member 4 through the first plate 441 of the first transmission member 4, the first fixing member 48a will also squeeze the second plate 442 of the first transmission member 4 through the first plate 441 of the first transmission member 4, so that the second plate 442 of the first transmission member 4 is also subjected to a force along the negative direction of the X-axis. In this way, the forces on the second plate 442 of the first transmission member 4 in the X-axis direction can mostly offset each other. The angle between the first end 481a of the first fixing member 48a and the middle 482a of the first fixing member 48a is reduced. The angle between the middle 482a of the first fixing member 48a and the second end 483a of the first fixing member 48a is also reduced.

[0396] It can be understood that when the third force along the negative direction of the X-axis is applied to the first end 41 of the first transmission member 4, the first end 41 of the first transmission member 4 can move along the negative direction of the X-axis, and the first end 41 of the first transmission member 4 can squeeze the second plate 442 of the first transmission member 4 through the first plate 441 of the first transmission member 4. The first plate 441 of the first transmission member 4 can change the direction of the third force, so that the second plate 442 of the first transmission member 4 can be subjected to the force along the negative direction of the Z-axis. At the same time, the second plate 442 of the first transmission member 4 will also be subjected to the force along the negative direction of the X-axis. It can be understood that while the first end 41 of the first transmission member 4 squeezes the second plate 442 of the first transmission member 4 through the first plate 441 of the first transmission member 4, the first fixing member 48a will also squeeze the second plate 442 of the first transmission member 4 through the first plate 441 of the first transmission member 4, so that the second plate 442 of the first transmission member 4 is also subjected to the force along the positive direction of the X-axis. In this way, the forces on the second plate 442 of the first transmission member 4 in the X-axis direction can mostly offset each other. The angle between the first end 481a of the first fixing member 48a and the middle 482a of the first fixing member 48a increases. The angle f between the middle 482a of the first fixing member 48a and the second end 483a of the first fixing member 48a increases.

[0397] It can be understood that when most of the forces on the second plate 442 of the first transmission member 4 in the X-axis direction can offset each other, the second plate 442 of the first transmission member 4 is not easy to apply force along the X-axis direction to the first diaphragm assembly 9a. The first diaphragm assembly 9a is not easy to bend or deform. In this way, when the first diaphragm assembly 9a vibrates along the Z-axis direction, it is not easy to form a new mode. The first diaphragm assembly 9a can vibrate in a piston mode (the second fixing portion 923a of the first fold ring 92a and the first dome 91a are relatively flat and not concave / convex), and the first diaphragm assembly 9a has a better sound pressure level.

[0398] The specific structure of the first fixing member 48a for realizing the motion described above can refer to the specific structure of the first transmission member 4. For example, the first fixing member 48a can also adopt a solution of a flexible member of an integral structural member and a hard patch (see Fig.10 and Fig.11 The first fixing member 48a may also be a solution in which a plurality of hard members are matched with a plurality of flexible members, and the flexible member is formed between two hard members by injection molding (see Fig.12 The structure of the first transmission member 4 in the embodiment shown in the figure is not described in detail here. Of course, the specific structure of the first fixing member 48a is not limited to the several structures described above. As long as the first fixing member 48a can realize the movement described above, it is within the protection scope of this application.

[0399] In other embodiments, the middle portion 42 of the first transmission member 4 also includes a second fixing member (not shown). One end of the second fixing member is fixed to the third plate member 443 of the first connecting member 44 of the first transmission member 4. The other end of the second fixing member is fixed to the second frame 1b or the first frame 1a. It is understandable that the second fixing member and the first fixing member 48a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In this embodiment, the second fixing member has the same structure as the first fixing member 48a, and the basic design of the component structure of the second fixing member, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the first fixing member 48a, while allowing the second fixing member and the first fixing member 48a to be slightly different in the detailed structure or position arrangement of the components.

[0400] Fig.37 yes Figure 3 A schematic structural diagram of another embodiment of the first transmission member 4 is shown.

[0401] like Fig.37As shown, the first plate 441 of the first connecting member 44 of the first transmission member 4 includes a first end 4411 and a second end 4412. The first end 4411 of the first plate 441 of the first connecting member 44 is connected to the second plate 442 of the first connecting member 44. The second end 4412 of the first plate 441 of the first connecting member 44 is connected to the first end 41 of the first transmission member 4.

[0402] In the Y-axis direction, the width L1 of the first end 4411 of the first plate 441 of the first connecting member 44 is smaller than the width L2 of the second end 4412 of the first plate 441 of the first connecting member 44. In this way, the connection area between the first end 41 of the first transmission member 4 and the first plate 441 is larger than the connection area between the first plate 441 and the second plate 442. At this time, while ensuring that the first transmission member 4 and the second transmission member 5 do not interfere with each other during movement, the connection area between the first plate 441 of the first connecting member 44 and the first end 41 of the first transmission member 4 can be greatly increased, thereby preventing the first plate 441 of the first connecting member 44 from being deformed.

[0403] Exemplarily, in the direction from the first end 4411 of the first plate 441 of the first connector 44 toward the second end 4412 of the first plate 441 of the first connector 44, the width of the first end 4411 of the first plate 441 of the first connector 44 in the Y-axis direction gradually increases.

[0404] Similarly, the third plate member 443 of the first connecting member 44 is disposed in a similar or identical manner to the first plate member 441 of the first connecting member 44 .

[0405] Fig.38 yes Figure 3 A partial structural schematic diagram of another embodiment of the first transmission member 4 and the second transmission member 5 is shown.

[0406] like Fig.38 As shown, the first plate 541 of the second connecting member 54 of the second transmission member 5 is arranged in a similar or identical manner to the first plate 441 of the first connecting member 44 of the first transmission member 4. In other words, in the Y-axis direction, the width of the first end 5411 of the first plate 541 of the second connecting member 54 is smaller than the width of the second end 5412 of the first plate 541 of the second connecting member 54. In this way, while ensuring that the first transmission member 4 and the second transmission member 5 do not interfere with each other during movement, the connection area between the first plate 541 of the second connecting member 54 and the first end 51 of the second transmission member 5 can be greatly increased, thereby preventing the first plate 541 of the second connecting member 54 from being deformed.

[0407] Similarly, the third plate member 543 of the second connecting member 54 of the second transmission member 5 is arranged in a similar or identical manner to the first plate member 541 of the second connecting member 54 of the second transmission member 5 .

[0408] The following will introduce several magnetic circuit system settings in detail with reference to the relevant drawings. Figure 7 The technical contents having the same structure as the first magnetic circuit system 7a of the illustrated embodiment will not be described in detail.

[0409] Fig.39 yes Figure 3 FIG. 1 is a schematic structural diagram of another embodiment of the first voice coil 6a and the first magnetic circuit system 7a.

[0410] like Fig.39 As shown, the first magnetic member 71a includes a first magnet 711a and a second magnet 712a. The first magnet 711a and the second magnet 712a are arranged along the X-axis direction. The polarization direction of the first magnet 711a is opposite to the polarization direction of the second magnet 712a. The first magnet 711a and the second magnet 712a can be connected together or spaced apart (i.e., a gap is left between the first magnet 711a and the second magnet 712a).

[0411] Exemplarily, the polarization direction of the first magnet 711 a is the negative direction of the Z axis, and the polarization direction of the second magnet 712 a is the positive direction of the Z axis.

[0412] It is understandable that the structure of the second magnetic member 72a is the same as that of the first magnetic member 71a, and the details will not be repeated here.

[0413] like Fig.39 As shown, the first magnet 711a of the first magnetic member 71a can be arranged opposite to the first long strip segment 61a of the first voice coil 6a. The second magnet 712a of the first magnetic member 71a can be arranged opposite to the second long strip segment 62a of the first voice coil 6a. Since the polarization direction of the first magnet 711a is the negative direction of the Z axis, and the polarization direction of the second magnet 712a is the positive direction of the Z axis, the polarization directions of the first magnet 711a and the second magnet 712a are both arranged perpendicular to the winding plane of the first voice coil 6a. In this way, when the first voice coil 6a is energized, the current direction of the first long strip segment 61a of the first voice coil 6a is opposite to the current direction of the second long strip segment 62a of the first voice coil 6a. The directions of the first Ampere force generated by the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a are the same. For example, the direction of the first Ampere force is the X axis direction.

[0414] like Fig.39As shown, the first magnet 711a of the second magnetic member 72a can be arranged opposite to the first long strip segment 61a of the first voice coil 6a. The second magnet 712a of the second magnetic member 72a can be arranged opposite to the second long strip segment 62a of the first voice coil 6a. Since the polarization direction of the first magnet 711a of the second magnetic member 72a is also the negative direction of the Z axis, and the polarization direction of the second magnet 712a of the second magnetic member 72a is also the positive direction of the Z axis, the polarization directions of the first magnet 711a and the second magnet 712a of the second magnetic member 72a are both arranged perpendicular to the winding plane of the first voice coil 6a. In this way, when the first voice coil 6a is energized, the current direction of the first long strip segment 61a of the first voice coil 6a is opposite to the current direction of the second long strip segment 62a of the first voice coil 6a. The directions of the first Ampere force generated by the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a are the same. For example, the directions of the first Ampere force are both in the X-axis direction.

[0415] In other embodiments, the first magnetic member 71a is composed of a magnet. In this case, the first magnetic member 71a includes two parts with opposite polarization directions. The polarization directions of the two parts are opposite. Exemplarily, the polarization direction of the first magnetic part is the negative direction of the X axis. The polarization direction of the second magnetic part is the negative direction of the Z axis.

[0416] It is understandable that the first magnetic member 71a can be manufactured by using a bipolar magnetization process, so that one magnet has two polarization directions.

[0417] It is understandable that the structure of the second magnetic member 72a is the same as that of the first magnetic member 71a, and the details will not be repeated here.

[0418] In this embodiment, the positional relationship between the two parts of the first magnetic member 71a and the first voice coil 6a can refer to the positional relationship between the first magnetic member 71a, the second magnetic member 72a and the first voice coil 6a described above, which will not be described in detail here.

[0419] Fig.40 yes Figure 3 FIG. 1 is a schematic structural diagram of another embodiment of the first voice coil 6a and the first magnetic circuit system 7a.

[0420] like Fig.40 As shown, the first magnetic member 71a is a Halbach magnet structure. For example, the first magnetic member 71a includes a first magnet 711a, a second magnet 712a, a third magnet 713a, a sixth magnet 716a and a seventh magnet 717a. Among them, the third magnet 713a is located between the first magnet 711a and the second magnet 712a. The sixth magnet 716a is located on the side of the second magnet 712a away from the third magnet 713a. The seventh magnet 717a is located between the second magnet 712a and the sixth magnet 716a.

[0421] Among them, the polarization directions of the first magnet 711a, the second magnet 712a and the sixth magnet 716a are all perpendicular to the arrangement direction of the five magnets (i.e., the X-axis direction). In addition, the polarization directions of the third magnet 713a and the seventh magnet 717a are all parallel to the arrangement direction of the five magnets. The polarization direction of the first magnet 711a is the same as the polarization direction of the sixth magnet 716a. The polarization direction of the first magnet 711a is opposite to the polarization direction of the second magnet 712a. The polarization direction of the third magnet 713a is opposite to the polarization direction of the seventh magnet 717a.

[0422] Exemplarily, the polarization direction of the third magnet 713a is the positive direction of the X axis. The polarization direction of the first magnet 711a is the positive direction of the Z axis. The polarization direction of the second magnet 712a is the negative direction of the Z axis. The polarization direction of the seventh magnet 717a is the negative direction of the X axis. The polarization direction of the sixth magnet 716a is the positive direction of the Z axis.

[0423] It is understandable that the second magnetic member 72a and the first magnetic member 71a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In the present embodiment, the first magnetic member 71a and the second magnetic member 72a are similar structures, and the second magnetic member 72a and the first magnetic member 71a are slightly different in the detailed structure of the components. Specifically, the second magnetic member 72a and the first magnetic member 71a have the same content that the second magnetic member 72a also includes five magnets, and the polarization directions of the first magnet 721a, the second magnet 722a and the sixth magnet 726a of the second magnetic member 72a are respectively the same as the polarization directions of the first magnet 711a, the second magnet 712a and the sixth magnet 716a of the first magnetic member 71a. The second magnetic member 72a and the first magnetic member 71a are different in that the polarization direction of the third magnet 723a of the second magnetic member 72a is opposite to the polarization direction of the third magnet 713a of the first magnetic member 71a. The polarization direction of the seventh magnet 727a of the second magnetic member 72a is opposite to the polarization direction of the seventh magnet 717a of the first magnetic member 71a.

[0424] like Fig.40 As shown, the sound generating device 100 includes a first voice coil 6a and a third voice coil 6c. The first voice coil 6a and the third voice coil 6c are arranged along the X-axis direction. The first voice coil 6a and the third voice coil 6c are located between the first magnetic member 71a and the second magnetic member 72a.

[0425] Exemplarily, the first long segment 61a of the first voice coil 6a may be located between the first magnet 711a of the first magnetic member 71a and the first magnet 721a of the second magnetic member 72a. The second long segment 62a of the first voice coil 6a may be located between the second magnet 712a of the first magnetic member 71a and the second magnet 722a of the second magnetic member 72a. The first long segment 61c of the third voice coil 6c may be located between the second magnet 712a of the first magnetic member 71a and the second magnet 722a of the second magnetic member 72a. The second long segment 62c of the third voice coil 6c may be located between the sixth magnet 716a of the first magnetic member 71a and the sixth magnet 726a of the second magnetic member 72a. In this way, when the first voice coil 6a and the third voice coil 6c are powered on, the current direction of the first long strip segment 61a of the first voice coil 6a is opposite to the current direction of the second long strip segment 62a of the first voice coil 6a, and the current direction of the first long strip segment 61c of the third voice coil 6c is opposite to the current direction of the second long strip segment 62c of the third voice coil 6c. The direction of the Ampere force generated by the first voice coil 6a and the third voice coil 6c under the action of the first magnetic member 71a and the second magnetic member 72a is the same. It can be understood that the present embodiment adopts two voice coils (the first voice coil 6a and the third voice coil 6c) and two magnetic members (the first magnetic member 71a and the second magnetic member 72a) to cooperate with each other, so that the first crossbar 2 can obtain the driving force of two Ampere forces (the first Ampere force and the second Ampere force). In this way, the first crossbar 2 can obtain a larger stroke in the X-axis direction.

[0426] Fig.41 yes Figure 3 A schematic structural diagram of another embodiment of the first voice coil and the first magnetic circuit system is shown.

[0427] like Fig.41 As shown, the first magnetic circuit system 7a includes a first magnetic circuit component 70A and a second magnetic circuit component 70B.

[0428] Among them, the first magnetic circuit component 70A includes a first magnetic part 71a, a first magnetic conductive part 73a, a second magnetic part 75a, a second magnetic conductive part 77a and a third magnetic part 79a connected in sequence along the X-axis direction. In other words, the first magnetic conductive part 73a is connected between the first magnetic part 71a and the second magnetic part 75a. The second magnetic conductive part 77a is connected between the second magnetic part 75a and the third magnetic part 79a. Among them, the first magnetic part 71a, the second magnetic part 75a and the third magnetic part 79a of the first magnetic circuit component 70A can be magnets or other magnetic components. The first magnetic conductive part 73a and the second magnetic conductive part 77a of the first magnetic circuit component 70A are made of magnetic conductive materials, such as silicon steel sheets and alloys formed by various iron products and rare earth elements. Exemplarily, the first magnetic part 71a, the second magnetic part 75a and the third magnetic part 79a of the first magnetic circuit component 70A can all be magnets. In other embodiments, the first magnetic circuit assembly 70A may not include the first magnetic component 71 a and / or the third magnetic component 79 a.

[0429] Exemplarily, the polarization directions of the first magnetic component 71a, the second magnetic component 75a and the third magnetic component 79a of the first magnetic circuit assembly 70A are all parallel to the arrangement direction of the three magnetic components. Among them, the polarization direction of the second magnetic component 75a is opposite to the polarization direction of the first magnetic component 71a. The polarization direction of the third magnetic component 79a is the same as the polarization direction of the first magnetic component 71a.

[0430] Exemplarily, the polarization direction of the first magnetic component 71a of the first magnetic circuit assembly 70A and the polarization direction of the third magnetic component 79a of the first magnetic circuit assembly 70A are both in the negative direction of the X axis. The polarization direction of the second magnetic component 75a of the first magnetic circuit assembly 70A is in the positive direction of the X axis.

[0431] Wherein, the second magnetic circuit component 70B includes a first magnetic member 70a, a first magnetic conductive member 72a, a second magnetic member 74a, a second magnetic conductive member 76a and a third magnetic member 78a which are sequentially connected along the X-axis direction. In other words, the first magnetic conductive member 72a is connected between the first magnetic member 70a and the second magnetic member 74a. The second magnetic conductive member 76a is connected between the second magnetic member 74a and the third magnetic member 78a. Wherein, the first magnetic member 70a, the second magnetic member 74a and the third magnetic member 78a of the second magnetic circuit component 70B can be magnets or other magnetic components. The first magnetic conductive member 72a and the second magnetic conductive member 76a of the second magnetic circuit component 70B are made of magnetic conductive materials, such as silicon steel sheets and alloys formed by various iron products and rare earth elements. Exemplarily, the first magnetic member 70a, the second magnetic member 74a and the third magnetic member 78a of the second magnetic circuit component 70B can all be magnets. In other embodiments, the second magnetic circuit assembly 70B may not include the first magnetic component 70a and / or the third magnetic component 78a.

[0432] Exemplarily, the polarization directions of the first magnetic component 70a, the second magnetic component 74a and the third magnetic component 78a of the second magnetic circuit component 70B are all parallel to the arrangement direction of the three magnetic components. Among them, the polarization direction of the second magnetic component 74a is opposite to the polarization direction of the first magnetic component 70a. The polarization direction of the third magnetic component 78a is the same as the polarization direction of the first magnetic component 70a. In addition, the polarization direction of the first magnetic component 70a of the second magnetic circuit component 70B is opposite to the polarization direction of the first magnetic component 71a of the first magnetic circuit component 70A. The polarization direction of the second magnetic component 74a of the second magnetic circuit component 70B is opposite to the polarization direction of the second magnetic component 75a of the first magnetic circuit component 70A. The polarization direction of the third magnetic component 78a of the second magnetic circuit component 70B is opposite to the polarization direction of the third magnetic component 79a of the first magnetic circuit component 70A.

[0433] Exemplarily, the polarization direction of the first magnetic component 70a of the second magnetic circuit assembly 70B and the polarization direction of the third magnetic component 78a of the second magnetic circuit assembly 70B are both in the positive direction of the X axis. The polarization direction of the second magnetic component 74a of the second magnetic circuit assembly 70B is in the positive direction of the negative axis.

[0434] like Fig.41 As shown, the first voice coil 6a is located between the first magnetic circuit component 70A and the second magnetic circuit component 70B. In addition, the first long segment 61a of the first voice coil 6a can be located between the first magnetic conductive member 73a of the first magnetic circuit component 70A and the first magnetic conductive member 72a of the second magnetic circuit component 70B. In addition, the second long segment 62a of the first voice coil 6a can be located between the second magnetic conductive member 77a of the first magnetic circuit component 70A and the second magnetic conductive member 76a of the second magnetic circuit component 70B. In this way, the polarization directions of the first magnetic member 71a, the second magnetic member 75a and the third magnetic member 79a of the first magnetic circuit component 70A, and the polarization directions of the first magnetic member 70a, the second magnetic member 74a and the third magnetic member 78a of the second magnetic circuit component 70B are all arranged parallel to the winding plane of the first voice coil 6a. In this way, when the first voice coil 6a is energized, the current direction of the first long segment 61a of the first voice coil 6a is opposite to the current direction of the second long segment 62a of the first voice coil 6a. The Ampere force generated by the first voice coil 6a under the action of the first magnetic circuit component 70A and the second magnetic circuit component 70B has the same direction.

[0435] Fig.42 yes Figure 3 The structure diagram of the first elastic member 8a shown is another embodiment. Fig.43 yes Figure 2 The shown diagram is a partial structural diagram of the sound-generating device 100 in another embodiment.

[0436] like Fig.42 and Fig.43As shown, the first elastic member 8a is in a folded ring structure. Specifically, the middle portion 82a of the first elastic member 8a protrudes relative to the same side of the first end 81a and the second end 83a of the first elastic member 8a. Exemplarily, the middle portion 82a of the first elastic member 8a is in an arc shape.

[0437] For example, the number of the first elastic members 8a may be six, wherein the first, second and third first elastic members 8a are located on one side of the first crossbar 2, and the fourth, fifth and sixth first elastic members 8a are located on the other side of the first crossbar 2. In this way, the first elastic members 8a can stably connect the first frame 1a to the first crossbar 2.

[0438] It is understandable that the configuration of the second elastic member 8b and the configuration of the first elastic member 8a may be the same or similar in design, and the details will not be described in detail here.

[0439] Fig.44 yes Figure 3 The first elastic member 8a shown is a schematic structural diagram of another embodiment.

[0440] like Fig.44 As shown, the first elastic member 8a is formed by connecting a first sub-ring 85a and a second sub-ring 86a.

[0441] The first sub-ring 85a includes a first end 851a, a middle portion 852a and a second end 853a. The middle portion 852a of the first sub-ring 85a protrudes relative to the same side of the first end 851a and the second end 853a of the first sub-ring 85a. Exemplarily, the middle portion 852a of the first sub-ring 85a is arc-shaped.

[0442] The second sub-ring 86a includes a first end 861a, a middle portion 862a and a second end 863a. The middle portion 862a of the second sub-ring 86a protrudes relative to the same side of the first end 861a and the second end 863a of the second sub-ring 86a. Exemplarily, the middle portion 862a of the second sub-ring 86a is arc-shaped.

[0443] like Fig.44 As shown, the first end 851a of the first sub-ring 85a is fixedly connected to the first end 861a of the second sub-ring 86a. The first end 851a of the first sub-ring 85a and the first end 861a of the second sub-ring 86a constitute the first end 81a of the first elastic member 8a.

[0444] In addition, the second end 853a of the first sub-ring 85a is fixedly connected to the second end 863a of the second sub-ring 86a. The second end 853a of the first sub-ring 85a and the second end 863a of the second sub-ring 86a constitute the second end 83a of the first elastic member 8a.

[0445] In addition, the middle portion 852a of the first sub-ring 85a protrudes in a direction away from the middle portion 862a of the second sub-ring 86a. The middle portion 862a of the second sub-ring 86a protrudes in a direction away from the middle portion 852a of the first sub-ring 85a. The middle portion 852a of the first sub-ring 85a and the middle portion 862a of the second sub-ring 86a enclose a first space 84a. The middle portion 852a of the first sub-ring 85a and the middle portion 862a of the second sub-ring 86a constitute the middle portion 82a of the first elastic member 8a.

[0446] It is understandable that the first elastic member 8a of this embodiment is formed by connecting the first sub-ring 85a and the second sub-ring 86a, and its preparation is convenient and simple. In other embodiments, the first elastic member 8a can also be formed into an integrally molded structural member through an injection molding process.

[0447] It is understandable that the structure of the second elastic member 8b can also be found in Figure 5 The structural arrangement of the first elastic member 8a is shown in detail and will not be described in detail here.

[0448] In other embodiments, the first elastic member 8a and the second elastic member 8b may also adopt other structures. It is understandable that the support pieces that can both support the first crossbar 2 and deform in the X-axis direction are within the protection scope of this application.

[0449] Fig.45 It is a schematic structural diagram of a third elastic member 8c provided in an embodiment of the present application in one implementation manner. Fig.46 yes Figure 2 The sound-generating device 100 shown is a partial structural schematic diagram of another embodiment.

[0450] like Fig.45 and Fig.46 As shown, the sound-generating device 100 further includes a third elastic member 8c. The third elastic member 8c may be a spring, a spring sheet, etc. The following description is made by taking the third elastic member 8c being a spring sheet as an example.

[0451] Exemplarily, the third elastic member 8c includes a first end 81c, a middle portion 82c and a second end 83c connected in sequence. The first end 81c and the second end 83c of the third elastic member 8c are bent toward the same side of the middle portion 82c of the third elastic member 8c. In addition, the first end 81c and the second end 83c of the third elastic member 8c are both folded multiple times. It is understandable that the third elastic member 8c can be extended or shortened along the X-axis direction.

[0452] It is understandable that the third elastic member 8c of this embodiment can be used in conjunction with the first elastic member 8a of each of the above embodiments. Fig.15 The structure of the first elastic member 8a shown in the figure is used in conjunction with the structure of the first elastic member 8a. Fig.15 The connection method of the first elastic member 8a, the first crossbar 2 and the first frame 1a shown in FIG. Fig.16 The embodiment shown is not described in detail here. The following specifically introduces the connection method between the third elastic member 8c and the first cross bar 2 and the first frame 1a.

[0453] like Fig.45 and Fig.46 As shown, the first end 81c and the second end 83c of the third elastic member 8c can be fixed to the first end 21 of the first crossbar 2. Exemplarily, the first end 81c and the second end 83c of the third elastic member 8c can be embedded in the first end 21 of the first crossbar 2.

[0454] In addition, the middle portion 82c of the third elastic member 8c can be fixed to the first frame 1a (see Fig.31 In this way, the third elastic member 8c can be extended or shortened along the X-axis direction with the side wall of the first frame 1a as a supporting point.

[0455] like Fig.46 As shown, the sound generating device 100 may also include a fourth elastic member 8d. The first end 81d and the second end 83d of the fourth elastic member 8d may be fixed to the first end 31 of the second crossbar 3. The middle portion 82d of the fourth elastic member 8d may be fixed to the first frame 1a (see Fig.31 ). It is understandable that the fourth elastic member 8d and the third elastic member 8c may be of the same or similar structure, a symmetrical or partially symmetrical structure, or a different structure. In this embodiment, the fourth elastic member 8d and the third elastic member 8c are symmetrical structures. The basic design of the component structure of the fourth elastic member 8d, the connection relationship design between the components, and the connection relationship design between the components and other structures outside the assembly can all refer to the relevant scheme of the third elastic member 8c. At the same time, the fourth elastic member 8d and the third elastic member 8c are allowed to be slightly different in the detailed structure or position arrangement of the components. The structure of the fourth elastic member 8d is not described in detail here.

[0456] like Fig.45 As shown, the third elastic member 8c includes an insulating portion 84c, a first conductive portion 85c and a second conductive portion 86c. The first conductive portion 85c and the second conductive portion 86c are respectively connected to the two ends of the insulating portion 84c. The insulating portion 84c is made of insulating material. The first conductive portion 85c and the second conductive portion 86c can both be made of conductive material.

[0457] It can be understood that the relationship between the insulating portion 84c, the first conductive portion 85c, the second conductive portion 86c of the third elastic member 8c and the first end 81c, the middle portion 82c and the second end 83c of the third elastic member 8c can be arranged in a variety of ways. For example, a portion of the middle portion 82c of the third elastic member 8c forms the insulating portion 84c of the third elastic member 8c. The first end 81c of the third elastic member 8c and a portion of the middle portion 82c of the third elastic member 8c form the first conductive portion 85c of the third elastic member 8c. The second end 83c of the third elastic member 8c and a portion of the middle portion 82c of the third elastic member 8c form the second conductive portion 86c of the third elastic member 8c.

[0458] like Fig.45 and Fig.46 As shown, the first end of the first conductive portion 85c can pass through the first cross bar 2 and be electrically connected to the input end of the first voice coil 6a. The second end of the first conductive portion 85c can be used to be electrically connected to the positive pole of an external power supply. The first end of the second conductive portion 86c can pass through the first cross bar 2 and be electrically connected to the output end of the first voice coil 6a. The second end of the second conductive portion 86c can be used to be electrically connected to the negative pole of an external power supply. In this way, the first voice coil 6a, the first conductive portion 85c, the second conductive portion 86c and the external power supply can form a current loop. In other embodiments, the electrical connection positions of the first conductive portion 85c and the second conductive portion 86c can be swapped. The details are not repeated here.

[0459] It is understandable that the third elastic member 8c can not only movably connect the first crossbar 2 to the first frame 1a, but also electrically connect the first voice coil 6a to an external device. The third elastic member 8c has a function of "one object with multiple uses".

[0460] It is understandable that the configuration of the fourth elastic member 8d and the configuration of the third elastic member 8c may be the same or similar in design, and the details will not be described in detail here.

[0461] It is understood that the electrical connection of the first voice coil 6a to the external device is not limited to Fig.45 and Fig.46 In other embodiments, a first conductive member (not shown) and a second conductive member (not shown) may be provided on the first cross bar 2. The first conductive member and the second conductive member may be embedded in the first cross bar 2. In addition, the first conductive member may be electrically connected between the output end of the first voice coil 6a and the negative pole of the external power supply. The second conductive member may be electrically connected between the input end of the first voice coil 6a and the positive pole of the external power supply. In this way, the first voice coil 6a may be electrically connected to an external device through the first conductive member and the second conductive member.

[0462] Several implementations of the first reinforcing member 93a are described above. Several configurations of the first reinforcing member 93a will be described in detail below in conjunction with the relevant drawings. The same technical contents as above will not be repeated.

[0463] Fig.47 It is a schematic structural diagram of another implementation manner of the first reinforcing member 93a provided in an embodiment of the present application. Fig.48 yes Figure 3 The structure diagram of the first diaphragm assembly 9a shown in another implementation.

[0464] like Fig.47 As shown, the first reinforcing member 93a is provided with a first groove 991. There may be one first groove 991. There may also be multiple first grooves 991, which are arranged at intervals.

[0465] Exemplarily, the extension direction of the first groove 991 is parallel to the length extension direction of the first reinforcing piece 93 a.

[0466] like Fig.48 As shown, when the first reinforcing member 93a is fixed on the first diaphragm 90a, the first groove 991 forms an opening on the surface of the first reinforcing member 93a away from the first diaphragm 90a.

[0467] In addition, the first reinforcing member 93a is provided with a second groove 994. The second groove 994 may be one. The second groove 994 may also be multiple, and the multiple second grooves 994 are arranged at intervals. An opening is formed on the surface of the first reinforcing member 93a close to the first diaphragm 90a. At this time, the first reinforcing member 93a is roughly square wave-shaped.

[0468] Exemplarily, the extension direction of the second groove 994 is parallel to the length extension direction of the first reinforcing piece 93 a.

[0469] Fig.49 It is a structural schematic diagram of another implementation manner of the first reinforcing member 93a provided in an embodiment of the present application.

[0470] like Fig.49 and Fig.50 As shown, the first reinforcing member 93a may also be provided with a protrusion 992. The protrusion 992 may be one. The protrusion 992 may also be multiple, and the multiple protrusions 992 are arranged at intervals. In this case, the first reinforcing member 93a is roughly in the shape of a wall.

[0471] It can be understood that when the first reinforcing member 93a is fixed on the first diaphragm 90a, the protrusion 992 is protruded on the surface of the first reinforcing member 93a away from the first diaphragm 90a. In this way, the overall structural strength of the first reinforcing member 93a is greater, that is, the first reinforcing member 93a is not easy to bend. The first reinforcing member 93a can greatly improve the structural strength of the first diaphragm assembly 9a.

[0472] Fig.50 It is a structural schematic diagram of another implementation manner of the first reinforcing member 93a provided in an embodiment of the present application. Fig.51 yes Figure 3 The structure diagram of the first diaphragm assembly 9a shown in another embodiment.

[0473] like Fig.50 and Fig.51 As shown, there are multiple first reinforcing members 93a, and the multiple first reinforcing members 93a are arranged at intervals. In this way, the overall structural strength of the first reinforcing member 93a is greater, that is, the first reinforcing member 93a is not easy to bend. The first reinforcing member 93a can greatly improve the structural strength of the first diaphragm assembly 9a.

[0474] For example, the arrangement direction of the plurality of first reinforcing members 93a may be Fig.28 The width direction of the second plate member 442 of the first transmission member 4 is the Y-axis direction. In other embodiments, the arrangement direction of the plurality of first reinforcing members 93a is not limited.

[0475] It is understood that the structure of the first reinforcing member 93a of this embodiment can be referred to Fig. 27 and Fig.28 The structure of the first reinforcing member 93a shown in the figure, specifically, the first reinforcing member 93a includes a main body 932a, a first bending portion 931a and a second bending portion 933a, that is, the cross-section of the first reinforcing member 93a is roughly U-shaped. The main body 932a is fixed on the first diaphragm 90a. The first bending portion 931a and the second bending portion 933a are located on the side of the main body 932a facing away from the first diaphragm 90a.

[0476] In other embodiments, the first reinforcing member 93a may also be in other shapes, for example, the cross-section of the first reinforcing member 93a may be in a rectangular, wavy, or square wave shape, etc. Specifically, the present application does not limit this.

[0477] The above describes various embodiments of the sound-generating device 100. In each of the above embodiments, the first transmission member 4 is connected to the first crossbar 2 by first fixing the first end 41 of the first transmission member 4 on the first crossbar 2, and then the connection between the first end 41 and the middle 42 of the first transmission member can be bent, thereby realizing the movable connection between the first transmission member 4 and the first crossbar 2. Of course, in other embodiments, the first transmission member 4 and the first crossbar 2 may also be connected in other movable ways. For example, the first transmission member 4 may not include the first end 41. At this time, the end of the middle 42 of the first transmission member 4 may be directly used to flexibly connect the first crossbar 2 through a movable mechanism (such as a ball-connecting rod mechanism, etc.). At this time, the end of the middle 42 of the first transmission member 4 can serve as the first end of the first transmission member 4. The details will not be repeated here. It is understandable that the connection mode between the second end 43 of the first transmission member 4 and the second crossbar 3, the connection mode between the first end 51 of the second transmission member 5 and the first crossbar 2, and the connection mode between the second end 53 of the second transmission member 5 and the second crossbar 3 can also refer to the connection mode between the first transmission member 4 and the first crossbar 2. The details will not be repeated here.

[0478] The above describes various embodiments of the sound-generating device 100. In each of the embodiments above, the first end of the first transmission member 4 is connected to the bottom surface of the first cross bar 2, and the second end of the first transmission member 4 is connected to the bottom surface of the second cross bar 3. The middle portion of the first transmission member 4 protrudes toward the direction close to the first diaphragm assembly 9a and is connected to the first diaphragm assembly 9a. In addition, the first end of the second transmission member 5 is connected to the top surface of the first cross bar 2, and the second end of the second transmission member 5 is connected to the top surface of the second cross bar 3. The middle portion of the second transmission member 5 is recessed toward the direction close to the second diaphragm assembly 9b and is connected to the second diaphragm assembly 9b. In this way, the first transmission member 4 can be cross-arranged with the second transmission member 5.

[0479] Of course, in other embodiments, the connection position of the first transmission member 4 with the first crossbar 2 and the second crossbar 3 is not limited. The connection position of the second transmission member 5 with the first crossbar 2 and the second crossbar 3 is not limited. For example, the first end of the first transmission member 4 can be connected to the top surface of the first crossbar 2, and the second end of the first transmission member 4 can be connected to the bottom surface of the second crossbar 3. Or, the first end of the first transmission member 4 can be connected to the bottom surface of the first crossbar 2, and the second end of the first transmission member 4 can be connected to the top surface of the second crossbar 3. For another example, the first end of the second transmission member 5 is connected to the bottom surface of the first crossbar 2, and the second end of the second transmission member 5 is connected to the top surface of the second crossbar 3. Or the first end of the second transmission member 5 is connected to the top surface of the first crossbar 2, and the second end of the second transmission member 5 is connected to the bottom surface of the second crossbar 3. For another example, the first end of the first transmission member 4 can be connected to the top surface of the first crossbar 2, and the second end of the first transmission member 4 can be connected to the top surface of the second crossbar 3. In addition, the first end of the second transmission member 5 can be connected to the bottom surface of the first crossbar 2, and the second end of the second transmission member 5 can be connected to the bottom surface of the second crossbar 3. In this case, the first transmission member 4 and the second transmission member 5 can be arranged without crossing. For another example, the first end of the first transmission member 4 can be connected to any position on the first crossbar 2. The second end of the first transmission member 4 can be connected to any position on the second crossbar 3. The first end of the second transmission member 5 can be connected to any position on the first crossbar 2. The second end of the second transmission member 5 is connected to any position on the second crossbar 3.

[0480] The above describes various embodiments of the sound-emitting device 100. In each of the above embodiments, the sound-emitting device 100 includes both the first cross bar 2 and the second cross bar 3. In other embodiments, the sound-emitting device 100 may also include the first cross bar 2 or the second cross bar 3. For example, when the sound-emitting device 100 includes the first cross bar 2, the second end of the first transmission member 4 can be directly connected to the basin frame 1. The second end of the second transmission member 5 can be directly connected to the basin frame 1. For another example, when the sound-emitting device 100 includes the second cross bar 3, the first end of the first transmission member 4 can be directly connected to the basin frame 1. The first end of the second transmission member 5 can be directly connected to the basin frame 1. This application does not make any specific limitations.

[0481] The above introduces various embodiments of the sound-emitting device 100. In each of the above embodiments, the sound-emitting device 100 includes both a first diaphragm assembly 9a and a second diaphragm assembly 9b. In other words, the sound-emitting device 100 is a double diaphragm structure. In other embodiments, the sound-emitting device 100 is a single diaphragm structure. At this time, the sound-emitting device 100 includes the first diaphragm assembly 9a, that is, the sound-emitting device 100 may not include the second diaphragm assembly 9b and the second transmission member 5. In this way, the rear cavity 9c of the sound-emitting device 100 can be surrounded by the first diaphragm assembly 9a and the basin frame 1. In other embodiments, the sound-emitting device 100 can also be a single diaphragm structure of other structures. No specific limitation is made here.

[0482] It can be understood that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0483] It is understood that all the above drawings are exemplary illustrations of the present application and do not represent the actual size of the product. Moreover, the size ratio relationship between the components in the drawings is not intended to limit the actual product of the present application.

[0484] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A sound-generating device (100), characterized in that: include: Basin stand (1); A first diaphragm assembly (9a) and a second diaphragm assembly (9b), wherein the first diaphragm assembly (9a) and the second diaphragm assembly (9b) are fixed in the middle of the basin frame (1) and are arranged opposite to each other; A first cross bar (2) and a second cross bar (3), wherein the first cross bar (2) is movably connected to a first end of the basin frame (1), and the second cross bar (3) is movably connected to a second end of the basin frame (1); A first transmission member (4), wherein a first end of the first transmission member (4) is connected to the first cross bar (2), a second end of the first transmission member (4) is connected to the second cross bar (3), and a middle portion of the first transmission member (4) protrudes in a direction close to the first diaphragm assembly (9a) and is connected to the first diaphragm assembly (9a); A second transmission member (5), wherein the first end of the second transmission member (5) is connected to the first cross bar (2), the second end of the second transmission member (5) is connected to the second cross bar (3), the middle portion of the second transmission member (5) is recessed in a direction close to the second diaphragm assembly (9b), and is connected to the second diaphragm assembly (9b), wherein the first end of the second transmission member (5) is located on a side of the first end of the first transmission member (4) close to the first diaphragm assembly (9a), and the second end of the second transmission member (5) is located on a side of the second end of the first transmission member (4) close to the first diaphragm assembly (9a); A driving device (101), wherein the driving device (101) is configured to drive the first crossbar (2) and the second crossbar (3) away from each other, and the first crossbar (2) and the second crossbar (3) drive the middle part of the first transmission member (4) and the middle part of the second transmission member (5) to approach each other; the driving device (101) is also configured to drive the first crossbar (2) and the second crossbar (3) to approach each other, and the first crossbar (2) and the second crossbar (3) drive the middle part of the first transmission member (4) and the middle part of the second transmission member (5) to move away from each other.

2. The sound-generating device (100) according to claim 1, characterized in that: A first avoidance hole (444) is provided in the middle of the first transmission member (4), and a middle of the second transmission member (5) passes through the first avoidance hole (444), and / or a second avoidance hole (544) is provided in the middle of the second transmission member (5), and a middle of the first transmission member (4) passes through the second avoidance hole (544).

3. The sound-generating device (100) according to claim 1 or 2, characterized in that: The first end of the first transmission member (4) is connected to the bottom surface of the first cross bar (2), and the second end of the first transmission member (4) is connected to the bottom surface of the second cross bar (3); and / or the first end of the second transmission member (5) is connected to the top surface of the first cross bar (2), and the second end of the second transmission member (5) is connected to the top surface of the second cross bar (3).

4. The sound-generating device (100) according to claim 3, characterized in that: The middle part of the first transmission member (4) protrudes relative to the top surface of the first cross bar (2) and the top surface of the second cross bar (3); and / or the middle part of the second transmission member (5) protrudes relative to the bottom surface of the first cross bar (2) and the bottom surface of the second cross bar (3).

5. The sound-generating device (100) according to claim 3 or 4, characterized in that: The first cross bar (2) comprises a first sub-connecting portion (231) and a second sub-connecting portion (232); a bottom surface (2322) of the second sub-connecting portion (232) of the first cross bar (2) protrudes relative to a bottom surface (2312) of the first sub-connecting portion (231) of the first cross bar (2); the second cross bar (3) comprises a first sub-connecting portion (331) and a second sub-connecting portion (332); a bottom surface (3322) of the second sub-connecting portion (332) of the second cross bar (3) protrudes relative to a bottom surface (3312) of the first sub-connecting portion (331) of the second cross bar (3); a first end portion of the first transmission member (4) is fixed to a bottom surface (2322) of the second sub-connecting portion (232) of the first cross bar (2); and a second end portion of the first transmission member (4) is fixed to a bottom surface (3322) of the second sub-connecting portion (332) of the second cross bar (3); And / or, the top surface (2321) of the second sub-connecting portion (232) of the first cross bar (2) protrudes relative to the top surface (2311) of the first sub-connecting portion (231) of the first cross bar (2), the top surface (3321) of the second sub-connecting portion (332) of the second cross bar (3) protrudes relative to the top surface (3311) of the first sub-connecting portion (331) of the second cross bar (3), the first end of the second transmission member (5) is fixed to the top surface (2321) of the second sub-connecting portion (232) of the first cross bar (2), and the second end of the second transmission member (5) is fixed to the top surface (3321) of the second sub-connecting portion (332) of the second cross bar (3).

6. The sound-generating device (100) according to any one of claims 1 to 5, characterized in that: The first transmission member (4) comprises a first plate member (441), a second plate member (442), a third plate member (443), a fourth plate member (41) and a fifth plate member (43); the first plate member (441), the second plate member (442) and the third plate member (443) are connected between the fourth plate member (41) and the fifth plate member (43); the second plate member (442) is connected between the first plate member (441) and the third plate member (443); the first plate member (441) is connected to the fourth plate member (41); the third plate member (443) is connected to the fifth plate member (43); the second plate member (442) protrudes from the same side of the fourth plate member (41) and the fifth plate member (43); wherein the connection between two adjacent plates can be bent; The fourth plate member (41) constitutes the first end portion of the first transmission member (4), the fifth plate member (43) constitutes the second end portion of the first transmission member (4), and the first plate member (441), the second plate member (442), and the third plate member (443) constitute the middle portion of the first transmission member (4).

7. The sound-generating device (100) according to claim 6, characterized in that: The fourth plate (41) and the first plate (441), the first plate (441) and the second plate (442), the second plate (442) and the third plate (443), and the third plate (443) and the fifth plate (43) are all arranged at an obtuse angle.

8. The sound-generating device (100) according to claim 6, characterized in that: The connection area between the fourth plate (41) and the first plate (441) is greater than the connection area between the first plate (441) and the second plate (442).

9. The sound-generating device (100) according to claim 6, characterized in that: The first plate member (441), the second plate member (442) and the third plate member (443) constitute a first connecting member (44), and the number of the first connecting member (44) is one or more; The number of the first connecting members (44) is plural, the space between two adjacent first connecting members (44) forms a first avoidance space (444), and the middle portion of the second transmission member (5) passes through the first avoidance space (444).

10. The sound generating device (100) according to any one of claims 6 to 9, characterized in that: The first transmission member (4) further comprises a first fixing member (48a), the first fixing member (48a) comprising a first end portion (481a), a middle portion (482a) and a second end portion (483a) connected in sequence, and a connection between the first end portion (481a) of the first fixing member (48a) and the middle portion (482a) of the first fixing member (48a), and a connection between the second end portion (483a) of the first fixing member (48a) and the middle portion (482a) of the first fixing member (48a) are both bendable; The first end portion (481a) of the first fixing member (48a) is fixed to the first plate member (441) of the first transmission member (4), the second end portion 483a of the first fixing member (48a) is fixed to the basin frame (1), and the middle portion (482a) of the first fixing member (48a) is arranged at an obtuse angle to the first plate member (442) of the first transmission member (4).

11. The sound generating device (100) according to any one of claims 1 to 10, characterized in that: The first transmission member (4) comprises a flexible member (45) and a plurality of hard patches (46), the flexible member (45) is an integrally formed structure, and the plurality of hard patches (46) are fixed at intervals in the middle portion (452) of the flexible member (45); Alternatively, the first transmission member (4) comprises a plurality of hard members (47a) and a plurality of injection-molded members (47b), and two adjacent hard members (47a) are connected via the injection-molded members (47b).

12. The sound-generating device (100) according to any one of claims 1 to 11, characterized in that: The sound-generating device (100) comprises a first elastic member (8a), wherein the first elastic member (8a) is connected between the first cross bar (2) and the first end of the basin frame (1).

13. The sound-generating device (100) according to claim 12, characterized in that: The first elastic member (8a) comprises a first end portion (81a), a middle portion (82a) and a second end portion (83a) which are connected in sequence, the first end portion (81a) of the first elastic member (8a) being fixedly connected to the basin frame (1), and the second end portion (83a) of the first elastic member (8a) being fixedly connected to the first cross bar (2); The middle portion (82a) of the first elastic member (8a) can enclose a first space (84a).

14. The sound-generating device (100) according to claim 13, characterized in that: The first elastic member (8a) is formed by connecting a first sub-ring (85a) and a second sub-ring (86a), and the middle part (852a) of the first sub-ring (85a) and the middle part (862a) of the second sub-ring (86a) enclose the first space (84a).

15. The sound generating device (100) according to any one of claims 1 to 14, characterized in that: The driving device (101) comprises a first voice coil (6a), a second voice coil (6b), a first magnetic circuit system (7a) and a second magnetic circuit system (7b); One of the first magnetic circuit system (7a) and the first voice coil (6a) is fixed to the first end of the basin frame (1), and the other is fixed to the first crossbar (2); the first voice coil (6a) cooperates with the first magnetic circuit system (7a) to drive the first crossbar (2) and the second crossbar (3) to move away from each other or to move closer to each other; One of the second magnetic circuit system (7b) and the second voice coil (6b) is fixed to the second end of the basin frame (1), and the other is fixed to the second cross bar (3); the second voice coil (6b) cooperates with the second magnetic circuit system (7b) to drive the first cross bar (2) and the second cross bar (3) to move away from each other, or to move closer to each other.

16. The sound-generating device (100) according to claim 15, characterized in that: The first magnetic circuit system (7a) is fixed to the first end of the basin frame (1), and the first voice coil (6a) is fixed to the first crossbar (2); The first magnetic circuit system (7a) comprises a first magnetic circuit component (70A) and a second magnetic circuit component (70B), wherein the first magnetic circuit component (70A) and the second magnetic circuit component (70B) are respectively located on two sides of a winding plane of the first voice coil (6a).

17. The sound-generating device (100) according to claim 16, characterized in that: The first magnetic circuit component (70A) comprises a first magnet (711a), a second magnet (712a), a third magnet (713a), a fourth magnet (714a) and a fifth magnet (715a), wherein the third magnet (713a) is located between the first magnet (711a) and the second magnet (712a), the third magnet (713a), the first magnet (711a) and the second magnet (712a) are located between the fourth magnet (714a) and the fifth magnet (715a), and the first magnet (711a) is close to the fourth magnet (714a), and the second magnet (712a) is close to the fifth magnet (715a); The polarization directions of the first magnet (711a) and the second magnet (712a) are opposite and parallel to the third direction. The polarization directions of the third magnet (713a), the fourth magnet (714a) and the fifth magnet (715a) are all parallel to the first direction. The polarization direction of the third magnet (713a) is opposite to that of the fourth magnet (714a). The polarization direction of the fourth magnet (714a) is the same as that of the fifth magnet (715a). The first direction is the direction from the first cross bar (2) to the second cross bar (3). The third direction is the direction from the second diaphragm assembly (9b) to the first diaphragm assembly (9a).

18. The sound-generating device (100) according to claim 17, characterized in that: The fourth magnet (714a) and / or the fifth magnet (715a) of the first magnetic circuit assembly (70A) is provided with a first avoidance gap (710a), and the first avoidance gap (710a) is configured to provide a movement space for the first cross bar (2) when the first cross bar (2) moves relative to the basin frame (1).

19. The sound-generating device (100) according to claim 16, characterized in that: The first magnetic circuit component (70A) comprises a plurality of magnets, wherein the plurality of magnets are in a Halbach magnet array; Alternatively, the first magnetic circuit component (70A) comprises a first magnetic member (71a), a first magnetic conductive member (73a), a second magnetic member (75a), a second magnetic conductive member (77a) and a third magnetic member (79a) connected in sequence along the first direction, the polarization directions of the first magnetic member (71a), the second magnetic member (75a) and the third magnetic member (79a) of the first magnetic circuit component (70A) are all parallel to the first direction, the polarization direction of the second magnetic member (75a) is opposite to the polarization direction of the first magnetic member (71a), and the polarization direction of the third magnetic member (79a) is the same as the polarization direction of the first magnetic member (71a); Alternatively, the first magnetic circuit component (70A) comprises a first magnet (711a) and a second magnet (712a), the arrangement direction of the first magnet (711a) and the second magnet (712a) is parallel to a first direction, the polarization direction of the first magnet (711a) is opposite to the polarization direction of the second magnet (712a), and is parallel to a third direction, the first direction is the direction from the first cross bar (2) to the second cross bar (3), and the third direction is the direction from the second diaphragm component (9b) to the first diaphragm component (9a).

20. The sound generating device (100) according to any one of claims 16 to 19, characterized in that: The sound generating device (100) comprises a third voice coil (6c), the third voice coil (6c) being located between the first magnetic circuit component (70A) and the second magnetic circuit component (70B), and being spaced apart from the first voice coil (6a).

21. The sound generating device (100) according to any one of claims 16 to 19, characterized in that: The sound-generating device (100) further comprises a third elastic member (8c); The third elastic member (8c) connects the basin frame (1) and the first cross bar (2), and the third elastic member (8c) can provide elastic force in a first direction, wherein the first direction is the direction from the first cross bar (2) to the second cross bar (3).

22. The sound-generating device (100) according to claim 21, characterized in that: The third elastic member (8c) comprises an insulating portion (84c), a first conductive portion (85c) and a second conductive portion (86c), wherein the first conductive portion (85c) and the second conductive portion (86c) are respectively connected to two ends of the insulating portion (84c); The first conductive part (85c) is electrically connected to an input end of the first voice coil (6a), and the second conductive part (86c) is electrically connected to an output end of the first voice coil (6a).

23. The sound-generating device (100) according to any one of claims 1 to 22, characterized in that: The first diaphragm assembly (9a) comprises a first diaphragm (90a) and a first reinforcement member (93a); The first diaphragm (90a) is fixed on the basin frame (1), and the middle part of the first transmission member (4) is connected to the first diaphragm (90a); The first reinforcing member (93a) is fixed on the first diaphragm (90a) and is located on the side of the first diaphragm (90a) facing the second diaphragm assembly (9b). The first reinforcing member (93a) is spaced apart from the middle of the first transmission member (4), or the first reinforcing member (93a) is fixed on the middle of the first transmission member (4).

24. The sound-generating device (100) according to claim 23, characterized in that: The first reinforcing member (93a) comprises a main body portion (932a), a first bent portion (931a) and a second bent portion (933a), and the main body portion (932a) is fixed on the first diaphragm (90a); The first bending portion (931a) and the second bending portion (933a) are respectively connected to the two sides of the main body (932a), and the first bending portion (931a) and the second bending portion (933a) are bent relative to the main body (932a) along a side away from the first diaphragm (90a).

25. The sound-generating device (100) according to claim 23 or 24, characterized in that: The second diaphragm assembly (9b) comprises a second diaphragm (90b) and a second reinforcement member (93b); The second diaphragm (90b) is fixed on the basin frame (1), the second diaphragm (90b) is arranged opposite to the first diaphragm (90a), and the middle part of the second transmission member (5) is connected to the second diaphragm (90b); The second reinforcing member (93b) is fixed on the second diaphragm (90b) and is located on the side of the second diaphragm (90b) facing the first diaphragm assembly (9a). The second reinforcing member (93b) is spaced apart from the middle of the second transmission member (5), or the second reinforcing member (93b) is fixed to the middle of the second transmission member (5).

26. The sound-generating device (100) according to claim 25, characterized in that: The middle portion (42) of the first transmission member (4) includes a second plate member (442) connected to the first diaphragm (90a), the first reinforcing member (93a) includes a first long side portion (934a), the length extension direction of the first long side portion (934a) of the first reinforcing member (93a) is parallel to the length extension direction of the second plate member (442) of the first transmission member (4), and the first long side portion (934a) of the first reinforcing member (93a) and the second plate member (442) of the first transmission member (4) are arranged at intervals along the width direction of the second plate member (442) of the first transmission member (4); The middle part of the second transmission member (5) includes a second plate member (542) connected to the second diaphragm (90b); the second reinforcing member (93b) includes a second long side portion (934b), and the length extension direction of the second long side portion (934b) is parallel to the length extension direction of the second plate member (542) of the second transmission member (5); the second long side portion (934b) of the second reinforcing member (93b) and the second plate member (542) of the second transmission member (5) are arranged at intervals along the width direction of the second plate member (542) of the second transmission member (5); The sum of the number of the first long sides (934a) of the first reinforcing member (93a) and the second plate members (442) of the first transmission member (4) is equal to the sum of the number of the second long sides (934b) of the second reinforcing member (93b) and the number of the second plate members (542) of the second transmission member (5).

27. An electronic device (1000), characterized in that: It comprises a sound emitting device (100) as claimed in any one of claims 1 to 26.

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