Open type earphone capable of preventing sound leakage
By using ear-apple face, acoustic focus lens and sound guide structures in open headphones, the problems of sound leakage and traffic information reception are solved, efficient sound transmission to the external auditory canal is achieved, and the anti-release effect of the headphones is improved and use safety.
Patent Information
- Application Number
- CN202420395046.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-02-28
AI Technical Summary
After wearing the open earphones, the distance between the sound outlet and the external auditory canal causes sound leakage, causing environmental interference and privacy leakage risks. At the same time, it covers the external auditory canal to reduce sound leakage, which will hinder the reception of traffic information, and poses a safety risk.
An open-type headphone for anti-leakage sound is designed, using an ear-side, an acoustic focus lens and a sound guide tube structure. By setting the acoustic focus lens in the installation slot of the headphone, the sound output end of the sound guide tube and the acoustic focus lens surface Align the sound derived from the sound outlet is reflected to the external auditory canal, forming a sound-enclosed cavity, reducing sound leakage and improving sound conduction efficiency.
Effectively reduce sound leakage, avoid privacy leakage, ensure that users can receive external traffic information in a timely manner, improve safety, avoid coverage of external auditory canals, and maintain the opening of traffic information reception channels.
Smart Images
Figure CN222301976U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of earphones, and in particular to an anti-sound leakage open-type earphone. Background Art
[0002] With people's preference for music, headphones, as portable music players, have gradually been used in various occasions. When people do outdoor sports, in order to receive surrounding traffic information in a timely manner while enjoying music, people usually wear open headphones. However, because there is a certain distance between the sound outlet and the external auditory canal after the open headphones are worn, the sound diffusion is omnidirectional after the sound is emitted from the sound outlet. There is not only sound propagating into the ear canal, but also sound propagating outside the ear canal. It is easy for sound to leak out, which will not only produce environmental interference sound, but also pose a risk of privacy leakage. Some manufacturers have conducted research and development on this issue.
[0003] For example, Chinese patent document CN215682610U discloses an open-type earphone, comprising an earphone shell with a receiving cavity, a speaker provided in the receiving cavity, and a sound outlet portion connected to the speaker provided on the earphone shell; a fixing device for wearing and fixing on a human body; when the open-type earphone is worn, the sound outlet portion is configured to at least partially cover the user's external auditory canal.
[0004] However, the above-mentioned open-type earphone design has the following problems:
[0005] Although the above-mentioned open-type earphones reduce the chance of sound leakage by shortening the distance between the sound outlet and the external auditory canal by making the sound outlet cover part of the user's external auditory canal, when the sound outlet covers part of the user's external auditory canal, the channel for the external auditory canal to receive surrounding traffic information becomes narrower, which hinders the reception of traffic information and makes it difficult for users to respond to traffic information in a timely manner, posing a safety risk. Utility Model Content
[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an open-type earphone with good sound leakage prevention effect and high safety in use.
[0007] The purpose of this disclosure is achieved through the following technical solutions:
[0008] An anti-sound leakage open earphone comprises an earphone body and an ear handle, wherein the earphone body is connected to the ear handle, and the ear handle is used to be sleeved on the back of a human ear; the earphone body comprises an ear-contacting surface, and the ear-contacting surface is used to fit the human ear;
[0009] The anti-sound leakage open earphone also includes a soundproof cover, a sound focusing lens and a sound guide tube;
[0010] The ear-contacting surface is provided with a sound-producing opening and a mounting groove, the mounting groove is used to face the external auditory canal of the human ear, and the sound-focusing lens is arranged in the mounting groove; the sound-isolating cover sealing cover is arranged at the sound-producing opening, and together with the ear-contacting surface forms a sound-enclosed cavity;
[0011] The sound guide tube is arranged on the sound insulation cover, the sound input end of the sound guide tube is connected to the sound sealing cavity, the sound output end of the sound guide tube extends to the slot of the mounting slot, and a sound outlet is provided at the end of the sound output end of the sound guide tube, the sound outlet is opposite to the surface of the sound focusing lens, and the sound focusing lens is used to reflect the sound output from the sound outlet to the external auditory canal of the human ear.
[0012] In one embodiment, the sound focusing lens is in the shape of a spherical crown, and the surface of the sound focusing lens is an arc-shaped concave surface.
[0013] In one of the embodiments, the sound outlet is located at the focus of the sound focusing lens and faces the center of the arc-shaped concave surface.
[0014] In one of the embodiments, a line connecting the sound outlet and the center position of the arc-shaped concave surface is used to align with the external auditory canal of a human ear.
[0015] In one embodiment, the sound focusing lens is a hard-boundary lens, and the arc-shaped concave surface is a smooth surface.
[0016] In one embodiment, the radius of the sphere corresponding to the arc-shaped concave surface ranges from 4 mm to 5 mm.
[0017] In one of the embodiments, the earphone body has a built-in speaker, the edge of the speaker's mouth is adapted to the sound outlet; the speaker's mouth faces the sound insulation cover.
[0018] In one embodiment, the sound outlet is circular, and the radius of the sound outlet is 0.2mm-0.4mm.
[0019] In one embodiment, the surface of the ear handle and the ear-contacting surface are both provided with a skin-friendly layer.
[0020] In one of the embodiments, it is characterized in that the mounting slot is a through slot, the sound focusing lens is detachably inserted into the mounting slot, and the bottom of the sound focusing lens passes through the mounting slot and protrudes from a side of the earphone body that is away from the ear-contacting surface.
[0021] Compared with the prior art, the present invention has at least the following advantages:
[0022] The above-mentioned open-type earphones to prevent sound leakage have a sound outlet and a mounting groove on the ear-contact surface, and a sound focusing lens is arranged in the mounting groove. By putting the ear handle on the back of the human ear, the ear-contact surface can fit the human ear, so that the sound focusing lens can be opposite to the external auditory canal of the human ear. By setting the sound insulation cover on the sound outlet, the ear-contact surface and the sound insulation cover together form a sound-enclosed cavity, and the sound emitted from the sound outlet is enclosed in the sound-enclosed cavity through the sound insulation cover, which can effectively reduce sound leakage and avoid privacy leakage. At the same time, because the sound input end of the sound guide tube is connected to the sound sealing cavity, and the sound output end of the sound guide tube extends to the notch of the mounting groove, the sound in the sound sealing cavity can be transmitted to the sound focusing lens through the sound guide tube. Since the sound outlet at the end of the sound output end of the sound guide tube is opposite to the surface of the sound focusing lens, most of the sound output from the sound outlet can be guided to the surface of the sound focusing lens, which can not only reduce the omnidirectional diffusion of sound to form environmental interference sound, but also after the sound is gathered by the sound focusing lens, it can be reflected to the external auditory canal of the human ear in a more and more directed manner, so that the sound can not only be efficiently transmitted to the external auditory canal of the human ear, but also reduce the leakage of sound. Compared with the open earphones in the prior art, the above-mentioned anti-sound leakage open earphones will not cover the external auditory canal of the human ear. After wearing, the user can still receive traffic information in the external environment in a timely manner, and the safety of use is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 A schematic diagram of the structure of an open-type earphone with sound leakage prevention according to an embodiment of the present disclosure;
[0025] Figure 2 for Figure 1 The cross-sectional structure diagram of the anti-sound leakage open-type earphone in the wearing state is shown;
[0026] Figure 3 for Figure 1 A partial cross-sectional view of an anti-sound leakage open-back earphone is shown.
[0027] Figure numerals: 10, anti-sound leakage open-type earphones; 100, earphone body; 110, ear-fitting surface; 1110, sound outlet; 1120, mounting groove; 120, speaker; 1210, speaker mouth; 200, ear handle; 300, sound insulation cover; 400, sound focusing lens; 410, arc-shaped concave surface; 500, sound guide tube; 510, sound outlet; 600, sound sealing cavity; 20, human ear; 2010, external auditory canal; 2020, back of the ear. DETAILED DESCRIPTION
[0028] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0031] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:
[0032] like Figure 1 and Figure 2As shown, an anti-sound leakage open earphone 10 of an embodiment includes an earphone body 100, an ear handle 200, a soundproof cover 300, a sound focusing lens 400 and a sound guide tube 500. The earphone body 100 is connected to the ear handle 200, and the ear handle 200 is used to be mounted on the back of the ear 2020 of the human ear 20; the earphone body 100 includes an ear-contacting surface 110, and the ear-contacting surface 110 is used to fit the human ear 20; the ear-contacting surface 110 is provided with a sound-producing port 1110 and a mounting groove 1120, and the mounting groove 1120 is used to be opposite to the external auditory canal 2010 of the human ear 20, and the sound focusing lens 400 is arranged at the mounting groove 1120. The sound insulation cover 300 is sealed on the sound outlet 1110 and together with the ear-contacting surface 110 forms a sound-sealed cavity 600. The sound guide tube 500 is arranged on the sound insulation cover 300, the sound input end of the sound guide tube 500 is connected to the sound-sealed cavity 600, the sound output end of the sound guide tube 500 extends to the notch of the mounting groove 1120, and the sound output end of the sound guide tube 500 is provided with a sound outlet 510, which is opposite to the surface of the sound focusing lens 400. The sound focusing lens 400 is used to reflect the sound output from the sound outlet 510 to the external auditory canal 2010 of the human ear 20.
[0033] It can be understood that because the ear-contacting surface 110 is provided with a pronunciation port 1110 and a mounting groove 1120, a sound focusing lens 400 is arranged in the mounting groove 1120, and by putting the ear handle 200 on the back of the ear 2020 of the human ear 20, the ear-contacting surface 110 can be fitted to the human ear 20, so that the sound focusing lens 400 can be opposite to the external auditory canal 2010 of the human ear 20, and by covering the sound insulation cover 300 on the pronunciation port 1110, the ear-contacting surface 110 and the sound insulation cover 300 together form a sound-sealed cavity 600, and the sound emitted from the pronunciation port 1110 is sealed in the sound-sealed cavity 600 by the sound insulation cover 300, which can effectively reduce sound leakage and avoid privacy leakage. At the same time, because the sound input end of the sound guide tube 500 is connected to the sound sealing cavity 600, and the sound output end of the sound guide tube 500 extends to the slot of the mounting slot 1120, the sound in the sound sealing cavity 600 can be transmitted to the sound focusing lens 400 through the sound guide tube 500. Since the sound outlet 510 at the end of the sound output end of the sound guide tube 500 is opposite to the surface of the sound focusing lens 400, most of the sound outputted from the sound outlet 510 can be guided to the surface of the sound focusing lens 400, which can not only reduce the omnidirectional diffusion of the sound to form environmental interference sound, but also after the sound is gathered by the sound focusing lens 400, it can be reflected to the external auditory canal 2010 of the human ear 20 in a more and more directionally manner. Ultimately, the sound can not only be efficiently transmitted to the external auditory canal 2010 of the human ear 20, but also the leakage of sound can be reduced. Compared with the open-type earphones in the prior art, the above-mentioned anti-sound leakage open-type earphones 10 do not cover the external auditory canal 2010 of the human ear 20. After wearing them, the user can still receive traffic information in the external environment in a timely manner, and the use is safer.
[0034] Combination Figure 2 As shown, in this embodiment, the sound focusing lens 400 is in a spherical crown shape, and the surface of the sound focusing lens 400 is an arc-shaped concave surface 410. It can be understood that because the surface of the sound focusing lens 400 is an arc-shaped concave surface 410, the arc-shaped concave surface 410 has a larger surface area, which can reflect more sound to the external auditory canal 2010, avoid the call sound from being transmitted outside the external auditory canal 2010, improve the call privacy requirements, and reduce environmental sound pollution.
[0035] Specifically, the sound outlet 510 is located at the focus of the sound focusing lens 400 and faces the center of the arc-shaped concave surface 410. It can be understood that by setting the sound outlet 510 at the focus of the sound focusing lens 400 and making the sound outlet 510 face the center of the arc-shaped concave surface 410, the sound derived from the sound outlet 510 can act evenly on the arc-shaped concave surface 410, and the sound is reflected by the arc-shaped concave surface 410 to form parallel reflected sound waves, which can reflect the sound of the full frequency band, so that the sound received by the human ear 20 is clearer and more fidelity.
[0036] Furthermore, the line connecting the sound outlet 510 and the center of the arc-shaped concave surface 410 is used to align with the external auditory canal 2010 of the human ear 20. It can be understood that when the user wears the above-mentioned anti-sound leakage open earphone 10, the sound outlet 510, the center of the arc-shaped concave surface 410 and the external auditory canal 2010 of the human ear 20 will be located on the same straight line, and the sound derived from the sound outlet 510 can be more quickly reflected to the external auditory canal 2010 of the human ear 20 through the arc-shaped concave surface 410, thereby improving the efficiency of sound conduction and reflection, which not only enables the human ear 20 to respond to the call content in real time, but also allows better enjoyment of music.
[0037] In one embodiment, the sound focusing lens 400 is a hard-boundary lens, and the arc-shaped concave surface 410 is a smooth surface. It can be understood that by setting the sound focusing lens 400 as a hard-boundary lens, the hard-boundary lens and the smooth surface have a higher sound reflection coefficient and a larger acoustic impedance, which can more fully reflect the sound output from the sound outlet 510 to the external auditory canal 2010 of the human ear 20, and also better reduce sound leakage. Specifically, the hard-boundary lens can be a glass lens, a resin lens or a plastic lens, which is of course not limited here, and those skilled in the art can also replace it according to the need for sound reflection.
[0038] Combination Figure 3As shown, in one embodiment, the radius R1 of the ball opposite to the arc-shaped concave surface 410 is in the range of 4mm-5mm. It can be understood that because the radius R1 of the ball opposite to the arc-shaped concave surface 410 is in the range of 4mm-5mm, it can avoid the arc-shaped concave surface 410 being too large to cause sound leakage, and at the same time, it can avoid the arc-shaped concave surface 410 being too small to make it difficult to fully reflect the sound output from the sound outlet 510. Specifically, the radius R1 of the ball opposite to the arc-shaped concave surface 410 is 4mm, 4.5mm or 5mm, of course, there is no limitation here, and those skilled in the art can also make other choices based on the anti-leakage effect and reflection effect of the sound.
[0039] Combination Figure 1 As shown, in one embodiment, the earphone body 100 has a built-in speaker 120, and the edge of the bell mouth 1210 of the speaker 120 is adapted to the sound-producing port 1110; the bell mouth 1210 of the speaker 120 faces the soundproof cover 300. It can be understood that by making the edge of the bell mouth 1210 of the speaker 120 adapted to the sound-producing port 1110, the sound emitted by the bell mouth 1210 of the speaker 120 can be emitted from the sound-producing port 1110. Because the bell mouth 1210 of the speaker 120 faces the soundproof cover 300, the soundproof cover 300 reflects the sound emitted by the bell mouth 1210 of the speaker 120, changes the direction of the sound, and prevents the sound from leaking out. At the same time, the sound is sealed in the sound sealing cavity 600, and can be fully exported through the sound guide tube 500, reducing sound loss.
[0040] Combination Figure 1 As shown, in one embodiment, the mounting groove 1120 is a through groove, and the sound focusing lens 400 is detachably inserted into the mounting groove 1120, and the bottom of the sound focusing lens 400 passes through the mounting groove 1120 and protrudes from the side of the earphone body 100 away from the ear-contacting surface 110. It can be understood that because the mounting groove 1120 is a through groove, when the sound focusing lens 400 is detachably inserted into the mounting groove 1120, the bottom of the sound focusing lens 400 can pass through the mounting groove 1120 and protrude from the side of the earphone body 100 away from the ear-contacting surface 110. When the sound focusing lens 400 needs to be replaced, the bottom of the sound focusing lens 400 can be pushed from the side of the earphone body 100 away from the ear-contacting surface 110, so that the sound focusing lens 400 can be quickly and conveniently removed from the mounting groove 1120, which is more convenient for users to use.
[0041] Combination Figure 3As shown, in one embodiment, the sound outlet 510 is circular, and the radius R2 of the sound outlet 510 is 0.2mm-0.4mm. It can be understood that by setting the sound outlet 510 to be circular and setting the radius R2 of the sound outlet 510 to be in the range of 0.2mm-0.4mm, it is possible to avoid the sound outlet 510 from leaking out due to excessive sound, and at the same time avoid the problem of low efficiency of the sound outlet 510 due to the sound outlet 510 being too small. Specifically, the radius R2 of the sound outlet 510 is 0.2mm, 0.3mm or 0.4mm, of course, there is no limitation here, and those skilled in the art can also make other choices based on the sound conduction and sound leakage effects.
[0042] In one embodiment, the surface of the ear handle 200 and the ear contact surface 110 are both provided with a skin-friendly layer. It can be understood that the skin-friendly layer has a soft and smooth property, which can reduce the friction between the human ear 20 and the ear contact surface 110 and the ear handle 200 during exercise, and reduce the wear on the epidermis of the human ear 20. Specifically, the skin-friendly layer can use a liquid silicone layer or others, and the liquid silicone layer has excellent resilience, is not easy to deform, and has a longer service life.
[0043] Compared with the prior art, the present invention has at least the following advantages:
[0044] The above-mentioned open-type earphone 10 to prevent sound leakage has a sound outlet 1110 and a mounting groove 1120 on the ear surface 110, and a sound focusing lens 400 is arranged in the mounting groove 1120. By putting the ear handle 200 on the back of the ear 2020 of the human ear 20, the ear surface 110 can be fitted to the human ear 20, so that the sound focusing lens 400 can be opposite to the external auditory canal 2010 of the human ear 20. By covering the sound insulation cover 300 on the sound outlet 1110, the ear surface 110 and the sound insulation cover 300 together form a sound-sealed cavity 600. The sound emitted from the sound outlet 1110 is sealed in the sound-sealed cavity 600 by the sound insulation cover 300, which can effectively reduce sound leakage and avoid privacy leakage. At the same time, because the sound input end of the sound guide tube 500 is connected to the sound sealing cavity 600, and the sound output end of the sound guide tube 500 extends to the slot of the mounting slot 1120, the sound in the sound sealing cavity 600 can be transmitted to the sound focusing lens 400 through the sound guide tube 500. Since the sound outlet 510 at the end of the sound output end of the sound guide tube 500 is opposite to the surface of the sound focusing lens 400, most of the sound outputted from the sound outlet 510 can be guided to the surface of the sound focusing lens 400, which can not only reduce the omnidirectional diffusion of the sound to form environmental interference sound, but also after the sound is gathered by the sound focusing lens 400, it can be reflected to the external auditory canal 2010 of the human ear 20 in a more and more directionally manner. Ultimately, the sound can not only be efficiently transmitted to the external auditory canal 2010 of the human ear 20, but also the leakage of sound can be reduced. Compared with the open-type earphones in the prior art, the above-mentioned anti-sound leakage open-type earphones 10 do not cover the external auditory canal 2010 of the human ear 20. After wearing them, the user can still receive traffic information in the external environment in a timely manner, and the use is safer.
[0045] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.
Claims
1. An anti-sound leakage open earphone, comprising an earphone body and an ear handle, wherein the earphone body is connected to the ear handle, and the ear handle is used to be mounted on the back of a human ear; the earphone body comprises an ear-contacting surface, and the ear-contacting surface is used to fit the human ear; It is characterized in that The anti-sound leakage open earphone also includes a soundproof cover, a sound focusing lens and a sound guide tube; The ear-contacting surface is provided with a sound-producing opening and a mounting groove, the mounting groove is used to face the external auditory canal of the human ear, and the sound-focusing lens is arranged in the mounting groove; the sound-isolating cover sealing cover is arranged at the sound-producing opening, and together with the ear-contacting surface forms a sound-enclosed cavity; The sound guide tube is arranged on the sound insulation cover, the sound input end of the sound guide tube is connected to the sound sealing cavity, the sound output end of the sound guide tube extends to the slot of the mounting slot, and a sound outlet is provided at the end of the sound output end of the sound guide tube, the sound outlet is opposite to the surface of the sound focusing lens, and the sound focusing lens is used to reflect the sound output from the sound outlet to the external auditory canal of the human ear.
2. The anti-sound leakage open earphone according to claim 1, characterized in that: The sound focusing lens is in a spherical crown shape, and the surface of the sound focusing lens is an arc-shaped concave surface.
3. The anti-sound leakage open earphone according to claim 2, characterized in that: The sound outlet is located at the focus of the sound focusing lens and faces the center of the arc-shaped concave surface.
4. The anti-sound leakage open earphone according to claim 3, characterized in that: The line connecting the sound outlet and the center position of the arc-shaped concave surface is used to align with the external auditory canal of the human ear.
5. The anti-sound leakage open earphone according to claim 2, characterized in that: The sound focusing lens is a hard-boundary lens, and the arc-shaped concave surface is a smooth surface.
6. The anti-sound leakage open earphone according to claim 2, characterized in that: The radius of the sphere opposite to the arc-shaped concave surface ranges from 4 mm to 5 mm.
7. The anti-sound leakage open earphone according to claim 1, characterized in that: The earphone body has a built-in speaker, the edge of the speaker's mouth is adapted to the sound-generating port; the speaker's mouth faces the soundproof cover.
8. The anti-sound leakage open earphone according to claim 1, characterized in that: The sound outlet is circular, and the radius of the sound outlet is 0.2mm-0.4mm.
9. The anti-sound leakage open earphone according to claim 1, characterized in that: The surface of the ear handle and the ear-contacting surface are both provided with a skin-friendly layer.
10. The anti-sound leakage open earphone according to claim 1, characterized in that: The mounting slot is a through slot, the sound focusing lens is detachably inserted into the mounting slot, and the bottom of the sound focusing lens passes through the mounting slot and protrudes from a side of the earphone body that is away from the ear-contacting surface.