Vibration assembly for sound-generating device and sound-generating device

Abstract

The present invention discloses a vibration assembly for a sound-generating device and a sound-generating device, the vibration assembly includes a cone, a folded ring and an annular mass block, the folded ring is arranged in an annular shape, the outer periphery of the cone is connected to the inner ring of the folded ring; the annular mass block is arranged on the surface of the cone, the annular mass block includes an annular body, a first mass block and a second mass block; a plurality of the first mass blocks and a plurality of the second mass blocks are respectively arranged on both sides of the annular body along the surface of the cone. The vibration assembly of the present invention arranges annular mass blocks of alternating width on the cone, so that the structure of the position on the cone where the reaction force is greater is strengthened by the annular mass block, thereby dispersing the stress of the cone when it vibrates, reducing the split vibration of the cone when it vibrates, making the frequency response curve of the sound-generating device smoother, and improving the sound quality of the sound-generating device.

Description

Technical Field

[0001] The present invention belongs to the technical field of sound-to-electric conversion, and in particular, the present invention relates to a vibration component for a sound-generating device and a sound-generating device. Background Art

[0002] As a kind of equipment for people's daily entertainment and leisure, as people's requirements for quality of life are getting higher and higher, higher requirements are also put forward for sound-generating devices.

[0003] As an important sound-generating device, the quality of the speaker itself directly affects the quality of the sound. The vibration component is one of the main components of the speaker. The sound of the speaker is mainly produced by the vibration of the vibration component. The existing vibration component has a mainly linear cone structure. The edge of this vibration component is relatively fragile, resulting in large peaks and valleys in the mid-high frequency band, causing the attenuation of the mid-high frequency curve, which in turn affects the quality of the sound. Summary of the invention

[0004] An object of the present invention is to provide a vibration assembly for a sound-generating device and a sound-generating device.

[0005] According to a first aspect of the present invention, there is provided a vibration assembly for a sound-generating device, comprising:

[0006] A cone and a folding ring, wherein the folding ring is arranged in an annular shape, and the outer periphery of the cone is connected to the inner circle of the folding ring;

[0007] An annular mass block, the annular mass block is arranged on the surface of the cone, the annular mass block comprises an annular body, a plurality of first mass blocks and a plurality of second mass blocks;

[0008] A plurality of the first mass blocks and a plurality of the second mass blocks are respectively arranged on both sides of the annular body along the surface of the cone.

[0009] Optionally, the number of the first mass blocks is equal to that of the second mass blocks, the first mass blocks and the second mass blocks both have a radial symmetry axis parallel to the cone, and the symmetry axis of each of the first mass blocks coincides with that of one of the second mass blocks.

[0010] Optionally, the number of the first mass blocks is equal to the number of the second mass blocks, and a plurality of the first mass blocks and a plurality of the second mass blocks are arranged alternately.

[0011] Optionally, the first mass block and the second mass block are both fan-shaped.

[0012] Optionally, the first mass block is located on a side of the annular body close to the periphery of the cone, and an outer edge of the first mass block is aligned with an inner diameter of the folding ring.

[0013] Optionally, the second mass block is located on one side of the annular body close to the center of the cone, the inner edge of the second mass block is at a first distance from the inner edge of the cone, the inner circle of the folding ring is at a second distance from the inner edge of the cone, and the ratio of the second distance to the first distance is in the range of 4:1-2:1.

[0014] Optionally, along the circumferential direction of the cone, the width of the first mass block is greater than the width of the second mass block.

[0015] Optionally, along the direction from the periphery of the cone basin to the cone center, the height of the first mass block is equal to the height of the second mass block.

[0016] Optionally, the annular mass block and the cone are formed integrally.

[0017] Optionally, the number of the first mass blocks is an odd number not less than 3.

[0018] According to a second aspect of the present invention, there is provided a sound-generating device, comprising the vibration assembly described in the first aspect.

[0019] A technical effect of the present invention is:

[0020] The present invention discloses a vibration assembly for a sound-generating device and a sound-generating device, the vibration assembly comprises a cone, a folding ring and an annular mass block, the folding ring is arranged in an annular shape, the outer periphery of the cone is connected to the inner ring of the folding ring; the annular mass block is arranged on the surface of the cone, the annular mass block comprises an annular body, a first mass block and a second mass block; a plurality of the first mass blocks and a plurality of the second mass blocks are respectively arranged on both sides of the annular body along the surface of the cone. The vibration assembly of the present invention disperses the stress of the cone when it vibrates, and reduces the split vibration of the cone when it vibrates.

[0021] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0023] Figure 1 This is a schematic diagram of the structure of a vibration component used in a sound-generating device according to an embodiment of the present invention;

[0024] Figure 2The figure is a comparison diagram of THD (Total Harmonic Distortion) curves of the sound-generating device using the vibration component according to an embodiment of the present invention and a traditional sound-generating device.

[0025] Among them: 1-cone basin; 2-folded ring; 3-annular mass block; 31-first mass block; 32-second mass block; 33-annular body. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0029] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0031] Reference Figure 1 The present invention discloses a vibration assembly for a sound-generating device, comprising:

[0032] A cone 1, a folding ring 2 and an annular mass block 3, wherein the folding ring 2 is arranged in an annular shape, and the outer periphery of the cone 1 is connected to the inner circle of the folding ring 2; the annular mass block 3 is arranged on the surface of the cone 1, and the annular mass block 3 includes an annular body 33, a first mass block 31 and a second mass block 32; a plurality of the first mass blocks 31 and a plurality of the second mass blocks 32 are respectively arranged on both sides of the annular body 33 along the surface of the cone 1.

[0033] When a traditional sound-generating device is subjected to harmonic vibration, the reaction force of the resonance wave on the vibration component is very large. In addition, the structure of the window opening on the basin frame causes a large difference in the reaction force received by the position corresponding to the window opening and the position corresponding to the non-window opening on the vibration component. This difference in reaction force leads to the split vibration of the vibration component, resulting in mid- and high-frequency distortion of the sound-generating device, which seriously affects the sound quality of the sound-generating device. The vibration component of the present invention arranges an annular mass block 3 with alternating widths on the cone 1, so that the position on the cone 1 that is subjected to a larger reaction force is strengthened by the annular mass block 3, thereby dispersing the stress of the cone 1 when it vibrates, reducing the split vibration of the cone 1 when it vibrates, making the frequency response curve of the sound-generating device smoother, and improving the sound quality of the sound-generating device.

[0034] In a specific embodiment, multiple first mass blocks 31 are evenly arranged on the periphery of the annular body 33, and multiple second mass blocks 32 are evenly arranged on the inner side of the annular body 33. Multiple first mass blocks 31 and multiple second mass blocks 32 are integrally formed with the annular body 33. This can not only disperse the stress when the cone basin 1 vibrates and reduce the split vibration when the cone basin 1 vibrates, but also strengthen the connection strength between the first mass block 31 and the second mass block 32 and the annular body 33.

[0035] In another specific embodiment, the annular mass block 3 can be arranged on the inner surface of the cone 1, which can not only effectively disperse the stress of the cone 1 during the segmentation vibration, but also avoid the annular mass block 3 being exposed and affecting the appearance; in addition, the annular mass block 3 can also be arranged on the outer surface of the cone 1, and the present invention is not limited to this.

[0036] Optionally, the number of the first mass blocks 31 and the second mass blocks 32 is equal, the first mass blocks 31 and the second mass blocks 32 both have a symmetry axis parallel to the radial direction of the cone 1, and the symmetry axis of each first mass block 31 coincides with the symmetry axis of one second mass block 32.

[0037] Specifically, the symmetry axis of the first mass block 31 and the symmetry axis of the second mass block 32 both refer to their projections on the cone 1. Since a plurality of the first mass blocks 31 can be uniformly distributed in annular shapes on the periphery of the annular body 33, and a plurality of the second mass blocks 32 can be uniformly distributed in annular shapes on the inner ring of the annular body 33, when the number of the first mass blocks 31 and the second mass blocks 32 are equal, each of the first mass blocks 31 coincides with the symmetry axis of one of the second mass blocks 32, which further strengthens the structural strength of the cone 1 at the location where the annular mass block 3 is set, and disperses the stress of the cone 1 during vibration.

[0038] In a specific embodiment, see Figure 1 The number of the first mass blocks 31 is seven, and the number of the second mass blocks 32 is also seven. The symmetry axis of each of the first mass blocks 31 coincides with the axis of symmetry of one of the second mass blocks 32, respectively, so as to form the cone 1 having seven key reinforced locations. The seven key reinforced locations correspond to the areas of the cone 1 subjected to greater reaction force, so as to specifically reduce the distortion caused by the stress when the cone 1 vibrates.

[0039] Specifically, the material and size of each first mass block 31 and each second mass block 32 can be the same, which facilitates the rapid prototyping of the annular mass block 3; of course, the material and size of each first mass block 31 and each second mass block 32 can be different, for example, the annular mass block 3 with high strength and large size is used in the area with relatively large vibration, and the annular mass block 3 with low strength and small size is used in the area with relatively small vibration, which can further balance the vibration of the cone 1.

[0040] Optionally, the number of the first mass blocks 31 is equal to the number of the second mass blocks 32 , and a plurality of the first mass blocks 31 and a plurality of the second mass blocks 32 are alternately arranged.

[0041] Since the plurality of first mass blocks 31 can be uniformly distributed in annular form on the periphery of the annular body 33, and the plurality of second mass blocks 32 can be uniformly distributed in annular form on the inner ring of the annular body 33, when the number of the first mass blocks 31 and the second mass blocks 32 are equal, the plurality of first mass blocks 31 and the plurality of second mass blocks 32 are staggered, thus forming a circle of the annular mass blocks 3 that are nearly continuously reinforced, further strengthening the structural strength of the peripheral side of the cone 1 and dispersing the stress of the cone 1 during vibration.

[0042] In a specific embodiment, the number of the first mass blocks 31 is seven, and the number of the second mass blocks 32 is also seven. The seven first mass blocks 31 and the seven second mass blocks 32 are staggered to form a circle of nearly continuous reinforcement of the annular mass blocks 3 to strengthen the cone 1, forming a circle of area that can withstand a large reaction force, and specifically weakening the distortion caused by the stress when the cone 1 vibrates.

[0043] Optionally, the center of the annular body 33 coincides with the cone center of the cone 1. The coincidence of the center of the annular body 33 with the cone center of the cone 1 can enable the cone 1 to well cope with the stress transmitted from the inner circle of the cone 1 to the outer circle of the cone 1, thereby achieving uniform dispersion of the stress.

[0044] Optionally, the first mass block 31 and the second mass block 32 are both in a fan-shaped shape. Specifically, the fan-shaped shape can be the area difference between a fan-shaped shape and another fan-shaped shape with the same central angle but a smaller radius. The first mass block 31 and the second mass block 32 are both in a fan-shaped shape, which can be well combined with the annular body 33, and can disperse the stress at the connection between the annular mass block 3 and the cone 1, avoiding structural damage to the annular mass block 3 and the cone 1 caused by stress concentration.

[0045] Optionally, the first mass block 31 is located on a side of the annular body 33 close to the periphery of the cone 1 , and an outer edge of the first mass block 31 is aligned with an inner diameter of the folding ring 2 .

[0046] At this time, the outer edge of the first mass block 31 is the same as the inner diameter of the fold ring 2, that is, the outer peripheries of the plurality of first mass blocks 31 are in contact with the inner circle of the fold ring 2. Since the distortion and split vibration of the cone 1 mainly occur at the position where the cone 1 is close to the fold ring 2, arranging the plurality of first mass blocks 31 at this position can disperse the deformation stress of the cone 1 in a targeted manner and improve the service life of the cone 1.

[0047] Optionally, the second mass block 32 is located on one side of the annular body 33 close to the center of the cone 1, the inner edge of the second mass block 32 is at a first distance from the inner edge of the cone 1, the inner circle of the folding ring 2 is at a second distance from the inner edge of the cone 1, and the ratio of the second distance to the first distance is in the range of 4:1-2:1, preferably 3:1. In this case, the annular mass block 3 can just cover the position of the distortion and split vibration of the cone 1, dispersing the deformation stress of the cone 1 and improving the service life of the cone 1.

[0048] Optionally, along the circumferential direction of the cone 1 , the width of the first mass block 31 is greater than the width of the second mass block 32 .

[0049] Since the stress deformation of the cone 1 is transmitted from its inner ring to the outer ring of the cone 1, the closer to the outer ring of the cone 1, the stronger the distortion and segmentation vibration of the cone 1. At this time, the width of the first mass block 31 close to the outer ring of the cone 1 is set to be greater than the width of the second mass block 32, so that the structure of the mass block and the distortion and segmentation vibration degree of the cone 1 can be well matched, thereby effectively reducing the segmentation vibration when the cone 1 vibrates.

[0050] In a specific embodiment, see Figure 1 , the first mass blocks 31 are all sector-shaped, and the central angle corresponding to the sector-shaped first mass blocks 31 is α, and the second mass blocks 32 are all sector-shaped, and the central angle corresponding to the sector-shaped second mass blocks 32 is also α. Although the central angle corresponding to the first mass block 31 is the same as the central angle corresponding to the second mass block 32, since the first mass block 31 is located outside the second mass block 32, it can still be ensured that the width of the first mass block 31 is greater than the width of the second mass block 32. In addition, the central angle corresponding to the first mass block 31 and the central angle corresponding to the second mass block 32 can also be different, as long as the width of the first mass block 31 is greater than the width of the second mass block 32.

[0051] Further, see Figure 1 , each sector-shaped first mass block 31 has the same size and is evenly distributed on the periphery of the annular body 33, and each sector-shaped second mass block 32 has the same size and is evenly distributed on the inner circle of the annular body 33. At this time, the central angle corresponding to the position on each annular body 33 where the first mass block 31 is not set is β, and β=(360°-7*α) / 7 can be satisfied.

[0052] Optionally, along the direction from the periphery of the cone 1 to the cone center, the height of the first mass block 31 is equal to the height of the second mass block 32. Since the first mass block 31 and the second mass block 32 are arranged in areas where the distortion and segmentation vibration of the cone 1 are relatively strong, in order to better disperse the vibration stress of the cone 1 while ensuring the uniformity of the structure of the cone 1, the height of the first mass block 31 and the height of the second mass block 32 can be set to the same height.

[0053] Optionally, the annular mass block 3 is integrally formed with the cone 1. Specifically, the cone 1 may be made of one of fiber material, rubber material or plastic material, and the annular mass block 3 may also be made of fiber material, rubber material or plastic material. When the annular mass block 3 and the cone 1 are made of the same material, the annular mass block 3 and the cone 1 may be integrally hot-pressed, which not only increases the bonding strength between the annular mass block 3 and the cone 1, but also simplifies the processing technology of the cone 1 and improves the production efficiency of the cone 1.

[0054] In addition, the materials of the annular mass block 3 and the cone basin 1 can also be different materials and connected by bonding. In this way, while ensuring the bonding strength between the annular mass block 3 and the cone basin 1, a variety of combinations of the materials of the annular mass block 3 and the cone basin 1 can be provided, thereby achieving a diversified effect of coping with the split vibration of the cone basin 1.

[0055] Optionally, the number of the first mass blocks 31 is an odd number not less than 3. In this way, the plurality of first mass blocks 31 can be asymmetrically distributed on the surface of the cone 1, and stress can be better dispersed when the cone 1 vibrates, thereby reducing the split vibration of the cone 1; similarly, the number of the second mass blocks 32 can also be an odd number greater than or equal to 3.

[0056] The invention also discloses a sound-generating device, comprising the vibration component.

[0057] Specifically, the sound-generating device may be a speaker, comprising:

[0058] Magnetic components;

[0059] The vibration component further comprises a voice coil capable of interacting with the magnetic component to generate vibration, the voice coil being connected to the inner circle of the paper cone of the vibration component;

[0060] A basin frame, one end of which is connected to the outer ring of the paper basin of the vibration component, and the other end of which is connected to the magnetic component.

[0061] The vibration component structure of the present invention can effectively disperse the stress of the cone 1 during vibration, reduce the split vibration of the cone 1 during vibration, make the frequency response curve of the sound-generating device smoother, and improve the sound quality of the sound-generating device.

[0062] Figure 2 A THD (Total Harmonic Distortion) curve comparison diagram of the sound-generating device using a vibration assembly according to an embodiment of the present invention and a conventional sound-generating device is given. Figure 2It can be seen that the THD of the sound-generating device using the vibration component of an embodiment of the present invention is significantly improved compared with the THD of the traditional sound-generating device, especially when the frequency is around 5KHz, the THD peaks and valleys of the sound-generating device using the vibration component of an embodiment of the present invention disappear, which greatly improves the sound quality of the sound-generating device.

[0063] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A vibration assembly for a sound-generating device, characterized in that: include: A cone and a folding ring, wherein the folding ring is arranged in an annular shape, and the outer periphery of the cone is connected to the inner circle of the folding ring; An annular mass block, the annular mass block is arranged on the surface of the cone, the annular mass block comprises an annular body, a plurality of first mass blocks and a plurality of second mass blocks; A plurality of the first mass blocks and a plurality of the second mass blocks are respectively arranged on both sides of the annular body along the surface of the cone basin and are arranged alternately; The second mass block is located on one side of the annular body close to the center of the cone, the inner edge of the second mass block is at a first distance from the inner edge of the cone, the inner circle of the folding ring is at a second distance from the inner edge of the cone, and the ratio of the second distance to the first distance is in the range of 4:1-2:

1.

2. The vibration assembly according to claim 1, characterized in that The number of the first mass blocks is equal to that of the second mass blocks. Both the first mass blocks and the second mass blocks have a radial symmetry axis parallel to the cone. The symmetry axis of each of the first mass blocks coincides with that of one of the second mass blocks.

3. The vibration assembly according to claim 1, characterized in that The number of the first mass blocks is equal to the number of the second mass blocks.

4. The vibration assembly according to claim 1, characterized in that The first mass block and the second mass block are both fan-shaped.

5. The vibration assembly according to claim 1, characterized in that: The first mass block is located on one side of the annular body close to the periphery of the cone, and the outer edge of the first mass block is aligned with the inner diameter of the folding ring.

6. The vibration assembly according to claim 1, characterized in that Along the circumferential direction of the cone, the width of the first mass block is greater than the width of the second mass block.

7. The vibration assembly according to claim 1, characterized in that Along the direction from the periphery of the cone to the cone center, the height of the first mass block is equal to the height of the second mass block.

8. The vibration assembly according to claim 1, characterized in that The annular mass block and the cone are formed integrally.

9. The vibration assembly according to claim 1, characterized in that: The number of the first mass blocks is an odd number not less than 3.

10. A sound-generating device, characterized in that: A vibration component comprising any one of claims 1 to 9.

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