Earphone structure with enhanced tone quality

Abstract

The utility model belongs to the technical field of earphones, and particularly relates to a sound quality enhancing earphone structure which comprises an earphone body and an ear hook connected with the earphone body. The earphone body comprises an external earphone shell; a mounting cavity is formed in the earphone shell, a sound outlet hole communicated with the mounting cavity is formed in the earphone shell, the position of the sound outlet hole is aligned with the position of an ear canal when the earphone is worn, a sound production unit is arranged in the mounting cavity, the sound production unit comprises a moving coil loudspeaker and a sound guide tube component connected with the moving coil loudspeaker, and a sound outlet hole communicated with the front sound cavity is formed in the earphone shell; the sound guide tube component comprises a sound guide channel. And the sound outlet hole faces the external auditory canal of the human body, so that the medium-high frequency directivity is strong, the loudness is large, and the effect of enhancing the medium-high frequency is achieved. Meanwhile, the sound guide tube part is arranged, the sound transmission direction can be changed through a sound guide channel, the peak resonant frequency of a harmonic peak of air guide sound in a middle-high frequency band or a high frequency band can be weakened conveniently, and the effect of middle and low frequencies can be effectively enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of headphone technology, and in particular relates to a headphone structure for enhancing sound quality. Background Technology

[0002] With the development of information technology, the emergence of various electronic devices has brought a lot of excitement to people's lives. Headphones, especially Bluetooth headphones, have become an indispensable accessory for personal multimedia products, and users are gradually putting forward higher requirements for the sound quality of headphones.

[0003] Chinese Patent No. CN218734860U discloses an open-back earphone, including a pair of earphones connected by a connecting cable. One end of each pair of earphones is connected to a bone sensor. Each earphone is formed by a shell and an inner shell that are snapped together. A connecting cylinder is provided on the inner side of one end of the inner shell, and a connecting pin is provided on the inner side of one end of the shell that can be inserted into the connecting cylinder. Each bone sensor is formed by an outer cover and an inner cover that are snapped together. A connecting groove is provided on one end of the outer cover and the inner cover, and the connecting groove is fitted onto the outside of the connecting cylinder.

[0004] The aforementioned patented headphones feature a separate design for the bone conduction amplifier and the headphones, connected by a connecting tube inside the headphones. This allows for a better fit to the ear during wear, and the angle of the bone conduction amplifier can be adjusted according to ear shape for a more comfortable, secure, and safe fit. However, unlike most existing headphones, these lack a sound enhancement structure, resulting in a lack of separation between high, mid, and low frequencies. This leads to muddy sound quality and a poor user experience, particularly with weak mid and low frequencies. Utility Model Content

[0005] The purpose of this utility model is to provide a sound quality enhancement headphone structure, which aims to solve the technical problem in the prior art where the headphone does not have a sound quality enhancement structure, so the mid, high and low frequencies cannot be separated, the sound quality of the product is muddy, the user experience is poor, and the effect of the mid and low frequencies is particularly poor.

[0006] To achieve the above objectives, this utility model provides a sound quality enhancement headphone structure, including a headphone body and an ear hook connected to the headphone body; the headphone body includes an outer headphone shell; the headphone shell has a mounting cavity, and the headphone shell is provided with a sound outlet hole communicating with the mounting cavity, the position of the sound outlet hole being aligned with the position of the ear canal when the headphone is worn; the mounting cavity is provided with a sound-generating unit, the sound-generating unit including a dynamic driver and a sound guide tube component of the dynamic driver, the dynamic driver and the headphone shell forming a front sound cavity, the dynamic driver and the sound guide tube component forming a rear sound cavity, and the headphone shell is provided with a sound outlet hole communicating with the front sound cavity;

[0007] The sound guide pipe component comprises a sound guide channel; one end of the sound guide channel is provided with a first opening, and the other end is provided with a second opening; the earphone shell is provided with an opening hole; the opening hole is communicated with the first opening; and the second opening is communicated with the mounting cavity; and the sound guide channel is further provided with a third opening communicated with the rear sound cavity.

[0008] Optionally, the sound outlet is provided with a sound outlet pipe; one end of the sound outlet pipe is communicated with the outside through the sound outlet.

[0009] Optionally, the other end of the sound outlet pipe is arranged close to the second opening.

[0010] Optionally, the cross section of the sound guide channel is in a "7" shape structure.

[0011] Optionally, the third opening is arranged away from one end of the first opening.

[0012] Optionally, the sound guide pipe component is further provided with a pressure relief opening; and the pressure relief opening is communicated with the rear sound cavity.

[0013] Optionally, the opening hole is communicated with the pressure relief opening; and the pressure relief opening and the first opening are arranged left and right or up and down.

[0014] Optionally, the first opening and the pressure relief opening are in the same shape; and the first opening and the pressure relief opening are any one of a waist-shaped hole, an oval shape, a circular shape and a rectangular shape.

[0015] Optionally, the moving coil loudspeaker is provided with at least one pressure relief channel; one end of the pressure relief channel is communicated with the inside of the moving coil loudspeaker; one end of the pressure relief channel is communicated with the rear sound cavity; and the pressure relief channel is arranged close to the pressure relief opening.

[0016] Optionally, the mounting cavity is further provided with a control circuit board inside; and the ear hook is further provided with a battery inside; and the control circuit board is electrically connected with the moving coil loudspeaker and the battery respectively.

[0017] Compared with the prior art, the above one or more technical solutions in the sound quality enhancement earphone structure provided by the embodiment of the utility model have at least one of the following technical effects:

[0018] When the headphones are worn, the sound outlet faces the external auditory canal. The sound generated by the dynamic driver is guided through the outlet and into the canal via a second opening. Because it faces the external auditory canal, the mid-to-high frequency response is strong and loud, thus enhancing the mid-to-high frequencies. Simultaneously, a sound guide tube is incorporated, which alters the direction of sound propagation. Utilizing the strong mid-to-high frequency directivity, it effectively weakens the peak resonant frequency of the air-guided sound in the mid-to-high frequency range or high frequency range, thus enhancing the mid-to-low frequencies and resulting in a smoother frequency response curve. The sound outlet and sound guide tube also separate the low and mid-to-high frequencies, improving the listening experience and preventing muddiness in the sound quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0023] Figure 4 This is a structural schematic diagram of the present invention from another angle.

[0024] Figure 5 This is an exploded view of part of the structure of this utility model.

[0025] The following are the labeling elements in the figure:

[0026] 100. Earpiece body; 110. Earphone shell; 120. Mounting cavity; 130. Sound outlet; 140. Opening; 150. Sound tube; 160. Control circuit board;

[0027] 210. Dynamic horn; 220. Sound tube assembly; 221. Sound channel; 222. First opening; 223. Second opening; 224. Third opening; 225. Pressure relief port; 226. Pressure relief channel; 230. Front sound chamber; 240. Rear sound chamber; 250. Sound outlet;

[0028] 300. Ear hooks. Detailed Implementation

[0029] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0030] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the embodiments of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first", "second" are only used for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0033] In one embodiment of the present application, according to Figures 1-5As shown in the figure, the sound quality enhancement earphone structure comprises an earphone body 100 and an ear hook 300 connected with the earphone body 100; the earphone body 100 comprises an external earphone shell 110; the earphone shell 110 is internally provided with a mounting cavity 120, the earphone shell 110 is provided with a sound outlet hole 130 communicating with the mounting cavity 120, the position of the sound outlet hole 130 is aligned with the position of the ear canal of the human ear when the earphone is worn, the mounting cavity 120 is provided with a sound generating unit, the sound generating unit comprises a moving coil loudspeaker 210 and a sound guide pipe component 220 connected with the moving coil loudspeaker 210, the moving coil loudspeaker 210 and the sound guide pipe component 220 form a front sound cavity 230 and a rear sound cavity 240, and the earphone shell 110 is provided with a sound outlet hole 250 communicating with the front sound cavity 230.

[0034] The sound guide pipe component 220 comprises a sound guide channel 221; one end of the sound guide channel 221 is provided with a first opening 222, the other end is provided with a second opening 223, the earphone shell 110 is provided with an opening hole 140, the opening hole 140 communicates with the first opening 222, and the second opening 223 communicates with the mounting cavity 120; the sound guide channel 221 is further provided with a third opening 224 communicating with the rear sound cavity 240.

[0035] Specifically, when the earphone is worn, the sound outlet hole 130 faces the external ear canal of the human body, and the sound generated by the moving coil loudspeaker 210 can be guided to the external ear canal through the second opening 223 and the sound outlet hole 130, because the position of the external ear canal of the human body is directly opposite, the directivity of the medium and high frequencies is strong, the loudness is large, and the effect of enhancing the medium and high frequencies is achieved. Meanwhile, the sound guide pipe component 220 is arranged, the sound propagation direction can be changed through the sound guide channel 221, the characteristics of strong directivity of medium and high frequencies are utilized, the peak resonance frequency of the resonance peak of the air conduction sound in the medium and high frequency band or the high frequency band is weakened, the effect of enhancing the low frequency is achieved, the frequency response curve is smoother, the low frequency and the medium and high frequency are separated through the arrangement of the sound outlet hole 130 and the sound guide pipe component 220, the sound listening effect is better, and the sound quality is not blurred.

[0036] Further, the sound outlet hole 130, the sound outlet hole 250 and the opening hole 140 are arranged to be multi-hole sound outlets, the medium, high and low frequencies can be separated, the directivity and diffusivity of the sound are optimized, and the sound quality is improved.

[0037] In another embodiment of the utility model, according to Figures 3-5 As shown in the figure, the sound outlet hole 130 is provided with a sound outlet pipe 150, one end of the sound outlet pipe 150 penetrates the sound outlet hole 130 and communicates with the outside. The other end of the sound outlet pipe 150 is arranged close to the second opening 223.

[0038] Specifically, the sound produced by the moving coil speaker 210 is conducted to the sound outlet pipe 150 through the second opening 223, and then to the position of the outer ear canal of the human ear outside. The other end of the sound outlet pipe 150 is close to the second opening 223, so that the sound conducted from the second opening 223 can enter the sound outlet pipe 150 and then be conducted to the human ear outside.

[0039] In another embodiment of the present application, according to Figure 3 and 4 , the cross section of the sound guide channel 221 is in the shape of "7". The third opening 224 is arranged away from one end of the first opening 222. Specifically, the directivity of the middle and high frequencies is strong, and when it is offset by a certain angle, the attenuation is serious. The "7" shaped sound guide channel 221 is arranged to weaken the peak resonance frequency of the resonance peak of the air conduction sound in the middle and high frequency band or high frequency band. The third opening 224 is arranged away from one end of the first opening 222, and the distance is far, so the attenuation effect is better.

[0040] In another embodiment of the present application, according to Figures 3-5 , the sound guide pipe part 220 is further provided with a pressure relief port 225, and the pressure relief port 225 communicates with the rear sound cavity 240. The opening 140 can communicate with the pressure relief port 225, and the pressure relief port 225 is arranged left and right or up and down with the first opening 222. The shape of the first opening 222 and the pressure relief port 225 is the same, and the first opening 222 and the pressure relief port 225 are any one of a waist-shaped hole, an oval, a circle and a rectangle. Specifically, the pressure relief port 225 and the first opening 222 can be located at the same position or can be arranged separately. When they are arranged at the same position, the earphone shell 110 is more beautiful and convenient for processing and production. The shape of the first opening 222 and the pressure relief port 225 can be various, and any shape that can realize the function can be arranged.

[0041] In another embodiment of the present application, according to Figure 5 , the moving coil speaker 210 is provided with at least one pressure relief channel 226, one end of which communicates with the inside of the moving coil speaker 210 and the other end of which communicates with the rear sound cavity 240, and the pressure relief channel 226 is arranged close to the pressure relief port 225. The diaphragm of the moving coil speaker 210 vibrates and the pressure is large, so the pressure relief channel 226 is arranged to reduce the pressure, so that the diaphragm can float more and the loudness is higher. At the same time, the peak resonance frequency of the resonance peak of the high frequency band can be eliminated, and the sound quality can be improved.

[0042] In another embodiment of the present application, according to Figure 3 and 4 , the mounting cavity 120 is further provided with a control circuit board 160 inside, and the ear hook 300 is further provided with a battery inside; the control circuit board 160 is electrically connected with the moving coil speaker 210 and the battery respectively.

[0043] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and cannot be deemed as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, the architecture form can be flexible and changeable without departing from the concept of the utility model, and a series of products can be derived. Only a few simple deductions or replacements should be deemed as belonging to the patent protection range determined by the submitted claims of the utility model.

Claims

1. A sound quality enhancing headphone structure, characterized by, The earphone comprises an earphone body and an ear hook connected to the earphone body; the earphone body comprises an external earphone shell; the earphone shell has an installation cavity therein; the earphone shell is provided with a sound outlet hole communicating with the installation cavity, the sound outlet hole is positioned to align with the ear canal of the human ear when the earphone is worn, the installation cavity is provided with a sound generating unit, the sound generating unit comprises a moving coil loudspeaker and a sound guide pipe component connected to the moving coil loudspeaker, the moving coil loudspeaker and the sound guide pipe component form a front sound cavity and a rear sound cavity, and the earphone shell is provided with a sound outlet hole communicating with the front sound cavity. The sound guide pipe component comprises a sound guide channel; one end of the sound guide channel is provided with a first opening, the other end is provided with a second opening, the earphone shell is provided with an opening hole, the opening hole communicates with the first opening, and the second opening communicates with the installation cavity; the sound guide channel is further provided with a third opening communicating with the rear sound cavity.

2. The sound quality enhancing headphone structure according to claim 1, wherein, The sound outlet hole is provided with a sound outlet pipe, one end of the sound outlet pipe penetrates the sound outlet hole to communicate with the outside.

3. The sound quality enhancing headphone structure according to claim 2, wherein, The other end of the sound outlet pipe is arranged close to the second opening.

4. The sound quality enhancing headphone structure of claim 1, wherein The cross section of the sound guide channel is in a "7" shape structure.

5. The sound quality enhancing headphone structure according to claim 3, wherein, The third opening is arranged away from one end of the first opening.

6. The sound quality enhancing headphone structure of claim 1, wherein, The sound guide pipe component is further provided with a pressure relief opening, and the pressure relief opening communicates with the rear sound cavity.

7. The sound quality enhancing headphone structure according to claim 6, wherein The opening hole can communicate with the pressure relief opening, and the pressure relief opening and the first opening are arranged left and right or up and down.

8. The sound quality enhancing headphone structure of claim 6, wherein, The first opening and the pressure relief opening have the same shape, and the first opening and the pressure relief opening are any one of a waist-shaped hole, an oval shape, a circular shape and a rectangular shape.

9. The sound quality enhancing headphone structure of claim 6, wherein, The moving coil loudspeaker is provided with at least one pressure relief channel, one end of the pressure relief channel communicates with the inside of the moving coil loudspeaker, and the other end communicates with the rear sound cavity; the pressure relief channel is arranged close to the pressure relief opening.

10. The sound quality enhancing headphone structure according to any one of claims 1-9, wherein, The installation cavity is further provided with a control circuit board, and the ear hook is further provided with a battery; the control circuit board is electrically connected with the moving coil loudspeaker and the battery respectively.

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