CN115550783B

CN115550783B - Open earphone

Info

Publication number: CN115550783B
Application number: CN202211212241.3A
Authority: CN
Inventors: 焦博康; 曾鸿; 黄代杨
Original assignee: Dongguan Liesheng Electronic Co Ltd
Current assignee: Dongguan Liesheng Electronic Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-10-31
Anticipated expiration: 2042-09-30
Also published as: WO2024066557A1; CN115550783A

Abstract

The invention discloses an open earphone, comprising: ear-hanging portion and core portion, ear-hanging portion includes: the ear hanging part is in a shape corresponding to the shape from the auricle to the auricle tail in the auricle of the human body; the ear hook part is bent and extended backwards from a connecting end connected with the core part to form a bending part corresponding to the groove shape of the back surface of the auricle in the auricle of the human body, and a gap for clamping the upper part of the auricle in the auricle of the human body is formed between the bending part and the core part; the machine core part is also provided with a rear sound hole, the sound producing hole and the rear sound hole are respectively positioned at the front side and the rear side of the sound producing unit in the machine core part, and at least one group of connecting lines of the corresponding sound producing hole and the rear sound hole point to the auditory canal. The invention aims at the open earphone adopting the ear hanging structure, and the model of the ear hanging part corresponds to the model from the auricle to the auricle tail in the auricle of the human body, so that the earphone is more stable and comfortable to wear when worn by a user.

Description

Open earphone

Technical field:

the invention relates to the technical field of earphone products, in particular to an open earphone adopting an ear-hanging structure.

The background technology is as follows:

the open earphone is different from the in-ear earphone, and the sound producing hole of the open earphone is not like an earplug earphone, and the open earphone needs to be plugged into the auditory canal, but is positioned outside the auditory canal, and the sound producing hole points to the auditory canal. When the open earphone is in use, not only can the sound of the earphone be heard, but also the external environment sound can be heard. The open earphone is especially suitable for users to use outdoors because the open earphone can simultaneously hear external environment sounds when in use.

For ease of wearing, open headphones typically employ an ear-hook structure, which typically comprises: the earphone is hung on the human ear through the ear hanging part, and the machine core part is attached to the surface of the human ear. The human ear comprises three parts of an outer ear, a middle ear and an inner ear, wherein the auditory receptor and the bit sense receptor are positioned in the inner ear, and the outer ear comprises two parts of an auricle and an external auditory canal. As shown in fig. 1 and 2, which are schematic views of an auricle of a human body, the auricle 3 is typically inclined outwardly with respect to the side of the head and forms an included angle, wherein the included angle is about 25-35 °. The outermost part of auricle 3 is auricle 31, and auricle 31 is distributed along the periphery of auditory canal 32, and curves from auricle foot 311 to auricle tail 312. A groove 33 is formed in the back of the auricle 3.

The ear-hanging earphone mainly depends on an ear-hanging part to be hung on an auricle, and in order to adapt to the modeling of the auricle of a human body, the ear-hanging part is usually designed in a curved modeling by the modeling of the auricle. When the ear-hanging part is hung on the auricle 3, the inner side surface of the core part is abutted against the outer surface of the auricle, and the earphone is fixed on the auricle by the clamping force formed between the ear-hanging part and the core part.

However, because the shape and the size of the earphone ear hook are fixed, different users have different ear sizes due to different physical conditions, and the ear hook is too big, too loose and unstable to wear or the ear hook is too small to wear for part of people, so that the users can be clamped to feel uncomfortable. In order to overcome this problem, the present inventors have proposed the following means by performing comfort tests on a large number of users, constantly correcting various parameters.

The invention comprises the following steps:

the invention aims to overcome the defects of the prior art and provide an open earphone which accords with an ergonomic ear-hanging structure.

In order to solve the technical problems, the invention adopts the following technical scheme: an open earphone, comprising: an ear-hanging part with a built-in battery unit and a core part with a built-in sounding unit, wherein the ear-hanging part comprises: the model of the ear hanging part corresponds to the model from the auricle to the auricle tail in the auricle of the human body; the machine core part is provided with an inner side surface which is attached to the auricle of a human body when in use, and a sound producing hole is arranged on the inner side surface; the ear hook part is bent and extended backwards from a connecting end connected with the core part to form a bending part corresponding to the groove shape of the back surface of the auricle in the auricle of the human body, and a gap for clamping the upper part of the auricle in the auricle of the human body is formed between the bending part and the core part; the machine core part is also provided with a rear sound hole, the sound producing hole and the rear sound hole are respectively positioned at the front side and the rear side of the sound producing unit in the machine core part, and at least one group of connecting lines of the corresponding sound producing hole and the rear sound hole point to the auditory canal.

In the above technical solution, the rear sound hole is formed on a peripheral side surface of the machine core adjacent to the gap.

Furthermore, in the above technical solution, the open earphone simultaneously satisfies the following conditions: (1) An acute included angle is formed between a plane A and a plane B of the bending part, the range of the acute included angle is 22-30 degrees, and the plane B is parallel to a plane of the sounding hole or the sounding Kong Qiemian; (2) The included angle between the plane C and the plane D is 62-70 degrees; the plane C is a plane which passes through the central axis of the machine core part 2 in the long axis direction and is perpendicular to the plane A; the plane D is a plane extending in the direction passing through the axis of the battery compartment 13 and perpendicular to the plane a.

In the above technical solution, the curvature of the bending portion gradually decreases from the connecting end.

Furthermore, in the above technical solution, the main body of the movement part is shaped like a racetrack or an ellipse, and the sounding hole is located on one side of the inner side surface near the gap.

In the above technical solution, the height of the middle area of the bending portion is 4.5±1mm, and the width is 3.4±1mm.

In the above technical scheme, the width of the battery compartment is larger than the width of the middle area of the bending part, and the width between the bending part and the battery compartment is in smooth transition gradually widening.

Furthermore, in the technical scheme, the width of the battery compartment is not more than 10.6mm.

Further, in the above technical solution, the width of the gap in the long axis direction of the machine core is: 6.6-10mm;

furthermore, in the above technical solution, the width of the gap in the minor axis direction of the movement portion is: 6.5-7.2mm.

By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:

1. the invention aims at an open earphone adopting an ear-hanging structure, and in order to facilitate wearing, the model of the ear-hanging part corresponds to the model from the auricle to the auricle tail in the auricle of a human body, so that a user can wear the open earphone more stably and is comfortable to wear.

2. In the invention, the core part is provided with the sound producing hole and the rear sound hole, and the connecting lines of the sound producing hole and the rear sound hole point to the auditory canal. Therefore, the directivity of sound production of the earphone can be improved, the purpose of preventing sound leakage can be achieved, unidirectional concentrated transmission of sound can be achieved, and the purpose of directional sound production is achieved.

3. The invention optimizes the parameters related to the ear-hanging part and the movement part of the earphone, accords with the ergonomics of most people, and improves the wearing comfort under the condition of ensuring the normal wearing of the earphone.

Description of the drawings:

FIG. 1 is a schematic illustration of a human auricle configuration;

FIG. 2 is a schematic view of an alternative view of a human auricle configuration;

FIG. 3 is a front view of the present invention;

FIG. 4 is a perspective view of another view of the present invention;

FIG. 5 is a front view of the present invention;

FIG. 6 is a top view of the present invention;

FIG. 7 is a schematic illustration of the present invention as worn;

FIG. 8 is a schematic view of another view of the present invention as worn;

the specific embodiment is as follows:

the invention will be further described with reference to specific examples and figures.

The invention relates to an open earphone which is used for improving wearing comfort according to ergonomics. As shown in fig. 2 to 6, the present invention includes: an ear hook 1 and a core 2 connected to each other.

Referring to fig. 7, the ear hook 1 is used to hang on the auricle 3 of a human body. The ear hook 1 comprises: a connecting part 11 connected with the movement part 2, a bending part 12 and a battery compartment 13 with a built-in battery unit. The whole shape of the ear hook part 1 is as follows: with a corresponding configuration along the auricle 311 to the auricle 312 in the auricle 31 of the human auricle 3. The design is adapted to the shape of the helix 31, so that the wearing is stable.

The ear hook 1 is bent and extended backward from the connecting end 11 connected with the movement 2 to form a bending part 12 corresponding to the shape of the groove 33 on the back of the auricle 31 in the auricle 3 of the human body. The curvature of the curved portion 12 gradually decreases from the connecting end 11. A gap 30 for holding the upper part of the auricle 31 in the auricle 3 of the human body is formed between the bending portion 12 and the movement portion 2. The battery compartment 13 is used for internally arranging a battery unit and providing power for the movement part 2.

The connecting portion 11, the bending portion 12 and the battery compartment 13 are generally integrally formed by plastic materials, in order to provide support for the whole ear-hook portion 1, a memory metal material, such as a titanium wire, is disposed in the bending portion 12, the diameter of the memory metal material is generally 0.6-1mm, two ends of the titanium wire are connected and fixedly connected to the connecting portion 11 and the battery compartment 13, and the shape of the titanium wire corresponds to that of the bending portion 12.

The core part 2 is internally provided with a sounding unit such as a loudspeaker, a control circuit and the like. The movement part 2 is provided with an inner side surface 20 which is attached to the auricle 3 of a human body when in use, and a sound producing hole 21 is arranged on the inner side surface 20. The machine core part 2 is also provided with a rear sound hole 22.

In this embodiment, the main body of the movement 2 is shaped like a racetrack or an ellipse, and the sound emitting hole 21 is located on one side of the inner side 20 near the gap 30. Since the present invention is an open earphone, the sound emitting aperture 21 is located directly in the ear canal 32, unlike an earplug type earphone. The core 2 is usually located above the ear canal 32 and near the face, and the sound emitting hole 21 is disposed on one side near the gap 30 (i.e. near the back of the face), so that the sound emitting hole 21 is directed to the ear canal 32 for the user to obtain a clear audio effect.

The sound producing holes 21 and the rear sound producing holes 22 are respectively positioned at the front side and the rear side of the sound producing unit in the machine core part 2. In order to improve the hearing effect of the user, in this embodiment, two mutually independent front sound cavities and rear sound cavities are respectively disposed on the front and rear sides of the diaphragm loudspeaker as the sound generating unit, wherein the sound generating hole 21 is communicated with the front sound cavity, and the rear sound hole 22 is communicated with the rear sound cavity. In order to reduce the leakage sound and make the earphone office have better sound directivity, the connection line of the sound emitting hole 21 and the rear sound hole 22 is directed to the human auditory canal 32. That is, the sound hole 21, the rear sound hole 22, and the ear canal 32 are positioned on a straight line.

Specifically, since the sound hole 21 is located on the inner side 20 of the core 2, the rear sound hole 22 is formed on the peripheral side of the movement 2 adjacent to the gap 30 in order to ensure that the line between the sound hole 21 and the rear sound hole 22 is aligned with the ear canal 32 of the ear of the human body. The line connecting the rear sound hole 22 and the sound hole 21 thus forms a diagonal line to point to the auditory canal 32.

Typically, the sound producing hole 21 and the rear sound producing hole 22 are respectively formed by two holes, and only the connection line of the sound producing hole 21 and the rear sound producing hole 22 at corresponding positions is required to be ensured to be directed to the auditory canal 32. After adopting this kind of technical scheme, have following advantage:

1. two mutually independent front sound cavities and rear sound cavities are arranged on the front side and the rear side of the inner sound generating unit of the movement part 2, the front sound cavities are used as coupling cavities, the volume of the front sound cavities is equal to the volume of the inner cavity of the sound generating unit and the volume of the rear sound cavities, and meanwhile, the sound generating holes 21, the rear sound holes 22 and the auditory meatus 32 are positioned on the same straight line. The leakage sound outputted from the sound emission hole 21 and the leakage sound outputted from the rear sound emission hole form two corresponding front sound sources and rear sound sources, forming a pair of sound dipoles. Because the acoustic dipole has characteristic directivity, sound pressure in the two-point connecting line directions between the sound producing holes 21 and the rear sound producing holes 22 of the two holes is completely counteracted; the sound pressure is strongest in the direction of the perpendicular bisector of the two-point connecting line, so that the sound is concentrated and forms two paths of sound along the sound producing holes 21 of the two holes to be transmitted to the auditory canal 32 in a unidirectional manner, the purpose of preventing sound leakage can be achieved, and the unidirectional concentrated transmission of the sound can be achieved, namely the purpose of directional sound production is achieved. Even if the wearing deviation exists, the sound transmitted by the earphone can be transmitted to the auditory canal, so that the sound quality is ensured.

Of course, if the sound-producing hole 21 and the rear sound-producing hole 22 are formed by a plurality of small holes in array, the central connecting line of the sound-producing hole 21 and the rear sound-producing hole 22 is directed to the auditory canal 32.

As described with reference to fig. 7 and 8, when the present invention is worn, the ear-hook portion 1 is placed on the rear side of the auricle 31, and is fitted along the groove 33 on the rear side of the auricle 31, and the movement portion 2 is fitted on the front side of the auricle 31 above the auditory canal 32.

In order to improve wearing comfort of the earphone, better accords with ergonomics and improves wearing stability, the invention carries out specific design on relevant parameters of the earphone and meets the following conditions:

1. an acute angle B is formed between the plane a where the bending portion 22 is located and the plane B, and the plane B is parallel to the plane where the sound emitting hole 21 is located or the tangent plane of the sound emitting hole 21. When the inner side 20 is a plane, the plane B coincides with the inner side 20. When the inner side 20 has a certain curvature, the plane B is a tangential plane at the sound emitting hole 21.

Since the auricle 3 of the human body forms an angle with the face of about 25-35 degrees, a corresponding arrangement is also required in the present invention in order to fit the auricle 3. In this embodiment, the acute included angle B between the plane in which the bending portion 22 is located and the plane B is in the range of 22 ° -30 °. In this angular range, it is ensured that the earphone is adapted to the shape of the auricle 3, providing the necessary clamping force for wearing, and at the same time, avoiding discomfort for the user due to too small included angle and too large clamping force.

2. The angle a between plane C and plane D ranges from 62 ° to 70 °. The plane C is a plane passing through the central axis of the machine core 2 in the long axis direction and perpendicular to the plane a. The plane D is a plane extending in the direction passing through the axis of the battery compartment 13 and perpendicular to the plane a.

The angle a between the plane C and the plane D determines the fitting degree of the ear-hook portion 1 and the auricle 3, and when the angle is too large, the ear-hook portion 1 cannot be completely fitted to the auricle 3. Particularly, when the included angle a between the plane C and the plane D is too large, the battery compartment 13 cannot be attached to the surface of the groove 33 of the auricle 3 to form a certain gap, so that the earphone is unstable to wear and easy to drop. When the angle a between the plane C and the plane D is too small, the battery compartment 13 portion transitionally clamps the surface of the groove 33, resulting in a certain pressure, which may cause discomfort to the user.

3. The height D1 of the middle region of the bent portion 12 is 4.5.+ -. 1mm, and the width D2 is 3.4.+ -. 1mm.

In the wearing process of the earphone, the bending part 12 is just above the groove 33, and the human ear groove 33 is not a standard arc surface, so the radial size of the bending part 12 is correspondingly designed to be more in line with the shape of the human ear groove 33.

4. The width of the battery compartment 13 is larger than that of the middle area of the bending part 12, and smooth transition with gradually widened width is formed between the bending part 12 and the battery compartment 13. Typically, the width D3 of the battery compartment 13 does not exceed 10.6mm.

The battery compartment 13, although configured for a battery unit, also serves to stabilize the headset during wear of the headset and has a weight balancing effect. The width of the area below the groove 33 of the human ear is obviously larger than that of the area above the groove 33, so that the width dimension of the battery compartment 13 is larger than that of the bending part 12, which is beneficial to fitting and keeps the wearing stability of the earphone stable.

5. The width of the gap 30 in the long axis direction H1 of the movement 2 is: 6.6-10mm; the width of the gap 30 in the short axis direction H2 of the movement part 2 is as follows: 6.5-7.2mm.

During the wearing process of the earphone, the helix 31 of the auricle 3 just passes through the gap 30, so the invention adjusts the size of the gap 30 according to the thickness of the auricle 3, and the auricle is matched with the auricle better.

The following are wearing comfort test results of the present invention.

Comparing the invention with related similar earphone products on the market, the test process is as follows:

number of test persons: 100 persons/group, 3 groups total, 300 persons. Wherein the ratio of men to women is approximately 1:1. Weight 42-75 kg.

Test time: not less than 1 hour.

Diameter of titanium wire: 0.6-1mm;

scoring criteria: the number is 0-5, 0 is very poor, 1 is very poor, 2 is poor, 3 is general, 4 is good, and 5 is very good.

Test items:

a. comfort level: whether the ears have distending pain or not, heat and discomfort.

b. Tightness degree: the brain bag is swayed slowly/quickly three times and is jumped up three times. See if the earphone will come loose or come off the ear;

c. distribution convenience: the taking and wearing are convenient and easy to operate.

d. Stability during exercise: running looks for whether the earphone is loose or out.

Through testing, the evaluation score of the invention is as follows: average comfort level: 3.75; average division of tightness: 3.7; wear convenience average score: 4.25; firm average score moves: 4.2. clearly due to the comparative product.

The invention optimizes the parameters related to the ear-hanging part and the movement part of the earphone, accords with the ergonomics of most people, and improves the wearing comfort under the condition of ensuring the normal wearing of the earphone.

It is understood that the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.

Claims

1. An open earphone, comprising: an ear-hanging part with a built-in battery unit and a core part with a built-in sounding unit, wherein the ear-hanging part comprises: the battery compartment of connecting portion, bending portion and built-in battery cell that is connected with core portion, its characterized in that:

the shape of the ear hanging part corresponds to the shape from the auricle feet to the auricle tails in the auricle of the human body; the machine core part is provided with an inner side surface which is attached to the auricle of a human body when in use, and a sound producing hole is arranged on the inner side surface;

the ear hook part is bent and extended backwards from a connecting end connected with the core part to form a bending part corresponding to the groove shape of the back surface of the auricle in the auricle of the human body, and a gap for clamping the upper part of the auricle in the auricle of the human body is formed between the bending part and the core part;

the machine core part is also provided with a rear sound hole, the sound producing hole and the rear sound hole are respectively positioned at the front side and the rear side of the sound producing unit in the machine core part, and at least one group of connecting lines of the corresponding sound producing hole and the rear sound hole point to the auditory canal;

the open earphone meets the following conditions simultaneously:

(1) An acute included angle is formed between a plane A and a plane B of the bending part, the range of the acute included angle is 22-30 degrees, and the plane B is parallel to a plane of the sounding hole or the sounding Kong Qiemian;

(2) The included angle between the plane C and the plane D is 62-70 degrees; the plane C is a plane which passes through the central axis of the machine core part in the long axis direction and is perpendicular to the plane A; the plane D is a plane which passes through the axis extending direction of the battery compartment and is perpendicular to the plane A.

2. An open earphone as claimed in claim 1, wherein: the rear sound hole is formed in the peripheral side face, adjacent to the gap, of the machine core part.

3. An open earphone as claimed in claim 1, wherein: the curvature of the bending part gradually decreases from the connecting end.

4. An open earphone as claimed in claim 1, wherein: the movement part main body is in a runway shape or an elliptic shape, and the sounding hole is positioned on one side of the inner side surface close to the gap.

5. An open earphone as claimed in claim 1, wherein: the height of the middle area of the bending part is 4.5 plus or minus 1mm, and the width is 3.4 plus or minus 1mm.

6. An open earphone as claimed in claim 1, wherein: the width of the battery compartment is larger than that of the middle area of the bending part, and smooth transition with gradually widened width is formed between the bending part and the battery compartment.

7. An open earphone as claimed in claim 1, wherein: the width of the battery compartment is not more than 10.6mm.

8. An open earphone as claimed in claim 1, wherein: the width of the gap in the long axis direction of the machine core part is as follows: 6.6-10mm.

9. An open earphone as claimed in claim 1, wherein: the width of the gap in the short axis direction of the machine core part is as follows: 6.5-7.2mm.