Sound generating devices and electronic equipment
By setting a damper on the elastic member of the sound generating device and changing its resonance frequency, the problem of resonance between the elastic member and the vibration unit is solved, and the working stability of the sound generating device is achieved.
Patent Information
- Application Number
- CN202010458315.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-05-25
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2040-05-25
AI Technical Summary
In the existing sound generating device, the elastic components and the vibration unit are prone to resonance, affecting the working stability of the sound generating device.
By providing a damper on the elastic member, the resonance frequency of the elastic member is changed, and the probability of the elastic member resonance with the vibration unit is reduced.
The resonance between the elastic components and the vibration unit is effectively avoided, and the vibration trajectory of the vibration unit and the working stability of the sound generating device are ensured.
Smart Images

Figure CN113727250B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of electroacoustic technology, and in particular to a sound-generating device and an electronic device. Background Art
[0002] The sound device is an important acoustic component in electronic equipment. It is a transducer device that converts electrical signals into acoustic signals. With the continuous advancement and innovation of technology, the structural design of traditional sound devices is also constantly seeking innovation and change. It not only needs to meet the development trend of thinness, but also pay more and more attention to performance optimization, while taking into account process simplification and cost control.
[0003] In the existing sound-generating device, an elastic component is fixed on the voice coil frame to prevent the voice coil from being polarized in a non-vibration direction during vibration. However, since the elastic component vibrates with the vibration of the voice coil, when resonance occurs, it greatly affects the normal vibration trajectory of the voice coil, thereby affecting the normal operation of the sound-generating device. Summary of the invention
[0004] The main purpose of the present invention is to provide a sound-generating device, which aims to avoid resonance between the elastic component and the vibration unit, ensure the vibration trajectory of the vibration unit, and ensure the working stability of the sound-generating device.
[0005] To achieve the above-mentioned purpose, the sound-generating device proposed in the present invention includes a bracket, a vibration unit, an elastic component and a damping component, wherein the elastic component connects the bracket and the vibration unit, and the damping component is arranged on the elastic component.
[0006] In some embodiments of the present invention, the elastic component includes a first deformation zone and a second deformation zone, the deformation amount of the first deformation zone is greater than the deformation amount of the second deformation zone, and the damping element is arranged in the first deformation zone.
[0007] In some embodiments of the present invention, the damping element can undergo elastic deformation.
[0008] In some embodiments of the present invention, the elastic component comprises:
[0009] a first connection portion, the first connection portion being connected to the vibration unit;
[0010] a second connecting portion, the second connecting portion being connected to the bracket;
[0011] a deformation portion, one side of the deformation portion being connected to the first connection portion, and the other side of the deformation portion being connected to the second connection portion; and
[0012] A damping member is disposed between the first connecting portion and the second connecting portion.
[0013] In some embodiments of the present invention, at least part of the elastic component is a wound linear structure, the wound linear structure has a plurality of continuous line segments, and the damping element connects at least two of the line segments; or,
[0014] At least part of the elastic component is a deformable structure formed by stamping a sheet structure, the elastic component has a plurality of continuous line segments, and the damping element connects at least two of the line segments.
[0015] In some embodiments of the present invention, the elastic component comprises:
[0016] a first connection portion, the first connection portion being connected to the vibration unit;
[0017] a second connecting portion, the second connecting portion being connected to the bracket;
[0018] A deformation portion, one side of the deformation portion is connected to the first connection portion, and the other side is connected to the second connection portion, the first connection portion is provided with at least two line segments, and the damping member is connected to the at least two line segments of the first connection portion;
[0019] and / or, a first connection portion, the first connection portion being connected to the vibration unit;
[0020] a second connecting portion, the second connecting portion being connected to the bracket;
[0021] A deformation portion, one side of the deformation portion is connected to the first connection portion, and the other side is connected to the second connection portion, the second connection portion is provided with at least two line segments, and the damping member is connected to the at least two line segments of the second connection portion;
[0022] and / or, a first connection portion, the first connection portion being connected to the vibration unit;
[0023] a second connecting portion, the second connecting portion being connected to the bracket;
[0024] A deformation part, one side of the deformation part is connected to the first connection part, and the other side is connected to the second connection part, the deformation part is provided with at least two line segments, and the damping member connects the at least two line segments of the deformation part.
[0025] In some embodiments of the present invention, the deformation portion includes a first end connected to one of the first connection portion and the second connection portion, and a second end connected to the other of the first connection portion and the second connection portion, and a central area is provided between the first end and the second end;
[0026] The first end extends in a straight line and / or a curve along a first direction to a central area to form a first deformation section;
[0027] A first deformation section located in the central area extends in a straight line and / or a curve to a second end in a direction opposite to the first direction to form a second deformation section, and the first deformation section and the second deformation section are connected to form the deformation portion;
[0028] The deformation portion is defined as having a long axis and a short axis perpendicular to each other, the first connection portion and the second connection portion are spaced apart in the length direction of the short axis, and the damping member is located in the deformation portion and is arranged in the length direction of the long axis.
[0029] In some embodiments of the present invention, there are multiple damping members, and the multiple damping members are symmetrically arranged on both sides of the short axis along the length direction of the long axis.
[0030] In some embodiments of the present invention, a connection point between the first deformation section and the second deformation section is defined as the center of the deformation portion, and the damping element is disposed at the center of the deformation portion.
[0031] In some embodiments of the present invention, the connection point between the first deformation section and the second deformation section is defined as the center of the deformation portion, and there are multiple damping members, which are symmetrically arranged along the center of the deformation portion.
[0032] In some embodiments of the present invention, at least a portion of the first deformation segment and at least a portion of the second deformation segment are disposed adjacent to each other to form a deformation gap, and the damping member fills the deformation gap.
[0033] In some embodiments of the present invention, a first vibration gap is formed between the first connecting portion and the deformable portion, and the damping member fills the first vibration gap;
[0034] And / or, a second vibration gap is formed between the second connecting portion and the deformation portion, and the damping member fills the second vibration gap;
[0035] And / or, the deformation portion is a wound long strip structure, the deformation portion is provided with a third vibration gap, and the damping element fills the third vibration gap.
[0036] In some embodiments of the present invention, there are multiple damping members, and the multiple damping members are evenly distributed between the first connecting portion and the second connecting portion.
[0037] In some embodiments of the present invention, the elastic component has a deformation portion, the damping element is disposed on the deformation portion, the deformation portion is an axisymmetric structure having a symmetry line, and the damping element is located in a region corresponding to the symmetry line;
[0038] Alternatively, the elastic component is an axisymmetric structure having a symmetry line, and when there are multiple damping elements, the multiple damping elements are symmetrically arranged on both sides of the symmetry line.
[0039] In some embodiments of the present invention, the multiple segments of the wound linear structure include a first segment and a second segment, the diameter of the second segment is larger than the diameter of the first segment, and the damping element connects the first segment and the second segment.
[0040] In some embodiments of the present invention, the second line segment is bent.
[0041] In some embodiments of the present invention, the number of the first line segments and the number of the second line segments are both plural, the first line segments and the second line segments are alternately connected and arranged, and the damping element connects two adjacent first line segments.
[0042] In some embodiments of the present invention, the material of the damping element includes metal material, rubber material, silicone material, glue material or foam material;
[0043] And / or, the damping element is in the shape of a convex point structure, a flat plate structure or an arc structure.
[0044] In some embodiments of the present invention, the damping element is made of a flexible material.
[0045] 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;
[0046] 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;
[0047] And / or, the bracket is a housing or a yoke.
[0048] The present invention also provides an electronic device, comprising a sound-generating device, wherein the sound-generating device comprises a bracket, a vibration unit, an elastic component and a damping component, wherein the elastic component connects the bracket and the vibration unit, and the damping component is arranged on the elastic component.
[0049] The sound-generating device of the present invention is provided with a bracket and a vibration unit, and then one side of the elastic component is connected to the vibration unit, and the other side is connected to the bracket, and a damping member is further provided on the elastic component. Since the damping member is provided on the elastic component, the energy required for the part of the elastic component provided with the damping member and the part without the damping member to generate vibrations of the same frequency is different, so that the resonant frequency of the elastic component can be changed and the probability of resonance of the elastic component can be reduced. In this way, the technical solution of the present invention can avoid the resonance between the elastic component and the vibration unit, ensure the vibration trajectory of the vibration unit, and ensure the working stability of the sound-generating device. BRIEF DESCRIPTION OF THE DRAWINGS
[0050] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0051] Figure 1 It is a structural schematic diagram of an embodiment of an elastic component of a sound-generating device of the present invention;
[0052] Figure 2 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0053] Figure 3 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0054] Figure 4 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0055] Figure 5 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0056] Figure 6 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0057] Figure 7 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0058] Figure 8 It is a structural schematic diagram of another embodiment of the elastic component of the sound-generating device of the present invention;
[0059] Fig. 9 HOHD (higher harmonic distortion) curve diagram of the sound-generating device of the present invention when the damping member is not provided and when the damping member of the present invention is provided;
[0060] Fig.10 It is a structural schematic diagram of another embodiment of the sound-generating device of the present invention.
[0061] Description of Figure Numbers:
[0062] Label name Label name 10 Elastic components 30 Damping parts 1 First connection part a Long axis 2 Second connection part b Short Axis 3 Deformation 40 Voice Coil 31 The first deformation segment 80 Bracket 32 The second deformation segment 90 Vibration unit 4 The first vibration gap 91 Diaphragm 5 The second vibration gap 92 Drag cup 6 The third vibration gap 100 Sound device 7 First line segment 101 Magnetic circuit system 8 Second line segment 1011 Magnetic gap
[0063] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION
[0064] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiment is only a component embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0065] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0066] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0067] In the present invention, unless otherwise clearly specified 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 an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0068] Please refer to Figures 1 to 8As shown, the present invention proposes a sound-generating device 100 , which includes a bracket 80 , a vibration unit 90 , an elastic component 10 and a damping member 30 , wherein the elastic component 10 connects the bracket 80 and the vibration unit 90 , and the damping member 30 is disposed on the elastic component 10 .
[0069] 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 40 combined below 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, the magnetic circuit system 101 forms a magnetic gap 1011, and the voice coil 40 is disposed in the magnetic gap 1011 of the magnetic circuit system 101. The lower magnetic conductive plate of the present invention may be a U-shaped structure, including a bottom wall and a side wall, the magnetic gap 1011 is formed between the upper magnetic conductive plate, the magnet, and the side wall of the lower magnetic conductive plate, a relatively uniform magnetic field is formed in the magnetic gap 1011, and the voice coil 40 is disposed in the magnetic gap 1011 having a relatively uniform magnetic field. The voice coil 40 is usually made of wound metal wire. When the voice coil 40 is connected to an electrical signal, it vibrates up and down in the magnetic field under the action of the Ampere force. The vibration direction of the voice coil 40 is represented by the vertical direction or the up and down direction, and the direction perpendicular to the vibration of the voice coil 40 is represented by the horizontal direction. Since the diaphragm 91 and the voice coil 40 are fixed together by bonding or the like, when the voice coil 40 vibrates up and down according to the electrical signal, it will also drive the diaphragm 91 to vibrate and generate sound waves.
[0070] However, since the magnetic field in the magnetic gap 1011 is only relatively uniform and not absolute, the position of the voice coil 40 will also change during the vibration of the voice coil 40, and the magnetic lines of force located on the upper side of the magnetic gap 1011 are arc-shaped lines. Therefore, the Ampere force exerted on the voice coil 40 is not only in the vertical direction, but also includes Ampere forces in other directions. This makes it easy for the voice coil 40 to be polarized in a non-vertical direction during the vibration process, which will further affect the vibration of the diaphragm 91.
[0071] In order to prevent the polarization from occurring, an elastic component 10 connecting the voice coil 40 and the bracket 80 can be provided to center the polarization of the voice coil 40, that is, to ensure that the voice coil 40 vibrates along the vibration direction in the magnetic gap 1011. In one embodiment, the elastic component 10 is a centering support or a planar spring.
[0072] Reference Fig.10In one embodiment, the vibration unit 90 further includes a drag cup 92 disposed on the diaphragm 91. The drag cup 92 and the voice coil 40 are disposed on the same side of the diaphragm 91 and are disposed around the voice coil 40. When there is a magnetic gap 1011, the drag cup 92 is located outside the magnetic gap 1011. The elastic component 10 connecting the drag cup 92 and the bracket 80 can also provide centering support for the polarization of the voice coil 40, that is, to ensure that the voice coil 40 vibrates along the vibration direction within the magnetic gap 1011.
[0073] In one embodiment, the bracket 80 is a housing or a yoke. Since the housing can be used to carry the speaker unit, the bracket 80 is set as a housing, which can facilitate the fixing of the side of the elastic component 10 away from the vibration unit 90, thereby improving the centering support effect of the elastic component 10. Since most of the vibration unit 90 is close to the magnetic gap 1011, the distance between it and the yoke is relatively close. Connecting the side of the elastic component 10 away from the vibration unit 90 to the yoke can save the setting distance of the elastic component 10 on the one hand, and facilitate improving the centering support effect of the elastic component 10. It should be noted that the fixing method of the elastic component 10 in this embodiment includes a variety of combinations: the elastic component 10 is connected to the voice coil 40 and the housing, the elastic component 10 is connected to the voice coil 40 and the yoke, the elastic component 10 is connected to the drag cup 92 and the housing, and the elastic component 10 is connected to the drag cup 92 and the yoke, all of which can better ensure the centering support effect of the elastic component 10.
[0074] The sound-generating device 100 of the present invention is provided with a bracket 80 and a vibration unit 90, and then one side of the elastic component 10 is connected to the vibration unit 90, and the other side is connected to the bracket 80, and a damping member 30 is further provided on the elastic component 10. Since the damping member 30 is provided on the elastic component 10, the energy required to generate vibrations of the same frequency by the part of the elastic component 10 provided with the damping member 30 and the part without the damping member 30 is different, so that the resonant frequency of the elastic component 10 can be changed, and the probability of resonance of the elastic component 10 can be reduced. In this way, the technical solution of the present invention can avoid the resonance between the elastic component 10 and the vibration unit 90, ensure the vibration trajectory of the vibration unit 90, and ensure the working stability of the sound-generating device 100.
[0075] In some embodiments of the present invention, the elastic component 10 includes a first deformation zone and a second deformation zone, the deformation of the first deformation zone is greater than the deformation of the second deformation zone, and the damping member 30 is arranged in the first deformation zone. In this embodiment, since the elastic deformation of a part of the elastic component 10 is large, the energy required for vibration of this part is low, and it is easy to resonate with the vibration unit 90 and affect the vibration cabinet trajectory of the vibration unit 90. Therefore, the damping member 30 is arranged in the first deformation zone to increase the energy required for vibration of the first deformation zone, so that the resonance frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced. It can be understood that the first deformation zone and the second deformation zone can be interconnected or spaced from each other, and the elastic component 10 can have multiple first deformation zones and multiple second deformation zones, and different elastic deformations can be defined according to different vibration units 90 (because some vibration units 90 have high resonance frequencies and some have low resonance frequencies). When the deformation of the deformation zone is greater than the defined elastic deformation, it is identified as the first deformation zone. In one embodiment, when the elastic component 10 includes a first connection part 1 for connecting to the vibration unit 90, a second connection part 2 for connecting to the bracket 80, and a deformation part 3 connecting the first connection part 1 and the second connection part 2, the first deformation zone can be understood as the deformation part 3, and the second deformation zone can be understood as the first connection part 1 and the second connection part 2.
[0076] In some embodiments of the present invention, the damping member 30 can be elastically deformed, so that the damping member 30 can improve the degree of deformation of the region where it is disposed, thereby improving the overall elasticity of the elastic component 10 and further changing the resonance frequency of the elastic component 10 .
[0077] Reference Figures 1 to 8 In some embodiments of the present invention, the elastic component 10 includes:
[0078] A first connection portion 1, wherein the first connection portion 1 is connected to the vibration unit 90;
[0079] A second connecting portion 2, wherein the second connecting portion 2 is connected to the bracket 80;
[0080] a deformation portion 3, one side of the deformation portion 3 being connected to the first connection portion 1, and the other side of the deformation portion 3 being connected to the second connection portion 2; and
[0081] The damping member 30 is disposed between the first connecting portion 1 and the second connecting portion 2 .
[0082] The elastic component 10 is connected and matched with the vibration unit 90 through its first connection part 1; in addition, the elastic component 10 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, the polarization of the vibration unit 90 is prevented, and the reciprocating vibration of the vibration unit 90 is more stable. In one embodiment, the elastic component 10 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. And, by setting the damping member 30 located between the first connection part 1 and the second connection part 2, the resonance frequency of part of the position between the first connection part 1 and the second connection part 2 is changed, thereby changing the resonance frequency of the elastic component 10, and reducing the probability of resonance of the elastic component 10. The resonance of the elastic component 10 is avoided, the vibration trajectory of the vibration unit 90 is ensured, and the working stability of the sound-generating device 100 is ensured.
[0083] In one embodiment, the elastic component 10 can be made of non-magnetic material, which can generally be a non-ferrous metal, specifically, it can be made of at least one of phosphor bronze, iron, steel or alloy materials. Such materials are not easily affected by environmental changes, are not easy to deform in high temperature and high humidity environments, and their hardness does not change. They have good fatigue resistance, so that the sound-emitting device 100 can work in harsh environments, optimize product performance, and improve the wide application of the sound-emitting device 100.
[0084] Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 In some embodiments of the present invention, one side of the damping member 30 is connected to the first connection portion 1, and the other side is connected to the deformation portion 3. With such a configuration, during vibration, the vibration frequency of the portion of the elastic member 10 closer to the vibration unit 90 is changed relative to other positions of the elastic member 10, thereby avoiding resonance of the elastic member 10. The damping member 30 may be fixed to the elastic member 10 by bonding with an adhesive member, specifically, bonding with glue; or a snap-fit position may be provided at the first connection portion 1 and the deformation portion 3, a snap-fit structure may be provided at the damping member 30, and the snap-fit member and the snap-fit structure may be snap-fitted, so that one side of the damping member 30 is connected to the first connection portion 1, and the other side is connected to the deformation portion 3.
[0085] Reference Figure 1 , Figure 3 , Figure 4In some embodiments of the present invention, one side of the damping member 30 is connected to the second connection part 2, and the other side is connected to the deformation part 3. With such a configuration, during vibration, the vibration frequency of the part of the elastic component 10 that is relatively far from the vibration unit 90 is changed relative to other positions of the elastic component 10, thereby avoiding resonance of the elastic component 10. The damping member 30 may be fixed to the elastic component 10 by bonding with an adhesive member, specifically, bonding with glue; or a snap-fit position may be provided at the second connection part 2 and the deformation part 3, a snap-fit structure may be provided at the damping member 30, and the snap-fit member and the snap-fit structure may be snap-fitted, so that one side of the damping member 30 is connected to the second connection part 2, and the other side is connected to the deformation part 3.
[0086] Reference Figure 4 In some embodiments of the present invention, one side of the damping member 30 is connected to the first connection part 1, and the other side is connected to the second connection part 2. In this way, when vibrating, the vibration frequency of the two sides of the elastic component 10 used for fixing is changed relative to the middle part used for connection, so as to avoid the resonance of the elastic component 10. The damping member 30 can be fixed to the elastic component 10 by bonding with an adhesive member, and specifically can be bonded with glue; or a snap-fit position can be set on the first connection part 1 and the second connection part 2, and a snap-fit structure can be set on the damping member 30, and the snap-fit member and the snap-fit structure can be snap-fitted, so that one side of the damping member 30 is connected to the first connection part 1, and the other side is connected to the second connection part 2.
[0087] Reference Figure 4 In some embodiments of the present invention, one side of the damping member 30 is connected to the first connection portion 1, the other side is connected to the second connection portion 2, and the middle part of the damping member 30 is connected to the deformation portion 3. In this way, the elastic deformation degree and mass of the first connection portion 1, the second connection portion 2, and the deformation portion 3 where the damping member 30 is provided and the part where the damping member 30 is not provided are different, and the energy required to generate vibrations of the same frequency is different. In this way, the resonance frequency of the elastic component 10 can be changed, and the probability of resonance of the elastic component 10 can be reduced.
[0088] In some embodiments of the present invention, the damping member 30 is separately arranged on the first connecting part 1, or the damping member 30 is separately arranged on the second connecting part 2, and the damping member 30 is separately arranged on the deformation part 3. Such an arrangement can make the energy required for the part of the elastic component 10 where the damping member 30 is provided and the part where the damping member 30 is not provided to generate vibrations of the same frequency different. In this way, the resonant frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced.
[0089] In some embodiments of the present invention, at least part of the elastic component 10 is a wound linear structure, the wound linear structure has multiple continuous segments, and the damping member 30 connects at least two of the segments. The elastic component 10 of this embodiment is a linear bending structure, which is easy to manufacture and can provide good compliance when the vibration unit 90 has a large vibration displacement.
[0090] In some embodiments of the present invention, at least part of the elastic component 10 is a deformable structure formed by stamping a sheet structure, and the elastic component 10 has a continuous multi-segment line segment, and the damping member 30 connects at least two of the line segments. After stamping, the cross-section of the elastic component 10 of this embodiment is a square or rectangular shape, or other flat shapes. The stamping method can make the elastic component 10 an integrated structure, and is easy to manufacture, thereby improving production efficiency. Furthermore, the deformation portion 3 of the elastic component 10 is a planar structure, and the deformation portion 3 is located in the same horizontal plane as the first connecting portion 1 and the second connecting portion 2, so that the elastic component 10 is a planar structure as a whole. Compared with the existing sheet-shaped elastic wave-shaped elastic component 10, this embodiment improves the overall flatness of the elastic component 10, further reduces the height of the sound-generating device 100 in the vertical direction, and realizes the design concept of thinning the product.
[0091] 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 a line segment, and the curved line segment is a line segment; and, in the curved line segment, the line segment that bends clockwise is a line segment, and the line segment that bends counterclockwise is an end line segment; and, the straight line segment extending in one direction is a line segment, and the straight line segment extending in another direction is a line segment. Connecting at least two of the line segments through the damping member 30 improves the strength of the elastic component 10 on the one hand, and on the other hand, the elastic deformation degree and mass of the line segment of the elastic component 10 with the damping member 30 and the line segment without the damping member 30 are different, and the energy required to generate vibrations of the same frequency is different. In this way, the resonant frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced.
[0092] In some embodiments of the present invention, the first connection part 1 is provided with at least two line segments, and the damping member 30 connects the at least two line segments of the first connection part 1; on the one hand, the strength of the first connection part 1 is improved, and on the other hand, the energy required for the first connection part 1 of the elastic component 10 to generate vibrations of the same frequency relative to the second connection part 2 and the deformation part 3 is different. In this way, the resonant frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced.
[0093] In some embodiments of the present invention, the second connecting portion 2 is provided with at least two line segments, and the damping member 30 connects the at least two line segments of the second connecting portion 2; on the one hand, the strength of the second connecting portion 2 is improved, and on the other hand, the second connecting portion 2 of the elastic component 10 requires different energy to generate vibrations of the same frequency relative to the first connecting portion 1 and the deformation portion 3. In this way, the resonant frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced.
[0094] In some embodiments of the present invention, the deformation part 3 is provided with at least two line segments, and the damping member 30 connects the at least two line segments of the deformation part 3. On the one hand, the strength of the deformation part 3 is improved, and on the other hand, the deformation part 3 of the elastic component 10 needs different energy to generate vibrations of the same frequency relative to the first connecting part 1 and the second connecting part 2, so that the resonance frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced. When the damping member 30 needs to be fixed to the line segment, it can be fixed by gluing or clamping the damping member 30 by two line segments, as long as it is easy to fix.
[0095] Reference Figure 1 as well as Figures 5 to 7 , the deformation portion 3 includes a first end connected to one of the first connection portion 1 and the second connection portion 2, and a second end connected to the other of the first connection portion 1 and the second connection portion 2, and a central area is provided between the first end and the second end;
[0096] The first end extends in a straight line and / or a curve along a first direction to a central area to form a first deformation section 31;
[0097] The first deformation section 31 located in the central area extends in a straight line and / or a curve to the second end in a direction opposite to the first direction to form a first deformation section 31, and the first deformation section 31 and the first deformation section 31 are connected to form the deformation portion 3;
[0098] The deformation portion 3 is defined to have a long axis a and a short axis b which are perpendicular to each other, the first connection portion 1 and the second connection portion 2 are spaced apart in the length direction of the short axis b, and the damping member 30 is located in the deformation portion 3 and is arranged in the length direction of the long axis a.
[0099] Such an arrangement allows the deformation portion 3 to occupy a smaller space, while the first deformation section 31 and the second deformation section 31 both have a longer length, thereby obtaining a better elastic deformation. In this embodiment, the deformation portion 3 of the elastic connector can be a planar structure, and the deformation portion 3 is located in the same horizontal plane as the first connection portion 1 and the second connection portion 2, so that the elastic connector as a whole is a planar structure. Compared with the existing sheet-shaped elastic wave-shaped elastic connector, it can be understood that the first end and the second end can be arbitrarily connected to one of the first connection portion 1 or the second connection portion 2, as long as it is easy to wind and ensures production efficiency and quality. This embodiment improves the overall flatness of the elastic connector, further reduces the height of the sound-emitting device 100 in the vertical direction, and realizes the design concept of thinning the product.
[0100] The first direction can be clockwise, and the shape of the deformation portion 3 can be a polygonal spiral structure, specifically a quadrilateral, pentagon, hexagon, etc., or a circular, elliptical structure, or a structure combining straight lines and curves. For example, part of the first deformation segment 31 is a straight line, and the other part is an arc, which can specifically be a shape in which arcs and straight lines are alternately connected. It should be noted that the alternation here is not limited to one-to-one alternation, but can also be an alternation of one and many, or many and many.
[0101] In this embodiment, the deformation part 3 is arranged in a generally elliptical shape, and the deformation part 3 has a long axis a and a short axis b which are perpendicular to each other. The first connection part 1 and the second connection part 2 are arranged at intervals in the length direction of the short axis b. Such an arrangement makes the distance between the first connection part 1 and the second connection part 2 shorter than the length of the deformation part 3. Under the same arrangement, the shorter structure has a stronger structural stability than the longer structure, so the combination stability of the elastic component 10, the vibration unit 90 and the bracket 80 can be ensured. At this time, since the long axis a is longer, the energy required to generate vibration is low, and the long axis a of the elastic component 10 in this embodiment may vibrate in the direction of the short axis b. At this time, a damping member 30 is arranged at the long axis a to improve the energy required to generate vibration at the long axis a. In this way, the resonant frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced.
[0102] It can be understood that the extension direction of the first deformation section 31 and the first deformation section 31 in this embodiment can be clockwise and counterclockwise respectively, so that both can form a uniform elastic component 10 to ensure the stability of vibration of the vibration unit 90.
[0103] In some embodiments of the present invention, the connection point between the first deformation section 31 and the first deformation section 31 is defined as the center of the deformation part 3, and the damping member 30 is arranged at the center of the deformation part 3. It should be noted that in this embodiment, the first deformation section 31 and the first deformation section 31 are connected after being extended in different extension directions (one clockwise and the other counterclockwise) to form a deformation part 3 with uniform texture. At this time, it can be understood that the first deformation section 31 and the first deformation section 31 are centrally symmetrically arranged, so the connection point between the two can be understood as the center of the deformation part 3. The damping member 30 is arranged at the center of the deformation part 3, and the mass of the center of the elastic component 10 is changed, so that the energy required to generate vibrations of the same frequency between the part of the elastic component 10 where the damping member 30 is arranged and the part where the damping member 30 is not arranged is different. In this way, the resonance frequency of the elastic component 10 can be changed, and the probability of resonance of the elastic component 10 can be reduced.
[0104] In some embodiments of the present invention, the connection point between the first deformation section 31 and the first deformation section 31 is defined as the center of the deformation portion 3, and the number of the damping members 30 is multiple, and the multiple damping members 30 are symmetrically arranged along the center of the deformation portion 3. In this embodiment, multiple damping members 30 are symmetrically arranged along the center of the deformation portion 3, so that the mass of multiple locations of the elastic component 10 is changed, and then the energy required to generate vibrations of the same frequency in the parts of the elastic component 10 where the damping members 30 are arranged and the parts where the damping members 30 are not arranged is different, so that the resonant frequency of the elastic component 10 can be changed, and the probability of resonance of the elastic component 10 can be reduced.
[0105] In some embodiments of the present invention, at least part of the first deformation section 31 and at least part of the first deformation section 31 are arranged adjacent to each other to form a deformation gap, and the damping member 30 is filled in the deformation gap. In this embodiment, the damping member 30 is arranged in the deformation gap, which can change the elastic deformation degree of the adjacent first deformation section 31 and the first deformation section 31 on the one hand, and change the mass of the deformation portion 3 at that location on the other hand, so that the energy required to generate vibrations of the same frequency in the part of the elastic component 10 where the damping member 30 is arranged and the part where the damping member 30 is not arranged is different, so that the resonant frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced.
[0106] Reference Fig. 9 , Fig. 9 It is a distortion curve diagram of the elastic component 10, specifically a high-order harmonic distortion curve diagram. The dotted line portion in the figure is the distortion curve before the damping element 30 is set, and it has resonance at 1000HZ. The solid line is the distortion curve diagram after the damping element 30 is set, and the resonance basically disappears.
[0107] In some embodiments of the present invention, the number of the damping members 30 is multiple, and the multiple damping members 30 are symmetrically arranged on both sides of the short axis b along the length direction of the long axis a. According to the vibration form of the elastic component 10 in which the deformation portion 3 is an elliptical shape, arranging multiple damping members 30 in the length direction of the long axis a can improve the strength of multiple parts of the elastic component 10. On the other hand, it makes the energy required for multiple parts of the elastic component 10 to generate vibrations of the same frequency different. In this way, the resonant frequency of the elastic component 10 can be further changed, greatly reducing the probability of resonance of the elastic component 10. The symmetrical arrangement can better make the elastic component 10 uniform geologically and ensure the stability of the vibration of the vibration unit 90.
[0108] Reference Figures 1 to 4 In some embodiments of the present invention, a first vibration gap 4 is formed between the first connection part 1 and the deformation part 3, and the damping member 30 fills the first vibration gap 4; in this embodiment, the elastic member 10 can be a linear structure formed by winding a single metal wire; or, a linear structure formed by winding at least two metal wires connected in parallel and side by side as a whole; or, a linear structure formed by winding at least two metal wires intertwined and interwoven as a whole; or, a stamping structure, so that a first vibration gap 4 is formed between the first connection part 1 and the deformation part 3, and the damping member 30 is arranged to fill the first vibration gap 4, so that at least part (or all) of the first connection part 1 and the deformation part 3 are connected, on the one hand, the structural strength of the first connection part 1 and the deformation part 3 is improved, and on the other hand, the part where the first connection part 1 and the deformation part 3 are connected requires different energy for vibration relative to the second connection part 2 (and the part where the first connection part 1 and the deformation part 3 are not connected). In this way, the resonance frequency of the elastic member 10 can be changed and the probability of resonance of the elastic member 10 can be reduced. The isolating member may be filled in the first gap by gluing or directly fixed by interference fit, clamping or the like.
[0109] In some embodiments of the present invention, a second vibration gap 5 is formed between the second connecting portion 2 and the deformable portion 3, and the damping member 30 fills the second vibration gap 5. In this embodiment, the elastic member 10 can be a linear structure formed by winding a single metal wire; or, a linear structure formed by winding at least two metal wires connected in parallel and side by side as a whole; or, a linear structure formed by winding at least two metal wires intertwined and interwoven with each other as a whole; or, a stamping structure, so that a second vibration gap 5 is formed between the second connecting portion 2 and the deformable portion 3, and the damping member 30 is arranged to fill the second vibration gap 5, so that at least part (or all) of the second connecting portion 2 and the deformable portion 3 are connected, which on the one hand improves the structural strength of the second connecting portion 2 and the deformable portion 3, and on the other hand makes the part where the second connecting portion 2 and the deformable portion 3 are connected, relative to the second connecting portion 2 (and the part where the second connecting portion 2 and the deformable portion 3 are not connected) The energy required to vibrate is different, so that the resonant frequency of the elastic member 10 can be changed and the probability of resonance of the elastic member 10 can be reduced. The isolating member may be filled in the second gap by gluing or directly fixed by interference fit, clamping or the like.
[0110] In some embodiments of the present invention, the deformation part 3 is a wound strip-shaped structure, the deformation part 3 is provided with a third vibration gap 6, and the damping member 30 fills the third vibration gap 6. In this embodiment, the elastic component 10 can be a linear structure wound by a single strand of metal wire; or, a linear structure wound by at least two strands of metal wire connected in parallel and parallel as a whole; or, a linear structure wound by at least two strands of metal wire intertwined and interwoven as a whole; or, a stamping structure, so that the third vibration gap 6 is formed between the deformation parts 3, and the damping member 30 is arranged to fill the third vibration gap 6, so that at least part (or all) of the deformation part 3 is connected, which improves the structural strength of the deformation part 3 on the one hand, and on the other hand, the energy required for vibration of the connected part of the deformation part 3 is different from that of the unconnected part of the deformation part 3, the first connecting part 1 and the second connecting part 2, so that the resonance frequency of the elastic component 10 can be changed and the probability of resonance of the elastic component 10 can be reduced. The isolating member may be filled in the third gap by gluing or directly fixed by interference fit, clamping or the like.
[0111] In some embodiments of the present invention, the number of the damping members 30 is multiple, and the multiple damping members 30 are evenly distributed between the first connection part 1 and the second connection part 2. It can be understood that the multiple damping members 30 can be distributed on at least one of the first connection part 1, the second connection part 2, and the deformation part 3, and the specific number and distribution form can be determined according to the shape of the elastic component 10 or the shape of the vibration unit 90 or the shape of the bracket 80. Providing multiple damping members 30 can improve the strength of multiple parts of the elastic component 10, and on the other hand, it makes the energy required for multiple parts of the elastic component 10 to generate vibrations of the same frequency different. In this way, the resonant frequency of the elastic component 10 can be further changed, and the probability of resonance of the elastic component 10 can be greatly reduced.
[0112] In some embodiments of the present invention, the elastic component 10 has a deformation portion 3, the damping member 30 is arranged on the deformation portion 3, the deformation portion 3 is an axisymmetric structure with a symmetry line, and the damping member 30 is located in the area corresponding to the symmetry line; or, when there are multiple damping members 30, multiple damping members 30 are symmetrically arranged on both sides of the symmetry line. Such an arrangement can improve the strength of the deformation portion 3 of the elastic component 10, and on the other hand, it makes the energy required for multiple parts of the elastic component 10 to generate vibrations of the same frequency different, so that the resonant frequency of the elastic component 10 can be further changed, greatly reducing the probability of resonance of the elastic component 10. The symmetrical arrangement can better make the elastic component 10 uniform geologically and ensure the stability of the vibration of the vibration unit 90.
[0113] Reference Figure 8 In some embodiments of the present invention, the wound linear structure includes a first line segment 7 and a second line segment 8, the line diameter of the second line segment 8 is larger than the line diameter of the first line segment 7, and the damping member 30 connects the first line segment 7 and the second line segment 8. By setting the second line segment 8 and the first line segment 7 to have different line diameters, the first line segment 7 and the second line segment 8 need to generate vibrations of the same frequency with different energies, so that the resonant frequency of the elastic component 10 can be further changed, greatly reducing the probability of resonance of the elastic component 10. It can be understood that the first line segment 7 and the second line segment 8 can belong to at least one of the first connecting portion 1, the second connecting portion 2, and the deformation portion 3.
[0114] In some embodiments of the present invention, the second line segment 8 is bent. Further, since the diameter of the second line segment 8 is larger than the diameter of the first line segment 7, such a configuration is conducive to reducing stress concentration, avoiding breakage, and ensuring normal use of the elastic component 10.
[0115] In some embodiments of the present invention, the number of the first line segments 7 and the number of the second line segments 8 are both multiple, the first line segments 7 and the second line segments 8 are alternately connected, and the damping member 30 connects two adjacent first line segments 7. In this embodiment, the bent second line segments 8 and the straight first line segments 7 are alternately arranged to form an elastic component 10 with a serpentine structure or an S-shaped structure. Since the second line segments 8 have a thicker wire diameter, the structural strength is high. The two adjacent first line segments 7 are connected, so that the strength of the first line segments 7 is also high. On the one hand, the strength of multiple parts of the elastic component 10 is improved, and on the other hand, the energy required for multiple parts of the elastic component 10 to generate vibrations of the same frequency is different. In this way, the resonant frequency of the elastic component 10 can be further changed, and the probability of resonance of the elastic component 10 is greatly reduced.
[0116] In some embodiments of the present invention, the material of the damping element 30 includes at least one of metal material, rubber material, silicone material, glue material, and foam material; and / or the damping element 30 is shaped like a sheet structure or a linear structure.
[0117] When the material of the damping member 30 includes a metal material, the damping member 30 may be a metal wire or a metal sheet. The metal material has a high structural strength, which can improve the strength of the connected part of the elastic member 10 and change the vibration frequency of the elastic member 10. When a metal wire is used, when the elastic member 10 is a wound linear structure, one end of the metal wire may be wound and fixed to one place of the elastic member 10, and the other end may be wound and fixed to another place of the elastic member 10. When the elastic member 10 is a sheet structure, the damping member 30 may be connected to the elastic member 10 by bonding or welding. When a metal sheet is used, the damping member 30 may be connected to the elastic member 10 by bonding or welding.
[0118] In some embodiments of the present invention, the material of the damping member 30 includes a flexible material. The specific material of the damping member 30 may include a rubber material and / or a silicone material and / or a paper material and / or a leather material. It should be noted that the flexible material is a material with a soft texture and a certain elasticity. Such a material can improve the strength of the connected part of the elastic component 10, and the connected part is elastically connected, and the vibration frequency of the elastic component 10 is changed, so as to avoid resonance to the maximum extent without affecting the elasticity of the elastic component 10 itself, and greatly improve the sound effect of the sound-generating device 100. In one embodiment, a rubber material and / or a silicone material is used, and liquid silicone or rubber can be used, and then the liquid silicone or rubber is applied to the elastic component 10. After solidification, the silicone and rubber are the damping member 30. The damping member 30 in this embodiment can be applied to the surface of the sheet elastic component 10, or can be applied to the vibration gap of the linear elastic component 10, which can well improve the resonance of the elastic component 10. When the damping member 30 is made of paper or leather, glue can be used to fix it. The specific effects are described above and will not be elaborated here.
[0119] In some embodiments of the present invention, the material of the damping member 30 includes a glue material. By setting the glue material, a damping member 30 with a certain elastic deformation ability can be formed when the glue material solidifies. The glue material can specifically be a resin glue material, a silicone glue, a rubber glue, etc. The damping member 30 formed after the glue material solidifies can improve the strength of the connected part of the elastic component 10, and the connected part is elastically connected, and the vibration frequency of the elastic component 10 is changed, so as to avoid resonance to the maximum extent without affecting the elasticity of the elastic component 10 itself, thereby greatly improving the sound effect of the sound-generating device 100.
[0120] In some embodiments of the present invention, the damping member 30 is foam, which has a very good shielding effect at low pressure, is elastic, light in weight, and has good corrosion resistance. When foam is used, the foam can be fixed to the elastic component 10 by bonding. The foam elastic component 10 can improve the strength of the connected part of the elastic component 10, and the connected part is elastically connected, and the vibration frequency of the elastic component 10 is changed, so as to avoid resonance to the maximum extent without affecting the elasticity of the elastic component 10 itself, and greatly improve the sound effect of the sound-generating device 100.
[0121] In some embodiments of the present invention, the damping member 30 is in the shape of a convex point structure, a flat plate structure or an arc structure. The convex point structure can be understood as a damping member that is roughly in a block structure, both sides of the block structure are convex to form glue points, or a spherical structure, the two opposite sides of the spherical structure are provided with convex glue points, or a plurality of point structures attached to the elastic component, which can improve the local elasticity of the elastic component 10 and reduce the resonance between the elastic component 10 and the vibration unit 90. The flat plate structure can make the damping member 30 and the elastic component 10 have a larger bonding area, so as to ensure that the damping member 30 is conveniently arranged in the first deformation zone with a larger area, and reduce the resonance between the elastic component 10 and the vibration unit 90. And, the arc structure makes the damping member 30 itself have a certain elastic deformation function, so as to facilitate the improvement of the local elasticity of the elastic component 10 and reduce the resonance between the elastic component 10 and the vibration unit 90.
[0122] It is understandable that the sound-emitting device 100 can be a rectangular sound-emitting device 100 or a circular sound-emitting device 100. When the sound-emitting device 100 is set to be rectangular, the central magnetic steel is also set to be a long strip with a rectangular shape. Correspondingly, the shape of the sound-emitting device 100 is also rectangular. Compared with the circular shape, this structure has a higher space utilization rate when applied to electronic devices. At the same time, under the premise of the same area, the long strip diaphragm 91 is easier to obtain a larger amplitude. The sound-emitting device 100 provided by the present invention can also form a thinner structure in the upper and lower directions as a whole, so that it is easier to be used in a flat installation space.
[0123] The present invention further provides an electronic device, comprising a sound-generating device 100, wherein the sound-generating device 100 comprises a bracket 80, a vibration unit 90, an elastic component 10 and a damping member 30, wherein the elastic component 10 connects the bracket 80 and the vibration unit 90, and the damping member 30 is disposed on the elastic component 10. Since the electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.
[0124] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A sound-generating device, characterized in that: It comprises a bracket, a vibration unit, an elastic component and a damping component, wherein the elastic component connects the bracket and the vibration unit, and the damping component is arranged on the elastic component; Wherein, the elastic component comprises: a first connection portion, the first connection portion being connected to the vibration unit; a second connecting portion, the second connecting portion being connected to the bracket; a deformation portion, one side of the deformation portion being connected to the first connection portion, and the other side of the deformation portion being connected to the second connection portion; The damping member is disposed between the first connecting portion and the second connecting portion; and the deformation portion is a planar structure, and the deformation portion, the first connecting portion and the second connecting portion are located in the same horizontal plane; The elastic component has a plurality of continuous line segments, and the damping element connects at least two of the line segments; The damping element can be elastically deformed.
2. The sound-generating device according to claim 1, characterized in that: The elastic component includes a first deformation zone and a second deformation zone, the deformation amount of the first deformation zone is greater than the deformation amount of the second deformation zone, and the damping member is arranged in the first deformation zone.
3. The sound generating device according to claim 1, characterized in that: At least part of the elastic component is a wound linear structure; or, At least part of the elastic component is a deformable structure formed by stamping a sheet structure.
4. The sound-generating device according to claim 3, characterized in that: The elastic component comprises: a first connection portion, the first connection portion being connected to the vibration unit; a second connecting portion, the second connecting portion being connected to the bracket; A deformation portion, one side of the deformation portion is connected to the first connection portion, and the other side is connected to the second connection portion, the first connection portion is provided with at least two line segments, and the damping member is connected to the at least two line segments of the first connection portion; and / or, a first connection portion, the first connection portion being connected to the vibration unit; a second connecting portion, the second connecting portion being connected to the bracket; A deformation portion, one side of the deformation portion is connected to the first connection portion, and the other side is connected to the second connection portion, the second connection portion is provided with at least two line segments, and the damping member is connected to the at least two line segments of the second connection portion; and / or, a first connection portion, the first connection portion being connected to the vibration unit; a second connecting portion, the second connecting portion being connected to the bracket; A deformation part, one side of the deformation part is connected to the first connection part, and the other side is connected to the second connection part, the deformation part is provided with at least two line segments, and the damping member connects the at least two line segments of the deformation part.
5. The sound generating device according to claim 4, characterized in that: The deformable portion includes a first end connected to one of the first connecting portion and the second connecting portion, and a second end connected to the other of the first connecting portion and the second connecting portion, and a central area is provided between the first end and the second end; The first end extends in a straight line and / or a curve along a first direction to a central area to form a first deformation section; A first deformation section located in the central area extends in a straight line and / or a curve to a second end in a direction opposite to the first direction to form a second deformation section, and the first deformation section and the second deformation section are connected to form the deformation portion; The deformation portion is defined as having a long axis and a short axis perpendicular to each other, the first connection portion and the second connection portion are spaced apart in the length direction of the short axis, and the damping member is located in the deformation portion and is arranged in the length direction of the long axis.
6. The sound generating device according to claim 5, characterized in that: There are multiple damping members, and the multiple damping members are symmetrically arranged on both sides of the short axis along the length direction of the long axis.
7. The sound generating device according to claim 5, characterized in that: The connection point between the first deformation section and the second deformation section is defined as the center of the deformation portion, and the damping element is arranged at the center of the deformation portion.
8. The sound generating device according to claim 7, characterized in that: The connection point between the first deformation section and the second deformation section is defined as the center of the deformation portion. There are multiple damping members, and the multiple damping members are symmetrically arranged along the center of the deformation portion.
9. The sound generating device according to claim 5, characterized in that: At least part of the first deformation section and at least part of the second deformation section are arranged adjacent to each other to form a deformation gap, and the damping member fills the deformation gap.
10. The sound generating device according to claim 1, characterized in that: A first vibration gap is formed between the first connecting portion and the deformable portion, and the damping member fills the first vibration gap; And / or, a second vibration gap is formed between the second connecting portion and the deformation portion, and the damping member fills the second vibration gap; And / or, the deformation portion is a wound long strip structure, the deformation portion is provided with a third vibration gap, and the damping element fills the third vibration gap.
11. The sound generating device according to any one of claims 1 to 10, characterized in that: There are multiple damping members, and the multiple damping members are evenly distributed between the first connecting portion and the second connecting portion.
12. The sound generating device according to any one of claims 1 to 10, characterized in that: The elastic component has a deformation portion, the damping element is arranged on the deformation portion, the deformation portion is an axisymmetric structure having a symmetry line, and the damping element is located in a region corresponding to the symmetry line; Alternatively, the elastic component is an axisymmetric structure having a symmetry line, and when there are multiple damping elements, the multiple damping elements are symmetrically arranged on both sides of the symmetry line.
13. The sound generating device according to claim 3, characterized in that: The multiple line segments of the wound linear structure include a first line segment and a second line segment, the line diameter of the second line segment is greater than the line diameter of the first line segment, and the damping element connects the first line segment and the second line segment.
14. The sound generating device according to claim 13, characterized in that: The second line segment is arranged in a bent state.
15. The sound generating device according to claim 13 or 14, characterized in that: The number of the first line segments and the number of the second line segments are both plural, the first line segments and the second line segments are alternately connected and arranged, and the damping member connects two adjacent first line segments.
16. The sound generating device according to any one of claims 1 to 10, characterized in that: The material of the damping element includes metal material, rubber material, silicone material, glue material or foam material; And / or, the damping element is in the shape of a convex point structure, a flat plate structure or an arc structure.
17. The sound generating device according to any one of claims 1 to 10, characterized in that: The damping element is made of a flexible material.
18. The sound generating device according to any one of claims 1 to 10, 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.
19. An electronic device, characterized in that: Comprising the sound-generating device according to any one of claims 1 to 18.
Citation Information
Patent Citations
Centring disk subassembly and have its super woofer
CN206164837U
Sound production device and electronic equipment
CN212486775U