Ear cap and earphone

Abstract

The utility model discloses an ear cap and an earphone, the ear cap is applied to the earphone, the earphone comprises an earphone body, and the earphone body is provided with a sound outlet tube; the ear cap comprises a mounting part, a sealing part and a deformable connecting part; the mounting part is used for mounting the sound outlet tube; the sealing part is arranged around the peripheral side of the mounting part; the deformable connecting part is located between the mounting part and the sealing part and is connected with the mounting part and the sealing part, the mounting part, the sealing part and the connecting part jointly define a deformation cavity, and a first opening communicated with the deformation cavity is formed in the end, away from the connecting part, of the sealing part. The sealing part can move relative to the earphone body and the mounting part according to the specific shape of the ear canal of the user so as to adapt to the shape of the ear canal of the user, so that the axial lead of the sealing part is parallel to the axial lead of the ear canal as much as possible, and the supporting force of each part of the fitting part of the sealing part and the ear canal is basically uniform; and the sealing failure of the fitting part of the sealing part and the ear canal caused by unbalanced stress at the fitting part of the sealing part and the ear canal is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of earphones, and in particular to an ear cap and an earphone. Background Art

[0002] There are two main types of headphones: in-ear headphones and over-ear headphones. In-ear headphones usually have ear caps on the headphone ports. In-ear headphones usually use a sealed method to isolate noise from the outside. When the ear caps of in-ear headphones are inserted into the user's ear canal, a closed cavity is formed between the ear caps and the ear canal. When the axis of the ear caps is parallel to the axis of the ear canal, the supporting forces of the fitting parts of the ear caps and the ear canal are basically the same, and the sealing of the fitting parts of the ear caps and the ear canal is better.

[0003] However, since the shapes of users' ear canals are diverse, the axis line of the ear cap is easily not parallel to the axis line of the ear canal, causing the axis line of the ear cap to be tilted relative to the axis line of the ear canal. At this time, the force at the fitting part between the ear cap and the ear canal is unbalanced, causing the ear cap to easily wrinkle, thereby causing the seal at the fitting part between the ear cap and the ear canal to fail. Utility Model Content

[0004] The present application provides an ear cap and an earphone, so that the axis line of the sealing part is as parallel as possible to the axis line of the ear canal, so that the supporting force at each location of the fitting part between the sealing part and the ear canal is basically uniform.

[0005] In a first aspect, the present application provides an ear cap for use with an earphone, wherein the earphone comprises an earphone body having a sound outlet tube; the ear cap comprises: a mounting portion, wherein the mounting portion is used to mount the sound outlet tube; a sealing portion, wherein the sealing portion is arranged around the circumference of the mounting portion; a deformable connecting portion, which is located between the mounting portion and the sealing portion and connects the mounting portion and the sealing portion; wherein the mounting portion, the sealing portion and the connecting portion jointly define a deformation cavity, and a first opening communicating with the deformation cavity is provided at one end of the sealing portion away from the connecting portion.

[0006] In a second aspect, the present application further provides an earphone, comprising an earphone body and an ear cap, wherein the earphone body has a sound outlet tube, a sound outlet hole is provided at the end of the sound outlet tube, and the sound outlet tube extends into the deformation cavity.

[0007] The beneficial effects of the present application are as follows: the mounting portion is connected to the sealing portion through the connecting portion, and the connecting portion can be deformed, so that the sealing portion can have freedom and movement margin in the X-axis direction, the Y-axis direction and the Z-axis direction relative to the mounting portion, so that when the earphone is worn, the sealing portion can move relative to the earphone body and the mounting portion according to the specific shape of the user's ear canal to adapt to the shape of the user's ear canal, so that the axis line of the sealing portion is as parallel as possible to the axis line of the ear canal, so that the supporting force of each part of the fitting part between the sealing portion and the ear canal is basically uniform, thereby preventing the sealing failure of the fitting part between the sealing portion and the ear canal due to the imbalance of force at the fitting part between the sealing portion and the ear canal; in addition, when the earphone body moves or exercises, since the earphone body can move with the mounting portion compared to the sealing portion, the speed inertia of the earphone body has less influence on the sealing portion, so that the inertial force acting on the sealing portion is smaller, thereby reducing the possibility that the inertial force of the sealing portion is greater than the friction between the sealing portion and the inner wall of the ear canal, and reducing the risk of loosening of the earphone when worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 A schematic diagram of a case in which the axis of the ear cap is parallel to the axis of the ear canal in the related art;

[0010] Figure 2 A schematic diagram of a case where the axis line of the ear cap is not parallel to the axis line of the ear canal in the related art;

[0011] Figure 3 This is a schematic diagram of the structure of an ear cap in one embodiment of the present application;

[0012] Figure 4 This is a schematic diagram of the structure of an earphone inserted into the ear canal in one embodiment of the present application;

[0013] Figure 5 This is a schematic diagram of the structure of an ear cap in another embodiment of the present application;

[0014] Figure 6 This is a schematic diagram of the structure of an ear cap in another embodiment of the present application;

[0015] Figure 7 This is a schematic diagram of the structure of an ear cap in another embodiment of the present application;

[0016] Figure 8This is a schematic structural diagram of a projection of an ear cap on a plane perpendicular to the sealing portion in one embodiment of the present application;

[0017] Fig. 9 This is a schematic structural diagram of a projection of an ear cap on a plane perpendicular to the sealing portion in another embodiment of the present application;

[0018] Fig.10 Schematic diagram of the structure of the earphone in one embodiment of the present application.

[0019] Reference numerals:

[0020] 11. Contact portion; 12. Fixing portion; 20. Sealing portion; 21. Deformation cavity; 22. First opening; 30. Mounting portion; 31. Mounting channel; 32. Card slot; 40. Connecting portion; 50. Sound absorbing body; 61. First connecting point; 62. Second connecting point; 63. First connecting line; 70. Earphone body; 71. Sound outlet tube; 72. Sound pickup hole; 73. Card block; 80. Ear canal. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] like Figure 1 As shown, in the related art, the ear cap generally includes a contact portion 11 and a fixing portion 12, and the contact portion 11 and the fixing portion 12 are integrally formed. The contact portion 11 is used to contact the ear canal 80. When the ear cap is inserted into the ear canal 80, a closed cavity is formed between the contact portion 11 of the ear cap and the ear canal 80. When the axis line N1 of the contact portion 11 is parallel to the axis line N2 of the ear canal 80, the supporting forces of the fitting parts of the ear cap and the ear canal 80 are basically the same, and the sealing performance of the fitting parts of the ear cap and the ear canal 80 is better.

[0023] However, if Figure 2 As shown, since the shapes of the user's ear canal 80 are various, the axis line of the contact portion 11 is easily not parallel to the axis line of the ear canal 80, so that the axis line N1 of the contact portion 11 is inclined relative to the axis line N2 of the ear canal 80. At this time, the force at the fitting part between the contact portion 11 and the ear canal 80 is unbalanced, which makes the ear cap prone to wrinkles, thereby causing the seal at the fitting part between the ear cap and the ear canal 80 to fail, and external noise can easily enter the ear canal 80 through the failed seal.

[0024] On the one hand, based on the above-mentioned problems, the present application provides an ear cap and an earphone to solve the problem in the related art that after the ear cap is inserted into the ear canal 80, the axis line of the contact portion 11 is easily not parallel to the axis line N2 of the ear canal 80, resulting in failure of the seal at the fitting point between the ear cap and the ear canal 80.

[0025] In a first aspect, the present application provides an ear cap, such as Figure 3 and Figure 4 As shown, the ear cap is applied to the earphone, and the earphone includes an earphone body 70, and the earphone body 70 has a sound outlet tube 71; it should be noted that the earphone body 70 is the main part of the earphone, and the earphone can be an in-ear wired earphone or a wireless earphone, and the earphone can be communicated and connected with a playback device such as a mobile phone, a laptop computer, a desktop computer, an MP3, a wearable audio device, etc. The sound outlet tube 71 is used to be inserted into the user's ear canal 80, and the end of the sound outlet tube 71 can be provided with a sound outlet hole (not shown in the figure). When the sound outlet tube 71 is inserted into the ear canal 80, the sound outlet hole is located in the ear canal 80, and the sound played by the playback device can be transmitted to the ear canal 80 through the sound outlet hole in turn. The specific working principle of the earphone has long been disclosed in the relevant technology, and this application will not be repeated. The ear cap can prevent the ear canal 80 from being damaged by direct contact with the sound outlet tube 71, and the ear cap can bring good wearing comfort to people.

[0026] Specifically, see Figure 3 and Figure 4 As shown, the ear cap includes a mounting portion 30 , a sealing portion 20 and a deformable connecting portion 40 .

[0027] The mounting portion 30 is used to mount the sound outlet tube 71, the sealing portion 20 is arranged around the circumference of the mounting portion 30, and the connecting portion 40 is located between the mounting portion 30 and the sealing portion 20, and connects the mounting portion 30 and the sealing portion 20. It should be noted that the connecting portion 40 is used to connect the mounting portion 30 with the sealing portion 20, the sealing portion 20, the connecting portion 40 and the mounting portion 30 can be integrally formed, the sealing portion 20, the connecting portion 40 and the mounting portion 30 can be made of the same material, or the sealing portion 20, the connecting portion 40 and the mounting portion 30 can be made of different materials.

[0028] The mounting portion 30, the sealing portion 20 and the connecting portion 40 jointly define a deformation cavity 21, and the end of the sealing portion 20 away from the connecting portion 40 is provided with a first opening 22 communicating with the deformation cavity 21. It should be noted that when the earphone needs to be worn, the mounting portion 30 is connected to the sound outlet tube 71 of the earphone body 70 to install the ear cap on the earphone body 70, and then the sound outlet tube 71 with the ear cap installed is inserted into the ear canal 80. When the ear cap is inserted into the ear canal 80, relative to the second end of the sealing portion 20, the end of the sealing portion 20 away from the connecting portion 40 is located deeper in the ear canal 80, and the outer peripheral side of the sealing portion 20 contacts the ear canal 80 to form a closed cavity, and the sound transmitted from the earphone can be transmitted to the ear canal 80.

[0029] It should also be noted that the mounting portion 30 is connected to the sealing portion 20 via the connecting portion 40, and the connecting portion 40 can be deformed so that the sealing portion 20 can have an X-axis direction and a Y-axis direction (such as Figure 8 ) and the degrees of freedom and movement margin in the Z-axis direction, so that when the ear cap is installed on the earphone body 70, the sealing part 20 is relatively free in the X-axis direction and the Y-axis direction (such as Figure 8 ) and Z-axis directions, so that when the earphone is worn, the sealing portion 20 can move relative to the earphone body 70 and the mounting portion 30 according to the specific shape of the user's ear canal 80 to adapt to the shape of the user's ear canal 80, so that the axis line N3 of the sealing portion 20 is as parallel as possible to the axis line N2 of the ear canal 80, so that the supporting force at each location of the fitting portion between the sealing portion 20 and the ear canal 80 is basically uniform, thereby preventing the sealing failure at the fitting portion between the sealing portion 20 and the ear canal 80 due to an imbalance of force.

[0030] It should also be noted that after the earphones are worn, the static friction between the ear cap and the inner wall of the ear canal 80 is usually used to ensure that the wearing state remains unchanged and prevent the ear cap from moving. However, when the earphones move relative to the ear canal 80 or the user exercises, the earphones usually have speed inertia. When the force generated by the inertia is greater than the static friction between the ear cap and the inner wall of the ear canal 80, the earphones will become loose when worn, resulting in air leakage, which will reduce the noise reduction and sound quality effects of the earphones. In the present application, when the earphone body 70 moves or exercises, since the earphone body 70 can move with the mounting part 30 compared to the sealing part 20, the speed inertia of the earphone body 70 has less effect on the sealing part 20, so that the inertial force acting on the sealing part 20 is smaller, thereby reducing the possibility that the inertial force of the sealing part 20 is greater than the friction between the sealing part 20 and the inner wall of the ear canal 80, thereby reducing the risk of the earphones becoming loose when worn.

[0031] In some embodiments of the present application, the overall shape of the sealing portion 20 can be roughly bowl-shaped, and the width of one end of the sealing portion 20 away from the connecting portion 40 is smaller than the width of the second end of the sealing portion 20, so that the ear cap is easier to insert into the ear canal 80.

[0032] Continue to see Figure 3 and Figure 4 As shown, in some embodiments of the present application, the connecting portion 40 is an elastic connecting portion 40. It can be understood that the connecting portion 40 is elastic, and the connecting portion 40 can be made of elastic materials such as silicone, sponge or elastic plastic. After the ear cap is inserted into the ear canal 80, the sealing portion 20 will be squeezed by the inner wall of the ear canal 80. At this time, the sealing portion 20 can expand outward under the elastic force of the connecting portion 40, so that the sealing portion 20 and the inner wall of the ear canal 80 are more closely fitted, so that the sealing property of the fitting part of the sealing portion 20 and the ear canal 80 is better, and the contact area between the sealing portion 20 and the inner wall of the ear canal 80 can be increased, so that the static friction and dynamic friction between the sealing portion 20 and the inner wall of the ear canal 80 can be increased, so that the earphone is not easy to move and fall after being inserted into the ear canal 80, and the risk of loosening when the earphone is worn can be reduced; in addition, after the earphone is taken out of the ear canal 80, the connecting portion 40 returns to its original state under the action of the elastic force, which can drive the sealing portion 20 to automatically return to its original state, so as to prevent the sealing portion 20 from being compressed and unable to be used normally.

[0033] Continue to see Figure 3 and Figure 8 As shown, in some embodiments of the present application, the connecting portion 40 is arranged around the circumference of the mounting portion 30 , the inner periphery of the connecting portion 40 is sealedly connected to the mounting portion 30 , and the outer periphery of the connecting portion 40 is sealedly connected to the sealing portion 20 .

[0034] It can be understood that the connecting portion 40 is an annular structure surrounding the mounting portion 30, and the inner periphery of the connecting portion 40 is sealedly connected to the mounting portion 30, which can ensure the sealing of the connection between the connecting portion 40 and the mounting portion 30. At the same time, the outer periphery of the connecting portion 40 is sealedly connected to the sealing portion 20, which can ensure the sealing of the connection between the connecting portion 40 and the sealing portion 20, thereby sealing the second end of the sealing portion 20. When the ear cap is inserted into the ear canal 80, the deformation cavity 21 in the sealing portion 20 is sealed in the ear canal 80, and the deformation cavity 21 is connected to the ear canal 80 through the first opening 22, which is equivalent to increasing the front cavity space of the speaker of the earphone. For in-ear earphones, the sound quality and sense of space of the earphones can be improved, which is beneficial to the active noise reduction design of the earphones. It should also be noted that when the connecting portion 40 is an elastic connecting portion 40 and the connecting portion 40 is an annular structure surrounding the mounting portion 30, the connecting portion 40 can provide elastic force for the sealing portion 20 on the circumferential side, so that when the earphones are worn, the entire circle of the sealing portion 20 is in close contact with the ear canal 80, so as to further improve the sealing performance of the fitting portion between the sealing portion 20 and the ear canal 80.

[0035] Furthermore, the periphery of the connecting portion 40 is connected to the second end of the sealing portion 20 to further increase the volume of the cavity sealed in the ear canal 80 in the deformation cavity 21 when the ear cap is inserted into the ear canal 80, thereby further increasing the equivalent front cavity space of the speaker of the earphone; in addition, when the ear cap is inserted into the ear canal 80, the fitting portion between the ear cap and the ear canal 80 is generally mainly the portion of the sealing portion 20 close to the second end, and the connecting portion 40 is connected to the end of the second end, so that the elastic force provided by the connecting portion 40 to the sealing portion 20 can be mainly concentrated on the fitting portion between the ear cap and the ear canal 80, thereby making the connecting portion 40 and the sealing portion 20 fit more closely.

[0036] like Figure 3 As shown, in one embodiment of the present application, the cross-sectional shape of the connecting portion 40 may be a long strip, so that the connecting portion 40 may have stronger elasticity, thereby providing a stronger elastic force for the sealing portion 20 .

[0037] like Figure 5 As shown, in another embodiment of the present application, the cross-sectional shape of the connecting portion 40 may be wavy. When the sealing portion 20 expands outward, the sealing portion 20 will pull the connecting portion 40. The wavy structure has a good buffering effect, which can prevent the connecting portion 40 from being subjected to excessive tension and causing the connecting portion 40 to be broken.

[0038] like Figure 6 As shown, in another embodiment of the present application, the cross-sectional shape of the connecting portion 40 may be a "V" shape. Figure 7 As shown, in another embodiment of the present application, the cross-sectional shape of the connecting portion 40 may also be a “︿” shape.

[0039] Continue to see Figure 7 As shown, in some embodiments of the present application, a mounting channel 31 is provided on the mounting portion 30, and the mounting channel 31 extends along the extension direction of the axis N3 of the sealing portion 20 to penetrate through both ends of the mounting portion 30, and the mounting channel 31 is used for allowing the sound outlet tube 71 to extend into the deformation cavity 21. It can be understood that when the ear cap is mounted on the earphone body 70, the sound outlet tube 71 is passed through the mounting channel 31 of the mounting portion 30 to achieve the connection between the mounting portion 30 and the sound outlet tube 71, and the ear cap can be mounted on the earphone body 70.

[0040] The hardness of the material of the mounting portion 30 may be greater than the hardness of the material of the sealing portion 20. It should be noted that when the sound outlet tube 71 with the ear cap installed is inserted into the ear canal 80, the sealing portion 20 contacts the ear canal 80. The material of the sealing portion 20 is relatively soft, which can reduce the discomfort of the ear canal 80, prevent the sealing portion 20 from causing damage to the ear canal 80, and improve the comfort of the ear. At the same time, the hardness of the mounting portion 30 is relatively large, which can improve the connection strength between the mounting portion 30 and the sound outlet tube 71, so that the ear cap is not easy to fall into the ear canal 80 when the sound outlet tube 71 is inserted into the ear canal 80; wherein, the materials of the mounting portion 30 and the sealing portion 20 can both be silicone, the hardness of the material of the mounting portion 30 is greater than or equal to 60A, and the hardness of the material of the sealing portion 20 is 20A to 30A.

[0041] In some embodiments of the present application, a card slot 32 is provided on the inner side wall of the installation channel 31, and a card block 73 is provided on the outer periphery of the sound outlet tube 71. When the ear cap is installed on the earphone body 70, the card block 73 is used to engage with the card slot 32, so as to limit the installation part 30 by utilizing the cooperation between the card slot 32 and the card block 73, so as to prevent the installation part 30 from sliding relative to the sound outlet tube 71 along the length direction of the axis N3 of the sealing part 20.

[0042] like Figure 6 As shown, in one embodiment of the present application, the deformation cavity 21 is a hollow cavity, that is, the cavity of the deformation cavity 21 is a hollow cavity. When the ear cap is inserted into the ear canal 80, the deformation cavity 21 is connected to the ear canal 80 through the first opening 22, which is equivalent to increasing the front cavity space of the speaker of the earphone.

[0043] like Figure 7 As shown, in another embodiment of the present application, a sound absorbing body 50 is provided in the deformation cavity 21, and the sound absorbing body 50 is located on a side of the connecting portion 40 close to the first opening 22. It should be noted that the sound absorbing body 50 is a porous structure formed by a sound absorbing material, and the sound absorbing body 50 can be made of a sound absorbing material such as bass powder, sponge, and activated carbon. The sound absorbing body 50 has the functions of expanding the equivalent front cavity space of the speaker of the earphone and isolating noise, etc., which can improve the sound quality and sound effect of the earphone.

[0044] Continue to see Figure 7As shown, in one embodiment of the present application, the connection point between the connection part 40 and the mounting part 30 is the first connection point 61, the connection point between the connection part 40 and the sealing part 20 is the second connection point 62, the connection line connecting the first connection point 61 and the second connection point 62 is the first connection line 63, and the angle formed by the first connection line 63 and the axis N3 of the sealing part 20 is α1, 15 degrees ≤ α1 ≤ 165 degrees. It can be understood that the closer α1 is to 90 degrees, the closer the force of the connection part 40 on the sealing part 20 is to be perpendicular to the inner wall of the sealing part 20, and when the ear cap is inserted into the ear canal 80, the force of the connection part 40 on the sealing part 20 can be closer to being perpendicular to the side wall of the ear canal 80, so that the sealing part 20 and the side wall of the ear canal 80 fit more closely. Among them, α1 can be 15 degrees, 45 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees, 165 degrees or other values.

[0045] Continue to see Figure 7 As shown, in one embodiment of the present application, the angle formed by the end surface of the sealing part 20 at one end away from the connecting part 40 and the axis N3 of the sealing part 20 is α2, and 15 degrees ≤ α2 ≤ 165 degrees. It can be understood that if α2 is too large, the angle of the sealing part 20 to expand outward relative to the axis N3 of the sealing part 20 will be too large, so that when the ear cap is inserted into the ear canal 80, the pressure of the sealing part 20 on the ear canal 80 will be too large, causing discomfort; if α1 is too large, the angle of the sealing part 20 to contract inward relative to the axis N3 of the sealing part 20 will be too large, which will cause the diameter of the first opening 22 to be too small, thereby affecting the sound quality of the earphone. Among them, α2 can be 15 degrees, 45 degrees, 60 degrees, 90 degrees, 120 degrees, 150 degrees, 165 degrees or other values.

[0046] like Figure 8 As shown, in one embodiment of the present application, the orthographic projection of the sealing portion 20 on a plane perpendicular to the axis N3 of the sealing portion 20 is a circle. It can be understood that the shape of the circular sealing portion 20 is more regular, and when the ear cap is inserted into the ear canal 80, the entire circle of the sealing portion 20 is subjected to more uniform force.

[0047] like Fig. 9 As shown, in another embodiment of the present application, the orthographic projection of the sealing portion 20 on a plane perpendicular to the axis N3 of the sealing portion 20 may also be an ellipse. It can be understood that the shape of the outer contour of the ear is usually close to an ellipse. By setting the sealing portion 20 to an ellipse, it can better match the shape of the ear and achieve a better sealing effect.

[0048] In a second aspect, based on the above-mentioned ear cap, the present application also provides a headset, such as Fig.10As shown, the earphone includes an earphone body 70 and an ear cap as in any of the above embodiments. The earphone body 70 has a sound outlet tube 71 , a sound outlet hole is provided at the end of the sound outlet tube 71 , and the sound outlet tube 71 extends into the deformation cavity 21 .

[0049] In one embodiment of the present application, a sound pickup hole 72 is provided on the side of the sound outlet tube 71, and the sound pickup hole 72 is connected to the deformation cavity 21. It can be understood that the sound pickup hole 72 is the sound receiving hole of the auxiliary microphone in the earphone for noise reduction. In this embodiment, the sound pickup hole 72 is not blocked by the mounting portion 30, but is exposed in the deformation cavity 21 and connected to the deformation cavity 21. The sound pickup hole 72 can obtain the sound in the deformation cavity 21, because when the ear cap is inserted into the ear canal 80, the deformation cavity 21 is sealed in the ear canal 80, and the deformation cavity 21 is connected to the ear canal 80 through the first opening 22, so that the sound in the deformation cavity 21 is closer to the sound at the eardrum, so that the sound obtained by the sound pickup hole 72 is closer to the sound at the eardrum, so that the noise reduction of the auxiliary microphone is the noise reduction at the eardrum, which is the real elimination of the noise at the eardrum.

[0050] It should also be noted that the sound pickup hole 72 is arranged on the side of the sound outlet tube 71, which can reduce the influence of the inner cavity structure and the steel mesh structure at the sound outlet hole at the end of the sound outlet tube 71, so that the sound obtained by the sound pickup hole 72 is closer to the sound at the eardrum. The sound pickup hole 72 can be arranged at the end edge of the sound outlet tube 71, and of course, the sound pickup hole 72 can also be arranged at other positions of the sound outlet tube 71.

[0051] Continue to see Fig.10 As shown, in one embodiment of the present application, the distance between the inner edge of the end of the sealing portion 20 away from the connecting portion 40 and the sound outlet tube 71 along the first direction A is d1, -7 mm ≤ d1 ≤ 10 mm, the first direction A is perpendicular to the extension direction of the axis N3 of the sealing portion 20, and the first direction A is the direction close to the sound outlet tube 71. It can be understood that when d1 is a positive number, the inner edge of the end of the sealing portion 20 away from the connecting portion 40 and the projection of the sound outlet tube 71 on the plane perpendicular to the sealing portion 20 do not coincide, and when d1 is a negative number, the inner edge of the end of the sealing portion 20 away from the connecting portion 40 and the projection of the sound outlet tube 71 on the plane perpendicular to the sealing portion 20 coincide. If d1 is too large, the sealing portion 20 will expand outward to a greater extent, which may easily cause the sealing portion 20 to exert too much pressure on the ear canal 80 when the ear cap is inserted into the ear canal 80; if d1 is too small, the diameter of the first opening 22 will be too small, affecting the sound quality of the earphone. Among them, d1 can be -7 mm, -5 mm, 0 mm, 2 mm, 5 mm, 10 mm or other values.

[0052] Continue to see Fig.10As shown, in one embodiment of the present application, the distance between the end surface of the sealing portion 20 away from the connecting portion 40 and the end surface of the sound outlet tube 71 along the second direction B is d2, -15 mm < d2 ≤ 15 mm, the second direction B is parallel to the extension direction of the axis N3 of the sealing portion 20, and the second direction B is the direction close to the sound outlet tube 71. It can be understood that when d2 is a positive number, the end of the sound outlet tube 71 is located in the deformation cavity 21 (i.e. Fig.10 As shown in the figure, when d2 is a negative number, the end of the sound outlet tube 71 extends out of the deformation cavity 21 through the first opening 22. If d2 is too large, the distance between the sound outlet tube 71 and the first opening 22 will be too large, affecting the sound quality effect; if d2 is too small, the length of the sound outlet tube 71 extending out of the deformation cavity 21 will be too long, which may cause the sound outlet tube 71 to directly contact the ear canal 80. Among them, d2 can be -15 mm, -5 mm, 0 mm, 2 mm, 5 mm, 10 mm, 15 mm or other values.

[0053] Continue to see Fig.10 As shown, in one embodiment of the present application, the distance between the mounting portion 30 and the end surface of the sound outlet tube 71 along the second direction B is d3, -10 mm < d3 ≤ 30 mm, and the second direction B is parallel to the extension direction of the axis N3 of the sealing portion 20. It can be understood that when d3 is a positive number, the end of the sound outlet tube 71 is located in the mounting portion 30, and when d3 is a negative number, the end of the sound outlet tube 71 extends out of the mounting portion 30. If d3 is too large, the connection portion 40 between the mounting portion 30 and the sound outlet tube 71 will be shorter, causing the ear cap to easily detach from the earphone body 70; if d3 is too small, the length of the sound outlet tube 71 extending from the mounting portion 30 will be too long, which will easily cause the sound outlet tube 71 to directly contact the ear canal 80. Among them, d3 can be -10 mm, -5 mm, 0 mm, 2 mm, 10 mm, 20 mm, 30 mm or other values.

[0054] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An ear cap, characterized in that: Applied to earphones, the earphones include an earphone body, the earphone body has a sound outlet tube; the ear cap includes: A mounting portion, the mounting portion being used to mount the sound outlet pipe; A sealing portion, the sealing portion being arranged around a circumference of the mounting portion; a deformable connecting portion, located between the mounting portion and the sealing portion, and connecting the mounting portion and the sealing portion; The mounting portion, the sealing portion and the connecting portion jointly define a deformation cavity, and an end of the sealing portion away from the connecting portion is provided with a first opening communicating with the deformation cavity.

2. The ear cap according to claim 1, characterized in that: The connecting portion is an elastic connecting portion.

3. The ear cap according to claim 1, characterized in that: The connecting portion is arranged around the circumference of the mounting portion, the inner circumference of the connecting portion is sealed and connected to the mounting portion, and the outer circumference of the connecting portion is sealed and connected to the sealing portion.

4. The ear cap according to claim 3, characterized in that: The outer periphery of the connecting portion is connected to the second end of the sealing portion.

5. The ear cap according to claim 1, characterized in that: The cross-sectional shape of the connecting portion is strip-shaped, wavy, "V"-shaped or "︿"-shaped.

6. The ear cap according to claim 1, characterized in that: The orthographic projection of the sealing portion on a plane perpendicular to the axial center line of the sealing portion is circular or elliptical.

7. The ear cap according to claim 1, characterized in that: A sound absorbing body is arranged in the deformation cavity, and the sound absorbing body is located on a side of the connecting portion close to the first opening.

8. The ear cap according to claim 1, characterized in that: The connection point between the connection part and the mounting part is the first connection point, the connection point between the connection part and the sealing part is the second connection point, the connecting line connecting the first connection point and the second connection point is the first connection line, and the angle formed by the first connection line and the axial line of the sealing part is α1, 15 degrees ≤ α1 ≤ 165 degrees.

9. The ear cap according to claim 1, characterized in that: An angle formed by an end surface of the sealing portion at one end away from the connecting portion and the axial center line of the sealing portion is α2, and 15 degrees ≤ α2 ≤ 165 degrees.

10. An earphone, characterized in that: It comprises an earphone body and an ear cap as claimed in any one of claims 1 to 9, wherein the earphone body has a sound outlet tube, a sound outlet hole is arranged at the end of the sound outlet tube, and the sound outlet tube extends into the deformation cavity.

11. The earphone according to claim 10, characterized in that A sound pickup hole is arranged on the side of the sound outlet tube, and the sound pickup hole is communicated with the deformation cavity.

12. The earphone according to claim 10, characterized in that The distance between the inner edge of one end of the sealing part away from the connecting part and the sound outlet pipe along the first direction is d1, -7 mm ≤ d1 ≤ 10 mm, the first direction is perpendicular to the extension direction of the axis of the sealing part, and the first direction is the direction close to the sound outlet pipe.

13. The earphone according to claim 10, characterized in that The distance between the end face of the sealing part away from the connecting part and the end face of the sound outlet pipe along the second direction is d2, -15 mm<d2≤15 mm, the second direction is parallel to the extension direction of the axial centerline of the sealing part, and the second direction is the direction close to the sound outlet pipe.

14. The earphone according to claim 10, characterized in that The distance between the mounting portion and the end surface of the sound outlet pipe along the second direction is d3, -10 mm < d3 ≤ 30 mm, the second direction is parallel to the extension direction of the axis of the sealing portion, and the second direction is the direction close to the sound outlet pipe.

Images