Earphone

Abstract

The utility model discloses an earphone which comprises a sound production part, an abutting part and an ear hook, the ear hook is connected with the sound production part and the abutting part, and the ear hook provides elastic acting force between the sound production part and the abutting part, so that the sound production part and the abutting part have clamping force for clamping the two sides of the auricle in a wearing state. Wherein the ear hook is arranged to enable the sound production part and the abutting part to abut against each other in a natural state so as to form a pre-tightening force. Through the above mode, the adaptability of the earphone can be improved.

Description

[0001] This application is a divisional application of the Chinese patent application submitted to the China Patent Office on February 6, 2024, with application number 202420285892.3 and invention name “A Headphone”. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to a headset. Background Art

[0003] Headphones have been widely used in people's daily life. They can be used with mobile phones, computers and other electronic devices to provide users with sound playback functions. Among them, ear clip headphones are a new type of headphones. They are usually small in size and can be clamped on the wearer's ear helix for use. Moreover, the ear clip headphones do not block the ear canal, which not only ensures the safety of outdoor scenes, but also is more comfortable to wear than in-ear headphones.

[0004] However, current ear clip-on headphones have low adaptability. Utility Model Content

[0005] The present application provides an earphone, which includes a sound-emitting part, an abutting part and an ear hook, wherein the ear hook connects the sound-emitting part and the abutting part, and the ear hook provides an elastic force between the sound-emitting part and the abutting part so that the sound-emitting part and the abutting part have a clamping force on both sides of the auricle when worn, wherein the ear hook is configured to make the sound-emitting part and the abutting part abut against each other in a natural state to form a pre-tightening force.

[0006] In some embodiments, the elastic coefficient and preload force of the ear hook are set so that when the minimum interval between the sound-emitting portion and the abutting portion increases from 3.8 mm to 5.5 mm, the change in the elastic force is less than or equal to 20 grams of force.

[0007] In some embodiments, the elastic coefficient and preload force of the ear hook are set so that when the minimum interval between the sound-emitting portion and the abutting portion increases from 3.8 mm to 5.5 mm, the elastic force is between 25 g-f and 65 g-f.

[0008] In some embodiments, the preload force is set between 1 gram-force and 25 grams-force, and the elastic coefficient of the ear hook is set so that when the minimum interval is 3.85 mm, the elastic force is between 25 grams-force and 48 grams-force, and when the minimum interval is 5.5 mm, the elastic force is between 26 grams-force and 65 grams-force.

[0009] In some embodiments, the earphone also includes a magnetic coupling matching structure, which provides a magnetic coupling force between the sound-emitting part and the abutment part. The magnetic coupling force and the elastic force cooperate to form a clamping force. The trend of the magnetic coupling force changing with the minimum distance between the sound-emitting part and the abutment part is opposite to the trend of the elastic force changing with the minimum distance.

[0010] In some embodiments, the magnetic coupling matching structure includes a first magnetic coupling matching piece disposed on the sound-emitting portion and a second magnetic coupling matching piece disposed on the abutting portion, and the first magnetic coupling matching piece and the second magnetic coupling matching piece are magnetically attracted to each other.

[0011] In some embodiments, the elastic force and the magnetic coupling force are configured such that when the minimum interval between the sound-emitting portion and the abutting portion increases from 3.85 mm to 5.5 mm, the clamping force is between 25 g-f and 65 g-f.

[0012] In some embodiments, the magnetic coupling force is configured such that when the minimum interval between the sound emitting portion and the abutting portion increases from 3.8 mm to 5.5 mm, the change in the magnetic coupling force is greater than or equal to 20 g-force.

[0013] In some embodiments, the ear hook includes an elastic sheet, both ends of which along the length direction are fixed relative to the sound-emitting portion and the abutting portion respectively, and the ratio of the width to the thickness of the elastic sheet is 8-12.

[0014] In some embodiments, within a reference cross-section arranged along the length direction of the ear hook, the ear hook, the sound-emitting portion and the abutting portion have an inner contour, the inner contour has a first reference point located on the ear hook and corresponding to the edge of the helix, the inner contour also has a second reference point located on the side of the first reference point facing the sound-emitting portion and a third reference point located on the side of the first reference point facing the abutting portion, a first connecting line is formed between the first reference point and the second reference point, and a second connecting line is formed between the first reference point and the third reference point, in a natural state, the length of the first connecting line is between 16 and 19 mm, the length of the second connecting line is between 6.5 and 9.0 mm, the angle between the first connecting line and the second connecting line is between 72° and 88°, the inner contour between the first reference point and the second reference point is located outside the first connecting line, and the inner contour between the first reference point and the third reference point is located outside the second connecting line.

[0015] In some embodiments, an arc-chord ratio of the inner contour between the first reference point and the second reference point is between 1.02 and 1.20; an arc-chord ratio of the inner contour between the first reference point and the third reference point is between 0.85 and 1.23.

[0016] In some embodiments, the sound-emitting portion has a fourth reference point closest to the first reference point and a fifth reference point farthest from the first reference point, and an arc-to-chord ratio of an outer wall surface of the sound-emitting portion between the fourth reference point and the fifth reference point and toward the abutting portion is between 1.4 and 1.7.

[0017] In some embodiments, a third line is formed between the first reference point and the fourth reference point, the third line is located between the first line and the second line, the length of the third line is between 13 and 17 mm, and the angle between the third line and the first line is 15° to 27°; and / or, a fourth line is formed between the first reference point and the fifth reference point, the fourth line is located between the first line and the second line, the length of the fourth line is between 24 and 30 mm, and the angle between the fourth line and the first line is 13° to 25°. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a wearing state of an earphone embodiment of the present application when worn on a human ear;

[0019] Figure 2 yes Figure 1 A schematic front view of the structure of the earphone shown;

[0020] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the earphone shown;

[0021] Figure 4 yes Figure 1 A schematic top view of the structure of the earphone shown;

[0022] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of the sound-generating part of the earphone shown;

[0023] Figure 6 yes Figure 5 A schematic front view of the structure of the vocal part shown;

[0024] Figure 7 yes Figure 6 A schematic diagram of a cross-sectional structure of the sound-producing part along the cutting line AA is shown;

[0025] Figure 8 yes Figure 6 Another schematic diagram of the cross-section structure of the sound-producing part along the cutting line AA;

[0026] Fig. 9 yes Figure 5 A schematic top view of the structure of the sound-producing part shown;

[0027] Fig.10 yes Figure 8 A schematic side view of the structure of the sound-generating component of the sound-generating part shown;

[0028] Fig.11 yes Fig.10 The schematic diagram of the cross-sectional structure of the sound generating assembly shown along the section line PP;

[0029] Fig.12 yes Figure 8An exploded schematic diagram of the sound-generating assembly shown;

[0030] Fig.13 yes Figure 8 A schematic diagram of the three-dimensional structure of another exemplary sound-generating component of the sound-generating part shown;

[0031] Fig.14 yes Fig.11 An enlarged schematic diagram of a local area Q of the sound-generating component shown;

[0032] Fig.15 yes Figure 5 A schematic side view of the structure of the sound-producing part shown;

[0033] Fig.16 yes Fig.15 The schematic diagram of the cross-sectional structure of the sound-producing part along the cutting line JJ is shown;

[0034] Fig.17 yes Fig.16 A schematic top view of the structure of the sound-generating component of the sound-generating part shown;

[0035] Fig.18 yes Figure 8 Another side view of the structure of the sound generating assembly of the sound generating part;

[0036] Fig.19 yes Figure 5 A schematic diagram of an exploded structure of the vocal part shown;

[0037] Fig. 20 yes Figure 5 Another schematic diagram of the decomposed structure of the vocal part shown;

[0038] Fig.21 yes Fig.15 The schematic diagram of the cross-sectional structure of the sound-producing part along the cutting line UU is shown;

[0039] Fig. 22 yes Fig.15 Another structural schematic diagram of the pressure relief hole of the sound-generating part shown;

[0040] Fig.23 yes Figure 5 Another schematic diagram of the decomposed structure of the vocal part shown;

[0041] Fig.24 yes Figure 4 The cross-sectional structure diagram of the earphone shown along the section line VV;

[0042] Fig.25 yes Fig.24 A schematic diagram of a cross section corresponding to the section line VV shown;

[0043] Fig.26 yes Figure 1The earphone shown is a schematic diagram of a three-dimensional structure in a pre-tightened state;

[0044] Fig. 27 yes Fig.26 A schematic diagram showing the change in clamping force of the earphone shown;

[0045] Fig.28 yes Fig.26 The earphone shown has a structural intent of measuring the preload force through a thin film pressure sensor;

[0046] Fig.29 yes Fig.26 A schematic diagram of the structure of a device for measuring the clamping force / pre-tightening force of the earphone shown;

[0047] Fig.30 yes Fig.26 A schematic diagram of the structure of another device for measuring the clamping force / pre-tightening force of the earphone shown;

[0048] Fig.31 yes Figure 1 The earphone shown has a structural schematic diagram of a magnetic coupling matching structure;

[0049] Fig.32 yes Fig.31 A schematic diagram of the change in clamping force of the earphone shown;

[0050] Fig.33 yes Fig.31 A schematic diagram of the change in clamping force of the earphone in a pre-tightened state;

[0051] Fig.34 yes Figure 2 A schematic diagram of the cross-sectional structure of the earphone shown along the cutting line II;

[0052] Fig.35 yes Fig.24 Another schematic diagram of the cross section corresponding to the section line VV shown;

[0053] Fig.36 yes Figure 1 Another structural schematic diagram of the earphone shown. DETAILED DESCRIPTION

[0054] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0055] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0056] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0057] like Figure 1 As shown, the user's ear EAR may include the external auditory canal E11, the cavum concha E12, the cymba concha E13, the triangular fossa E14, the antihelix E15, the scaphoid E16, the helix E17 and the antitragus E18. Among them, although the external auditory canal 101 has a certain depth and extends to the eardrum of the ear EAR, for the convenience of description, and in combination with Figure 1 As shown, in the present application, unless otherwise specified, the external auditory canal E01 specifically refers to its entrance away from the tympanic membrane (i.e., the ear hole). Furthermore, the concha cavity E12, the hymena concha E13, the triangular fossa E14 and other physiological parts have a certain volume and depth; and the concha cavity E12 is directly connected to the external auditory canal E11, that is, the ear hole can be simply regarded as being located at the bottom of the concha cavity E12.

[0058] Furthermore, there is a tragus E19 outside the external auditory canal of the ear EAR, which has a certain depth and volume in three-dimensional space compared to the cavum concha E12, the cymba concha E13 and the triangular fossa E14, that is, these parts are respectively concave toward the back side of the ear EAR in the direction close to the user's head, and the tragus E19 is convex toward the front side of the ear EAR in the direction away from the user's head. Among them, "the front side of the ear EAR" is a concept relative to the "back side of the ear EAR", the former refers to the side of the ear EAR away from the head, for example Figure 1 , the latter refers to the side of the ear EAR facing the head, and they are all aimed at the user's ear EAR.

[0059] Furthermore, different users may have individual differences, resulting in different shapes, sizes and other dimensional differences in the ear EAR. In order to facilitate description and reduce (or even eliminate) individual differences between different users, a simulator containing a head and its (left and right) ear EARs can be made based on ANSI: S3.36, S3.25 and IEC: 603187 standards, such as GRAS45BCKEMAR. Therefore, descriptions such as "the user wears the earphones", "the earphones are in a wearing state" and "in a wearing state" may refer to the ear EAR of the earphones described in this application worn on the aforementioned simulator. Of course, precisely because different users have individual differences, the earphones may be worn by different users and there may be certain differences in the ear EAR of the earphones worn on the aforementioned simulator, but such differences should be tolerated.

[0060] The present application embodiment describes at least one exemplary structure of the earphone 1. Figure 1 As shown, Figure 1 FIG. 1 shows a state where the earphone 1 is worn on the user's ear EAR. The earphone 1 may be an ear clip type earphone. Figures 1 to 4 As shown, the earphone 1 includes a sound-emitting portion 100 for inserting into the concha cavity E12 of the user (user), an abutment portion 400 for abutting the back of the user's ear, and an ear hook 300 connected to the sound-emitting portion 100 and the abutment portion 400. The ear hook 200 can bypass the user's auricle 17, and the sound-emitting portion 100 and the abutment portion 400 form a clamping state on both sides of the user's auricle. The sound-emitting portion 100 is a sound playing device, which is used to convert an electrical signal into an acoustic signal and play it to the wearer. The abutment portion 400 forms a clamping state with the sound-emitting portion 100 so that the entire earphone 1 is clamped and worn on the user's auricle. In some embodiments, the abutment portion 400 may be provided with devices such as batteries and circuit boards. Of course, the abutment portion 400 may also be used without a battery, and the battery may be installed in the sound-emitting portion 100.

[0061] In some embodiments, Figure 5 and Figure 6As shown, the sound-emitting part 100 may be provided with a sound-emitting hole 111 and a pressure-relieving hole 112. The sound-emitting hole 111 may be located at the bottom of the sound-emitting part 100, and the pressure-relieving hole 112 may be located at a side of the sound-emitting part 100 close to the ear hook 300. Figure 7 As shown, the sound-emitting part 100 includes a first housing 10 and a sound-emitting component 20. The first housing 10 is used to form a first accommodating cavity 110, and the sound-emitting component 20 is disposed in the first accommodating cavity 110.

[0062] like Figure 7 As shown, the sound-emitting component 20 includes two speakers 21. Each speaker 21 includes a diaphragm 22. The two speakers 21 are assembled and matched with each other along the axial direction (that is, the direction of the axis Z) to form a first acoustic cavity 201 between the two speakers 21. The sound-emitting component 20 and the first shell 10 cooperate with each other to form a second acoustic cavity 202 isolated from the first acoustic cavity 201 between the sound-emitting component 20 and the first shell 10. The first shell 10 is provided with a sound outlet 111 connected to the first acoustic cavity 201 and a pressure relief hole 112 connected to the second acoustic cavity 202. The sound generated on one side of the diaphragm 22 of the two speakers 21 is output through the first acoustic cavity 201 and the sound outlet 111, and the sound generated on the other side of the diaphragm 22 of the two speakers 21 is output through the second acoustic cavity 202 and the pressure relief hole 112. Among them, the axial direction can be the direction indicated by the central axis Z of the sound-emitting component 20. The central axis Z can, for example, pass through the geometric center of the sound-emitting component 20 and the geometric center of the diaphragms 22 of the two speakers 21. The central axis Z can also be the central axis of the magnetic circuit of the two speakers 21.

[0063] For a speaker 21 used to generate sound, sound pressure level is an important parameter to measure its performance. Sound pressure level is usually used to compare the sound pressure levels emitted by different sound sources and to quantify and compare the intensity of the sound. Sound pressure level is a measure used to describe the size of a sound. It represents the logarithm of the ratio between the effective value of the sound pressure and its reference value. The specific formula is as follows:

[0064]

[0065] Wherein, SPL is the sound pressure level, P is the sound pressure generated when the speaker 21 is working, and Pref is the reference sound pressure. When the sound-generating component 20 is only provided with a single speaker 21, the sound pressure generated when it is working is P, and when two speakers 21 are provided in the sound-generating component 20 under the same conditions, the sound pressure generated when it is working is 2P. According to the above formula, the difference in sound pressure level between a single speaker 21 and two speakers 21 can be calculated as follows:

[0066]

[0067] From the above derivation, it can be seen that, compared with only setting up one speaker 21, by assembling and matching along the axial direction (i.e., the direction of axis Z) in the sound-emitting component 20 and forming a first acoustic cavity 201 between the two speakers to produce sound, the sound pressure level of the sound-emitting component 20 can be effectively improved, thereby achieving a better volume effect, allowing the user to hear clearer sound, and effectively improving the sound quality of the earphone 1.

[0068] In addition, by assembling and matching the two speakers 21, the diaphragms 22 of the two speakers 21 can be opposite to each other to form a first acoustic cavity 201. The first acoustic cavity 201 is a place where the diaphragm 22 vibrates to push the air to generate sound waves for the user to listen to. The second acoustic cavity 202 is connected to the pressure relief hole 112 and then to the outside world, which is used to balance the air pressure inside the first shell 10. The two speakers 21 can be assembled to form the first acoustic cavity 201. After the two speakers 21 are assembled, they are assembled as a whole in the first shell 10, which can simplify the structure and simplify the assembly. Moreover, by using the second acoustic cavity 202 isolated from the first acoustic cavity 201 to be formed between the sound-emitting component 20 and the first shell 10, there is no need to form the second acoustic cavity 202 through additional structures or devices, which can also simplify the structure, reduce the difficulty of assembling the earphone 1, and improve the assembly efficiency of the earphone 1.

[0069] Optionally, the two speakers 21 of the sound-generating assembly 20 have the same acoustic characteristics and are coaxially arranged along the axis direction (i.e., the direction of the axis Z). The same acoustic characteristics of the two speakers 21 means that the sound pressures generated by the two speakers 21 are the same or close to each other under the drive of the same driving signal, specifically, the ratio of the difference in sound pressure between the two speakers to the minimum sound pressure is not greater than 10%. By providing two speakers 21 with the same acoustic characteristics and coaxially arranging the two speakers along the axis direction (i.e., the direction of the axis Z), the sound quality of the sound-generating assembly 20 is improved.

[0070] Alternatively, if Figure 7 As shown, the sound-emitting component 20 also includes a mounting bracket 27, which is arranged in a ring shape. The two speakers 21 are respectively assembled and matched with the two ends of the mounting bracket 27 to form a first acoustic cavity 201. The mounting bracket 27 is provided with a first sound inlet hole 203 connecting the sound outlet hole 111 and the first acoustic cavity 201.

[0071] By providing an annular mounting bracket 27, a first acoustic cavity 201 is formed while realizing the assembly and cooperation of the two speakers 21, and a first sound inlet hole 203 is provided on the mounting bracket 27 to realize the connection between the sound outlet hole 111 and the first acoustic cavity 201, so as to realize that the sound waves in the first acoustic cavity 201 are transmitted to the user's ear EAR through the first sound inlet hole 203 and the sound outlet hole 111 in sequence, thereby effectively simplifying the structure, effectively improving the structural compactness and integration of the sound-generating component 20, and helping to reduce the difficulty of assembly and improve assembly efficiency.

[0072] Optionally, in some embodiments, Figure 7 As shown, the two speakers 21 respectively include a voice coil 23, a magnetic circuit system 24 and a basin frame 25. The basin frame 25 is used to support the diaphragm 22 and the magnetic circuit system 24. The voice coil 23 is connected to the diaphragm 22 and is arranged in the magnetic field formed by the magnetic circuit system 24. The basin frames 25 of the two speakers 21 are respectively assembled and matched with the mounting bracket 27, so that a first acoustic cavity 201 is formed between the diaphragms 22 and the mounting bracket 27 of the two speakers 21. Among them, the voice coil 23 can be cylindrical, and the axis of the voice coil 23 can be the central axis Z of the sound-generating component 20. The voice coil 23 is affected by the magnetic field formed by the magnetic circuit system 24 and moves in the axial direction (i.e., the direction of the axis Z) to drive the diaphragm 22 to vibrate and generate sound waves.

[0073] The sound assembly 20 is assembled by assembling the basin frames 25 of the two speakers 21 with the mounting bracket 27, and the basin frames 25 are configured to support the diaphragm 22 and the magnetic circuit system 24. The structure is simple and compact, which effectively reduces the difficulty of assembly and effectively improves the assembly efficiency.

[0074] Figure 7 The figure shows the assembly and cooperation of the basin frame 25 and the mounting bracket 27 of the two speakers 21. Optionally, in some embodiments, the mounting bracket 27 can also be eliminated, and the basin frames 25 of the two speakers 21 can be assembled and cooperated with each other to form the first acoustic cavity 201. In this case, the basin frame 25 on at least one of the two speakers 21 is provided with a first sound inlet hole 203 connecting the sound outlet hole 111 and the first acoustic cavity 201. For example, both basin frames 25 can be provided with a sound outlet hole 111, or each can be provided with a part of the sound outlet hole 111, and a complete sound outlet hole 111 is formed after assembly. The assembly and cooperation of the two speakers 21 and the formation of the first acoustic cavity 201 are achieved through the assembly and cooperation between the two basin frames 25, without the need to set up additional connecting parts, which simplifies the structure and reduces the production cost, and is conducive to reducing the difficulty of assembly and improving the assembly efficiency.

[0075] Alternatively, if Figure 7 As shown, the diaphragms 22 of the two speakers 21 are arranged adjacent to each other at the side facing away from the respective magnetic circuit systems 24 , and the first acoustic cavity 201 is formed between the diaphragms 22 of the two speakers 21 .

[0076] The diaphragms 22 of the two speakers 21 are driven by their respective voice coils 23 to vibrate, so as to generate sound waves for the user to listen to on the side away from their respective magnetic circuit systems 24. By arranging the diaphragms 22 of the two speakers 21 adjacent to each other on the side away from their respective magnetic circuit systems 24, the two speakers 21 both generate sound waves in the first acoustic cavity 201, which effectively simplifies the structure of the sound-generating component 20 and facilitates reducing the volume of the first acoustic cavity 201, making the structure of the sound-generating component 20 more compact, which is conducive to reducing the volume of the earphone 1 and improving the wearing comfort of the earphone 1. In addition, the two speakers 21 sharing the first acoustic cavity 201 can also move the resonance peak of the first acoustic cavity 201 to high frequencies, which is conducive to improving the sound quality of the earphone 1.

[0077] like Figure 7 As shown, the basin frames 25 of the two speakers 21 are respectively provided with second sound-introducing holes 204 , and the second sound-introducing holes 204 connect the side of the corresponding diaphragm 22 facing the respective magnetic circuit system 24 with the second acoustic cavity 202 .

[0078] The diaphragms 22 of the two speakers 21 are connected to the second acoustic cavity 202 through the second sound inlet hole 204 on one side facing their respective magnetic circuit systems 24, and further connected to the outside through the pressure relief hole 112 to balance the air pressure inside the first shell 10. This helps to simplify the structure of the sound-generating component 20 while ensuring the sound quality, making it easier to assemble.

[0079] Optionally, in some embodiments, Figure 7 As shown, the diaphragms 22 of the two speakers 21 share the second acoustic cavity 202 and the pressure relief hole 112 on the side facing the respective magnetic circuit systems 24. Such a configuration can reduce the number of pressure relief holes 112, improve the aesthetics of the earphone 1, and help ensure the consistency of the acoustic characteristics of the two speakers 21, which is beneficial to improving the sound quality of the sound-generating component 20. In addition, the two speakers 21 share the second acoustic cavity 202, which is also convenient for sealing, and can reduce the volume of the first shell 10, making the structure of the earphone 1 more compact, effectively reducing the volume of the earphone 1, and helping to improve the wearing comfort of the earphone 1.

[0080] Alternatively, in other embodiments, such as Figure 8As shown, the second acoustic cavity 202 includes two sub-acoustic cavities 202a isolated from each other, and the first shell 10 is provided with a pressure relief hole 112 respectively connected to each sub-acoustic cavity 202a, and the diaphragms 22 of the two speakers 21 are respectively connected to the corresponding sub-acoustic cavity 202a and the pressure relief hole 112 on the side facing the respective magnetic circuit systems 24. By isolating the two sub-acoustic cavities 202a, the sound signals of the two speakers 21 can be not completely consistent, that is, the earphone 1 has a certain frequency division function to adapt to different listening environments and sound quality requirements, and the two isolated sub-acoustic cavities 202a can reduce the mutual interference between the two speakers 21, thereby improving the effectiveness and reliability of the two speakers 21, which is conducive to improving the sound quality of the earphone 1.

[0081] Alternatively, if Fig. 9 and Fig.10 As shown, the sound outlet hole 111 and the first sound guide hole 203 are connected to each other along the radial direction RD of the sound-emitting component 20, and the sound outlet hole 111 and the first sound guide hole 203 are respectively arranged in a strip shape, and the length direction of the sound outlet hole 111 and the first sound guide hole 203 is arranged along the circumferential direction of the sound-emitting component 20. Among them, the radial direction RD of the sound-emitting component 20 is a direction perpendicular to the axial direction (i.e., the direction of the axis Z), and the circumferential direction of the sound-emitting component 20 is a direction surrounding the axial direction (i.e., the direction of the axis Z).

[0082] By arranging the sound outlet hole 111 and the first sound inlet hole 203 into a strip shape, and arranging the length direction of the sound outlet hole 111 and the first sound inlet hole 203 along the circumference of the sound-emitting component 20, while ensuring the area of ​​the sound outlet hole 111 and the first sound inlet hole 203, the length of the sound outlet hole 111 and the first sound inlet hole 203 in the axial direction (i.e., the direction of the axis Z) is reduced, thereby improving the structural compactness of the sound-emitting component 20, reducing the volume of the earphone 1, and improving the wearing comfort of the earphone 1.

[0083] In this application, any description involving a physical / mathematical quantity (such as distance, ratio, area, length, width, thickness, etc.) between a certain numerical range may include the endpoint values ​​of the numerical range. For example, if a distance is between A and B, the value of the distance may be A, B, or a value between A and B. Therefore, the description of the numerical range "between" in the following content shall be understood and applied in accordance with the above description.

[0084] Alternatively, if Fig.11As shown, the spacing distance Z22 between the mounting edges of the diaphragms 22 of the two speakers 21 along the axial direction (i.e., the direction of the axis Z) is between 1.6 and 2.5 mm, for example, it can be 1.7 mm, 1.9 mm, 2.1 mm, 2.3 mm, etc., and of course it can also be other values. The mounting edge of the diaphragm 22 is the edge mounted on the basin frame 25. The radial dimension R21 of the first acoustic cavity 201 is between 7.5 and 9.5 mm, for example, it can be 7.8 mm, 8.1 mm, 8.5 mm, 8.8 mm, 9.1 mm, etc., and of course it can also be other values. Optionally, the areas of the sound outlet 111 and the first sound inlet 203 can be between 5 and 18 mm, respectively. 2 Optionally, the area of ​​the sound outlet hole 111 and the first sound guide hole 203 may be between 9 and 20 mm. 2 For example, the area of ​​the sound outlet hole 111 and the first sound guide hole 203 can be 6 mm 2 , 8mm 2 , 9mm 2 , 10mm 2 , 12mm 2 , 14mm 2 、17mm 2 、19mm 2 By reasonably setting the above dimensions, the structural compactness of the sound generating assembly 20 can be improved while the resonance peak of the first acoustic cavity 201 is moved toward high frequency, which is beneficial to improving the sound quality of the earphone 1.

[0085] Alternatively, if Fig.11 As shown, the end of the magnetic circuit system 24 away from the respective diaphragms 22 protrudes from the basin frame 25, and the radial dimension R22 of the protruding portion of the magnetic circuit system 24 relative to the basin frame 25 is smaller than the radial dimension R23 of the support position of the basin frame 25 for the diaphragm 22. Such a configuration can make the outer contour of the sound-generating component 20 closer to a sphere, which is convenient for improving the compactness and integration of the structure and effectively reducing the volume of the sound-generating component 20. The first accommodating cavity 110 can be configured to be approximately spherical in order to match the appearance of the earphone 1, so that the sound-generating component 20 is configured in such a way that it is convenient for the sound-generating component 20 to be assembled into the first accommodating cavity 110, effectively improving the space utilization rate of the first accommodating cavity 110, and effectively improving the assembly efficiency of the earphone 1. In addition, by configuring the outer contour of the sound-generating component 20 to be closer to a sphere, it is more suitable for the shape of the concha cavity E12, and then the space in the concha cavity E12 can be fully utilized, effectively improving the space utilization rate in the concha cavity E12.

[0086] Alternatively, if Fig.11As shown, the ratio of the axial dimension Z21 of the sound component 20 to the radial dimension R23 of the support position of the basin frame 25 for the diaphragm 22 is between 0.8 and 1.3, for example, the ratio can be 0.9, 1, 1.1, etc. Optionally, the ratio of the maximum axial dimension Z21 and the maximum radial dimension R20 of the sound component 20 is between 0.8 and 1.3 mm, and the ratio can be 0.9, 1, 1.1, etc. In this way, the axial dimension Z21 of the sound component 20 and the radial dimension R23 of the support position of the basin frame 25 for the diaphragm 22 are very close, so that the outer contour of the sound component 20 is closer to a sphere, which is convenient for better matching with the first accommodating cavity 110 which is approximately spherical, effectively improving the space utilization rate of the first accommodating cavity 110, effectively reducing the difficulty of assembly and improving the assembly efficiency. For example, the axial dimension Z21 of the sound component 20 is 9.5 mm, and the radial dimension R23 of the support position of the basin frame 25 to the diaphragm 22 is 8.1 mm, and the ratio between the two is about 1.17. For another example, the axial dimension Z21 of the sound component 20 is 9.5 mm, and the radial dimension R23 of the support position of the basin frame 25 to the diaphragm 22 is 8.8 mm, and the ratio between the two is about 1.08.

[0087] Optionally, in some embodiments, Fig.11 and Fig.12 As shown, the sound generating assembly 20 is provided with a mounting boss 271, the first sound guide hole 203 is provided on the mounting boss 271, and the mounting boss 271 abuts against the first housing 10 at the periphery of the sound outlet hole 111 (as shown in FIG. Figure 7 As shown), the first sound introduction hole 203 and the sound outlet hole 111 are isolated from the second acoustic cavity 202. Of course, in other embodiments, the mounting boss 271 is also provided on the first shell 10, but not on the sound-emitting assembly 20. Specifically, the first shell 10 is provided with a mounting boss 271, and the sound outlet hole 111 is provided on the mounting boss 271, and the mounting boss 271 abuts against the sound-emitting assembly 20 at the periphery of the first sound introduction hole 203, so that the first sound introduction hole 203 and the sound outlet hole 111 are isolated from the second acoustic cavity 202.

[0088] By setting the mounting boss 271, the first sound inlet hole 203 and the sound outlet hole 111 are isolated from the second acoustic cavity 202 while the connection between the first shell 10 and the sound-emitting component 20 is realized, thereby simplifying the structure and improving the isolation effect, thereby preventing the sound output from the first sound inlet hole 203 and the sound outlet hole 111 from being affected by the pressure relief of the second acoustic cavity 202 through the pressure relief hole 112, and improving the sound quality of the earphone 1.

[0089] Alternatively, if Fig.11 and Fig.12As shown, the sound-generating component 20 further includes a mounting bracket 27, and a mounting boss 271 is located on the mounting bracket 27. The mounting bracket 27 further includes a bracket body 272 connected to the mounting boss 271 along the circumference of the sound-generating component 20 and arranged in a ring-shaped shape. Two first support surfaces 2701 facing each other along the axial direction (i.e., the direction of the axis Z) are arranged on the bracket body 272. The outer end surfaces 250 of the two basin frames 25 close to the side of each diaphragm 22 are respectively supported on the corresponding first support surfaces 2701, and the mounting boss 271 protrudes from the bracket body 272 along the axial direction (i.e., the direction of the axis Z) and the radial direction RD of the sound-generating component 20, and is arranged on the outside of the outer circumferential surface of the two basin frames 25. Such an arrangement can ensure the structural strength of the mounting boss 271 while reserving sufficient space for the mounting boss 271 to set the first sound inlet hole 203, and the two basin frames 25 are respectively supported on the corresponding first supporting table surfaces 2701 to improve the stability of the structure, thereby effectively improving the stability and reliability of the overall structure of the sound-generating component 20.

[0090] Alternatively, if Fig.10 and Fig.12 As shown, the mounting bracket 27 can be a plastic molded part, and the radial thickness R24 of the mounting boss 271 is between 0.2 and 0.7 mm. Optionally, the radial thickness R24 of the mounting boss 271 can be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc., and of course, it can also be other values. The mounting boss 271 includes a connecting bridge 2723 that is arranged along the width direction of the first sound guide hole 203 and connects the long side hole edge 111c of the first sound guide hole 203. The first sound guide hole 203 is divided by the connecting bridge 2723 into at least two first sub-sound guide holes spaced from each other along the length direction of the first sound guide hole 203. The mounting bracket 27 can be, for example, injection molding, compression molding, etc., and of course it can also be made by other molding methods. Of course, in other embodiments, such as Fig.13 As shown, the mounting boss 271 may not be provided with the connecting bridge 2723, so that a larger first sound guide hole 203 can be obtained. Fig.12 For the example shown, Fig.13 The circumferential size of the first sound-introducing hole 203 can be appropriately reduced to maintain the structural strength, but since the connecting bridge 2723 is cancelled, the area of ​​the first sound-introducing hole 203 can still be increased, thereby improving the sound quality.

[0091] By reasonably setting the radial thickness R24 of the mounting boss 271, the radial dimension R20 of the sound-emitting component 20 is not excessively increased while ensuring the space for the first sound-introducing hole 203, thereby achieving the overall compactness of the earphone 1. The setting of the connecting bridge 2723 facilitates the molding of the mounting bracket 27 and effectively improves the connection strength of the mounting boss 271, thereby effectively improving the effectiveness and reliability of the sound-emitting component 20.

[0092] Optionally, in some embodiments, Fig.11 and 12 As shown, the bracket body 272 includes a supporting portion 2721 and a limiting portion 2722, the limiting portion 2722 is connected to the supporting portion 2721, the first supporting table 2701 is arranged on the supporting portion 2721, the limiting portion 2722 protrudes from the first supporting table 2701 along the axial direction (i.e., the direction of the axis Z), and is embedded in the basin frame 25 to limit the basin frame 25 along the radial RD of the sound-emitting component 20.

[0093] Of course, in other embodiments, the support body 272 may be provided with a recessed portion (not shown). In other words, the limiting portion 2722 is not convexly provided, but concavely provided, thereby forming a recessed portion, and part of the basin frame 25 is embedded in the recessed portion to limit the basin frame 25 along the radial direction RD of the sound generating assembly 20.

[0094] By setting a limiting portion 2722 or a recessed portion to limit the basin frame 25 in the radial direction RD of the sound component 20, the structure is simple and stable, easy to assemble and disassemble, and the assembly efficiency is improved while effectively improving the structural stability of the sound component 20.

[0095] Alternatively, if Fig.11 and Fig.12 As shown, sealants 28 are respectively arranged between the outer end surfaces 250 of the two basin frames 25 and the first support table surface 2701, and between the inner circumference of the mounting boss 271 and the outer circumference of the two basin frames 25. By arranging the sealants 28 at the above positions, the isolation effect of the first acoustic cavity 201 can be effectively improved, thereby improving the sound quality of the earphone 1, and the sealants 28 have good elasticity. When the mounting boss 271 and the first shell 10 are assembled and connected, the sealants 28 can undergo a certain elastic deformation to make them more fitted, thereby improving the stability and sealing of the connection between the mounting boss 271 and the first shell 10, which is conducive to improving the sound quality of the earphone 1.

[0096] Alternatively, if Fig.11 and Fig.14 As shown, the basin frame 25 is provided with a first cut corner 251 at a corner near the connection position between the outer circumference of the limiting portion 2722 and the first supporting table 2701 to form a first glue containing groove 252. The supporting portion 2721 is provided with a second cut corner 2702 at a corner near the connection position between the outer end surface 250 of the basin frame 25 and the outer circumference of the basin frame 25 to form a second glue containing groove 2703.

[0097] By setting the first cut angle 251 and the second cut angle 2702 to form the first glue containing groove 252 and the second glue containing groove 2703, the capacity of the sealant 28 is effectively increased, and while the sealing and isolation effects are improved, the glue overflow is effectively reduced, thereby effectively reducing the possibility of interference with other components, which is conducive to reducing the difficulty of assembly.

[0098] Alternatively, if Fig.11 As shown, the mounting boss 271 is provided with a third cut corner 2704 at a corner near the outer peripheral surface of the two basin frames 25 to form a third glue containing groove 2705. The provision of the third cut corner 2704 can further improve the glue containing amount and the isolation effect of the first acoustic cavity 201. Optionally, the second cut corner 2702 and the third cut corner 2704 are connected to each other, so that the second glue containing groove 2703 formed by the second cut corner 2702 and the third glue containing groove 2705 formed by the third cut corner 2704 can be interconnected, and then the glue can be applied continuously during the application, which effectively simplifies the process and improves the assembly efficiency.

[0099] Alternatively, if Fig.11 and Fig.14 As shown, the basin frame 25 is also provided with a second supporting table 253, which is located on the inner side of the outer end surface 250 of the basin frame 25 along the radial direction RD of the sound-emitting component 20, and is spaced apart from the outer end surface 250 of the basin frame 25 along the axial direction (i.e., the direction of the axis Z). The mounting edge of the diaphragm 22 is supported on the second supporting table 253, and the projection of the limiting portion 2722 along the axial direction (i.e., the direction of the axis Z) at least partially falls on the second supporting table 253.

[0100] The second support table 253 is provided to support the diaphragm 22, and the second support table 253 is located on the inner side of the outer end surface 250 of the basin frame 25 along the radial direction RD of the sound-emitting component 20, which is conducive to improving the connection stability of the diaphragm 22, thereby improving the reliability of the operation of the diaphragm 22. The limiting portion 2722 is arranged so that the projection along the axial direction (i.e., the direction of the axis Z) at least partially falls on the second support table 253, so as to achieve reasonable use of space and improve the utilization rate of space, and at the same time, it is conducive to increasing the size of the first acoustic cavity 201 in the radial direction RD of the sound-emitting component 20 while ensuring the connection stability, thereby improving the sound quality of the earphone 1.

[0101] Alternatively, if Figures 15 to 17As shown, the number of the second sound-introducing holes 204 is multiple and they are spaced apart along the circumference of the sound-emitting component 20, and a welding pad 26 located between two second sound-introducing holes 204 is provided on the basin frame 25. The distance from some of the second sound-introducing holes 204 to the pressure relief hole 112 is smaller than the distance from the welding pad 26 to the pressure relief hole 112. The welding pad 26 is used to receive electrical signals so that the speaker 21 performs corresponding work. By arranging multiple second sound-introducing holes 204 along the circumference of the sound-emitting component 20, the acoustic path of the sound output through the pressure relief hole 112 can be shortened, which is beneficial to improving the utilization rate of the volume of the second acoustic cavity 202, and is beneficial to improving the pressure relief efficiency and the sound quality of the earphone 1. Fig.15 The section corresponding to the section line U~U shown is the reference section SF.

[0102] Optionally, the distance from the above-mentioned part of the second sound-introducing holes 204 to the pressure relief hole 112 is not greater than 0.5 mm. Further optionally, the distance is not greater than 0.3 mm. If the distance from the second sound-introducing holes 204 to the pressure relief hole 112 is too large, it will lead to a reduction in the pressure relief performance, thereby affecting the sound quality of the earphone 1. By reasonably setting the distance from the part of the second sound-introducing holes 204 to the pressure relief hole 112, the pressure relief efficiency is effectively improved, which is conducive to improving the sound quality of the earphone 1.

[0103] Alternatively, if Fig.16 As shown, the second sound inlet hole 204 most adjacent to the pressure relief hole 112 is arranged relative to the welding pad 26 along the radial direction RD of the sound-emitting component 20. Such an arrangement can prevent the operation of the welding pad 26 and the pressure relief operation of the earphone 1 from interfering with each other, which is beneficial to improving the pressure relief performance of the earphone 1 and the sound quality of the earphone 1.

[0104] like Fig.16 and Fig.17 As shown, specifically, the two basin frames 25 are respectively provided with welding pads 26 and second sound guide holes 204 spaced apart from each other along the circumference of the sound generating assembly 20. Fig.12 and Fig.18 As shown, each basin frame 25 and mounting bracket 27 are provided with mutually matching limiting structures 200a, 200b, the limiting structures 200a, 200b are used to limit the basin frame 25 and the mounting bracket 27 along the circumference of the sound assembly 20, and the limiting structures 200a, 200b of the two basin frames 25 are relatively arranged along the axial direction (i.e., the direction of the axis Z). Optionally, as Fig.17 and Fig.18 As shown, the sound-generating component 20 has a radial plane RF arranged along the axial direction (i.e., the direction of the axis Z) and passing through the limiting structures 200a, 200b, the welding pad 26 on each basin frame 25 is mirror-set relative to the radial plane RF, and the sound-introducing holes on each basin frame 25 are respectively mirror-symmetrical relative to the radial plane RF.

[0105] The limiting structures 200a and 200b are used to limit the two basins 25 along the circumference of the sound-generating assembly 20, thereby preventing the two speakers 21 from rotating relative to each other, and effectively improving the structural stability and reliability of the sound-generating assembly 20. At the same time, by setting the soldering pads 26 and the second sound-introducing holes 204 on each basin 25 in mirror images relative to the radial plane RF, so that the directivity of the soldering pads 26 and the second sound-introducing holes 204 on the two basins 25 is consistent, the consistency of the acoustic characteristics of the two speakers 21 in the first accommodating cavity 110 is improved, which is beneficial to improving the sound quality of the earphone 1. In addition, by designing the structures of the two basins 25 to be highly consistent, the two speakers 21 can reuse the same basin 25 design, effectively reducing material costs and production costs.

[0106] Optionally, the number of the limiting structures 200a and 200b is only one group. When the basin frame 25 is arranged in a mirror-symmetrical manner with respect to the radial plane RF, the two basin frames 25 are relatively installed on one side of the limiting structure 200a during installation. Then, the soldering pads 26 on each basin frame 25 are also relatively arranged and located on the same side of the sound-emitting component 20, thereby further making the directivity of the soldering pads 26 on the two speakers 21 consistent, thereby improving the consistency of the acoustic characteristics of the two speakers 21 in the first accommodating cavity 110, which is beneficial to improving the sound quality of the earphone 1.

[0107] Optionally, combined Figure 7 , Fig.19 and Fig. 20 The first shell 10 may include a first hard shell 11 and a second hard shell 12 , the first hard shell 11 is connected to the ear hook 300 , the first hard shell 11 and the second hard shell 12 enclose a first accommodating cavity 110 , and the sound outlet 111 is arranged on the second hard shell 12 .

[0108] By setting the first hard shell 11 to be connected to the ear hook 300, and setting the sound hole 111 on the second hard shell 12, the integrity of the sound hole 111 is effectively guaranteed, and the possibility of interference with the sound hole 111 is reduced, thereby improving the stability and reliability of the sound hole 111, and reducing the difficulty of aligning the first hard shell 11 and the second hard shell 12, thereby reducing the difficulty of assembling the sound component 20 and improving the assembly efficiency of the sound component 20. Moreover, the sound hole 111 is set in this way without penetrating the first hard shell 11 and the second hard shell 12 at the same time, which can avoid the uneven surface of the sound hole 111, thereby affecting the installation of the tuning net and the steel net.

[0109] Alternatively, if Fig.19 and Fig. 20As shown, the second hard shell 12 is provided with a protrusion 123 protruding relative to the end surface 122 of the second hard shell 12, and the first hard shell 11 is provided with a groove 113 recessed relative to the end surface 114 of the first hard shell 11, the protrusion 123 is embedded in the groove 113, and the sound outlet 111 is partially provided on the protrusion 123. The connection between the first hard shell 11 and the second hard shell 12 is realized by providing the protrusion 123 and the groove 113, and the sound outlet 111 is partially provided on the protrusion 123, while ensuring the connection stability between the first hard shell 11 and the second hard shell 12, so that the sound outlet 111 has a sufficient length, which is conducive to improving the sound effect of the earphone 1 and the sound quality of the earphone 1.

[0110] Alternatively, if Fig.19 and Fig. 20 As shown, the mounting boss 271 is located on the sound assembly 20. Of course, the mounting boss 271 can also be located on the second hard shell 12. A third support table 115 is provided in the first hard shell 11, and the third support table 115 is used to support the sound assembly 20, so that when the first hard shell 11 and the second hard shell 12 are fixed to each other, the sound assembly 20 and the second hard shell 12 abut against each other through the mounting boss 271. Such a setting can simplify the structure and the assembly process, reduce the difficulty of assembly, and improve the assembly efficiency.

[0111] Alternatively, if Figure 7 As shown, when the sound-emitting component 20 and the second hard shell 12 are in contact with each other through the mounting boss 271, the end surface 114 of the first hard shell 11 and the end surface 122 of the second hard shell 12 can maintain a certain gap along the contact direction of the sound-emitting component 20 and the second hard shell 12. Such a configuration can ensure that when the first hard shell 11 and the second hard shell 12 are in contact with the sound-emitting component 20 to position and install it, a certain gap is maintained between the first hard shell 11 and the second hard shell 12 to offset the assembly error of the sound-emitting component 20, thereby effectively improving the accuracy and stability of the positioning and installation of the sound-emitting component 20. In addition, during the production and assembly process, the mounting boss 271 first contacts the sound-emitting component 20 and the second hard shell 12, and then the first hard shell 11 and the second hard shell 12 are buckled, thereby squeezing the sound-emitting component 20 and the second hard shell 12 to achieve further fixation, effectively improving the contact effect, and improving the connection stability of the earphone 1.

[0112] Optionally, the axial direction (i.e., the direction of the axis Z) may be perpendicular to the abutment direction of the sound generating assembly 20 and the second hard shell 12. Optionally, the magnetic circuit system 24 includes a magnetic shield 241 protruding from the basin frame 25 and a magnet 242 disposed in the magnetic shield 241. Figure 7 and Fig.19As shown, the third support table 115 is configured to respectively support the magnetic shields 241 of the two speakers 21. This configuration can achieve the installation and fixation of the sound generating assembly 20 without affecting the vibration of the diaphragm 22, and the structure is stable, which is conducive to improving the service life of the earphone 1.

[0113] Alternatively, if Fig. 9 and Fig.15 As shown, the sound outlet hole 111 and the pressure relief hole 112 are respectively arranged in mirror symmetry with respect to a symmetry plane SF arranged along the length direction of the ear hook 300 .

[0114] By arranging the sound outlet hole 111 and the pressure relief hole 112 which are respectively arranged in mirror symmetry with respect to the symmetry plane SF, the aesthetics of the earphone 1 is improved and the earphone 1 can be suitable for both the left ear and the right ear, thereby effectively improving the adaptability of the earphone 1.

[0115] Alternatively, if Figure 4 As shown, the earphone 1 also includes a microphone 30, and a sound inlet 101 for directing external sound to the microphone 30 is provided on the first shell 10, and the sound inlet 101 is arranged to intersect with the symmetry plane SF. The microphone 30 can be used to collect sound, so that the earphone 1 can adapt to different usage scenarios such as playing music and making calls, and the sound inlet 101 is arranged to intersect with the symmetry plane SF, while ensuring the effectiveness of the microphone 30 collecting sound through the sound inlet 101, so that the earphone 1 can be used for both the left ear and the right ear, effectively improving the adaptability of the earphone 1. Figure 4 The section corresponding to the cutting line V~V in is the symmetry plane SF.

[0116] Optionally, the number of microphones 30 can be set to one or more, for example, 1, 2, 4, etc. When the number of microphones 30 is one, the microphone 30 is arranged to intersect with the symmetry plane SF, and when the number of microphones 30 is multiple, the multiple microphones 30 are symmetrically distributed relative to the symmetry plane SF. Such a setting can further enable the earphone 1 to be used for both the left ear and the right ear, effectively improving the adaptability of the earphone 1.

[0117] Alternatively, if Fig.21 As shown, Fig.21 1 is a schematic diagram of the cross-sectional structure of the sound-emitting part 100 with the symmetry plane SF as the cross-section. The minimum spacing distance D10 between the sound-emitting hole 111 and the pressure-relieving hole 112 is between 6.5 and 10 mm. Optionally, the minimum spacing distance D10 is not less than 7 mm. Fig.21The cross section is the symmetry plane SF. Acoustic short circuit means that when the diaphragm 22 of the speaker 21 moves forward or backward, the sound waves generated are in opposite phases, causing these sound waves to cancel each other out, making the sound lighter or unnatural. If the above-mentioned spacing distance D10 is too short, acoustic short circuit may occur. By reasonably setting the spacing distance D10 between the sound outlet 111 and the pressure relief hole 112, the possibility of acoustic short circuit can be effectively reduced, which is beneficial to improving the sound quality of the earphone 1.

[0118] Alternatively, if Figure 1 and Fig.17 As shown, the pressure relief hole 112 is arranged toward the auricle, and the sound outlet hole 111 and the pressure relief hole 112 are separated from each other by the contact area between the first shell 10 and the ear EAR. The contact area can be the contact area between the first shell 10 and the antihelix or the concha cavity. The sound outlet hole 111 and the pressure relief hole 112 are separated by the first shell 10 and the contact area, which can effectively reduce the interference between the sound outlet hole 111 and the pressure relief hole 112, thereby effectively improving the reliability of the earphone 1, which is conducive to improving the sound quality of the earphone 1, and is suitable for both the left ear and the right ear of the user, and has high adaptability.

[0119] Alternatively, if Fig. 9 and Fig.21 As shown, the number of the sound outlet hole 111 is one, and it is arranged in a strip shape, and the symmetry plane is arranged along the length direction of the sound outlet hole 111, and is perpendicular to the axial direction (i.e., the direction of the axis Z). In this way, when the earphone 1 is worn by the user, since the first shell 10 and the concha cavity of the user's ear EAR are not completely fitted, but there is a space that gradually increases from the contact area between the first shell 10 and the ear EAR to the ear canal opening, the sound output by the sound outlet hole 111 will be reflected in the concha cavity and enhanced, so as to increase the sound pressure at the ear canal opening by using the reflection effect, so that the user can hear a stronger sound.

[0120] Alternatively, if Fig.15 and Fig.21 As shown, there is one pressure relief hole 112, which is arranged in a strip shape, and the symmetry plane SF is arranged along the width direction of the pressure relief hole 112 and perpendicular to the axis direction (i.e., the direction of the axis Z). This arrangement makes the pressure relief hole 112 as far away from the sound outlet hole 111 as possible, effectively reducing the possibility of acoustic short circuit, which is conducive to improving the sound quality of the earphone 1.

[0121] Alternatively, if Fig. 22As shown, the pressure relief hole 112 includes a first hole portion 1121 and a second hole portion 1122 along the length direction of the pressure relief hole 112, and a third hole portion 1123 connected between the first hole portion 1121 and the second hole portion 1122, wherein at least a partial width W1 of the first hole portion 1121 and a width of at least a partial position of the second hole portion 1122 are greater than a width W3 of the third hole portion 1123. The widths of the first hole portion 1121, the second hole portion 1122, and the third hole portion 1123 refer to the dimensions in the width direction perpendicular to the length direction of the pressure relief hole 112. Such a setting can effectively reduce the possibility of the pressure relief hole 112 being blocked by the auricle or other ear EAR positions while increasing the area of ​​the pressure relief hole 112, which is beneficial to improving the pressure relief effect, and further to improving the sound quality of the earphone 1. Moreover, such a setting, while maintaining the pressure relief effect, the pressure relief hole 112 as a whole does not need to be set according to the maximum width, so that the size is more moderate, which is also convenient for improving the aesthetics of the earphone 1.

[0122] Optionally, the symmetry plane SF is the symmetry plane of the ear hook 300. Specifically, the symmetry plane of the ear hook 300 is set along the length direction of the ear hook 300, and the difference between the parts of the ear hook 300 on both sides of the symmetry plane is minimal or consistent, that is, if the ear hook 300 is regularly symmetrical, then the parts of the ear hook 300 on both sides of the symmetry plane are consistent, if the ear hook 300 is not strictly symmetrical, then the difference between the ear hook 300 on both sides of the symmetry plane SF should be the smallest in various division methods, for example, the size of the difference can be distinguished by observing the projection of the ear hook 300 on a plane perpendicular to the symmetry plane.

[0123] Alternatively, if Fig.19 , 20 as well as Fig.23 As shown, the first shell 10 may further include a first flexible body 13. The first hard shell 11 and the second hard shell 12 enclose a first accommodating cavity 110, and the first flexible body 13 is arranged on the outer wall of the second hard shell 12 and is used to contact the concha cavity. The plane where the outermost loop line of the end face of the first flexible body 13 is located is the first reference plane S13, and the midpoint of the sound-emitting component 20 along the axis Z or the axis Z of the sound-emitting component 20 is located on the side of the first reference plane S13 facing the first hard shell 11 and is parallel to the first reference plane S13.

[0124] The hard material can be made of plastic, metal or other materials that can be used as support materials for the earphone 1 shell, so as to provide better support and stability for the internal structure of the first shell 10, such as the sound-emitting component 20. The first flexible body 13 covers the outer wall of the second hard shell 12. The first flexible body 13 can be made of silicone or other skin-friendly flexible materials to improve the comfort of the sound-emitting part 100 when in contact with the wearer. Usually when worn, the second hard shell 12 will face the wearer's concha cavity and will contact the wearer. By covering the first flexible body 13 on the outer wall of the second hard shell 12, the wearing comfort of the earphone 1 can be improved. In addition, by locating the midpoint of the sound-emitting component 20 along the axis Z or the axis Z of the sound-emitting component 20 on the side of the first reference plane S13 toward the first hard shell 11, the center of the entire sound-emitting component 20 can be closer to the first hard shell 11, that is, when the first flexible body 14 is arranged on the outer wall of the second hard shell 12, the centroid of the first shell 10 does not coincide with the centroid of the sound-emitting component 20, and the centroid of the sound-emitting component 20 is closer to the first hard shell 11 relative to the centroid of the first shell 10, thereby realizing the eccentric setting of the sound-emitting component 20, thereby making better use of the space inside the first hard shell 11, which is beneficial to improving space utilization.

[0125] Optionally, the midpoint of the sound component 20 along the axis Z or the distance D13 from the axis Z to the first reference plane S13 is between 0.4 and 4 mm. By setting the position of the sound component 20 in the first shell 10 in this way, more volume of the sound component 20 can be distributed toward the first hard shell 11, thereby making full use of the relatively ample internal space of the first hard shell 11, so that the first shell 10 can accommodate a larger sound unit.

[0126] Optionally, the sound-emitting part 100 is configured to keep the ear canal at least partially open in the concha cavity, reducing the possibility of blocking the ear canal and affecting the transmission of sound to the user's ear canal, and facilitating the reflection of sound in the user's concha cavity to increase the listening volume.

[0127] In some embodiments, optionally, Fig.11 As shown, the ratio of the maximum axial dimension Z21 to the maximum radial dimension R20 of the sound component 20 is between 0.8 and 1.3. Optionally, the ratio may be 0.9, 1, 1.1, 1.2, etc. In this way, the maximum axial dimension Z21 and the maximum radial dimension R20 of the sound component 20 are very close, so that the outer contour of the sound component 20 is closer to a sphere, effectively improving the structural compactness and integration of the sound component 20, effectively reducing the difficulty of assembly and improving assembly efficiency.

[0128] Optionally, the maximum radial dimension R20 of the sound-generating assembly 20 is set to the maximum radial dimension of the mounting bracket 27 or the basin frame 25, so that during assembly, the mounting bracket 27 or the basin frame 25 is used as the main force-bearing component to effectively protect the diaphragm 22 and the voice coil 23, and effectively improve the reliability and effectiveness of the sound-generating assembly 20. Optionally, the maximum axial dimension of the sound-generating assembly 20 is set to the maximum axial dimension between the magnetic shields 241 of the two speakers 21 along the axial direction (i.e., the direction of the axis Z).

[0129] Optionally, in some embodiments, the resonance peak frequency of the diaphragms 22 of the two speakers 21 is between 200 and 300 Hz, and the absolute difference in the resonance peak frequency of the diaphragms 22 of the two speakers 21 is less than or equal to 50 Hz. The resonance peak may be the first resonance peak that appears during the frequency sweep from low frequency to high frequency. Specifically, the resonance peak frequency refers to the frequency of the first resonance peak that appears in sequence from low to high frequency when performing an electroacoustic frequency sweep test on the structure in the sound-emitting part 100, such as the speaker 21, the first shell 10, and the internal cavity of the first shell 10. The position where the resonance peak appears corresponds to the position where the impedance curve of the sound-emitting part 100 suddenly increases.

[0130] By setting the speaker 21 with a resonant peak frequency within a reasonable range, the type and range of the sound range played by the speaker 21 is wider, and the sound quality is better not only in human voice but also in music playback. Moreover, the absolute difference between the resonant peak frequencies of the two speakers 21 is less than or equal to 50Hz, so that the consistency of the two speakers 21 is relatively high, and the sound quality of the earphone 1 is further improved.

[0131] In some embodiments, Fig.21 As shown, the sound outlet hole 111 is arranged in a strip shape, and has a first end 111a and a second end 111b arranged at intervals along the length direction of the sound outlet hole 111. In the wearing state, the first end 111a is arranged toward the ear hole E11, and the distance D10 between the outer wall surface of the first shell 10 at the second end 111b and the inner wall surface of the concha cavity E12 is smaller than the distance D10 between the outer wall surface of the first shell 10 at the first end 111a and the inner wall surface of the concha cavity E12.

[0132] By setting the first shell 10 so that the first end 111a of the sound outlet 111 faces the ear hole, so that the sound waves can enter the ear hole as much as possible through the sound outlet 111, and the transmission path of the sound waves is effectively shortened, the volume effect of the sound heard by the user is effectively improved, which is conducive to improving the sound quality of the earphone 1. In addition, by setting the distance D10 between the outer wall surface of the first shell 10 at the second end 111b and the inner wall surface of the concha cavity E12 to be smaller than the distance D10 between the outer wall surface of the first shell 10 at the first end 111a and the inner wall surface of the concha cavity E12, the curve formed by the outer ring of the speaker 21 cutting the first shell 10 and the concha cavity can form a wedge-shaped space, and when the sound outlet 111 is set along the curve, a horn structure can be formed between the sound outlet 111 and the concha cavity, and the concha cavity E12 can be used as a reflection wall surface to form a sound wave reflection enhancement, thereby effectively improving the sound pressure at the ear hole and effectively increasing the listening volume.

[0133] Alternatively, if Fig.21 As shown, at the second end 111b and / or the side of the second end 111b away from the first end 111a, the outer wall surface of the first housing 10 and the inner wall surface of the cavity concha are in contact with each other. Such an arrangement can block the sound from propagating in the direction away from the ear hole, and is more conducive to the first housing 10 and the cavity concha forming a horn structure that reflects the sound toward the ear hole, thereby helping to reduce the sound leakage of the earphone 1, effectively improve the sound pressure at the ear hole, and effectively increase the listening volume.

[0134] Alternatively, if Fig.21 As shown, the outer wall surface of the first shell 10 is arranged so that the long side hole edge 111c of the sound outlet hole 111 is arranged in an arc shape, and the distance D10 between the outer wall surface of the first shell 10 and the inner wall surface of the cavum concha gradually increases in the direction from the second end 111b to the first end 111a. Such an arrangement can make the sound reflected toward the ear hole in the horn structure formed between the cavum concha E12 and the outer wall surface of the first shell 10, rather than reflected in the direction away from the ear hole, effectively improving the sound effect of the earphone 1, effectively increasing the sound pressure at the ear hole, and effectively increasing the listening volume.

[0135] Alternatively, if Fig.21As shown, the arc-chord ratio of the long side hole edge 111c of the sound outlet hole 111 is between 1.05 and 1.4, for example, it can be 1.1, 1.2, 1.3, etc. Wherein, a symmetric plane is provided along the length direction of the ear hook 300, and the arc-chord ratio of the long side hole edge 111c of the sound outlet hole 111 is the arc-chord ratio of the projection profile of the long side hole edge 111c on the symmetric plane. In some embodiments, the arc length of the long side hole edge 111c of the sound outlet hole 111 is 10mm, and the chord length is 8.87mm. Optionally, the aspect ratio of the sound outlet hole 111 is between 0.15 and 0.30, for example, 0.18, 0.20, 0.25, etc. Optionally, the length of the sound outlet hole 111 can be between 9mm and 16.5mm, for example, 10mm, 12mm, 13mm, 14mm, 16mm, etc. In some embodiments, the inner width of the sound hole 111 is 1.95 mm, the outer width is 2.58 mm, and the length of the sound hole 111 is 12.9 mm. By reasonably setting the arc length, chord length, width and length of the long side hole edge 111c of the sound hole 111, the size of the sound hole 111 is more consistent with the size and shape of the concha cavity and the ear hole, which is more convenient to form a horn structure that enhances the sound, effectively improves the sound effect of the earphone 1, effectively increases the sound pressure at the ear hole, and effectively increases the listening volume.

[0136] Alternatively, if Fig.24 As shown, when the sound-emitting part 100 and the abutting part 400 are placed on a horizontal reference plane at the same time, the long side hole edge 111c of the sound-emitting hole 111 forms a first reference point M with the horizontal reference plane between the first end 111a and the second end 111b, the second end 111b is located on the side of the first reference point M facing the abutting part 400, and the first end 111a is located on the side of the first reference point M away from the abutting part 400. Such a configuration can make the first end 111a of the sound-emitting hole 111 closer to the ear hole, and the first shell 10 near the second end 111b can abut against the concha cavity and be clamped on both sides of the user's ear EAR with the abutting part 400, thereby achieving a stable clamping of the ear EAR while utilizing the concha cavity to increase the volume and sound pressure, and the portion of the first shell 10 abutting against the concha cavity can further block the sound from propagating in the direction away from the ear hole, which is conducive to reducing sound leakage.

[0137] Optionally, the length D12 of the long side edge 111c of the sound outlet hole 111 between the first end 111a and the first reference point M is between 2 and 5.5 mm, for example, it can be 2.55 mm, 3.56 mm, 4 mm, 4.76 mm, etc., and the length D13 of the long side edge 111c of the sound outlet hole 111 between the second end 111b and the first reference point M is between 4.5 and 8 mm, for example, it can be 5.53 mm, 6 mm, 6.73 mm, 7.81 mm, etc. The above lengths all indicate the distance between corresponding positions on the projection contour of the sound hole 111 on the symmetry plane. By reasonably setting the distance from the first end 111a and the second end 111b to the first reference point M, the enhancement effect of the propagation of sound waves in the concha cavity E12 to the ear hole is further improved, the sound pressure at the ear hole is effectively increased, and the listening volume is effectively increased.

[0138] Optionally, the arc-chord ratio of the long side hole of the sound outlet hole 111 between the first end 111a and the first reference point M is between 1.02 and 1.05, for example, it can be 1.03, 1.04, etc., and the arc-chord ratio of the long side hole of the sound outlet hole 111 between the second end 111b and the first reference point M is between 1.02 and 1.05, for example, it can be 1.03, 1.04, etc. The above arc-chord ratios all indicate the arc-chord ratios between corresponding positions on the projected contour of the sound hole 111 on the symmetry plane. By reasonably setting the arc-chord ratio of the long side hole edge 111c of the sound outlet hole 111 between the first end 111a and the second end 111b and the first reference point M, while adapting to the shape of the user's concha cavity to ensure wearing comfort, the sound reflection effect of the horn structure formed by the outer wall surface of the first shell 10 and the concha cavity is improved, and the listening volume and the user's sense of use are effectively improved.

[0139] Alternatively, if Fig.24 As shown, the long side hole edge 111c of the sound outlet hole 111 has a first normal direction F1 at the first reference point M, the long side hole edge 111c of the sound outlet hole 111 has a second normal direction F2 at the first end 111a, and the long side hole edge 111c of the sound outlet hole 111 has a third normal direction F3 at the second end 111b, the angle α1 between the first normal direction F1 and the second normal direction F2 is between 30° and 42°, and the angle α2 between the first normal direction F1 and the third normal direction F3 is between 50° and 60°. The angle α1 between the first normal direction F1 and the second normal direction F2 can be, for example, 32°, 35°, 37°, etc., and the angle α2 between the first normal direction F1 and the third normal direction F3 can be, for example, 53°, 55°, 57°, etc. The above angles all indicate the angles between corresponding positions on the projection contour of the sound hole 111 on the symmetry plane. By reasonably setting the above-mentioned angle, the sound reflection effect of the horn structure formed between the outer wall surface of the first shell 10 and the concha cavity is improved while ensuring the spatial size of the sound outlet 111, thereby effectively improving the listening volume and the user's experience.

[0140] Alternatively, if Fig. 9 As shown, the sound hole 111 has a median line arranged along its length direction, the sound hole 111 is arranged to intersect with the reference section SF arranged along the length direction of the ear hook 300, and the angle between the plane where the median line is located and the reference section SF is between 0 and 45 degrees, and the sound hole 111 is offset toward the earlobe. The median line can be a virtual curve that divides the sound hole 111 into two parts along the length direction. Preferably, the sound hole 111 is arranged to intersect with the reference section SF arranged along the length direction of the ear hook 300, and the angle between the plane where the median line is located and the reference section SF is between 15 degrees and 45 degrees, for example, it can be 20 degrees, 30 degrees, etc. In some embodiments, the reference section SF can coincide with the symmetry plane arranged along the length direction of the ear hook 300, so it is also marked as the symmetry plane SF when describing the symmetry plane later. In this way, the reference section SF can be arranged along the length direction of the ear hook 300, and the difference between the parts of the ear hook 300 on both sides of the reference section SF is minimal or consistent. Of course, in other embodiments, the reference cross section SF and the symmetry plane of the ear hook are parallel to each other, but may be offset by a small interval.

[0141] By reasonably setting the angle between the center line of the sound hole 111 and the reference cross-section SF of the ear hook 300, the sound hole 111 is set to be biased toward the earlobe, so that the sound output by the sound hole 111 is transmitted to the ear hole as much as possible while ensuring the wearing comfort of the user, thereby effectively improving the usability of the earphone 1. Specifically, when the user wears the earphone 1 naturally, the earphone 1 may deflect downward under the action of gravity as the user moves. Such a setting can ensure that the sound hole 111 is as much as possible facing the ear hole even when the earphone 1 is deflected, thereby effectively increasing the listening volume of the user when the earphone 1 is in a deflected state, thereby improving the user's usability.

[0142] Optionally, the plane where the midline is located coincides with the reference section SF. Alternatively, the sound outlet 111 is mirror-symmetrical with respect to the reference section SF. This arrangement allows the earphone 1 to be worn and used by both the left ear and the right ear, effectively improving the adaptability of the earphone 1 while ensuring the wearing comfort of the user.

[0143] Alternatively, if Fig.25As shown, on the reference cross section SF, the sound-emitting portion 100 has a second reference point N closest to the abutting portion 400. In some embodiments, in the natural state, the sound-emitting portion 100 and the abutting portion 400 are not directly abutted, then the second reference point N is the intersection of the shortest line between the sound-emitting portion 100 and the abutting portion 400 and the outer wall surface of the sound-emitting portion 100, and the midpoint of the shortest line is O. In other embodiments, in the natural state, the sound-emitting portion 100 and the abutting portion 400 just abut or the abutting area is very small, then the abutting point between the sound-emitting portion 100 and the abutting portion 400 is considered to be the second reference point N. In some other embodiments, in the natural state, the abutting area between the sound-emitting portion 100 and the abutting portion 400 is relatively large, then on the reference cross section SF, the midpoint of the arc corresponding to the abutting area between the outer wall surface of the sound-emitting portion 100 and the abutting portion 400 is the second reference point N.

[0144] The inner contour of the ear hook 300 in the wearing state has a third reference point C farthest from the second reference point N in the area near the edge of the helix, and the sound hole 111 is located on the side of the second reference point N farthest from the third reference point C, and on the outer wall surface of the sound-emitting part 100, the distance D13 from the second end 111b to the second reference point N is between 2.2 and 4.2 mm, and the distance from the first end 111a to the second reference point N is between 9 and 12.4 mm. The distance from the second end 111b to the second reference point N can be, for example, 2.3 mm, 2.6 mm, 2.9 mm, etc., and the distance from the first end 111a to the second reference point N can be 9.8 mm, 10.7 mm, 11.6 mm, etc., and of course it can also be other values. The above distances all indicate the distances between corresponding positions on the projected contour of the sound hole 111 on the symmetry plane.

[0145] Alternatively, if Fig.15 As shown, the pressure relief hole 112 is arranged toward the helix and intersects with the reference section SF. Such an arrangement can effectively reduce the possibility of interference between the pressure relief hole 112 and the sound outlet hole 111 while ensuring the pressure relief effect of the pressure relief hole 112, thereby effectively improving the stability and reliability of the earphone 1.

[0146] Alternatively, if Figure 1 and Fig.21 As shown, the pressure relief hole 112 and the sound outlet hole 111 are separated from each other by the contact area between the sound-emitting part 100 and the ear EAR (e.g., the concha cavity). The sound outlet hole 111 and the pressure relief hole 112 are separated by the sound-emitting part 100 and the contact area, which can effectively reduce the possibility of acoustic short circuit between the sound outlet hole 111 and the pressure relief hole 112, thereby effectively improving the reliability of the earphone 1, which is conducive to improving the sound quality of the earphone 1, and is suitable for both the left and right ears of the user, and has high adaptability.

[0147] Alternatively, if Fig.15As shown, there is one pressure relief hole 112 in a strip shape, and the reference section SF is arranged along the width direction of the pressure relief hole 112. This arrangement ensures the pressure relief area to effectively ensure the pressure relief effect of the pressure relief hole 112, while making the pressure relief hole 112 not extend too much in the direction of the ear hook 300, which is conducive to improving the aesthetics of the earphone 1.

[0148] Alternatively, if Fig.15 As shown, the pressure relief hole 112 is mirror-symmetrical with respect to the reference section SF, which improves the aesthetics of the earphone 1 while allowing the earphone 1 to be worn on both the left ear and the right ear, thereby effectively improving the adaptability of the earphone 1.

[0149] Alternatively, if Figures 15 to 17 As shown, the sound-generating component 20 is provided with at least one second sound-introducing hole 204 connected to the pressure relief hole 112 via the first accommodating space, and the distance between the at least one second sound-introducing hole 204 and the pressure relief hole 112 is not greater than 0.5 mm. Optionally, the distance is not greater than 0.4 mm, and optionally, the distance is not greater than 0.3 mm. If the distance from the sound-introducing hole to the pressure relief hole 112 is too large, the pressure relief performance will be reduced, thereby affecting the sound quality of the earphone 1. By reasonably setting the distance from the sound-introducing hole to the pressure relief hole 112, the pressure relief efficiency can be effectively improved, which is beneficial to improving the sound quality of the earphone 1.

[0150] Alternatively, if Figure 4 , Figures 19 to 21 As shown, the earphone 1 also includes a microphone 30, and a sound inlet hole 101 for directing external sound to the microphone 30 is provided on the first shell 10, and the sound inlet hole 101 is arranged to intersect with the reference cross section SF. The microphone 30 can be used to collect sound, so that the earphone 1 can adapt to different usage scenarios such as playing music and making calls, and the sound inlet hole 101 is arranged to intersect with the reference cross section SF, while ensuring the effectiveness of the microphone 30 collecting sound through the sound inlet hole 101, so that the earphone 1 can be used for both the left ear and the right ear, effectively improving the adaptability of the earphone 1. Figure 4 The section corresponding to the cutting line V~V in is the reference section SF.

[0151] Optionally, the ear hook 300 provides an elastic force between the sound-emitting portion 100 and the abutting portion 400, so that the sound-emitting portion 100 and the abutting portion 400 have a clamping force F that clamps the two sides of the auricle in the wearing state. Fig.26 As shown, the ear hook 300 is arranged so that the sound-emitting portion 100 and the abutting portion 400 abut against each other in a natural state to form a preload force F0.

[0152] When the ear hook 300 is worn, it can undergo a certain elastic deformation to exert a certain elastic force on both sides of the user's ear helix. Under the action of the elastic force, the sound-emitting portion 100 and the contact portion 400 contact the two sides of the auricle to clamp the ear. However, if the elastic force provided by the ear hook 300 is too large, the clamping force F is too large, which will cause discomfort to the ear. If it is too small, the clamping force F is too small, which makes it difficult to wear stably.

[0153] It can be known from Hooke's law that the elastic force generated by elastic deformation is proportional to the deformation of the object, and the ratio is the elastic coefficient. In order to meet the needs of clamping ears with smaller thickness, the elastic coefficient of the ear hook 300 is usually set to be larger, but this will result in excessive elastic force when the clamped ear thickness is larger, causing pain, and the wearing comfort is not high. In addition, the large elastic coefficient causes a large change in the clamping force F when adapting to ears of different thicknesses, which in turn leads to a large difference in the clamping force F, resulting in a large difference in user experience and low compatibility. Fig. 27 As shown, the clamping force variation line L1 has no pre-tightening force and a large elastic coefficient, resulting in the distance between the sound-generating portion 100 and the abutting portion 400 changing from X to s Change to X m The clamping force F is relatively large, and the clamping force variation △F1 varies greatly. Based on this, by setting the ear hook 300 so that the sound-emitting part 100 and the abutting part 400 abut against each other in a natural state to form a pre-tightening force, the elastic coefficient of the ear hook 300 can be reduced, so that when clamping ears with smaller thickness and thicker thickness, the elastic force applied by the ear hook 300 varies less, effectively reducing the difference in clamping force F between ears with smaller thickness and thicker thickness, effectively improving the adaptability and wearing comfort of the earphone 1, so that the earphone 1 can be worn by users with more ear sizes. Fig. 27 As shown, relative to the clamping force variation line L1, the clamping force variation line L2 is based on the preload force F0, and the distance between the sound generating part 100 and the contact part 400 is changed from X to s Change to X m The clamping force F is small, and the clamping force change △F2 is also small, so the above-mentioned technical effects can be effectively achieved, such as reducing the difference in clamping force F between ears with smaller clamping thickness and ears with larger clamping thickness, effectively improving the adaptability and wearing comfort of the earphone 1, so that the earphone 1 can be worn by users with more ear sizes.

[0154] After a lot of empirical research conducted by the applicant to improve the wearing comfort of the earphone 1, it was found that the ear thickness of people with small ears is X s It is about 3.8mm, and the ear thickness of people with big ears is X m After obtaining this data, the applicant conducted corresponding research on the earphone 1 in terms of preload force and elastic coefficient.

[0155] Optionally, the elastic coefficient of the ear hook 300 is set so that when the minimum interval between the sound-emitting portion 100 and the abutting portion 400 increases from 3.8 mm to 5.5 mm, the change in the elastic force is less than or equal to 20 gf, for example, 5 gf, 10 gf, or 15 gf. Fig. 27 As shown, on the basis of the preload force F0, the distance between the sound generating part 100 and the abutting part 400 is X m When the clamping force F is small, the clamping force change △F2 is also small.

[0156] By reasonably setting the elastic coefficient, the elastic force can have a small change while meeting the clamping requirements, so that when the earphone 1 clamps ears with larger thickness and smaller thickness, the clamping force provided by the ear hook 300 has a small difference, thereby effectively improving the adaptability of the earphone 1 while meeting the wearing comfort.

[0157] Optionally, the elastic coefficient and preload force of the ear hook 300 are set so that when the minimum interval between the sound-emitting part 100 and the abutment part 400 increases from 3.8 mm to 5.5 mm, the elastic force is between 25 g-f and 65 g-f, for example, 30 g-f, 40 g-f, 50 g-f, etc.

[0158] By reasonably setting the elastic coefficient and preload of the ear hook 300 to provide a suitable elastic force, a suitable clamping force F is provided to the user when the ear hook 300 is worn, thereby ensuring wearing stability and improving wearing comfort.

[0159] like Fig.28 As shown, the preload force F0 can be measured by a thin film pressure sensor 600, specifically, by clamping the thin film pressure sensor 600 between the abutment portion 400 and the sound-generating portion 100. In other embodiments, such as Fig.29 and Fig.30 The preload force F0 can also be measured by the tension meter / sensor 607, 613, for example, by fixing one of the sounding part 100 and the abutting part 400 and pulling the other of the sounding part 100 and the abutting part 400 so that the two are just in contact / separated, or the minimum distance between the two is a small distance, the measured tension is the preload force. The small distance is, for example, 0 to 0.8 mm.

[0160] like Fig.29 and Fig.30 As shown, the clamping force F can be measured when the sounding part 100 and the abutting part 400 are arranged horizontally, specifically by fixing the abutting part 400 with a tension meter / sensor and pulling the sounding part 100 for measurement. For example, after the wire is bonded to the shell of the sounding part 100, the wire displacement is pulled, for example, 3.8 mm to 5.5 mm for measurement.

[0161] like Fig.29 As shown, the auxiliary plate 603 and the angle bracket 601 are fixed in the X direction (no relative displacement occurs in the X direction) by adhesive (e.g., quick-drying glue, hot melt adhesive, etc.) or other fixing methods that do not damage the structure of the earphone 1, and the auxiliary plate 604 and the angle bracket 602 are fixed in the X direction (no displacement occurs in the X direction), and the auxiliary plate 603 and the auxiliary plate 604 are placed on a support surface with a small friction coefficient in the X direction (e.g., a lubricating oil interface or a support surface on a bearing support). The inner side of the angle bracket 601 in the Y direction and the inner side of the angle bracket 602 in the Y direction are tangent to the two sides of the earphone 1 near the two ends of the ear hook 300, respectively, so that the earphone 1 is fixed between the angle bracket 601 and the angle bracket 602. The dynamometer 607 is connected to the angle bracket 602 in the X direction, for example, the dynamometer 607 and the angle bracket 602 are fixed by screws 606. In some embodiments, the earphone 1 can be further fixed by adhesive (e.g., quick-drying glue, hot melt glue, etc.) or other fixing methods that do not damage the structure of the earphone 1, so that the connection positions of the earphone 1 and the two corner brackets 601 and 602 are close to the horizontal direction. Fig.29 As shown, one side of the sound-generating part 100 is fixedly connected to the angle code 601 at position A, and one side of the abutting part 400 is fixedly connected to the angle code 602 at position B, and the line between position A and position B is roughly parallel to the X direction. During measurement, the auxiliary plate 604 is fixed, and the auxiliary plate 603 is moved with a pulling force in the X direction, so that the sound-generating part 100 and the abutting part 400 are pulled apart, and the magnitude of the pulling force is obtained by the dynamometer 607, and the distance between the auxiliary plate 603 and the auxiliary plate 604, that is, the distance between the sound-generating part 100 and the abutting part 400, is obtained by a vernier caliper.

[0162] like Fig.30 As shown, the abutting part 400 is fixed between the two clamping plates by a fastener 608, one end of the force measuring line 612 is connected to the shell of the sound-emitting part 100 away from the abutting part 400 by an adhesive (for example, quick-drying glue, hot melt adhesive, etc.) (for example, the force measuring line 612 is connected to the sound-emitting part 100 at the C position, and the symmetry plane SF of the ear hook 300 can pass through the C position), and the other end of the force measuring line 612 is connected to the force measuring instrument 614. The force measuring line 612 is parallel to the X direction. During measurement, the force measuring instrument 614 is moved by the tension in the X direction, thereby pulling the sound-emitting part 100 to move, so that the sound-emitting part 100 and the abutting part 400 are pulled apart, and the distance between the sound-emitting part 100 and the abutting part 400 is obtained by the vernier caliper 609, and the magnitude of the tension is obtained by the force measuring instrument 14.

[0163] Optionally, the preload force is set to be between 1 gram-force and 25 grams-force, and the elastic coefficient of the ear hook 300 is set to be between 25 grams-force and 48 grams-force when the minimum interval is 3.85 mm, and between 26 grams-force and 65 grams-force when the minimum interval is 5.5 mm. Optionally, the width of the ear hook 300 can be between 3 and 10 mm, and the thickness can be between 0.5 and 5 mm. By reasonably setting the width and thickness parameters of the ear hook 300, the elastic force changes basically linearly under the use scenario, and while satisfying the clamping stability, the wearing comfort is effectively improved, and the adaptability, wearing stability and reliability of the headset 1 are effectively improved.

[0164] Alternatively, if Fig.26 As shown, the earphone 1 may also include a magnetic coupling matching structure 50, which provides a magnetic coupling force between the sound-emitting part 100 and the abutting part 400. The magnetic coupling force and the elastic force cooperate to form a clamping force F. The change trend of the magnetic coupling force with the minimum interval between the sound-emitting part 100 and the abutting part 400 is opposite to the change trend of the elastic force with the minimum interval. For example, when the minimum interval between the sound-emitting part 100 and the abutting part 400 gradually increases, the elastic force gradually increases, and the magnetic coupling force gradually decreases. The magnetic coupling force provided by the magnetic coupling matching structure 50 can be used in the case where the ear hook 300 makes the sound-emitting part 100 and the abutting part 400 abut against each other in a natural state, and can also be used in the case where the ear hook 300 is set to separate the sound-emitting part 100 and the abutting part 400 from each other in a natural state.

[0165] By setting up a magnetic coupling matching structure 50 to provide a magnetic coupling force, the magnetic coupling force can be coordinated with the elastic force to provide a more appropriate clamping force F in the wearing state, and can effectively reduce the change and fluctuation of the clamping force F when the minimum spacing changes, thereby effectively improving the wearing comfort and reducing the pre-tightening force required by the ear hook 300, making the user's wearing process smoother.

[0166] Alternatively, if Fig.31As shown, the magnetic coupling matching structure 50 includes a first magnetic coupling matching member 51 disposed on the sound-emitting portion 100 and a second magnetic coupling matching member 52 disposed on the abutting portion 400, and the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 are magnetically attracted to each other. The first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 can be magnets, and the first magnetic coupling matching member on the sound-emitting portion 100 can be the magnet 242 of the speaker 21, or can be an additional magnet or other magnetic member. By respectively arranging the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 on the sound-emitting portion 100 and the abutting portion 400, the magnetic coupling force is provided by utilizing the magnetic attraction between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52, so that when clamping the ear EAR with a larger or smaller thickness, the clamping force with a small fluctuation and a moderate size is maintained, and the wearing comfort is effectively improved. Optionally, the magnets can be arranged in a Halbach array to increase the provided magnetic force, which is conducive to improving the wearing stability. Optionally, the magnet is disposed in the first flexible body 14 to avoid interference with other components and to improve the integration and compactness of the structure of the earphone 1.

[0167] In the wearing state, the attraction between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 can compensate for the clamping force F between the sound-emitting portion 100 and the abutting portion 400. Fig.31 As shown, the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 can attract each other, generating an attraction force FA to compensate for the clamping force F provided by the ear hook 300 to the sound-emitting part 100 and the abutting part 400. That is, in the wearing state, the clamping force F includes the attraction force F A and the elastic force F generated by the elastic deformation of the ear hook 300 k In some embodiments, the relationship between the distance and the attraction between the first magnetic coupling matching component 51 and the second magnetic coupling matching component 52 can be expressed by formula (1):

[0168]

[0169] Where K is a constant, m 1 It can represent the magnetic moment of the first magnetic coupling matching member 51, m 2 can represent the magnetic moment of the second magnetic coupling matching member 52, d can represent the distance between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52, and X 0 may represent the distance between the first magnetic coupling matching component 51 and the second magnetic coupling matching component 52 in the non-wearing state, and x may represent the increased distance between the first magnetic coupling matching component 51 and the second magnetic coupling matching component 52 in the wearing state due to the movement of the sound emitting part 100 and the abutting part 400 .

[0170] It can be seen from formula (1) that the larger the distance increase X between the sound-generating part 100 and the abutting part 400 is, the larger the distance d between the first magnetic coupling matching part 51 and the second magnetic coupling matching part 52 is, and the attraction force F between the first magnetic coupling matching part 51 and the second magnetic coupling matching part 52 is. A Reduce accordingly.

[0171] In some embodiments, a force gauge and pads of different thicknesses (e.g., silicone pads, thick paper sheets, rubber pads, etc.) can be used to measure the different attractive forces corresponding to different distances between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52. For example, the ear hook 300 of the earphone 1 can be cut off, and then any one of the sound-emitting portion 100 and the abutting portion 400 can be fixed, and the other one of the sound-emitting portion 100 and the abutting portion 400 can be connected to the force gauge. The sound-emitting portion 100, the abutting portion 400 and the force gauge can be roughly referred to Fig.29 and Fig.30 . Pads of different thicknesses are placed between the sound-emitting portion 100 and the abutting portion 400 to control the distance between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52, and at the same time, the force gauge is used to measure the attraction between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 when pads of different thicknesses are placed. In some embodiments, the attraction can be measured by a thin film pressure sensor. Specifically, after cutting off the ear hook 300, a thin film pressure sensor and pads of different thicknesses are placed between the sound-emitting portion 100 and the abutting portion 400, so that the thin film pressure sensor is squeezed by the attraction between the first magnetic coupling matching member 51 in the sound-emitting portion 100 and the second magnetic coupling matching member 52 in the abutting portion 400, thereby measuring the attraction corresponding to different distances between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52.

[0172] In some embodiments, in the non-wearing state, the ear hook 300 can provide a preload force F0 to make the sound-emitting part 100 and the abutment part 400 abut against each other. The detailed description of the preload force can be found in the above related description, which will not be repeated here.

[0173] In some embodiments, in the non-wearing state, the sounding part 100 does not contact the abutting part 400. In the non-wearing state, the sounding part 100 does not contact the abutting part 400, that is, there is no pre-tightening force between the sounding part 100 and the abutting part 400 to make them abut each other.

[0174] In some embodiments, in the wearing state, the clamping force F between the sound-emitting portion 100 and the abutting portion 400 includes the elastic force F generated by the elastic deformation of the ear hook 300. k The attraction F between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52 A In some embodiments, the clamping force F may also include a pre-tightening force F0 provided by the ear hook 300 for the abutment between the sound-emitting portion 100 and the abutment portion 400 .

[0175] As can be seen from the foregoing, in order to ensure the stability of the earphone 1 when worn on the wearer's ear, the clamping force F (i.e., the sum of the elastic force and the attractive force, or the sum of the elastic force, the attractive force and the preload force) needs to be greater than the lower limit of the clamping force corresponding to the minimum auricle thickness. In addition, it is necessary to ensure that the clamping force is less than the upper limit of the clamping force corresponding to the maximum auricle thickness to avoid the ear clip earphone causing discomfort to users with thick auricles. In some embodiments, when the distance between the shell of the sound-emitting part 100 and the abutment part 400 is between 3.5 mm and 5.6 mm or 3.8 mm and 5.5 mm, the clamping force F (i.e., the sum of the elastic force and the attractive force, or the sum of the elastic force, the attractive force and the preload force) can be between 0.20 N and 0.70 N. For example, the clamping force (i.e., the sum of the elastic force and the attractive force, or the sum of the elastic force, the attractive force, and the preload) provided by the ear hook 300 can be determined to be between 0.20N and 0.70N based on the clamping force lower limit of 0.20N corresponding to the minimum auricle thickness and the clamping force upper limit of 0.70N corresponding to the maximum auricle thickness. In some embodiments, when the distance between the shell of the sound-emitting part 100 and the abutment part 400 is between 3.8mm and 5.5mm, the clamping force F (i.e., the sum of the elastic force and the attractive force, or the sum of the elastic force, the attractive force, and the preload) can be between 0.25N and 0.65N. For another example, the clamping force (i.e., the sum of the elastic force and the attractive force, or the sum of the elastic force, the attractive force, and the preload) provided by the ear hook 300 can be determined to be between 0.25N and 0.65N based on the clamping force lower limit of 0.25N corresponding to the minimum auricle thickness and the clamping force upper limit of 0.65N corresponding to the maximum auricle thickness.

[0176] As can be seen from the above, the larger the distance X between the sound-emitting portion 100 and the abutting portion 400 is, the greater the elastic force F provided by the ear hook 300 is. k The larger the value, the greater the attraction F between the first magnetic coupling matching member 51 and the second magnetic coupling matching member 52. A The smaller it is, the difference between the clamping force F experienced by small-ear users and the clamping force F experienced by large-ear users can be further reduced based on the attraction between the first magnetic coupling matching component 51 and the second magnetic coupling matching component 52. For example, the clamping force F is limited to between 0.3N and 0.5N, that is, the difference between the clamping force experienced by small-ear users and the clamping force experienced by large-ear users is reduced to 0.20N at the same time. In some embodiments, when the distance between the shell of the sound-emitting part 100 and the abutment part 400 is between 3.8mm and 5.5mm, the change in the clamping force F does not exceed 0.20N. It can be seen from this that Fig. 27 As shown, in order to ensure that the difference between the clamping force on the small-eared user and the clamping force on the large-eared user is small, the minimum auricle thickness Xs, the set clamping force lower limit F1, the maximum auricle thickness Xs, and the clamping force on the large-eared user can be set. mThe set clamping force upper limit F3 limits the change of the clamping force to, for example, no more than 0.20 N (ie, the difference between F3 and F1) when the distance between the sound-emitting portion 100 and the abutting portion 400 varies between 3.8 mm and 5.5 mm.

[0177] In some embodiments, when the distance between the sound-emitting portion 100 and the abutting portion 400 is between 3.8 mm and 5.5 mm, the attraction between the first magnetic coupling matching component 51 and the second magnetic coupling matching component 52 may vary between 0.05 N and 0.10 N.

[0178] like Fig.32 As shown, the clamping force F includes the elastic force F k and attraction F A The initial distance between the first magnetic coupling matching component 51 and the second magnetic coupling matching component 52 is X 0 . Elastic force F k = kX, where k is the elastic coefficient and X is the distance between the sound generating part 100 and the contact part 400. A It can be calculated based on the above formula (1). The distance between the sound-emitting part 100 and the contact part 400 is X 1 To X 2 When the elastic force F k In F sk to F mk Between, attraction F A In F ma to F sa The clamping force F is between F s to F m Among them, F s =F ma +F sk , F m =F mk +F sa For example, when the distance between the sound-emitting part 100 and the contact part 100 is between 3.8 mm and 5.5 mm, the corresponding elastic force is between 0.27 N and 0.35 N. In order to ensure that the clamping force is between 0.3 N and 0.4 N, the attractive force to be compensated is between 0.03 (0.3 to 0.27 = 0.03) N and 0.05 (0.4 to 0.35 = 0.05) N. As can be seen from the figure, by setting appropriate magnetic coupling parameters (K, m1, m2, X 0 ) and elastic coefficient k, etc., that is, it can be achieved in X 1 ~X 2 Within the range of F k The increment and decrement of FA roughly offset each other or mostly offset each other, making the total clamping force F at X 1 ~X 2The earphone 1 remains basically stable within a certain range, so that the user experience brought by the earphone 1 to users with different auricle thicknesses is consistent. 1 ~X 2 The range includes, for example, 3.8 mm to 5.5 mm.

[0179] In some embodiments, the ear hook 300 further provides a preload force F0, which can be adjusted by adjusting the preload force F0 and the attraction force F A The size of the clamping force F is adjusted to keep the total clamping force F within an appropriate range. Fig.33 As shown, the ear hook 300 can provide elastic force F at the same time. k , preload F0 and attraction F A At this time, the clamping force F of the ear hook 300 for the user with large ears has exceeded the upper limit of the pre-tightening force. The pre-tightening force F0 can be reduced from F01 to F02 to make the clamping force F within the minimum auricle thickness X s and maximum auricle thickness X m In the range of , the curve corresponding to the clamping force F is relatively gentle, and in the appropriate clamping force range, it shows that the combination of preload force and attraction force can improve the wearing stability and comfort of ear clip headphones, and reduce the difference in clamping force between large-ear users and small-ear users.

[0180] Optionally, the elastic force and the magnetic coupling force are set so that when the minimum interval between the sound-emitting part 100 and the abutting part 400 increases from 3.85 mm to 5.5 mm, the clamping force is between 25 g-f and 65 g-f, for example, 30 g-f, 40 g-f, 50 g-f, 60 g-f, etc. It should be noted that 1 g-f represents the gravity exerted on an object of 1 gram.

[0181] By reasonably setting the elastic force and the magnetic coupling force, a consistent clamping force is provided for users with different ear sizes when worn, thereby improving wearing comfort while ensuring wearing stability.

[0182] Optionally, the magnetic coupling force is set so that when the minimum interval between the sound-emitting portion 100 and the abutting portion 400 increases from 3.8 mm to 5.5 mm, the change in the magnetic coupling force is greater than or equal to 20 grams of force. This setting can make the change in the magnetic coupling force relatively large, and the change in the elastic force can be relatively small, so that the elastic coefficient of the ear hook 300 can be set relatively small, which is conducive to improving the stability and reliability of the earphone 1 when worn.

[0183] Alternatively, if Fig.34As shown, the ear hook 300 includes an elastic sheet 301, and the two ends of the elastic sheet 301 along the length direction thereof are fixed relatively to the sound-emitting portion 100 and the abutting portion 400, respectively. The ratio of the width W31 to the thickness K31 of the elastic sheet 301 is 8 to 12, for example, 9, 10, 11, etc. In some embodiments, the width W31 of the elastic sheet 301 is between 1 and 3 mm, for example, 2 mm, and the thickness K31 is between 0.1 and 0.3 mm, for example, 0.15 mm, 0.2 mm, 0.25 mm, etc.

[0184] By providing an elastic sheet 301 to provide an elastic force, the earphone 1 can be clamped and worn, and by reasonably setting the ratio of width to thickness, the ear hook 300 is ensured to have sufficient strength while meeting the elastic force requirement, so that the earphone 1 has both wearing comfort and wearing stability. In addition, reasonably setting the width and thickness of the elastic sheet 301 can reduce the torque on the elastic sheet 301 and prevent twisting, and also make the change of the elastic force provided more linear, effectively improving the wearing comfort. The elastic sheet 301 can be, for example, a titanium sheet, the outside of which is coated with a flexible material, such as silicone, rubber, elastic resin, polyurethane material, polydimethylsiloxane, PVC, TPE and other materials, to improve wearing comfort.

[0185] Optionally, the earphone 1 further includes a flexible printed circuit (FPC), wherein the flexible printed circuit is arranged along the length direction of the elastic sheet 301 and is disposed on the elastic sheet 301, based on which the wiring difficulty on the earphone 1 can be effectively reduced. For example, the FPC can be extended and disposed roughly along the upper surface or the lower surface of the elastic sheet 301. Connector blocks 2332 can be provided at both ends of the elastic sheet 301, and the connector blocks 2332 at both ends can be respectively connected to the sound-emitting part 100 and the abutment part 400. The elastic sheet 301 is provided with a notch 2330 that penetrates the side edge of the elastic sheet 301 along the width direction at a position close to the connector block 2332. The notch 2330 facilitates sealing and makes the injection molding effect better.

[0186] Alternatively, if Fig.35 As shown, the earphone 1 has a reference cross section SF, which is arranged along the length direction of the ear hook 300, wherein the reference cross section is nearly parallel to the horizontal plane of the human body when worn. Within the reference cross section, the ear hook 300, the sound emitting portion 100 and the abutting portion 400 have an inner contour, wherein the inner contour includes at least reference point C, reference point E and reference point H.

[0187] In the wearing state, the reference point C is a reference point located on the inner contour of the ear hook 300 and corresponding to the edge of the helix (e.g., the topmost / outermost edge of the helix), and the reference point C may be a turning point of the inner contour, for example, the inner contour 300 is a contour line that protrudes away from the helix E17 as a whole. The radius of curvature of the part of the inner contour 300 located in the vicinity of the edge of the helix first gradually increases, then gradually decreases, and then gradually increases again, starting from the reference point C toward the sounding portion 300 and the abutting portion 400.

[0188] In some embodiments, in a natural state, the outer wall surface of the sound-emitting part 210 and the outer wall surface of 400 do not abut each other, and the outer wall surface of the sound-emitting part 100 and the outer wall surface of the abutting part 400 have a position with the shortest distance, and the midpoint of the line between the positions with the shortest distance between the two is point 0. If the outer wall surface of the sound-emitting part 210 and the outer wall surface of 400 abut each other in a natural state, the length of the shortest line between the outer wall surface of the sound-emitting part 210 and the outer wall surface of 400 is close to 0, and the reference point O should be the midpoint of the arc formed by the abutment area where the outer wall surface of the sound-emitting part 210 abuts the outer wall surface of 400. Reference point C is the reference point in the inner contour that is the farthest from point O. Reference point L is the position point of the sound-emitting part 100 that is closest to reference point C. Reference point K is the position point of the sound-emitting part 100 that is farthest from reference point C.

[0189] Alternatively, if Fig.35 As shown, a line CE is formed between reference point C and reference point E, and a line CH is formed between reference point C and reference point H. In a natural state, the length of line CE is between 16 and 19 mm, the length of line CH is between 6.5 and 9.0 mm, the angle between line CE and line CH is between 72° and 88°, the inner contour between reference point C and reference point E is located outside line CE, and the inner contour between reference point C and reference point H is located outside line CH.

[0190] In the experience of wearing and using the ear clip type earphone 1, if the inner contour of the earphone 1 contacts the auricle, it will greatly affect the wearing comfort of the earphone 1 during long-term use and affect the wearer's experience.

[0191] If the angle between the connection line CE and the connection line CH is too small, the inner contour of the earphone 1, especially the inner contour between the reference point C and the reference point E and the inner contour between the reference point C and the reference point H, will not be able to bypass the helix as much as possible. If it is too large, the overall structural size of the earphone 1 will be increased, affecting the overall aesthetics of the earphone 1. Therefore, the angle between the connection line CE and the connection line CH is set within the range of 72° to 88°, so as to ensure that the inner contour of the earphone 1 can bypass the helix as much as possible, reduce the contact between the inner contour of the earphone 1 and the helix, and effectively improve the wearing comfort and aesthetics of the earphone 1. For example, in some embodiments, the angle between the connection line CE and the connection line CH can be set to 80°.

[0192] Furthermore, if the length of the connection line CE is too small, the sound-emitting part 100 may not be able to extend into the concha cavity, affecting the sound quality of the earphone 1, or the inner contour of the earphone 1, especially the position at the reference point C may contact the auricle after the sound-emitting part 100 extends into the concha cavity. If the length of the connection line CE is too large, the overall structural size of the earphone 1 may be increased, affecting the aesthetics of the earphone 1. Therefore, setting the length of the connection line CE within the range of 16 to 19 mm can ensure that the sound-emitting part 100 stably extends into the concha cavity while ensuring that the inner contour and the sound-emitting part 100 do not contact the auricle E17, thereby effectively improving the wearing comfort and aesthetics of the earphone 1200 while effectively improving the sound transmission quality of the earphone 1. Furthermore, if the length of the connection line CH is too small, the abutment portion 400 may contact the helix, and if it is too large, the overall structural size of the earphone 1 may be increased, affecting the aesthetics of the earphone 1. Therefore, setting the length of the connection line CH to 6.5 to 9.0 mm can better ensure that the inner contour of the earphone 1 can bypass the helix as much as possible, so as to ensure that the inner contour of the earphone 1 and the abutment portion 400 do not contact the helix, thereby effectively improving the wearing comfort of the earphone 1. For example, in some embodiments, the length of the connection line CE is set to 17.13 mm, and the length of the connection line CH is set to 7.59 mm.

[0193] Optionally, the arc-chord ratio of the inner contour between the reference point C and the reference point E is between 1.02 and 1.20. Optionally, the arc-chord ratio of the inner contour between the reference point C and the third reference point H is between 1.05 and 1.23.

[0194] Specifically, the arc-chord ratio of the inner contour between reference point C and reference point H specifically refers to the ratio of the actual length of the inner contour between reference point C and reference point H to the length of the connecting line CE. For example, in some embodiments, the inner contour is a curved contour, and the arc ratio of the inner contour between reference point C and reference point E is the ratio of the arc length of the inner contour between reference point C and reference point E to the length of the connecting line CE. It is worth noting that in this embodiment, the inner contour between reference point C and reference point E is a continuous arc protruding away from the connecting line CE. In other embodiments, the inner contour may not be set as a curve, and it may also be a multi-segment broken line, etc.

[0195] If the arc-chord ratio of the inner contour between reference point C and reference point E is too small, the inner contour between reference point C and reference point E will be relatively straight, which is not conducive to the inner contour between reference point C and reference point E bypassing the helix. If the arc-chord ratio of the inner contour between reference point C and reference point E is too large, the inner contour between reference point C and reference point E will be too curved, affecting the overall aesthetics of the earphone 1. Therefore, the arc-chord ratio of the inner contour between reference point C and reference point E is set within the range of 1.02 to 1.20, so that the inner contour between reference point C and reference point E bypasses the helix as much as possible and does not contact the helix, thereby effectively improving the wearing comfort of the earphone 1 and the aesthetics of the earphone 10. For example, in some embodiments, the arc-chord ratio between reference point C and reference point E can be set to 1.1.

[0196] Optionally, between reference point L and reference point K and on the side facing the abutment 400, the arc-chord ratio of the outer wall surface of the sound-emitting portion 100 is between 1.4 and 1.7. Based on this setting, the sound-emitting portion 100 is more spherical on the side facing the abutment 400. Among them, between reference point L and reference point K and on the side facing the abutment 400, the outer wall surface of the sound-emitting portion 100 is a continuous arc-shaped surface convex toward the side of the abutment 400. For example, in some embodiments, between reference point L and reference point K and on the side facing the abutment 400, the arc-chord ratio of the outer wall surface of the sound-emitting portion 100 can be set to 1.64.

[0197] Optionally, a line CL is formed between reference point C and reference point L, line CL is located between line CE and line CH, a length of line CL is between 13 and 17 mm, and an angle between line CL and line CE is between 15° and 27°.

[0198] Specifically, the reference point L is a special point on the sound-emitting part 100 that is closest to the reference point C. Therefore, the angle between the line CL and the line CE determines to a certain extent whether the sound-emitting part 100 can be fully placed in the concha cavity 1, and the length of the line CL determines to a certain extent whether the inner contour of the earphone 1 can not contact the helix when the sound-emitting part 100 is fully placed in the concha cavity 1. Therefore, the length of the line CL is set between 13 and 17 mm, and the angle between the line CL and the line CE is set between 15° and 27°. Based on this, the sound-emitting part 100 can be fully placed in the concha cavity without contacting or squeezing the helix, thereby effectively improving the wearing comfort of the earphone 1 and the sound transmission quality of the earphone 1. For example, in some embodiments, the length of the third line is set to 15 mm, and the angle between the line CL and the line CE is set to 21°.

[0199] Optionally, a line CK is formed between reference point C and reference point K, line CK is located between line CE and line CH, the length of line CK is between 24 and 30 mm, and the angle between line CK and line CE is between 13° and 25°.

[0200] When the earphone 1 is in the wearing state, the reference point K is closest to the ear hole. If the reference point K is too close to the ear hole, the ear hole will be blocked, affecting the user experience. If the reference point K is too far away from the ear hole, the sound transmission effect of the earphone 1 will be affected. Therefore, the length of the connection line CK is set in the range of 24 to 30 mm, and the angle between the connection line CK and the connection line CE is set in the range of 13° to 25°. Based on this, when the sound-emitting part 100 is extended into the concha cavity, the area of ​​the sound-emitting part 100 near the reference point K maintains a relatively moderate distance from the ear hole, thereby effectively preventing the sound-emitting part 100 from blocking the ear hole and effectively improving the sound transmission effect of the earphone 1. For example, in some embodiments, the length of the connection line CK can be set to 27.7 mm, and the angle between the connection line CK and the connection line CE can be set to 20°.

[0201] Alternatively, if Fig.35 As shown, along the inner contour, there is an arc segment T1T2 between two points on both sides of the reference point C and 6 mm away from the reference point C, and the arc-chord ratio of the arc segment T1T2 is between 1.03 and 1.10. Such a setting can effectively reduce stress concentration, effectively improve the service life and reliability of the ear hook 300, and help ensure the wearing stability of the earphone 300.

[0202] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A headset, characterized in that: The earphone includes a sound-emitting part, a butting part and an ear hook, wherein the ear hook connects the sound-emitting part and the butting part, and the ear hook provides an elastic force between the sound-emitting part and the butting part so that the sound-emitting part and the butting part have a clamping force on both sides of the auricle when worn, wherein the ear hook is configured so that the sound-emitting part and the butting part abut against each other in a natural state to form a pre-tightening force.

2. The earphone according to claim 1, characterized in that The elastic coefficient of the ear hook and the preload force are set so that when the minimum interval between the sound-emitting part and the abutment part increases from 3.8 mm to 5.5 mm, the change in the elastic force is less than or equal to 20 grams of force.

3. The earphone according to claim 2, characterized in that The elastic coefficient of the ear hook and the preload force are set so that when the minimum interval between the sound-emitting part and the abutting part increases from 3.8 mm to 5.5 mm, the elastic force is between 25 g-f and 65 g-f.

4. The earphone according to claim 3, characterized in that: The preload force is set to be between 1 gram-force and 25 grams-force, and the elastic coefficient of the ear hook is set so that when the minimum interval is 3.85 mm, the elastic force is between 25 grams-force and 48 grams-force, and when the minimum interval is 5.5 mm, the elastic force is between 26 grams-force and 65 grams-force.

5. The earphone according to claim 1, characterized in that The earphone also includes a magnetic coupling matching structure, which provides a magnetic coupling force between the sound-emitting part and the abutment part. The magnetic coupling force and the elastic force cooperate to form the clamping force. The change trend of the magnetic coupling force with the minimum interval between the sound-emitting part and the abutment part is opposite to the change trend of the elastic force with the minimum interval.

6. The earphone according to claim 5, characterized in that The magnetic coupling matching structure includes a first magnetic coupling matching piece arranged on the sound-generating part and a second magnetic coupling matching piece arranged on the abutting part, and the first magnetic coupling matching piece and the second magnetic coupling matching piece are magnetically attracted to each other.

7. The earphone according to claim 5, characterized in that The elastic force and the magnetic coupling force are configured so that when the minimum interval between the sound-generating portion and the abutting portion increases from 3.85 mm to 5.5 mm, the clamping force is between 25 g-f and 65 g-f.

8. The earphone according to claim 7, characterized in that: The magnetic coupling force is configured such that when the minimum interval between the sound-emitting portion and the abutting portion increases from 3.8 mm to 5.5 mm, a change in the magnetic coupling force is greater than or equal to 20 g-force.

9. The earphone according to claim 1, characterized in that The ear hook comprises an elastic sheet, two ends of which along the length direction are fixed relatively to the sound-generating part and the abutting part respectively, and a ratio of the width to the thickness of the elastic sheet is 8-12.

10. The earphone according to claim 1, characterized in that In a reference cross-section arranged along the length direction of the ear hook, the ear hook, the sound-emitting portion and the abutting portion have an inner contour, the inner contour has a first reference point located on the ear hook and corresponding to the edge of the helix, the inner contour also has a second reference point located on the side of the first reference point facing the sound-emitting portion and a third reference point located on the side of the first reference point facing the abutting portion, a first connecting line is formed between the first reference point and the second reference point, and a second connecting line is formed between the first reference point and the third reference point, in a natural state, the length of the first connecting line is between 16 and 19 mm, the length of the second connecting line is between 6.5 and 9.0 mm, the angle between the first connecting line and the second connecting line is between 72° and 88°, the inner contour between the first reference point and the second reference point is located outside the first connecting line, and the inner contour between the first reference point and the third reference point is located outside the second connecting line.

11. The earphone according to claim 10, characterized in that The arc-chord ratio of the inner contour between the first reference point and the second reference point is between 1.02 and 1.20; the arc-chord ratio of the inner contour between the first reference point and the third reference point is between 0.85 and 1.

23.

12. The earphone according to claim 10, characterized in that The sound-emitting portion has a fourth reference point closest to the first reference point and a fifth reference point farthest from the first reference point. Between the fourth reference point and the fifth reference point and toward the abutting portion, an arc-to-chord ratio of an outer wall surface of the sound-emitting portion is between 1.4 and 1.

7.

13. The earphone according to claim 12, characterized in that A third line is formed between the first reference point and the fourth reference point, the third line is located between the first line and the second line, the length of the third line is between 13 and 17 mm, and the angle between the third line and the first line is 15° to 27°; and / or, a fourth line is formed between the first reference point and the fifth reference point, the fourth line is located between the first line and the second line, the length of the fourth line is between 24 and 30 mm, and the angle between the fourth line and the first line is 13° to 25°.

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