Sound cone group and loudspeaker
Through the design of the projection on the integrated sound basin body and dust cap, the problem of instability in the high frequency band of the vehicle speaker is solved, the high frequency band performance and consistency of the speaker is improved, and the high-quality sound quality experience is achieved.
Patent Information
- Application Number
- CN202421819484.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The response of existing vehicle speakers in the high-frequency part is not stable enough, and the consistency is poor, making it difficult to meet the performance needs of high-quality and cost-effective vehicle audio systems.
The integrated sound basin body design is adopted, and the carcass and dust-proof cap are formed integrally, and multiple protrusions are provided on the dust-proof cap. The protrusions are evenly distributed along the central circumference. Translucent materials are used to improve the strength and acoustic guideline of the dust-proof cap.
It reduces the sound wave reflection and scattering phenomenon, reduces the weight of the sound basin group, improves the sensitivity of the speaker and the ductility, consistency and stability of the high-frequency band, and provides high-quality sound quality performance and high-quality auditory enjoyment.
Smart Images
Figure CN223053110U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of loudspeakers, in particular to a diaphragm assembly and a loudspeaker. Background Art
[0002] With the popularization and development of automobiles, automobiles play an increasingly important role in our lives. People not only focus on the performance and appearance of automobiles, but also pay more attention to the improvement of the driving experience. Among these experiences, in-vehicle audio plays an important role. Whether on a long journey or during daily commuting, a high-quality in-vehicle audio system can greatly enhance the driving experience and become an indispensable part of modern automobiles.
[0003] As a part of the in-vehicle audio, in-vehicle loudspeakers usually include a surround, a body and a dust cap. However, the response of these loudspeakers in the high-frequency part is usually not stable enough, and the consistency is also poor, which is difficult to meet the performance requirements of high-quality and high-cost-effective in-vehicle audio systems. This problem results in a poor experience for drivers when enjoying music and other audio content, and they cannot fully experience the auditory enjoyment brought by a high-quality in-vehicle audio system. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a diaphragm assembly and a loudspeaker, which can effectively expand the high-frequency ductility of the loudspeaker and significantly improve the consistency and stability of the high-frequency band of the loudspeaker.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A diaphragm assembly, including a surround, wherein the diaphragm assembly further includes:
[0007] An integral diaphragm body, the integral diaphragm body includes a body and a dust cap, the body and the dust cap are integrally formed, a first edge portion of the body is connected to the dust cap, and a second edge portion of the body away from the dust cap is connected to the surround; a plurality of protrusions are circumferentially distributed along the center of the dust cap.
[0008] Further, each of the protrusions extends from the center of the dust cap to the edge of the dust cap.
[0009] Further, the protrusion is in a willow leaf shape.
[0010] Further, the plurality of protrusions are evenly spaced along the center circumference of the dust cap.
[0011] Further, the number of the protrusions is set to 3, 4, 5, 6 or 8.
[0012] Further, the total area of the plurality of raised portions accounts for 35%-50% of the total area of the dust cap.
[0013] Further, the raised portion and the dust cap are integrally formed.
[0014] Further, both the surround and the integral diaphragm body are made of light-transmitting materials.
[0015] A loudspeaker, comprising a voice coil. Among them, the loudspeaker further comprises a diaphragm assembly as described in any one of the above, and the dust cap is bonded to the voice coil.
[0016] Advantages of the present utility model:
[0017] The present utility model provides a diaphragm assembly and a loudspeaker, including a surround and an integral diaphragm body. By integrally forming the body and the dust cap, the phenomena of sound wave reflection and scattering, as well as unnecessary audio resonance and sound coloring, generated at the interfaces and connections of the body and the dust cap are reduced. And since the process of gluing the dust cap and the body during the assembly of the diaphragm is reduced, the overall weight of the diaphragm assembly can be reduced, and the sensitivity of the loudspeaker can be further improved. By providing a plurality of raised portions on the dust cap, these raised portions can effectively improve the strength of the dust cap, suppress the splitting vibration of the dust cap at high frequencies, and greatly increase the high-frequency extension of the loudspeaker. Therefore, the diaphragm assembly structure effectively improves the performance of the loudspeaker in the high-frequency band, and at the same time significantly improves the consistency and stability of the high-frequency band of the loudspeaker, enabling the loudspeaker to provide users with high-quality sound performance and high-quality auditory enjoyment. Description of the drawings
[0018] Figure 1 is a sectional view of the diaphragm assembly and the loudspeaker of the present utility model;
[0019] Figure 2 is a top view of the diaphragm assembly and the loudspeaker of the present utility model.
[0020] In the figure:
[0021] 1, surround; 11, first edge portion of the surround; 12, bending portion; 13, second edge portion of the surround;
[0022] 2, integral diaphragm body; 21, body; 22, dust cap; 221, raised portion. Detailed implementation manners
[0023] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all structures.
[0024] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0025] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0026] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0027] Please refer to Figure 1 - Figure 2 As shown, the present utility model provides a diaphragm assembly, which can effectively expand the high-frequency ductility of the loudspeaker and significantly improve the consistency and stability of the high-frequency band of the loudspeaker. The diaphragm assembly includes a surround 1 and an integral diaphragm body 2. The integral diaphragm body 2 includes a body 21 and a dust cap 22. The body 21 and the dust cap 22 are integrally formed. The first edge portion of the body 21 is connected to the dust cap 22, and the second edge portion of the body 21 away from the dust cap 22 is connected to the surround 1. A plurality of protrusions 221 are circumferentially distributed along the center of the dust cap 22.
[0028] By integrally molding the carcass 21 and the dust cap 22, the reflection and scattering of sound waves and unnecessary audio resonance and coloration phenomena generated at the interfaces and joints of the carcass 21 and the dust cap 22 are reduced. Moreover, since the process of gluing the dust cap 22 and the carcass 21 during the assembly of the speaker cone is eliminated, the overall weight of the speaker cone can be reduced, further improving the sensitivity of the speaker. By providing a plurality of protrusions 221 on the dust cap 22, the strength of the dust cap 22 can be effectively increased, and the splitting vibration generated by the dust cap 22 at high frequencies can be suppressed, greatly increasing the high-frequency extension of the speaker. Additionally, the high-frequency extension of the speakers with and without the protrusions 221 was tested separately. The test data showed that the high-frequency range of the speaker cone with the protrusion 221 design extended by about 1000 Hz - 3000 Hz compared to that of the speaker cone without the protrusion 221 structure. Therefore, the test data further indicates that the speaker cone with the protrusion 221 design increases the high-frequency extension of the speaker. Thus, the speaker cone structure effectively improves the performance of the speaker in the high-frequency range, while significantly enhancing the consistency and stability of the high-frequency range of the speaker, enabling the speaker to provide users with high-quality sound performance and a high-quality auditory experience.
[0029] As Figure 2 shown, in some embodiments, to enhance the sound wave directivity, each protrusion 221 extends from the center of the dust cap 22 to the edge of the dust cap 22. By designing the protrusion 221 to extend from the center to the edge of the dust cap 22, sound waves can be better guided to propagate along a specific path, while the vibration stress can be more evenly dispersed, reducing local stress concentration and enhancing the structural stability and durability of the dust cap 22. Exemplarily, the protrusion 221 is in the shape of a willow leaf, and the willow-leaf-shaped protrusion 221 can enable sound waves to pass more smoothly through the surface of the dust cap 22 during propagation.
[0030] Continuing as Figure 2As shown in the figure, in order to further improve the strength of the dust cap 22 and the uniformity of the acoustic wave distribution, a plurality of protrusions 221 are evenly arranged at intervals along the circumference of the center of the dust cap 22. The evenly distributed protrusions 221 make the propagation of the acoustic wave on the surface of the dust cap 22 more uniform, reducing the phenomenon of acoustic wave concentration or attenuation, thereby maintaining the uniformity and consistency of the sound. Moreover, during the process of vibrating and generating sound, the diaphragm group can obtain uniform force and stronger rigidity, and is not easily deformed during large dynamic vibration. Further, the number of the protrusions 221 can be 3, 4, 5, 6 or 8. When the number of the protrusions 221 is 3, the included angle between two adjacent protrusions 221 is 120°; when the number of the protrusions 221 is 4, the included angle between two adjacent protrusions 221 is 90°; when the number of the protrusions 221 is 5, the included angle between two adjacent protrusions 221 is 72°; when the number of the protrusions 221 is 6, the included angle between two adjacent protrusions 221 is 60°; when the number of the protrusions 221 is 8, the included angle between two adjacent protrusions 221 is 45°, and so on. The obtained dust cap 22 can use the protrusions 221 as the skeleton of the entire dust cap 22 body to improve the strength of the dust cap 22. Furthermore, the obtained dust cap 22 has high high-frequency strength, can suppress the splitting vibration generated by the dust cap 22 at high frequencies, and is finally applied to the speaker. The evenly distributed setting of the plurality of protrusions 221 can reduce the distortion of the speaker sound and improve the high-frequency acoustic performance of the speaker.
[0031] Furthermore, the total area of the protrusions 221 accounts for 35%-50% of the total area of the dust cap 22. The range of the area of the protrusions 221 occupying the area of the dust cap 22 needs to be kept within a suitable range, avoiding the area of the protrusions 221 being too small to reduce the structural strengthening effect on the dust cap 22, and also avoiding the area of the protrusions 221 being too large to affect the flexible vibration of the dust cap 22.
[0032] As Figure 1 shown in the figure, in order to simplify the processing technology of the dust cap 22, in some embodiments, the protrusions 221 and the dust cap 22 are integrally formed. The integrally formed design improves the processing efficiency, and the integrally formed protrusions 221 can ensure the connection strength with the dust cap 22, further improving the overall structural strength of the dust cap 22. Of course, it can also be that after the dust cap 22 is formed, the protrusions 221 are formed by stamping on the dust cap 22. The advantage of such a setting is that the number and position of the protrusions 221 can be flexibly set and are not affected by the shaping die, improving the product diversity of the dust cap 22.
[0033] As Figure 2As shown, to enhance the visual atmosphere experience of users. In some embodiments, the surround 1 and the integral diaphragm body 2 are both made of light-transmitting materials. Through the light-transmitting materials, the diaphragm can synchronously change with the light effect of the atmosphere lamp, creating dynamic and variable visual effects, enhancing the aesthetic feeling and sense of technology. It can make the light effect change synchronously with the music rhythm, so that users can obtain visual entertainment experience while enjoying the auditory sense, and enhance the overall entertainment effect. The light-transmitting materials can be, but are not limited to, fiberglass or nano-composite materials, etc., and no specific limitation is made here.
[0034] As Figure 1 shown, specifically, in some embodiments, the body 21 is a rotating surface, and the body 21 gradually narrows along the central axis towards the dust cap 22. The dust cap 22 is a hemispherical structure, and the hemispherical structure protrudes along the central axis towards the surround 1. Through the design of the rotating surface and the gradually narrowing body 21, the sound wave propagation is smoother, the sound wave energy can be concentrated in the central area, enhancing the directivity and propagation efficiency of the sound wave, and improving the clarity and brightness of the sound. Through the design of the hemispherical dust cap 22, the sound wave can be evenly propagated in all directions, forming a more balanced sound field, which helps to enhance the three-dimensional sense and sense of space of the sound, making the sound performance more real and natural.
[0035] Continuing as Figure 1 shown, further, the surround 1 is integrally formed by a first surround edge portion 11, a bending portion 12, and a second surround edge portion 13. The second surround edge portion 13 is connected to the second edge portion of the body 21. The two ends of the bending portion 12 are respectively connected to the first surround edge portion 11 and the second surround edge portion 13. The first surround edge portion 11 and the bending portion 12 are fixed to the speaker frame, thereby stably mounting the diaphragm group on the speaker. When the voice coil of the speaker drives the diaphragm to vibrate, the surround 1 plays a role in connecting and transmitting vibration. The surround 1 allows the diaphragm to move freely during vibration while maintaining the stability of the overall structure. The connection between the second surround edge portion 13 and the second edge portion of the body can be, but is not limited to, glued with glue, and no specific limitation is made here.
[0036] The present utility model further provides a loudspeaker, which includes a voice coil and the diaphragm assembly in any of the above embodiments, and a dust cap 22 is adhesively bonded to the voice coil. By integrally forming the carcass 21 and the dust cap 22, the phenomena of sound wave reflection and scattering as well as unnecessary audio resonance and sound coloring caused by the interfaces and connections of the carcass 21 and the dust cap 22 are reduced. Moreover, since the process of adhesively bonding the dust cap 22 and the carcass 21 with glue during the assembly of the diaphragm is reduced, the overall weight of the diaphragm assembly can be reduced, and the sensitivity of the loudspeaker can be further improved. By providing a plurality of protrusions 221 on the dust cap 22, these protrusions 221 can effectively improve the strength of the dust cap 22, suppress the splitting vibration generated by the dust cap 22 at high frequencies, and greatly increase the ductility of the high-frequency band of the loudspeaker. Therefore, the diaphragm assembly structure effectively improves the performance of the loudspeaker in the high-frequency band, and at the same time significantly improves the consistency and stability of the high-frequency band of the loudspeaker, enabling the loudspeaker to provide users with high-quality sound performance and high-quality auditory enjoyment.
[0037] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.
Claims
1. A cone assembly, comprising a folding ring (1), characterized in that: The cone group also includes: An integrated sound basin body (2), the integrated sound basin body (2) comprising a body (21) and a dust cap (22), the body (21) and the dust cap (22) being integrally formed, the first edge of the body (21) being connected to the dust cap (22), the second edge of the body (21) being away from the dust cap (22) being connected to the folding ring (1); the dust cap (22) being provided with a plurality of protrusions (221) distributed along the central circumference thereof.
2. The cone assembly according to claim 1, characterized in that: Each of the protruding portions (221) extends from the center of the dust cap (22) to the edge of the dust cap (22).
3. The cone assembly according to claim 2, characterized in that: The protrusion (221) is willow-leaf shaped.
4. The cone assembly according to claim 3, characterized in that: The plurality of raised portions (221) are evenly spaced along the central circumference of the dust cap (22).
5. The cone assembly according to claim 4, characterized in that: The number of the protrusions (221) is set to 3, 4, 5, 6 or 8.
6. The cone assembly according to claim 5, characterized in that: The total area of the plurality of protrusions (221) accounts for 35%-50% of the total area of the dust cap (22).
7. The cone assembly according to any one of claims 1 to 6, characterized in that: The raised portion (221) and the dust cap (22) are integrally formed.
8. The cone assembly according to any one of claims 1 to 6, characterized in that: The folding ring (1) and the integrated sound basin body (2) are both made of light-transmitting materials.
9. A loudspeaker comprising a voice coil, characterized in that The loudspeaker further comprises a cone assembly as claimed in any one of claims 1 to 8, wherein the dust cap (22) is bonded to the voice coil.