Sound production device and electronic device

Abstract

The application provides a sound production device and an electronic equipment. By connecting the first end of the first transmission member to the first horizontal rod, connecting the second end of the first transmission member to the second horizontal rod, protruding the middle part of the first transmission member towards the first diaphragm assembly, and connecting the first diaphragm assembly, connecting the first end of the second transmission member to the first horizontal rod, connecting the second end of the second transmission member to the second horizontal rod, recessing the middle part of the second transmission member towards the second diaphragm assembly, and connecting the second diaphragm assembly, locating the first end of the second transmission member on the side of the first end of the first transmission member close to the first diaphragm assembly, locating the second end of the second transmission member on the side of the second end of the first transmission member close to the first diaphragm assembly, and crossing the middle part of the second transmission member with the middle part of the first transmission member, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are mutually multiplexed, which is beneficial to the thin type setting of the sound production device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electro-acoustic technology, and in particular to a sound generating device and electronic equipment. BACKGROUND

[0002] In electronic products (for example, sound boxes, televisions, computers, etc.), thin design speakers are increasingly attracting the attention of major manufacturers. The traditional speaker converts the lateral vibration of the voice coil into the longitudinal vibration of the upper and lower diaphragms through a transmission mechanism, so as to separate the magnetic circuit and the diaphragm in the thickness direction. However, the vibration space of the upper and lower diaphragms of the traditional speaker is stacked along the thickness direction, thereby causing the thickness of the traditional speaker to be large, and the traditional speaker is not easy to achieve thin design. SUMMARY

[0003] The present application provides a sound generating device and electronic equipment which can achieve thin design and high space utilization.

[0004] In a first aspect, the present application provides a sound generating device. The sound generating device comprises a spider, 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 at the middle part of the spider and are oppositely arranged;

[0006] The first crossbar is movably connected to the first end part of the spider, and the second crossbar is movably connected to the second end part of the spider;

[0007] The first end part of the first transmission member is connected to the first crossbar, the second end part of the first transmission member is connected to the second crossbar, the middle part of the first transmission member protrudes towards the first diaphragm assembly, and the first diaphragm assembly is connected to the middle part of the first transmission member;

[0008] The first end part of the second transmission member is connected to the first crossbar, the second end part of the second transmission member is connected to the second crossbar, the middle part of the second transmission member is recessed towards the second diaphragm assembly, and the second diaphragm assembly is connected to the middle part of the second transmission member, wherein the first end part of the second transmission member is located on one side of the first end part of the first transmission member close to the first diaphragm assembly, and the second end part of the second transmission member is located on one side of the second end part of the first transmission member close to the first diaphragm assembly;

[0009] The driving device is configured to drive the first crossbar and the second crossbar to move away from each other, and the first crossbar and the second crossbar drive the middle part of the first transmission member and the middle part of the second transmission member to move close to each other; the driving device is also configured to drive the first crossbar and the second crossbar to move close to each other, and the first crossbar and the second crossbar drive the middle part of the first transmission member and the middle part of the second transmission member to move 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, connecting the second end of the first transmission member to the second cross bar, protruding the middle part of the first transmission member towards the first diaphragm assembly, and connecting the first diaphragm assembly, connecting the first end of the second transmission member to the first cross bar, connecting the second end of the second transmission member to the second cross bar, recessing the middle part of the second transmission member towards the second diaphragm assembly, and connecting 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 arranged in cross 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 mutually multiplexed. At this time, the size of the thickness of the sound generating device can be further reduced, thereby being more conducive to the thin design of the sound generating device.

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

[0012] In a 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 larger. In other words, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are multiplexed to a larger extent. At this time, the size of the thickness of the sound generating device can be reduced to a larger extent, thereby being more conducive to the thin design of the sound generating device.

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

[0014] In a possible implementation, the first cross bar comprises a first sub-connection part and a second sub-connection part, the bottom surface of the second sub-connection part of the first cross bar is protruded relative to the bottom surface of the first sub-connection part of the first cross bar, the second cross bar comprises a first sub-connection part and a second sub-connection part, the bottom surface of the second sub-connection part of the second cross bar is protruded relative to the bottom surface of the first sub-connection part of the second cross bar, the first end of the first transmission member is fixed on the bottom surface of the second sub-connection part of the first cross bar, and the second end of the first transmission member is fixed on the bottom surface of the second sub-connection part of the second cross bar.

[0015] And / or, the top surface of the second sub-connection part of the first cross bar is protruded relative to the top surface of the first sub-connection part of the first cross bar, the top surface of the second sub-connection part of the second cross bar is protruded relative to the top surface of the first sub-connection part of the second cross bar, the first end of the second transmission member is fixed on the top surface of the second sub-connection part of the first cross bar, and the second end of the second transmission member is fixed on the top surface of the second sub-connection 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 increased to a large extent. 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 size of the thickness of the sound generating device can be greatly reduced, thereby being more conducive to the thin design of the sound generating device.

[0017] In a possible implementation, the first transmission member comprises 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, and the second plate is protruded relative to the same side of the fourth plate and the fifth plate, wherein the connection between the adjacent two plates can be bent.

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

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

[0020] In a possible implementation, 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 of the fourth plate member and the first plate member is greater than the connection area of the first plate member and the second plate member. In this way, while ensuring that the first transmission member and the second transmission member do not interfere during movement, the connection area of the fourth plate member and the first plate member of the first transmission member can be greatly increased, thereby avoiding deformation of the fourth plate member and the first plate member of the first transmission member.

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

[0023] In a possible implementation, the first transmission member further includes a first fixing member, and the first fixing member includes a first end part, a middle part, and a second end part connected in sequence. The connection between the first end part of the first fixing member and the middle part of the first fixing member and the connection between the second end part of the first fixing member and the middle part of the first fixing member are both foldable.

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

[0025] It can be understood that, while the first end part of the first transmission member extrudes the second plate member of the first transmission member through the first plate member of the first transmission member, the first fixing member also extrudes the second plate member of the first transmission member through the first plate member of the first transmission member, so that the second plate member of the first transmission member is also subjected to a force in the negative direction of the X axis. In this way, the forces in the X axis direction of the second plate member of the first transmission member can be mostly offset. At this time, the second plate member of the first transmission member is not easy to exert a force in the X axis direction on the first diaphragm assembly. The first diaphragm assembly is not easy to bend or deform. In this way, the first diaphragm assembly is not easy to form a new mode when vibrating in the Z axis direction. The first diaphragm assembly can vibrate in piston mode, and the first diaphragm assembly has a better sound pressure level. The X axis direction can be the direction in which the first cross rod points to the second cross rod. The Z axis direction can be the direction in which the second diaphragm assembly points to the first diaphragm assembly.

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

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

[0028] In a possible implementation, the sound generating device comprises a first elastic member, and the first elastic member is connected between the first horizontal rod and the first end of the yoke. It can be understood that the first horizontal rod can move relative to the yoke through deformation of the first elastic member.

[0029] In a possible implementation, the first elastic member comprises a first end, a middle part and a second end connected in sequence, the first end of the first elastic member is fixedly connected to the yoke, the second end of the first elastic member is fixedly connected to the first horizontal rod, and the middle part of the first elastic member can enclose a first space. In this way, the connection between the yoke and the first horizontal rod is more stable.

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

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

[0032] In a possible implementation, the wall surface of the first space is in the shape of a rhombus or a circle, a semicircle or a half rhombus.

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

[0034] In a possible implementation, the sound generating device comprises a second elastic member, and the second elastic member is connected between the second horizontal rod and the second end of the yoke; the second horizontal rod can move relative to the yoke through deformation of the second elastic member.

[0035] In a possible implementation, the driving device comprises 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 yoke, and the other is fixed to the first horizontal rod; the first voice coil cooperates with the first magnetic circuit system to drive the first horizontal rod and the second horizontal rod to move away from each other or move close to each other; one of the second magnetic circuit system and the second voice coil is fixed to the second end of the yoke, and the other is fixed to the second horizontal rod; the second voice coil cooperates with the second magnetic circuit system to drive the first horizontal rod and the second horizontal rod to move away from each other or move close to each other.

[0036] It can be understood that the driving device of the embodiment adopts two sets of driving systems, that is, the first voice coil and the first magnetic circuit system constitute the first set of driving system, and the second voice coil and the second magnetic circuit system constitute the second set of driving system. The two sets of driving systems are respectively arranged at the first end and the second end of the yoke. In this way, it is beneficial to realize the symmetrically arranged driving device, thereby being beneficial to generate the driving force with symmetry.

[0037] In a possible implementation, the first magnetic circuit system is fixed at the first end of the yoke, and the first voice coil is fixed at the first cross bar; the first magnetic circuit system comprises a first magnetic circuit assembly and a second magnetic circuit assembly, and the first magnetic circuit assembly and the second magnetic circuit assembly are respectively located on two sides of the winding plane of the first voice coil.

[0038] It can be understood that the first voice coil of the embodiment adopts two magnetic circuit assemblies (the first magnetic circuit assembly and the second magnetic circuit assembly) to cooperate with each other, so that the first cross bar can obtain the driving force of two ampere forces (the first ampere force and the second ampere force). In this way, the first cross bar can obtain a larger stroke in the X-axis direction.

[0039] In a possible implementation, the first magnetic circuit assembly comprises 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 the polarization direction of the fourth magnet, the polarization direction of the fourth magnet is the same as the polarization direction of the fifth magnet, and the first direction is the direction of the first cross bar pointing to the second cross bar, and the third direction is the direction of the second diaphragm assembly pointing to the first diaphragm assembly.

[0041] It can be understood that the first magnetic circuit assembly can make the first cross bar obtain a larger driving force through the above arrangement. In this way, the first cross bar 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 avoiding gap, and the first avoiding gap is configured to provide a moving space for the first cross bar when the first cross bar moves relative to the yoke.

[0043] In a possible implementation, the first magnetic circuit assembly comprises a plurality of magnets, and the plurality of magnets form a Halbach magnet array.

[0044] Alternatively, the first magnetic circuit assembly comprises, sequentially connected along the first direction, a first magnetic piece, a first magnetic conductive piece, a second magnetic piece, a second magnetic conductive piece, and a third magnetic piece, the polarization directions of the first magnetic piece, the second magnetic piece, and the third magnetic piece of the first magnetic circuit assembly are parallel to the first direction, the polarization direction of the second magnetic piece is opposite to that of the first magnetic piece, and the polarization direction of the third magnetic piece is the same as that of the first magnetic piece.

[0045] Alternatively, the first magnetic circuit assembly comprises a first magnetic stone and a second magnetic stone, the arrangement directions of the first magnetic stone and the second magnetic stone are parallel to the first direction, the polarization direction of the first magnetic stone is opposite to that of the second magnetic stone, and is parallel to a third direction, the first direction is a direction in which the first cross bar points to the second cross bar, and the third direction is a direction in which the second diaphragm assembly points to the first diaphragm assembly.

[0046] In a possible implementation, the sound generating device comprises a third voice coil, the third voice coil is located between the first magnetic circuit assembly and the second magnetic circuit assembly, and is arranged in a spaced manner with the first voice coil.

[0047] In a possible implementation, the sound generating device further comprises a third elastic piece.

[0048] The third elastic piece connects the yoke and the first cross bar, and can provide elastic force in the first direction, the first direction being a direction in which the first cross bar points to the second cross bar.

[0049] In a possible implementation, the third elastic piece comprises an insulating part, a first conductive part, and a second conductive part, the first conductive part and the second conductive part are respectively connected to two ends of the insulating part.

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

[0051] It can be understood that the third elastic piece can not only serve to movably connect the first cross bar to the yoke, but also serve to electrically connect the first voice coil to an external device. The third elastic piece has the function of “one thing with multiple uses”.

[0052] In a possible implementation, the first diaphragm assembly comprises a first diaphragm and a first reinforcing piece, the first diaphragm is fixed on the yoke, and the middle part of the first transmission member is connected to the first diaphragm, the first reinforcing piece is fixed on the first diaphragm and located on a side of the first diaphragm facing the second diaphragm assembly, the first reinforcing piece is arranged in a spaced manner with the middle part of the first transmission member, or the first reinforcing piece is fixed on the middle part of the first transmission member.

[0053] It can be understood that the first reinforcing member can improve the strength of the first diaphragm, thereby avoiding the first diaphragm from being locally concave or convex during vibration, and further avoiding 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 reinforcing member includes a main body part, a first bending part and a second bending part, the main body part is fixed on the first diaphragm, the first bending part and the second bending part are respectively connected to two sides of the main body part, and the first bending part and the second bending part are bent away from the first diaphragm with respect to the main body part.

[0055] It can be understood that the above structure of the first reinforcing member can greatly improve the overall structural strength of the first reinforcing member. In this way, the first reinforcing member is not easy to be bent. When the first reinforcing member is fixed on the first diaphragm, the first reinforcing member 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 shape, a U-shaped, a wave shape or a square wave shape.

[0057] In a possible implementation, the first reinforcing member is provided with a first groove, and the first groove is open on a surface of the first reinforcing member away from the first diaphragm. Alternatively, the first reinforcing member is provided with a protrusion, and the protrusion is protruded on a surface of the first reinforcing member away from the first diaphragm. It can be understood that when the first reinforcing member is fixed on the first diaphragm, the protrusion is protruded on the surface of the first reinforcing member away from the first diaphragm. In this way, the overall structural strength of the first reinforcing member is greater, that is, the first reinforcing member is not easy to be bent. When the first reinforcing member can greatly improve the structural strength of the first diaphragm.

[0058] In a possible implementation, the second diaphragm assembly includes a second diaphragm and a second reinforcing member, the second diaphragm is fixed on the basket, the second diaphragm is oppositely arranged with the first diaphragm, and the middle part of the second transmission member is connected to the second diaphragm, the second reinforcing member is fixed on the second diaphragm and located on a side of the second diaphragm facing the first diaphragm assembly, the second reinforcing member is spaced apart from the middle part of the second transmission member, or the second reinforcing member is fixed on the middle part of the second transmission member.

[0059] It can be understood that the second reinforcing member can improve the strength of the second diaphragm, thereby avoiding the second diaphragm from being locally concave or convex during vibration, and further avoiding 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 shape, a U-shaped, a wave shape or a square wave shape.

[0061] In a possible implementation, the middle part of the first transmission member includes a second plate member connected to the first diaphragm, the first reinforcing member includes a first long edge part, the length extension direction of the first long edge part of the first reinforcing member is parallel to the length extension direction of the second plate member of the first transmission member, and the first long edge part of the first reinforcing member is arranged apart from the second plate member of the first transmission member along the 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 reinforcing member includes a second long edge part, the length extension direction of the second long edge part of the second reinforcing member is parallel to the length extension direction of the second plate member of the second transmission member, and the second long edge part of the second reinforcing member is arranged apart from the second plate member of the second transmission member along the width direction of the second plate member of the second transmission member.

[0063] The sum of the number of the first long edge part of the first reinforcing member and the number of the second plate member of the first transmission member is equal to the sum of the number of the second long edge part of the second reinforcing member and the number of the second plate member 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, so that the sound production effect of the sound production device can be greatly improved.

[0065] In a possible implementation, the first diaphragm includes a first folded ring and a first ball top, the first folded ring includes a first fixed part, a connecting part and a second fixed part, the connecting part is connected between the first fixed part and the second fixed part, the connecting part protrudes relative to the same side of the first fixed part and the second fixed part, and the first fixed part of the first folded ring is fixed to the yoke.

[0066] The first ball top is fixed to the side of the second fixed part of the first folded ring away from the back cavity.

[0067] The first reinforcing member is fixed to the side of the second fixed part facing the back cavity.

[0068] In a possible implementation, the first diaphragm includes a first rigid member, and the first rigid member is connected between the first fixed part of the first folded ring and the yoke. For example, the material of the first rigid member can be stainless steel, aluminum or the like. For example, the first rigid member is annular.

[0069] It can be understood that the first rigid member can improve the structural strength of the first fixed part of the first folded ring. In this way, the structural strength of the first fixed part of the first folded ring can be avoided to be too low to be easily fixed to the yoke, that is, the mounting process of the first folded ring and the yoke is reduced.

[0070] In a second aspect, the present application provides an electronic device. The electronic device comprises the sound production apparatus as above. Since the sound production apparatus can realize thin-type arrangement and greatly improve the space utilization, when the sound production apparatus is applied to the electronic device, the electronic device also has the advantages of thin-type arrangement and greatly improved space utilization.

[0071] In a third aspect, the present application provides a mover of a sound production apparatus. The mover of the sound production apparatus comprises a first cross rod, a second cross rod, a first transmission member, and a second transmission member.

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

[0073] The middle part of the first transmission member protrudes away from the middle part of the second transmission member, the middle part of the second transmission member is recessed away from the middle part of the second transmission member, and the middle part of the second transmission member intersects and is spaced apart from the middle part of the first transmission member.

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

[0075] It can be understood that, by protruding the middle part of the first transmission member away from the middle part of the second transmission member, recessing the middle part of the second transmission member away from the middle part of the second transmission member, and intersecting and spacing the middle part of the second transmission member with the middle part of the first transmission member, when the mover of the sound production apparatus is applied to the sound production apparatus, 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 mutually multiplexed. At this time, the thickness of the sound production apparatus can be further reduced, thereby more facilitating the thin-type arrangement of the sound production apparatus.

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

[0077] In a 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 production device is applied to the sound production device, 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 size of the thickness of the sound production device can be greatly reduced, thereby being more conducive to the thin design of the sound production device.

[0078] In a possible implementation, the middle part of the first transmission member protrudes relative to the top surface of the first cross bar and the top surface of the second cross bar; and / or, the middle part of the second transmission member protrudes relative to the bottom surface of the first cross bar and the bottom surface of the second cross bar. In this way, the vibration space of the first diaphragm assembly and the vibration space of the second diaphragm assembly are relatively large.

[0079] In a possible implementation, the first cross bar includes a first sub-connection part and a second sub-connection part, the bottom surface of the second sub-connection part of the first cross bar protrudes relative to the bottom surface of the first sub-connection part of the first cross bar, the second cross bar includes a first sub-connection part and a second sub-connection part, the bottom surface of the second sub-connection part of the second cross bar protrudes relative to the bottom surface of the first sub-connection part of the second cross bar, the first end of the first transmission member is fixed to the bottom surface of the second sub-connection part of the first cross bar, and the second end of the first transmission member is fixed to the bottom surface of the second sub-connection part of the second cross bar.

[0080] And / or, the top surface of the second sub-connection part of the first cross bar protrudes relative to the top surface of the first sub-connection part of the first cross bar, the top surface of the second sub-connection part of the second cross bar protrudes relative to the top surface of the first sub-connection part of the second cross bar, the first end of the second transmission member is fixed to the top surface of the second sub-connection 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-connection 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 size of the thickness of the sound production device can be greatly reduced, thereby being more conducive to the thin design of the sound production device.

[0082] In a possible implementation, the first transmission member comprises a first plate member, a second plate member, a third plate member, a fourth plate member, and a fifth plate member, the first plate member, the second plate member, and the third plate member are connected between the fourth plate member and the fifth plate member, the second plate member is connected between the first plate member and the third plate member, the first plate member is connected to the fourth plate member, the third plate member is connected to the fifth plate member, and the second plate member protrudes relative to the same side of the fourth plate member and the fifth plate member, wherein the connection between two adjacent plate members is capable of being 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 the embodiment is relatively simple and easy to implement.

[0085] In a possible implementation, the fourth plate member is arranged at an obtuse angle with the first plate member, the first plate member is arranged at an obtuse angle with the second plate member, the second plate member is arranged at an obtuse angle with the third plate member, and the third plate member is arranged at an obtuse angle with the fifth plate member.

[0086] In a possible implementation, the connection area of the fourth plate member and the first plate member is greater than the connection area of the first plate member and the second plate member. In this way, while ensuring that the first transmission member and the second transmission member do not interfere during movement, the connection area of the fourth plate member and the first plate member of the first transmission member can be increased to a greater extent, thereby avoiding deformation of the fourth plate member and the first plate member of the first transmission member.

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

[0088] In a possible implementation, the first transmission member further comprises a first fixing member, and the first fixing member comprises a first end portion, a middle portion, and a second end portion connected in sequence. The connection between the first end portion of the first fixing member and the middle portion of the first fixing member and the connection between the second end portion of the first fixing member and the middle portion of the first fixing member are both capable of being bent.

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

[0090] It is understandable that while the first end of the first transmission member is pressed against the second plate of the first transmission member by the first plate of the first transmission member, the first fixing member is also pressed against the second plate of the first transmission member by 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 X-axis direction. In this way, the forces on the second plate of the first transmission member in the X-axis direction can largely cancel each other out. At this time, the second plate of the first transmission member is less likely to exert a force on the first diaphragm assembly in the X-axis direction. The first diaphragm assembly is less likely to bend or deform. Thus, when the first diaphragm assembly vibrates in the Z-axis direction, it is less likely to form new modes. 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 one possible implementation, the first transmission component includes a flexible component and multiple rigid patches, wherein the flexible component is an integrally formed structure and the multiple rigid patches are fixed at intervals in the middle of the flexible component.

[0092] Alternatively, the first transmission component may include multiple rigid components and multiple injection molded components, with adjacent rigid components connected by injection molded components.

[0093] It is understandable that the structure of the first transmission component in this embodiment is relatively simple and easy to implement.

[0094] In one possible implementation, the mover of the sound-generating device further includes a first voice coil or a first magnetic circuit system, which is fixed to a first crossbar; and / or, the mover of the sound-generating device further includes a second voice coil or a second magnetic circuit system, which is fixed to a second crossbar. Attached Figure Description

[0095] Figure 1A This is a schematic diagram of one embodiment of the electronic device provided in this application.

[0096] Figure 1B This is a schematic diagram of another embodiment of the electronic device provided in this application;

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

[0098] Figure 3 yes Figure 2 An exploded view of one embodiment of the sound-generating device is shown.

[0099] Figure 4 yes Figure 3 A schematic diagram of the first frame shown from another angle;

[0100] Figure 5 yes Figure 3 The diagram shows the structure of the first frame from another angle.

[0101] Figure 6 yes Figure 3 The diagram shows the structure of the first and second crossbars at another angle.

[0102] Figure 7 yes Figure 6 The diagram shows the assembly of the first crossbar, the second crossbar, the first voice coil, and the second voice coil.

[0103] Figure 8 yes Figure 3 A schematic diagram of one embodiment of the first and second transmission components shown from another angle;

[0104] Figure 9 yes Figure 8 The diagram shows the structure of the first and second transmission components at another angle.

[0105] Figure 10 yes Figure 8 An exploded view of the first transmission component shown in one embodiment;

[0106] Figure 11 yes Figure 10 The diagram shows the structure of the first transmission component.

[0107] Figure 12 yes Figure 8 The diagram shown is a structural schematic of the first transmission component in one embodiment.

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

[0109] Figure 14 yes Figure 13 A schematic diagram of part of the sound-generating device shown from another angle;

[0110] Figure 15 yes Figure 3 The diagram shown is a structural schematic of the first elastic element in one embodiment.

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

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

[0113] Figure 18 is Figure 2 a partial cross-sectional view of an embodiment of the sound production device at line A-A;

[0114] Figure 19 is Figure 3 a structural schematic view of an embodiment of the first voice coil, the first magnetic member, and the second magnetic member;

[0115] Figure 20 is Figure 3 a structural schematic view of an embodiment of the first voice coil and the first magnetic circuit system;

[0116] Figure 21 is Figure 3 a structural schematic view of an embodiment of the second frame;

[0117] Figure 22 is Figure 3 a partial structural schematic view of an embodiment of the sound production device;

[0118] Figure 23 is Figure 2 a cross-sectional view of an embodiment of the sound production device at line A-A;

[0119] Figure 24 is Figure 23 a cross-sectional view of the sound production device at another angle;

[0120] Figure 25 is Figure 3 an exploded schematic view of an embodiment of the first diaphragm assembly;

[0121] Figure 26 is Figure 3 a cross-sectional view of an embodiment of the first diaphragm assembly at line B-B;

[0122] Figure 27 is Figure 3 a structural schematic view of the first diaphragm assembly at another angle;

[0123] Figure 28 is Figure 3 a cross-sectional view of an embodiment of the sound production device;

[0124] Figure 29 is Figure 3 an exploded schematic view of an embodiment of the second diaphragm assembly;

[0125] Figure 30 is Figure 3Structure schematic view of the second diaphragm assembly in another angle;

[0126] Figure 31 is Figure 2 Sectional view of another embodiment of the sound production device at line A-A;

[0127] Figure 32 is Figure 3 Structure schematic view of another embodiment of the first transmission member and the second transmission member;

[0128] Figure 33 is Figure 2 Partial structure schematic view of another embodiment of the sound production device;

[0129] Figure 34 is Figure 3 Structure schematic view of another embodiment of the first transmission member and the second transmission member;

[0130] Figure 35 is Figure 3 Structure schematic view of another embodiment of the first transmission member and the second transmission member;

[0131] Figure 36 is Figure 3 Structure schematic view of another embodiment of the first transmission member and the second transmission member;

[0132] Figure 37 is Figure 3 Structure schematic view of another embodiment of the first transmission member;

[0133] Figure 38 is Figure 3 Partial structure schematic view of another embodiment of the first transmission member and the second transmission member;

[0134] Figure 39 is Figure 3 Structure schematic view of another embodiment of the first voice coil and the first magnetic circuit system;

[0135] Figure 40 is Figure 3 Structure schematic view of another embodiment of the first voice coil and the first magnetic circuit system;

[0136] Figure 41 is Figure 3 Structure schematic view of another embodiment of the first voice coil and the first magnetic circuit system;

[0137] Figure 42 is Figure 3 Structure schematic view of another embodiment of the first elastic member;

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

[0139] Figure 44 yes Figure 3 The diagram shown is a structural schematic of the first elastic element in another embodiment;

[0140] Figure 45 This is a schematic diagram of the structure of the third elastic element provided in one embodiment of this application;

[0141] Figure 46 yes Figure 2 The diagram shows a partial structural schematic of the sound-generating device in another embodiment.

[0142] Figure 47 This is a schematic diagram of the structure of the first reinforcing member provided in the embodiments of this application in another implementation;

[0143] Figure 48 yes Figure 3 The diagram shows a structural schematic of the first diaphragm assembly in another implementation.

[0144] Figure 49 This is a schematic diagram of the structure of the first reinforcing member provided in the embodiments of this application in another implementation;

[0145] Figure 50 This is a schematic diagram of the structure of the first reinforcing member provided in the embodiments of this application in another implementation;

[0146] Figure 51 yes Figure 3 The diagram shows a structural schematic of the first diaphragm assembly in another embodiment. Detailed Implementation

[0147] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; the word "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.

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

[0149] The positional terms mentioned in the embodiments of the present application, such as "inner", "outer", "side", "top", "bottom", and the like, are only the directions of the reference drawings, therefore, the positional terms used are for better and clearer illustration and understanding of the embodiments of the present application, and are not indicative or suggestive of the devices or elements referred to must have a particular orientation, be constructed and operated in a particular 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 explicitly specified and limited, the terms "mount", "connect", "connection", "disposed on" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection, can be direct connection, or indirect connection through an intermediate medium. Among them, "fixed connection" can be connected to each other and the relative positional relationship after connection does not change. "Movable connection" can be connected to 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, the integration structure of two components obtained by an integrated molding process means that, in the process of forming one of the two components, the component is connected together with the other component, and the two components do not need to be connected together by reprocessing (such as bonding, welding, buckle connection, screw connection) method.

[0151] In addition, in the embodiments of the present application, the mathematical concepts mentioned, parallel, perpendicular, etc. These limitations are all for the current process level, and are not strictly defined in the mathematical sense, and a small amount of deviation is allowed, approximately parallel, approximately perpendicular, etc. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B is between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B is between 80 degrees and 100 degrees.

[0152] The embodiments of the present application provide a sound generating device and an electronic device applying the sound generating device. The sound generating device adopts a structure different from that of a traditional loudspeaker. The structure of the sound generating device is relatively compact, that is, the internal space of the sound generating device can be utilized to a large extent. The electronic device can be a mobile phone, a tablet, a notebook computer, a hearing aid, a smart wearable device, and the like, which needs to output audio through the sound generating device. The smart wearable device can be a smart watch, augmented reality (AR) glasses, an AR helmet, or virtual reality (VR) glasses, etc. The sound generating device can also be a headset, a player, or the like, which can output audible sound. In addition, the sound generating device can also be applied to the fields of whole house, smart home, automobile, etc., and be used as an audio device or part of an audio device.

[0153] Figure 1A is a structural schematic view of one embodiment of the electronic device 1000 provided by the embodiment of the present application. Figure 1A The electronic device 1000 of the embodiment shown is exemplarily described by taking a mobile phone as an example.

[0154] As shown in Figure 1A , the electronic device 1000 comprises a sound emitting device 100, a housing 200 and a screen 300. Since the sound emitting device 100 is an internal component of the electronic device 1000, Figure 1A the sound emitting device 100 is schematically shown by a dashed line. It can be understood that Figure 1A and the relevant drawings hereinafter only schematically show some components comprised by the electronic device 1000, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 1A and the drawings hereinafter. In addition, when the electronic device 1000 is some other form of device, the electronic device 1000 can also not comprise the housing 200 and the screen 300.

[0155] The screen 300 is mounted on the housing 200. The screen 300 can form an inner cavity of the electronic device 1000 together with the housing 200. The sound emitting device 100 can be mounted in the inner cavity of the electronic device 1000. The housing 200 has a sound outlet 201. The sound outlet 201 communicates the inner cavity of the electronic device 1000 with the outer space of the electronic device 1000. At this time, the sound emitted by the sound emitting device 100 can be transmitted out 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 circular hole shown in the figure. The shape of the sound outlet 201 can also be a special-shaped hole. The sound outlet 201 is also not limited to Figure 1A five shown in the figure.

[0156] Figure 1B is a structural schematic view of another embodiment of the electronic device 1000 provided by the embodiment of the present application. Figure 1B The electronic device 1000 of the embodiment shown is exemplarily described by taking a notebook computer as an example.

[0157] As shown in Figure 1B , the electronic device 1000 comprises a sound emitting device 100, an input end 901 and a display end 902. Exemplarily, the input end 901 can be a device with an input component (for example, a keyboard or a touch screen). The display end 902 can be a device with a display component (for example, a display screen).

[0158] It can be understood that since the sound emitting device 100 is an internal component of the electronic device 1000, Figure 1B the sound emitting device 100 is schematically shown by a dashed line. Figure 1BThe actual shape, actual size, actual position, and actual configuration of the components of the electronic device 1000 are not limited to those shown in the drawings. The components of the electronic device 1000 can be combined with other components, or can be divided into more components. Figure 1B The drawings are defined below.

[0159] The sound generating device 100 can be mounted in the inner cavity of the input end 901. The input end 901 has a sound outlet 201. The sound outlet 201 communicates the inner cavity of the electronic device 1000 with the outer space of the electronic device 1000. At this time, the sound emitted by the sound generating device 100 can be transmitted to the outside of the electronic device 1000 through the sound outlet 201. In other embodiments, the sound generating device 100 can be mounted in the inner cavity of the display end 902.

[0160] Figure 2 is a structural schematic diagram of the sound generating device 100 in some embodiments provided by the embodiments of the present application. Figure 3 is Figure 2 is an exploded schematic diagram of the sound generating device 100 in an embodiment.

[0161] As shown in Figure 2 and Figure 3 , the sound generating device 100 includes a yoke 1, a first crossbar 2, a second crossbar 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 crossbar 2, the second crossbar 3, the first transmission member 4, the second transmission member 5, the first voice coil 6a, and the second voice coil 6b can constitute a mover of the sound generating device 100. The yoke 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 a 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. Details are not described here. Wherein, the mover refers to a structural member that can move relative to the stator.

[0163] It is 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 understood 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 element 8a, or the second elastic element 8b.

[0165] like Figure 2 and Figure 3 As shown, the basin stand 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 with reference to the relevant accompanying drawings. It will not be repeated here.

[0166] For example, the first frame 1a and / or the second frame 1b may include plastic parts and metal parts. The plastic parts and metal parts can be integrally molded into a single structure through processes such as in-mold injection molding. In this way, the first frame 1a has better structural strength. In other embodiments, the first frame 1a and / or the second frame 1b may also be made of plastic parts with high hardness, that is, without metal parts.

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

[0168] As shown in Figure 4 and Figure 5 , the first frame 1a has a first mounting space 191a, a second mounting 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 mounting space 191a and the second mounting space 192a.

[0169] As shown in Figure 4 and Figure 5 , 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 shape of the first clamping groove 196a, the second clamping groove 197a, and the third clamping groove 198a can be in the shape of a "funnel". In other embodiments, the cross-sectional shape of the first clamping groove 196a, the second clamping groove 197a, and the third clamping groove 198a can also be other shapes, such as a rectangle, an irregular shape, etc.

[0170] As shown in Figure 4 and Figure 5 , the first frame 1a is further provided with a rear vent hole 199a. The rear vent hole 199a connects the inside of the first frame 1a to the outside of the first frame 1a. It can be understood that by providing the rear vent 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 vent hole 199a of the present embodiment are not specifically limited.

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

[0172] It can be understood that one embodiment of the structure of the first mounting space 191a, the second mounting 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 vent hole 199a of the first frame 1a will be described in detail below in conjunction with the relevant drawings.

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

[0174] Exemplarily, the first end 11a of the first frame 1a comprises a top surface 111a and a bottom surface 112a arranged oppositely, and a right side surface 113a and a left side surface 114a arranged oppositely. 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 11a of the first frame 1a has a first mounting space 191a. The first mounting space 191a is open at the top surface 111a and the right side surface 113a of the first end 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 protruded from a side wall of the first mounting space 191a. The first protrusion 115a is provided with a first clamping groove 196a. The first clamping groove 196a is open at a top surface of the first protrusion 115a. The first clamping groove 196a is also open at a surface of the first protrusion 115a facing the first mounting space 191a. It can be understood that the number of the first protrusion 115a and the first clamping groove 196a is not specifically limited in the present application. In addition, one first protrusion 115a can be provided with one first clamping groove 196a, or can be provided with a plurality of first clamping grooves 196a. The specific number is not specifically limited in the present application.

[0177] As shown in Figure 4 and Figure 5 , the first end 11a of the first frame 1a also has a rear leak hole 199a. The rear leak hole 199a communicates with the first mounting space 191a. The rear leak hole 199a can be open at the left side surface 114a and the top surface 111a of the first end 11a of the first frame 1a. In other embodiments, the rear leak hole 199a can only be open at the left side surface 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 is no longer open.

[0178] Exemplarily, the second end 13a of the first frame 1a comprises a top surface 131a and a bottom surface 132a arranged oppositely, and a right side surface 133a and a left side surface 134a arranged oppositely. The top surface 131a and the bottom surface 132a are connected between the right side surface 133a and the left side surface 134a.

[0179] For example, the second end 13a of the first frame 1a has a second mounting space 192a. The second mounting space 192a forms openings on the top surface 131a and the left side surface 134a of the second end 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 protrudes from the sidewall of the second mounting space 192a. The second protrusion 135a is provided with a second locking groove 197a. The second locking groove 197a forms an opening on the top surface 131a of the second protrusion 135a. The second locking groove 197a also forms an opening on the surface of the second protrusion 135a facing the second mounting space 192a. It is understood that the number of second protrusions 135a and second locking grooves 197a is not specifically limited in this application. In addition, one second protrusion 135a may be provided with one second locking groove 197a, or multiple second locking grooves 197a may 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 also has a rear vent hole 199a. The rear vent hole 199a communicates with the second mounting space 192a. The rear vent hole 199a can form openings 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 vent hole 199a may also form an opening only on the right side 133a of the second end 13a of the first frame 1a, that is, no opening is formed on the top surface 131a of the second end 13a of the first frame 1a.

[0182] It is understood that the first end 11a and the second end 13a of the first frame 1a can be the same or similar structures, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the first end 11a and the second end 13a of the first frame 1a are symmetrical structures. The basic design of the component structure of the second end 13a of the first frame 1a, the design of the connection relationship between components, and the design of the connection relationship between components and other structures other than the assembly can all refer to the relevant schemes of the first end 11a of the first frame 1a. At the same time, it is permissible for the first end 11a and the second end 13a of the first frame 1a to have slight differences in the detailed structure or positional arrangement of the components.

[0183] like Figure 4 and Figure 5As shown, the middle portion 12a of the first frame 1a includes a first long side 121a and a second long side 122a arranged opposite to each other, and a first short side 123a and a second short side 124a arranged opposite to each other. The first short side 123a and the second short side 124a are connected between the middle portions of the first long side 121a and 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 portion 11a of the first frame 1a, and the other end is connected to the left side 134a of the second end portion 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 portion 11a of the first frame 1a, and the other end is connected to the left side 134a of the second end portion 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 can 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 can 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 can 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 locking slot 198a. In one embodiment, the number of third locking slots 198a is four. One third locking slot 198a is located at the connection between the first long side 121a and the first short side 123a, and one third locking slot 198a is located at the connection between the second long side 122a and the first short side 123a. One third locking slot 198a is located at the connection between the first long side 121a and the second short side 124a, and one third locking slot 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 locking slots 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 have a rear vent hole 199a. The rear vent hole 199a of the first long side 121a is described as an example. The rear vent hole 199a can be formed with openings on the top surface, inner surface, and outer surface of the first long side 121a. In other embodiments, the rear vent hole 199a may also be formed with openings only on the inner surface and outer surface of the first long side 121a. It is understood that the number of rear vent holes 199a on the first long side 121a is not limited to this. Figure 2 The two indicated.

[0187] Figure 6 is Figure 3 a structural schematic view of the first crossbar 2 and the second crossbar 3 at another angle.

[0188] As shown in FIG. 2, the first crossbar 2 has a first accommodating space 291 and a first limiting groove 292. Exemplarily, the cross-sectional shape of the first limiting groove 292 can be in a "funnel" shape. In other embodiments, the cross-sectional shape of the first limiting groove 292 can also be other shapes, such as a rectangle, an irregular shape, etc. It can be understood that the position, number, size and shape of the first accommodating space 291 and the first limiting groove 292 are not specifically limited. Figure 6 It can be understood that one embodiment of the structure of the first accommodating space 291 and the first limiting groove 292 will be specifically described below in combination with the relevant drawings.

[0189] As shown in FIG. 2, the first crossbar 2 includes a first end portion 21, a middle portion 22 and a second end portion 23 connected in sequence.

[0190] Figure 6 Exemplarily, the first end portion 21 of the first crossbar 2 has the first limiting groove 292. The first limiting groove 292 can form an opening on the top surface and the side surface of the first end portion 21 of the first crossbar 2. The number of the first limiting groove 292 of the first end portion 21 of the first crossbar 2 is not limited to four as shown in FIG. 2. In other embodiments, the number of the first limiting groove 292 of the first end portion 21 of the first crossbar 2 is not specifically limited.

[0191] Exemplarily, the middle portion 22 of the first crossbar 2 has the first accommodating space 291. The first accommodating space 291 can 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. Figure 6 Exemplarily, a groove or a through hole can be arranged on the middle portion 22 of the first crossbar 2 to further reduce the mass of the middle portion 22 of the first crossbar 2, thereby facilitating the lightweight setting of the first crossbar 2.

[0192] As shown in FIG. 2, 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 connects the first sub-connection portion 231. The first sub-connection portion 231 connects the middle portion 22 of the first crossbar 2.

[0193] Exemplarily, the first sub-connection portion 231 also has the first limiting groove 292. The first limiting groove 292 can form an opening on the top surface and the side surface of the first sub-connection portion 231.

[0194] Figure 6 Exemplarily, the first sub-connection portion 231 also has the first limiting groove 292. The first limiting groove 292 can form an opening on the top surface and the side surface of the first sub-connection portion 231.

[0195] Exemplarily, the first sub-connection portion 231 also has the first limiting groove 292. The first limiting groove 292 can form an opening 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 connecting portion 232 is protruded relative to the top surface 2311 of the first sub connecting portion 231. In other words, taking the bottom surface 2312 of the first sub connecting portion 231 as a reference surface, the height of the top surface 2321 of the second sub connecting portion 232 is higher than the height of the top surface 2311 of the first sub connecting portion 231. In addition, the bottom surface 2322 of the second sub connecting portion 232 is protruded relative to the bottom surface 2312 of the first sub connecting portion 231. In other words, taking the top surface 2311 of the first sub connecting portion 231 as a reference surface, the height of the bottom surface 2322 of the second sub connecting portion 232 is higher than the height of the bottom surface 2312 of the first sub connecting portion 231. The top surface 2321 and the bottom surface 2322 of the second sub connecting portion 232 are disposed away from each other in the Z-axis direction. The top surface 2311 and the bottom surface 2312 of the first sub connecting portion 231 are disposed away from each other in the Z-axis direction. In addition, the top surface 2321 of the second sub connecting portion 232 and the top surface 2311 of the first sub connecting portion 231 are towards the same side. It can be understood that the top surface 2321 of the second sub connecting portion 232 of the first cross bar 2 and the top surface 2311 of the first sub connecting portion 231 of the first cross bar 2 can constitute a top surface of the second end portion 23 of the first cross bar 2. The bottom surface 2322 of the second sub connecting portion 232 of the first cross bar 2 and the bottom surface 2312 of the first sub connecting portion 231 of the first cross bar 2 can constitute a bottom surface of the second end portion 23 of the first cross bar 2.

[0197] Exemplarily, in the Z-axis direction, the distance between the top surface 2321 of the second sub connecting portion 232 of the first cross bar 2 and the top surface 2311 of the first sub connecting portion 231 of the first cross bar 2 is within a 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 connecting portion 232 of the first cross bar 2 and the top surface 2311 of the first sub connecting portion 231 of the first cross bar 2 can 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 connecting portion 232 of the first cross bar 2 and the bottom surface 2312 of the first sub connecting portion 231 of the first cross bar 2 is within a range of 0 to 5 millimeters (mm). For example, in the Z-axis direction, the distance between the bottom surface 2322 of the second sub connecting portion 232 of the first cross bar 2 and the bottom surface 2312 of the first sub connecting portion 231 of the first cross bar 2 can be 0, 1 mm, 2 mm, 3 mm, 4 mm or 5 mm.

[0199] As Figure 6As shown, the second crossbar 3 has a second accommodating space 391 and a second limiting groove 392. Exemplarily, the cross-sectional shape of the second limiting groove 392 can be "funnel" shape. In other embodiments, the cross-sectional shape of the second limiting groove 392 can also be other shapes, such as rectangular, irregular, etc. It can be 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 can be understood that one embodiment of the structure of the second accommodating space 391 and the second limiting groove 392 will be specifically described below in combination with the relevant drawings.

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

[0202] Exemplarily, the first end portion 31 of the second crossbar 3 has the second limiting groove 392. The second limiting groove 392 can form an opening on the top surface and the side surface of the first end portion 31 of the second crossbar 3. The number of the second limiting groove 392 of the first end portion 31 of the second crossbar 3 is not limited to two as shown. Figure 6 In other embodiments, the number of the second limiting groove 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 the second accommodating space 391. The second accommodating space 391 can 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 can be provided on the middle portion 32 of the second crossbar 3 to further reduce the mass of the middle portion 32 of the second crossbar 3, thereby facilitating the lightweight setting of the second crossbar 3.

[0205] 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 connects the first sub-connection portion 331. The first sub-connection portion 331 connects the middle portion 32 of the second crossbar 3. Figure 6

[0206] Exemplarily, the first sub-connection portion 331 also has the second limiting groove 392. The second limiting groove 392 can 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 is protruded relative to the top surface 3311 of the first sub connecting portion 331. In other words, taking the bottom surface 3312 of the first sub connecting portion 331 as a reference surface, 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 is protruded relative to the bottom surface 3312 of the first sub connecting portion 331. In other words, taking the top surface 3311 of the first sub connecting portion 331 as a reference surface, 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. Wherein, in the Z-axis direction, the top surface 3321 and the bottom surface 3322 of the second sub connecting portion 332 are arranged oppositely. In the Z-axis direction, the top surface 3311 and the bottom surface 3312 of the first sub connecting portion 331 are arranged oppositely. The top surface 3321 of the second sub connecting portion 332 and the top surface 3311 of the first sub connecting portion 331 are arranged towards the same side. It can be understood that the top surface 3321 of the second sub connecting portion 332 of the second cross bar 3 and the top surface 3311 of the first sub connecting portion 331 of the second cross bar 3 can constitute the top surface of the second end portion 33 of the second cross bar 3. The bottom surface 3322 of the second sub connecting portion 332 of the second cross bar 3 and the bottom surface 3312 of the first sub connecting portion 331 of the second cross bar 3 can constitute the bottom surface of the second end portion 33 of the second cross bar 3.

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

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

[0210] It can be understood that the first crossbar 2 and the second crossbar 3 can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In the present embodiment, the first crossbar 2 and the second crossbar 3 are symmetrical structure, the basic design of the component structure of the second crossbar 3, the connection relationship design between the components, and the connection relationship design of the components and other structures outside the assembly can refer to the related schemes of the first crossbar 2, and at the same time, 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 is Figure 6 the first crossbar 2, the second crossbar 3 and the first voice coil 6a and the second voice coil 6b are shown in the assembly schematic view.

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

[0213] Exemplarily, the winding plane of the first voice coil 6a is substantially parallel to the plane where the middle part 22 of the first crossbar 2 is located. In other words, the first voice coil 6a can be placed flat in the first accommodating space 291 of the first crossbar 2. In this way, it is beneficial to realize the thin type setting of the sound generating device 100.

[0214] Exemplarily, the first voice coil 6a includes a first long strip segment 61a and a second long strip segment 62a arranged oppositely, and a first short strip segment 63a and a second short strip segment 64a arranged oppositely. The first short strip segment 63a and the second short strip segment 64a of the first voice coil 6a are connected between the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a.

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

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

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

[0218] For example, when the first voice coil 6a is installed in the first accommodating space 291 of the first crossbar 2, the length direction of the first voice coil 6a (that is, the length extension direction of the first long strip 61a or the length extension direction of the second long strip 62a) is substantially perpendicular to the length direction of the first crossbar 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. This helps to avoid unnecessary structures in the middle portion 22 of the first crossbar 2, thereby facilitating a lightweight design of the first crossbar 2.

[0220] like Figure 6 and Figure 7 As shown, the second voice coil 6b is installed within the second accommodating space 391 of the second crossbar 3. It is understood that the second voice coil 6b and the first voice coil 6a can have the same or similar structure, be symmetrical or partially symmetrical, or have different structures. 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 design of the connection relationships between components, and the design of the connection relationships between components and other structures outside the assembly can all refer to the relevant scheme of the first voice coil 6a. At the same time, slight differences in the detailed structure or positional arrangement of components are allowed between the second voice coil 6b and the first voice coil 6a. Specific details will not be elaborated further in this application.

[0221] Figure 8 yes Figure 3 The diagram shows a structural embodiment of the first transmission member 4 and the second transmission member 5 from another angle. Figure 9 yes Figure 8 The diagram shows the structure of the first transmission component 4 and the second transmission component 5 at another angle.

[0222] like Figure 8 and Figure 9 As shown, the first transmission member 4 includes a first end 41, a middle portion 42, and a second end 43 connected in sequence. In other words, the middle portion 42 of the first transmission member 4 connects the first end 41 and the second end 43. The middle portion 42 of the first transmission member 4 protrudes to the same side as both the first end 41 and the second end 43. The first transmission member 4 is generally shaped like a "boss". Exemplarily, the connection between the first end 41 and the middle portion 42 of the first transmission member 4 is a first bend. The connection between the second end 43 and the middle portion 42 of the first transmission member 4 is a second bend. Both the first and second bends are bendable.

[0223] Exemplarily, the middle portion 42 of the first transmission member 4 comprises a first connecting member 44. The number of the first connecting member 44 can be one or more. Hereinafter, the case that the number of the first connecting member 44 is one is described as an example. The structure that the number of the first connecting member 44 is more will be described in detail in combination with relevant drawings. Here, no longer be described.

[0224] As shown in Figure 8 and Figure 9 , the first connecting member 44 comprises a first plate member 441, a second plate member 442 and a third plate member 443 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 folded towards the same side of the second plate member 442. The first connecting member 44 is substantially in the shape of “(”. Among them, the first plate member 441 connects the first end portion 41 of the first transmission member 4. The third plate member 443 connects the second end portion 43 of the first transmission member 4. In addition, the connection between the first plate member 441 and the second plate member 442 is a third bending portion. The connection 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 the fourth plate member. The second end portion 43 of the first transmission member 4 can also be referred to as the 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 between the first plate member 441 and the second plate member 442 (i.e. the third bending portion) 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 between the third plate member 443 and the second plate member 442 (i.e. the fourth bending portion) 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 between the first plate member 441 and the first end portion 41 of the first transmission member 4 (i.e. the first bending portion) 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 between the first plate member 441 and the second end portion 43 of the first transmission member 4 (i.e. the second bending portion) is bent, the fourth included angle d can increase or decrease.

[0229] Several embodiments of the first transmission member 4 will be described in detail below in conjunction with relevant drawings. It should be understood that the specific structure of the first transmission member 4 is not limited to the several structures described below. Any first transmission member 4 capable of achieving the movement described above is within the protection scope of the present application.

[0230] Figure 10 is an exploded schematic view of the first transmission member 4 in an embodiment. Figure 8 is a structural schematic view of the first transmission member 4. Figure 11 is a structural schematic view of the first transmission member 4. Figure 10 As shown in

[0231] As shown in Figure 10 The first transmission member 4 includes a flexible member 45 and a plurality of hard patches 46. Figure 11 Exemplarily, the flexible member 45 is an integrally formed structural member. Exemplarily, the flexible member 45 can be a nylon mesh, a metal mesh, a film material, rubber, or a metal foil, etc.

[0232] Exemplarily, the flexible member 45 includes a first end portion 451, a middle portion 452, and a second end portion 453. The middle portion 452 of the flexible member 45 protrudes to the same side of the first end portion 451 and the second end portion 453 of the flexible member 45. The flexible member 45 is generally in the shape of a “boss”. The connection between the first end portion 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 portion 453 and the middle portion 452 of the flexible member 45 forms a second bending portion of the first transmission member 4.

[0233] Exemplarily, the middle portion 452 of the flexible member 45 includes a first connecting portion 454. The number of the first connecting portion 454 can be one or multiple. The number of the first connecting portion 454 is one will be described below. The structure of the number of the first connecting portion 454 being multiple will be described in detail below in conjunction with relevant drawings. Herein, no further description is provided.

[0234]

[0235] ​The first connecting portion 454 includes a first sub-portion 4541, a second sub-portion 4542, and a third sub-portion 4543 connected sequentially. In other words, the second sub-portion 4542 connects between the first sub-portion 4541 and the third sub-portion 4543. Both the first sub-portion 4541 and the third sub-portion 4543 protrude towards the same side of the second sub-portion 4542. The middle portion 452 of the flexible member 45 is approximately "﹝". The first sub-portion 4541 connects to the first end portion 451 of the flexible member 45. The third sub-portion 4543 connects to the second end portion 453 of the flexible member 45. The connection between the first sub-portion 4541 and the second sub-portion 4542 forms the third bend of the first transmission member 4. The connection between the second sub-portion 4542 and the third sub-portion 4543 forms the fourth bend of the first transmission member 4.

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

[0237] like Figure 10 and Figure 11 As shown, a first rigid patch 461 can be fixed to the first surface of the first sub-part 4541 of the flexible member 45. A second rigid patch 462 can be fixed to the first surface of the second sub-part 4542 of the flexible member 45. A third rigid patch 463 can be fixed to the first surface of the third sub-part 4543 of the flexible member 45. In other words, the flexible member 45 can achieve single-sided mounting of rigid patches. The first rigid patch 461 and the second rigid patch 462 are spaced apart, forming a first gap. The first gap is directly opposite the connection point between the first sub-part 4541 and the second sub-part 4542. The second rigid patch 462 and the third rigid patch 463 are spaced apart, forming a second gap. The second gap is directly opposite the connection point between the second sub-part 4542 and the third sub-part 4543.

[0238] It can be understood that the first rigid patch 461 can be used to increase the strength of the first sub-portion 4541 of the flexible member 45. The second rigid patch 462 can be used to increase the strength of the second sub-portion 4542 of the flexible member 45. The third rigid patch 463 can be used to increase the strength of the third sub-portion 4543 of the flexible member 45. In addition, since the joint between the first sub-portion 4541 and the second sub-portion 4542 is opposite to the first gap between the first rigid patch 461 and the second rigid patch 462, the joint between the second sub-portion 4542 and the third sub-portion 4543 is opposite to the second gap between the second rigid patch 462 and the third rigid patch 463, the joint between the first sub-portion 4541 and the second sub-portion 4542, and the joint between the second sub-portion 4542 and the third sub-portion 4543 retain the original flexibility. In this way, the joint between the first sub-portion 4541 and the second sub-portion 4542 can be bent. The joint 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 rigid patch 461 can constitute the first plate member 441 of the first transmission member 4 (see Figure 8 and Figure 9 ). The second sub-portion 4542 of the flexible member 45 and the second rigid patch 462 can constitute the second plate member 442 of the first transmission member 4 (see Figure 8 and Figure 9 ). The third sub-portion 4543 of the flexible member 45 and the third rigid patch 463 can constitute the third plate member 443 of the first transmission member 4 (see Figure 8 and Figure 9 ).

[0240] In other embodiments, the first rigid patch 461 can also be fixed on the second face of the first sub-portion 4541 of the flexible member 45. The second rigid patch 462 can also be fixed on the second face of the second sub-portion 4542 of the flexible member 45. The third rigid patch 463 can also be fixed on the second face of the third sub-portion 4543 of the flexible member 45. The specific application is not limited. Among them, the second face of the first sub-portion 4541 of the flexible member 45 is arranged opposite to the first face of the first sub-portion 4541 of the flexible member 45. The second face of the second sub-portion 4542 of the flexible member 45 is arranged opposite to the first face of the second sub-portion 4542 of the flexible member 45. The second face of the third sub-portion 4543 of the flexible member 45 is arranged opposite to the first face of the third sub-portion 4543 of the flexible member 45.

[0241] In other embodiments, the rigid patch 46 can further include a fourth rigid patch (not shown), a fifth rigid patch (not shown), and a sixth rigid patch (not shown). The fourth rigid patch is fixed to the first face and the second face of the first sub-portion 4541 of the flexible member 45 respectively with the first rigid patch 461. The fifth rigid patch is fixed to the first face and the second face of the second sub-portion 4542 of the flexible member 45 respectively with the second rigid patch 462. The sixth rigid patch is fixed to the first face and the second face of the third sub-portion 4543 of the flexible member 45 respectively with the third rigid patch 463. In this way, the flexible member 45 can realize double-sided mounting of rigid patches. Among them, the fourth rigid patch and the fifth rigid patch are arranged at intervals, that is, there is a gap between the fourth rigid patch and the fifth rigid patch. The fifth rigid patch and the sixth rigid patch are arranged at intervals, that is, there is a gap between the fifth rigid patch and the sixth rigid patch. It can be understood that the fourth rigid patch can be used to further improve the strength of the first sub-portion 4541 of the flexible member 45. The fifth rigid patch can be used to further improve the strength of the second sub-portion 4542 of the flexible member 45. The sixth rigid patch can be used to further improve the strength of the third sub-portion 4543 of the flexible member 45.

[0242] As shown in Figure 11 the end of the first rigid patch 461 facing the second rigid patch 462 can 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 rigid patch 461 facing the second rigid patch 462 is roughly wedge-shaped.

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

[0244] It can be understood that the arrangement of the end of the second rigid patch 462 facing the third rigid patch 463 can also refer to the arrangement of the end of the first rigid patch 461 facing the second rigid patch 462. The arrangement of the end of the third rigid patch 463 facing the second rigid patch 462 can also refer to the arrangement of the end of the second rigid patch 462 facing the first rigid patch 461. Details are not described here.

[0245] Figure 12 yes Figure 8 The diagram shows the structure of the first transmission component 4 in one embodiment.

[0246] like Figure 12 As shown, the first transmission component 4 includes multiple rigid components 47a and multiple injection molded components 47b, and two adjacent rigid components 47a are connected by injection molded components 47b.

[0247] For example, the plurality of hard components 47a include a first hard component 471a, a second hard component 472a, a third hard component 473a, a fourth hard component 474a, and a fifth hard component 475a.

[0248] The multiple 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 rigid member 471a and the second rigid member 472a. The second flexible member 472b connects the second rigid member 472a and the third rigid member 473a. The third flexible member 473b connects the third rigid member 473a and the fourth rigid member 474a. The fourth flexible member 474b connects the fourth rigid member 474a and the fifth rigid member 475a.

[0250] For example, the first rigid component 471a, the second rigid component 472a, the third rigid component 473a, the fourth rigid component 474a, and the fifth rigid component 475a can be made of metal plates such as aluminum plates or steel plates, or they can be made of 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 can be made of silicone rubber, etc.

[0251] It is understood that the first flexible member 471b can be formed between the first rigid member 471a and the second rigid member 472a through injection molding. The ends of the first rigid member 471a and the second rigid member 472a can be embedded in the first flexible member 471b. The configuration of the second flexible member 472b, the third flexible member 473b, and the fourth flexible member 474b can be found in the configuration of the first flexible member 471b. Specific details will not be elaborated here.

[0252] Understandably, the first rigid component 471a can constitute the first end 41 of the first transmission component 4. The second rigid component 472a, the third rigid component 473a, and the fourth rigid component 474a can constitute the middle portion 42 of the first transmission component 4. The fifth rigid component 475a can constitute the second end 43 of the first transmission component 4. The first flexible component 471b can constitute the first bent portion of the first transmission component 4. The second flexible component 472b can constitute the third bent portion of the first transmission component 4. The third flexible component 473b can constitute the fourth bent portion of the first transmission component 4. The fourth flexible component 474b can constitute the second bent portion of the first transmission component 4.

[0253] The structure of the first transmission component 4 has been described in detail above with reference to the accompanying drawings. The structure of the second transmission component 5 will be described in detail below with reference to the accompanying drawings.

[0254] like Figure 8 and Figure 9 As shown, the second transmission member 5 includes a first end portion 51, a middle portion 52, and a second end portion 53 connected in sequence. The middle portion 52 of the second transmission member 5 is recessed on the same side as the first end portion 51 and the second end portion 53. Furthermore, the middle portion 52 of the second transmission member 5 is provided with a second clearance hole 544. Exemplarily, the connection between the first end portion 51 and the middle portion 52 of the second transmission member 5 is the first bent portion of the second transmission member 5. The connection between the second end portion 53 and the middle portion 52 of the second transmission member 5 is the second bent portion of the second transmission member 5. Both the first bent portion and the second bent portion of the second transmission member 5 are bendable.

[0255] For example, the middle portion 52 of the second transmission member 5 includes a second connecting member 54. The number of second connecting members 54 can be one or more. The following description assumes that there are two second connecting members 54. Further details regarding the structure of the second transmission member 5 will be described in more detail below with reference to the accompanying drawings. These details will not be repeated here.

[0256] It is understood that the second connecting member 54 of the second transmission member 5 and the first connecting member 44 of the first transmission member 4 can have the same or similar structure, a symmetrical or partially symmetrical structure, or a different structure. In this embodiment, the second connecting member 54 of the second transmission member 5 and the first connecting member 44 of the first transmission member 4 have the same structure. The basic design of the component structure of the second connecting member 54 of the second transmission member 5, the design of the connection relationship between components, and the design of the connection relationship between components and other structures other than 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, it is permissible for the second connecting member 54 of the second transmission member 5 and the first connecting member 44 of the first transmission member 4 to have slight differences in the detailed structure or positional arrangement of the components.

[0257] like Figure 8 and Figure 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 is lower than the first plate 541 and the third plate 543 of the second connecting member 54. In addition, the first plate 541 of the second connecting member 54 and the second plate 542 of the second connecting member 54 form a third bending portion. The second plate 542 of the second connecting member 54 and the third plate 543 of the second connecting member 54 form a fourth bending portion. The third bending portion and the fourth bending portion are capable of bending. In addition, two adjacent second connecting members 54 can be spaced apart. The space between the two second connecting members 54 forms a second avoiding hole 544.

[0258] It can be understood that the specific structure of the second transmission member 5 can refer to the specific structure of the first transmission member 4 (for example Figures 10 to 12 the embodiment shown). Specifically, it will not be described here. It can be understood that as long as the second transmission member 5 can realize the movement introduced above, it is within the protection scope of the present application.

[0259] Figure 13 is Figure 2 a partial structure schematic diagram of an embodiment of the sound generating device 100. Figure 14 is Figure 13 a structure schematic diagram of the partial sound generating device 100 from another angle.

[0260] Please refer to Figure 13 and Figure 14 , and combine 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-connecting portion 232 of the second end 23 of the first cross rod 2. The second end 53 of the second transmission member 5 is fixed to the top surface 3321 of the second sub-connecting portion 332 of the second end 33 of the second cross rod 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 cross rod 2 and the bottom surface 3322 of the second sub-connecting portion 332 of the second cross rod 3.

[0262] In other embodiments, when the second end 23 of the first crossbar 2 is of other structure (e.g. the second end 23 of the first crossbar 2 does not include the second sub-connection portion 232), the first end 51 of the second transmission member 5 can be fixed on the top 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 of other structure (e.g. the second end 33 of the second crossbar 3 does not include the second sub-connection portion 332), the first end 51 of the second transmission member 5 can be fixed on the top surface of the first sub-connection portion 331 of the second end 33 of the second crossbar 3.

[0263] Referring to Figure 13 and Figure 14 , and in combination with Figures 6 to 9 , the first end 41 of the first transmission member 4 is fixed on 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 on 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 is convex relative to the top surface 2321 of the second sub-connection portion 232 of the first crossbar 2 and the top surface 3321 of the second sub-connection portion 332 of the second crossbar 3.

[0265] In other embodiments, when the second end 23 of the first crossbar 2 is of other structure (e.g. the second end 23 of the first crossbar 2 does not include the second sub-connection portion 232), the first end 41 of the first transmission member 4 can be fixed on 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 of other structure (e.g. the second end 33 of the second crossbar 3 does not include the second sub-connection portion 332), the first end 41 of the first transmission member 4 can be fixed on the bottom surface of the first sub-connection portion 331 of the second end 33 of the second crossbar 3.

[0266] Referring to Figure 13 and Figure 14 , the middle portion 42 of the first transmission member 4 passes through the second avoiding hole 544 of the second transmission member 5. In Figure 13 , the middle portion 42 of the first transmission member 4 is convex towards away from the middle portion 52 of the second transmission member 5. The middle portion 52 of the second transmission member 5 is concave towards away from the middle portion 42 of the first transmission member 4. In Figure 14 , the middle portion 42 of the first transmission member 4 is opposite to the relative convex or concave of the middle portion 52 of the second transmission member 5. In this way, the middle portion 52 of the second transmission member 5 is crossed and spaced apart from the middle portion 42 of the first transmission member 4.

[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 avoiding 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 cross bar 2 and the second cross bar 3. The second plate 542 of the middle portion 52 of the second transmission member 5 is located at the bottom of the first cross bar 2 and the second cross bar 3.

[0268] Please refer to Figure 13 and Figure 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 do not 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 do not interfere with each other.

[0269] Figure 15 is Figure 3 The first elastic member 8a shown in the structural schematic diagram of an embodiment.

[0270] As Figure 8 shown, the first elastic member 8a can be a one-piece structure. 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 connected in sequence. Among them, 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 oppositely arranged. The third inner surface 843a and the fourth inner surface 844a are oppositely arranged.

[0273] Exemplarily, the wall surface of the first space 84a is rhombic, that is, the first inner surface 841a, the second inner surface 842a, the third inner surface 843a, and the fourth inner surface 844a enclose 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 can also enclose a circle, a semicircle, or a semirhombus.

[0274] Exemplarily, the first inner surface 841a, the second inner surface 842a, the third inner surface 843a and the fourth inner surface 844a can be arc surfaces. The middle portions of the first inner surface 841a, the second inner surface 842a, the third inner surface 843a and the fourth inner surface 844a can be convex to the first space 84a.

[0275] In other embodiments, the first elastic member 8a can also have other structures. More structures of the first elastic member 8a will be described in detail below in combination with relevant drawings. Here, no further description is given.

[0276] It can be understood that the second elastic member 8b and the first elastic member 8a can have the same or similar structure, a symmetrical or partially symmetrical structure, or different structures. In the present embodiment, the first elastic member 8a and the second elastic member 8b have a symmetrical structure. The basic design of the component structure of the second elastic member 8b, the connection relationship design between components, and the connection relationship design of components and other structures outside the assembly can be referred to the relevant solutions of the first elastic member 8a, while allowing the first elastic member 8a and the second elastic member 8b to have some differences in the detailed structure or position arrangement of components. No specific description is given here for the structure of the second elastic member 8b.

[0277] Figure 16 is Figure 2 a partial structural schematic diagram of an embodiment of the sound production device 100.

[0278] Please refer to Figure 16 , and in combination with Figure 15 It is shown that 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 rod 2. It can be understood that, due to the deformation of the first elastic member 8a under external force, the first cross rod 2 can move relative to the first frame 1a through the first elastic member 8a, that is, the first cross rod 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 clamping 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 cross rod 2. Among them, the first end 81a of the first elastic member 8a can be tightly fitted with the first clamping groove 196a of the first frame 1a. The second end 83a of the first elastic member 8a can also be tightly fitted with the first limiting groove 292 of the first cross rod 2. In this way, the first elastic member 8a can be stably connected with the first frame 1a and the first cross rod 2.

[0280] Exemplarily, the number of the first elastic members 8a can be four. Two of the first elastic members 8a can be connected between the first end 11a of the first frame 1a and the first end 21 of the first crossbar 2. The other two of the first elastic members 8a can 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 as a rhombus, the connection stability of the first elastic member 8a with the first frame 1a and the first crossbar 2 is improved.

[0282] As shown in Figure 16 , the second crossbar 3 can be movably connected with the first frame 1a through the second elastic member 8b. The connection mode of the second elastic member 8b with the second crossbar 3 and the first frame 1a can refer to the connection mode of the first elastic member 8a with the first crossbar 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 crossbar 3. Among them, the first end 81b of the second elastic member 8b can be tightly fitted 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 fitted with the second limiting groove 392 of the second crossbar 3. Details are not described here.

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

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

[0285] In addition, when the second crossbar 3 is movably connected to the first frame la by the second elastic member 8b, the first end portion 31 of the second crossbar 3 can be located in the second mounting space 192a of the first frame la. At least part of the middle portion 32 of the second crossbar 3 can be located in the third hollowed-out area 195a of the first frame la. At least part of the second end portion 33 of the second crossbar 3 can be located in the first hollowed-out area 193a of the first frame la.

[0286] It can be understood that, since at least part of the second end portion 23 of the first crossbar 2 can be located in the first hollowed-out area 193a of the first frame la, at least part of the second end portion 33 of the second crossbar 3 can be located in the first hollowed-out area 193a of the first frame la, so that at least part of the first transmission member 4 and the second transmission member 5 connected between the second end portion 23 of the first crossbar 2 and the second end portion 33 of the second crossbar 3 can be located in the first hollowed-out area 193a of the first frame la.

[0287] Figure 17 is Figure 2 a partial structure diagram of the sound production device 100. Figure 18 is Figure 2 a partial cross-sectional view of an embodiment of the sound production device 100 at the A-A line.

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

[0289] As Figure 17 and Figure 18As shown, the first magnetic member 71a and the first magnetic conductive member 73a 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 the first voice coil 6a can drive the first horizontal rod 2 to move along the X-axis direction (including the positive direction and the negative direction of the X-axis) under the action of the first Ampere force. It can be understood that the first magnetic conductive member 73a can be used to improve 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 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 the first voice coil 6a can drive the first horizontal rod 2 to move along the X-axis direction (including the positive direction and the negative direction of the X-axis) under the action of the second Ampere force. It can be understood that the second magnetic conductive member 74a can be used to improve 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 can be understood that the direction of the first Ampere force and the second Ampere force on the first voice coil 6a can be made the same 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 horizontal rod 2 to move in the same direction. In addition, the direction of the first Ampere force and the second Ampere force can be changed at the same time by changing the current direction of the first voice coil 6a, so that the first voice coil 6a can drive the first horizontal rod 2 to move along the positive direction 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 horizontal rod 2 to move along 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 horizontal rod 2 to move along the negative direction of the X-axis under the action of the first Ampere force and the second Ampere force.

[0292] It is understood that in this embodiment, the first voice coil 6a employs two magnetic components (first magnetic component 71a and second magnetic component 72a) in cooperation, thereby enabling the first crossbar 2 to obtain two driving forces (first Ampere force and second Ampere force). This allows the first crossbar 2 to achieve a greater stroke in the X-axis direction.

[0293] It is understood that there are various arrangements of the structure of the first magnetic element 71a and the second magnetic element 72a. As long as the directions of the first and second Ampere forces are the same, the structures of the first magnetic element 71a and the second magnetic element 72a are within the scope of protection of this application. The following describes one specific structure of the first magnetic element 71a and the second magnetic element 72a. More structures of the first magnetic element 71a and the second magnetic element 72a will be described in detail below with reference to the accompanying drawings. They will not be elaborated upon here.

[0294] Figure 19 yes Figure 3 The diagram shows a structural schematic of one embodiment of the first voice coil 6a, the first magnetic element 71a, and the second magnetic element 72a. Figure 20 yes Figure 3 A schematic diagram of one embodiment of the first voice coil 6a and the first magnetic circuit system 7a shown.

[0295] like Figure 19 and Figure 20 As shown, the first magnetic element 71a is a Hellbeck magnet array. For example, the first magnetic element 71a includes a first magnet 711a, a second magnet 712a, a third magnet 713a, a fourth magnet 714a, and a fifth magnet 715a. 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, with the first magnet 711a closer to the fourth magnet 714a and the second magnet 712a closer to the fifth magnet 715a. In other embodiments, when the first magnetic element 71a is a Hellbeck magnet structure, the first magnetic element 71a may also include more or fewer structures. For example, the first magnetic element 71a may also not include the third magnet 713a and / or the fourth magnet 714a and / or the fifth magnet 715a. Specific details will not be elaborated here.

[0296] 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 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 of the north pole (N) towards the south pole (S), or the direction of the south pole (S) towards 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 can be understood that the second magnetic member 72a and the first magnetic member 71a can be the same or similar structure, symmetric or partially symmetric structure, or different structure. In the 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 same contents of the second magnetic member 72a and the first magnetic member 71a include that the second magnetic member 72a also includes five magnets, and the polarization directions of the second magnet 722a and the third magnet 723a of the second magnetic member 72a are the same as the polarization directions of the first magnet 711a and the second magnet 712a of the first magnetic member 71a. The different contents of the second magnetic member 72a and the first magnetic member 71a include 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] Please refer to Figure 19 and Figure 20 in combination with Figure 18As shown, the first magnet 711a of the first magnetic element 71a can be positioned opposite to the first elongated segment 61a of the first voice coil 6a. The second magnet 712a of the first magnetic element 71a can be positioned opposite to the second elongated segment 62a of the first voice coil 6a. Since the polarization direction of the first magnet 711a of the first magnetic element 71a is the negative Z-axis direction, and the polarization direction of the second magnet 712a of the first magnetic element 71a is the positive Z-axis direction, the polarization directions of both the first magnet 711a and the second magnet 712a of the first magnetic element 71a are perpendicular to the winding plane of the first voice coil 6a. Thus, when the first voice coil 6a is energized, the current direction of the first elongated segment 61a of the first voice coil 6a is opposite to the current direction of the second elongated segment 62a of the first voice coil 6a. The direction of the first Ampere force generated by the first elongated segment 61a and the second elongated 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] Please see Figure 19 and Figure 20 and combined Figure 18 As shown, the first magnet 721a of the second magnetic element 72a is positioned opposite to the first elongated segment 61a of the first voice coil 6a. The second magnet 722a of the second magnetic element 72a is positioned opposite to the second elongated segment 62a of the first voice coil 6a. Since the polarization direction of the first magnet 721a of the second magnetic element 72a is also in the negative Z-axis direction, and the polarization direction of the second magnet 722a of the second magnetic element 72a is also in the positive Z-axis direction, both the first magnet 721a and the second magnet 722a of the second magnetic element 72a are perpendicular to the winding plane of the first voice coil 6a. Thus, when the first voice coil 6a is energized, the current direction of the first elongated segment 61a of the first voice coil 6a is opposite to the current direction of the second elongated segment 62a of the first voice coil 6a. The direction of the first Ampere force generated by the first elongated segment 61a and the second elongated 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.

[0301] like Figure 17 and Figure 18 As shown, the second magnetic circuit system 7b also includes a first magnetic circuit assembly 70C and a second magnetic circuit assembly 70D. The first magnetic circuit assembly 70C can be fixed to the top surface of the second end 13a of the first frame 1a. The second magnetic circuit assembly 70D can be fixed to the bottom surface of the second end 13a of the first frame 1a. The first magnetic circuit assembly 70C and the second magnetic circuit assembly 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 assembly 70C and the second magnetic circuit assembly 70D, and under the action of the Ampere force, it can drive the second crossbar 3 to move along the X-axis direction.

[0302] It is understood that the second magnetic circuit system 7b and the first magnetic circuit system 7a can have the same or similar structure, be symmetrical or partially symmetrical, or have different structures. In this embodiment, the second magnetic circuit system 7b and the first magnetic circuit system 7a are symmetrical structures. The basic design of the component structure of the second magnetic circuit system 7b, the design of the connection relationship between the components, and the design of the connection relationship between the components and other structures outside the assembly can all refer to the relevant scheme of the first magnetic circuit system 7a. At the same time, it is permissible for the second magnetic circuit system 7b and the first magnetic circuit system 7a to have slight differences in the detailed structure or positional arrangement of the components.

[0303] Please refer to it again. Figure 19 and Figure 20 The fourth magnet 714a and / or the fifth magnet 715a of the first magnetic element 71a are provided with a first clearance notch 710a. The description will take the fifth magnet 715a being provided with the first clearance notch 710a as an example. Thus, when the fifth magnet 715a of the first magnetic element 71a is provided with the first clearance notch 710a, the height of the fifth magnet 715a in the Z-axis direction is less than the height of the second magnet 712a in the Z-axis direction of the first magnetic element 71a.

[0304] For example, the fourth magnet 724a and / or the fifth magnet 725a of the second magnetic element 72a are provided with a second clearance notch 720a. The description will take the provision of the second clearance notch 720a on the fifth magnet 725a as an example. Thus, when the fifth magnet 725a of the second magnetic element 72a is provided with the second clearance notch 720a, the height of the fifth magnet 725a in the Z-axis direction is less than the height of the second magnet 722a in the Z-axis direction of the second magnetic element 72a.

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

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

[0307] like Figure 21 and Figure 22 As shown, the second frame 1b can be ring-shaped. The second frame 1b encloses a hollow area 11b. The second frame 1b is fixed to 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] Figure 23 yes Figure 2A cross-sectional view of one embodiment of the sound production device 100 at the line A-A. Figure 24 Figure 23 A cross-sectional view of the sound production device 100 at another angle. Exemplarily, Figure 24 Figure 23 A schematic view of the sound production device 100 rotated 180° around the X-axis.

[0309] As shown in Figs. 1 and 2, 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. Figure 23 Figure 24 It can be understood that when the first cross bar 2 and the second cross bar 3 are arranged on the first frame 1a, the top of the first cross bar 2 and the second cross bar 3 is an open area. Therefore, during the assembly of the first cross bar 2, 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 do not easily 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 low.

[0310] In addition, the present embodiment can detachably connect the second frame 1b on the top of the first frame 1a, and the second frame 1b is annular, so that 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.

[0311] It can be understood that the present embodiment can ensure that the first cross bar 2, the second cross bar 3 and the first frame 1a do not easily interfere with each other during the assembly of the first cross bar 2, the second cross bar 3 and the first frame 1a, 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.

[0312] It can be understood that the present embodiment can ensure that the first cross bar 2, the second cross bar 3 and the first frame 1a do not easily interfere with each other during the assembly of the first cross bar 2, the second cross bar 3 and the first frame 1a, 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.

[0312] As shown in Figs. 1 and 2, 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 basket 1 enclose a rear cavity 9c. The first transmission member 4 and the second transmission member 5 can be located in the rear cavity 9c.

[0313] Figure 23 Figure 24 It can be understood that the present embodiment can ensure that the first cross bar 2, the second cross bar 3 and the first frame 1a do not easily interfere with each other during the assembly of the first cross bar 2, the second cross bar 3 and the first frame 1a, 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.

[0314] ​​​Exemplarily, the periphery of the second diaphragm assembly 9b can be fixed on the first long side 121a (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 ) of the middle part 12a of the first frame 1a. 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, so as to ensure that the second diaphragm assembly 9b can be stably and firmly connected on the first frame 1a.

[0315] As shown in Figure 23 and Figure 24 , the middle part 42 of the first transmission member 4 protrudes towards the first diaphragm assembly 9a relative to the two ends of the first transmission member 4, and is connected on the first diaphragm assembly 9a. Exemplarily, the second plate 442 of the middle part 42 of the first transmission member 4 can be fixed on the first diaphragm assembly 9a through a glue layer.

[0316] As shown in Figure 23 and Figure 24 , the middle part 52 of the second transmission member 5 is recessed towards the second diaphragm assembly 9b relative to the two ends of the second transmission member 5, and is connected on the second diaphragm assembly 9b. Exemplarily, the second plate 542 of the middle part 52 of the second transmission member 5 can be fixed on the second diaphragm assembly 9b through a glue layer.

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

[0318] The structure of the sound generating device 100 is specifically described above in combination with the related drawings. The sound generating principle of the sound generating device 100 will be specifically described below in combination with the related drawings.

[0319] Firstly, the sound generating principle of the first diaphragm assembly 9a will be described in combination with the related drawings.

[0320] Please refer to Figure 23 and Figure 24 , and combine Figure 18As shown, when a 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 can drive the first cross bar 2 to move along the positive direction of the X axis under the action of the Ampere force. When the first cross bar 2 exerts a first force along the positive direction of the X axis on the first end portion 41 of the first transmission member 4, the first end portion 41 of the first transmission member 4 can move along the positive direction of the X axis, and the first end portion 41 of the first transmission member 4 can press the second plate member 442 through the first plate member 441. It can be understood that the first plate member 441 can change the direction of the first force, so that the second plate member 442 can be subjected to a force along the positive direction of the Z axis. In addition, when a 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 can drive the second cross bar 3 to move along the negative direction of the X axis under the action of the Ampere force. When the second cross bar 3 exerts a second force along the negative direction of the X axis on the second end portion 43 of the first transmission member 4, the second end portion 43 of the first transmission member 4 can move along the negative direction of the X axis, and the second end portion 43 of the first transmission member 4 can press the second plate member 442 through the third plate member 443. It can be understood that the third plate member 443 can change the direction of the second force, so that the second plate member 442 can be subjected to a force along the positive direction of the Z axis. Since the second plate member 442 is fixed on the first diaphragm assembly 9a, the second plate member 442 can drive the first diaphragm assembly 9a to move along the positive direction of the Z axis under the action of the two forces along the positive direction of the Z axis.

[0321] Please refer to Figure 23 and Figure 24 , and in combination with Figure 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 the first horizontal rod 2 can be driven to move along the negative direction of the X axis under the action of the Ampere force. When the first horizontal rod 2 exerts a third acting force along the negative direction of the X axis on the first end portion 41 of the first transmission member 4, the first end portion 41 of the first transmission member 4 can move along the negative direction of the X axis, and the first end portion 41 of the first transmission member 4 can pull the second plate member 442 through the first plate member 441. It can be understood that the first plate member 441 can change the direction of the third acting force, so that the second plate member 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 the second horizontal rod 3 can be driven to move along the positive direction of the X axis under the action of the Ampere force. When the second horizontal rod 3 exerts a fourth acting force along the positive direction of the X axis on the second end portion 43 of the first transmission member 4, the second end portion 43 of the first transmission member 4 can move along the positive direction of the X axis, and the second end portion 43 of the first transmission member 4 can pull the second plate member 442 through the third plate member 443. It can be understood that the third plate member 443 can change the direction of the fourth acting force, so that the second plate member 442 can be subjected to a force along the negative direction of the Z axis. Since the second plate member 442 is fixed on the first diaphragm assembly 9a, the second plate member 442 can pull the first diaphragm assembly 9a to move along the negative direction of the Z axis under the action of the 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 horizontal rod 2 and the second horizontal rod 3 can drive the first diaphragm assembly 9a to periodically vibrate 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 pressing air.

[0323] The sound generating principle of the second diaphragm assembly 9b will be described in detail below in combination with the related drawings.

[0324] Please refer to Figure 23 and Figure 24 in combination with Figure 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 the first horizontal rod 2 can be driven to move along the positive direction of the X axis under the action of the Ampere force. When the first horizontal rod 2 exerts a fifth acting force along the positive direction of the X axis on the first end portion 51 of the second transmission member 5, the first end portion 51 of the second transmission member 5 can move along the positive direction of the X axis, and the first end portion 51 of the second transmission member 5 can press the second plate member 542 through the first plate member 541. It can be understood that the first plate member 541 can change the direction of the fifth acting force, so that the second plate member 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 the second horizontal rod 3 can be driven to move along the negative direction of the X axis under the action of the Ampere force. When the second horizontal rod 3 exerts a sixth acting force along the negative direction of the X axis on the second end portion 53 of the second transmission member 5, the second end portion 53 of the second transmission member 5 can move along the negative direction of the X axis, and the second end portion 53 of the second transmission member 5 can press the second plate member 542 through the third plate member 543. It can be understood that the third plate member 543 can change the direction of the sixth acting force, so that the second plate member 542 can be subjected to a force along the positive direction of the Z axis. Since the second plate member 542 is fixed on the second diaphragm assembly 9b, the second plate member 542 can drive the second diaphragm assembly 9b to move along the positive direction of the Z axis under the action of the two forces along the positive direction of the Z axis.

[0325] Please refer to Figure 23 and Figure 24 in combination with Figure 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 the first horizontal rod 2 can be driven to move along the negative direction of the X axis under the action of the Ampere force. When the first horizontal rod 2 exerts the seventh acting force along the negative direction of the X axis on the first end portion 51 of the second transmission member 5, the first end portion 51 of the second transmission member 5 can move along the negative direction of the X axis, and the first end portion 51 of the second transmission member 5 can pull the second plate member 542 through the first plate member 541. It can be understood that the first plate member 541 can change the direction of the seventh acting force, so that the second plate member 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 the second horizontal rod 3 can be driven to move along the positive direction of the X axis under the action of the Ampere force. When the second horizontal rod 3 exerts the eighth acting force along the positive direction of the X axis on the second end portion 53 of the second transmission member 5, the second end portion 53 of the second transmission member 5 can move along the positive direction of the X axis, and the second end portion 53 of the second transmission member 5 can pull the second plate member 542 through the third plate member 543. It can be understood that the third plate member 543 can change the direction of the eighth acting force, so that the second plate member 542 can be subjected to a force along the negative direction of the Z axis. Since the second plate member 542 is fixed on the second diaphragm assembly 9b, the second plate member 542 can pull the second diaphragm assembly 9b to move along the negative direction of the Z axis under the action of the two forces along the negative direction of the Z axis.

[0326] It can be understood that when the first horizontal rod 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 horizontal rod 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 horizontal rod 2 and the second horizontal rod 3 approach each other. At this time, the first horizontal rod 2 and the second horizontal rod 3 drive the two ends of the first transmission member 4 to approach each other along the X axis, and drive the two ends of the second transmission member 5 to approach each other along the X axis. When the first horizontal rod 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 horizontal rod 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 horizontal rod 2 and the second horizontal rod 3 move away from each other.

[0327] It can be understood that when the middle part 42 of the first transmission member 4 moves along the positive direction of the Z axis, the middle part 52 of the second transmission member 5 moves along the negative direction of the Z axis, the middle part 42 of the first transmission member 4 and the middle part 52 of the second transmission member 5 move away from each other. When the middle part 42 of the first transmission member 4 moves along the negative direction of the Z axis, the middle part 52 of the second transmission member 5 moves along the positive direction of the Z axis, the middle part 42 of the first transmission member 4 and the middle part 52 of the second transmission member 5 move close to each other. At this time, the first cross rod 2 and the second cross rod 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 cross rod 2 and the second cross rod 3 to move away from each other, and the first cross rod 2 and the second cross rod 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 close to 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 cross rod 2 and the second cross rod 3 to move close to each other, and the first cross rod 2 and the second cross rod 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 rod 2 and the second cross rod 3 can drive the second diaphragm assembly 9b to periodically vibrate 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 by arranging the first voice coil 6a and the second voice coil 6b to move along the X axis direction, and then converting the force along the X axis direction to the force along the Z axis direction through the first transmission member 4 and the second transmission member 5, the first diaphragm assembly 9a and the second diaphragm assembly 9b can vibrate along the Z axis direction. In this way, compared with the scheme in which the first voice coil 6a and the second voice coil 6b move along the Z axis direction, the sound generating device 100 of the present embodiment can not need to additionally increase the size of the first voice coil 6a and the second voice coil 6b to move along the Z axis direction. The sound generating device 100 of the present embodiment has a smaller size along the Z axis direction, which is conducive to realizing the thin design of the sound generating device 100.

[0331] In addition, by fixing the first end portion 41 of the first transmission member 4 on the bottom surface of the second end portion 23 of the first horizontal bar 2, fixing the second end portion 43 of the first transmission member 4 on the bottom surface of the second end portion 33 of the second horizontal bar 3, fixing the first end portion 51 of the second transmission member 5 on the top surface of the second end portion 23 of the first horizontal bar 2, fixing the second end portion 53 of the second transmission member 5 on the top surface of the second end portion 33 of the second horizontal bar 3, and passing the middle portion 42 of the first transmission member 4 through the second avoiding hole 544 of the second transmission member 5, the first transmission member 4 and the second transmission member 5 can be arranged in a cross shape in the projection of the X-Z plane, so that 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 mutually multiplexed. At this time, the size of the sound generating device 100 along the Z axis direction can be further reduced, thereby being more conducive to the thin design of the sound generating device.

[0332] In addition, the first diaphragm assembly 9a and the second diaphragm assembly 9b can sound simultaneously by the first horizontal bar 2 and the second horizontal bar 3 driving the first diaphragm assembly 9a and the second diaphragm assembly 9b simultaneously in the present embodiment, and the loudness of the sound of the sound generating device 100 is greater. In other words, the loudness of the sound generating device 100 can be greatly improved by using the double diaphragm assembly in the present embodiment.

[0333] Please refer to Figure 23 and Figure 24 , and combine Figure 19 and Figure 20 , by setting the first avoiding gap 710a on the fourth magnet 714a and / or the fifth magnet 715a of the first magnetic member 71a, so as to provide the first horizontal bar 2 with a moving space when the first horizontal bar 2 moves relative to the first frame 1a, that is, to avoid the interference between the first horizontal bar 2 and the fourth magnet 714a and / or the fifth magnet 715a of the first magnetic member 71a during the movement of the first horizontal bar 2 along the X axis direction. Similarly, by setting the second avoiding gap 720a on the fourth magnet 724a and / or the fifth magnet 725a of the second magnetic member 72a, so as to further provide the first horizontal bar 2 with more moving space when the first horizontal bar 2 moves relative to the first frame 1a, that is, to avoid the interference between the first horizontal bar 2 and the fourth magnet 724a and / or the fifth magnet 725a of the second magnetic member 72a during the movement of the first horizontal bar 2 along the X axis direction.

[0334] Figure 25 is an exploded view of an embodiment of the first diaphragm assembly 9a shown in Figure 3 . Figure 26 is a cross-sectional view of an embodiment of the first diaphragm assembly 9a at the B-B line shown in Figure 3 . Figure 27 is Figure 3 a structural schematic view of the first diaphragm assembly 9a in another angle.

[0335] As shown in FIG. 1, the first diaphragm assembly 9a includes a first dome 91a, a first folded ring 92a, a first reinforcing member 93a, and a first rigid member 94a. The first dome 91a, the first folded ring 92a, and the first rigid member 94a can constitute a first diaphragm 90a of the first diaphragm assembly 9a. In other embodiments, the first diaphragm 90a can have other structures. Figures 25 to 27 Exemplarily, the first folded ring 92a includes a first fixed portion 921a, a connecting portion 922a, and a second fixed portion 923a. The connecting portion 922a is connected between the first fixed portion 921a and the second fixed portion 923a. The connecting portion 922a protrudes relative to the same side of the first fixed portion 921a and the second fixed portion 923a. In an embodiment, the first fixed portion 921a and the second fixed portion 923a can both be planar.

[0336] As shown in FIG. 1, the first dome 91a is fixed on the second fixed portion 923a of the first folded ring 92a and located on the side of the first folded ring 92a protruding.

[0337] Figures 25 to 27

[0338] In addition, the first rigid member 94a is fixed on the first fixed portion 921a and located on the side of the first fixed portion 921a away from the first dome 91a. Exemplarily, the material of the first rigid member 94a can be stainless steel, aluminum, etc. Exemplarily, the first rigid member 94a is annular.

[0339] ​​In addition, the first reinforcing member 93a is fixed on 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, or the like. It can be understood that the first reinforcing member 93a can improve the strength of the second fixing portion 923a of the first folded ring 92a, thereby avoiding the second fixing portion 923a of the first folded ring 92a from being locally concave or convex during vibration, and further avoiding 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 folded 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. It can be understood that the present embodiment improves the strength of the first diaphragm 90a to a greater extent by providing the first reinforcing member 93a on the first diaphragm 90a. In other embodiments, the strength of the first diaphragm 90a can also be improved by other means. In an embodiment, the strength of the first diaphragm 90a can be improved by providing a structure of the first dome 91a. For example, by providing the first dome 91a in a square wave shape or a wave shape, and the like. For another example, by stamping a plurality of grooves on the first dome 91a or adding protrusions, and the like. Of course, while other means 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] Figure 28 is Figure 3 a cross-sectional view of the sound generating device 100 in another embodiment.

[0341] Referring to Figure 28 , and in combination with Figures 25 to 27 , the first rigid member 94a is fixed on the second frame 1b, that is, the first dome 91a and the first folded 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 folded ring 92a. In this way, the structural strength of the first fixing portion 921a of the first folded ring 92a can be improved to avoid being too low to be easily fixed on the second frame 1b, that is, to reduce the mounting process of the first folded ring 92a and the second frame 1b.

[0342] It can be understood that the first ball head 91a can be fixed on the side of the second fixing portion 923a of the first folding 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 head 91a, that is, the side facing the rear cavity 9c. The first reinforcing member 93a can be fixed on the side of the second fixing portion 923a facing the rear cavity 9c. In addition, the first reinforcing member 93a is arranged in a spaced manner with the middle portion 42 of the first transmission member 4. In other embodiments, the first reinforcing member 93a can also be fixed on the middle portion 42 of the first transmission member 4.

[0343] As shown in Figure 25 and Figure 27 exemplarily, 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 an 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 second plate 442 of the first transmission member 4 is one, and the first long side portion 934a of the first reinforcing member 93a is two. At this time, the first transmission member 4 is approximately annular.

[0345] As shown in Figure 28 and in combination with Figures 25 to 27 , the length extension direction of the first long side portion 934a of the first reinforcing member 93a can be parallel to the length extension direction of the second plate 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 442 of the first transmission member 4. The first long side portion 934a of the first reinforcing member 93a and the second plate 442 of the first transmission member 4 are arranged in a spaced manner along the width direction of the second plate 442 of the first transmission member 4.

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

[0347] As shown in Figure 25 and Figure 27As shown, 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 part of a 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, a first short side portion 935a, and a second short side portion 936a of the first reinforcing member 93a.

[0348] In addition, the first bending portion 931a and the second bending portion 933a are connected to two sides of the main body portion 932a, respectively. The first bending portion 931a and the second bending portion 933a are bent relative to the main body portion 932a and away from the second fixed portion 923a of the first ring 92a. The cross-sectional shape of the first reinforcing member 93a is substantially U-shaped. In this way, the overall structural strength of the first reinforcing member 93a is greater, i.e., the first reinforcing member 93a is less likely to be bent. In this way, the first reinforcing member 93a can greatly improve the structural strength of the first diaphragm assembly 9a. In other embodiments, the cross-sectional shape of the first reinforcing member 93a can also adopt other shapes, for example, the cross-sectional shape of the first reinforcing member 93a is rectangular, wavy, or square wave, etc. Specifically, the present application is not limited.

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

[0350] As shown in Figure 28 , and in combination with Figures 25 to 27 As shown, the main body portion 932a of the first reinforcing member 93a can be arranged around the second plate member 442 of the middle portion 42 of the first driving member 4.

[0351] As shown, the length extension direction of the first bending portion 931a and the second bending portion 933a of the first reinforcing member 93a is parallel to the length extension direction of the second plate member 442 of the first driving member 4. In this way, the first ring 92a is less likely to locally sag or protrude due to the force in the X-axis direction during vibration, thereby avoiding the formation of new modes of the first diaphragm assembly 9a. In this way, the first diaphragm assembly 9a can vibrate in piston mode (the second fixed portion 923a of the first ring 92a and the first dome 91a are relatively flat and do not sag / protrude), 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 includes more components, it may also include one or more transition membrane layers. The transition membrane layer may connect the first dome 91a and the first folded ring 92a. And / or, the transition membrane layer may connect the first reinforcement 93a and the first folded ring 92a. It is understood that the transition membrane layer can make the first dome 91a and the first folded ring 92a more tightly bonded, i.e., with better bonding force, and / or make the first reinforcement 93a and the first folded ring 92a more tightly bonded, i.e., with better bonding force. As another example, when the first diaphragm assembly 9a includes fewer components, it may not include the first reinforcement 93a and / or the first rigid member 94a.

[0353] It is understood that the first diaphragm assembly 9a may also adopt other structures. Any diaphragm assembly that can vibrate under the drive force and produce sound is within the scope of protection of this application.

[0354] Figure 29 yes Figure 3 An exploded view of one embodiment of the second diaphragm assembly 9b shown. Figure 30 yes Figure 3 The diagram shows the structure of the second diaphragm assembly 9b at another angle.

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

[0356] It can be understood that the second dome 91b, the second folded ring 92b and the second rigid piece 94b of the second diaphragm assembly 9b can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure, respectively, as the first dome 91a, the first folded ring 92a and the first rigid piece 94a of the first diaphragm assembly 9a. In the embodiment, the second dome 91b, the second folded ring 92b and the second rigid piece 94b of the second diaphragm assembly 9b are the same structure as the first dome 91a, the first folded ring 92a and the first rigid piece 94a of the first diaphragm assembly 9a, respectively. The basic design of the component structure, the connection relationship design between the components, and the connection relationship design of the components and other structures outside the assembly of the second dome 91b, the second folded ring 92b and the second rigid piece 94b of the second diaphragm assembly 9b can be referred to the relevant schemes of the first dome 91a, the first folded ring 92a and the first rigid piece 94a of the first diaphragm assembly 9a, respectively, while allowing the second dome 91b, the second folded ring 92b and the second rigid piece 94b of the second diaphragm assembly 9b to be slightly different from the first dome 91a, the first folded ring 92a and the first rigid piece 94a of the first diaphragm assembly 9a in the detailed structure or position arrangement of the components, respectively.

[0357] Figure 31 is Figure 2 FIG. 8 shows a cross-sectional view of another embodiment of the sound production device 100 at the line A-A.

[0358] Referring to Figure 31 , and in combination with Figure 29 and Figure 30 , the second rigid piece 94b is fixed on the first frame 1a, that is, the second dome 91b and the second folded ring 92b are fixed on the first frame 1a through the second rigid piece 94b. The second rigid piece 94b can improve the structural strength of the first fixed part 921b of the second folded ring 92b. In this way, it can avoid that the structural strength of the first fixed part 921b of the second folded ring 92b is too low to be easily fixed on the second frame 1b, that is, to reduce the mounting process of the second folded ring 92b and the second frame 1b.

[0359] It can be understood that the second dome 91b can be fixed on the side of the second fixed part 923b of the second folded ring 92b away from the rear cavity 9c. The second plate 542 of the middle part 52 of the second transmission member 5 can be fixed on the side of the second fixed part 923b of the second folded ring 92b away from the second dome 91b, that is, the side facing the rear cavity 9c. The second reinforcing piece 93b can be fixed on the side of the second fixed part 923a of the second folded ring 92b facing the rear cavity 9c. In addition, the second reinforcing piece 93b is arranged in a spaced manner between the second folded ring 92b and the middle part 52 of the second transmission member 5. In other embodiments, the second reinforcing piece 93b can also be fixed on the middle part 52 of the second transmission member 5.

[0360] As Figures 29 to 30 As shown, exemplarily, the second reinforcing member 93b comprises a second long edge portion 934b. At this time, the second reinforcing member 93b can be in a strip shape. In an embodiment, the length extension direction of the second long edge portion 934b of the second reinforcing member 93b can be parallel to the X-axis direction.

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

[0362] Please refer to Figure 31 , in combination with Figure 29 and Figure 30 As shown, the length extension direction of the second long edge 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 edge portion 934b of the second reinforcing member 93b and the second plate member 542 of the second transmission member 5 are arranged along the width direction of the second plate member 542 of the second transmission member 5.

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

[0364] As Figure 28 and Figure 31 shown, exemplarily, the number of the second long edge portion 934b of the first reinforcing member 93a and the number of the second plate member 442 of the first transmission member 4 are equal to the number of the second long edge portion 934b of the second reinforcing member 93b and the number of the second plate member 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, thereby facilitating the vibration of the first diaphragm assembly 9a and the second diaphragm assembly 9b to be substantially the same, thereby facilitating improving the sound production effect of the sound production device 100.

[0365] As Figure 29 and Figure 30 shown, exemplarily, the second reinforcing member 93b comprises 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 respectively connected to the two sides of the main body portion 931b. The first bending portion 932b and the second bending portion 933b are bent away from the side of the main body portion 931b which is away from the second fixed portion 923b of the second ring 92b. In this way, the overall structural strength of the second reinforcing member 93b is greater, that is, the second reinforcing member 93b is not easy to bend. When the second reinforcing member 93b can greatly improve the structural strength of the second diaphragm assembly 9b.

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

[0368] Referring to Figure 31 , and in combination with Figure 29 and Figure 30 , it is shown that the first bending portion 932b and the second bending portion 933b of the second reinforcing member 93b are parallel to the length extension direction of the second plate member 542 of the second transmission member 5. In this way, the second ring 92b is not prone to local concave or convex deformation during vibration due to the force in the X-axis direction, thereby avoiding the formation of a new mode of the second diaphragm assembly 9b. In this way, the first diaphragm assembly 9a can vibrate in piston mode (the second fixed portion 923a of the first 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 can be understood that the present embodiment improves the strength of the second diaphragm 90b to a greater extent by providing the second reinforcing member 93b on the second diaphragm 90b. In other embodiments, the strength of the second diaphragm 90b can also be improved by other means. In an embodiment, the strength of the second diaphragm 90b can be improved by providing a structure of the second dome 91b. For example, by setting the shape of the cross section of the second dome 91b to a square wave shape or a wave shape, etc. For another example, by stamping a plurality of grooves on the second dome 91b or adding protrusions, etc. Of course, while other means are used to improve the strength of the second diaphragm 90b, the first reinforcing member 93a can also be provided to better improve the strength of the second diaphragm 90b.

[0370] In other embodiments, the second diaphragm assembly 9b can also include more or fewer components. For example, when the second diaphragm assembly 9b further includes more components, the second diaphragm assembly 9b can also include one or more transition film layers. The transition film layer can be connected between the second dome 91b and the second ring 92b. And / or, the transition film layer can be connected between the second reinforcing member 93b and the second ring 92b. It can be understood that the transition film layer can make the combination between the second dome 91b and the second ring 92b more closely, i.e. better bonding, and / or the combination between the second reinforcing member 93b and the second ring 92b more closely, i.e. better bonding. For another example, when the second diaphragm assembly 9b includes fewer components, the second diaphragm assembly 9b can not include the second reinforcing member 93b and / or the second rigid member 94b.

[0371] It can be understood that the second diaphragm assembly 9b can also adopt other structures. As long as the diaphragm assembly can vibrate under the driving force and emit sound, it is within the protection scope of the present application.

[0372] The structure of the sound-generating device 100 has been described in detail above with reference to the accompanying drawings. The following section will describe several other structures of the sound-generating device 100 with reference to the accompanying drawings.

[0373] The following section will further describe the structures of several first transmission components 4 and second transmission components 5 in conjunction with relevant accompanying drawings. Figure 8 and Figure 9 The technical details of the first transmission member 4 and the second transmission member 5, which are identical in the illustrated embodiment, will not be repeated here.

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

[0375] like Figure 32 and Figure 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 similar to that described above. Figure 8 and Figure 9 The structure of the first connector 44 in the illustrated embodiment is the same. Specific details will not be repeated here.

[0376] Additionally, 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 as described above. Figure 8 and Figure 9 The structure of the second connector 54 in the illustrated embodiment is the same. Specific details will not be repeated here.

[0377] like Figure 32 and Figure 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 first transmission member 4 and the second transmission member 5 can be roughly intersected in the projection of the XZ plane.

[0378] Figure 34 yes Figure 3 The diagram shows a structural schematic of another embodiment of the first transmission member 4 and the second transmission member 5.

[0379] like Figure 34As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two. Figure 8 and Figure 9 The specific structure of the second connecting members 54 is the same as that of the second connecting members 54 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein.

[0380] As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two.

[0381] As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two. Figure 34 The specific structure of the second connecting members 54 is the same as that of the second connecting members 54 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. Figure 8 Figure 9 As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two.

[0382] As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two.

[0383] Figure 35 is Figure 3 the structural schematic view of still another embodiment of the first transmission member 4 and the second transmission member 5.

[0384] As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two. Figure 35 The specific structure of the second connecting members 54 is the same as that of the second connecting members 54 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. Figure 8 Figure 9 As shown in FIG. 1, the middle portion 42 of the first transmission member 4 comprises a plurality of first connecting members 44. The specific structure of the first connecting members 44 is the same as that of the first connecting members 44 of the embodiments shown in FIGS. 2-4 and 6-8. Specifically, no further elaboration is made herein. In addition, the present embodiment is described by way of example with the number of the first connecting members 44 being two.

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

[0386] As shown in Figure 35 , the middle part 52 of the second transmission member 5 includes a plurality of second connecting pieces 54. The specific structure of the second connecting piece 54 is the same as that of the second connecting piece 54 of the embodiment Figure 8 and Figure 9 described above. Specifically, it will not be described here. In addition, the present embodiment is described with the number of second connecting pieces 54 being three as an example.

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

[0388] It can be understood that the connection mode of the first transmission member 4 with the first cross rod 2 and the second cross rod 3 can refer to the connection mode of the first transmission member 4 with the first cross rod 2 and the second cross rod 3 of each of the above embodiments. In addition, the connection mode of the second transmission member 5 with the first cross rod 2 and the second cross rod 3 can refer to the connection mode of the second transmission member 5 with the first cross rod 2 and the second cross rod 3 of each of the above embodiments. Among them, the connection mode of the second transmission member 5 with the first cross rod 2 and the second cross rod 3 is slightly different from that of each of the above embodiments, that is, the first first connecting piece 44 of the first transmission member 4 passes through the first second avoiding hole 544 of the second transmission member 5, and the second first connecting piece 44 passes through the second second avoiding hole 544 of the second transmission member 5. In addition, the second second connecting piece 54 passes through the first avoiding hole 444 of the first transmission member 4. It can be understood that the projection of the first transmission member 4 and the second transmission member 5 in the X-Z plane can form a cross arrangement. Specifically, it will not be described here.

[0389] It can be understood that when the number of the first connecting members 44 of the first transmission member 4 is more, two adjacent first connecting members 44 can form a first avoiding hole 444. The second connecting member 54 of the second transmission member 5 can pass through the first avoiding hole 444. Similarly, when the number of the second connecting members 54 of the second transmission member 5 is more, two adjacent second connecting members 54 can form a second avoiding hole 544. The first connecting member 44 of the first transmission member 4 can pass through the second avoiding hole 544. Details are not described here.

[0390] Figure 36 is Figure 3 a structural schematic view of still another embodiment of the first transmission member 4 and the second transmission member 5.

[0391] As Figure 36 shown, the middle part 42 of the first transmission member 4 further comprises a first fixing member 48a. The number of the first fixing member 48a can be one or more. Hereinafter, the case that the number of the first fixing member 48a is one is described first.

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

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

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

[0395] It can be understood that when a first force along the positive direction of the X axis is applied to the first end portion 41 of the first transmission member 4, the first end portion 41 of the first transmission member 4 can move along the positive direction of the X axis, and the first end portion 41 of the first transmission member 4 can press the second plate member 442 of the first transmission member 4 through the first plate member 441 of the first transmission member 4. The first plate member 441 of the first transmission member 4 can change the direction of the first force, so that the second plate member 442 of the first transmission member 4 can be subjected to a force along the positive direction of the Z axis. At the same time, the second plate member 442 of the first transmission member 4 will also be subjected to a force along the positive direction of the X axis. It can be understood that while the first end portion 41 of the first transmission member 4 presses the second plate member 442 of the first transmission member 4 through the first plate member 441 of the first transmission member 4, the first fixed member 48a will also press the second plate member 442 of the first transmission member 4 through the first plate member 441 of the first transmission member 4, so that the second plate member 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 of the second plate member 442 of the first transmission member 4 in the X axis direction can be mostly cancelled out. The included angle between the first end portion 481a of the first fixed member 48a and the middle portion 482a of the first fixed member 48a decreases. The included angle between the middle portion 482a of the first fixed member 48a and the second end portion 483a of the first fixed member 48a also decreases.

[0396] It can be understood that when a first force along the positive direction of the X axis is applied to the first end portion 41 of the first transmission member 4, the first end portion 41 of the first transmission member 4 can move along the positive direction of the X axis, and the first end portion 41 of the first transmission member 4 can press the second plate member 442 of the first transmission member 4 through the first plate member 441 of the first transmission member 4. The first plate member 441 of the first transmission member 4 can change the direction of the first force, so that the second plate member 442 of the first transmission member 4 can be subjected to a force along the positive direction of the Z axis. At the same time, the second plate member 442 of the first transmission member 4 will also be subjected to a force along the positive direction of the X axis. It can be understood that while the first end portion 41 of the first transmission member 4 presses the second plate member 442 of the first transmission member 4 through the first plate member 441 of the first transmission member 4, the first fixed member 48a will also press the second plate member 442 of the first transmission member 4 through the first plate member 441 of the first transmission member 4, so that the second plate member 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 of the second plate member 442 of the first transmission member 4 in the X axis direction can be mostly cancelled out. The included angle between the first end portion 481a of the first fixed member 48a and the middle portion 482a of the first fixed member 48a decreases. The included angle between the middle portion 482a of the first fixed member 48a and the second end portion 483a of the first fixed member 48a also decreases.

[0397] It can be understood that when the second plate member 442 of the first transmission member 4 is subjected to forces in the X-axis direction, the forces can be mostly cancelled out, and the second plate member 442 of the first transmission member 4 is not easy to exert a force in the X-axis direction on the first diaphragm assembly 9a. The first diaphragm assembly 9a is not easy to bend or deform. In this way, the first diaphragm assembly 9a is not easy to form a new mode when vibrating in the Z-axis direction. The first diaphragm assembly 9a can vibrate in a piston mode (the second fixed portion 923a of the first folded 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 fixed member 48a for realizing the above-mentioned movement can refer to the specific structure of the first transmission member 4. For example, the first fixed member 48a can also adopt the scheme of a flexible member of an integral structure member cooperating with a hard patch (which can refer to the structure of the first transmission member 4 of the embodiment shown in Figure 10 and Figure 11 ). The first fixed member 48a can also adopt the scheme of a plurality of hard members cooperating with a plurality of flexible members, and the flexible members can be formed between the two hard members through an injection molding process (which can refer to the structure of the first transmission member 4 of the embodiment shown in Figure 12 ). Details are not described here. Of course, the specific structure of the first fixed member 48a is not limited to the above-mentioned several structures. As long as the first fixed member 48a can realize the above-mentioned movement, it is within the protection scope of the present application.

[0399] In other embodiments, the middle portion 42 of the first transmission member 4 further comprises a second fixed member (not shown in the figure). One end of the second fixed 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 fixed member is fixed to the second frame 1b or the first frame 1a. It can be understood that the second fixed member and the first fixed member 48a can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In the present embodiment, the second fixed member has the same structure as the first fixed member 48a, and the basic design of the component structure of the second fixed member, the connection relationship design between the components, and the connection relationship design of the components and other structures outside the assembly can refer to the related schemes of the first fixed member 48a, while allowing the second fixed member and the first fixed member 48a to be slightly different in the detailed structure or position arrangement of the components.

[0400] Figure 37 is Figure 3 a schematic structural diagram of another embodiment of the first transmission member 4.

[0401] As Figure 37As shown, the first plate 441 of the first connecting member 44 of the first transmission member 4 comprises 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 of the first end 41 of the first transmission member 4 and the first plate 441 is larger than the connection area of the first plate 441 and the second plate 442. At the same time, the connection area of the first plate 441 of the first connecting member 44 and the first end 41 of the first transmission member 4 can be increased to a large extent, so that the first plate 441 of the first connecting member 44 is prevented from being deformed.

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

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

[0405] Figure 38 is Figure 3 Part structure schematic diagram of still another embodiment of the first transmission member 4 and the second transmission member 5.

[0406] As Figure 38 As shown, the first plate 541 of the first 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 first connecting member 54 is smaller than the width of the second end 5412 of the first plate 541 of the first connecting member 54. In this way, at the same time of ensuring that the first transmission member 4 and the second transmission member 5 do not interfere with each other during movement, the connection area of the first plate 541 of the first connecting member 54 and the first end 51 of the second transmission member 5 can be increased to a large extent, so that the first plate 541 of the first connecting member 54 is prevented 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 arrangement of the magnetic circuit systems will be described in detail below in connection with the relevant drawings. The same technical content as the structure of the first magnetic circuit system 7a of the embodiment shown will not be described again. Figure 7 The same technical content as the structure of the first magnetic circuit system 7a of the embodiment shown will not be described again.

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

[0410] As Figure 39 The first magnetic member 71a includes a first magnet 711a and a second magnet 712a, as shown. 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 arranged with a gap (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 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.

[0412] It can be understood that the structure of the second magnetic member 72a is the same as that of the first magnetic member 71a. Details will not be described again here.

[0413] As Figure 39 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 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 first Ampere force generated by the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a has the same direction. For example, the direction of the first Ampere force is the X-axis direction.

[0414] As Figure 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, the polarization direction of the second magnet 712a of the second magnetic member 72a is also the positive direction of the Z axis, and the polarization directions of the first magnet 711a and the second magnet 712a of the second magnetic member 72a are both perpendicular to the winding plane of the first voice coil 6a. In this way, when the first voice coil 6a is energized, the current directions of the first long strip segment 61a of the first voice coil 6a and the second long strip segment 62a of the first voice coil 6a are opposite. The first amperes generated by the first long strip segment 61a and the second long strip segment 62a of the first voice coil 6a are in the same direction. For example, the first amperes are both in the X axis direction.

[0415] In other embodiments, the first magnetic member 71a is composed of one magnet. At this time, the first magnetic member 71a includes two parts with opposite polarization directions. The polarization directions of the two parts are opposite. For example, 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 can be understood that the first magnetic member 71a can be made by a bipolar magnetization process, so as to realize that one magnet has two polarization directions.

[0417] It can be understood that the structure of the second magnetic member 72a is the same as that of the first magnetic member 71a. Details are not described here.

[0418] In the present 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. Details are not described here.

[0419] Figure 40 is Figure 3 A structural schematic diagram of still another embodiment of the first voice coil 6a and the first magnetic circuit system 7a is shown.

[0420] As Figure 40 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] 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). Furthermore, the polarization directions of the third magnet 713a and the seventh magnet 717a are parallel to the arrangement direction of the five magnets. The polarization direction of the first magnet 711a is the same as that of the sixth magnet 716a. The polarization direction of the first magnet 711a is opposite to that of the second magnet 712a. The polarization direction of the third magnet 713a is opposite to that of the seventh magnet 717a.

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

[0423] It is understood that the second magnetic element 72a and the first magnetic element 71a can have the same or similar structure, a symmetrical or partially symmetrical structure, or different structures. In this embodiment, the first magnetic element 71a and the second magnetic element 72a have similar structures, but the second magnetic element 72a and the first magnetic element 71a differ slightly in the details of their components. Specifically, the second magnetic element 72a and the first magnetic element 71a are the same in that the second magnetic element 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 element 72a are the same as the polarization directions of the first magnet 711a, the second magnet 712a, and the sixth magnet 716a of the first magnetic element 71a, respectively. The second magnetic element 72a differs from the first magnetic element 71a in that the polarization direction of the third magnet 723a of the second magnetic element 72a is opposite to the polarization direction of the third magnet 713a of the first magnetic element 71a. The polarization direction of the seventh magnet 727a of the second magnetic element 72a is opposite to the polarization direction of the seventh magnet 717a of the first magnetic element 71a.

[0424] like Figure 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. The first voice coil 6a and the third voice coil 6c are located between the first magnetic element 71a and the second magnetic element 72a.

[0425] Exemplarily, the first long section 61a of the first voice coil 6a can be located between the first magnet 711a of the first magnetic piece 71a and the first magnet 721a of the second magnetic piece 72a. The second long section 62a of the first voice coil 6a can be located between the second magnet 712a of the first magnetic piece 71a and the second magnet 722a of the second magnetic piece 72a. The first long section 61c of the third voice coil 6c can be located between the second magnet 712a of the first magnetic piece 71a and the second magnet 722a of the second magnetic piece 72a. The second long section 62c of the third voice coil 6c can be located between the sixth magnet 716a of the first magnetic piece 71a and the sixth magnet 726a of the second magnetic piece 72a. In this way, when the first voice coil 6a and the third voice coil 6c are energized, the current direction of the first long section 61a of the first voice coil 6a is opposite to the current direction of the second long section 62a of the first voice coil 6a, and the current direction of the first long section 61c of the third voice coil 6c is opposite to the current direction of the second long section 62c of the third voice coil 6c. The directions of the Ampere forces generated by the first voice coil 6a and the third voice coil 6c under the actions of the first magnetic piece 71a and the second magnetic piece 72a are the same. It can be understood that the two voice coils (the first voice coil 6a and the third voice coil 6c) and the two magnetic pieces (the first magnetic piece 71a and the second magnetic piece 72a) of the embodiment are matched with each other, so that the first cross rod 2 can obtain the driving force of two Ampere forces (the first Ampere force and the second Ampere force). In this way, the first cross rod 2 can obtain a larger stroke in the X-axis direction.

[0426] Figure 41 is Figure 3 a structure schematic view of still another embodiment of the first voice coil and the first magnetic circuit system.

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

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

[0429] Exemplarily, 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 assembly 70A are all parallel to the arrangement direction of the three magnetic members. The polarization direction of the second magnetic member 75a is opposite to that of the first magnetic member 71a. The polarization direction of the third magnetic member 79a is the same as that of the first magnetic member 71a.

[0430] Exemplarily, the polarization direction of the first magnetic member 71a of the first magnetic circuit assembly 70A and the polarization direction of the third magnetic member 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 member 75a of the first magnetic circuit assembly 70A is in the positive direction of the X-axis.

[0431] The second magnetic circuit assembly 70B includes, in sequence along the X-axis direction, 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. 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. The first magnetic member 70a, the second magnetic member 74a, and the third magnetic member 78a of the second magnetic circuit assembly 70B can be magnets or other components with magnetism. The first magnetic conductive member 72a and the second magnetic conductive member 76a of the second magnetic circuit assembly 70B are made of magnetic conductive materials, such as silicon steel sheets and various iron products and alloys formed by 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 assembly 70B can all be magnets. In other embodiments, the second magnetic circuit assembly 70B can not include the first magnetic member 70a and / or the third magnetic member 78a.

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

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

[0434] As shown in Figure 41 , the first voice coil 6a is located between the first magnetic circuit assembly 70A and the second magnetic circuit assembly 70B. In addition, the first long strip segment 61a of the first voice coil 6a can be located between the first magnetic conductive member 73a of the first magnetic circuit assembly 70A and the first magnetic conductive member 72a of the second magnetic circuit assembly 70B. In addition, the second long strip segment 62a of the first voice coil 6a can be located between the second magnetic conductive member 77a of the first magnetic circuit assembly 70A and the second magnetic conductive member 76a of the second magnetic circuit assembly 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 assembly 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 assembly 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 strip segment 61a of the first voice coil 6a is opposite to that of the second long strip segment 62a of the first voice coil 6a. The directions of the ampere force generated by the first voice coil 6a under the action of the first magnetic circuit assembly 70A and the second magnetic circuit assembly 70B are the same.

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

[0436] As shown in Figure 42 and Figure 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 towards the same side of the first end portion 81a and the second end portion 83a of the first elastic member 8a. Exemplarily, the middle portion 82a of the first elastic member 8a is in an arc shape.

[0437] Exemplarily, the number of the first elastic members 8a can be six. Among them, the first, second and third first elastic members 8a are located on one side of the first cross bar 2, and the fourth, fifth and sixth first elastic members 8a are located on the other side of the first cross bar 2. In this way, the first elastic members 8a can stably connect the first frame 1a and the first cross bar 2.

[0438] It can be understood that the arrangement of the second elastic member 8b can be the same or similar to that of the first elastic member 8a. Details are not repeated here.

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

[0440] As Figure 44 shown, the first elastic member 8a is connected by a first sub-folded ring 85a and a second sub-folded ring 86a.

[0441] Among them, the first sub-folded ring 85a includes a first end portion 851a, a middle portion 852a and a second end portion 853a. The middle portion 852a of the first sub-folded ring 85a protrudes towards the same side of the first end portion 851a and the second end portion 853a of the first sub-folded ring 85a. Exemplarily, the middle portion 852a of the first sub-folded ring 85a is in an arc shape.

[0442] Among them, the second sub-folded ring 86a includes a first end portion 861a, a middle portion 862a and a second end portion 863a. The middle portion 862a of the second sub-folded ring 86a protrudes towards the same side of the first end portion 861a and the second end portion 863a of the second sub-folded ring 86a. Exemplarily, the middle portion 862a of the second sub-folded ring 86a is in an arc shape.

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

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

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

[0446] It can be understood that the first elastic member 8a of the embodiment is connected by the first sub-folded ring 85a and the second sub-folded ring 86a, which is convenient and simple to manufacture. In other embodiments, the first elastic member 8a can also be formed by an injection molding process to form an integral structure.

[0447] It can be understood that the structure of the second elastic member 8b can also refer to the structure of the first elastic member 8a shown in Figure 5 The specific details are not described here.

[0448] In other embodiments, the first elastic member 8a and the second elastic member 8b can also adopt other structures. It can be understood that the support piece which can support the first horizontal rod 2 and can be deformed in the X-axis direction is within the protection scope of the present application.

[0449] Figure 45 is a structure schematic diagram of a third elastic member 8c provided by an embodiment of the present application in an embodiment. Figure 46 is Figure 2 is a partial structure schematic diagram of a sound generating device 100 in another embodiment.

[0450] As Figure 45 and Figure 46 The sound generating device 100 further includes a third elastic member 8c. The third elastic member 8c can be a spring, a spring piece, etc. Hereinafter, the third elastic member 8c is taken as a spring piece for example.

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

[0452] It can be understood that the third elastic member 8c of the embodiment can be used in cooperation with the first elastic member 8a of each of the above embodiments. For example, the third elastic member 8c can be used in cooperation with the first elastic member 8a of the first embodiment.Figure 15 The structure of the first elastic member 8a is used in cooperation with the structure of the first cross bar 2 and the first frame 1a. Details of the structure of the first cross bar 2 and the first frame 1a are described below. Figure 15 The connection of the first elastic member 8a with the first cross bar 2 and the first frame 1a can be understood with reference to the embodiment shown in Figure 16 The connection of the third elastic member 8c with the first cross bar 2 and the first frame 1a is described below.

[0453] As shown in Figure 45 and Figure 46 , 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 cross bar 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 cross bar 2.

[0454] In addition, the middle part 82c of the third elastic member 8c can be fixed to the first frame 1a (see Figure 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 the support point.

[0455] As shown in Figure 46 , the sound production device 100 can also include a fourth elastic member 8d. The first end 81d and the second end 83d of the fourth elastic member 8d can be fixed to the first end 31 of the second cross bar 3. The middle part 82d of the fourth elastic member 8d can be fixed to the first frame 1a (see Figure 31 ). It can be understood that the fourth elastic member 8d and the third elastic member 8c can be the same or similar structure, symmetrical or partially symmetrical structure, or different structure. In the embodiment, the fourth elastic member 8d and the third elastic member 8c are symmetrical structures, and the basic design of the component structure of the fourth elastic member 8d, the connection relationship between the components, and the connection relationship between the components and other structures outside the assembly can be understood with reference to the related solutions of the third elastic member 8c, while allowing the fourth elastic member 8d and the third elastic member 8c 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] As shown in Figure 45 , the third elastic member 8c includes an insulating part 84c, a first conductive part 85c, and a second conductive part 86c. The first conductive part 85c and the second conductive part 86c are respectively connected to the two ends of the insulating part 84c. Among them, the material of the insulating part 84c is an insulating material. The materials of the first conductive part 85c and the second conductive part 86c can be conductive materials.

[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 portion 81c, the middle portion 82c and the second end portion 83c of the third elastic member 8c has various setting modes. For example, a part 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 portion 81c of the third elastic member 8c and a part 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 portion 83c of the third elastic member 8c and a part of the middle portion 82c of the third elastic member 8c form the second conductive portion 86c of the third elastic member 8c.

[0458] As shown in Figure 45 and Figure 46 , the first end portion of the first conductive portion 85c can pass through the first crossbar 2 and be electrically connected with the input end of the first voice coil 6a. The second end portion of the first conductive portion 85c can be used for electrical connection with the positive pole of the external power supply. The first end portion of the second conductive portion 86c can pass through the first crossbar 2 and be electrically connected with the output end of the first voice coil 6a. The second end portion of the second conductive portion 86c can be used for electrical connection with the negative pole of the 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 constitute a current loop. In other embodiments, the electrical connection positions of the first conductive portion 85c and the second conductive portion 86c can be transposed. Details are not described here again.

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

[0460] It can be understood that the setting mode of the fourth elastic member 8d can be the same or similar design as that of the third elastic member 8c. Details are not described here again.

[0461] It can be understood that the mode of electrical connection of the first voice coil 6a to the external device is not limited to the mode shown in Figure 45 and Figure 46 . In other embodiments, a first conductive member (not shown in the figure) and a second conductive member (not shown in the figure) can also be provided on the first crossbar 2. The first conductive member and the second conductive member can be embedded in the first crossbar 2. In addition, the first conductive member can 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 can 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 can be electrically connected to the external device through the first conductive member and the second conductive member.

[0462] The above describes several embodiments of the first reinforcing member 93a. The following describes several setting modes of the first reinforcing member 93a in combination with relevant drawings. The same technical content as the above is not described again.

[0463] Figure 47 is a structural schematic diagram of the first reinforcing member 93a in another embodiment provided by the embodiment of the present application. Figure 48 is Figure 3 is a structural schematic diagram of the first diaphragm assembly 9a in another embodiment.

[0464] As shown in Figure 47 , the first reinforcing member 93a is provided with a first groove 991. The first groove 991 can be one. The first groove 991 can also be multiple, and the multiple first grooves 991 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 member 93a.

[0466] As shown in Figure 48 , 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 can be one. The second groove 994 can also be multiple, and the multiple second grooves 994 are arranged at intervals. The second groove 994 forms an opening 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 in the shape of a square wave.

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

[0469] Figure 49 is a structural schematic diagram of the first reinforcing member 93a in another embodiment provided by the embodiment of the present application.

[0470] As shown in Figure 49 and Figure 50 , the first reinforcing member 93a can also be provided with a protrusion 992. The protrusion 992 can be one. The protrusion 992 can also be multiple, and the multiple protrusions 992 are arranged at intervals. At this time, the first reinforcing member 93a is roughly in the shape of a city wall.

[0471] It can be understood that when the first reinforcing member 93a is fixed on the first diaphragm 90a, the protrusion 992 protrudes from 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. When the first reinforcing member 93a can greatly improve the structural strength of the first diaphragm assembly 9a.

[0472] Figure 50 is a structural schematic diagram of the first reinforcing member 93a in another embodiment provided by the present application. Figure 51 is Figure 3 a structural schematic diagram of the first diaphragm assembly 9a in another embodiment.

[0473] As shown in Figure 50 and Figure 51 , the number of the first reinforcing member 93a is multiple, 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. When the first reinforcing member 93a can greatly improve the structural strength of the first diaphragm assembly 9a.

[0474] Exemplarily, the arrangement direction of the multiple first reinforcing members 93a can be Figure 28 the width direction of the second plate member 442 of the first transmission member 4, that is, the Y-axis direction. In other embodiments, the arrangement direction of the multiple first reinforcing members 93a is not limited.

[0475] It can be understood that the structure of the first reinforcing member 93a in the present embodiment can refer to the structure of the first reinforcing member 93a shown in Figure 27 and Figure 28 . Specifically, the first reinforcing member 93a includes a main body part 932a, a first bending part 931a and a second bending part 933a, that is, the shape of the cross section of the first reinforcing member 93a is roughly U-shaped. Among them, the main body part 932a is fixed on the first diaphragm 90a. The first bending part 931a and the second bending part 933a are located on the side of the main body part 932a away from the first diaphragm 90a.

[0476] In other embodiments, the first reinforcing member 93a can also adopt other shapes, for example, the shape of the cross section of the first reinforcing member 93a can be rectangular, wavy or square wave, etc. Specifically, the present application is not limited.

[0477] The above describes various embodiments of the sound production device 100. In each of the above embodiments, the first transmission member 4 is connected to the first horizontal bar 2 by first end portion 41 of the first transmission member 4 being fixed to the first horizontal bar 2, and the first end portion 41 being bendable at the connection with the middle portion 42, thereby achieving a movable connection of the first transmission member 4 to the first horizontal bar 2. Of course, in other embodiments, the first transmission member 4 can be movably connected to the first horizontal bar 2 in other ways. For example, the first transmission member 4 can not include the first end portion 41. In this case, the middle portion 42 of the first transmission member 4 can be movably connected to the first horizontal bar 2 by an active mechanism (e.g., a ball link mechanism, etc.). In this case, the end portion of the middle portion 42 of the first transmission member 4 can serve as the first end portion of the first transmission member 4. Details are not described here. It will be understood that the connection of the second end portion 43 of the first transmission member 4 to the second horizontal bar 3, the connection of the first end portion 51 of the second transmission member 5 to the first horizontal bar 2, and the connection of the second end portion 53 of the second transmission member 5 to the second horizontal bar 3 can be understood with reference to the connection of the first transmission member 4 to the first horizontal bar 2. Details are not described here.

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

[0479] Of course, in other embodiments, the connection position of the first transmission member 4 to the first crossbar 2 and the second crossbar 3 is not limited. The connection position of the second transmission member 5 to 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. Alternatively, 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 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 top surface of the second crossbar 3. Alternatively, the first end of the second transmission member 5 can be connected to the top 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. For yet 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. At this time, the first transmission member 4 can be arranged without crossing the second transmission member 5. For yet 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 can be connected to any position on the second crossbar 3.

[0480] The above describes various embodiments of the sound production device 100. In each of the above embodiments, the sound production device 100 includes both the first crossbar 2 and the second crossbar 3. In other embodiments, the sound production device 100 can include only the first crossbar 2 or only the second crossbar 3. For example, when the sound production device 100 includes the first crossbar 2, the second end of the first transmission member 4 can be directly connected to the yoke 1. The second end of the second transmission member 5 can be directly connected to the yoke 1. For another example, when the sound production device 100 includes the second crossbar 3, the first end of the first transmission member 4 can be directly connected to the yoke 1. The first end of the second transmission member 5 can be directly connected to the yoke 1. The specific embodiments are not limited in the present application.

[0481] The above describes various embodiments of the sound production device 100. In each of the above embodiments, the sound production device 100 comprises both the first diaphragm assembly 9a and the second diaphragm assembly 9b. In other words, the sound production device 100 is a double-diaphragm structure. In other embodiments, the sound production device 100 is a single-diaphragm structure. In this case, the sound production device 100 comprises the first diaphragm assembly 9a, i.e. the sound production device 100 can not comprise the second diaphragm assembly 9b and the second transmission member 5. In this way, the back cavity 9c of the sound production device 100 can be enclosed by the first diaphragm assembly 9a and the yoke 1. In other embodiments, the sound production device 100 can also be a single-diaphragm structure of other structures. Specifically, no limitation is made here.

[0482] It can be understood that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and any combination of the features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined as needed.

[0483] It can be understood that all the above-mentioned drawings are exemplary drawings of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application.

[0484] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. In the case of no 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 should be subject to the protection scope of the claims.

Claims

1. A sound producing device (100), characterized in that, The utility model relates to a loudspeaker, including: A basin frame (1); First diaphragm assembly (9a), second diaphragm assembly (9b), first diaphragm assembly (9a) with second diaphragm assembly (9b) are fixed in the middle part of basin frame (1), and relative arrangement is set up; First crossbar (2), second crossbar (3), first crossbar (2) swing joint first end of basin frame (1), and second crossbar (3) swing joint second end of basin frame (1); First transmission part (4), first end of first transmission part (4) is connected first crossbar (2), and second end of first transmission part (4) is connected second crossbar (3), and the middle part of first transmission part (4) is protruding to the direction close to first diaphragm assembly (9a) and is connected first diaphragm assembly (9a); Second transmission part (5), first end of second transmission part (5) is connected first crossbar (2), and second end of second transmission part (5) is connected second crossbar (3), and the middle part of second transmission part (5) is recessed to the direction close to second diaphragm assembly (9b) and is connected second diaphragm assembly (9b), wherein, first end of second transmission part (5) is located on the side of first end of first transmission part (4) close to first diaphragm assembly (9a), and second end of second transmission part (5) is located on the side of second end of first transmission part (4) close to first diaphragm assembly (9a); Driving device (101), driving device (101) is configured as driving first crossbar (2) and second crossbar (3) are away from each other, and first crossbar (2) and second crossbar (3) drive the middle part of first transmission part (4) and the middle part of second transmission part (5) are close to each other;Driving device (101) is also configured as driving first crossbar (2) and second crossbar (3) are close to each other, and first crossbar (2) and second crossbar (3) drive the middle part of first transmission part (4) and the middle part of second transmission part (5) are away from each other; Wherein, first end of first transmission part (4) is connected the bottom surface of first crossbar (2), and second end of first transmission part (4) is connected the bottom surface of second crossbar (3);And / or, first end of second transmission part (5) is connected the top surface of first crossbar (2), and second end of second transmission part (5) is connected the top surface of second crossbar (3).

2. Sound producing device (100) according to claim 1, characterized in that The middle part of first transmission part (4) is equipped with first avoiding hole (444), and the middle part of second transmission part (5) passes through first avoiding hole (444), and / or, the middle part of second transmission part (5) is equipped with second avoiding hole (544), and the middle part of first transmission part (4) passes through second avoiding hole (544).

3. The sound producing device (100) according to claim 1, characterized in that The middle part of the first transmission member (4) is convex relative to the top surface of the first crossbar (2) and the top surface of the second crossbar (3); and / or, the middle part of the second transmission member (5) is convex relative to the bottom surface of the first crossbar (2) and the bottom surface of the second crossbar (3).

4. The sound producing device (100) according to claim 1, characterized in that The first crossbar (2) comprises a first sub-connection part (231) and a second sub-connection part (232), the bottom surface (2322) of the second sub-connection part (232) of the first crossbar (2) is convex relative to the bottom surface (2312) of the first sub-connection part (231) of the first crossbar (2), the second crossbar (3) comprises a first sub-connection part (331) and a second sub-connection part (332), the bottom surface (3322) of the second sub-connection part (332) of the second crossbar (3) is convex relative to the bottom surface (3312) of the first sub-connection part (331) of the second crossbar (3), the first end part of the first transmission member (4) is fixed to the bottom surface (2322) of the second sub-connection part (232) of the first crossbar (2), and the second end part of the first transmission member (4) is fixed to the bottom surface (3322) of the second sub-connection part (332) of the second crossbar (3); And / or, the top surface (2321) of the second sub-connection part (232) of the first crossbar (2) is convex relative to the top surface (2311) of the first sub-connection part (231) of the first crossbar (2), the top surface (3321) of the second sub-connection part (332) of the second crossbar (3) is convex relative to the top surface (3311) of the first sub-connection part (331) of the second crossbar (3), the first end part of the second transmission member (5) is fixed to the top surface (2321) of the second sub-connection part (232) of the first crossbar (2), and the second end part of the second transmission member (5) is fixed to the top surface (3321) of the second sub-connection part (332) of the second crossbar (3).

5. Sound producing device (100) according to any one of claims 1 to 4, 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), and the second plate member (442) is convex relative to the same side of the fourth plate member (41) and the fifth plate member (43), wherein the connection part of adjacent two plate members can be bent; The fourth plate member (41) constitutes the first end part of the first transmission member (4), the fifth plate member (43) constitutes the second end part 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 part of the first transmission member (4).

6. Sound producing device (100) according to claim 5, characterized in that The fourth plate member (41) is arranged at an obtuse angle with the first plate member (441), the first plate member (441) is arranged at an obtuse angle with the second plate member (442), the second plate member (442) is arranged at an obtuse angle with the third plate member (443), and the third plate member (443) is arranged at an obtuse angle with the fifth plate member (43).

7. The sound producing device (100) according to claim 5, characterized in that The connecting area of the fourth plate member (41) and the first plate member (441) is greater than the connecting area of the first plate member (441) and the second plate member (442).

8. The sound producing device (100) according to claim 5, 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). The number of the first connecting members (44) is multiple, and the space between adjacent two first connecting members (44) constitutes a first avoiding space, and the middle part of the second transmission member (5) passes through the first avoiding space.

9. The sound producing device (100) according to claim 5, characterized in that The first transmission member (4) further comprises a first fixing member (48a), the first fixing member (48a) comprises a first end portion (481a), a middle portion (482a), and a second end portion (483a) connected in sequence, and the connecting part of the first end portion (481a) of the first fixing member (48a) and the middle portion (482a) of the first fixing member (48a) and the connecting part of the second end portion (483a) of the first fixing member (48a) and the middle portion (482a) of the first fixing member (48a) can be bent. The first end portion (481a) of the first fixing member (48a) is fixed on the first plate member (441) of the first transmission member (4), the second end portion (483a) of the first fixing member (48a) is fixed on the stand (1), and the middle portion (482a) of the first fixing member (48a) is arranged at an obtuse angle with the first plate member (441) of the first transmission member (4).

10. The sound producing device (100) according to any one of claims 1 to 4, 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 integral structure, and the plurality of hard patches (46) are fixed at the middle portion (452) of the flexible member (45) at intervals. Alternatively, the first transmission member (4) comprises a plurality of hard members (47a) and a plurality of injection members (47b), and adjacent two hard members (47a) are connected through an injection member (47b).

11. The sound producing device (100) according to any one of claims 1 to 4, characterized in that The sound generating device (100) comprises a first elastic member (8a), and the first elastic member (8a) is connected between the first horizontal rod (2) and the first end portion of the stand (1).

12. The sound producing device (100) according to claim 11, characterized in that The first elastic member (8a) comprises a first end portion (81a), a middle portion (82a), and a second end portion (83a) connected in sequence, the first end portion (81a) of the first elastic member (8a) is fixedly connected to the stand (1), and the second end portion (83a) of the first elastic member (8a) is fixedly connected to the first horizontal rod (2). The middle portion (82a) of the first elastic member (8a) surrounds a first space (84a).

13. The sound producing device (100) according to claim 12, characterized in that The first elastic member (8a) is connected by a first sub-folded ring (85a) and a second sub-folded ring (86a), and the middle part (852a) of the first sub-folded ring (85a) and the middle part (862a) of the second sub-folded ring (86a) enclose the first space (84a).

14. The sound producing device (100) according to any one of claims 1 to 4, 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 yoke (1), and the other is fixed to the first crossbar (2), and the first voice coil (6a) cooperates with the first magnetic circuit system (7a) to drive the first crossbar (2) and the second crossbar (3) away from each other or close 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 yoke (1), and the other is fixed to the second crossbar (3), and the second voice coil (6b) cooperates with the second magnetic circuit system (7b) to drive the first crossbar (2) and the second crossbar (3) away from each other or close to each other.

15. The sound producing device (100) according to claim 14, characterized in that The first magnetic circuit system (7a) is fixed to the first end of the yoke (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 assembly (70A) and a second magnetic circuit assembly (70B), and the first magnetic circuit assembly (70A) and the second magnetic circuit assembly (70B) are located on both sides of the winding plane of the first voice coil (6a).

16. The sound producing device (100) according to claim 15, characterized in that The first magnetic circuit assembly (70A) comprises a first magnet (711a), a second magnet (712a), a third magnet (713a), a fourth magnet (714a) and a fifth magnet (715a), 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 parallel to the first direction, 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), and the first direction is the direction of the first crossbar (2) pointing to the second crossbar (3), and the third direction is the direction of the second diaphragm assembly (9b) pointing to the first diaphragm assembly (9a).

17. The sound producing device (100) according to claim 16, 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 avoiding gap (710a) configured to provide a moving space for the first horizontal rod (2) when the first horizontal rod (2) moves relative to the yoke (1).

18. The sound producing device (100) according to claim 15, characterized in that The first magnetic circuit assembly (70A) comprises a plurality of magnets arranged in a Halbach magnet array. Alternatively, the first magnetic circuit assembly (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 a 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 assembly (70A) are parallel to the first direction, the polarization direction of the second magnetic member (75a) is opposite to that of the first magnetic member (71a), and the polarization direction of the third magnetic member (79a) is the same as that of the first magnetic member (71a). Alternatively, the first magnetic circuit assembly (70A) comprises a first magnet (711a) and a second magnet (712a), the arrangement directions of the first magnet (711a) and the second magnet (712a) are parallel to a first direction, the polarization direction of the first magnet (711a) is opposite to that of the second magnet (712a), and is parallel to a third direction, the first direction is the direction of the first horizontal rod (2) pointing to the second horizontal rod (3), and the third direction is the direction of the second diaphragm assembly (9b) pointing to the first diaphragm assembly (9a).

19. The sound producing device (100) according to any one of claims 15 to 18, characterized in that The sound generating device (100) comprises a third voice coil (6c) located between the first magnetic circuit assembly (70A) and the second magnetic circuit assembly (70B) and spaced apart from the first voice coil (6a).

20. The sound producing device (100) according to any one of claims 15 to 18, characterized in that The sound generating device (100) further comprises a third elastic member (8c). The third elastic member (8c) connects the yoke (1) and the first horizontal rod (2), and can provide elastic force in a first direction, the first direction being the direction of the first horizontal rod (2) pointing to the second horizontal rod (3).

21. The sound producing device (100) according to claim 20, characterized in that The third elastic member (8c) comprises an insulating portion (84c), a first conductive portion (85c) and a second conductive portion (86c), and 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 portion (85c) is electrically connected to the input end of the first voice coil (6a), and the second conductive portion (86c) is electrically connected to the output end of the first voice coil (6a).

22. The sound production device (100) according to any one of claims 1 to 4, characterized in that The first diaphragm assembly (9a) comprises a first diaphragm (90a) and a first reinforcing member (93a). The first diaphragm (90a) is fixed to the yoke (1), and the middle portion 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 located on the side of the first diaphragm (90a) facing the second diaphragm assembly (9b), and is arranged apart from the middle part of the first transmission member (4) or is fixed on the middle part of the first transmission member (4).

23. The sound producing device (100) according to claim 22, characterized in that The first reinforcing member (93a) comprises a main body part (932a), a first bending part (931a) and a second bending part (933a), and the main body part (932a) is fixed on the first diaphragm (90a); The first bending part (931a) and the second bending part (933a) are respectively connected to the two sides of the main body part (932a), and the first bending part (931a) and the second bending part (933a) are bent away from the side of the main body part (932a) facing the first diaphragm (90a).

24. The sound producing device (100) according to claim 22, characterized in that The second diaphragm assembly (9b) comprises a second diaphragm (90b) and a second reinforcing member (93b); The second diaphragm (90b) is fixed on the yoke (1), and 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 located on the side of the second diaphragm (90b) facing the first diaphragm assembly (9a), and is arranged apart from the middle part of the second transmission member (5) or is fixed on the middle part of the second transmission member (5).

25. The sound producing device (100) according to claim 24, characterized in that The middle part (42) of the first transmission member (4) comprises a second plate member (442) connected to the first diaphragm (90a), the first reinforcing member (93a) comprises a first long side part (934a), the length extension direction of the first long side part (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 part (934a) of the first reinforcing member (93a) and the second plate member (442) of the first transmission member (4) are arranged apart 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) comprises a second plate member (542) connected to the second diaphragm (90b); the second reinforcing member (93b) comprises a second long side part (934b), the length extension direction of the second long side part (934b) is parallel to the length extension direction of the second plate member (542) of the second transmission member (5); and the second long side part (934b) of the second reinforcing member (93b) and the second plate member (542) of the second transmission member (5) are arranged apart along the width direction of the second plate member (542) of the second transmission member (5); The number of the first long side portions (934a) of the first reinforcing members (93a) plus the number of the second plate members (442) of the first transmission member (4) is equal to the number of the second long side portions (934b) of the second reinforcing members (93b) plus the number of the second plate members (542) of the second transmission member (5).

26. An electronic device (1000) characterized by: A sound production device (100) as claimed in any one of claims 1 to 25.

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