Drum paper structure, loudspeaker and sound equipment

Abstract

The invention discloses a drum paper structure, a loudspeaker and sound equipment, and relates to the technical field of loudspeakers, the drum paper structure comprises a carcass, the carcass is provided with a long axis and a short axis, the carcass comprises two straight segments and two arc segments, the two straight segments are symmetrically distributed about the long axis, the two arc segments are symmetrically distributed about the short axis, and the two arc segments are symmetrically distributed about the short axis. The two sides of each straight section are connected with the two arc sections respectively, an upper opening is defined by the two straight sections and the two arc sections, and the surface, close to the side wall of the upper opening, of each straight section is arranged to be an arc surface. The loudspeaker comprises the drum paper structure and a folding ring. The sound equipment comprises the loudspeaker.

Description

Technical Field

[0001] The invention relates to the technical field of loudspeakers, and in particular to a drum-paper structure, a loudspeaker and an audio device. Background Art

[0002] With the development of home and professional audio equipment, the market demand for compact and highly sensitive speakers is growing. Runway-shaped speakers are becoming increasingly popular due to their small size and excellent low-frequency response. The drum paper of this type of speaker is usually thinner to ensure sensitivity and response speed. However, this design also brings some challenges: the drum paper carcass is approximately elliptical as a whole, with a long axis and a short axis. The drum paper carcass includes two arc segments and two straight segments. The two straight segments are symmetrically distributed about the long axis, and the two arc segments are symmetrically distributed about the short axis. When the drum paper carcass vibrates, the connection between the arc segment and the straight segment and the middle position of the straight segment are prone to severe deformation, resulting in sound distortion and unstable characteristics. Summary of the invention

[0003] The main purpose of the invention is to provide a drum paper structure, a loudspeaker and an audio device, aiming at reducing the stress concentration when the carcass vibrates.

[0004] To achieve the above-mentioned purpose, the drum paper structure proposed in the present invention includes a carcass, wherein the carcass has a major axis and a minor axis, and the carcass includes two straight segments and two arc segments, the two straight segments are symmetrically distributed about the major axis, and the two arc segments are symmetrically distributed about the minor axis, the two sides of each straight segment are respectively connected to the two arc segments, the two straight segments and the two arc segments enclose an upper opening, and the surface of the side wall of each straight segment close to the upper opening is arranged in an arc surface.

[0005] The present invention also provides a loudspeaker, comprising:

[0006] The drum paper structure described above; and

[0007] A fold ring, wherein the fold ring has a connecting portion, wherein the connecting portion includes two first connecting segments and two second connecting segments, wherein the two first connecting segments are symmetrically distributed about the long axis, and the two second connecting segments are symmetrically distributed about the short axis, wherein each of the first connecting segments is connected to a straight segment, and each of the second connecting segments is connected to an arc segment.

[0008] The present invention also provides an audio device, comprising the above-mentioned loudspeaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] 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.

[0010] Figure 1 A structural schematic diagram of a speaker embodiment of the present invention is provided;

[0011] Figure 2 A cross-sectional view of an embodiment of a loudspeaker is provided for the present invention;

[0012] Figure 3 A top view of an embodiment of a drum paper structure provided by the present invention;

[0013] Figure 4 A top view of an embodiment of a fold ring provided by the present invention.

[0014] Description of Figure Numbers:

[0015] 100. Drum paper structure; 1. Carcass; 11. Straight section; 12. Arc section; 13. Upper opening; 14. Transition section; 15. Folding edge; 16. Lower opening; 17. Raised rib section;

[0016] 200, folded ring; 210, connecting portion; 211, first connecting section; 212, second connecting section.

[0017] 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

[0018] 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.

[0019] 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 in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0020] 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 implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0021] The present invention provides a drum paper structure 100 .

[0022] See also Figures 1 to 4 In one embodiment of the present invention, the drum paper structure 100 includes a carcass 1, the carcass 1 has a major axis and a minor axis, the carcass 1 includes two straight segments 11 and two arc segments 12, the two straight segments 11 are symmetrically distributed about the major axis, the two arc segments 12 are symmetrically distributed about the minor axis, the two sides of each straight segment 11 are respectively connected to the two arc segments 12, the two straight segments 11 and the two arc segments 12 enclose an upper opening 13, and the surface of the side wall of each straight segment 11 close to the upper opening 13 is arranged in an arc surface.

[0023] In the technical solution of the present invention, the surfaces of the side walls of the two straight sections 11 close to the upper opening 13 are arranged in an arc shape, and the arc surface provides a continuous transition area, so that when the carcass 1 vibrates or is subjected to force, the force can be more evenly dispersed to a larger area of ​​the carcass 1, rather than concentrated on a specific point or line; compared with the straight line segment, the stress generated inside the arc surface when subjected to force is more evenly distributed, reducing the possibility of local stress concentration; the arc surface design increases the toughness of the structure, so that the carcass 1 can better absorb and disperse energy when subjected to impact or vibration, thereby reducing the risk of deformation and cracks; because the deformation of the carcass 1 is effectively controlled, the distortion phenomenon of the speaker when playing sound is significantly reduced, which means that the speaker can more accurately reproduce the original audio signal, providing clearer and more Natural sound; uniform stress distribution and reduced deformation not only improve the stability of the speaker, but also help to improve the sound quality. The speaker can better handle the performance at high volume while maintaining the dynamic range and details of the music; by reducing deformation during vibration, the durability of the drum paper structure 100 is improved, which means that the speaker can maintain optimal performance for a longer period of time, reducing the need for repair or replacement due to damage to the carcass 1; this drum paper structure 100 increases the strength of the carcass 1 by setting the surface of the side wall of the straight section 11 close to the upper opening 13 in an arc shape, thereby reducing the vibration deformation of the carcass 1 and the intermodulation distortion of the speaker, thereby achieving the effect of increasing the flatness of the speaker curve and high-frequency extension, and the listening experience is good, the sound is clear, and the product stability is also significantly improved.

[0024] In one embodiment of the present invention, the distance between the two ends of the arc side wall of each straight segment 11 and the arc top is H, where 0.1mm≤H≤10mm. An excessively large H value may cause the connection area between the straight segment 11 and the arc segment 12 to be too sharp, increasing the risk of stress concentration and easily causing local deformation or cracks in the carcass 1 during vibration. An excessively large H value may also cause a decrease in structural strength, making the carcass 1 more likely to deform or be damaged during vibration. An excessively small H value may cause the connection area between the arc segment 12 and the straight segment 11 to be too flat, reducing the vibration effect of the arc surface, thereby weakening the vibration amplitude and sound output of the carcass 1. An excessively small H value may also reduce the durability and reliability of the carcass 1 and shorten the service life of the speaker. Selecting a suitable H value is crucial to ensuring the performance of the carcass 1. The size of H needs to be carefully considered to balance the vibration effect, structural strength and acoustic performance. By optimizing the H value, the sound quality, sensitivity and durability of the speaker can be improved, thereby improving the overall performance and user experience.

[0025] To further enhance the strength of the carcass 1, refer to Figure 3In one embodiment of the present invention, the body 1 further includes four transition sections 14, each of which is connected to a straight section 11 and an arc section 12 on both sides, and the curvatures of the straight section 11, the transition section 14 and the arc section 12 are A1, A2 and A3 respectively, and A1<A2<A3. The four transition sections 14 connect the straight section 11 and the arc section 12 to ensure the continuity and smoothness of the structure. The design of different curvatures helps to more evenly distribute the stress generated during vibration, reduce stress concentration, thereby reducing deformation and improving the stability of the speaker; the curvature of the transition section 14 is between the straight section 11 and the arc section 12, which helps to smooth the vibration mode and reduce the unevenness during vibration. The gradual change of curvature helps to control the vibration characteristics of the body 1, improve the uniformity of the frequency response, and reduce distortion. The existence of the transition section 14 increases the overall strength of the body 1, making it more resistant to deformation caused by vibration.

[0026] To increase the strength of the edge of the carcass 1, refer to Figure 2 In one embodiment of the present invention, a folded edge portion 15 is formed at one end of the carcass 1 close to the upper opening 13 , and the folded edge portion 15 extends in a direction away from the center of the carcass 1 . The folded edge portion 15 is located near the upper opening 13 of the carcass 1 and extends in a direction away from the center of the carcass 1. This design increases the rigidity and strength of the edge of the carcass 1, helps to maintain the shape of the carcass 1 during vibration, and reduces deformation caused by vibration; when the speaker is working, the carcass 1 will vibrate up and down to produce sound. The existence of the folded edge portion 15 makes the edge of the carcass 1 more stable, reduces the bending and twisting of the edge portion during vibration, thereby reducing the overall deformation; the design of the folded edge portion 15 improves the durability of the carcass 1, making it more resistant to wear and damage during long-term use, and extending the service life of the speaker; by reducing the deformation of the carcass 1 during vibration, the folded edge portion 15 helps to maintain the acoustic performance of the carcass 1 and ensure the consistency and accuracy of the sound. Reducing the deformation of the carcass 1 can also reduce intermodulation distortion and provide clearer and more natural sound output.

[0027] In order to ensure the performance and durability of the carcass 1, in one embodiment of the present invention, the angle formed between the folded edge 15 and the carcass 1 is A, wherein 30 degrees ≤ A ≤ 150 degrees. When the angle is too small, the connection area between the folded edge 15 and the carcass 1 becomes sharp, which may cause stress concentration. The sharp angle means that during the vibration process, the material at the connection between the folded edge 15 and the carcass 1 needs to withstand a greater bending force, which may cause material fatigue and damage. In addition, the sharp angle may also cause scattering of sound during propagation, affecting the acoustic performance of the speaker; when the angle is too large, the rigidity of the folded edge 15 may not be sufficient to effectively support the carcass 1, resulting in the folded edge 15 being unable to provide sufficient structural strength during the vibration process and unable to effectively resist the force generated by the vibration, which may cause the carcass 1 to produce greater deformation during vibration, affecting the stability and durability of the speaker. Angles that are too large may also change the vibration mode of the drum paper, resulting in sound distortion or uneven frequency response; the angle A should be selected between 30 and 150 degrees. The angle within this range can provide sufficient structural strength while avoiding stress concentration, ensuring that the carcass 1 can evenly distribute stress during vibration and reduce deformation and distortion.

[0028] In order to ensure the performance and durability of the drum paper, in one embodiment of the present invention, the width of the folded edge 15 is D, where 0.3mm≤D≤5mm. When the length of the folded edge 15 is too small, it may not provide sufficient structural support to resist the force generated during vibration, and cannot effectively disperse the stress generated by vibration, resulting in stress concentration in the edge area, which in turn causes the edge of the carcass 1 to be more easily deformed or damaged during vibration, increasing the risk of rupture or cracking of the drum paper, affecting the durability and reliability of the speaker; when the length of the folded edge 15 is too large, the excessively long folded edge 15 may change the vibration mode of the drum paper, resulting in uneven sound propagation, and the excessively long folded edge 15 may also increase the weight of the drum paper. The increased weight may reduce the overall performance of the speaker, making the speaker sluggish in high-frequency response, resulting in acoustic distortion and thus affecting the sensitivity and response speed of the speaker. The length D of the folded edge 15 is selected between 0.3mm and 5mm. The length within this range can provide sufficient structural support while avoiding excessive weight increase or introducing additional acoustic distortion.

[0029] See also Figure 2In one embodiment of the present invention, the carcass 1 is provided with a lower opening 16 coaxially arranged with the upper opening 13, and the cross-sectional area of ​​the carcass 1 gradually decreases from the end close to the upper opening 13 to the end close to the lower opening 16. The coaxial arrangement of the upper opening 13 and the lower opening 16 helps to maintain the balance of the drum paper during vibration. The cross-sectional area of ​​the carcass 1 gradually decreases from the end close to the upper opening 13 to the end close to the lower opening 16, aiming to optimize the mass distribution and vibration characteristics of the drum paper. By changing the cross-sectional area, the mass distribution of the drum paper can be adjusted so that the vibration is more concentrated in the central area of ​​the drum paper, thereby improving the propagation efficiency and directionality of the sound; the gradually decreasing cross-sectional area may help to change the vibration mode of the drum paper, reduce the vibration of the edge, thereby reducing distortion and improving the sound quality.

[0030] See also Figure 1 In one embodiment of the present invention, the wall surface of the body 1 is provided with a plurality of convex ribs 17 at intervals. The convex ribs 17, as structural reinforcements, can significantly improve the rigidity of the wall surface of the body 1. When vibrated, the convex ribs 17 can reduce the bending and twisting of the wall surface, thereby reducing deformation; the convex ribs 17 help to disperse the stress generated during vibration and avoid stress concentration in a specific area, thereby reducing the risk of rupture and cracking of the body 1; by increasing the durability of the body 1, the drum paper can be more resistant to wear and damage in long-term use, thereby extending the service life of the speaker; the appropriate design of the convex ribs 17 can improve the acoustic performance of the body 1, and provide a clearer and more natural sound output by adjusting the vibration mode and frequency response.

[0031] The present invention also proposes a loudspeaker, which includes a folded ring 200 and a drum paper structure 100. The specific structure of the drum paper structure 100 refers to the above embodiment. Since the present loudspeaker 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. Among them, the folded ring 200 has a connecting portion 210, and the connecting portion 210 includes two first connecting segments 211 and two second connecting segments 212. The two first connecting segments 211 are symmetrically distributed about the long axis, and the two second connecting segments 212 are symmetrically distributed about the short axis. Each of the first connecting segments 211 is connected to a straight segment 11, and each of the second connecting segments 212 is connected to an arc segment 12.

[0032] In the technical solution of the present invention, the folding ring 200 is an important component in the speaker, which connects the drum paper and other parts of the speaker, such as the frame or the box. The design of the folding ring 200 has an important influence on the vibration characteristics and sound output of the speaker; the design of the connecting part 210 enables it to adapt to the shape of the carcass 1, ensuring that the connection between the folding ring 200 and the carcass 1 is more stable and reliable, so as to improve the mechanical stability of the speaker and reduce the risk of deformation and damage during operation; through the carefully designed drum paper structure 100 and the folding ring 200, the acoustic performance of the speaker is optimized, including the uniformity of the frequency response and the quality of the sound. The design of the folding ring 200 and the drum paper structure 100 also improves the mechanical stability of the speaker and reduces the risk of deformation and damage during operation.

[0033] The present invention also provides an audio device, including the speaker described in the above embodiment. The specific structure of the speaker refers to the above embodiment. Since the audio device 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. Among them, the audio device includes but is not limited to an audio device that is wirelessly connected via Bluetooth technology, a long strip of audio equipment, an audio device with intelligent functions, and a television.

[0034] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A drum paper structure, comprising a carcass, the carcass having a long axis and a short axis, the carcass comprising two straight segments and two arc segments, the two straight segments are symmetrically distributed about the long axis, the two arc segments are symmetrically distributed about the short axis, and the two sides of each straight segment are respectively connected to the two arc segments, characterized in that: The two straight segments and the two arc segments enclose an upper opening, and the surface of the side wall of each straight segment close to the upper opening is arranged in an arc surface.

2. The drum paper structure according to claim 1, characterized in that: The distance between the two ends of the arc surface side wall of each straight segment and the arc top is H, wherein 0.1mm≤H≤10mm.

3. The drum paper structure according to claim 1, characterized in that: The carcass also includes four transition sections, and the two sides of each transition section are respectively connected to a straight section and an arc section, and the curvatures of the straight section, the transition section and the arc section are A1, A2 and A3 respectively, and A1<A2<A3.

4. The drum paper structure according to any one of claims 1 to 3, characterized in that: A folded edge portion is formed at one end of the carcass close to the upper opening, and the folded edge portion extends in a direction away from the center of the carcass.

5. The drum paper structure according to claim 4, characterized in that: The angle formed between the folded edge and the carcass is A, wherein 30 degrees ≤ A ≤ 150 degrees.

6. The drum paper structure according to claim 4, characterized in that: The width of the folded edge portion is D, wherein 0.3 mm ≤ D ≤ 5 mm.

7. The drum paper structure according to any one of claims 1 to 3, characterized in that: The carcass is provided with a lower opening coaxially arranged with the upper opening, and the cross-sectional area of ​​the carcass gradually decreases from an end close to the upper opening to an end close to the lower opening.

8. The drum paper structure according to any one of claims 1 to 3, characterized in that: The wall surface of the carcass is provided with a plurality of convex ribs at intervals.

9. A loudspeaker, characterized in that: include: The drum paper structure according to any one of claims 1 to 8; and A fold ring, wherein the fold ring has a connecting portion, wherein the connecting portion includes two first connecting segments and two second connecting segments, wherein the two first connecting segments are symmetrically distributed about the long axis, and the two second connecting segments are symmetrically distributed about the short axis, wherein each of the first connecting segments is connected to a straight segment, and each of the second connecting segments is connected to an arc segment.

10. An audio device, characterized in that: Comprising the speaker as claimed in claim 9.

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