Sound guide structure of audio equipment

Abstract

The utility model relates to the technical field of audio equipment, in particular to a sound guide structure of audio equipment, which comprises a sound outlet nozzle and driving units, the sound outlet nozzle is connected with a medium-frequency conduit, a high-frequency conduit and a low-frequency conduit, and one end of the medium-frequency conduit, one end of the high-frequency conduit and one end of the low-frequency conduit far away from the sound outlet nozzle are respectively connected with one driving unit; an intermediate-frequency channel, a high-frequency channel and a low-frequency channel are formed in the sound outlet nozzle; the front end of the high-frequency channel is provided with a conical groove, and the front end of the high-frequency channel forms a horn-shaped sound outlet port through the conical groove. A sound outlet hole of the driving unit is formed in the side face, right opposite to the vibration plate, of the driving unit; according to the utility model, the horn-shaped structure formed by the conical groove improves the conduction efficiency of high-frequency signals. The sound outlet hole of the driving unit is formed in the side face, right opposite to the vibration plate, of the driving unit, so that sound waves generated by the vibration plate directly enter the high-frequency guide pipe from the sound outlet hole without turning, and therefore loss of the high-frequency sound waves is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of audio equipment, and specifically relates to a sound guiding structure of an audio equipment. Background Art

[0002] Headphones and audio equipment are very common in modern life, and their versatility and portability make them an indispensable companion in daily life. The sound conduction structure in audio equipment such as headphones is a key factor in ensuring sound quality and user experience.

[0003] The current sound conduction structure of headphones usually includes a driving unit, and the driving unit is connected with a sound outlet nozzle to realize sound conduction.

[0004] However, the existing sound conduction structure still has the following deficiencies:

[0005] First, in the design of general headphones, usually there is only one driving unit, and the sound outlet nozzle is usually designed as a round tube, which is only used for sound conduction and does not have the effect of optimizing the frequency response. In the design of multi-unit headphones, since the high, middle, and low frequency bands are respectively taken on by different driving units, and the high, middle, and low frequency bands have different physical characteristics. However, in the design of multi-unit headphones, the three groups of sound tubes are usually the same section of flexible tube, and there is no optimized design for the high, middle, and low frequency bands. Especially the flexible tube for high frequency transmission is relatively tortuous and soft, while high frequency sound waves travel in a straight line and the longer the path, the more attenuation, and the weak ability to overcome obstacles, and there will also be attenuation when encountering a bend, thus affecting the sound quality.

[0006] Second, the sound outlet holes of the existing driving unit are generally arranged on the end face, and the axial direction of the sound outlet holes is parallel to the internal vibrating plate, resulting in that the sound needs to "turn many times" to come out from the sound outlet holes, further affecting the high frequency sound waves. Content of the Utility Model

[0007] The purpose of the utility model is to provide a sound guiding structure of an audio equipment to solve the problems raised in the above background art.

[0008] The purpose of the utility model can be realized by the following technical solutions:

[0009] A sound guiding structure of an audio equipment includes a sound outlet nozzle and a driving unit. The sound outlet nozzle is connected with an intermediate frequency duct, a high frequency duct, and a low frequency duct. One driving unit is connected to each of the ends of the intermediate frequency duct, the high frequency duct, and the low frequency duct that are far away from the sound outlet nozzle.

[0010] An intermediate frequency channel, a high frequency channel, and a low frequency channel are opened in the sound outlet nozzle. The tail end of the intermediate frequency channel is connected with the intermediate frequency duct, the tail end of the high frequency channel is connected with the high frequency duct, and the tail end of the low frequency channel is connected with the low frequency duct.

[0011] A conical groove is provided at the front end of the high-frequency channel, and the front end of the high-frequency channel forms a horn-shaped sound outlet through the conical groove;

[0012] The sound outlet hole of the driving unit is arranged on the side of the driving unit facing the vibrating plate.

[0013] Furthermore, the high-frequency duct is made of a high-rigidity metal material.

[0014] Furthermore, the diameter of the high-frequency duct is larger than that of the medium-frequency duct, and the diameter of the medium-frequency duct is larger than that of the low-frequency duct.

[0015] Furthermore, the high-frequency duct has a straight pipe structure.

[0016] Advantages of the present utility model:

[0017] 1. In the present utility model, the horn-shaped structure formed by the conical groove improves the conduction efficiency of high-frequency signals, enabling sound to be transmitted more concentratedly into the external auditory canal, and improving the spatial sense and three-dimensional sense of the audio.

[0018] 2. In the present utility model, by arranging the sound outlet hole of the driving unit on the side of the driving unit facing the vibrating plate, the sound wave generated by the vibrating plate does not need to turn, and directly enters the high-frequency duct from the sound outlet hole, thereby reducing the loss of high-frequency sound waves.

[0019] 3. By changing the medium-frequency duct, high-frequency duct, and low-frequency duct to high-rigidity metals (such as stainless steel), the sound absorption loss during sound conduction can be reduced, and the clarity and fineness of the sound can be maintained.

[0020] 4. By designing ducts with different diameters (the medium-frequency duct, high-frequency duct, and low-frequency duct respectively adopt different sizes), precise transmission and optimization of multi-band signals are achieved, and the overall sound quality performance is improved.

[0021] 5. Through the straight pipe design of the high-frequency duct, the influence of path bending on high-frequency sound waves can be further reduced, thereby further improving the output sound quality.

[0022] 6. For general multi-unit earphones, because the high-frequency attenuation is fast, multiple groups of high-frequency units are required to cooperate, otherwise the designed sound pressure level cannot be achieved, resulting in an increase in cost caused by high frequencies; in the present utility model, the designed sound pressure level is achieved through an optimized single driving unit and high-frequency sound duct design, reducing the manufacturing cost of high-frequency units, and providing a new solution for efficient and high-fidelity sound conduction. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0024] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0025] Figure 2 is a schematic structural diagram of the interior of the sound outlet nozzle of the present invention;

[0026] Figure 3 is a schematic structural diagram of the position where the sound outlet holes of the driving unit are arranged in the present invention;

[0027] Among them, the reference numerals are as follows:

[0028] 1 - sound outlet nozzle, 2 - intermediate frequency duct, 3 - driving unit, 4 - high frequency duct, 7 - low frequency duct, 8 - low frequency channel, 9 - high frequency channel, 10 - conical groove, 11 - intermediate frequency channel, 12 - sound outlet hole, 13 - vibrating plate. Specific embodiments

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] Please refer to Figures 1 to 3 , in the embodiment of the present invention, an audio device sound guiding structure includes a sound outlet nozzle 1 and a driving unit 3. The sound outlet nozzle 1 is connected to an intermediate frequency duct 2, a high frequency duct 4, and a low frequency duct 7. One end of the intermediate frequency duct 2, the high frequency duct 4, and the low frequency duct 7 away from the sound outlet nozzle 1 is connected to a driving unit 3;

[0032] The sound outlet nozzle 1 is provided with an intermediate frequency channel 11, a high frequency channel 9, and a low frequency channel 8. The tail end of the intermediate frequency channel 11 is connected to the intermediate frequency duct 2, the tail end of the high frequency channel 9 is connected to the high frequency duct 4, and the tail end of the low frequency channel 8 is connected to the low frequency duct 7;

[0033] The front end of the high frequency channel 9 is provided with a conical groove 10, and the front end of the high frequency channel 9 forms a horn-shaped sound outlet port through the conical groove 10;

[0034] The sound outlet hole 12 of the driving unit 3 is arranged on the side of the driving unit 3 facing the vibrating plate 13.

[0035] In the present utility model during sound guiding:

[0036] The driving unit 3 receives the electrical signal from the sound source device, excites the vibrating plate 13 to vibrate, and generates sound waves of corresponding frequencies; the medium-frequency sound waves, high-frequency sound waves, and low-frequency sound waves respectively pass through the medium-frequency conduit 2, high-frequency conduit 4, and low-frequency conduit 7 to the medium-frequency channel 11, high-frequency channel 9, and low-frequency channel 8 in the sound outlet nozzle 1, thereby completing the conduction of sound.

[0037] In the present utility model, the horn-shaped structure formed by the conical groove 10 improves the conduction efficiency of high-frequency signals, enabling sound to be transmitted more concentratedly into the external auditory canal and improving the spatial sense and three-dimensional sense of the audio.

[0038] By arranging the sound outlet hole 12 of the driving unit 3 on the side of the driving unit 3 facing the vibrating plate 13, the sound waves generated by the vibrating plate 13 do not need to turn and directly enter the high-frequency conduit 4 from the sound outlet hole 12, thereby reducing the loss of high-frequency sound waves.

[0039] Embodiment 2:

[0040] Based on Embodiment 1, the high-frequency conduit 4 is made of a high-rigidity metal material; by changing the material of the high-frequency conduit 4 to a high-rigidity metal (such as stainless steel), the sound absorption loss of high-frequency sound waves during conduction can be reduced, and the clarity and fineness of the sound can be maintained.

[0041] Embodiment 3:

[0042] Based on Embodiment 2, the diameter of the high-frequency conduit 4 is larger than the diameter of the medium-frequency conduit 2, and the diameter of the medium-frequency conduit 2 is larger than the diameter of the low-frequency conduit 7.

[0043] By designing conduits of different diameters (the medium-frequency conduit 2, high-frequency conduit 4, and low-frequency conduit 7 respectively adopt different sizes), precise transmission and optimization of multi-band signals can be achieved, and the overall sound quality performance can be improved.

[0044] Embodiment 4:

[0045] Based on Embodiment 3, the high-frequency conduit 4 has a straight tube structure.

[0046] Through the straight tube design of the high-frequency conduit 4, the influence of path bending on high-frequency sound waves can be further reduced, thereby further improving the output sound quality.

[0047] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. An audio device sound guiding structure, comprising a sound outlet nozzle (1) and a driving unit (3), characterized in that, The sound outlet nozzle (1) is connected to an intermediate frequency duct (2), a high frequency duct (4) and a low frequency duct (7), and one end of the intermediate frequency duct (2), the high frequency duct (4) and the low frequency duct (7) away from the sound outlet nozzle (1) is connected to a driving unit (3); An intermediate frequency channel (11), a high frequency channel (9) and a low frequency channel (8) are provided in the sound outlet nozzle (1). The tail end of the intermediate frequency channel (11) is connected to the intermediate frequency duct (2), the tail end of the high frequency channel (9) is connected to the high frequency duct (4), and the tail end of the low frequency channel (8) is connected to the low frequency duct (7); A conical groove (10) is provided at the front end of the high frequency channel (9), and the front end of the high frequency channel (9) forms a horn-shaped sound outlet port through the conical groove (10); The sound outlet hole (12) of the driving unit (3) is provided on the side surface of the driving unit (3) facing the vibration plate (13).

2. The sound guiding structure of an audio device according to claim 1, wherein The high frequency duct (4) is made of a high-rigidity metal material.

3. The sound guiding structure of an audio device according to claim 2, characterized in that, The diameter of the high frequency duct (4) is larger than the diameter of the intermediate frequency duct (2), and the diameter of the intermediate frequency duct (2) is larger than the diameter of the low frequency duct (7).

4. The sound guiding structure of an audio device according to claim 3, characterized in that The high frequency duct (4) has a straight pipe structure.

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