Ear clip type earphone

Abstract

The present specification discloses an ear clip type earphone, comprising: a sound production part which is configured to be located in a conchae of a wearer and to be in contact with the inner wall of the conchae in a wearing state, the sound production part comprising: a housing having an accommodating cavity; the sound production assembly is accommodated in the accommodating cavity, and the sound production assembly is used for converting the electric signal into a sound signal and playing the sound signal; the sound outlet hole is formed in the shell and is configured to lead out the sound generated by the sound production assembly; the abutting part is configured to abut against the back side of the auricle of the wearer in the wearing state, and a battery is arranged in the abutting part; the ear hook is configured to bypass the antihelix and the helix of a wearer in a wearing state, is connected to the sound production part and the abutting part, and provides clamping force for clamping the sound production part and the abutting part on the two sides of the auricle; in a non-wearing state, the ear hook provides a pre-tightening force to enable the sound production part and the abutting part to abut against each other.

Description

[0001] Cross-references

[0002] This application is based on Chinese patent application CN202311701969.7, filed on December 11, 2023; PCT international application PCT / CN2024 / 076377, filed on February 6, 2024; PCT international application PCT / CN2024 / 076495, filed on February 6, 2024; and PCT / CN2024 / 076378, filed on February 6, 2024. The application claims priority to the above seven patent applications, the entire contents of which are incorporated herein by reference. The application also includes PCT international application No. PCT / CN2024 / 076388, filed on February 6, 2024; PCT international application No. PCT / CN2024 / 076389, filed on February 6, 2024; and Chinese patent application No. CN2024101723779, filed on February 6, 2024. Technical Field

[0003] This manual relates to the field of headphones, and in particular to a clip-on headphone. Background Technology

[0004] Headphones are widely used in people's daily lives, and can be used with electronic devices such as mobile phones and computers to provide users with sound playback functions. Among them, clip-on headphones are a new type of headphone, which can be used by clamping force onto the wearer's ear helix. However, the clamping force increases with the thickness of the ear, meaning that the thicker the ear, the greater the clamping force.

[0005] Therefore, it is desirable to provide an ear clip-on headphone that can reduce the difference in clamping force experienced by wearers with small ears and large ears, thereby improving the comfort of wearers with ear thicknesses. Utility Model Content

[0006] One aspect of this specification provides an ear-clip earphone, comprising: a sound-emitting part configured, in a wearing state, to be located in and in contact with the inner wall of the concha of a wearer; the sound-emitting part including: a housing having a receiving cavity; a sound-emitting component housed within the receiving cavity, the sound-emitting component being used to convert electrical signals into sound signals and play them; a sound outlet located on the housing and configured to conduct the sound generated by the sound-emitting component; a contact portion configured to abut against the back of the wearer's auricle in a wearing state, the contact portion having a battery disposed therein; and an ear hook configured, in a wearing state, to bypass the wearer's antihelix and auricle, connected to the sound-emitting part and the contact portion, and providing clamping force for the sound-emitting part and the contact portion to clamp against both sides of the auricle; in a non-wearing state, the ear hook provides a preload force to abut against the contact portion.

[0007] In some embodiments, the ear hook has a first plane of symmetry, the shell is projected onto the first plane of symmetry to form a first projection, the abutment portion is projected onto the first plane of symmetry to form a second projection, and the ear hook is projected onto the first plane of symmetry to form a third projection, the third projection including an inner contour curve; wherein, the first projection and the second projection are in contact, and between the first projection and the second projection, the first projection and the second projection have a first common tangent line, the first common tangent line being tangent to both the first projection and the second projection at a first tangent point, the first tangent point being used as a first feature point; or, the first projection and the second projection have an overlapping area, at which the outer contour of the first projection and the outer contour of the second projection have two intersection points, the midpoint of the line connecting the two intersection points being used as a first feature point; the point on the inner contour curve farthest from the first feature point is used as a second feature point; the line connecting the first feature point and the second feature point is defined as a first connecting line, a first auxiliary line is drawn through the second feature point towards the side biased towards the first projection, the first included angle between the first auxiliary line and the first connecting line has a first preset value range, the first preset value range being 27°-37°, or greater than 37° and less than or equal to 50° inner contour curve. The intersection of the curve segment connected to the first projection and the first auxiliary line is defined as the third feature point. The line connecting the third feature point and the second feature point is defined as the second connecting line. The portion of the inner contour curve corresponding to the second connecting line has a first arc length. The ratio between the first arc length and the length of the second connecting line is defined as the first arc-chord ratio, which is 1.10-1.25, or greater than or equal to 1.05 and less than 1.10. A second auxiliary line is drawn from the second feature point toward the side biased towards the second projection. The second included angle between the second auxiliary line and the first connecting line has a second arc-chord ratio. The preset value range is 34°-49°, or greater than or equal to 20° and less than 34°. The intersection of the curve segment connected to the second projection and the second auxiliary line on the inner contour curve is defined as the fourth feature point. The line connecting the fourth feature point and the second feature point is defined as the third line. The part of the inner contour curve corresponding to the third line has a second arc length. The ratio between the second arc length and the length of the third line is defined as the second arc-chord ratio. The second arc-chord ratio is 1.11-1.24, or greater than 1.24 and less than or equal to 1.40.

[0008] In some embodiments, the point on the first projection closest to the second feature point is designated as the fifth feature point, the line connecting the fifth feature point and the second feature point is designated as the fourth line, the extension of the fourth line intersects the first projection at the sixth feature point, the line connecting the fifth feature point and the sixth feature point is defined as the fifth line, the curve segment of the first projection corresponding to the fifth line has a third arc length, the ratio of the third arc length to the length of the fifth line is defined as the third arc-chord ratio, the third arc-chord ratio is 1.4-1.7, or the third arc-chord ratio is greater than 1.7 and less than or equal to 1.8.

[0009] In some embodiments, the abutment portion contacts the sound-emitting portion while the hand is holding the abutment portion and the sound-emitting portion is freely placed with the sound-emitting portion facing the ground in the direction of gravity.

[0010] In some embodiments, the preload is between 0.01N and 0.25N.

[0011] In some embodiments, the elastic modulus of the ear hook is between 0.01 N / mm and 0.24 N / mm.

[0012] In some embodiments, when the distance between the housing of the sound-emitting part and the abutment part varies between 3.8 mm and 5.5 mm, the clamping force is between 0.1 N and 0.2 N.

[0013] In some embodiments, when the distance between the housing of the sound-emitting part and the abutment part is 5.5 mm, the clamping force is between 0.14 N and 0.2 N.

[0014] In some embodiments, when the distance between the housing of the sound-generating part and the abutment part varies between 3.8 mm and 5.5 mm, the change in clamping force does not exceed 0.20 N.

[0015] In some embodiments, the ear hook includes a titanium sheet and a flexible layer wrapped around the outside of the titanium sheet. A housing and an abutment are respectively connected to two ends of the titanium sheet in the length direction. The width of the titanium sheet is between 1.5 mm and 3 mm, and the thickness is between 0.15 mm and 0.3 mm.

[0016] In some embodiments, a flexible body is provided on the area of ​​the housing that abuts against the abutment portion.

[0017] In some embodiments, a first magnet is provided in the sound-emitting part and a second magnet is provided in the abutting part. The first magnet and the second magnet attract each other to compensate for the clamping force provided by the sound-emitting part and the abutting part.

[0018] Another aspect of this specification provides an ear-clip earphone, comprising: a sound-emitting part configured, in a wearing state, to be located in the concha cavity of the wearer and in contact with the inner wall of the concha cavity; the sound-emitting part comprising: a housing having a receiving cavity; a sound-emitting component housed within the receiving cavity; a sound outlet located on the housing and configured to transmit sound generated by the sound-emitting component; an abutment configured, in a wearing state, to abut against the back of the wearer's auricle; and an ear hook configured, in a wearing state, to bypass the wearer's antihelix and auricle, connect the sound-emitting part and the abutment, and provide clamping force for the sound-emitting part and the abutment to be clamped on both sides of the auricle; wherein, a first magnet is provided in the sound-emitting part, and a second magnet is provided in the abutment, the first magnet and the second magnet attract each other to compensate for the clamping force provided by the ear hook for the sound-emitting part and the abutment. Attached Figure Description

[0019] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0020] Figure 1 This is a schematic diagram of the external structure of an ear clip-on headphone according to some embodiments of this specification;

[0021] Figure 2 These are schematic diagrams illustrating the wearing of clip-on headphones according to some embodiments of this specification;

[0022] Figure 3 This is a cross-sectional structural diagram of an ear clip-on headphone according to some embodiments of this specification;

[0023] Figure 4 This is an exemplary schematic diagram of preload force according to some embodiments of this specification;

[0024] Figure 5 These are exemplary schematic diagrams illustrating the acquisition of preload according to some embodiments of this specification;

[0025] Figure 6A and Figure 6B This is an exemplary schematic diagram illustrating the determination of two tensile forces and corresponding two distances according to some embodiments of this specification;

[0026] Figure 7 This is an exemplary schematic diagram illustrating, according to some embodiments of this specification, a preload force fitted based on two tension forces and two corresponding distances;

[0027] Figure 8 This is an exemplary schematic diagram illustrating clamping forces according to some embodiments of this specification;

[0028] Figure 9 This is an exemplary schematic diagram illustrating the linear variation of clamping force according to some embodiments of this specification;

[0029] Figure 9A This is an exemplary schematic diagram showing the linear variation of clamping force according to other embodiments of this specification;

[0030] Figure 10 is a structural schematic diagram of an ear clip-on headphone according to some embodiments of this specification;

[0031] Figure 11 This is an exemplary schematic diagram of a first magnet and a second magnet in an ear clip-on headphone according to some embodiments of this specification;

[0032] Figure 12This is an exemplary schematic diagram of an ear clip-on headphone in a non-wearing state, according to some embodiments of this specification;

[0033] Figure 13A and Figure 13B This is an exemplary schematic diagram showing the variation of clamping force provided by the ear hook, the first magnet, and the second magnet, according to some embodiments of this specification;

[0034] Figure 14 This is a schematic projection of an ear clip-on headphone shown in some embodiments of this specification on a first plane of symmetry. Detailed Implementation

[0035] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0036] It should be understood that the terms "system," "device," "unit," and / or "module" as used in this specification are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0037] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0038] Flowcharts are used in this specification to illustrate the operations performed by the system according to embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0039] Figure 1 This is a schematic diagram of the external structure of an ear clip-on headphone according to some embodiments of this specification. Figure 2This is a schematic diagram illustrating the wearing of clip-on headphones according to some embodiments of this specification. Clip-on headphones in this specification may include, but are not limited to, bone conduction headphones, air conduction headphones, and bone-air conduction headphones. In some embodiments, clip-on headphones may be combined with products such as eyeglasses, headphones, head-mounted displays, and AR / VR headsets.

[0040] like Figure 1 and 2 As shown, the clip-on earphone 100 may include a sound-emitting part 1, a contact part 2, and an ear hook 3.

[0041] The sound-emitting part 1 is a sound playback device that can convert electrical signals into sound signals and play them to the wearer. Figure 3 These are schematic diagrams of the sound-generating part according to some embodiments of this specification, such as... Figure 3 As shown, the sound-generating part 1 may include a housing 11, a sound-generating assembly 12, and a sound outlet 13. The housing 11 may have a receiving cavity 111 for at least accommodating the sound-generating assembly 12. The sound-generating assembly 12 is capable of converting electrical signals into sound signals; for example, it may include one or more speakers. The sound outlet 13 may be located on the housing 11 and is configured to discharge the sound generated by the sound-generating assembly 12.

[0042] The housing 11 can be a sphere, cuboid, cylinder, trapezoid, L-shaped, U-shaped, V-shaped, or any irregular shape. In some embodiments, the housing can be made of plastic, metal, or other supporting materials that can be used as the headphone housing to provide more stable support for the internal components of the housing 11 (such as the sound-generating component 12).

[0043] The abutment portion 2 can cooperate with the sound-generating portion 1 to form a clamping device for clamping the ear clip-on headphones onto the wearer's ear helix. In some embodiments, the abutment portion 2 can serve as a battery compartment for installing batteries or other components. In some embodiments, the battery can be installed in the sound-generating portion 1.

[0044] Ear hook 3 is used to connect the sound-producing part 1 and the abutment part 2. For example... Figure 2 As shown, in the wearing state, the sound-emitting part 1 is configured to be located in the concha 401 of the wearer and to contact the inner wall of the concha 401; the abutment part 2 is configured to abut against the back side of the auricle 404 of the wearer; the ear hook 3 can be configured to bypass the antihelix 403 and helix 402 of the wearer, connect the sound-emitting part 1 and the abutment part 2, and provide a clamping force for the sound-emitting part 1 and the abutment part 2 to hold the auricle 404 on both sides. Figure 1 As shown, in the non-wearing state, the ear hook 3 can provide pre-tightening force to the sound-emitting part and the abutting part, so that the sound-emitting part 1 and the abutting part 2 can abut against each other.

[0045] In some embodiments, such as Figure 2As shown, a flexible body 112 may be provided on the area of ​​the housing 11 that abuts against the abutment portion 2. The area abutting against the abutment portion 2 refers to the area on the housing 11 that is in contact with the abutment portion 2 when not worn. When the earbuds are worn, the area on the housing 11 that abuts against the abutment portion 2 is in contact with the inner wall of the concha. In some embodiments, the flexible body 112 may be made of silicone or other skin-friendly flexible materials to improve the comfort of the sound-emitting part 1 when in contact with the wearer.

[0046] In some embodiments, the ear hook 3 can be symmetrically arranged, and the ear hook 3 has a first symmetry plane S1. In some embodiments, in the wearing state, the first symmetry plane S1 can be parallel to the horizontal plane. In some embodiments, the first symmetry plane S1 can be located at the midpoint of the width direction of the ear hook 3. The first symmetry plane S1 can divide the ear hook 3 into two mutually symmetrical parts located on both sides of the first symmetry plane S1 along the length direction of the ear hook 3 (i.e., the extension direction from the end of the ear hook 3 connecting to the sound-emitting part 1 to the end of the ear hook 3 connecting to the abutment part 2).

[0047] Figure 14 This is a schematic projection of an ear clip-on headphone shown in some embodiments of this specification on a first plane of symmetry. For example... Figure 14 As shown, the sound-emitting part 1 forms a first projection 1' on the first symmetry plane S1, the abutting part 2 forms a second projection 2' on the first symmetry plane S1, and the ear hook 3 forms a third projection 3' on the first symmetry plane S1. In some embodiments, the first projection 1' has a lowest point A, the second projection 2' has a lowest point B, and the first projection 1' and the second projection 2' have a common tangent line Q1 passing through points A and B. The tangent line Q1 is tangent to the first projection 1' at point A and tangent to the second projection 2' at point B.

[0048] For ease of understanding, the following explanation assumes that the earphone 100 is placed on a horizontal plane and the first plane of symmetry S1 is perpendicular to the horizontal plane. The contact point between the sound-emitting part 1 and the horizontal plane is point A, and the contact point between the abutting part 2 and the horizontal plane is point B. That is, the sound-emitting part 1 is tangent to the horizontal plane at point A, and the abutting part 2 is tangent to the horizontal plane at point B. At this time, Figure 14 The straight line Q1 containing points A and B can be considered as the projection of the horizontal plane onto the first plane of symmetry S1. Line Q1 is tangent to both the first projection 1' at point A and the second projection 2' at point B. The first plane of symmetry S1 is parallel to... Figure 14 The plane containing the paper shown.

[0049] In some embodiments, the third projection 3' includes an inner contour curve and an outer contour curve. The inner contour curve corresponds to the side of the ear hook 3 closest to the auricle when worn, and the outer contour curve corresponds to the other side of the ear hook 3 furthest from the auricle when worn. On the first projection 1', with point A as the dividing point, the portion connected to the inner contour curve of the third projection 3' is the inner contour of the first projection 1'; the portion connected to the outer contour curve of the third projection 3' is the outer contour of the first projection 1'. On the second projection 2', with point B as the dividing point, the portion connected to the inner contour curve of the third projection 3' is the inner contour of the second projection 2'; the portion connected to the outer contour curve of the third projection 3' is the outer contour of the second projection 2'. In some embodiments, with points A and B as boundaries, the inner contours of the first projection 1', the third projection 3', and the second projection 2' are sequentially connected to form the inner contour of the earphone 100; the outer contours of the first projection 1', the third projection 3', and the second projection 2' are sequentially connected to form the outer contour of the earphone 100.

[0050] In some embodiments, there is a contact area or contact point between the first projection 1' and the second projection 2', and the center point of the contact area (e.g., centroid, area center, etc.) or the contact point can be used as the first feature point O. In some embodiments, when the sound-emitting part 1 contacts the abutting part 2, the inner contour of the first projection 1' and the inner contour of the second projection 2' are in contact. At this time, a common tangent line Q2 can be determined on the inner contours of the first projection 1' and the second projection 2', and the common tangent line Q2 is tangent to the inner contours of both the first projection 1' and the second projection 2' at the first tangency point O. Point O can be used as the first feature point. In some embodiments, when the contact area between the sound-emitting part 1 and the abutting part 2 is a surface, the centroid of the projection of the contact surface onto the first symmetry plane S1 is the first feature point O. In some embodiments, when the sound-emitting part 1 and the contacting part 2 are in contact, the side of the first projection 1' that is away from the third projection 3' and the side of the second projection 2' that is away from the third projection 3' have a common tangent (i.e., common tangent Q1). The second point of tangency between the common tangent Q1 and the first projection 1' is point A, and the third point of tangency between the common tangent Q1 and the second projection 2' is point B. The line connecting points A and B (i.e., line AB, straight line Q1) can be used as a reference line Q1. In some embodiments, there is an overlapping area between the first projection 1' and the second projection 2'. In this overlapping area, the outer contour of the first projection 1' and the outer contour of the second projection 2' have two intersection points, and the midpoint of the line connecting the two intersection points is used as the first feature point O.

[0051] In some embodiments, the inner contour curve of the third projection 3' has at least one point C that is furthest from the first feature point O. In some embodiments, if there are multiple points that are furthest from the first feature point O, the point among these furthest points that is closest to the second projection 2' of the abutment portion 2 can be taken as the second feature point C. The second feature point C can be determined by tools, programs, etc. For example, by inputting the contour curve parameters of the earphone 10 (e.g., the simulated curve function of the inner contour of the earphone 10, the simulated curve function of the outer contour of the earphone 10, etc.), the corresponding tools, programs, etc. can determine the information of the first feature point O, thereby outputting the information of the second feature point C (e.g., its position).

[0052] The line connecting the first feature point O and the second feature point C is defined as the first connecting line OC. In some embodiments, a first auxiliary line Q3 is drawn through the second feature point C towards the side biased towards the first projection 1'. The first included angle between the first auxiliary line Q3 and the first connecting line (i.e., connecting line OC) has a first preset value range. The intersection point E of the inner contour curve of the third projection 3' and the first auxiliary line Q3 can be defined as the third feature point. The line CE connecting the third feature point E and the second feature point C is the second connecting line, and the second connecting line (i.e., connecting line CE) is collinear with the first auxiliary line Q3. In some embodiments, the third feature point E can serve as the boundary point between the inner contour curve of the third projection 3' and the inner contour of the first projection 1'. The portion of the ear hook 3 corresponding to the second connecting line CE (e.g., the portion corresponding to the arc segment CE) is located on the side of the second connecting line CE away from the abutment portion 2 to avoid interference between the ear hook 12 and the antihelix and the helix. In some embodiments, if the first angle (i.e., ∠OCE) between the second line CE and the first line OC is too small, it may cause interference and compression between the inner contour of the ear hook 3 corresponding to the second line CE and the portion of the user's ear from the helix to the concha. If the first angle between the second line CE and the first line OC is too large, it may cause the ear hook 3 to be too large, causing the sound-emitting part 1 to interfere with the user's tragus or block the user's ear canal opening.

[0053] In some embodiments, to avoid the sound-emitting part 1 blocking the user's ear canal opening and to avoid interference between the sound-emitting part 1 and the tragus or antihelix, the first preset value range of the first included angle can be 27°-37°, or greater than 37° and less than or equal to 50°. For example, the first preset value range of the first included angle can be actual values ​​between 27° and 37°, such as 27°, 33°, or 37°, or it can be actual values ​​greater than 37° and less than or equal to 50°, such as 40°, 41°, 43°, or 45°.

[0054] In some embodiments, to avoid the sound-emitting part 1 blocking the user's ear canal opening and to prevent the sound-emitting part 1 from interfering with the tragus or antihelix, the angle between the second line CE and the first line can be 27°-37°. For example, the angle between the second line CE and the first line can be 33°.

[0055] In some embodiments, the inner contour curve portion (i.e., arc CE) of the third projection 3' corresponding to the second connecting line CE has a first arc length, and the ratio between the first arc length and the length of the second connecting line CE can be defined as a first arc-chord ratio. The first arc-chord ratio reflects the smoothness of the arc CE corresponding to the second connecting line CE. The larger the first arc-chord ratio, the greater the convexity of the arc CE corresponding to the second connecting line CE, the larger the area within the arc CE, and the less likely the corresponding ear hook 3 portion will interfere with the part of the ear from the helix to the concha. The smaller the first arc-chord ratio, the smoother the arc CE corresponding to the second connecting line CE, the smaller the area within the arc CE, and the more likely the corresponding ear hook 3 portion will interfere with the part of the ear from the helix to the concha (e.g., the helix, antihelix). In some embodiments, the first arc-chord ratio can be 1.10-1.25. For example, the first arc-chord ratio can be 1.14.

[0056] In some embodiments, the first arc-chord ratio can be greater than 1.24 and less than or equal to 1.4. For example, the first arc-chord ratio can be an actual value greater than 1.24 and less than or equal to 1.4, such as 1.25, 1.29, 1.3, 1.4, etc.

[0057] In some embodiments, a second auxiliary line Q4 is drawn from the second feature point C toward the side biased towards the second projection 2'. The second included angle between the second auxiliary line Q4 and the first connecting line OC has a second preset value range. The intersection point H of the curve segment on the inner contour curve of the third projection 3' connected to the second projection 2' and the second auxiliary line Q4 can be defined as the fourth feature point. The line CH connecting the fourth feature point H and the second feature point C is the third connecting line, and the third connecting line CH is collinear with the second auxiliary line Q4. In some embodiments, the fourth feature point H can serve as the boundary point between the inner contour curve of the third projection 3' and the inner contour of the third projection 3'. In some embodiments, if the second included angle (i.e., ∠OCH) between the fourth connecting line CH and the first connecting line OC is too small, it may cause the abutment part 2 to excessively compress the back of the user's auricle. If the second included angle between the fourth connecting line CH and the first connecting line OC is too large, it may cause the ear hook 3 to be too large, causing the abutment part 2 to interfere with the scalp tissue on the back of the user's auricle. In some embodiments, to avoid excessive pressure on the ear by the abutment part 2 and to prevent interference between the abutment part 2 and the user's scalp, the angle between the fourth line CH and the first line OC can be 34°-49°. For example, the angle between the fourth line CH and the first line OC can be 40°. In some embodiments, to avoid excessive pressure on the ear by the abutment part 2 and to prevent interference between the abutment part 2 and the user's scalp, the angle between the fourth line CH and the first line OC can also be set to be greater than or equal to 20° and less than 34°. For example, the angle between the fourth line CH and the first line OC can be an actual value greater than or equal to 20° and less than 34°, such as 20°, 25°, or 27°.

[0058] In some embodiments, the inner contour curve portion (i.e., arc CH) of the third projection 3' corresponding to the third line CH has a second arc length, and the ratio between the second arc length and the length of the third line CH can be defined as the second arc-chord ratio. The second arc-chord ratio reflects the smoothness of the arc CH corresponding to the third line CH. The larger the second arc-chord ratio, the greater the convexity of the arc CH corresponding to the third line CH, the larger the area within the arc CH, and the more likely the abutment portion 2 and the ear hook 3 are to abut against the scalp skin on the back of the auricle. The smaller the second arc-chord ratio, the smoother the arc CH corresponding to the third line CH, the smaller the area within the arc CH, and the more likely the corresponding portion of the ear hook 3 may interfere with the portion of the ear from the helix to the back of the auricle (e.g., the outermost point of the helix). In some embodiments, the second arc-chord ratio can be 1.11-1.24. For example, the second arc-chord ratio can be 1.17. In some embodiments, the second arc-chord ratio can be set to be greater than 1.24 and less than or equal to 1.40. For example, the second arc-chord ratio can be set to actual values ​​such as 1.25, 1.26, 1.29, 1.30, 1.40, etc., which are greater than 1.24 and less than or equal to 1.40.

[0059] In some embodiments, point N on the first projection 1' that is closest to the second feature point C can be defined as the fifth feature point, and the line CN connecting the second feature point C and the fifth feature point N can be defined as the fourth line. The extension of the fourth line CN intersects the first projection 1' at the sixth feature point M. In some embodiments, the sixth feature point M can be considered as the point on the first projection 1' that is farthest from the second feature point C. In some embodiments, the direction of the line connecting the second feature point C and the sixth feature point M is generally towards the user's ear canal opening.

[0060] The line connecting the fifth feature point N and the sixth feature point M is defined as the fifth connecting line (i.e., connecting line NM). The curve segment (i.e., arc NM) of the first projection 1' corresponding to the fifth connecting line NM has a third arc length. The ratio of the third arc length (i.e., arc NM) to the length of the fifth connecting line (i.e., connecting line NM) is defined as the third arc-chord ratio. The third arc-chord ratio can reflect the shape of the first projection 1', and thus reflect the shape of the sound-producing part 1.

[0061] In some embodiments, the third arc-chord ratio can be 1.4-1.7, making the arc NM approximately a semicircle, and the fifth connecting line NM can be regarded as the diameter of the first projection 1', thus making the sound-emitting part 1 spherical or approximately spherical, adapting the shape of the sound-emitting part 1 to the concha cavity, and improving the wearing comfort of the earphone 10. If the distance between the second feature point C and the sixth feature point M is too large, it may cause the sound-emitting part 1 to block the user's ear canal opening or interfere with the tragus; if the distance between the second feature point C and the sixth feature point M is too small, it may affect the size of the sound-emitting part 1 and thus affect the listening effect, or cause the sound-emitting part 1 to interfere with the antihelix.

[0062] In some embodiments, the third arc-chord ratio can also be set to a value greater than 1.7 and less than or equal to 1.8. For example, the third arc-chord ratio can be set to actual values ​​such as 1.75 and 1.8, which are greater than 1.7 and less than or equal to 1.8. This makes the arc NM approximately a semicircle, and the fifth line NM can be regarded as the diameter of the first projection 1', thereby making the sound-emitting part 1 spherical or approximately spherical, so that the shape of the sound-emitting part 1 fits the concha cavity and improves the wearing comfort of the earphone 10.

[0063] The clamping force is the force exerted on the ear by the sound-generating part 1 and the abutting part 2 when they clamp the wearer's ear. Figure 8 This is an exemplary schematic diagram illustrating clamping forces according to some embodiments of this specification, such as... Figure 8 As shown, when the sound-emitting part 1 and the abutment part 2 clamp the wearer's ear with an auricle thickness of D, they respectively apply a force F to the ear, which is the clamping force. In some embodiments, the clamping force may include the deformation force F' generated by the elastic deformation of the ear hook 3. The greater the auricle thickness D of the wearer's ear, the greater the distance between the shell of the sound-emitting part 1 and the abutment part 2, the greater the deformation of the ear hook 3, and the greater the corresponding deformation force F'.

[0064] In some embodiments, the clamping force can be determined using a force gauge. The force gauge measures the clamping force in a similar manner to the force gauge used to measure tensile force, as described later.

[0065] In some embodiments, the abutment 2 contacts the sound-emitting part 1 when the abutment 2 is held and the sound-emitting part 1 is freely placed with the sound-emitting part 1 facing the ground along the direction of gravity. Specifically, the state of holding the abutment 2 and placing the sound-emitting part 1 with the sound-emitting part 1 facing the ground along the direction of gravity can be understood as suspending the ear clip-on earphone 100 in the air by holding the abutment 2, and allowing the sound-emitting part 1 to be freely placed with the sound-emitting part facing the ground along the direction of gravity. For example, holding the abutment 2 and adjusting the posture of the ear clip-on earphone 100 so that the first symmetry plane S1 is parallel to the direction of gravity while the sound-emitting part 1 is located below the abutment 2 along the direction of gravity. In some embodiments, when the abutment part 2 is held and the sound-emitting part 1 is freely placed with the sound-emitting part 1 facing the ground in the direction of gravity, the abutment part 2 and the sound-emitting part 1 can remain in contact under the action of the ear hook 3. For example, when the abutment part 2 is held and the sound-emitting part 1 is freely placed with the sound-emitting part 1 facing the ground in the direction of gravity, the abutment part 2 and the sound-emitting part 1 can remain in contact under the action of the pre-tightening force and clamping force provided by the ear hook 3.

[0066] As mentioned above, the clamping force increases with the thickness of the wearer's ear. It is necessary to ensure that the clamping force is greater than the lower limit corresponding to the minimum ear thickness to ensure that the ear-clip headphones can be stably worn on users with thinner earlobes. Furthermore, it is necessary to ensure that the clamping force is less than the upper limit corresponding to the maximum ear thickness to avoid discomfort for users with thicker earlobes. For example, after multiple tests, it was found that when the minimum earlobe thickness D... s When the diameter is 3.5mm, the lower limit of the clamping force is F. s With a resistance of 0.20N, it can ensure the stability of wearing the smallest ear; the maximum ear thickness D m The diameter is 5.6mm, and the corresponding upper limit of clamping force F is 5.6mm. m A clamping force of 0.70N ensures comfort even with the largest ear size. Therefore, when wearing the ear with an ear thickness between 3.5mm and 5.6mm, the clamping force should be no less than 0.20N and no more than 0.70N to balance stability and comfort. For example, after multiple tests, it was found that when the minimum ear thickness D... s The diameter is 3.8mm, and the corresponding lower limit of clamping force is F. s With a strength of 0.25N, it can ensure the stability of wearing the smallest ear; the maximum ear thickness D m The clamping force is 5.5mm, and the corresponding upper limit F is... mWith a clamping force of 0.65N, the comfort of wearing the ear with the largest possible diameter is guaranteed. Therefore, when wearing the ear with a diameter between 3.8mm and 5.5mm, the clamping force should be no less than 0.25N and no more than 0.65N to ensure wearing stability and comfort.

[0067] Because the clamping force varies with ear thickness, the wearing experience of the same clip-on headphones can differ significantly for users with different ear thicknesses. To avoid this problem, while ensuring stability and comfort, mechanisms need to be implemented to reduce the difference in clamping force between the ears of users with different ear thicknesses.

[0068] In some embodiments, the difference between the clamping force experienced by users with small ears and those with large ears can be reduced by controlling the elastic coefficient of the ear hook 3. The elastic coefficient can represent the relationship between the distance between the sound-emitting part 1 and the abutment part 2 and the deformation force provided by the ear hook 3. A larger elastic coefficient indicates a larger deformation force per unit distance, resulting in a larger clamping force.

[0069] Specifically, it can be based on the minimum auricle thickness D s Maximum auricle thickness D m Clamping force lower limit F s and clamping force upper limit F m Determine the maximum elastic coefficient k m In some embodiments, the elastic modulus of the ear loop can be between 0.01 N / mm and 1.6 N / mm. For example, (F m -F s ) / (D m -D s )=(0.70-0.20) / (5.6-3.5)=0.5 / 2=1.6N / mm. In some embodiments, the elastic modulus of the ear loop can be between 0.01N / mm and 0.24N / mm. For example, (F m -F s ) / (D m -D s )=(0.65-0.25) / (5.5-3.8)=0.4 / 1.7=0.24N / mm.

[0070] By reducing the elastic coefficient of the ear hooks, the difference in clamping force between users with small ears and users with large ears can be reduced. Figure 9This is an exemplary schematic diagram showing the clamping force variation curves corresponding to different elastic coefficients within a certain range, as illustrated in some embodiments of this specification. The clamping force variation curves can reflect the clamping force corresponding to different ear thicknesses. L1 is the clamping force variation curve corresponding to an ear hook with an elastic coefficient of 0.075 N / mm, and L2 is the clamping force variation curve corresponding to an ear hook with an elastic coefficient of 0.045 N / mm. Figure 9 As shown, when the elastic modulus decreases, the slope of the clamping force variation curve decreases, and the difference between the clamping force corresponding to the smaller ear and the clamping force corresponding to the larger ear becomes smaller. For example, δF can represent the minimum auricle thickness D. s and maximum auricle thickness D m The corresponding clamping force difference, when the elastic modulus decreases from 0.075 N / mm to 0.045 N / mm, results in the minimum auricle thickness D. s and maximum auricle thickness D m The corresponding clamping force difference decreases from δF1 to δF2.

[0071] Preload refers to the pressure applied by the ear hook 3 in its natural state between the sound-producing part 1 and the abutment part 2. In other words, the pre-deformation of the ear hook provides the pre-deformation force, which is used to make the sound-producing part 1 and the abutment part 2 abut and compress against each other. In the non-wearing state, the ear hook 3 does not undergo further elastic deformation, and the force it applies to the sound-producing part 1 and the abutment part 2 only includes the preload. Figure 4 As shown, in the non-wearing state, the ear hook 3 applies a preload force F0 to the sound-producing part 1 and the abutment part 2, causing them to abut against each other. At this time, the interaction force between the sound-producing part 1 and the abutment part 2 is equal to the preload force F0. In the wearing state, the ear hook 3 undergoes further elastic deformation, and the force it applies to the sound-producing part 1 and the abutment part 2 includes the elastic deformation force and the preload force. That is to say, the clamping force mentioned above includes the elastic deformation force and the preload force.

[0072] In some embodiments, the structure (such as shape and included components) of the ear hook 3 can be designed to provide preload, thereby ensuring the stability of the ear hook when worn. For example, a titanium plate can be incorporated into the ear hook 3 to provide preload. For example, the preload can be between 0.01N and 0.20N. Or, for example, the preload can be between 0.01N and 0.25N. As an example only, the preload can be 0.08N.

[0073] In some embodiments, the preload can compensate for the decrease in clamping force due to a decrease in the elastic modulus. As mentioned above, to reduce the difference in clamping force between the minimum and maximum auricular thickness, the elastic modulus can be reduced; however, reducing the elastic modulus may decrease the clamping force and affect wearing stability. Figure 9 As shown, when the clamping force is provided solely by deformation force, the minimum auricle thickness D is along the straight line L2 after the elastic coefficient decreases.s The corresponding clamping force is less than the lower limit of clamping force F. s This results in clip-on headphones not being able to fit stably on the ears of users with microtia. In some embodiments of this specification, the ear hook 3 applies a pre-tightening force to the sound-generating part 1 and the abutment part 2 to improve wearing stability when the elastic coefficient decreases.

[0074] Specifically, under critical conditions, the preload provides the entire clamping force; therefore, the maximum value of the preload F0 is the minimum auricle thickness D. s The corresponding clamping force lower limit F s .

[0075] For example, such as Figure 9 As shown, when the ear hook is configured to apply a preload F0, the clamping force change curve changes from a straight line L2 to a straight line L3. At this time, the minimum auricle thickness D... s The corresponding clamping force is 0.25N, which can ensure the wearing stability for users with microtia; the maximum auricle thickness D m The corresponding clamping force becomes Fm', which is less than 0.65N; the minimum auricle thickness D s and maximum auricle thickness D m The corresponding clamping force difference remains at δF2. From Figure 9 It is evident that by applying a preload, the difference between the clamping force experienced by users with small ears and those with large ears can be reduced to less than δF1, where δF1 is F m and F s The difference between them is 0.40N.

[0076] For example, when the clamping force variation curve is flatter, the minimum auricle thickness D... s The corresponding clamping force is 0.25N, which can ensure the wearing stability for users with microtia; the maximum auricle thickness D m The corresponding clamping force becomes Fm", which is less than 0.45N; the minimum auricle thickness D s and maximum auricle thickness D m The corresponding clamping force difference remains at δF3. That is, when the distance between the housing of the sound-generating part 1 and the abutment part 2 is D... s (3.8mm) and D m When the clamping force varies between 5.5mm, the change in clamping force shall not exceed 0.20N.

[0077] It should be noted that, Figure 9 The clamping force variation curves shown are for illustrative purposes only and are not intended to limit the scope of this specification. For example, the relationship between auricle thickness and clamping force can be non-linear.

[0078] In some embodiments, the preload force can be measured by a thin-film pressure sensor. Specifically, the thin-film pressure sensor is placed between the sound-emitting part 1 and the abutment part 2, so that the thin-film pressure sensor is squeezed by the sound-emitting part 1 and the abutment part 2, thereby measuring the preload force.

[0079] In some embodiments, the preload can be measured by applying a tensile force to the sound-generating part 1 and / or the abutment part 2. Specifically, a tensile force in the opposite direction to the applied preload can be applied to the sound-generating part 1 and / or the abutment part 2 multiple times. Each applied tensile force causes a certain distance to be separated between the sound-generating part 1 and the abutment part 2. Based on the multiple applied tensile forces and the corresponding distances, the preload between the sound-generating part 1 and the abutment part 2 can be determined.

[0080] For example, Figure 5 These are exemplary schematic diagrams illustrating the measurement of preload according to some embodiments of this specification, such as... Figure 5 As shown, when a tension force F1 is applied to the sound-emitting part 1 or the abutting part 2, the distance between the sound-emitting part 1 and the abutting part 2 is D1; ​​when a tension force F2 is applied to the sound-emitting part 1 or the abutting part 2, the distance between the sound-emitting part 1 and the abutting part 2 is D2; based on D1, F1, D2 and F2, the preload force F0 can be determined.

[0081] In some embodiments, the pulling force applied to the sound-generating part 1 and / or the abutting part 2 can be determined by a force gauge. The force gauge may include, but is not limited to, digital force gauges (such as digital push-pull force gauges), mechanical force gauges (such as spring force gauges), etc. In some embodiments, the distance between the sound-generating part 1 and the abutting part 2 can be determined by a rangefinder. The rangefinder may include, but is not limited to, vernier calipers, laser rangefinders, etc.

[0082] Figure 6A and Figure 6B This is an exemplary schematic diagram illustrating the determination of tensile force and corresponding distance according to some embodiments of this specification. It is for illustrative purposes only. Figure 6AAs shown, auxiliary plate 603 and corner bracket 601 are fixed in the Y direction using adhesives (e.g., quick-drying glue, hot melt glue, etc.) or other fixing methods that do not damage the ear clip-on headphone structure. Auxiliary plate 604 and corner bracket 602 are also fixed in the Y direction. Auxiliary plate 603 and auxiliary plate 604 are placed on a support platform with a low coefficient of friction in the Y direction (e.g., a support platform on a lubricating oil interface or bearing support). The inner side of corner bracket 601 in the Z direction and the inner side of corner bracket 602 in the Z direction are tangent to the two sides of the headphone, thereby fixing the headphone between corner brackets 601 and 602. Screw 605 passes through corner bracket 601 to secure the sound-generating part 1 to corner bracket 601 in the Y direction, and nut 606 connects the force gauge 607 in the Y direction to corner bracket 602. In some embodiments, the headphone can be further fixed using adhesives (e.g., quick-drying glue, hot melt glue, etc.) or other fixing methods that do not damage the ear clip-on headphone structure, so that the connection points between the headphone and the two corner brackets are close to the horizontal direction. For example, such as Figure 6A As shown, the outer side of the sound-emitting part 1 is fixed at point 608-1, and the outer side of the abutting part 2 is fixed at point 608-2, such that the line connecting point A of the sound-emitting part 1 and the corner bracket 601 and point B of the abutting part 2 and the corner bracket 602 is parallel to the Y direction. During measurement, the auxiliary plate 604 is fixed, and the auxiliary plate 603 is moved by a pulling force in the Y direction, so that the sound-emitting part 1 and the abutting part 2 are separated by a distance. The magnitude of the pulling force is obtained by a force measuring instrument 607, and the distance between the auxiliary plate 603 and the auxiliary plate 604 is obtained by a vernier caliper, that is, the distance between the sound-emitting part 1 and the abutting part 2.

[0083] As yet another example, such as Figure 6B As shown, the clamping device 610 fixes the abutment part 2 with the fastener 610-1. One end of the force measuring wire 612 is connected to the housing of the sound-emitting part 1 on the side away from the battery compartment (e.g., at the maximum cross-section 611 parallel to the horizontal plane) by an adhesive (e.g., quick-drying glue, hot melt glue, etc.), and the other end of the force measuring wire 612 is connected to the force measuring instrument 614. The force measuring wire 612 is parallel to the Y direction. During measurement, the force measuring instrument 613 is fixed, and the force measuring instrument 614 is moved by a pulling force in the Y direction, thereby pulling the sound-emitting part 1 to move, so that the sound-emitting part 1 and the abutment part 2 are separated by a distance. The distance between the sound-emitting part 1 and the abutment part 2 is obtained by the vernier caliper 609, and the magnitude of the pulling force is obtained by the force measuring instrument 607.

[0084] In some embodiments, a straight line relating tension and distance can be obtained by data fitting based on tension and its corresponding distance, and the preload between the sound-emitting part 1 and the abutting part 2 can be determined based on the straight line relating tension and distance when the sound-emitting part 1 abuts the abutting part 2 (i.e., the distance between the sound-emitting part and the abutting part is 0 mm). Figure 7This is an exemplary schematic diagram of a linear relationship between tension and distance, shown according to some embodiments of this specification. Figure 7 As shown, based on F1, F2, D1 and D2, the relationship line y = kx + F0 is obtained through data fitting. The intersection of the relationship line and the Y-axis is the preload F0. That is, when the distance between the sound-generating part 1 and the abutting part 2 is 0mm, the force between them in the abutting direction is determined as the preload F0.

[0085] In some embodiments, a first magnet may be provided in the sound-emitting part 1, and a second magnet may be provided in the abutting part 2. The first magnet and the second magnet attract each other to compensate for the clamping force provided by the sound-emitting part 1 and the abutting part 2. For a detailed description of the attraction between the first magnet and the second magnet to compensate for the clamping force, please refer to FIG10 and its related description.

[0086] In some embodiments, the ear hook 3 may include a flexible material such as metal or alloy. In some embodiments, the flexible material may be a linear structure or a strip structure with length. By way of example only, the ear hook 3 may include a titanium sheet.

[0087] For example, such as Figure 3 As shown, the ear hook 3 may include a titanium sheet 31 and a flexible layer 32 wrapped around the outside of the titanium sheet. The two ends 31-a and 31-b along the length of the titanium sheet 31 are respectively connected to the housing 11 and the abutment portion 2. Compared to titanium wire, using a titanium sheet as the elastic material of the ear hook 3 can reduce the torque at both ends of the titanium sheet, making the relationship between the clamping force and the distance between the housing 11 of the sound-generating part 1 and the abutment portion 2 approximately linear.

[0088] In some embodiments, the width dimension of the titanium sheet can be between 1.5 mm and 3 mm, and the thickness dimension can be between 0.15 mm and 0.3 mm. In some embodiments, the elastic modulus of the ear loop is determined based on the Young's modulus, bending stiffness, thickness, length, and width of the elastic material in the ear loop 3. Specifically, the thickness h and length L of the titanium sheet are determined based on the external dimensions of the ear loop 3, and further, based on the Young's modulus, bending stiffness of titanium, and the range of the elastic modulus of the ear loop, the width and thickness dimensions of the titanium sheet can be determined.

[0089] In some embodiments of this specification, the ear hook 3 provides pre-tightening force to the housing 111 of the sound-generating part 1 and the abutment part 2, which can ensure that when the difference in clamping force between the wearer with small ears and the wearer with large ears is reduced by decreasing the elastic coefficient of the ear hook 3, the clamping force on the small ears can remain unchanged, thereby improving the stability and comfort of wearers with different ear thicknesses.

[0090] like Figure 14As shown, the second feature point C is the protrusion of the ear hook 3, and the stress at the second feature point C is relatively large. To avoid excessive stress concentration on the ear hook 3 and to improve its service life, the protrusion of the third projection 3' near the second feature point C should not be too large. However, if the protrusion of the third projection 3' near the second feature point C is too small, it will affect the overall structure and size of the earphone 10, which may cause the ear hook 3 to interfere with the user's ear and affect the wearing stability of the earphone 100.

[0091] In some embodiments, to characterize the degree of protrusion of the ear loop 3 near the second feature point C, two arc segments (e.g., arc CT1 and arc CT2) of equal length can be determined on the inner contour curve of the third projection 3', with the second feature point C as the center. The line connecting the ends of the two arc segments (e.g., arc CT1 and arc CT2) away from the second feature point C is called the connecting line T1T2, and the arc segment corresponding to the connecting line T1T2 is called arc T1T2. The arc-chord ratio between the arc length of arc T1T2 and the length of the connecting line T1T2 can represent the curvature of the corresponding arc T1T2, thereby representing the degree of protrusion of the inner contour curve at the position corresponding to arc T1T2.

[0092] In some embodiments, to accurately characterize the degree of protrusion of the ear hook 3 near the second feature point C, points T1 and T2 should not be too close to or too far from the second feature point C. In some embodiments, the arc lengths of arcs CT1 and CT2 can be 2.5mm-3.5mm. In some embodiments, to further improve the accuracy of characterizing the degree of protrusion of the ear hook 3 near the second feature point C, the preset arc length range can be 2.7mm-3.2mm.

[0093] In some embodiments, when the sound-emitting part 1 and the abutting part 2 are not in contact, in order to avoid excessive stress concentration in the area of ​​the ear hook 3 and to ensure the wearing stability of the earphone 10, the arc-chord ratio between the arc length of arc T1T2 and the length of the connecting line T1T2 can be 1.00-1.10. In some embodiments, in order to further avoid excessive stress concentration in the area of ​​the ear hook 3 and extend the service life of the ear hook 3, the arc-chord ratio between the arc length of arc T1T2 and the length of the connecting line T1T2 can be 1.01-1.07. For example, the arc-chord ratio between the arc length of arc T1T2 and the length of the connecting line T1T2 can be 1.04.

[0094] In some embodiments, when the sound-emitting part 1 and the abutting part 2 abut against each other, the arc-chord ratio between the arc length of arc T1T2 and the length of the connecting line T1T2 can be 1.03-1.12. For example, the arc-chord ratio between the arc length of arc T1T2 and the length of the connecting line T1T2 can be 1.06.

[0095] Figure 10A and Figure 10B This is a schematic diagram of the structure of an ear clip-on headphone according to some embodiments of this specification.

[0096] Figure 10A and 10B The clip-on headphones shown Figure 1 The ear-clip headphones shown are similar, also including a sound-producing part 1, a contact part 2, and an ear hook 3. Figure 10A and 10B In the ear-clip earphone shown, a first magnet 21 is disposed within the sound-emitting part 1, and a second magnet 22 is disposed within the abutment part 2. The first magnet 21 and the second magnet 22 attract each other to compensate for the clamping force provided by the ear hook 3 to the sound-emitting part 1 and the abutment part 2. This compensation for the clamping force provided by the ear hook 3 to the sound-emitting part 1 and the abutment part 2 can be understood as a portion of the clamping force provided by the ear hook 3 being formed by the mutual attraction between the first magnet 21 and the second magnet 22. The first magnet 21 and the second magnet 22 are respectively disposed inside the area where the sound-emitting part 1 and the abutment part 2 abut. In some embodiments, a flexible body is provided in the area where the housing abuts the abutment part. (Reference) Figure 3 The area where the housing 11 abuts against the abutting part 2 is provided with a flexible body 112 and a flexible body 23. The first magnet 21 is embedded within the flexible body 112 of the housing 11, and the second magnet 22 is embedded within the flexible body 23 of the abutting part 2. This shortens the distance between the first and second magnets, making the magnitude and direction of the attraction more ideal. Simultaneously, the flexible body covers both the first and second magnets, ensuring comfort during wear.

[0097] In some embodiments, the first magnet and / or the second magnet may comprise a Heilbeck magnet array consisting of multiple magnets. Exemplarily, the multiple magnets may be arranged along the length of the magnet (first magnet and / or second magnet), and the magnetic attraction directions of the multiple magnets may be different, such that the magnetic attraction force of the magnet, generated by the superposition of the magnetic attraction forces of the multiple magnets, is weakened or strengthened in different directions. For example, weakening the magnetic attraction force on the side of the magnet away from the contact area and strengthening the magnetic attraction force on the side of the magnet closer to the contact area allows for the generation of the same magnetic attraction force with fewer magnets, thereby enabling a more compact and lighter earcup headphone structure and improving wearing comfort.

[0098] In some embodiments, the first magnet 21 is part of the sound-generating assembly 12. For example... Figure 10A As shown, the magnet 123 of the sound-generating assembly 12 can serve as the first magnet 21. (Reference) Figure 3The sound-generating assembly 12 can be housed within the accommodating cavity 111 of the sound-generating part 1, and further includes a diaphragm 121 and a coil 122, with the coil 122 connected to the diaphragm 121. The coil 122 is located in the magnetic field of the magnet 123, and when energized, the coil 122 can drive the diaphragm 121 to vibrate. The first magnet 123 is positioned relative to the diaphragm 121 on the side of the sound-generating assembly 12 closer to the concha cavity.

[0099] In some embodiments, the first magnet 21 and the sound-generating component 12 are independent of each other. For example... Figure 10B As shown, the first magnet 21 is located outside the sound-generating assembly 12, which includes a magnet 123 (also referred to as a third magnet), wherein the magnet 21 is closer to the second magnet 22 than the magnet 123.

[0100] When worn, the attractive force between the first magnet 21 and the second magnet 22 can compensate for the clamping force provided by the ear hook 3 to the sound-emitting part 1 and the abutment part 2. For example... Figure 11 As shown, the first magnet 21 and the second magnet 22 can attract each other, generating an attractive force F. A The clamping force F provided by the ear hook 3 to the sound-emitting part and the abutment part is compensated. That is to say, in the wearing state, the clamping force F includes the attractive force F. A And the deformation force F' generated by the elastic deformation of the ear hook 3. In some embodiments, the relationship between the distance and the attraction between the first magnet 21 and the second magnet 22 can be expressed by formula (1):

[0101]

[0102] Where K is a constant, m1 can represent the magnetic moment of the first magnet 21, m2 can represent the magnetic moment of the second magnet 22, d can represent the distance between the first magnet 21 and the second magnet 22, x0 can represent the distance between the first magnet 21 and the second magnet 22 in the non-wearing state, and x can represent the increased distance between the first magnet 21 and the second magnet 22 in the wearing state due to the movement of the sound-emitting part and the contact part.

[0103] As can be seen from formula (1), the greater the increase in distance x between the sound-emitting part 1 and the contact part 2, the greater the distance d between the first magnet 21 and the second magnet 22, and the greater the attraction F between the first magnet 21 and the second magnet 22. A The corresponding decrease.

[0104] In some embodiments, a force gauge and pads of varying thicknesses (e.g., silicone pads, thick paper sheets, rubber pads, etc.) can be used to measure different attractive forces corresponding to different distances between the first magnet 21 and the second magnet 22. Specifically, the ear hook 3 of the clip-on earphone can be cut off, and then either the sound-generating part 1 or the abutment part 2 can be fixed, while the other part of the sound-generating part 1 or the abutment part 2 can be connected to the force gauge. The sound-generating part 1, the abutment part 2, and the force gauge need to be arranged side-by-side in the Y direction, similar to Figure 6. Pads of varying thicknesses are placed between the sound-generating part 1 and the abutment part 2 to control the distance between the first magnet 21 and the second magnet 22, while the force gauge measures the attractive force between the first magnet 21 and the second magnet 22 when pads of different thicknesses are placed. In some embodiments, the attractive force can be measured using a thin-film pressure sensor. Specifically, after cutting off the ear hook 3 of the ear clip-on headphones, a thin-film pressure sensor and pads of different thicknesses are placed between the sound-emitting part 1 and the abutment part 2, so that the thin-film pressure sensor is squeezed by the attraction force of the first magnet 21 in the sound-emitting part 1 and the second magnet in the abutment part 2, thereby measuring the attraction force corresponding to different distances between the first magnet 21 and the second magnet 22.

[0105] In some embodiments, when not worn, the ear hook 3 can provide a preload force to cause the sound-emitting part 1 and the abutment part 2 to abut against each other. For a detailed description of the preload force, please refer to [link to relevant documentation]. Figure 1 The details and related descriptions will not be repeated here.

[0106] In some embodiments, when not worn, the sound-emitting part 1 and the abutment part 2 do not come into contact. For example... Figure 12 As shown, in the non-wearing state, the sound-emitting part 1 and the abutting part 2 do not come into contact, that is, there is no pre-tightening force between the sound-emitting part 1 and the abutting part 2 to make them abut against each other.

[0107] In some embodiments, when worn, the clamping force provided by the ear hook 3 to the sound-emitting part 1 and the abutment part 2 includes the deformation force of the ear hook 3 due to elastic deformation and the attraction force between the first magnet 21 and the second magnet 22. In some embodiments, the clamping force may also include the preload force provided by the ear hook 3 for the abutment between the sound-emitting part 1 and the abutment part 2.

[0108] In some embodiments, the clamping force provided by the ear hook, the first magnet, and the second magnet can be determined by a force gauge. For a detailed description of measuring the clamping force using a force gauge, please refer to [link to relevant documentation]. Figure 1 Related descriptions.

[0109] As mentioned above, in order to ensure the stability of the ear-clip headphones on the wearer's ears, the clamping force provided by the ear hook 3 (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload force) needs to be greater than the lower limit of clamping force corresponding to the minimum ear thickness; and it needs to be ensured that the clamping force is less than the upper limit of clamping force corresponding to the maximum ear thickness in order to avoid discomfort caused by the ear-clip headphones to users with larger ear thicknesses. In some embodiments, when the distance between the housing of the sound-generating part 1 and the abutment part 2 is between 3.5mm and 5.6mm, the clamping force provided by the ear hook 3 (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload force) can be between 0.20N and 0.70N. For example, the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload force) provided by the ear hook 3 can be determined to be between 0.20N and 0.70N based on the lower limit of clamping force corresponding to the minimum auricle thickness (0.20N) and the upper limit of clamping force corresponding to the maximum auricle thickness (0.70N). In some embodiments, when the distance between the housing of the sound-generating part 1 and the abutment part 2 is between 3.8mm and 5.5mm, the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload force) provided by the ear hook 3 can be between 0.25N and 0.65N. Again, for example, the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload force) provided by the ear hook 3 can be determined to be between 0.25N and 0.65N based on the lower limit of clamping force corresponding to the minimum auricle thickness (0.25N) and the upper limit of clamping force corresponding to the maximum auricle thickness (0.65N).

[0110] As mentioned above, to ensure the stability of the clip-on headphones on the wearer's ears, the clamping force provided by the ear hook 3 (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload force) needs to be greater than the lower limit of the clamping force corresponding to the minimum ear thickness; and it needs to be ensured that the clamping force is less than the upper limit of the clamping force corresponding to the maximum ear thickness in order to avoid discomfort caused by the clip-on headphones to users with larger ear thicknesses. Figure 9AAs shown, in some embodiments, the curvature of the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload) relative to the distance H (which is also the distance between the housing of the sound-generating part 1 and the abutment part 2) can be seen in curves L4 and L5. Here, Fmax is the upper limit of the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload) changing with distance H between 3.8mm and 5.5mm according to the variation law of curve L4. Fmin is the lower limit of the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload) changing with distance H between 3.8mm and 5.5mm according to the variation law of curve L4 or curve L5. Fmix is ​​the upper limit of the clamping force (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force, and preload) changing with distance H between 3.8mm and 5.5mm according to the variation law of curve L5. When the distance between the housing of the sound-generating part 1 and the abutment part 2 varies between H1 (3.8 mm) and H2 (5.5 mm), the clamping force provided by the ear hook 3 (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force and preload force) can be between Fmin (0.10 N) and Fmax (0.20 N). For example, the clamping force can be the actual value between Fmin (0.10 N), 0.15 N, Fmax (0.20 N), etc., between Fmin (0.10 N) and Fmax (0.20 N). For example, when the distance between the housing of the sound-emitting part 1 and the abutment part 2 is H1 (3.8 mm), the clamping force is set to Fmin (0.1 N). When the distance between the housing of the sound-emitting part 1 and the abutment part 2 is H2 (5.0 mm), the clamping force is set between Fmix (0.14 N) and Fmax (0.2 N). For example, the clamping force can be set to actual values ​​between Fmix (0.14 N), Fmax (0.2 N), etc., which are between Fmix (0.14 N) and Fmax (0.2 N).

[0111] like Figure 9A As shown, in some embodiments, when the distance between the housing of the sound-emitting part 1 and the abutment part 2 is 5mm, the clamping force provided by the ear hook 3 (i.e., the sum of deformation force and attraction force, or the sum of deformation force, attraction force and pre-tightening force) is between 0.14N and 0.20N. For example, the clamping force can be an actual value between 0.14N and 0.20N, such as 0.14N, 0.15N, or 0.2N.

[0112] As mentioned above, the greater the distance x between the sound-producing part 1 and the contact part 2, the greater the deformation force F provided by the ear hook 3. k The larger the magnet 21, the greater the attraction F between the first magnet 21 and the second magnet 22. AThe smaller the value, the more effectively the difference between the clamping force experienced by microtia users and macrotia users can be reduced based on the attractive force between the first magnet 21 and the second magnet 22. For example, limiting the clamping force to between 0.3N and 0.5N reduces the difference between the clamping force experienced by microtia users and macrotia users to 0.20N. In some embodiments, when the distance between the housing of the sound-emitting part 1 and the abutment part 2 is between 3.8mm and 5.5mm, the variation in the clamping force provided by the ear hook 3 does not exceed 0.20N. As can be seen from the foregoing, in order to ensure a small difference between the clamping force experienced by microtia users and macrotia users, the minimum auricle thickness D can be used as a basis for further reducing the clamping force difference between microtia users and macrotia users. s Clamping force lower limit F s Maximum auricle thickness D m Clamping force upper limit F m When the distance between the housing of the sound-emitting part 1 and the abutment part 2 varies between 3.8 mm and 5.5 mm, the change in clamping force shall not exceed 0.20 N (i.e., F). m and F s difference).

[0113] In some embodiments, when the distance between the housing of the sound-emitting part 1 and the abutment part 2 is between 3.8 mm and 5.5 mm, the change in the attractive force between the first magnet 21 and the second magnet 22 can be between 0.05 N and 0.10 N.

[0114] Figure 13A and Figure 13B This is an exemplary schematic diagram of clamping force variation curves shown according to some embodiments of this specification. Figure 13A As shown, the clamping force F provided by the ear hook j Including deformation force F k and attraction F A The initial distance between the first and second magnets is x0. The deformation force F k It equals kx, where k is the spring constant and x is the distance between the sound-producing part and the contact part. Attractive force F A It can be calculated based on the formula (1) mentioned above. When the distance between the housing of the sound-producing part and the contact part is between x1 and x2, the deformation force F provided by the ear hook is... k In F sk To F mk Between the first magnet and the second magnet, the attractive force F provided by the first magnet and the second magnet A In F ma To F sa Between, clamping force F j In F sj To F mj Between, of which, F sj =F ma +F sk Fmj =F mk +F sa For example, when the distance between the sound-generating part housing and the abutment part is between 3.8mm and 5.5mm, the corresponding deformation force is between 0.27N and 0.35N. To ensure the clamping force is between 0.3N and 0.4N, the compensating attractive force needs to be between 0.03(0.3-0.27=0.03)N and 0.05(0.4-0.35=0.05)N. Figure 13A It can be seen that by setting appropriate parameters (such as k, K, m1, m2, x0, etc.), it is possible to achieve F within the range of x1-x2. k Increment and F A The reductions cancel each other out, resulting in a total clamping force F. j It remains basically stable within the range of x1-x2, thus ensuring a consistent user experience for users with different ear thicknesses using clip-on headphones.

[0115] In some embodiments, the ear hooks further provide a preload, and the total clamping force can be kept within a suitable range by adjusting the magnitude of the preload and the attraction force. For example... Figure 13B As shown, the ear hook can simultaneously provide deformation force F k Preload F0' and attractive force F A At this point, the clamping force of the ear hook on the user with large ears has exceeded the upper limit of the preload force. The preload force can be reduced from F0' to F0", thus improving the clamping force provided by the ear hook. Figure 13B The clamping force F shown j '. At the minimum auricle thickness D s and maximum auricle thickness D m Within the range, clamping force F j The corresponding curve is relatively flat and within a suitable clamping force range, indicating that the combination of pre-tightening force and attraction force can improve the wearing stability and comfort of clip-on headphones and reduce the clamping force difference between users with large ears and users with small ears.

[0116] In some embodiments, the elastic modulus of the ear hook can be between 0.01 N / mm and 0.23 N / mm. For a detailed description of the ear hook elastic modulus, please refer to [link to relevant documentation]. Figure 1 And its related descriptions.

[0117] In some embodiments, the ear hook may include a titanium sheet and a flexible layer covering the outside of the titanium sheet. In some embodiments, a housing and an abutment portion may be respectively connected to the two ends of the titanium sheet along its length. In some embodiments, the width of the titanium sheet may be between 1.5 mm and 3 mm, and the thickness may be between 0.15 mm and 0.3 mm. Further description of the ear hook material and shape can be found in [link to relevant documentation]. Figure 1 And its related descriptions.

[0118] In some embodiments of this specification, by providing a first magnet in the sound-emitting part and a second magnet in the abutting part, the clamping force is compensated based on the attractive force between the first magnet and the second magnet. The greater the distance between the outer shell of the sound-emitting part and the abutting part, the greater the clamping force and the smaller the compensation of the clamping force by the attractive force. This can reduce the difference in clamping force experienced by wearers with small ears and wearers with large ears, and improve the comfort of wearers with ear thicknesses.

[0119] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) the ear hook provides pre-tightening force to the shell and the abutment of the sound-producing part, which can ensure that when the difference in clamping force between the wearer with small ears and the wearer with large ears is reduced by decreasing the elastic coefficient of the ear hook, the clamping force on the small ears can remain unchanged, thereby improving the stability and comfort of wearers with different ear thicknesses; (2) by setting a first magnet in the sound-producing part and a second magnet in the abutment, the clamping force is compensated based on the attraction between the first magnet and the second magnet. The greater the distance between the shell and the abutment of the sound-producing part, the greater the clamping force and the smaller the compensation of the clamping force by the attraction, thereby reducing the difference in clamping force between the wearer with small ears and the wearer with large ears and improving the comfort of wearers with different ear thicknesses. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced can be any one or a combination of the above, or any other possible beneficial effects.

[0120] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

[0121] Furthermore, this specification uses specific terms to describe embodiments thereof. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Moreover, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0122] Furthermore, those skilled in the art will understand that various aspects of this specification can be described and illustrated in several patentable ways or situations, including any new and useful combination of processes, machines, products, or substances, or any new and useful improvements thereof. Accordingly, various aspects of this specification can be implemented entirely by hardware, entirely by software (including firmware, resident software, microcode, etc.), or by a combination of hardware and software. All of the above hardware or software may be referred to as a “data block,” “module,” “engine,” “unit,” “component,” or “system.” Furthermore, various aspects of this specification may be represented as a computer product located on one or more computer-readable media, including computer-readable program code.

[0123] Computer storage media may contain a propagated data signal containing computer program code, for example, on baseband or as part of a carrier wave. This propagated signal may take various forms, including electromagnetic, optical, and suitable combinations thereof. Computer storage media can be any computer-readable medium other than a computer-readable storage medium, which can be connected to an instruction execution system, apparatus, or device to enable communication, propagation, or transmission of a program for use. The program code located on the computer storage medium can be propagated through any suitable medium, including radio, cable, fiber optic cable, RF, or similar media, or any combination of the above media.

[0124] The computer program code required for the operation of each part of this manual can be written in any one or more programming languages, including object-oriented programming languages ​​such as Java, Scala, Smalltalk, Eiffel, JADE, Emerald, C++, C#, VB.NET, Python, etc.; conventional procedural programming languages ​​such as C, Visual Basic, Fortran2003, Perl, COBOL2002, PHP, ABAP; dynamic programming languages ​​such as Python, Ruby, and Groovy; or other programming languages. This program code can run entirely on the user's computer, or as a standalone software package on the user's computer, or partially on the user's computer and partially on a remote computer, or entirely on a remote computer or processing device. In the latter case, the remote computer can be connected to the user's computer through any network, such as a local area network (LAN) or wide area network (WAN), or connected to an external computer (e.g., via the Internet), or in a cloud computing environment, or used as a service such as Software as a Service (SaaS).

[0125] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods described herein. Although various examples of utility model embodiments that are currently considered useful have been discussed in the foregoing disclosure, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the embodiments described herein. For example, while the system components described above can be implemented by hardware devices, they can also be implemented solely by software solutions, such as installing the described system on existing processing devices or mobile devices.

[0126] Similarly, it should be noted that, in order to simplify the description disclosed herein and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of the embodiments of this specification may sometimes combine multiple features into a single embodiment, drawing, or description thereof. However, this method of disclosure does not imply that the subject matter of this specification requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiment disclosed above.

[0127] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this specification are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0128] For each patent, patent application, patent application publication, and other material, such as articles, books, specifications, publications, and documents, referenced in this specification, the entire contents of which are incorporated herein by reference. This excludes historical application documents that are inconsistent with or conflict with the content of this specification, as well as documents that limit the broadest scope of the claims in this specification (currently or subsequently appended to this specification). It should be noted that in the event of any inconsistency or conflict between the descriptions, definitions, and / or terminology used in the supplementary materials to this specification and the content of this specification, the descriptions, definitions, and / or terminology used in this specification shall prevail.

[0129] Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments described herein. Other variations may also fall within the scope of this specification. Therefore, alternative configurations of the embodiments described herein are intended to be illustrative rather than limiting, and should be considered consistent with the teachings of this specification. Accordingly, the embodiments described herein are not limited to those explicitly introduced and described herein.

Claims

1. An ear-jack earphone, comprising: a sound-emitting part configured to be located in a concha cavity of a wearer and in contact with an inner wall of the concha cavity in a wearing state, the sound-emitting part comprising: a housing having a receiving cavity; a sound-emitting assembly accommodated in the receiving cavity, the sound-emitting assembly being configured to convert an electrical signal into an acoustic signal and play the acoustic signal; a sound outlet on the housing configured to guide the sound produced by the sound-emitting assembly out; an abutting part configured to abut against a back side of a pinna of the wearer in the wearing state, the abutting part having a battery arranged therein; an ear hook configured to bypass a helix and a tragus of the wearer, connect to the sound-emitting part and the abutting part, and provide a clamping force for the sound-emitting part and the abutting part to be clamped on both sides of the pinna in the wearing state, and provide a pre-tightening force for the sound-emitting part and the abutting part to abut against each other in a non-wearing state.

2. The ear-jack earphone of claim 1, the ear hook having a first symmetry plane, the housing being projected on the first symmetry plane to form a first projection, the abutting part being projected on the first symmetry plane to form a second projection, and the ear hook being projected on the first symmetry plane to form a third projection, the third projection comprising an inner contour curve; wherein: the first projection and the second projection are in contact, between the first projection and the second projection, the first projection and the second projection have a first common tangent line, the first common tangent line is tangent to the first projection and the second projection at a first tangent point, and the first tangent point is a first feature point; or the first projection and the second projection have an overlapping area, at the overlapping area, an outer contour of the first projection and an outer contour of the second projection have two intersection points, and a midpoint of a line connecting the two intersection points is a first feature point; a point on the inner contour curve farthest from the first feature point is a second feature point; a line defined by the first feature point and the second feature point is a first connecting line, a first auxiliary line is drawn through the second feature point and deviated to a side of the first projection, a first included angle between the first auxiliary line and the first connecting line has a first preset value range, the first preset value range is 27°-37°, or greater than 37° and less than or equal to 50°, an intersection point of a curve segment on the inner contour curve connected to the first projection and the first auxiliary line is defined as a third feature point, a line defined by the third feature point and the second feature point is a second connecting line, a part of the inner contour curve corresponding to the second connecting line has a first arc length, a ratio between the first arc length and a length of the second connecting line is defined as a first arc-chord ratio, the first arc-chord ratio is 1.10-1.25, or the first arc-chord ratio is greater than or equal to 1.05 and less than 1.

10. A second auxiliary line is drawn from the second feature point to the side of the second projection, a second included angle between the second auxiliary line and the first connecting line has a second preset value range, the second preset value range is 34°-49°, or greater than or equal to 20° and less than 34°, the intersection point of the curve segment on the inner contour curve connected with the second projection and the second auxiliary line is defined as a fourth feature point, the connecting line of the fourth feature point and the second feature point is defined as a third connecting line, the part of the inner contour curve corresponding to the third connecting line has a second arc length, the ratio between the second arc length and the length of the third connecting line is defined as a second arc-chord ratio, the second arc-chord ratio is 1.11-1.24, or the second arc-chord ratio is greater than 1.24 and less than or equal to 1.

40.

3. The ear-jack earphone according to claim 2, the point on the first projection closest to the second feature point is a fifth feature point, the connecting line of the fifth feature point and the second feature point is a fourth connecting line, the extension line of the fourth connecting line intersects the first projection at a sixth feature point, the connecting line of the fifth feature point and the sixth feature point is defined as a fifth connecting line, the curve segment of the first projection corresponding to the fifth connecting line has a third arc length, the ratio between the third arc length and the length of the fifth connecting line is defined as a third arc-chord ratio, the third arc-chord ratio is 1.4-1.7, or the third arc-chord ratio is greater than 1.7 and less than or equal to 1.

8.

4. The ear-jack earphone according to claim 1, in a state that the abutting part is held and the sound-producing part is freely placed and makes the sound-producing part face the ground along the direction of gravity, the abutting part is in contact with the sound-producing part.

5. The ear-jack earphone according to claim 1, the pre-tightening force is between 0.01N-0.25N.

6. The ear-jack earphone according to claim 5, the elastic coefficient of the ear hook is between 0.01N / mm-0.24N / mm.

7. The ear-jack earphone according to claim 5, when the distance between the shell of the sound-producing part and the abutting part changes between 3.8mm-5.5mm, the clamping force is between 0.1N-0.2N.

8. The ear-jack earphone according to claim 5, when the distance between the shell of the sound-producing part and the abutting part is 5.5mm, the clamping force is between 0.14N-0.2N.

9. The ear-jack earphone according to claim 5, when the distance between the shell of the sound-producing part and the abutting part changes between 3.8mm-5.5mm, the change of the clamping force does not exceed 0.20N.

10. The ear-jack earphone according to claim 1, the ear hook comprises a titanium sheet and a flexible layer wrapped outside the titanium sheet, the two ends of the titanium sheet in the length direction are connected with the shell and the abutting part respectively, the width of the titanium sheet is between 1.5mm-3mm, and the thickness is between 0.15mm-0.3mm.

11. The ear-jack earphone of claim 1, wherein a region of the housing in abutment with the abutment portion is provided with a flexible body.

12. The ear-jack earphone of claim 1, wherein the sound producing portion is provided with a first magnet and the abutment portion is provided with a second magnet, the first magnet and the second magnet being attracted to each other to compensate for the clamping force provided by the sound producing portion and the abutment portion.

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