Loudspeaker structure and loudspeaker

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a loudspeaker structure and a loudspeaker. The loudspeaker structure comprises a sound amplification seat and a vibrating diaphragm, the sound amplification seat is internally provided with a sound cavity, and the sound cavity is used for accommodating a moving coil unit; the sound cavity comprises a first cavity wall, the first cavity wall is provided with a profiling part, and the profiling part is provided with a sound inlet group; the vibrating diaphragm comprises an annular folding part, the annular folding part is located in the sound cavity, and the annular folding part is used for being matched with the moving coil unit to vibrate; wherein a containing space is formed in the annular folding part, and the profiling part is contained in the containing space. The loudspeaker structure not only can reduce the energy loss in the internal sound wave transmission process, but also can improve the sound wave transmission efficiency, so that the sound output is more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a loudspeaker technical field, especially a loudspeaker structure and loudspeaker. BACKGROUND

[0002] The loudspeaker in prior art usually includes a sound cavity and a sound amplification channel. The sound cavity and the sound amplification channel are connected through an input sound port. The sound cavity is used for accommodating a moving coil unit and a diaphragm. The diaphragm separates the sound cavity into a front cavity and a rear cavity. The moving coil unit is located in the rear cavity and connected to the diaphragm. The moving coil unit changes its own magnetic field by inputting audio current to drive the diaphragm to vibrate and excite air to generate sound waves. These sound waves enter the sound amplification channel through the input sound port located in the front cavity and then are transmitted to the outside to achieve the sound amplification effect.

[0003] However, in the above structure, the space between the diaphragm and the front cavity is large, which can easily cause the sound waves generated by the diaphragm to be difficult to accurately propagate to the input sound port, affecting the sound amplification effect. SUMMARY

[0004] The technical problem to be solved by the embodiments of the utility model is to provide a loudspeaker structure and a loudspeaker to solve the problem that sound waves are difficult to accurately propagate in a direction in the prior art.

[0005] In a first aspect, the utility model provides a loudspeaker structure, which comprises:

[0006] a sound amplification seat, which has a sound cavity inside, the sound cavity being used for accommodating a moving coil unit; the sound cavity comprising a first cavity wall, the first cavity wall being provided with a profiled part, and a plurality of input sound ports being arranged on the profiled part;

[0007] a diaphragm, the diaphragm comprising a ring-shaped folded part, the ring-shaped folded part being located in the sound cavity and being used for cooperating with the moving coil unit to vibrate; wherein the ring-shaped folded part forms an accommodation space, the profiled part is accommodated in the accommodation space, and the profiled part is shaped similarly to the ring-shaped folded part.

[0008] In an embodiment, the ring-shaped folded part comprises an outer ring and an inner ring, the profiled part comprises a first inclined surface and a second inclined surface, the first inclined surface is connected to the second inclined surface, the first inclined surface is arranged around the outer ring, and the second inclined surface is arranged around the inner ring; the input sound ports comprise first input sound holes and second input sound holes, the first input sound holes are arranged at the first inclined surface, and the second input sound holes are arranged at the second inclined surface.

[0009] In an embodiment, the input sound ports comprise two first input sound holes and two second input sound holes, the two second input sound holes are symmetrically arranged, and the two first input sound holes are symmetrically arranged on both sides of the two second input sound holes.

[0010] In an embodiment, the sound amplification base further comprises a sound outlet arranged opposite to the sound inlet groups, the sound inlet groups are arranged around the sound outlet, the sound amplification base has a sound amplification channel inside, the sound amplification channel comprises a reflection section, a plurality of first sound guide sections and a second sound guide section, the first sound guide sections and the second sound guide section are connected to the sound outlet through the reflection section, and each first sound guide section is connected to a first sound inlet hole and each second sound guide section is connected to a second sound inlet hole.

[0011] In an embodiment, the size of the first sound inlet hole is larger than the size of the second sound inlet hole.

[0012] In an embodiment, the sound inlet groups are symmetrically arranged on both sides of the reflection section, the first sound guide section connected to the first sound inlet hole of one sound inlet group extends towards the second sound inlet hole of the symmetrically arranged sound inlet group, and the second sound guide section connected to the second sound inlet hole of one sound inlet group extends towards the first sound inlet hole of the symmetrically arranged sound inlet group.

[0013] In an embodiment, the diaphragm comprises an outer ring portion and an inner ring portion, the annular folding portion is located between the outer ring portion and the inner ring portion, the outer ring portion is arranged on the sound amplification base, and the inner ring portion is located in the sound cavity and is in close contact with the first cavity wall.

[0014] In an embodiment, a convex column is arranged at the first cavity wall, the convex column penetrates the inner ring, the loudspeaker structure further comprises a sleeve ring, the sleeve ring is sleeved on the convex column, and the inner ring portion is clamped between the sleeve ring and the first cavity wall.

[0015] In an embodiment, the sound amplification base comprises a sound guide plate, a compression ring and a base arranged in sequence, a plurality of sound inlets are arranged on one side of the sound guide plate facing the base, the sound guide plate, the compression ring and the base jointly enclose the sound cavity, and the outer ring portion is clamped between the sound guide plate and the compression ring.

[0016] In a second aspect, the utility model embodiment further provides a sound amplifier.

[0017] Compared with the prior art, the loudspeaker structure provided by the utility model embodiment has the advantages that the loudspeaker structure can not only reduce the energy loss in the internal sound wave transmission process, but also improve the efficiency of sound wave transmission, so that the sound output is more stable.

[0018] Specifically, the setting of the profiling part can preliminarily reduce the volume of the sound cavity, and since the annular folded part is the main vibration sound emitting part, the profiling part is accommodated in the accommodation space of the annular folded part, so that the sound inlet group is closer to the vibration sound emitting part, and when the moving coil unit drives the annular folded part to vibrate, due to the small gap between the sound inlet group and the annular folded part, on the one hand, the transmission distance of the sound wave to the sound inlet group is shorter; on the other hand, when the annular folded part moves relative to the profiling part, the annular folded part can also compress the gap between each other, so as to compress the movement of the sound wave to the sound inlet group, so that the sound wave enters the sound inlet group more accurately and centrally. As can be seen, the loudspeaker structure not only can reduce the energy loss in the internal sound wave transmission process, but also can improve the overall sound transmission efficiency, the sound amplification effect is stronger, and the performance is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific implementation of the present application will be further described in detail below in combination with the drawings and examples, and the drawings are as follows:

[0020] Figure 1 is a cross-sectional internal schematic view of the loudspeaker structure provided by the embodiment of the present application;

[0021] Figure 2 is Figure 1 is a local enlarged schematic view of position A in the above figure;

[0022] Figure 3 is a disassembled schematic view of the loudspeaker structure provided by the embodiment of the present application;

[0023] Figure 4 is a disassembled schematic view of the diaphragm and the sound guide plate provided by the embodiment of the present application;

[0024] Figure 5 is a disassembled schematic view of the diaphragm, the sound guide plate and the compression ring provided by the embodiment of the present application;

[0025] Figure 6 is one of the internal schematic views of the sound amplification channel and the sound inlet group of the loudspeaker structure provided by the embodiment of the present application;

[0026] Figure 7 is Figure 6 is a local enlarged schematic view of position B in the above figure;

[0027] Figure 8 is the second internal schematic view of the sound amplification channel and the sound inlet group of the loudspeaker structure provided by the embodiment of the present application.

[0028] The reference signs in the figures are as follows:

[0029] 1000, loudspeaker structure;

[0030] 10. Amplifier base; 11. Sound cavity; 111. First cavity wall; 112. Front cavity; 113. Rear cavity; 114. Protruding pillar; 12. Contouring part; 121. First inclined surface; 122. Second inclined surface; 13. Sound inlet assembly; 131. First sound inlet hole; 132. Second sound inlet hole; 14. Sound outlet; 15. Amplification channel; 151. Reflection section; 152. First sound guide section; 153. Second sound guide section; 16. Sound guide plate; 17. Pressure ring; 18. Base;

[0031] 20. Diaphragm; 21. Annular fold; 211. Accommodating space; 212. Outer ring; 213. Inner ring; 22. Outer ring portion; 23. Inner ring portion;

[0032] 30. Ring. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] This utility model embodiment provides a speaker structure 1000, such as... Figures 1 to 4 As shown, the speaker structure 1000 includes a speaker base 10 and a diaphragm 20. The speaker base 10 has a sound cavity 11 inside, which is used to house the dynamic coil unit. The sound cavity 11 includes a first cavity wall 111, and the first cavity wall 111 is provided with a contoured portion 12. The contoured portion 12 is provided with a sound inlet assembly 13. The diaphragm 20 includes an annular folded portion 21, which is located inside the sound cavity 11 and is used to cooperate with the dynamic coil unit to vibrate. The annular folded portion 21 forms an accommodating space 211, and the contoured portion 12 is accommodated in the accommodating space 211, and the shape of the contoured portion 12 is similar to that of the annular folded portion 21. This application can solve the problem of poor sound wave transmission effect inside the speaker structure 1000 in the prior art. This speaker structure 1000 can not only reduce energy loss during the internal sound wave transmission process, but also improve the efficiency of sound wave transmission, making the sound output more stable.

[0035] Specifically, the setting of the profiling portion 12 can preliminarily reduce the volume of the sound cavity 11, and since the annular folded portion 21 is the main vibration sound emitting part of the diaphragm 20, the profiling portion 12 is accommodated in the accommodation space 211 of the annular folded portion 21, so that the sound inlet group 13 is closer to the vibration sound emitting part. When the annular folded portion 21 is driven to vibrate by the moving coil unit, due to the small gap between the sound inlet group 13 and the annular folded portion 21, after the sound wave is generated, on the one hand, the transmission distance of the sound wave to the sound inlet group 13 is shorter; on the other hand, when the annular folded portion 21 moves relative to the profiling portion 12, the annular folded portion 21 can also compress the gap between each other, thereby compressing the movement of the sound wave to the sound inlet group 13, so that the sound wave enters the sound inlet group 13 more accurately and centrally. As can be seen, the loudspeaker structure 1000 not only can reduce the energy loss in the internal sound wave transmission process, but also can improve the efficiency of the overall sound transmission, the sound amplification effect is stronger, and the performance is more stable.

[0036] In an embodiment, the annular folded portion 21 includes an outer ring 212 and an inner ring 213, the profiling portion 12 includes a first inclined surface 121 and a second inclined surface 122, the first inclined surface 121 is connected to the second inclined surface 122, the first inclined surface 121 is arranged around the outer ring 212, and the second inclined surface 122 is arranged around the inner ring 213; the sound inlet group 13 includes a first sound inlet hole 131 and a second sound inlet hole 132, the first sound inlet hole 131 is arranged at the first inclined surface 121, and the second sound inlet hole 132 is arranged at the second inclined surface 122. By such arrangement, since the annular folded portion 21 vibrates to generate sound waves through the outer ring 212 and the inner ring 213 respectively, the first inclined surface 121 is arranged opposite to the outer ring 212, the first sound inlet hole 131 is arranged at the first inclined surface 121, and the sound waves generated by the outer ring 212 during movement can be better guided and pushed into the first sound inlet hole 131; similarly, the second inclined surface 122 is arranged opposite to the inner ring 213, the second sound inlet hole 132 is arranged at the second inclined surface 122, and the sound waves generated by the inner ring 213 during movement can also be guided and pushed into the second sound inlet hole 132, further improving the accuracy of sound wave transmission and ensuring that each sound wave can accurately enter the sound inlet group 13 to improve the clarity of sound output, achieve more realistic sound restoration, and avoid sound distortion.

[0037] If the setting interval of the first sound inlet hole 131 and the second sound inlet hole 132 is too large, during the amplitude process of the annular folded part 21, the pressure distribution is not uniform when the space is compressed, which leads to the imbalance of the annular folded part 21 amplitude, affecting the stable transmission of sound waves. To solve this technical problem, in an embodiment, the first sound inlet hole 131 and the second sound inlet hole 132 in each group of sound inlet hole group 13 are arranged adjacent to each other. In this way, when the outer ring 212 and the inner ring 213 synchronously perform amplitude, during the amplitude process of the adjacent part of the outer ring 212 and the inner ring 213 of the annular folded part 21, the compressed air can be discharged through the adjacent first sound inlet hole 131 and the second sound inlet hole 132, ensuring uniform pressure distribution, preventing the annular folded part 21 from being out of balance, helping to maintain the vibration balance of the annular folded part 21, and further improving the sound wave transmission efficiency and the accuracy of the output.

[0038] With reference to Figure 4 In an embodiment, the sound inlet hole group 13 includes two first sound inlet holes 131 and two second sound inlet holes 132, the two second sound inlet holes 132 are symmetrically arranged, and the two first sound inlet holes 131 are symmetrically arranged on both sides of the two second sound inlet holes 132. In this way, on the one hand, by increasing the number of first sound inlet holes 131 and second sound inlet holes 132, the transmission channel of sound waves can be increased, the strength of sound output can be improved, and the propagation effect of sound can be effectively improved; on the other hand, by symmetrically arranging the first sound inlet hole 131 and the second sound inlet hole 132, the uniformity of sound transmission can be improved, and the sound output can be more stable.

[0039] With reference to Figure 1 , Figure 4 , Figure 6 and Figure 7In an embodiment, the sound amplification seat 10 further comprises an outlet 14 opposite to the plurality of inlet groups 13, and the plurality of inlet groups 13 are arranged around the outlet 14. The sound amplification seat 10 has a sound amplification channel 15 inside, which comprises a reflection section 151, a plurality of first sound guide sections 152 and a plurality of second sound guide sections 153. The plurality of first sound guide sections 152 and the plurality of second sound guide sections 153 are both connected to the outlet 14 through the reflection section 151, and each first sound guide section 152 is connected to a first inlet hole 131, and each second sound guide section 153 is connected to a second inlet hole 132. In this way, each sound wave enters the corresponding first sound guide section 152 or the second sound guide section 153 through the plurality of inlet groups 13, and then enters the reflection section 151 for sound wave reflection to achieve sound amplification effect. The arrangement of the first sound guide sections 152 and the second sound guide sections 153 enables the sound waves to be transmitted in independent channels, and the plurality of first sound guide sections 152 and the plurality of second sound guide sections 153 effectively isolate each sound wave before entering the reflection section 151, avoiding mutual interference between the sound waves during transmission, ensuring that the sound waves do not converge after entering the reflection section 151, but continue to maintain their respective propagation paths, avoiding cross interference between the sound waves, maintaining uniform propagation of the sound waves, and enhancing sound amplification effect.

[0040] Due to the positional relationship between the outer ring 212 and the inner ring 213, the length of the first sound guide section 152 is greater than the length of the second sound guide section 153, which means that the sound wave transmits in the first sound guide section 152 for a longer distance. To reduce the energy loss of the sound wave due to the longer transmission distance, in an embodiment, the size of the first inlet hole 131 is greater than the size of the second inlet hole 132. In this way, by increasing the size of the first inlet hole 131, it is more conducive for the sound wave to enter the first inlet hole 131, and the sound waves in the first sound guide section 152 and the second sound guide section 153 can maintain consistent intensity when entering the reflection section 151, improving the stability of sound output.

[0041] Referring to Figure 8In an embodiment, the several sound inlet groups 13 are symmetrically arranged in pairs on both sides of the reflection section 151. The first sound guide section 152, which is in communication with the first sound inlet hole 131 of one of the sound inlet groups 13, extends towards the second sound inlet hole 132 of the symmetrically arranged other sound inlet group 13. The second sound guide section 153, which is in communication with the second sound inlet hole 132 of one of the sound inlet groups 13, extends towards the first sound inlet hole 131 of the symmetrically arranged other sound inlet group 13. In this way, due to the positional relationship between the outer ring 212 and the inner ring 213, the length of the first sound guide section 152 is greater than the length of the second sound guide section 153. The time taken for the sound wave to sequentially pass through the first sound inlet hole 131 to the sound outlet 14 is greater than the time taken for the sound wave to pass through the second sound inlet hole 132 to the sound outlet 14. By arranging the first sound inlet hole 131 of each sound inlet group 13 to correspond to the second sound inlet hole 132 of the other sound inlet group 13, the two sound waves can reach the sound outlet 14 in sequence, avoiding mutual interference and cancellation between the sound waves, and ensuring the stability and clarity of the sound output.

[0042] Referring to Figures 3 to 5 In an embodiment, the diaphragm 20 includes an outer ring portion 22 and an inner ring portion 23, and the annular folded portion 21 is located between the outer ring portion 22 and the inner ring portion 23. The outer ring portion 22 is mounted on the sound amplification seat 10, and the inner ring portion 23 is located in the sound cavity 11 and is connected in close contact with the first cavity wall 111 to divide the sound cavity 11 into the front cavity 112 and the rear cavity 113. In this way, since the inner ring portion 23 is in close contact with the first cavity wall 111, the volume of the front cavity 112 can be further compressed, so that the sound wave can be better directed for transmission.

[0043] Referring to Figures 3 to 5 In an embodiment, the first cavity wall 111 is provided with a protruding column 114, the protruding column 114 is arranged through the inner ring portion 23, and the loudspeaker structure 1000 further includes a sleeve ring 30, the sleeve ring 30 is sleeved on the protruding column 114, and the inner ring portion 23 is clamped between the sleeve ring 30 and the first cavity wall 111. In this way, the protruding column 114 can limit the inner ring portion 23 in the horizontal plane direction, which is conducive to the movement of the annular folded portion 21; and the sleeve ring 30 can limit the inner ring portion 23 in the vertical plane direction, so that the inner ring portion 23 remains in close contact with the first cavity wall 111, thereby improving the connection stability between the inner ring portion 23 and the first cavity wall 111.

[0044] Referring to Figures 3 to 5In an embodiment, the sound amplifier base 10 comprises the sound guide plate 16, the pressing ring 17 and the base 18 arranged in sequence, a plurality of sound inlet openings are arranged on the side of the sound guide plate 16 facing the base 18, the sound guide plate 16, the pressing ring 17 and the base 18 jointly enclose the sound cavity 11, and the outer ring part 22 is clamped between the sound guide plate 16 and the pressing ring 17. In this way, the outer ring part 22 of the diaphragm 20 is fixed, the connection stability of the diaphragm 20 is improved, the diaphragm 20 is more convenient to install, and because the outer ring part 22 and the inner ring part 23 of the diaphragm 20 are both limited and fixed in the sound amplifier base 10, the annular folded part 21 can be more balanced when moving, and the annular folded part 21 moves more stably.

[0045] The utility model embodiment further provides a loudspeaker. The loudspeaker comprises the loudspeaker structure 1000 of each embodiment. The loudspeaker can not only enhance the intensity and clarity of sound, but also ensure the stability and efficiency of sound during propagation.

[0046] It should be understood that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than limit them. For those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced equivalently. All these modifications and replacements should belong to the protection scope of the claims of the utility model.

Claims

1. A horn structure, characterized in that, include: A loudspeaker base has an internal acoustic cavity for housing a dynamic driver unit; the acoustic cavity includes a first cavity wall with a contoured portion and a plurality of inlet ports on the contoured portion. The diaphragm includes an annular folded portion located within the acoustic cavity. The annular folded portion is used to cooperate with the dynamic coil unit to vibrate. The annular folded portion forms an accommodating space, and the contoured portion is accommodated in the accommodating space, and the contoured portion has a similar shape to the annular folded portion.

2. The horn structure according to claim 1, characterized in that, The annular folding portion includes an outer ring and an inner ring; the contoured portion includes a first inclined surface and a second inclined surface, the first inclined surface is connected to the second inclined surface, the first inclined surface surrounds the outer ring, and the second inclined surface surrounds the inner ring; the sound inlet assembly includes a first sound inlet hole and a second sound inlet hole, the first sound inlet hole is located at the first inclined surface, and the second sound inlet hole is located at the second inclined surface.

3. The horn structure according to claim 2, characterized in that, The sound inlet assembly includes two first sound inlets and two second sound inlets, with the two second sound inlets symmetrically arranged and the two first sound inlets symmetrically arranged on both sides of the two second sound inlets.

4. The horn structure according to claim 2 or 3, characterized in that, The amplifier base also includes an outlet disposed opposite to the plurality of inlet groups. The plurality of inlet groups are arranged around the outlet. The amplifier base has an amplification channel inside. The amplification channel includes a reflection section, a plurality of first sound guide sections and a second sound guide section. The plurality of first sound guide sections and second sound guide sections are all connected to the outlet through the reflection section. Each first sound guide section is connected to a first inlet hole, and each second sound guide section is connected to a second inlet hole.

5. The horn structure according to claim 4, characterized in that, The size of the first sound inlet is larger than the size of the second sound inlet.

6. The horn structure according to claim 5, characterized in that, Several of the aforementioned sound inlet groups are symmetrically arranged on both sides of the reflection section. The first sound guide segment, which is connected to the first sound inlet hole of one of the sound inlet groups, extends toward the second sound inlet hole of the other symmetrical sound inlet group. The second sound guide segment, which is connected to the second sound inlet hole of one of the sound inlet groups, extends toward the first sound inlet hole of the other symmetrical sound inlet group.

7. The horn structure according to claim 1, characterized in that, The diaphragm includes an outer ring portion and an inner ring portion, the annular folded portion is located between the outer ring portion and the inner ring portion, the outer ring portion is mounted on the amplifier base, and the inner ring portion is located in the sound cavity and fits against the first cavity wall.

8. The horn structure according to claim 7, characterized in that, The first cavity wall is provided with a protruding post, which passes through the inner ring portion. The horn structure also includes a collar, which is sleeved on the protruding post, and the inner ring portion is sandwiched between the collar and the first cavity wall.

9. The horn structure according to claim 8, characterized in that, The amplifier base includes a sound guide plate, a pressure ring, and a base arranged in sequence. Several sound inlets are arranged on the side of the sound guide plate facing the base. The sound guide plate, the pressure ring, and the base together enclose the sound cavity. The outer ring is sandwiched between the sound guide plate and the pressure ring.

10. A loudspeaker, characterized in that, It includes the horn structure described in any one of claims 1-9.

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