Application Device

Abstract

The present invention discloses an application device, including a plurality of elastic components, wherein the elastic components include a first connection portion, a second connection portion, and a deformation portion located between the first connection portion and the second connection portion; the first connection portion and the second connection portion are respectively connected to different components in the application device, and different components can move relative to each other, or different components are relatively stationary; the deformation portion is formed by extending the first end to the second end in a straight line and / or a curve along the same direction or different directions; each elastic component is integrally stamped and formed by a sheet structure. The elastic components of the application device are all integrally stamped and formed structures, which are simple and convenient to manufacture, and the flatness and dimensional tolerance of the stamped and formed elastic components are easier to control, and the product yield is high. In addition, the elastic components occupy a small space, which is conducive to the thinning of the product. In addition, even in the case of a large vibration displacement of the vibration unit, the compliance of the elastic component remains good, and sufficient displacement can be provided.

Description

Technical Field

[0001] The present invention relates to the field of electroacoustic technology, and in particular to an application device. Background Art

[0002] Application devices, such as speakers, are important acoustic components in electronic devices. They are transducers that convert electrical signals into acoustic signals. With the continuous advancement and innovation of technology, the structural design of traditional speakers is also constantly seeking innovation and change. It not only needs to meet the trend of thinness, but also pay more and more attention to performance optimization, while taking into account process simplification and cost control.

[0003] In existing loudspeakers, a centering support is fixedly arranged on the voice coil frame to prevent the voice coil from being polarized in a non-vibration direction during vibration, and the centering support is usually in the shape of a sheet-shaped elastic wave. However, the manufacturing process of the sheet-shaped elastic wave-shaped centering support is complicated, and the sheet-shaped elastic wave-shaped centering support will increase the height of the loudspeaker along its vibration direction, increase the occupied space, and is not conducive to the thinning of the product. In the case of a large vibration displacement of the voice coil, the compliance of the sheet-shaped elastic wave-shaped centering support becomes poor, and it cannot provide sufficient displacement. Instead, it will form a pulling direction opposite to the displacement of the voice coil, affecting the vibration of the voice coil. Summary of the invention

[0004] The main purpose of the present invention is to provide an application device, aiming to solve the problem of complex manufacturing process of centering support pieces in the prior art.

[0005] To achieve the above object, the present invention provides an application device, the application device comprising a plurality of elastic components, the elastic component comprising a first connection portion, a second connection portion, and a deformation portion located between the first connection portion and the second connection portion; the first connection portion and the second connection portion are respectively connected to different components in the application device, the different components can move relative to each other, or the different components are relatively stationary;

[0006] 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;

[0007] The deformation portion is formed by the first end extending to the second end in a straight line and / or a curve along the same direction or different directions;

[0008] Each of the elastic components is integrally stamped from a sheet structure.

[0009] Preferably, the elastic component is a linear bending structure.

[0010] Preferably, 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.

[0011] Preferably, the areas of the deformation portion close to the first connecting portion and the second connecting portion form two corresponding widened areas, the area of ​​the deformation portion located between the two widened areas is a non-widened area, and the line width of the deformation portion located in the widened area is greater than the line width of the deformation portion in the non-widened area.

[0012] Preferably, the deformation portion is an S-shaped curved structure extending from the first end to the second end in a straight line and / or a curve.

[0013] Preferably, the width of the deformable portion gradually increases from the first connection portion to the second connection portion, and the extension lines of the two sides of the width direction of the deformable portion intersect at a point in the direction of the first connection portion away from the second connection portion to form an acute angle; or,

[0014] The width of the deformation portion gradually decreases from the first connection portion to the second connection portion, and the extension lines of the two side edges in the width direction of the deformation portion intersect at a point in the direction where the second connection portion is away from the first connection portion to form an acute angle.

[0015] Preferably, each bend in the deformation portion forms a bending line segment, and the ends of two adjacent bending line segments are connected by an arc line segment, and the line width of the arc line segment and the two bending line segments connected thereto are equal or gradually arranged.

[0016] Preferably, the line widths of the first connecting portion, the second connecting portion, and the bending line segment and the circular arc line segment in the widened area are greater than the line widths of the bending line segment and the circular arc line segment in the non-widened area.

[0017] Preferably, the gap between the first connecting portion and the bending line segment adjacent thereto, the gap between two adjacent bending line segments, the gap between the second connecting portion and the bending line segment adjacent thereto, and the diameter of the arc line segment are all greater than or equal to the thickness of the elastic component.

[0018] Preferably, an opening is formed between two adjacent bending line segments relative to the circular arc line segment, and a damping member is provided at the opening in the non-widened area, and the damping member connects the two adjacent bending line segments.

[0019] Preferably, a central area is provided between the first end and the second end; the deformation portion extends from the first end to the central area in a straight line and / or a curve along a first direction to the central area, and then extends from the central area in a straight line and / or a curve along a direction opposite to the first direction to the second end.

[0020] Preferably, the deformation portion has a spiral structure, and the deformation portion extends from the first end to the central area along a clockwise or counterclockwise spiral to the central area, and then extends from the central area along a counterclockwise or clockwise spiral to the second end.

[0021] Preferably, each bend in the deformation portion forms a spiral line segment, and any two adjacent spiral line segments are arranged at intervals.

[0022] Preferably, the line widths of the first connecting portion, the second connecting portion, and the spiral line segment in the widened area are greater than the line width of the spiral line segment in the non-widened area.

[0023] Preferably, the gap between the first connecting portion and the adjacent spiral segment, the gap between two adjacent spiral segments, and the gap between the second connecting portion and the adjacent spiral segment are all greater than or equal to the thickness of the elastic component.

[0024] Preferably, a damping member is provided at the gap between the spiral segment connected to the first connection portion and the adjacent spiral segment, and at the gap between the spiral segment connected to the second connection portion and the adjacent spiral segment, and the damping member connects two adjacent spiral segments.

[0025] Preferably, the elastic component is made of any one of phosphor bronze, iron, steel or alloy materials.

[0026] Preferably, the application device further comprises a vibration unit, and the elastic component is used to balance the vibration of the vibration unit along a preset direction.

[0027] Preferably, there may be one or more vibration units, and the vibration units may be arranged in a vertical direction or a horizontal direction.

[0028] Preferably, the number of the elastic components is at least three, and at least three of the elastic components are evenly spaced along the periphery of the vibration unit.

[0029] Preferably, two of the elastic components are conductive structures, and the remaining elastic components are non-conductive structures.

[0030] Preferably, the application device further comprises a bracket, the vibration unit comprises a diaphragm and a voice coil connected to the diaphragm; the first connecting portion is connected to the voice coil, and the second connecting portion is connected to the bracket;

[0031] Alternatively, the vibration unit includes a diaphragm, a voice coil and a drag cup, the voice coil and the drag cup are connected to the same side of the diaphragm, the first connection portion is connected to the drag cup, and the second connection portion is connected to the bracket;

[0032] And / or, the bracket is a housing or a yoke.

[0033] Preferably, the application device is a speaker, a motor or a multifunctional vibration device.

[0034] In the technical solution of the present invention, the elastic component is stamped and formed by a sheet structure in one piece, which is simple and convenient to manufacture, simplifies the manufacturing process, has high manufacturing efficiency, reduces manufacturing costs, and the flatness and dimensional tolerance of the stamped elastic component are easier to control, and the product yield is high. In addition, the elastic component of the present invention will not increase the height of the application device in the vertical direction, occupies a small space, and is conducive to the thinning of the product. In addition, the deformation part of the elastic component of the present invention extends in a straight line and / or a curve in the same direction or in different directions through a narrow and long structure, which can reduce the stress concentration of the deformation part, increase fatigue strength, and reduce the risk of fracture of the elastic component, so that the elastic component follows the vibration unit in the vertical displacement process, and the deformation part undergoes elastic deformation large enough, even in the case of large vibration displacement of the vibration unit, the compliance of the elastic component remains good, and sufficient displacement can be provided, without affecting the vibration of the vibration unit, and optimizing product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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.

[0036] Figure 1 A schematic top view of an elastic component according to an embodiment of the present invention;

[0037] Figure 2 is a cross-sectional schematic diagram of an elastic component according to an embodiment of the present invention;

[0038] Figure 3 is a schematic top view of an elastic component according to another embodiment of the present invention;

[0039] Figure 4It is a three-dimensional schematic diagram of a voice coil and an elastic component in an application device according to an embodiment of the present invention;

[0040] Figure 5 A schematic top view of a voice coil and an elastic component in an application device according to an embodiment of the present invention;

[0041] Figure 6 A schematic front view of a voice coil and an elastic component in an application device according to an embodiment of the present invention;

[0042] Figure 7 It is a three-dimensional schematic diagram of a voice coil and an elastic component in an application device according to another embodiment of the present invention;

[0043] Figure 8 A schematic top view of a voice coil and an elastic component in an application device according to another embodiment of the present invention;

[0044] Fig. 9 It is a cross-sectional schematic diagram of an application device according to an embodiment of the present invention.

[0045] Description of Figure Numbers:

[0046] Label name Label name 10 Elastic components 14 Damping parts 11 First connection part 20 Voice Coil 12 Second connection part 21 skeleton 121 Hook 22 Voice Coil Cable 13 Deformation 30 Elastic component set 131 Widening area 40 Vibration unit 132 Non-widening area 50 Magnetic circuit system 133 Bend line segment 51 Magnetic gap 134 Arc segment 60 Diaphragm 135 Opening 70 Bracket 136 Spiral Segment 80 Drag cup 137 Central Area 100 Application Device

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] 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 embodiments are only part of the embodiments of the present invention, not all of the 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.

[0049] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications 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.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting 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.

[0051] The present invention provides an application device.

[0052] like Figures 1 to 6 As shown, the application device 100 includes a plurality of elastic components 10, and the elastic component 10 includes a first connecting portion 11, a second connecting portion 12, and a deformation portion 13 located between the first connecting portion 11 and the second connecting portion 12; the first connecting portion 11 and the second connecting portion 12 are respectively connected to different components in the application device 100, and the different components can move relative to each other, or the different components are relatively stationary; the deformation portion 13 includes a first end connected to one of the first connecting portion 11 and the second connecting portion 12, and a second end connected to the other of the first connecting portion 11 and the second connecting portion 12; the deformation portion 13 is formed by the first end extending to the second end in a straight line and / or a curve along the same direction or different directions; each elastic component 10 is integrally stamped from a sheet structure.

[0053] Specifically, the elastic component 10 can be a linear, narrow strip or sheet structure integrally stamped from a metal plate. The deformation portion 13 is an S-shaped curved structure formed by extending from the first end to the second end in a straight line and / or a curve; or, a central area 137 is provided between the first end and the second end, and the deformation portion 13 extends from the first end to the central area 137 in a straight line and / or a curve along a first direction to the central area 137, and then extends from the central area 137 in a straight line and / or a curve along a direction opposite to the first direction to the second end. The above-mentioned first direction can be clockwise, and the shape of the deformation part 13 can be a polygonal spiral structure, specifically a quadrilateral, pentagon, hexagon, etc., or a circular, elliptical structure, or a structure combining straight and curved shapes. For example, each bend in the deformation part 13 is a bending line segment 133, part of the bending line segment 133 is a straight line, and the other part is a curve. It can specifically be a shape in which arcs and curves 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.

[0054] The elastic component 10 is formed by bending and extending a narrow and long structure as a whole, wherein the deformation portion 13 can be a spiral structure, formed by the first end thereof extending to the central region 137 along a clockwise spiral to the central region 137, and then extending from the central region 137 to the second end in a counterclockwise direction. The deformation portion 13 can also be a square-shaped spiral structure, formed by the first end thereof extending to the central region 137 along a straight line and a curve to the central region 137, and then extending from the central region 137 to the second end along a curve and a straight line. The deformation portion 13 can also be other structures formed by bending and extending a narrow and long structure, and the structural shape of the deformation portion 13 can be set according to actual use requirements, and the elastic component 10 in the application device 100 of the present invention does not limit the structure of the deformation portion 13.

[0055] like Fig. 9 As shown, the elastic component 10 of this embodiment is applied to an application device 100 such as a speaker, a motor or a multifunctional vibration device. This embodiment is described by taking the elastic component 10 applied to a speaker as an example. The speaker includes an elastic component 10 and a vibration unit 40, and the elastic component 10 is used to balance the vibration of the vibration unit 40 along a preset direction. The speaker also includes a bracket 70. In one embodiment, the vibration unit 40 includes a diaphragm 60 and a voice coil 20 connected to the diaphragm 60; the first connecting portion 11 of the elastic component 10 is connected to the voice coil 20, the second connecting portion 12 is connected to the bracket 70, and / or the bracket 70 is a shell or a yoke; in another embodiment, the vibration unit 40 includes a diaphragm 60, a voice coil 20 and a drag cup 80, the voice coil 20 and the drag cup 80 are connected to the same side of the diaphragm 60, the first connecting portion 11 is connected to the drag cup 80, the second connecting portion 12 is connected to the bracket 70, and / or the bracket 70 is a shell or a yoke.

[0056] It can be understood that the multiple elastic components 10 of the application device 100 are arranged at intervals along the outer periphery of the vibration unit 40. After the vibration unit 40 is connected to the electrical signal, it can vibrate in the up and down directions in the housing. Figure 3 The vibration direction of the vibration unit 40 is represented by the vertical direction or the up-down direction, and the direction perpendicular to the vibration of the vibration unit 40 is represented by the horizontal direction. Figure 4As shown, in one embodiment, the first connection portion 11 of the elastic component 10 is connected to the voice coil 20. Specifically, the voice coil 20 includes a skeleton 21 and a voice coil wire 22 wound outside the skeleton 21. The first connection portion 11 can be connected to the skeleton 21 or to the voice coil wire 22. The second connection portion 12 of the elastic component 10 is connected to the housing to achieve assembly between the voice coil 20, the elastic component 10 and the housing. In another embodiment, the first connection portion 11 is connected to the drag cup 80, and the second connection portion 12 is connected to the housing. In other embodiments, the first connection portion 11 is connected to the drag cup 80, and the second connection portion 12 is connected to the yoke, or the first connection portion 11 is connected to the voice coil 20, and the second connection portion 12 is connected to the yoke.

[0057] like Fig. 9 As shown, specifically, in one embodiment, the application device 100 includes a vibration unit 40, a magnetic circuit system 50, and a housing for mounting and fixing the vibration unit 40 and the magnetic circuit system 50; wherein the vibration unit 40 includes a diaphragm 60 and a voice coil 20 combined below the diaphragm 60; the magnetic circuit system 50 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 50 forms a magnetic gap 51, and the voice coil 20 is disposed in the magnetic gap 51 of the magnetic circuit system 50. The lower magnetic conductive plate of the present invention may be a U-shaped structure, including a bottom wall and a side wall, a magnetic gap 51 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 51, and the voice coil 20 is disposed in the magnetic gap 51 having a relatively uniform magnetic field. The voice coil 20 is usually made of wound metal wire. When the voice coil 20 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 20 is represented by the vertical direction or the up and down direction, and the direction perpendicular to the vibration of the voice coil 20 is represented by the horizontal direction. Since the diaphragm 60 and the voice coil 20 are fixed together by bonding or the like, when the voice coil 20 vibrates up and down according to the electrical signal, it will also drive the diaphragm 60 to vibrate and generate sound waves.

[0058] However, since the magnetic field in the magnetic gap 51 is only relatively uniform and not absolute, the position of the voice coil 20 will also change during the vibration of the voice coil 20, and the magnetic lines of force located on the upper side of the magnetic gap 51 are arc-shaped lines. Therefore, the Ampere force exerted on the voice coil 20 is not only in the vertical direction, but also includes Ampere forces in other directions. This makes it easy for the voice coil 20 to be polarized in a non-vertical direction during the vibration process, which will further affect the vibration of the diaphragm 60.

[0059] In order to prevent the polarization from occurring, an elastic component 10 connecting the voice coil 20 and the bracket 70 can be provided to center the polarization of the voice coil 20, that is, to ensure that the voice coil 20 vibrates along the vibration direction in the magnetic gap 51. In one embodiment, the elastic component 10 is a centering support sheet or a planar spring.

[0060] In one embodiment, the vibration unit 40 further includes a drag cup 80 disposed on the diaphragm 60, and the drag cup 80 and the voice coil 20 are connected on the same side of the diaphragm 60. When there is a magnetic gap 51, the drag cup 80 is located outside the magnetic gap 51, and the elastic component 10 connecting the drag cup 80 and the bracket 70 can also perform centering support for the polarization of the voice coil 20, that is, to ensure that the voice coil 20 vibrates along the vibration direction in the magnetic gap 51.

[0061] In one embodiment, the bracket 70 is a housing or a yoke. Since the housing can be used to carry the speaker unit, setting the bracket 70 as a housing can facilitate fixing the side of the elastic component 10 away from the vibration unit 40, thereby improving the centering support effect of the elastic component 10. Since most of the vibration unit 40 is close to the magnetic gap 51, the distance between it and the yoke is relatively close. Connecting the side of the elastic component 10 away from the vibration unit 40 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, as described above, the fixing method of the elastic component 10 in this embodiment includes a variety of combinations: the first connection portion 11 and the second connection portion 12 of the elastic component 10 are respectively connected to the voice coil 20 and the housing, or the first connection portion 11 and the second connection portion 12 of the elastic component 10 are respectively connected to the voice coil 20 and the yoke, or the first connection portion 11 and the second connection portion 12 of the elastic component 10 are respectively connected to the drag cup 80 and the housing, or the first connection portion 11 and the second connection portion 12 of the elastic component 10 are respectively connected to the drag cup 80 and the yoke, all of which can better ensure the centering support effect of the elastic component 10.

[0062] It can be understood that after the vibration unit 40 is connected to the electrical signal, it can vibrate in the up and down directions in the housing. Figure 6 The vibration direction of the vibration unit 40 is represented by the vertical direction or the up-down direction, and the direction perpendicular to the vibration of the vibration unit 40 is represented by the horizontal direction. Figure 4 , Figure 7 and Figure 8 As shown, in one embodiment, the first connection portion 11 of the elastic component 10 is connected to the voice coil 20. Specifically, the voice coil 20 includes a frame 21 and a voice coil wire 22 wound outside the frame 21. The first connection portion 11 can be connected to the frame 21 or the voice coil wire 22. The second connection portion 12 of the elastic component 10 is connected to the housing to achieve assembly between the voice coil 20, the elastic component 10 and the housing. Fig. 9 As shown, in another embodiment, the first connection portion 11 is connected to the drag cup 80, and the second connection portion 12 is connected to the housing. In other embodiments, the first connection portion 11 is connected to the drag cup 80, and the second connection portion 12 is connected to the yoke, or the first connection portion 11 is connected to the voice coil 20, and the second connection portion 12 is connected to the yoke.

[0063] The setting of the elastic component 10 of this embodiment forms a horizontal constraint on the vibration unit 40 when the vibration unit 40 vibrates vertically, which can prevent the vibration unit 40 from polarizing, and the elastic component 10 follows the displacement of the vibration unit 40 in the vertical direction. Compared with the existing sheet-shaped elastic component 10 with a spring-shaped shape, the elastic component 10 of this embodiment is stamped and formed by a sheet structure, and can be a linear, narrow strip or sheet structure stamped and formed by a metal plate. It is simple and convenient to manufacture, simplifies the manufacturing process, has high manufacturing efficiency, reduces manufacturing costs, and the flatness and dimensional tolerance of the stamped elastic component 10 are easier to control, and the product yield is high. In addition, the elastic component 10 of this embodiment will not increase the height of the application device 100 in the vertical direction, occupies less space, and is conducive to the thinning of the product. In addition, the deformation portion 13 in the elastic component 10 of the present embodiment extends in a straight line and / or a curve in the same direction or different directions respectively through a narrow and long structure, which can reduce the stress concentration of the deformation portion 13, increase the fatigue strength, and reduce the risk of breakage of the elastic component 10. When the elastic component 10 follows the vibration unit 40 in the vertical displacement, the elastic deformation of the deformation portion 13 is large enough. Even when the vibration displacement of the vibration unit 40 is large, the compliance of the elastic component 10 is maintained well, and sufficient displacement can be provided without affecting the vibration of the vibration unit 40, thereby optimizing product performance.

[0064] The elastic component 10 of the present embodiment is a linear bending structure, which is easy to manufacture and can provide good compliance when the voice coil 20 vibrates and displaces a large amount. After stamping, the cross-section of the elastic component 10 of the present embodiment is in a square or rectangular shape, or in other flat shapes. Furthermore, the deformation portion 13 of the elastic component 10 is a planar structure, and the deformation portion 13 and the first connecting portion 11 and the second connecting portion 12 are located in the same horizontal plane, so that the elastic component 10 is a planar structure as a whole. Compared with the existing sheet-shaped elastic component 10 with a spring wave shape, the present embodiment improves the overall flatness of the elastic component 10, further reduces the height of the application device 100 in the vertical direction, and realizes the design concept of thinning the product.

[0065] In this embodiment, the regions of the deformation portion 13 close to the first connection portion 11 and the second connection portion 12 form two widening regions 131, and the region of the deformation portion 13 between the two widening regions 131 is a non-widening region 132, and the line width of the deformation portion 13 in the widening region 131 is greater than the line width of the deformation portion 13 in the non-widening region 132. It can be understood that the region of the deformation portion 13 close to the first connection portion 11 and the second connection portion 12 generates a large displacement, a large elastic deformation, and a large stress concentration. In this embodiment, the area of ​​the deformation part 13 close to the first connection part 11 and the second connection part 12 is respectively set as two widened areas 131, and the area between the two widened areas 131 on the deformation part 13 is set as a non-widened area 132, and the line width of the deformation part 13 in the widened area 131 is widened, so that the line width of the deformation part 13 in the widened area 131 is greater than the line width of the non-widened area 132, which is conducive to reducing stress concentration, avoiding fracture, and ensuring the normal use of the elastic component 10. In addition, in this embodiment, the line width of the deformation part 13 is partially widened, which can change the vibration frequency of the elastic component 10 as a whole, eliminate resonance, and optimize product performance.

[0066] like Figure 1 and Figure 2 As shown, in one embodiment, the deformation portion 13 is an S-shaped curved structure formed by extending from the first end to the second end in a straight line and / or a curve. Specifically, the first end of the deformation portion 13 is connected to the first connecting portion 11, and the second end of the deformation portion 13 is connected to the second connecting portion 12. The deformation portion 13 is formed by extending from the first end to the second end in an S-shaped curve, and the direction of the S-shaped curve extension is consistent with the direction from the first connecting portion 11 to the second connecting portion 12. The elastic component 10 is bent in an S shape as a whole. The elastic deformation of the elastic component 10 bent in an S shape is large, and good compliance can be provided when the vibration displacement of the vibration unit 40 is large. The shape of the elastic component 10 of the present invention can be flexibly set according to actual conditions. In other embodiments, the elastic component 10 can also be bent in a spiral, serpentine or other shapes.

[0067] In one embodiment, the width of the deformation portion 13 gradually increases from the first connection portion 11 to the second connection portion 12, and the extension lines of the two sides of the width direction of the deformation portion 13 intersect at a point in the direction of the first connection portion 11 away from the second connection portion 12 to form an acute angle α. Among them, the angle value of the acute angle α has a very obvious effect on the mechanical stiffness of the elastic component 10. When other parameters are the same, the larger the angle value of the acute angle α, the lower the mechanical stiffness Kms value, and the greater the elastic change when the deformation portion 13 of the elastic component 10 undergoes elastic deformation, the better the linear performance of the elastic component 10. In a preferred embodiment, the angle of the acute angle α is not less than 10°.

[0068] In another embodiment, the width of the deformable portion 13 gradually decreases from the first connection portion 11 to the second connection portion 12, and the extension lines of the two sides of the width direction of the deformable portion 13 intersect at a point in the direction of the second connection portion 12 away from the first connection portion 11 to form an acute angle α. This embodiment flexibly adjusts the structure of the deformable portion 13 according to the actual situation of the application device 100. This embodiment has the same effect as the above embodiment, and will not be repeated here. Based on the same reason as the above embodiment, the angle of the acute angle α is not less than 10°.

[0069] In the deformation portion 13 of the present embodiment, each bend is a bending line segment 133, and the ends of two adjacent bending line segments 133 are connected by an arc line segment 134. The line widths of the arc line segment 134 and the two bending line segments 133 connected thereto are equal or are set gradually. The arc line segment 134 can play a transition role to avoid a large stress concentration caused by a direct bend between two adjacent bending line segments 133. In one embodiment, the line widths of the arc line segment 134 and the two bending line segments 133 connected thereto are equal, which is convenient for manufacturing. In another embodiment, the line widths of the arc line segment 134 and the two bending line segments 133 connected thereto are set gradually, so that the line width of the arc line segment 134 can be flexibly adjusted according to the stress concentration situation to reduce stress concentration.

[0070] The line widths of the first connection portion 11, the second connection portion 12, and the bending line segments 133 and the arc line segments 134 in the widening area 131 are greater than the line widths of the bending line segments 133 and the arc line segments 134 in the non-widening area 132, so that the stress concentration of the elastic component 10 is further reduced by performing local widening treatment on the first connection portion 11, the second connection portion 12, and the bending line segments 133 and the arc line segments 134 in the widening area 131, which have large elastic deformations, and the local widening treatment can change the overall vibration frequency of the elastic component 10, eliminate resonance, and optimize product performance. In one embodiment, the line widths of the first connection portion 11, the second connection portion 12, and the bending line segments 133 and the arc line segments 134 in the widening area 131 are B1, and the line widths of the bending line segments 133 and the arc line segments 134 in the non-widening area 132 are b1, where b1<B1≤8b1.

[0071] In this embodiment, the gap between the first connecting portion 11 and the adjacent bending line segment 133, the gap between two adjacent bending line segments 133, the gap between the second connecting portion 12 and the adjacent bending line segment 133, and the diameter of the arc line segment 134 are all greater than or equal to the thickness of the elastic component 10, so as to facilitate stamping. The thickness of the elastic component 10 in this embodiment can be 0.1 mm to 0.5 mm, and the above-mentioned gaps and the diameter of the arc line segment 134 can be set to 1.5 times the thickness of the elastic component 10.

[0072] In this embodiment, an opening 135 is formed between two adjacent bending line segments 133 at a position relative to the arc line segment 134, and a damping member 14 is provided in the opening 135 in the non-widened area 132, and the damping member 14 connects the two adjacent bending line segments 133. The material of the damping member 14 includes at least one of metal material, rubber material, silicone material, glue material, and foam material; and / or, the shape of the damping member 14 is a sheet structure or a linear structure, and it is sufficient to connect the two adjacent bending line segments 133.

[0073] In one embodiment, the damping member 14 is damping glue, and the elastic component 10 is partially coated or injection-molded with damping glue in the non-widened area 132. The damping glue is at the opening 135 and connects two adjacent bending line segments 133. The damping glue improves the resonant frequency of the elastic component 10, eliminates resonance, and further optimizes product performance.

[0074] like Figures 3 to 9 As shown, in another embodiment, a central area 137 is provided between the first end and the second end of the deformation portion 13; the deformation portion 13 extends from the first end to the central area 137 in a straight line and / or a curve along a first direction to the central area 137, and then extends from the central area 137 in a straight line and / or a curve along a direction opposite to the first direction to the second end. Specifically, the deformation portion 13 is a spiral structure, and the deformation portion 13 extends from the first end to the central area 137 in a clockwise or counterclockwise spiral to the central area 137, and then extends from the central area 137 in a counterclockwise or clockwise spiral to the second end, so that the deformation portion 13 is a spiral structure that extends in two opposite directions respectively, has a large elastic deformation, and can provide good compliance when the vibration unit 40 has a large vibration displacement. The first connection part 11 and the second connection part 12 are respectively located on both sides of the deformation part 13, and the first end and the second end of the deformation part 13 can be connected to the first connection part 11 or the second connection part 12 at any corresponding position, that is, the first end of the deformation part 13 is connected to the first connection part 11, and the second end of the deformation part 13 is connected to the second connection part 12, or the first end of the deformation part 13 is connected to the second connection part 12, and the second end of the deformation part 13 is connected to the first connection part 11. Further, the deformation part 13 is a centrally symmetrical structure along its own center point, which is easy to manufacture on the one hand, and the first end and the second end of the deformation part 13 can be interchanged on the other hand, which is convenient for use.

[0075] In another embodiment, the deformation part 13 is a square-shaped spiral-like structure, and the deformation part 13 extends from the first end to the central area 137 along a straight line and a curve to the central area 137, and then extends from the central area 137 along a curve and a straight line to the second end, so that the deformation part 13 is a spiral-like structure extending along a straight line and a curve in two opposite directions, and has a large elastic deformation, which can provide good compliance when the vibration unit 40 has a large vibration displacement. The first connecting part 11 and the second connecting part 12 are respectively located on both sides of the deformation part 13, and the first end and the second end of the deformation part 13 can be connected to the first connecting part 11 or the second connecting part 12 at will, that is, the first end of the deformation part 13 is connected to the first connecting part 11, and the second end of the deformation part 13 is connected to the second connecting part 12, or the first end of the deformation part 13 is connected to the second connecting part 12, and the second end of the deformation part 13 is connected to the first connecting part 11. The present invention can flexibly set the deformation part 13 to be a spiral structure or a square-shaped spiral-like structure according to actual conditions, which is simple and convenient.

[0076] In this embodiment, each bend in the deformation part 13 is a spiral line segment 136, and any two adjacent spiral line segments 136 are arranged at intervals to provide sufficient elastic deformation. Furthermore, the spacing between any two adjacent spiral line segments 136 is at least greater than one times the cross-sectional width of the spiral line segment 136, further improving the elastic deformation degree of the deformation part 13. In addition, the deformation part 13 with a spiral structure can, on the one hand, reduce the stress concentration of the deformation part 13, increase fatigue strength, and reduce the risk of fracture of the elastic component 10, and on the other hand, provide sufficient processing space to avoid the tool scratching the wire during the processing process, ensuring that the performance of the elastic component 10 is not affected.

[0077] Each bend in the deformation part 13 is a spiral line segment 136, and any two adjacent spiral line segments 136 are arranged at intervals to provide sufficient elastic deformation. Further, the spacing between any two adjacent spiral line segments 136 is at least greater than one times the line width of the spiral line segment 136, further improving the elastic deformation degree of the deformation part 13. In order to further reduce the stress concentration in the area with large elastic deformation, the line width of the spiral line segment 136 can be set gradually, such as widening the local area with large elastic deformation. Specifically, the line width of the first connecting part 11, the second connecting part 12 and the spiral line segment 136 located in the widened area 131 is greater than the line width of the spiral line segment 136 in the non-widened area 132. In addition, by locally widening the spiral line segment 136 located in the widened area 131, the overall vibration frequency of the elastic component 10 can be changed, resonance can be eliminated, and product performance can be optimized. In this embodiment, the line width of the first connecting portion 11 , the second connecting portion 12 and the spiral line segment 136 in the widened area 131 is B2, and the line width of the spiral line segment 136 in the non-widened area 132 is b2, wherein b2<B2≤8b2.

[0078] Furthermore, the gap between the first connecting portion 11 and the adjacent spiral segment 136, the gap between two adjacent spiral segments 136, and the gap between the second connecting portion 12 and the adjacent spiral segment 136 are all greater than or equal to the thickness of the elastic component 10, so as to facilitate stamping. The thickness of the elastic component 10 in this embodiment can be 0.1 mm to 0.5 mm, and the above-mentioned gaps can be set to 1.5 times the thickness of the elastic component 10.

[0079] The gap between the spiral segment 136 connected to the first connection part 11 and the adjacent spiral segment 136, and the gap between the spiral segment 136 connected to the second connection part 12 and the adjacent spiral segment 136 are both provided with a damping member 14, and the damping member 14 connects two adjacent spiral segments 136. The material of the damping member 14 includes at least one of metal material, rubber material, silicone material, glue material, and foam material; and / or, the shape of the damping member 14 is a sheet structure or a linear structure, and only needs to connect two adjacent spiral segments 136.

[0080] In one embodiment, the damping member 14 is a damping glue, and the helical segment 136 connected to the first connecting portion 11 has a large amplitude, so the damping glue is locally coated or injected at the gap between the helical segment 136 and the adjacent helical segment 136, and the damping glue connects the two helical segments 136, improves the resonant frequency of the elastic component 10, eliminates resonance, and further optimizes product performance. Similarly, the helical segment 136 connected to the second connecting portion 12 has a large amplitude, so the damping glue is locally coated or injected at the gap between the helical segment 136 and the adjacent helical segment 136, and the damping glue connects the two helical segments 136, improves the resonant frequency of the elastic component 10, eliminates resonance, and further optimizes product performance.

[0081] Existing elastic wave materials are easily affected by environmental changes, easily deformed in high temperature and high humidity environments, their hardness changes, and their fatigue resistance is relatively poor. The elastic component 10 of the present invention is made of any one of phosphor bronze, iron, steel or alloy materials, is not easily affected by environmental changes, is not easily deformed in high temperature and high humidity environments, and its hardness does not change. It has good fatigue resistance, so that the application device 100 can work in harsh environments, optimize product performance, and improve the wide application of the application device 100.

[0082] The application device 100 is a speaker, a motor or a multifunctional vibration device, and has a wide range of applications. The present invention is described by taking the application device 100 as a speaker. The application device 100 includes a vibration unit 40 and the elastic component 10 mentioned above, and the elastic component 10 is used to balance the vibration of the vibration unit 40 along a preset direction. The vibration unit 40 can be one or more, and the vibration unit 40 can be arranged in a vertical direction or a horizontal direction. Among them, the application device 100 also includes a bracket 70. In one embodiment, the vibration unit 40 includes a diaphragm 60 and a voice coil 20 connected to the diaphragm 60; the first connecting portion 11 is connected to the voice coil 20, the second connecting portion 12 is connected to the bracket 70, and / or the bracket 70 is a shell or a yoke; or, in another embodiment, the vibration unit 40 includes a diaphragm 60, a voice coil 20 and a drag cup 80, the voice coil 20 and the drag cup 80 are connected to the same side of the diaphragm 60, the first connecting portion 11 is connected to the drag cup 80, the second connecting portion 12 is connected to the bracket 70, and / or the bracket 70 is a shell or a yoke. The specific structure of the elastic component 10 in the application device 100 refers to the above embodiment. Since the application device 100 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0083] In the application device 100 of this embodiment, the number of elastic components 10 is at least three, and at least three elastic components 10 are evenly spaced along the periphery of the vibration unit 40. In one embodiment, the number of elastic components 10 is three, and the three elastic components 10 are evenly spaced along the periphery of the vibration unit 40, which enhances the centering effect of the voice coil 20. Specifically, when the vibration unit 40 vibrates vertically, at least three elastic components 10 form at least three constraints on the vibration unit 40 in the horizontal direction, which can prevent the vibration unit 40 from polarizing, and the elastic component 10 moves in the vertical direction following the vibration unit 40, which enhances the centering effect on the vibration unit 40. In other embodiments, the number of elastic components 10 can also be four, five, six or other numbers. The number of elastic components 10 in the application device 100 of the present invention can be flexibly adjusted according to actual conditions, and the present invention does not limit the number of elastic components 10.

[0084] The application device 100 may include at least one elastic component group 30, and one elastic component group 30 includes at least three elastic components 10 located in the same horizontal plane. In the same elastic component group 30, the shapes of the three elastic components 10 may be the same or different. For example, among the three elastic components 10 in the same elastic component group 30, one elastic component 10 may be bent in an S shape, and the other two may be bent in a spiral shape. In addition, in the same elastic component group 30, the line width or material of the three elastic components 10 may be the same or different. For example, due to different material properties, among the three elastic components 10, if one of the elastic components 10 is made of phosphor bronze, its line width may be set to 0.4 mm, if another elastic component 10 is made of beryllium copper, its line width may be set to 0.3 mm, and if another elastic component 10 is made of 316 steel, its line width may be set to 0.2 mm.

[0085] In addition, among the three elastic components 10 of the same elastic component group 30, two of the elastic components 10 are of a conductive structure, and the remaining elastic components 10 are of a non-conductive structure. The elastic component 10 of the conductive structure has a conductive function, and can transmit an electrical signal to the vibration unit 40 of the application device 100. Specifically, the elastic component 10 is electrically connected to the wiring part of the voice coil 20 through its first connecting part 11, and the second connecting part 12 is connected to an external power source, so as to transmit the electrical signal between the vibration unit 40 and the outside through the elastic component 10; in addition, the elastic component 10 also constrains the reciprocating vibration of the vibration unit 40 according to the vibration offset state of the vibration unit 40 through the elastic deformation of its deformation part 13, so that the vibration unit 40 is stabilized in a preset central area, and the polarization of the vibration unit 40 is prevented, so that the reciprocating vibration of the vibration unit 40 is more stable. Therefore, the elastic component 10 has both the functions of conductivity and centering, realizing the integration of these two functions. Only two elastic components 10 of the present invention need to be arranged in the application device 100 to simultaneously realize the conduction function of the internal and external circuits and the centering function of the vibration of the voice coil 20. This not only saves space in the cavity of the application device 100, further facilitates the thinning of the product, but also effectively simplifies the assembly process of the application device 100.

[0086] The application device 100 may include multiple elastic component groups 30, such as two or three elastic component groups 30. Two elastic component groups 30 are used as an example for explanation. The two elastic component groups 30 are arranged at intervals along the vertical direction of the vibration unit 40. Each elastic component group 30 includes four elastic components 10, and the four elastic components 10 are located in the same horizontal plane. The eight elastic components 10 of the two elastic component groups 30 are arranged in a staggered manner in the vertical direction, which not only enhances the centering effect on the vibration unit 40, but also has good symmetry and flatness of the mechanical stiffness Kms, meeting the large displacement fatigue requirements. Compared with one elastic component group 30, multiple elastic component groups 30, on the one hand, enhance the centering effect on the vibration unit 40, and on the other hand, reduce stress concentration, and can reduce the line width of the elastic component 10 accordingly, making it easier to manufacture.

[0087] In the application device 100 of the present invention, the number and arrangement of the elastic component groups 30, as well as the shape, structure, line width, material and properties of each elastic component group 30 can be flexibly set according to actual needs, with good compatibility and a wide range of applications.

[0088] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An application device, characterized in that: The application device includes a plurality of elastic components, and the elastic components include a first connection portion, a second connection portion, and a deformation portion located between the first connection portion and the second connection portion; the first connection portion and the second connection portion are respectively connected to different components in the application device, and the different components can move relative to each other, or the different components are relatively stationary; 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; The deformation portion is formed by the first end extending to the second end in a straight line and / or a curve along the same direction or different directions; Each of the elastic components is integrally stamped from a sheet structure and has a gap formed therein, wherein a damping component connected to the elastic component is disposed in the gap; The deformation portion is a planar structure, and the deformation portion, the first connection portion and the second connection portion are located in the same horizontal plane.

2. The application device according to claim 1, characterized in that: The elastic component is a linear bending structure.

3. The application device according to claim 2, characterized in that: The areas of the deformation part close to the first connecting part and the second connecting part form two widened areas correspondingly, the area of ​​the deformation part located between the two widened areas is a non-widened area, and the line width of the deformation part located in the widened area is greater than the line width of the deformation part in the non-widened area.

4. The application device according to claim 3, characterized in that: The deformation portion is an S-shaped curved structure formed by extending from the first end to the second end in a straight line and / or a curve.

5. The application device according to claim 4, characterized in that: The width of the deformable portion gradually increases from the first connection portion to the second connection portion, and the extension lines of the two sides of the width direction of the deformable portion intersect at a point in the direction of the first connection portion away from the second connection portion to form an acute angle; or, The width of the deformation portion gradually decreases from the first connection portion to the second connection portion, and the extension lines of the two side edges in the width direction of the deformation portion intersect at a point in the direction where the second connection portion is away from the first connection portion to form an acute angle.

6. The application device according to claim 4, characterized in that: Each bend in the deformation portion forms a bending line segment, and the ends of two adjacent bending line segments are connected by an arc line segment. The arc line segment and the two bending line segments connected thereto have the same line width or are gradually set.

7. The application device according to claim 6, characterized in that: The line widths of the first connecting portion, the second connecting portion, and the bending line segment and the arc line segment in the widening area are greater than the line widths of the bending line segment and the arc line segment in the non-widening area.

8. The application device according to claim 6, characterized in that: The gap between the first connecting portion and the bending line segment adjacent thereto, the gap between two adjacent bending line segments, the gap between the second connecting portion and the bending line segment adjacent thereto, and the diameter of the arc line segment are all greater than or equal to the thickness of the elastic component.

9. The application device according to claim 6, characterized in that: The gap between two adjacent bending line segments forms an opening relative to the position of the circular arc segment, and the opening located in the non-widened area is provided with the damping member, which connects the two adjacent bending line segments.

10. The application device according to claim 3, characterized in that: A central area is provided between the first end and the second end; the deformation portion extends from the first end to the central area in a straight line and / or a curve along a first direction to the central area, and then extends from the central area in a straight line and / or a curve along a direction opposite to the first direction to the second end.

11. The application device according to claim 10, characterized in that: The deformation portion is in a spiral structure, and the deformation portion is formed by extending from the first end to the central area along a clockwise or counterclockwise spiral to the central area, and then extending from the central area along a counterclockwise or clockwise spiral to the second end.

12. The application device according to claim 11, characterized in that Each bend in the deformation portion forms a spiral line segment, and any two adjacent spiral line segments are arranged at intervals.

13. The application device according to claim 12, characterized in that: The line widths of the first connecting portion, the second connecting portion, and the spiral line segment in the widening region are greater than the line width of the spiral line segment in the non-widening region.

14. The application device according to claim 12, characterized in that: The gap between the first connecting portion and the adjacent spiral segment, the gap between two adjacent spiral segments, and the gap between the second connecting portion and the adjacent spiral segment are all greater than or equal to the thickness of the elastic component.

15. The application device according to claim 14, characterized in that: The damping member is provided at the gap between the spiral segment connected to the first connection part and the gap between the spiral segment connected to the second connection part and the gap between the spiral segment adjacent to the spiral segment, and the damping member connects two adjacent spiral segments.

16. The application device according to any one of claims 1 to 15, characterized in that: The elastic component is made of any one of phosphor bronze, iron, steel or alloy materials.

17. The application device according to any one of claims 1 to 15, characterized in that: The application device further comprises a vibration unit, and the elastic component is used to balance the vibration of the vibration unit along a preset direction.

18. The application device according to claim 17, characterized in that: The number of the vibration units may be one or more, and the vibration units may be arranged in a vertical direction or a horizontal direction.

19. The application device according to claim 17, characterized in that: The number of the elastic components is at least three, and at least three of the elastic components are evenly spaced along the periphery of the vibration unit.

20. The application device according to claim 19, characterized in that Two of the elastic components are conductive structures, and the remaining elastic components are non-conductive structures.

21. The application device according to claim 17, characterized in that: The application device further includes a bracket, the vibration unit includes a diaphragm and a voice coil connected to the diaphragm; the first connecting portion is connected to the voice coil, and the second connecting portion is connected to the bracket; Alternatively, the vibration unit includes a diaphragm, a voice coil and a drag cup, the voice coil and the drag cup are connected to the same side of the diaphragm, the first connection portion is connected to the drag cup, and the second connection portion is connected to the bracket; And / or, the bracket is a housing or a yoke.

22. The application device according to claim 16, characterized in that: The application device is a speaker, a motor or a multifunctional vibration device.

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