Sound generating device and electronic device

Abstract

The present invention discloses a sound generating device and an electronic device. The sound generating device includes a bracket, a vibration unit, and an elastic member. The elastic member includes at least two groups: a first elastic component having at least one first elastic connecting member, the first elastic connecting member being connected to the bracket and the vibration unit; a second elastic component having at least one second elastic connecting member, the second elastic connecting member being connected to the bracket and the vibration unit. The first elastic component and the second elastic component are fixed at different height positions in the height direction of the voice coil. It is defined that the voice coil has a first end face in the height direction. The first elastic component projects onto the first end face to form a first projection area, and the second elastic component projects onto the first end face to form a second projection area. At least part of the first projection area is located outside the second projection area; or, the first projection area overlaps with the second projection area. The technical solution of the present invention aims to ensure that when the vibration unit has a large displacement, the elastic connecting member still has good reliability and ensure the stability of the sound generating device.

Description

Technical Field

[0001] The present invention relates to the technical field of electroacoustics, and particularly to a sound generating device and an electronic device. Background Art

[0002] A sound generating device is an important acoustic component in an electronic device, which is a transducer that converts an electrical signal into a sound signal. Currently, with the continuous progress and innovation of technology, the structural design of traditional sound generating devices is also constantly seeking novelty and change. It not only needs to meet the development trend of thinning, but also pays more and more attention to performance optimization, and takes into account the simplification of the process and cost control. In existing sound generating devices, an elastic connecting member is fixedly arranged on a voice coil bobbin to prevent the voice coil from polarizing in a non-vibrating direction during vibration. With the increasing requirements for the performance of loudspeakers in the industry, when the voice coil reaches a large displacement, the reliability of ordinary elastic connecting members is relatively low, and fracture phenomena will occur, resulting in the failure of the sound generating device. Summary of the Invention

[0003] The main object of the present invention is to provide a sound generating device, aiming to ensure that even when the voice coil has a large displacement, the elastic connecting member still has good reliability and ensure the working stability of the sound generating device.

[0004] To achieve the above object, the sound generating device proposed by the present invention includes a bracket, and the sound generating device further includes:

[0005] A vibration unit, defining that the vibration unit has a height direction; and an elastic member, the elastic member includes at least two groups:

[0006] A first elastic assembly, the first elastic assembly includes at least one first elastic connecting member, one side of the first elastic connecting member is connected to the vibration unit, and the other side is connected to the bracket; and

[0007] A second elastic assembly, the second elastic assembly includes at least one second elastic connecting member, one side of the second elastic connecting member is connected to the vibration unit, and the other side is connected to the bracket, and the first elastic assembly and the second elastic assembly are fixed at different height positions in the height direction of the vibration unit;

[0008] Defining that the vibration unit has a first end face in the height direction, the first elastic assembly projects onto the plane where the first end face is located to form a first projection area, the second elastic assembly projects onto the plane where the first end face is located to form a second projection area, and at least part of the first projection area is located outside the second projection area;

[0009] Or, the first projection area overlaps with the second projection area.

[0010] In some embodiments of the present invention, the first elastic component includes a plurality of first elastic connectors, and the plurality of first elastic connectors are all located at the same height position in the height direction of the vibration unit. The projection area formed by at least one of the first elastic connectors projected onto the plane where the first end face is located is located outside the second projection area.

[0011] In some embodiments of the present invention, the second elastic component includes a plurality of second elastic connectors, and the plurality of second elastic connectors are all located at the same height position in the height direction of the vibration unit. The projection area formed by the first elastic connector projected onto the plane where the first end face is located is located outside the projection area formed by the second elastic connector projected onto the plane where the first end face is located.

[0012] In some embodiments of the present invention, the sound generating device further includes a third elastic component, and the third elastic component includes at least one third elastic connector. The first elastic connector, the second elastic connector, and the third elastic connector are fixed at different height positions in the height direction of the vibration unit;

[0013] The third elastic component projected onto the plane where the first end face is located forms a third projection area, and at least a part of the third projection area is located outside the first projection area and the second projection area;

[0014] Alternatively, the third projection area overlaps with the first projection area and / or the second projection area.

[0015] In some embodiments of the present invention, the first elastic component includes a plurality of first elastic connectors, and the plurality of first elastic connectors are all located at the same height position in the height direction of the vibration unit;

[0016] The second elastic component includes a plurality of second elastic connectors, and the plurality of second elastic connectors are all located at the same height position in the height direction of the vibration unit. The projection area formed by the plurality of first elastic connectors projected onto the plane where the first end face is located overlaps with the projection area formed by the plurality of second elastic connectors projected onto the plane where the first end face is located.

[0017] In some embodiments of the present invention, the first elastic connector and / or the second elastic connector includes:

[0018] A first connection portion, and the first connection portion is connected to the vibration unit;

[0019] A second connection portion, and the second connection portion is connected to the bracket;

[0020] A deformation part, which is located between the first connecting part and the second connecting part, and both ends of the deformation part are respectively connected to the first connecting part and the second connecting part, and at least part of the deformation part is a wound structure.

[0021] In some embodiments of the present invention, the deformation part includes a first end connected to the first connecting part and a second end connected to the second connecting part, and a central region is provided between the first end and the second end;

[0022] The deformation part extends from the first end in a straight line and / or a curve in a first direction to the central region, and then extends from the central region in a straight line and / or a curve in a direction opposite to the first direction to the second end to form.

[0023] In some embodiments of the present invention, the deformation part is arranged in a spiral structure;

[0024] And / or, the deformation part is a wound linear structure.

[0025] In some embodiments of the present invention, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a linear structure formed by winding a single metal wire;

[0026] Or, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a linear structure formed by winding at least two metal wires connected in parallel side by side into one body;

[0027] Or, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a linear structure formed by winding at least two metal wires wound around and intertwined with each other into one body.

[0028] In some embodiments of the present invention, the linear structure formed by winding a single metal wire includes a first line segment and a second line segment, and the wire diameter of the second line segment is greater than the wire diameter of the first line segment;

[0029] Or, the linear structure formed by winding a single metal wire has a plurality of cross-sections, and the widths of the plurality of cross-sections are different.

[0030] In some embodiments of the present invention, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a stamping structure;

[0031] And / or, the cross-sectional width of at least one of the first elastic connectors is greater than the cross-sectional widths of the other first elastic connectors;

[0032] And / or, the cross-sectional width of at least one of the second elastic connectors is greater than the cross-sectional widths of the other second elastic connectors;

[0033] And / or, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a wound linear structure.

[0034] In some embodiments of the present invention, the first elastic connector includes:

[0035] At least two deformation parts, at least two of the deformation parts are arranged at intervals and connected to the first connection part;

[0036] At least two second connection parts, at least one of the second connection parts is connected to a side of one of the deformation parts facing away from the first connection part, and the projection area formed by the projection of at least two of the deformation parts on the plane where the first end face is located is located outside the second projection area.

[0037] In some embodiments of the present invention, the vibration unit includes a diaphragm and a voice coil connected to the diaphragm, and the elastic component connects the voice coil and the bracket;

[0038] Or, the vibration unit includes a diaphragm, a voice coil and a drag cup, the voice coil and the drag cup are arranged on the same side of the diaphragm, and the elastic component connects the drag cup and the bracket;

[0039] And / or, the bracket is a housing or a magnetic yoke.

[0040] In some embodiments of the present invention, the voice coil includes a bobbin and a voice coil body wound outside the bobbin. When the elastic component connects the voice coil and the bracket, the voice coil body is configured to be able to receive an electrical signal, and the first elastic component is configured to be electrically connected to the voice coil body to input an electrical signal to the voice coil body, and the second elastic component is connected to the bobbin;

[0041] Or, the voice coil includes a bobbin and a voice coil body wound outside the bobbin. When the elastic component connects the voice coil and the bracket, the voice coil body is configured to be able to receive an electrical signal, and the second elastic component is configured to be electrically connected to the voice coil body to input an electrical signal to the voice coil body, and the first elastic component is connected to the bobbin;

[0042] Or, the voice coil includes a bobbin and a voice coil body wound outside the bobbin. When the elastic component connects the voice coil and the bracket, the voice coil body is configured to be able to receive an electrical signal, and both the first elastic component and the second elastic component are configured to be electrically connected to the voice coil body to input an electrical signal to the voice coil body.

[0043] In some embodiments of the present invention, the material of at least one of the first elastic connectors and / or the material of at least one of the second elastic connectors includes a conductive material. One side of at least one of the first elastic connectors and / or at least one of the second elastic connectors is electrically connected to the voice coil body, and the other side is for electrically connecting to an external circuit.

[0044] In some embodiments of the present invention, the first elastic connector and / or the second elastic connector is a structure formed by an elastic material, and the conductive material is formed on the surface of the first elastic connector and / or the second elastic connector by electroplating to form a metal coating;

[0045] Alternatively, the conductive material is formed by composite / etching on the surface of the first elastic connector and / or the second elastic connector to form a metal film layer;

[0046] The metal coating / metal film layer forms an electrical conduction path connecting the external circuit and the voice coil body.

[0047] In some embodiments of the present invention, the material of the first elastic connector and / or the second elastic connector includes a non-magnetic material.

[0048] In some embodiments of the present invention, the number of voice coils is multiple, and each voice coil is connected to at least one first elastic component and at least one second elastic component;

[0049] Alternatively, each voice coil is connected to a set of the elastic components.

[0050] In some embodiments of the present invention, the housing is further provided with a plurality of fixing members, and the fixing members are used to fix one side of the first elastic connector and / or the second elastic connector away from the voice coil.

[0051] In some embodiments of the present invention, the material of the fixing member includes a conductive material and is used to connect to an external circuit.

[0052] The present invention also provides an electronic device, the electronic device includes a sound generating device, the sound generating device includes a bracket, and the sound generating device further includes:

[0053] A vibration unit, defining that the vibration unit has a height direction; and an elastic component, the elastic component includes at least two groups:

[0054] A first elastic component, the first elastic component includes at least one first elastic connector, one side of the first elastic connector is connected to the vibration unit, and the other side is connected to the bracket; and

[0055] A second elastic component, the second elastic component includes at least one second elastic connecting member, one side of the second elastic connecting member is connected to the vibration unit, and the other side is connected to the bracket, and the first elastic component and the second elastic component are fixed at different height positions in the height direction of the vibration unit;

[0056] It is defined that the voice coil has a first end face in the height direction, the first elastic component projects onto the plane where the first end face is located to form a first projection area, the second elastic component projects onto the plane where the first end face is located to form a second projection area, and at least part of the first projection area is located outside the second projection area;

[0057] Or, the first projection area overlaps with the second projection area.

[0058] The sound generating device of the present invention is provided with a bracket, a vibration unit and an elastic member, and a first elastic component having at least one first elastic connecting member is provided, the first elastic connecting member connects the vibration unit and the bracket, and a second elastic component having at least one second elastic connecting member is provided, the second elastic connecting member connects the vibration unit and the bracket, wherein the first elastic component and the second elastic component are fixed at different height positions in the height direction of the vibration unit. Further, it is defined that the vibration unit has a first end face in the height direction, the first elastic component projects onto the plane where the first end face is located to form a first projection area, the second elastic component projects onto the plane where the first end face is located to form a second projection area, and at least part of the first projection area is located outside the second projection area. Since a plurality of elastic connecting members are provided to simultaneously perform centering support on the vibration unit, the connection positions between the elastic connecting members and the vibration unit are increased. Even when the vibration unit has a large displacement, the vibration unit can still be well fixed. And because the first elastic component and the second elastic component are arranged in a completely overlapping, partially overlapping or completely misaligned manner in the length direction of the vibration unit, the elastic connecting members are well fixed at different positions at different heights of the vibration unit, improving the centering effect of the vibration unit. And the overlapping arrangement can make the connection positions between the vibration unit and the elastic connecting members concentrated, which is convenient for ensuring the uniformity of the vibration of the vibration unit; the misaligned arrangement makes there be a certain avoidance between the elastic components of different layers, which is more convenient for the processing and fixing of the parts where the elastic connecting members are connected to the vibration unit, improving the connection effect. In this way, the technical solution of the present invention can ensure that even when the vibration unit has a large displacement, the elastic connecting members still have good reliability, ensuring the working stability of the sound generating device. Description of the Drawings

[0059] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0060] Figure 1 Schematic structural diagram of an embodiment of the sound generating device of the present invention;

[0061] Figure 2 Top view of an embodiment of the sound generating device of the present invention;

[0062] Figure 3 Exploded view of an embodiment of the first elastic component and the second elastic component of the sound generating device of the present invention;

[0063] Figure 4 Schematic structural diagram of another embodiment of the sound generating device of the present invention;

[0064] Figure 5 Side view of an embodiment of the sound generating device of the present invention;

[0065] Figure 6 Top view of an embodiment of the sound generating device of the present invention;

[0066] Figure 7 Schematic structural diagram of another embodiment of the sound generating device of the present invention;

[0067] Figure 8 Side view of an embodiment of the sound generating device of the present invention;

[0068] Figure 9 Schematic structural diagram of another embodiment of the sound generating device of the present invention;

[0069] Figure 10 Schematic structural diagram of an embodiment of the first elastic connecting member of the sound generating device of the present invention;

[0070] Figure 11 Schematic structural diagram of another embodiment of the first elastic connecting member of the sound generating device of the present invention;

[0071] Figure 12 Schematic structural diagram of another embodiment of the first elastic connecting member of the sound generating device of the present invention;

[0072] Figure 13 Schematic structural diagram of another embodiment of the first elastic connecting member of the sound generating device of the present invention;

[0073] Figure 14 Schematic structural diagram of another embodiment of the first elastic connecting member of the sound generating device of the present invention;

[0074] Figure 15 This is a schematic structural diagram of another embodiment of the sound generating device of the present invention.

[0075] Explanation of the reference numerals in the drawings:

[0076]

[0077] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0078] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a component of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0079] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0080] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0081] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0082] Please refer to Figures 1 to 15As shown, the present invention provides a sound generating device 100, the sound generating device 100 includes a bracket 80, and the sound generating device 100 further includes:

[0083] a vibration unit 90, defining that the vibration unit 90 has a height direction; and an elastic member 60, the elastic member 60 includes at least two groups:

[0084] a first elastic assembly 40, the first elastic assembly 40 includes at least one first elastic connecting member 10, one side of the first elastic connecting member 10 is connected to the vibration unit 90, and the other side is connected to the bracket 80; and

[0085] a second elastic assembly 50, the second elastic assembly 50 includes at least one second elastic connecting member 20, one side of the second elastic connecting member 20 is connected to the vibration unit 90, and the other side is connected to the bracket 80, the first elastic assembly 40 and the second elastic assembly 50 are fixed at different height positions in the height direction of the vibration unit 90;

[0086] defining that the vibration unit 90 has a first end face 331 in the height direction, the first elastic assembly 40 projects onto the plane where the first end face 331 is located to form a first projection area, the second elastic assembly 50 projects onto the plane where the first end face 331 is located to form a second projection area, and at least part of the first projection area is located outside the second projection area;

[0087] Or, the first projection area overlaps with the second projection area.

[0088] In one embodiment, the sound generating device 100 includes a vibration unit 90, a magnetic circuit system 101, and a housing for mounting and fixing the vibration unit 90 and the magnetic circuit system 101; wherein, the vibration unit 90 includes a diaphragm 91 and a voice coil 30 coupled to the lower side of the diaphragm 91; the magnetic circuit system 101 includes an upper magnetic conductive plate, a magnet, and a lower magnetic conductive plate, wherein the upper magnetic conductive plate and the lower magnetic conductive plate are magnetic conductive structures for correcting the magnetic lines of force generated by the magnet, and the magnetic circuit system 101 forms a magnetic gap 1011, and the voice coil 30 is disposed in the magnetic gap 1011 of the magnetic circuit system 101. In the present invention, the lower magnetic conductive plate may be a U-shaped structure including a bottom wall and side walls, and a magnetic gap 1011 is formed between the side walls of the upper magnetic conductive plate, the magnet, and the lower magnetic conductive plate, and a relatively uniform magnetic field is formed in the magnetic gap 1011, and the voice coil 30 is disposed in the magnetic gap 1011 having the relatively uniform magnetic field. The voice coil 30 is usually wound by a metal wire. After the voice coil 30 is energized, it vibrates up and down under the action of the Ampere force in the magnetic field. The vibration direction of the voice coil 30 is represented by the vertical direction or the up and down direction, and the direction perpendicular to the vibration of the voice coil 30 is represented by the horizontal direction; since the diaphragm 91 and the voice coil 30 are fixedly coupled together by bonding or the like, therefore, when the voice coil 30 vibrates up and down according to the electrical signal, it will also drive the diaphragm 91 to vibrate and generate sound waves.

[0089] However, since the magnetic field in the magnetic gap 1011 is only relatively uniform and not absolute, the position of the voice coil 30 will also change during the vibration of the voice coil 30, and the magnetic lines of force on the upper side of the magnetic gap 1011 are arc-shaped lines. Therefore, the Ampere force received by the voice coil 30 is not only in the vertical direction, but also includes Ampere forces in other directions, which causes the voice coil 30 to be prone to non-vertical polarization during vibration, and further affects the vibration of the diaphragm 91.

[0090] To prevent the polarization from occurring as described above, an elastic member 60 connecting the voice coil 30 and the bracket 80 can perform centering support on the polarization of the voice coil 30, that is, ensure that the voice coil 30 vibrates along the vibration direction in the magnetic gap 1011. In one embodiment, the elastic member 60 is a centering support piece or a planar spring.

[0091] Referring to Figure 15 , in one embodiment, the vibration unit 90 further includes a drag cup 92 disposed on the diaphragm 91, and the drag cup 92 and the voice coil 30 are disposed on the same side of the diaphragm 91. When there is a magnetic gap 1011, the drag cup 92 is located outside the magnetic gap 1011. An elastic member 60 connecting the drag cup 92 and the bracket 80 can also perform centering support on the polarization of the voice coil 30, that is, ensure that the voice coil 30 vibrates along the vibration direction in the magnetic gap 1011.

[0092] In one embodiment, the bracket 80 is a housing or a yoke. Since the housing can be used to carry the speaker unit, setting the bracket 80 as the housing can facilitate the fixation of the elastic member 60 on the side away from the vibration unit 90 and improve the centering support effect of the elastic member 60. Since most of the vibration unit 90 is close to the magnetic gap 1011 and its distance from the yoke is relatively close, connecting the side of the elastic member 60 away from the vibration unit 90 to the yoke can, on the one hand, save the installation distance of the elastic member 60 and facilitate improving the centering support effect of the elastic member 60. It should be noted that the fixing methods of the elastic member 60 in this embodiment include various combinations: the elastic member 60 is connected to the voice coil 30 and the housing, the elastic member 60 is connected to the voice coil 30 and the yoke, the elastic member 60 is connected to the cup 92 and the housing, and the elastic member 60 is connected to the cup 92 and the yoke, all of which can better ensure the centering support effect of the elastic member 60.

[0093] It can be understood that the cup 92 can be arranged along the circumference of the voice coil 30, specifically, it can be arranged around the voice coil 30, or the cup 92 is formed by a plurality of discontinuous cup segments, and the plurality of cup segments are arranged at intervals and are evenly distributed along the circumference of the voice coil 30.

[0094] It should be noted that the vibration unit 90 has opposite first end face 331 and second end face in the height direction. In this embodiment, only one of the end faces is selected for description, that is, the first end face 331.

[0095] The sound generating device 100 of the present invention is provided with a bracket 80, a vibration unit 90 and an elastic member 60, and a first elastic assembly 40 having at least one first elastic connecting member 10, the first elastic connecting member 10 connecting the vibration unit 90 and the bracket 80, and a second elastic assembly 50 having at least one second elastic connecting member 20, the second elastic connecting member 20 connecting the vibration unit 90 and the bracket 80, wherein the first elastic assembly 40 and the second elastic assembly 50 are fixed at different height positions in the height direction of the vibration unit 90. Further, it is defined that the vibration unit 90 has a first end face 331 in the height direction, the first elastic assembly 40 projects onto the plane where the first end face 331 is located to form a first projection area, and the second elastic assembly 50 projects onto the plane where the first end face 331 is located to form a second projection area, and at least part of the first projection area is located outside the second projection area. Since a plurality of elastic connecting members are provided to simultaneously perform centering support on the vibration unit 90, the connection positions between the elastic member 60 and the vibration unit 90 are increased. Even when the vibration unit 90 has a large displacement, the vibration unit 90 can still be well fixed. And because the first elastic assembly 40 and the second elastic assembly 50 are partially overlapped or completely misaligned in the length direction of the vibration unit 90, the elastic connecting members are well fixed at different positions at different heights of the vibration unit 90, improving the centering effect of the vibration unit 90. And the overlapping setting method can make the connection positions between the vibration unit 90 and the elastic member 60 concentrated, facilitating the guarantee of the uniformity of the vibration of the vibration unit 90; the misaligned setting method enables a certain avoidance between different layers of elastic assemblies, making it more convenient for the parts of the elastic connecting members connected to the vibration unit 90 to be processed and fixed, improving the connection effect. Thus, the technical solution of the present invention can ensure that even when the vibration unit 90 has a large displacement, the elastic connecting members still have good reliability, guaranteeing the working stability of the sound generating device 100.

[0096] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6, in some embodiments of the present invention, the first elastic component 40 includes a plurality of first elastic connecting members 10. The plurality of first elastic connecting members 10 are all located at the same height position in the height direction of the vibration unit 90. The projection area formed by at least one of the first elastic connecting members 10 projected onto the plane where the first end face 331 is located is located outside the second projection area. Setting a plurality of first elastic connecting members 10 increases the bonding area between the first elastic component 40 and the vibration unit 90, thereby improving the fixing effect of the first elastic component 40 on the vibration unit 90. Moreover, arranging the plurality of first elastic connecting members 10 in the same plane can ensure the centering effect on the vibration unit 90 and ensure the stability of the vibration unit 90 during operation. In this embodiment, at least one of the first elastic connecting members 10 is arranged in a staggered manner relative to the second elastic component 50 in the height direction of the vibration unit 90. With this arrangement, the uniformity of the distribution of the first elastic connecting members 10 on the vibration unit 90 is higher, and the circumferential distribution of the centering support system formed by the first elastic component 40 and the second elastic component 50 relative to the vibration unit 90 is more uniform. On the one hand, it is convenient for fixing the parts where the first elastic connecting members 10 and the second elastic connecting members 20 are connected to the vibration unit 90 during processing, and on the other hand, it effectively improves the vibration stability of the vibration unit 90.

[0097] In some embodiments of the present invention, the second elastic component 50 includes a plurality of second elastic connecting members 20. The plurality of second elastic connecting members 20 are all located at the same height position in the height direction of the vibration unit 90. The projection area formed by the first elastic connecting member 10 projected onto the plane where the first end face 331 is located is located outside the projection area formed by the second elastic connecting member 20 projected onto the first end face 331. Setting a plurality of second elastic connecting members 20 increases the bonding area between the second elastic component 50 and the vibration unit 90, thereby improving the fixing effect of the second elastic component 50 on the vibration unit 90. Moreover, arranging the plurality of second elastic connecting members 20 in the same plane can ensure the centering effect on the vibration unit 90 and ensure the stability of the vibration unit 90 during operation. In this embodiment, the first elastic connecting member 10 is arranged in a staggered manner relative to the second elastic connecting member 20 in the height direction of the vibration unit 90. With this arrangement, the uniformity of the distribution of the second elastic connecting members 20 on the vibration unit 90 is further improved, and the circumferential distribution of the centering support system formed by the first elastic component 40 and the second elastic component 50 relative to the vibration unit 90 is more uniform. On the one hand, it is convenient for fixing the parts where the first elastic connecting members 10 and the second elastic connecting members 20 are connected to the vibration unit 90 during processing, and on the other hand, it effectively improves the vibration stability of the vibration unit 90.

[0098] Refer to Figure 7 , Figure 8, in some embodiments of the present invention, the sound generating device 100 further includes a third elastic component 70. The third elastic component 70 includes at least one third elastic connecting member 71. The first elastic connecting member 10, the second elastic connecting member 20, and the third elastic connecting member 71 are fixed at different height positions in the height direction of the vibration unit 90;

[0099] The projection of the third elastic component 70 on the plane where the first end face 331 is located forms a third projection area. At least part of the third projection area is located outside the first projection area and the second projection area; alternatively, the third projection area overlaps with the first projection area and / or the second projection area.

[0100] In this embodiment, by providing the third elastic component 70 with at least one third elastic connecting member 71, and since the first elastic component 40, the second elastic component 50, and the third elastic component 70 are arranged in a completely overlapping, partially overlapping, or completely misaligned manner in the length direction of the vibration unit 90, the elastic connecting members are well fixed at different positions at different heights of the vibration unit 90, improving the centering effect of the vibration unit 90. And the overlapping arrangement can make the connection positions between the vibration unit 90 and the elastic member 60 concentrated, facilitating the guarantee of the uniformity of the vibration of the vibration unit 90; the misaligned arrangement enables a certain avoidance between different layers of elastic components, making it more convenient for the part of the elastic connecting member connected to the vibration unit 90 to be processed and fixed, improving the connection effect. It can be understood that, when the height permits, a fourth elastic component or more elastic components that are partially overlapping or completely misaligned with the first elastic component 40, the second elastic component 50, and the third elastic component 70 in the length direction of the vibration unit 90 can also be provided. As the number of elastic components increases, the misaligned arrangement can better ensure the connection effect between each group of elastic connecting members and the vibration unit 90 and the housing, greatly improving the centering effect of the vibration unit 90.

[0101] Referring to Figures 7 to 9 , in some embodiments of the present invention, the first elastic component 40 includes a plurality of first elastic connecting members 10. The plurality of first elastic connecting members 10 are all located at the same height position in the height direction of the vibration unit 90;

[0102] The second elastic component 50 includes a plurality of second elastic connectors 20, and the plurality of second elastic connectors 20 are all located at the same height position in the height direction of the vibration unit 90. The projection area formed by the projection of the plurality of first elastic connectors 10 on the plane where the first end face 331 is located overlaps with the projection area formed by the projection of the plurality of second elastic connectors 20 on the plane where the first end face 331 is located. In this embodiment, by providing a plurality of first elastic connectors 10 and a plurality of second elastic connectors 20, the combination area of ​​the first elastic connector 10 group and the second elastic connector 20 group relative to the vibration unit 90 is increased, thereby improving the fixing effect of the elastic connector on the vibration unit 90, and the overlapping arrangement can make the connection position of the vibration unit 90 and the elastic component 60 concentrated, so as to ensure the uniformity of the vibration of the vibration unit 90.

[0103] Reference Figures 10 to 14 In some embodiments of the present invention, the first elastic connector 10 and / or the second elastic connector 20 include:

[0104] A first connection portion 1, wherein the first connection portion 1 is connected to the vibration unit 90;

[0105] A second connecting portion 2, wherein the second connecting portion 2 is connected to the bracket 80;

[0106] The deformation part 3 is located between the first connection part 1 and the second connection part 2, and the two ends of the deformation part 3 are respectively connected to the first connection part 1 and the second connection part 2, and at least part of the first elastic connection member 10 is a wound structure.

[0107] The elastic connector is connected and matched with the vibration unit 90 through its first connection part 1; in addition, the elastic connector also constrains the reciprocating vibration of the vibration unit 90 according to the vibration offset state of the vibration unit 90 through the elastic deformation of its deformation part 3, so that the vibration unit 90 is stabilized in the preset central area, and the polarization of the vibration unit 90 is prevented, so that the reciprocating vibration of the vibration unit 90 is more stable. In one embodiment, the elastic connector can have both the functions of conductivity and centering, and can simultaneously realize the conduction function of the internal and external circuits and the centering function of the vibration of the vibration unit 90, which can not only save space in the cavity of the sound-generating device 100, but also effectively simplify the assembly process of the sound-generating device 100.

[0108] In this embodiment, at least a part of the first elastic connecting member 10 / second elastic connecting member 20 is a wound linear structure. The wound linear part has better elasticity and is easy to manufacture, and can provide good compliance when the vibration displacement of the vibration unit 90 is relatively large. It can be understood that the first elastic connecting member 10 / second elastic connecting member 20 can be a combination of a linear structure and a plate-like structure, or is entirely linearly arranged, or is a combination of a linear structure and a strip-like structure.

[0109] In one embodiment, the elastic connecting member can be made of a non-magnetic material, generally a non-ferrous metal, specifically at least one of phosphor bronze, iron, steel or alloy materials. Such materials are not easily affected by environmental changes, are not easily deformed in high-temperature and high-humidity environments, and their hardness will not change, and they have good fatigue resistance, enabling the sound generating device 100 to work in harsh environments, optimizing the product performance, and improving the application versatility of the sound generating device 100.

[0110] Referring to Figure 10 , in some embodiments of the present invention, the deformation part 3 includes a first end connected to the first connecting part 1 and a second end connected to the second connecting part 2, and a central region is provided between the first end and the second end; the deformation part 3 extends linearly and / or curvilinearly from the first end in a first direction to the central region, and then extends linearly and / or curvilinearly from the central region in a direction opposite to the first direction to the second end. It can be understood that the first end extends linearly and / or curvilinearly in the first direction to the central region to form a first deformation segment 5; the first deformation segment 5 located in the central region extends linearly and / or curvilinearly in a direction opposite to the first direction to the second end to form a second deformation segment 6, and the first deformation segment 5 and the second deformation segment 6 are connected to form the deformation part 3. Such a setting enables the deformation part 3 to have a relatively small space occupation, and both the first deformation segment 5 and the second deformation segment 6 have a relatively long length, so as to obtain better elasticity. In this embodiment, the deformation part 3 of the elastic connecting member can be a planar structure, and the deformation part 3, the first connecting part 1 and the second connecting part 2 are located in the same horizontal plane, so that the elastic connecting member as a whole is a planar structure. Compared with the existing sheet-shaped elastic connecting member in a wave shape, the overall flatness of the elastic connecting member is improved in this embodiment, and the height of the sound generating device 100 in the vertical direction is further reduced, realizing the design concept of product thinning.

[0111] The first direction may be the clockwise direction. The shape of the deformation part 3 may be a polygonal spiral structure, specifically a quadrilateral, pentagon, hexagon, etc., or a circular or elliptical structure, or a structure combining a straight line and a curve. For example, part of the first deformation segment 5 is a straight line and the other part is an arc, and its specific shape may be an alternately connected shape of an arc and a straight line. It should be noted that the alternation here is not limited to one-by-one alternation, but may also be one-to-many or many-to-many alternation.

[0112] In some embodiments of the present invention, the deformation part 3 is arranged in a spiral structure; the spiral structure enables the deformation part 3 to form a structure with good elastic deformation degree through spiral extension in a limited space. Furthermore, on the one hand, the deformation part 3 can ensure good centering support for the vibration unit 90, and on the other hand, it saves the installation space.

[0113] And / or, the deformation part 3 is a wound wire structure. The wound wire structure has better elastic deformation degree, is easy to manufacture, and can provide good compliance when the vibration displacement of the vibration unit 90 is large.

[0114] Referring to Figures 10 to 12 In some embodiments of the present invention, at least one of the first elastic connectors 10 and / or at least one of the second elastic connectors 20 is a wire structure wound from a single metal wire; or, at least one of the first elastic connectors 10 and / or at least one of the second elastic connectors 20 is a wire structure wound after at least two metal wires are connected in parallel side by side; or, at least one of the first elastic connectors 10 and / or at least one of the second elastic connectors 20 is a wire structure wound after at least two metal wires are wound and intertwined with each other. In this embodiment, a variety of wire structures wound from metal wires are provided. The elastic connector made of a single metal wire has good elastic deformation function; the elastic connector wound by two parallel metal wires has certain structural strength and certain elastic deformation function; the elastic connector wound by multiple intertwined metal wires has good structural strength. The foregoing elastic connectors can be selected according to the shape of the vibration unit 90, the type of the speaker, etc., as long as they can better adapt to the vibration of the vibration unit 90. Specifically, in one embodiment, the first elastic component 40 includes three first elastic connectors 10. One first elastic connector 10 is made of a single metal wire, one first elastic connector 10 is made of parallel-wound metal wires, and the other first elastic connector 10 is made of multiple intertwined metal wires. The three first elastic connectors 10 are arranged on the same plane of the vibration unit 90. In this way, it can better provide centering support for the vibration unit 90 and improve the working stability of the vibration unit 90.

[0115] In some embodiments of the present invention, the linear structure formed by winding a single metal wire includes a first line segment 7 and a second line segment 8, and the wire diameter of the second line segment 8 is greater than that of the first line segment 7. It should be noted that the line segments in this embodiment can be distinguished according to the bending direction. For example, the wound linear structure has a straight line segment and a curved line segment. It can be considered that the straight line segment is one line segment and the curved line segment is one line segment; and, in the curved line segment, the line segment bent clockwise is one line segment, and the line segment bent counterclockwise is one end line segment; and, the straight line segment extending in one direction is one line segment, and the straight line segment extending in the other direction is one line segment, or the line segments are distinguished by defining a certain length, and the specific length can be limited according to actual needs, such as any value between 0.1 um and 1 mm. By setting different wire diameters, the structural strength of certain positions of the elastic connector can be made higher, and since the wire diameters of the second line segment 8 and the first line segment 7 are different, the energies required for the first line segment 7 and the second line segment 8 to generate vibrations with the same frequency are different. In this way, the resonance frequency of the elastic connector can be further changed, and the probability of resonance of the elastic connector is greatly reduced.

[0116] Alternatively, the linear structure formed by winding a single metal wire has a plurality of cross-sections, and the widths of the plurality of cross-sections are different. It can be understood that the elastic connector at this time can be in the form of a linear structure with a plurality of different cross-section widths. For example, the cross-section width on the side close to the vibration unit 90 is smaller, while the cross-section width far from the vibration unit 90 is larger. In this way, the elastic connector can have a larger elastic deformation degree near the vibration unit 90 and a larger structural stability far from the vibration unit 90.

[0117] In some embodiments of the present invention, at least one of the first elastic connectors 10 and / or at least one of the second elastic connectors 20 is a stamping structure; the elastic connector in this embodiment is a narrow and long structure formed by integral stamping. It is simple and convenient to manufacture, simplifies the manufacturing process, has high manufacturing efficiency, reduces the manufacturing cost, and the flatness and dimensional tolerance of the stamping elastic connector are easier to control, and the product yield is high. Moreover, the elastic connector in this embodiment will not increase the height of the sound generating device 100 in the vertical direction, occupies a small space, and is beneficial to the thinning of the product. In addition, during the process of the elastic connector following the vibration unit 90 to displace in the vertical direction, the narrow and long deformation part 3 undergoes a large enough elastic deformation. Even when the vibration displacement of the vibration unit 90 is large, the compliance of the elastic connector remains good, and sufficient displacement can be provided without affecting the vibration of the vibration unit 90, optimizing the product performance.

[0118] In some embodiments of the present invention, the cross-sectional width of at least one of the first elastic connectors 10 is greater than that of the other first elastic connectors 10; and / or, the cross-sectional width of at least one of the second elastic connectors 20 is greater than that of the other second elastic connectors 20. By providing first elastic connectors 10 with different cross-sectional widths, the first elastic assembly 40 has different degrees of elastic deformation at different positions, thereby adapting to vibration units 90 of different shapes and different types of speakers, and improving the centering effect on the vibration unit 90.

[0119] In some embodiments of the present invention, at least one of the first elastic connectors 10 and / or at least one of the second elastic connectors 20 is a wound linear structure. The wound linear structure has better elastic deformation and is easy to manufacture, and can provide good compliance when the vibration displacement of the vibration unit 90 is large. It can be understood that the types of elastic connectors in the foregoing embodiments can be arbitrarily selected for the first elastic assembly 40. For example, the first elastic assembly 40 can include first elastic connectors 10 of stamping structures, first elastic connectors 10 of wound linear structures, first elastic connectors 10 with different cross-sections, and so on. Thereby realizing different centering supports at different positions of the voice coil 30 and improving the fixing effect of the elastic member 60.

[0120] Refer to Figure 3 , Figure 13 , in some embodiments of the present invention, the first elastic connector 10 includes:

[0121] At least two deformation portions 3, at least two of the deformation portions 3 are spaced apart and connected to the first connection portion 1;

[0122] At least two second connection portions 2, at least one of the second connection portions 2 is connected to a side of one of the deformation portions 3 facing away from the first connection portion 1, and the projection regions formed by the projections of at least two of the deformation portions 3 on the plane where the first end face 331 is located are located outside the second projection region.

[0123] In this embodiment, the length of the first connecting portion 1 is relatively long, and the two deformation portions 3 are symmetrically distributed at both ends of the first connecting portion 1, or may be arranged at intervals in the middle of the first connecting portion 1. Arranging multiple deformation portions 3 enables the first elastic connecting member 10 to withstand a greater displacement of the vibration unit 90 and improves the fixing effect of the first elastic connecting member 10. The first connecting portion 1 may be arranged in an arc shape between the two deformation portions 3. The arc-shaped arrangement enables the first connecting portion 1 to have a certain deformation ability and improves the elastic deformation degree of the first elastic connecting member 10. It can be understood that when the vibration unit 90 is arranged in a rectangular shape or other shapes, the first connecting portion 1 may also be arranged in a straight line shape. And arranging multiple second connecting portions 2 can ensure the connection effect between the first elastic connecting member 10 and the housing. In this embodiment, the second connecting portion 2 may be arranged in one-to-one correspondence with the deformation portion 3, or multiple second connecting portions 2 may correspond to one deformation portion 3.

[0124] Moreover, it can be understood that since the two deformation portions 3 in this embodiment need to be connected by the first connecting portion 1, and the first connecting portion 1 is also used to connect with the vibration unit 90. When the second elastic connecting member 20 is provided, the first connecting portion 1 of the second elastic connecting member 20 may overlap with the first connecting portion 1 of the first elastic connecting member 10. At this time, as long as it is ensured that the deformation portions 3 of the first elastic connecting member 10 and the deformation portions 3 of the second elastic connecting member 20 are mutually misaligned, it is also possible to make the elastic connecting members well fixed at different positions at different heights of the vibration unit 90, improve the centering effect of the vibration unit 90, and the misaligned arrangement method enables a certain avoidance between the elastic components of different layers, making it more convenient to process and fix the part where the elastic connecting member is connected to the vibration unit 90 and improving the connection effect.

[0125] Refer to Figure 1 、 Figure 5 In some embodiments of the present invention, the voice coil 30 includes a bobbin 31 and a voice coil body 33 wound around the outside of the bobbin 31. When the elastic member 60 connects the voice coil 30 and the bracket 80, the voice coil body 33 is configured to be able to pass an electrical signal, and the first elastic assembly 40 is configured to be electrically connected to the voice coil body 33 to input an electrical signal to the voice coil body 33, and the second elastic assembly 50 is connected to the bobbin 31;

[0126] Alternatively, the voice coil 30 includes a bobbin 31 and a voice coil body 33 wound around the outside of the bobbin 31. When the elastic member 60 connects the voice coil 30 and the bracket 80, the voice coil body 33 is configured to be able to pass an electrical signal, and the second elastic assembly 50 is configured to be electrically connected to the voice coil body 33 to input an electrical signal to the voice coil body 33, and the first elastic assembly 40 is connected to the bobbin 31;

[0127] Alternatively, the voice coil 30 includes a bobbin 31 and a voice coil body 33 wound around the outside of the bobbin 31. When the elastic member 60 connects the voice coil 30 and the bracket 80, the voice coil body 33 is configured to be able to conduct an electrical signal, and both the first elastic component 40 and the second elastic component 50 are configured to be electrically connected to the voice coil body 33 to input an electrical signal to the voice coil body 33.

[0128] In this embodiment, the first elastic component 40 can be used to supply power to the voice coil body 33 alone, or the second elastic component 50 can be used to supply power to the voice coil body 33 alone, or the first elastic component 40 and the second elastic component 50 can be used to supply power to the voice coil body 33 simultaneously. In this way, the adaptability of the power supply setting for the voice coil body 33 is increased, and the specific power supply form can be set according to actual needs.

[0129] In some embodiments of the present invention, the material of at least one of the first elastic connectors 10 and / or the material of at least one of the second elastic connectors 20 includes a conductive material. One side of at least one of the first elastic connectors 10 and / or at least one of the second elastic connectors 20 is electrically connected to the voice coil body 33, and the other side is used for electrical connection with an external circuit. With such a setting, part of the first elastic connector 10 / second elastic connector 20 can be used to power on the voice coil body 33, and the other first elastic connectors 10 / second elastic connectors 20 that are not used for power on can be made of other materials, so that the elastic deformation degrees of the first elastic component 40 and the second elastic component 50 can be adaptively adjusted according to actual needs, improving the centering support of the first elastic component 40 and the second elastic component 50 for the voice coil 30 and facilitating power on.

[0130] In some embodiments of the present invention, the first elastic connector 10 and / or the second elastic connector 20 is a structure formed by an elastic material, and the conductive material is formed on the surface of the first elastic connector 10 and / or the second elastic connector 20 by electroplating to form a metal coating;

[0131] Alternatively, the conductive material is formed on the surface of the first elastic connector 10 and / or the second elastic connector 20 by composite / etching to form a metal film layer; the metal coating / metal film layer forms a conductive path connecting the external circuit and the voice coil body 33. In this embodiment, the conductive function of the first elastic connector 10 / second elastic connector 20 can be realized by setting a metal coating or a metal film layer. The setting form of the metal coating or the metal film layer can, on the one hand, achieve good power on, and on the other hand, enable the first elastic connector 10 / second elastic connector 20 to have good structural strength and elastic deformation degree.

[0132] In one embodiment, the elastic connecting member can be made of non-magnetic materials, generally non-ferrous metals, specifically at least one of phosphor bronze, iron, steel or alloy materials. Such materials are not easily affected by environmental changes, are not easily deformed in high-temperature and high-humidity environments, and their hardness does not change. They have good fatigue resistance, enabling the sound generating device 100 to work in harsh environments, optimizing the product performance and improving the application versatility of the sound generating device 100.

[0133] In some embodiments of the present invention, the number of the vibration units 90 is multiple, and each vibration unit 90 is connected to at least one first elastic component 40 and at least one second elastic component 50. In this embodiment, the sound generating device 100 can be a multi-vibration unit sound generating device 100, and the multi-vibration unit sound generating device 100 has a more excellent sound generating effect. When adopting the multi-vibration unit 90 structure, at least one first elastic component 40 and at least one second elastic component 50, or a set of elastic components 60 are provided for each vibration unit 90, so that each vibration unit 90 can achieve good centering support when having a large displacement. For the specific effect, refer to the foregoing and will not be elaborated here.

[0134] In some embodiments of the present invention, the housing is further provided with a plurality of fixing members for fixing the side of the first elastic connecting member 10 and / or the second elastic connecting member 20 facing away from the vibration unit 90. The fixing member is an electrical connection terminal for fixing the second connection portion 2 of the first elastic connecting member 10 / the second elastic connecting member 20. When the fixing member is made of a conductive material and the first elastic connecting member 10 / the second elastic connecting member 20 also has a conductive function, power can be applied to the fixing member, and then power can be applied to the voice coil body 33 through the first elastic connecting member 10 / the second elastic connecting member 20.

[0135] The present invention further provides an electronic device, including a sound generating device 100. The sound generating device 100 includes a bracket 80. The sound generating device 100 further includes: a vibration unit 90, defining a height direction of the vibration unit 90; and an elastic member 60. The elastic member 60 includes at least two groups: a first elastic assembly 40, the first elastic assembly 40 including at least one first elastic connecting member 10, one side of the first elastic connecting member 10 being connected to the vibration unit 90 and the other side being connected to the bracket 80; and a second elastic assembly 50, the second elastic assembly 50 including at least one second elastic connecting member 20, one side of the second elastic connecting member 20 being connected to the vibration unit 90 and the other side being connected to the bracket 80. The first elastic assembly 40 and the second elastic assembly 50 are fixed at different height positions in the height direction of the vibration unit 90. Defining that the vibration unit 90 has a first end face 331 in the height direction, a first projection area is formed when the first elastic assembly 40 is projected onto the plane where the first end face 331 is located, and a second projection area is formed when the second elastic assembly 50 is projected onto the plane where the first end face 331 is located. At least part of the first projection area is located outside the second projection area; or, the first projection area overlaps with the second projection area. Since this electronic device adopts all the technical solutions of the above-mentioned all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be elaborated one by one here.

[0136] The above are only the preferred embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A sound generating device, the sound generating device comprising a bracket, characterized in that, The sound generating device further includes: a vibration unit, defining a height direction of the vibration unit; and an elastic member, the elastic member including at least two groups: a first elastic assembly, the first elastic assembly including at least one first elastic connecting member, one side of the first elastic connecting member being connected to the vibration unit and the other side being connected to the bracket; and a second elastic assembly, the second elastic assembly including at least one second elastic connecting member, one side of the second elastic connecting member being connected to the vibration unit and the other side being connected to the bracket, the first elastic assembly and the second elastic assembly being fixed at different height positions in the height direction of the vibration unit; defining a first end face of the vibration unit in the height direction, a first projection area being formed when the first elastic assembly is projected onto the plane where the first end face is located, a second projection area being formed when the second elastic assembly is projected onto the plane where the first end face is located, and at least a part of the first projection area being located outside the second projection area; or, the first projection area and the second projection area overlap; the first elastic assembly includes a plurality of first elastic connecting members, the plurality of first elastic connecting members being all located at the same height position in the height direction of the vibration unit, and a projection area formed by projecting at least one of the first elastic connecting members onto the plane where the first end face is located being located outside the second projection area; the second elastic assembly includes a plurality of second elastic connecting members, the plurality of second elastic connecting members being all located at the same height position in the height direction of the vibration unit, and a projection area formed by projecting the first elastic connecting member onto the plane where the first end face is located being located outside a projection area formed by projecting the second elastic connecting member onto the plane where the first end face is located; the elastic member is a centering support piece or a planar spring.

2. The sound generating device according to claim 1, characterized in that, The sound generating device further includes a third elastic assembly, the third elastic assembly including at least one third elastic connecting member, the first elastic connecting member, the second elastic connecting member, and the third elastic connecting member being fixed at different height positions in the height direction of the vibration unit; a third projection area being formed when the third elastic assembly is projected onto the plane where the first end face is located, and at least a part of the third projection area being located outside the first projection area and the second projection area; or, the third projection area overlaps with the first projection area and / or the second projection area.

3. The sound generating device according to claim 1, characterized in that, The first elastic assembly includes a plurality of first elastic connecting members, the plurality of first elastic connecting members being all located at the same height position in the height direction of the vibration unit; the second elastic assembly includes a plurality of second elastic connecting members, the plurality of second elastic connecting members being all located at the same height position in the height direction of the vibration unit, and a projection area formed by projecting the plurality of first elastic connecting members onto the plane where the first end face is located overlapping with a projection area formed by projecting the plurality of second elastic connecting members onto the plane where the first end face is located.

4. The sound generating device according to any one of claims 1 to 3, characterized in that, The first elastic connecting member and / or the second elastic connecting member includes: a first connecting portion, the first connecting portion being connected to the vibration unit; a second connecting portion, the second connecting portion being connected to the bracket; The deformable portion is located between the first connecting portion and the second connecting portion, and two ends of the deformable portion are respectively connected to the first connecting portion and the second connecting portion, and at least a part of the deformable portion is a wound structure.

5. The sound generating device according to claim 4, characterized in that, The deformation portion includes a first end connected to the first connection portion, and a second end connected to the second connection portion, and a central area is provided between the first end and the second end; The deformation portion is formed by extending from a first end to a central area in a straight line and / or a curve along a first direction, and then extending from the central area to a second end in a straight line and / or a curve along a direction opposite to the first direction.

6. The sound generating device according to claim 5, characterized in that, The deformation portion is arranged in a spiral structure; And / or, the deformation portion is a wound linear structure.

7. The sound generating device according to claim 4, characterized in that, At least one of the first elastic connectors and / or at least one of the second elastic connectors is a linear structure formed by winding a single metal wire; Alternatively, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a linear structure formed by winding at least two metal wires connected in parallel and side by side into one body; Alternatively, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a linear structure formed by winding at least two metal wires that are intertwined and interwoven into one body.

8. The sound generating device according to claim 7, characterized in that, The linear structure formed by winding a single metal wire comprises a first wire segment and a second wire segment, wherein the wire diameter of the second wire segment is greater than the wire diameter of the first wire segment; Alternatively, the linear structure formed by winding the single metal wire has multiple cross-sections, and the widths of the multiple cross-sections are different.

9. The sound generating device according to claim 4, characterized in that, At least one of the first elastic connector and / or at least one of the second elastic connector is a stamping structure; And / or, the cross-sectional width of at least one of the first elastic connectors is greater than the cross-sectional widths of other first elastic connectors; And / or, the cross-sectional width of at least one of the second elastic connectors is greater than the cross-sectional widths of the other second elastic connectors; And / or, at least one of the first elastic connectors and / or at least one of the second elastic connectors is a wound linear structure.

10. The sound generating device according to claim 4, characterized in that The first elastic connecting member comprises: At least two deformation parts, at least two deformation parts are arranged at intervals and connected to the first connection part; At least two second connection parts, at least one of the second connection parts is connected to a side of the deformation part away from the first connection part, and the projection area formed by the projection of at least two deformation parts on the plane where the first end face is located is located outside the second projection area.

11. The sound generating device according to any one of claims 1 to 3, characterized in that The vibration unit includes a diaphragm and a voice coil connected to the diaphragm, and the elastic component connects the voice coil and the bracket; Alternatively, the vibration unit includes a diaphragm, a voice coil and a drag cup, the voice coil and the drag cup are arranged on the same side of the diaphragm, and the elastic component connects the drag cup and the bracket; And / or, the bracket is a housing or a yoke.

12. The sound generating device according to claim 11, characterized in that The voice coil includes a bobbin and a voice coil body wound around the outside of the bobbin. When the elastic member connects the voice coil and the bracket, the voice coil body is configured to be able to receive an electrical signal. The first elastic component is configured to be electrically connected to the voice coil body to input an electrical signal to the voice coil body, and the second elastic component is connected to the bobbin; Alternatively, the voice coil includes a bobbin and a voice coil body wound around the outside of the bobbin. When the elastic member connects the voice coil and the bracket, the voice coil body is configured to be able to receive an electrical signal. The second elastic component is configured to be electrically connected to the voice coil body to input an electrical signal to the voice coil body, and the first elastic component is connected to the bobbin; Alternatively, the voice coil includes a bobbin and a voice coil body wound around the outside of the bobbin. When the elastic member connects the voice coil and the bracket, the voice coil body is configured to be able to receive an electrical signal. Both the first elastic component and the second elastic component are configured to be electrically connected to the voice coil body to input an electrical signal to the voice coil body.

13. The sound generating device according to claim 12, characterized in that The material of at least one of the first elastic connectors and / or the material of at least one of the second elastic connectors includes a conductive material. One side of at least one of the first elastic connectors and / or at least one of the second elastic connectors is electrically connected to the voice coil body, and the other side is for electrically connecting to an external circuit.

14. The sound generating device according to claim 13, characterized in that The first elastic connector and / or the second elastic connector is a structure formed of an elastic material, and the conductive material is formed on the surface of the first elastic connector and / or the second elastic connector by electroplating to form a metal coating; Alternatively, the conductive material is formed by compounding / etching on the surface of the first elastic connector and / or the second elastic connector to form a metal film layer; The metal coating / metal film layer forms a conductive path connecting the external circuit and the voice coil body.

15. The sound generating device according to claim 13, characterized in that The material of the first elastic connector and / or the second elastic connector includes a non-magnetic material.

16. The sound generating device according to any one of claims 1 to 3, characterized in that The number of the vibration units is multiple, and each vibration unit is connected to at least one first elastic component and at least one second elastic component; Alternatively, each vibration unit is connected to a set of the elastic members.

17. The sound generating device according to any one of claims 1 to 3, characterized in that The housing is further provided with a plurality of fixing members for fixing one side of the first elastic connector and / or the second elastic connector facing away from the vibration unit.

18. The sound generating device according to claim 17, characterized in that The material of the fixing member includes a conductive material and is used for connecting to an external circuit.

19. An electronic device, characterized in that Including the sound generating device according to any one of claims 1 to 18.

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