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; the sound outlet hole is formed in the shell and is configured to lead out the sound generated by the sound production assembly; an abutment portion configured to abut a back side of an auricle of a wearer in the worn state; 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; wherein a first magnet is arranged in the sound production part, a second magnet is arranged in the abutting part, and the first magnet and the second magnet attract each other to compensate the clamping force between the sound production part and the abutting part.

Description

[0001] Cross-references

[0002] This application claims priority to Chinese application No. 202311701969.7 filed on December 11, 2023, and the entire contents are incorporated herein by reference. Technical Field

[0003] The present invention relates to the field of earphones, and in particular to an ear-clip earphone. Background Art

[0004] Headphones have been widely used in people's daily life and can be used with mobile phones, computers and other electronic devices to provide users with sound playback functions. Among them, ear clip headphones are a new type of headphones that can be clamped on the wearer's ear helix by clamping force. However, the clamping force increases with the thickness of the clamped auricle, resulting in a greater clamping force as the thickness of the auricle increases.

[0005] Therefore, it is desired to provide an ear clip type earphone that can reduce the difference in clamping force between wearers with small ears and wearers with large ears, and improve the comfort of wearers with different auricle thicknesses. Utility Model Content

[0006] One aspect of the present specification provides an ear-clip earphone, comprising: a sound-emitting portion, which is configured to be located in the wearer's cavum concha and contact the inner wall of the cavum concha when in a worn state, and the sound-emitting portion comprises: a shell having a receiving cavity; a sound-emitting component received in the receiving cavity; a sound outlet located on the shell and configured to guide out the sound generated by the sound-emitting component; an abutment portion, which is configured to abut the back side of the wearer's auricle when in a worn state; an ear hook, which is configured to bypass the wearer's anti-helix and auricle, connect to the sound-emitting portion and the abutment portion, and provide a clamping force for the sound-emitting portion and the abutment portion to be clamped on both sides of the auricle when in a non-worn state; and the ear hook provides a pre-tightening force to make the sound-emitting portion and the abutment portion abut against each other when not in a worn state.

[0007] According to another aspect of the present specification, there is provided an ear-clip earphone, comprising: a sound-emitting portion, which is configured to be located in the concha of a wearer and in contact with the inner wall of the concha in a worn state, and the sound-emitting portion comprises: a shell having a receiving cavity; a sound-emitting component received in the receiving cavity; a sound outlet located on the shell and configured to conduct sound generated by the sound-emitting component; an abutment portion, which is configured to abut the back side of an auricle of the wearer in a worn state; and an ear hook, which is configured to bypass the anti-helix and the auricle of the wearer in a worn state, connect the sound-emitting portion and the abutment portion, and provide a clamping force for the sound-emitting portion and the abutment portion to be clamped on both sides of the auricle; wherein a first magnet is provided in the sound-emitting portion, and a second magnet is provided in the abutment portion, and the first magnet and the second magnet attract each other to compensate for the clamping force provided by the ear hook to the sound-emitting portion and the abutment portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0009] Figure 1 is a schematic diagram of the appearance structure of an ear clip-on headset according to some embodiments of this specification;

[0010] Figure 2 is a schematic diagram of wearing an ear clip-on headset according to some embodiments of this specification;

[0011] Figure 3 is a schematic cross-sectional structure diagram of an ear clip-on headset according to some embodiments of the present specification;

[0012] Figure 4 is an exemplary schematic diagram of preload force according to some embodiments of this specification;

[0013] Figure 5 is an exemplary schematic diagram of obtaining preload force according to some embodiments of this specification;

[0014] Fig. 6A and Figure 6B is an exemplary schematic diagram of determining two pulling forces and two corresponding distances according to some embodiments of this specification;

[0015] Figure 7 is an exemplary schematic diagram of fitting preload based on two pulling forces and two corresponding distances according to some embodiments of this specification;

[0016] Figure 8 is an exemplary schematic diagram of clamping force according to some embodiments of the present specification;

[0017] Fig. 9 is an exemplary schematic diagram of a linear change in clamping force according to some embodiments of the present specification;

[0018] Fig. 10A and Fig. 10B is a schematic diagram of the structure of an ear clip-on headset according to some embodiments of this specification;

[0019] Fig.11 is an exemplary schematic diagram of a first magnet and a second magnet in an ear clip-on headset according to some embodiments of the present specification;

[0020] Fig.12 is an exemplary schematic diagram of an ear clip-type headset in a non-wearing state according to some embodiments of this specification;

[0021] Fig.13A and Fig. 13B is an exemplary schematic diagram of the change of the clamping force provided by the ear hook, the first magnet, and the second magnet according to some embodiments of the present specification;

[0022] Fig.14 It is a schematic projection diagram of the ear-clip type earphone on the first symmetry plane according to some embodiments of the present specification. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this specification. For ordinary technicians in this field, this specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0024] It should be understood that the "system", "device", "unit" and / or "module" used in this specification is a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.

[0025] As shown in this specification and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0026] Flowcharts are used in this specification to illustrate the operations performed by the system according to the embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed precisely in order. Instead, the steps may be processed in reverse order or simultaneously. At the same time, other operations may also be added to these processes, or one or more operations may be removed from these processes.

[0027] Figure 1 It is a schematic diagram of the appearance structure of an ear clip type earphone according to some embodiments of this specification. Figure 21 is a schematic diagram of wearing ear clip earphones according to some embodiments of this specification. The ear clip earphones in this specification may include but are not limited to bone conduction earphones, air conduction earphones, bone-air conduction earphones, etc. In some embodiments, the ear clip earphones may be combined with glasses, headphones, head-mounted display devices, AR / VR helmets, and other products.

[0028] like Figure 1 and 2 As shown, the ear clip type earphone 100 may include a sound emitting portion 1 , an abutting portion 2 and an ear hook 3 .

[0029] The sound-generating part 1 is a sound playing device, which can be used to convert electrical signals into sound signals and play them to the wearer. Figure 3 is a schematic diagram of the structure of the sound-producing part according to some embodiments of this specification, such as Figure 3 As shown, the sound-emitting part 1 may include a housing 11, a sound-emitting component 12 and a sound outlet 13. The housing 11 may have a housing cavity 111 for accommodating at least the sound-emitting component 12. The sound-emitting component 12 is capable of converting an electrical signal into an acoustic signal, and may include one or more speakers, for example. The sound outlet 13 may be located on the housing 11, and is configured to derive the sound generated by the sound-emitting component 12.

[0030] The housing 11 may be a sphere, a cuboid, a cylinder, a terrace, an L-shape, a U-shape, a V-shape, or any irregular shape. In some embodiments, the housing may be made of plastic, metal, or other supporting materials that can be used as earphone housings to provide more stable support for the internal components of the housing 11 (such as the sound generating component 12).

[0031] The abutment portion 2 can cooperate with the sound-generating portion 1 to form a clamping device for clamping the ear clip-on earphone on the wearer's ear helix. In some embodiments, the abutment portion 2 can be used as a battery compartment for installing batteries or other components. In some embodiments, the battery can be installed in the sound-generating portion 1.

[0032] The ear hook 3 is used to connect the sound-emitting part 1 and the abutting part 2. Figure 2 As shown, in the wearing state, the sound-generating part 1 is configured to be located in the concha cavity 401 of the wearer and to contact the inner wall of the concha cavity 401; the abutting part 2 is configured to abut the back side of the auricle 404 of the wearer; the ear hook 3 can be configured to bypass the antihelix 403 and the auricle 402 of the wearer, connect the sound-generating part 1 and the abutting part 2, and provide a clamping force for the sound-generating part 1 and the abutting part 2 to clamp on both sides of the auricle 404. Figure 1 As shown, in the non-wearing state, the ear hook 3 can provide a pre-tightening force for 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.

[0033] In some embodiments, Figure 2As shown, the area on the shell 11 that abuts the abutment portion 2 may be provided with a flexible body 112. The area abutting the abutment portion 2 refers to the area on the shell 11 that contacts the abutment portion 2 when not worn. When the ear clip earphone is worn, the area on the shell 11 that abuts the abutment portion 2 contacts the inner wall of the concha cavity. 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 portion 1 when in contact with the wearer.

[0034] In some embodiments, the ear hook 3 may be symmetrically arranged, and the ear hook 3 has a first symmetry plane S1. In some embodiments, in the worn state, the first symmetry plane S1 may be parallel to the horizontal plane. In some embodiments, the first symmetry plane S1 may be located at the midpoint of the width direction of the ear hook 3. The first symmetry plane S1 may divide the ear hook 3 into two 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 connected to the sound-emitting part 1 to the end of the ear hook 3 connected to the abutting part 2).

[0035] Fig.14 FIG. 1 is a schematic diagram of a projection of an ear-clip earphone on a first symmetry plane according to some embodiments of the present specification. Fig.14 As shown, the sound-emitting portion 1 forms a first projection 1' on the first symmetry plane S1, the abutting portion 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, the first projection 1' and the second projection 2' have a common tangent line Q1 passing through point A and point B, the tangent line Q1 is tangent to the first projection 1' at point A, and the tangent line Q1 is tangent to the second projection 2' at point B.

[0036] For ease of understanding, the following description is based on an example in which the earphone 100 is placed on a horizontal plane and the first symmetry plane 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, Fig.14 The straight line Q1 where points A and B are located can be regarded as the projection of the horizontal plane on the first symmetry plane S1. The straight line Q1 is tangent to the first projection 1' at point A and to the second projection 2' at point B. The first symmetry plane S1 is parallel to Fig.14 The plane of the paper shown.

[0037] In some embodiments, the third projection 3' includes an inner contour curve and an outer contour curve. The inner contour curve corresponds to the contour of one side of the ear hook 3 close to the helix when worn, and the outer contour curve corresponds to the contour of the other side of the ear hook 3 away from the helix when worn. On the first projection 1', with point A as the dividing point, the part connected to the inner contour curve of the third projection 3' is the inner contour of the first projection 1'; the part 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 part connected to the inner contour curve of the third projection 3' is the inner contour of the second projection 2'; the part connected to the outer contour curve of the third projection 3' is the outer contour of the second projection 2'. In some embodiments, with point A and point B as the boundary, the inner contour of the first projection 1', the inner contour of the third projection 3', and the inner contour of the second projection 2' are connected in sequence to form the inner contour of the earphone 100; the outer contour of the first projection 1', the outer contour of the third projection 3', and the outer contour of the second projection 2' are connected in sequence to form the outer contour of the earphone 100.

[0038] In some embodiments, there is a fitting area or a fitting point between the first projection 1' and the second projection 2', and the center point (such as the centroid, the center of area, etc.) of the fitting area or the fitting point can be used as the first characteristic 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' fit together. At this time, a common tangent line Q2 can be determined on the inner contour of the first projection 1' and the inner contour of the second projection 2', and the common tangent line Q2 is tangent to the inner contour of the first projection 1' and the inner contour of the second projection 2' at the first tangent point O. Point O can be used as the first characteristic 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 on the first symmetry plane S1 is the first characteristic point O. In some embodiments, when the sound-emitting part 1 and the abutting part 2 are in a contact structure, 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., the common tangent Q1), the second tangent point of the common tangent Q1 and the first projection 1' is point A, the third tangent point of the common tangent Q1 and the second projection 2' is point B, and the line connecting point A and point B (i.e., line AB, straight line Q1) can be used as a reference line Q1.

[0039] In some embodiments, the inner contour curve of the third projection 3' has at least one point C that is farthest from the first feature point O. In some embodiments, if there are multiple points that are farthest from the first feature point O, at this time, the point closest to the second projection 2' of the abutment portion 2 among these farthest points can be used 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 (such as 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 (such as the position, etc.).

[0040] Define the line between the first feature point O and the second feature point C as the first line OC. In some embodiments, a first auxiliary line Q3 is made through the second feature point C to the side biased towards the first projection 1', and the first angle between the first auxiliary line Q3 and the first line (i.e., line OC) has a first preset value range, and 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 between the third feature point E and the second feature point C is the second line, and the second line (i.e., line CE) is colinear with the first auxiliary line Q3. In some embodiments, the third feature point E can be used as the dividing 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 line CE (e.g., the portion corresponding to the arc CE segment) is arranged on the side of the second 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 the inner contour of part of the ear hook 3 corresponding to the second line CE to interfere with and squeeze the part from the helix to the concha of the user's ear. If the first angle between the second line CE and the first line OC is too large, it may cause the size of the ear hook 3 to be too large, causing the sound-emitting part 1 to interfere with the user's auricle or block the user's ear canal opening. In some embodiments, in order to prevent the sound-emitting part 1 from blocking the user's ear canal opening, and to prevent the sound-emitting part 1 from interfering with the auricle or the antihelix or helix, the angle between the second line CE and the first line may be 27°-37°. Exemplarily, the angle between the second line CE and the first line may be 33°.

[0041] In some embodiments, the inner contour curve portion (i.e., arc CE) of the third projection 3' corresponding to the second line CE has a first arc length, and the ratio between the first arc length and the length of the second line CE can be defined as a first arc-chord ratio. The first arc-chord ratio can reflect the flatness of the arc CE corresponding to the second line CE. The larger the first arc-chord ratio, the greater the convexity of the arc CE corresponding to the second line CE, the larger the area within the arc CE, and the corresponding part of the ear hook 3 is less likely to interfere with the part of the ear from the helix to the concha cavity. The smaller the first arc-chord ratio, the flatter the arc CE corresponding to the second line CE, the smaller the area within the arc CE, and the corresponding part of the ear hook 3 may interfere with the part of the ear from the helix to the concha cavity (e.g., the helix, anti-helix). In some embodiments, the first arc-chord ratio can be 1.10-1.25. Exemplarily, the first arc-chord ratio can be 1.14.

[0042] In some embodiments, a second auxiliary line Q4 is drawn through the second feature point C to the side biased toward the second projection 2', and the second angle between the second auxiliary line Q4 and the first line OC has a second preset value range, and the intersection point H of the curve segment connected to the second projection 2' on the inner contour curve of the third projection 3' 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 line, and the third line CH is colinear with the second auxiliary line Q4. In some embodiments, the fourth feature point H can be used as the dividing 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 angle (i.e., ∠OCH) between the fourth line CH and the first line OC is too small, the abutment portion 2 may over-compress the back of the user's auricle. If the second angle between the fourth line CH and the first line OC is too large, the size of the ear hook 3 may be too large, causing the abutment portion 2 to interfere with the head skin tissue on the back of the user's auricle. In some embodiments, in order to prevent the abutting portion 2 from over-pressing the ear and preventing the abutting portion 2 from interfering with the user's head skin, the angle between the fourth line CH and the first line OC may be 34°-49°. For example, the angle between the fourth line CH and the first line OC may be 40°.

[0043] 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 a second arc-chord ratio. The second arc-chord ratio can reflect the flatness 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 the head skin on the back of the auricle. The smaller the second arc-chord ratio, the flatter the arc CH corresponding to the third line CH, the smaller the area within the arc CH, and 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. Exemplarily, the second arc-chord ratio can be 1.17.

[0044] In some embodiments, the 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 line 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 regarded 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 roughly toward the direction of the user's ear canal opening.

[0045] The line connecting the fifth characteristic point N and the sixth characteristic point M is defined as the fifth line (i.e., line NM). The curve segment (i.e., arc NM) of the first projection 1' corresponding to the fifth line NM has a third arc length, and the ratio of the third arc length (i.e., arc NM) to the length of the fifth line (i.e., line NM) is defined as a third arc-chord ratio. The third arc-chord ratio can reflect the shape of the first projection 1', thereby reflecting the shape of the sound-generating part 1.

[0046] In some embodiments, the third arc-chord ratio may be 1.4-1.7, so that the arc NM is approximately a semicircle, and the fifth connecting line NM may be regarded as the diameter of the first projection 1', so that the sound-emitting part 1 is spherical or approximately spherical, and the shape of the sound-emitting part 1 is adapted to the concha cavity, thereby improving the wearing comfort of the earphone 10. If the distance between the second characteristic point C and the sixth characteristic point M is too large, the sound-emitting part 1 may block the user's ear canal or interfere with the tragus; if the distance between the second characteristic point C and the sixth characteristic point M is too small, the size of the sound-emitting part 1 may be affected, thereby affecting the listening effect, or causing the sound-emitting part 1 to interfere with the antihelix.

[0047] The clamping force is the force applied to the ear when the sound-generating part 1 and the contact part 2 clamp the ear of the wearer. Figure 8 is an exemplary schematic diagram of the clamping force shown in some embodiments of this specification, such as Figure 8As shown, when the sound-generating portion 1 and the abutting portion 2 clamp the ear of the wearer with an auricle thickness of D, they respectively apply a force F to the ear, and the force F 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 thickness D of the wearer's ear auricle, the greater the distance between the shell of the sound-generating part 1 and the abutting part 2, the greater the deformation of the ear hook 3 caused, and the corresponding deformation force F ’ The bigger.

[0048] In some embodiments, the clamping force may be determined by a force gauge, which measures the clamping force in a manner similar to the force gauge described below for measuring tension.

[0049] As can be seen from the above, the clamping force increases with the thickness of the wearer's auricle. It is necessary to ensure that the clamping force is greater than the lower limit of the clamping force corresponding to the minimum auricle thickness so that the ear clip earphone can be stably worn on the ear of the user with a smaller auricle thickness; and it is necessary to ensure that the clamping force is less than the upper limit of the clamping force corresponding to the maximum auricle thickness so as to avoid the ear clip earphone causing discomfort to the user with a thicker auricle. For example, after many tests, it was found that when the minimum auricle thickness D s When it is 3.5mm, the corresponding lower limit of clamping force is F s The maximum auricle thickness is 0.20N, which can ensure the minimum auricle wearing stability; the maximum auricle thickness is D m is 5.6mm, and its corresponding clamping force upper limit F m The clamping force is 0.70N, which can ensure the maximum comfort of the auricle. Therefore, when the auricle thickness is between 3.5mm-5.6mm, the clamping force is not less than 0.20N and not more than 0.70N, so as to take into account both wearing stability and comfort. For example, after many tests, it was found that when the minimum auricle thickness D s is 3.8mm, and the corresponding clamping force lower limit is F s The maximum auricle thickness is 0.25N, which can ensure the minimum auricle wearing stability; the maximum auricle thickness is D m is 5.5 mm, and its corresponding clamping force upper limit F m The clamping force is 0.65 N, which can ensure the comfort of the maximum auricle. Therefore, when the auricle thickness is between 3.8 mm and 5.5 mm, the clamping force is not less than 0.25 N and not more than 0.65 N, thereby ensuring wearing stability and comfort.

[0050] Since the clamping force varies with the thickness of the auricle, the wearing experience of the same ear clip earphone for users with different auricle thicknesses may be quite different. To avoid this problem, it is necessary to adopt a certain mechanism to reduce the difference in the clamping force of the ear clip earphone on the ears of users with different auricle thicknesses while ensuring wearing stability and comfort.

[0051] In some embodiments, the difference between the clamping force on users with small ears and users 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 portion 1 and the abutting portion 2 and the deformation force provided by the ear hook 3. The larger the elastic coefficient, the greater the deformation force caused by the unit distance, resulting in a correspondingly greater clamping force.

[0052] 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 modulus k m In some embodiments, the elastic coefficient of the ear hook can be between 0.01N / mm and 1.6N / mm. 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 coefficient of the ear hook can be between 0.01N / mm-0.24N / mm. For another example, (F m -F s ) / (D m -D s )=(0.65-0.25) / (5.5-3.8)=0.4 / 1.7=0.24N / mm.

[0053] By reducing the elastic modulus of the ear hook, the difference in clamping force between users with small ears and users with large ears can be reduced. Fig. 9 This is an exemplary schematic diagram of the clamping force variation curve corresponding to different elastic coefficients within a certain range according to some embodiments of this specification. The clamping force variation curve can reflect the clamping force corresponding to different auricle thicknesses. L1 is the clamping force variation curve corresponding to an ear hook with an elastic coefficient of 0.075N / mm, and L2 is the clamping force variation curve corresponding to an ear hook with an elastic coefficient of 0.045N / mm. Fig. 9 As shown, as the elastic coefficient decreases, the slope of the clamping force curve decreases, and the difference between the clamping force corresponding to the small ear and the clamping force corresponding to the large ear becomes smaller. For example, δF can represent the minimum ear thickness D s and maximum auricle thickness D m The corresponding clamping force difference, when the elastic coefficient is reduced from 0.075N / mm to 0.045N / mm, the minimum auricle thickness D s and maximum auricle thickness D m The corresponding clamping force difference is reduced from δF1 to δF2.

[0054] The preload force refers to the pressure that the ear hook 3 applies in advance between the sound-generating part 1 and the abutting part 2 in the natural state, that is, the pre-deformation of the ear hook provides a pre-deformation force for making the sound-generating part 1 and the abutting part 2 abut and squeeze each other. When not worn, the ear hook 3 does not undergo further elastic deformation, and the force it applies to the sound-generating part 1 and the abutting part 2 only includes the preload force. Figure 4 As shown, in the non-wearing state, the ear hook 3 applies a preload force F0 to the sound-emitting part 1 and the abutting part 2, respectively, so that the sound-emitting part 1 and the abutting part 2 abut against each other. At this time, the interaction force between the sound-emitting part 1 and the abutting part 2 is equal to the preload force F0. In the wearing state, the ear hook 3 further undergoes elastic deformation, and the force applied to the sound-emitting part 1 and the abutting part 2 includes elastic deformation force and preload force. In other words, the clamping force mentioned above includes elastic deformation force and preload force.

[0055] In some embodiments, the structure of the ear hook 3 (such as shape, components included) can be designed to provide a preload force, thereby ensuring the stability of small ear wear. For example, a titanium sheet can be provided in the ear hook 3 so that the ear hook 3 can provide a preload force. For example, the preload force can be between 0.01N-0.20N. For another example, the preload force can be between 0.01N-0.25N. As an example only, the preload force can be 0.08N.

[0056] In some embodiments, the preload force can compensate for the reduction in clamping force due to the reduction in elastic coefficient. As mentioned above, in order to reduce the difference in clamping force corresponding to the minimum auricle thickness and the maximum auricle thickness, the elastic coefficient can be reduced. However, reducing the elastic coefficient may reduce the clamping force and affect the wearing stability. Fig. 9 As shown in the figure, when the clamping force is provided only by the deformation force, the minimum auricle thickness D is on the straight line L2 after the elastic coefficient is reduced. s The corresponding clamping force is less than the clamping force lower limit F s , resulting in the inability of the ear clip type earphone to be stably worn on the ears of users with small ears. In some embodiments of the present specification, the ear hook 3 applies a pre-tightening force to the sound-emitting part 1 and the abutting part 2 to improve the wearing stability when the elastic coefficient becomes smaller.

[0057] Specifically, in the critical state, the preload force provides all the clamping force, so the maximum value of the preload force F0 is the minimum auricle thickness D s Corresponding clamping force lower limit F s .

[0058] For example, Fig. 9 As shown, when the ear hook is configured to apply a preload force F0, the clamping force change curve changes from straight line L2 to 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 of users with small ears; the maximum auricle thickness is Dm 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 is maintained at δF2. Fig. 9 It can be clearly seen that by applying a preload, the difference between the clamping force on the small-eared user and the clamping force on the large-eared user can be made smaller than δF1, where δF1 is F m and F s The difference between them is equal to 0.40N.

[0059] For example, when the clamping force variation curve is more gentle, the minimum auricle thickness D s The corresponding clamping force is 0.25N, which can ensure the wearing stability of users with small ears; the maximum auricle thickness is 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 is maintained at δF3. That is, when the distance between the shell of the sound-generating part 1 and the abutting part 2 is D s (3.8mm) and D m When the clamping force changes between (5.5mm), the change in clamping force does not exceed 0.20N.

[0060] It should be noted that Fig. 9 The clamping force variation curve shown is for illustrative purposes only and is not intended to limit the scope of the present specification. For example, the relationship between the auricle thickness and the clamping force may be non-linear.

[0061] 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-generating part 1 and the abutting part 2, so that the thin film pressure sensor is squeezed by the sound-generating part 1 and the abutting part 2, thereby measuring the preload force.

[0062] In some embodiments, the preload force can be measured by applying a tensile force to the sound-emitting portion 1 and / or the abutting portion 2. Specifically, a tensile force in the opposite direction to the preload force applied to the sound-emitting portion 1 and / or the abutting portion 2 can be applied to the sound-emitting portion 1 and / or the abutting portion 2 for multiple times. Each applied tensile force causes a certain distance between the sound-emitting portion 1 and the abutting portion 2. Based on the tensile forces applied multiple times and the corresponding distances, the preload force between the sound-emitting portion 1 and the abutting portion 2 can be determined.

[0063] For example, Figure 5 is an exemplary schematic diagram of measuring preload force according to some embodiments of this specification, such as Figure 5As shown, when a pulling 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 pulling 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.

[0064] In some embodiments, the pulling force applied to the sound-emitting portion 1 and / or the abutting portion 2 can be determined by a dynamometer. The dynamometer may include, but is not limited to, a digital dynamometer (such as a digital push-pull dynamometer), a mechanical dynamometer (such as a spring dynamometer), etc. In some embodiments, the distance between the sound-emitting portion 1 and the abutting portion 2 can be determined by a distance meter. The distance meter may include, but is not limited to, a vernier caliper, a laser distance meter, etc.

[0065] Fig. 6A and Figure 6B is an exemplary schematic diagram of determining the pulling force and the corresponding distance according to some embodiments of this specification. Fig. 6A As shown, the auxiliary plate 603 and the angle bracket 601 are fixed in the Y direction, the auxiliary plate 604 and the angle bracket 602 are fixed in the Y direction by adhesive (e.g., quick-drying glue, hot melt adhesive, etc.) or other fixing methods that do not damage the ear clip type earphone structure, and the auxiliary plate 603 and the auxiliary plate 604 are placed on a support surface with a small friction coefficient in the Y direction (e.g., a lubricating oil interface or a support surface on a bearing support). The inner side of the angle bracket 601 in the Z direction and the inner side of the angle bracket 602 in the Z direction are tangent to the two sides of the earphone, respectively, so that the earphone is fixed between the angle bracket 601 and the angle bracket 602. The screw 605 passes through the angle bracket 601 to fix the sound-emitting part 1 in the Y direction of the angle bracket 601, and the nut 606 connects the dynamometer 607 in the Y direction to the angle bracket 602. In some embodiments, the earphone can be further fixed by adhesive (e.g., quick-drying glue, hot melt adhesive, etc.) or other fixing methods that do not damage the ear clip type earphone structure, so that the connection point between the earphone and the two angle brackets is close to the horizontal direction. For example, Fig. 6A As shown, the outer side of the sound-generating part 1 is fixed at point 608-1, and the outer side of the abutting part 2 is fixed at point 608-2, so that the line between the connection point A of the sound-generating part 1 and the angle code 601 and the connection point B of the abutting part 2 and the angle code 602 is parallel to the Y direction. During measurement, the auxiliary plate 604 is fixed, and the auxiliary plate 603 is moved with a pulling force in the Y direction, so that the sound-generating part 1 and the abutting part 2 are pulled apart, and the magnitude of the pulling force is obtained by the dynamometer 607, and the distance between the auxiliary plate 603 and the auxiliary plate 604, that is, the distance between the sound-generating part 1 and the abutting part 2 is obtained by the vernier caliper.

[0066] As another example, Figure 6BAs shown, the clamping device 610 fixes the abutting part 2 through the fastener 610-1, connects one end of the force measuring line 612 to the shell of the sound-emitting part 1 on the side away from the battery compartment (for example, the measuring device is at the maximum cross-section 611 parallel to the horizontal plane) through an adhesive (for example, quick-drying glue, hot melt adhesive, etc.), and connects the other end of the force measuring line 612 to the force gauge 614. The force measuring line 612 is parallel to the Y direction. During measurement, the force gauge 613 is fixed, and the force gauge 614 is moved with the tension in the Y direction, thereby pulling the sound-emitting part 1 to move, so that the sound-emitting part 1 and the abutting part 2 are pulled apart, and the distance between the sound-emitting part 1 and the abutting part 2 is obtained by the vernier caliper 609, and the magnitude of the tension is obtained by the force gauge 607.

[0067] In some embodiments, based on the tension and its corresponding distance, a straight line between the tension and the distance can be obtained through data fitting, and based on the straight line between the tension and the distance, the corresponding preload force between the sound-emitting part 1 and the abutment part 2 when the sound-emitting part 1 abuts the abutment part 2 (that is, the distance between the sound-emitting part and the abutment part is 0 mm) is determined. Figure 7 is an exemplary schematic diagram of a straight line relationship between tension and distance according to some embodiments of this specification. Figure 7 As shown, based on F1, F2, D1 and D2, the relationship straight line y=kx+F0 is obtained by data fitting, and the intersection of the relationship straight line and the Y-axis is the preload force F0, that is, when the distance between the sound-emitting part 1 and the abutting part 2 is 0 mm, the force acting on each other in the abutting direction is determined as the preload force F0.

[0068] In some embodiments, a first magnet may be provided in the sound-generating 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-generating 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, see Fig. 10A and Fig. 10B and its related description.

[0069] In some embodiments, the ear hook 3 may include a material such as metal or alloy having elasticity. In some embodiments, the elastic material may be a linear structure having a length, a strip structure, etc. As an example only, the ear hook 3 may include a titanium sheet.

[0070] For example, 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, and the two ends 31-a and 31-b of the titanium sheet 31 in the length direction are respectively connected to the shell 11 and the abutment part 2. Compared with titanium wire, the use of titanium sheet as the elastic material of the ear hook 3 can reduce the torque at both ends of the titanium sheet, so that the relationship between the clamping force and the distance between the shell 11 of the sound-emitting part 1 and the abutment part 2 is close to a linear relationship.

[0071] In some embodiments, the dimension of the titanium sheet in the width direction may be between 1.5 mm and 3 mm, and the dimension in the thickness direction may be between 0.15 mm and 0.3 mm. In some embodiments, the elastic coefficient of the ear hook is determined based on the Young's modulus bending stiffness, thickness, length and width of the elastic material in the ear hook 3. Specifically, the thickness h and length L of the titanium sheet are determined based on the outer dimensions of the ear hook 3, and further based on the Young's modulus bending stiffness of titanium and the range of the elastic coefficient of the ear hook, the dimension of the titanium sheet in the width direction and the dimension in the thickness direction can be determined.

[0072] In some embodiments of the present specification, the ear hook 3 provides a pre-tightening force for the shell 111 of the sound-emitting part 1 and the abutment part 2, so as to ensure that when the difference in clamping force between the wearer with small ears and the wearer with large ears is reduced by reducing the elastic coefficient of the ear hook 3, the clamping force on the small ear can be maintained unchanged, thereby improving the stability and comfort of wearers with different auricle thicknesses.

[0073] like Fig.14 As shown, the second characteristic point C is the protruding point of the ear hook 3, and the stress of the ear hook 3 at the second characteristic point C is relatively large. In order to avoid excessive concentration of regional stress on the ear hook 3 and increase the service life of the ear hook 3, the protrusion of the third projection 3' near the second characteristic point C should not be too large. However, if the protrusion of the third projection 3' near the second characteristic point C is too small, it will affect the overall structure and size of the earphone 10, and may cause the ear hook 3 to interfere with the user's ear, affecting the wearing stability of the earphone 100.

[0074] In some embodiments, in order to characterize the protrusion of the ear hook 3 near the second characteristic point C, two arc segments (e.g., arc CT1 and arc CT2) with equal arc lengths can be determined on both sides of the inner contour curve of the third projection 3' with the second characteristic point C as the center, and the line between the ends of the two arc segments (e.g., arc CT1 and arc CT2) away from the second characteristic point C is the line T1T2, and the arc segment corresponding to the line T1T2 is the arc T1T2. The arc chord ratio between the arc length of arc T1T2 and the length of line T1T2 can represent the curvature of the corresponding arc T1T2, thereby representing the protrusion of the inner contour curve at the corresponding position of arc T1T2.

[0075] In some embodiments, in order to accurately characterize the protrusion of the ear hook 3 near the second characteristic point C, point T1 and point T2 should not be too close or too far from the second characteristic point C. In some embodiments, the arc lengths of arcs CT1 and CT2 may be 2.5 mm to 3.5 mm. In some embodiments, in order to further improve the accuracy of the characterization of the protrusion of the ear hook 3 near the second characteristic point C, the preset arc length range may be 2.7 mm to 3.2 mm.

[0076] In some embodiments, when the sound-emitting portion 1 is not in contact with the abutting portion 2, in order to avoid excessive concentration of stress in the area of ​​the ear hook 3 and ensure the wearing stability of the earphone 10, the arc-chord ratio between the arc length of the arc T1T2 and the length of the line T1T2 may be 1.00-1.10. In some embodiments, in order to further avoid excessive concentration of stress 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 the arc T1T2 and the length of the line T1T2 may be 1.01-1.07. Exemplarily, the arc-chord ratio between the arc length of the arc T1T2 and the length of the line T1T2 may be 1.04.

[0077] In some embodiments, when the sound generating part 1 and the abutting part 2 abut each other, the arc-chord ratio between the arc length of arc T1T2 and the length of line T1T2 may be 1.03-1.12. For example, the arc-chord ratio between the arc length of arc T1T2 and the length of line T1T2 may be 1.06.

[0078] Fig. 10A and Fig. 10B It is a schematic diagram of the structure of an ear clip type earphone according to some embodiments of the present specification.

[0079] Fig. 10A and 10B The ear clip headphones shown and Figure 1 The ear clip-on earphone shown is similar and also includes a sound-generating portion 1, abutting portion 2 and an ear hook 3. Fig. 10A and 10B In the ear clip earphone shown, a first magnet 21 is provided in the sound-emitting part 1, and a second magnet 22 is provided in the abutting 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 abutting part 2. Compensating for the clamping force provided by the ear hook 3 to the sound-emitting part 1 and the abutting part 2 can be understood as a part 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 arranged on the inner side of the area where the sound-emitting part 1 and the abutting part 2 abut. In some embodiments, a flexible body is provided in the area where the shell abuts the abutting part. Reference Figure 3 The area where the shell 11 abuts the abutting portion 2 is provided with a flexible body 112, and the area where the abutting portion 2 abuts is provided with a flexible body 23. The first magnet 21 is embedded in the flexible body 112 of the shell 11, and the second magnet 22 is embedded in the flexible body 23 of the abutting portion 2, so that the distance between the first magnet and the second magnet can be shortened, so that the size and direction of the attractive force are more in line with the ideal state. At the same time, the flexible body covers the first magnet and the second magnet, which will not affect the wearing comfort.

[0080] In some embodiments, the first magnet and / or the second magnet may include a Halbach magnet array composed of a plurality of magnets. Exemplarily, the plurality of magnets may be arranged along the length direction of the magnet (the first magnet and / or the second magnet), and the directions of the magnetic attraction of the plurality of magnets may be different, so that the magnetic attraction of the magnet generated based on the superposition of the magnetic attraction of the plurality of magnets is weakened or enhanced in different directions. For example, the magnetic attraction of the magnet away from the abutment area is weakened, and the magnetic attraction of the magnet close to the abutment area is enhanced, so that the same magnitude of magnetic attraction can be generated with fewer magnets, thereby making the structure of the ear clip headphones more compact, lighter, and improving the wearing comfort.

[0081] In some embodiments, the first magnet 21 is part of the sound generating assembly 12. Fig. 10A As shown, the magnet 123 of the sound generating assembly 12 can be used as the first magnet 21. Figure 3 The sound-generating component 12 can be accommodated in the accommodating cavity 111 of the sound-generating part 1, and further includes a diaphragm 121 and a coil 122, and the coil 122 can be connected to the diaphragm 121. The coil 122 is located in the magnetic field of the magnet 123, and when powered, the coil 122 can drive the diaphragm 121 to vibrate, and the first magnet 123 is arranged on one side of the sound-generating component 12 close to the concha cavity relative to the diaphragm 121.

[0082] In some embodiments, the first magnet 21 and the sound generating assembly 12 are independent of each other. Fig. 10B As shown, the first magnet 21 is located outside the sound-generating assembly 12 , and the sound-generating assembly 12 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 .

[0083] In the wearing state, the attraction 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 abutting part 2. Fig.11 As shown, the first magnet 21 and the second magnet 22 can attract each other, generating an attraction force F A The clamping force F provided by the ear hook 3 to the sound-emitting part and the abutting part is compensated. That is, 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):

[0084]

[0085] Among them, 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 a non-wearing state, and x can represent the increased distance between the first magnet 21 and the second magnet 22 in a wearing state due to the movement of the sound-emitting part and the abutting part.

[0086] It can be seen from formula (1) that the larger the distance increase x between the sound-generating part 1 and the contact part 2 is, the larger the distance d between the first magnet 21 and the second magnet 22 is, and the attraction force F between the first magnet 21 and the second magnet 22 is. A Reduce accordingly.

[0087] In some embodiments, a force gauge and pads of different thicknesses (e.g., silicone pads, thick paper sheets, rubber pads, etc.) can be used to measure the different attractive forces corresponding to different distances between the first magnet 21 and the second magnet 22. Specifically, the ear hook 3 of the ear clip earphone can be cut off, and then any one of the sound-emitting part 1 and the abutting part 2 can be fixed, and the other one of the sound-emitting part 1 and the abutting part 2 can be connected to the force gauge. The sound-emitting part 1, the abutting part 2 and the force gauge need to be similar to Fig. 6A and Figure 6B Arranged in parallel in the Y direction. Pads of different thicknesses are placed between the sound-emitting part 1 and the abutting part 2 to control the distance between the first magnet 21 and the second magnet 22, and a force gauge is used to measure the attraction between the first magnet 21 and the second magnet 22 when pads of different thicknesses are placed. In some embodiments, the attraction can be measured by a thin film pressure sensor. Specifically, after cutting off the ear hook 3 of the ear clip-type earphone, a thin film pressure sensor and pads of different thicknesses are placed between the sound-emitting part 1 and the abutting part 2, so that the thin film pressure sensor is squeezed by the attraction between the first magnet 21 in the sound-emitting part 1 and the second magnet in the abutting part 2, thereby measuring the attraction corresponding to different distances between the first magnet 21 and the second magnet 22.

[0088] In some embodiments, in the non-wearing state, the ear hook 3 can provide a pre-tightening force to make the sound-emitting part 1 and the abutting part 2 abut against each other. For a detailed description of the pre-tightening force, see Figure 1 And the related description will not be repeated here.

[0089] In some embodiments, in the non-wearing state, the sound-emitting portion 1 and the abutting portion 2 are not in contact. Fig.12 As shown, in the non-wearing state, the sound-emitting part 1 and the abutting part 2 are not in contact with each other, 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.

[0090] In some embodiments, in the wearing state, the clamping force that the ear hook 3 can provide for the sound-emitting part 1 and the abutting part 2 includes the deformation force generated by the elastic deformation of the ear hook 3 and the attraction force between the first magnet 21 and the second magnet 22. In some embodiments, the clamping force can also include the pre-tightening force provided by the ear hook 3 for the abutment between the sound-emitting part 1 and the abutting part 2.

[0091] 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 detailed information on measuring the clamping force by a force gauge, see Figure 1 Related description.

[0092] As can be seen from the above, in order to ensure the stability of the ear clip earphones when worn on the wearer's ears, the clamping force (i.e., the sum of the deformation force and the attraction force, or the sum of the deformation force, the attraction force and the preload force) provided by the ear hook 3 needs to be greater than the lower limit of the clamping force corresponding to the minimum auricle thickness; and it is necessary to ensure that the clamping force is less than the upper limit of the clamping force corresponding to the maximum auricle thickness, so as to avoid the ear clip earphones causing discomfort to users with thick auricles. In some embodiments, when the distance between the shell of the sound-emitting part 1 and the abutment part 2 is between 3.5mm-5.6mm, the clamping force (i.e., the sum of the deformation force and the attraction force, or the sum of the deformation force, the attraction force and the preload force) provided by the ear hook 3 can be between 0.20N-0.70N. For example, the clamping force (i.e., the sum of the deformation force and the attraction force, or the sum of the deformation force, the attraction force, and the 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 the clamping force corresponding to the minimum auricle thickness of 0.20N and the upper limit of the clamping force corresponding to the maximum auricle thickness of 0.70N. In some embodiments, when the distance between the shell of the sound-emitting part 1 and the abutment part 2 is between 3.8mm and 5.5mm, the clamping force (i.e., the sum of the deformation force and the attraction force, or the sum of the deformation force, the attraction force, and the preload force) provided by the ear hook 3 can be between 0.25N and 0.65N. For another example, the clamping force (i.e., the sum of the deformation force and the attraction force, or the sum of the deformation force, the attraction force, and the 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 the clamping force corresponding to the minimum auricle thickness of 0.25N and the upper limit of the clamping force corresponding to the maximum auricle thickness of 0.65N.

[0093] As can be seen from the above, the larger the distance x between the sound-emitting portion 1 and the abutting portion 2 is, the greater the deformation force F provided by the ear hook 3 is. k The larger the attraction F between the first magnet 21 and the second magnet 22 is, the AThe smaller the first magnet 21 and the second magnet 22, the difference between the clamping force on the small-ear user and the clamping force on the large-ear user can be further reduced based on the attraction between the first magnet 21 and the second magnet 22. For example, the clamping force is limited to between 0.3N and 0.5N, that is, the difference between the clamping force on the small-ear user and the clamping force on the large-ear user is reduced to 0.20N at the same time. In some embodiments, when the distance between the shell of the sound-emitting part 1 and the abutment part 2 is between 3.8mm and 5.5mm, the change 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 that the difference between the clamping force on the small-ear user and the clamping force on the large-ear user is small, it can be based on the minimum auricle thickness D s , Clamping force lower limit F s , Maximum auricle thickness D m , Clamping force upper limit F m , it is limited that when the distance between the shell of the sound-emitting part 1 and the abutting part 2 changes between 3.8 mm and 5.5 mm, the change of the clamping force does not exceed 0.20 N (i.e. F m and F s difference).

[0094] In some embodiments, when the distance between the shell of the sound-emitting part 1 and the abutting part 2 is between 3.8 mm and 5.5 mm, the attraction between the first magnet 21 and the second magnet 22 may vary between 0.05 N and 0.10 N.

[0095] Fig.13A and Fig. 13B is an exemplary schematic diagram of a clamping force variation curve according to some embodiments of this specification. Fig.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 magnet and the second magnet is x0. Deformation force F k = kx, where k is the spring constant and x is the distance between the sound-generating part and the abutting part. A It can be calculated based on the formula (1) mentioned above. When the distance between the shell of the sound-emitting part and the abutment part is between x1 and x2, the deformation force F provided by the ear hook is k In F sk to F mk The first magnet and the second magnet provide an attractive force F A In F ma to F sa Between, clamping force F j In F sj to F mj Among them, F sj =F ma +F sk , Fmj =F mk +F sa For example, when the distance between the sound-emitting part shell and the abutment part is between 3.8mm and 5.5mm, the corresponding deformation force is between 0.27N and 0.35N. In order to ensure that the clamping force is between 0.3N and 0.4N, the attraction force to be compensated is between 0.03 (0.3-0.27=0.03)N and 0.05 (0.4-0.35=0.05)N. Fig.13A It can be seen that by setting appropriate parameters (such as k, K, m1, m2, x0, etc.), it is possible to achieve F in the range of x1-x2. k Increment and F A The reductions offset each other, making the total clamping force F j It remains basically stable within the range of x1-x2, so that the user experience of the ear clip headphones for users with different ear auricle thicknesses remains consistent.

[0096] In some embodiments, the ear hook further provides a pre-tightening force, and the total clamping force can be kept within a suitable range by adjusting the magnitude of the pre-tightening force and the attraction force. Fig. 13B As shown, the ear hook can provide deformation force F at the same time k , preload force F0 ’ and attraction F A At this time, the clamping force of the ear hook on the user with large ears has exceeded the upper limit of the preload force. ’ to F0", so that the ear hook provides Fig. 13B Clamping force F shown j ’ At the minimum auricle thickness D s and maximum auricle thickness D m Within the range, the clamping force F j ’ The corresponding curve is relatively flat and within the appropriate clamping force range, indicating that the combination of preload force and attraction force can improve the wearing stability and comfort of ear clip headphones and reduce the difference in clamping force between users with large ears and users with small ears.

[0097] In some embodiments, the elastic coefficient of the ear hook can be between 0.01 N / mm and 0.23 N / mm. For a detailed description of the elastic coefficient of the ear hook, see Figure 1 and its related description.

[0098] In some embodiments, the ear hook may include a titanium sheet and a flexible layer wrapped around the outside of the titanium sheet. In some embodiments, the two ends of the titanium sheet in the length direction may be connected to the housing and the abutment portion, respectively. In some embodiments, the dimension of the titanium sheet in the width direction may be between 1.5 mm and 3 mm, and the dimension in the thickness direction may be between 0.15 mm and 0.3 mm. For more descriptions of the material and shape of the ear hook, see Figure 1 and its related description.

[0099] In some embodiments of the present specification, a first magnet is arranged in the sound-emitting part and a second magnet is arranged in the abutting part, so that the clamping force is compensated based on the attraction between the first magnet and the second magnet, wherein, when the distance between the outer shell of the sound-emitting part and the abutting part is larger, the clamping force is larger, and the compensation of the clamping force by the attraction is smaller, thereby reducing the difference in clamping force between wearers with small ears and wearers with large ears, and improving the comfort of wearers with different auricle thicknesses.

[0100] The beneficial effects that may be brought about by the embodiments of this specification include but are not limited to: (1) the ear hook provides a pre-tightening force for the shell and the abutment of the sound-emitting 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 reducing the elastic coefficient of the ear hook, the clamping force on the small ear can remain unchanged, thereby improving the stability and comfort of wearers with different thicknesses of auricle; (2) by arranging a first magnet in the sound-emitting 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, wherein the greater the distance between the shell and the abutment of the sound-emitting 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 thicknesses of auricle. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other beneficial effects that may be obtained.

[0101] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, 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, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0102] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.

[0103] In addition, it will be understood by those skilled in the art that various aspects of this specification may be illustrated and described by a number of patentable categories or situations, including any new and useful process, machine, product or combination of substances, or any new and useful improvements thereto. Accordingly, various aspects of this specification may be performed entirely by hardware, entirely by software (including firmware, resident software, microcode, etc.), or by a combination of hardware and software. The above hardware or software may be referred to as "data blocks", "modules", "engines", "units", "components" or "systems". In addition, various aspects of this specification may be represented as a computer product located in one or more computer-readable media, which includes computer-readable program code.

[0104] A computer storage medium may include a propagated data signal containing computer program code, for example, in baseband or as part of a carrier wave. The propagated signal may be in a variety of forms, including electromagnetic, optical, etc., or a suitable combination. A computer storage medium may be any computer-readable medium other than a computer-readable storage medium, which can be connected to an instruction execution system, device or apparatus to communicate, propagate or transmit the program for use. The program code on the computer storage medium may be transmitted via any suitable medium, including radio, cable, fiber optic cable, RF, or similar media, or any combination of the above media.

[0105] The computer program code required for the operation of each part of this specification 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 language, Visual Basic, Fortran2003, Perl, COBOL2002, PHP, ABAP, dynamic programming languages ​​such as Python, Ruby and Groovy, or other programming languages, etc. The program code can be run entirely on the user's computer, or run on the user's computer as an independent software package, or run partially on the user's computer and partially on a remote computer, or run 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 form, such as a local area network (LAN) or a 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).

[0106] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some currently considered useful utility model embodiments through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing processing device or mobile device.

[0107] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more utility model embodiments, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this specification are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0108] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate 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 change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0109] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this specification are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the contents of this specification, documents that limit the broadest scope of the claims of this specification (currently or later attached to this specification) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the materials attached to this specification are inconsistent or conflicting with the contents described in this specification, the descriptions, definitions, and / or use of terms in this specification shall prevail.

[0110] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. An ear clip type earphone, characterized in that: The ear clip type earphone comprises: The sound-emitting part is configured to be located in the wearer's concha cavity and to contact the inner wall of the concha cavity when the wearer is wearing the wearer, and the sound-emitting part includes: A housing having a receiving cavity; A sound-generating component, contained in the accommodating cavity; a sound outlet hole, located on the housing, configured to output the sound generated by the sound-generating component; an abutment portion, wherein the abutment portion is configured to abut against the back side of the auricle of the wearer in a wearing state; An ear hook, which, in a worn state, is configured to bypass the antihelix and the auricle of the wearer, is connected to the sound-generating portion and the abutting portion, and provides a clamping force for the sound-generating portion and the abutting portion to clamp on both sides of the auricle; Wherein, a first magnet is arranged in the sound-emitting part, and a second magnet is arranged in the abutting part, and the first magnet and the second magnet attract each other to compensate for the clamping force between the sound-emitting part and the abutting part.

2. The ear clip type headphone according to claim 1, wherein when the ear clip type headphone is not worn, the sound emitting portion is not in contact with the abutting portion.

3. The ear-clip earphone according to claim 2, characterized in that: The elastic coefficient of the ear hook is between 0.01N / mm and 0.24N / mm.

4. According to the ear clip earphone according to claim 2, when the distance between the shell of the sound-emitting part and the abutment part is between 3.8mm-5.5mm, the clamping force provided by the ear hook, the first magnet and the second magnet is between 0.25N-0.65N.

5. The ear-clip earphone according to claim 2, when the distance between the shell of the sound-emitting part and the abutment part is between 3.8 mm and 5.5 mm, the change of the clamping force jointly provided by the ear hook, the first magnet and the second magnet does not exceed 0.20 N.

6. The ear-clip headphone according to claim 2, when the distance between the shell of the sound-emitting part and the abutting part is between 3.8 mm and 5.5 mm, the attraction force between the first magnet and the second magnet attracting each other changes between 0.05 N and 0.10 N.

7. According to the ear-clip earphone according to claim 1, the sound-generating component includes a diaphragm, a coil and the first magnet; the coil is connected to the diaphragm, the coil is located in the magnetic field of the first magnet, and when powered on, the coil drives the diaphragm to vibrate.

8. The ear clip headphone according to claim 7, wherein the first magnet is arranged on a side of the sound-emitting component close to the cavum concha relative to the diaphragm. 9 . The ear clip headphone according to claim 7 , wherein the first magnet and the second magnet are respectively arranged inside a region where the sound emitting portion and the abutting portion abut against each other.

10. The ear-clip headphone according to claim 4, wherein a flexible body is provided in the area where the shell and the abutting portion abut each other, the first magnet is embedded in the flexible body of the shell, and the second magnet is embedded in the flexible body of the abutting portion.

11. The ear-clip earphone according to claim 1, wherein the ear hook comprises a titanium sheet and a flexible layer wrapped around the outside of the titanium sheet, the shell and the abutment portion are respectively connected at two ends of the titanium sheet in the length direction, the dimension of the titanium sheet in the width direction is between 1.5 mm and 3 mm, and the dimension in the thickness direction is between 0.15 mm and 0.3 mm.

12. The ear clip type earphone according to claim 1, wherein a flexible body is provided in an area of ​​the shell body abutting against the abutting portion.

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