WO2023051008A1

WO2023051008A1 - Earphone cap and earphone

Info

Publication number: WO2023051008A1
Application number: PCT/CN2022/109043
Authority: WO
Inventors: 邓圆保; 马强
Original assignee: 安克创新科技股份有限公司
Priority date: 2021-09-30
Filing date: 2022-07-29
Publication date: 2023-04-06
Also published as: CN216414549U

Abstract

Disclosed are an earphone cap and an earphone. The earphone cap comprises a sleeve tube and a cap body, wherein the sleeve tube has a central axis and is configured to be connected to a sound guide tube; the sleeve tube comprises a first tube body and a second tube body, the second tube body being elastic, and in a direction perpendicular to the central axis, the thickness of a wall of the second tube body being less than the thickness of a wall of the first tube body; the cap body is connected to one end of the second tube body away from the first tube body, and the cap body at least surrounds an outer side of the second tube body; a cross-section of the second tube body passing through a plane where the central axis is located has an inner edge line close to the central axis, the inner edge line having a first end point and a second end point, and a first connecting line between the first end point and the second end point being inclined with respect to the central axis; and/or a cross-section of the second tube body passing through the plane where the central axis is located has an outer edge line away from the central axis, the outer edge line having a third end point and a fourth end point, and a second connecting line between the third end point and the fourth end point being inclined with respect to the central axis.

Description

A kind of ear cap and earphone

This application claims the priority of the Chinese patent application with the application number 202122403818.6 and the title of the invention "an ear cap and earphone" submitted to the China Patent Office on September 30, 2021, the entire contents of which are incorporated in this application by reference.

technical field

The present application relates to the technical field of earphones, in particular to an ear cap and an earphone.

Background technique

The existing earphones on the market are mainly divided into two types, one type is an in-ear earphone, and the other type is an outer earphone. Among them, the sound guide tube of the in-ear earphone is generally covered with an ear cap. Since the shape, size and size of the ear canal structure of different users are different, the ear cap of the same in-ear earphone can be inserted into the ear canal of different users. After the structure, it will produce a different wearing experience. However, the reduction of the user's wearing comfort will directly affect the noise reduction performance of the headset, and the current headsets on the market cannot meet the user's pursuit of high performance in the noise reduction aspect of the headset.

Utility model content

The embodiment of the present application provides an ear cap and earphones, which can adjust the angle of the ear cap relative to the sound guide tube according to the ear canal structure of different users, so as to effectively improve the wearing comfort of the user, and ensure that the ear cap and the ear cap are compatible with each other in terms of earphone noise reduction. Good sealing of the structure of the user's ear canal.

The first aspect of the embodiment of the present application provides an ear cap, the ear cap is set to be connected to the sound guide tube of the earphone body; the ear cap includes a sleeve and a cap body, the sleeve has a central axis and is connected to the sound guide, and the sleeve It includes a first tube body connected to the sound guide tube, a second tube body connected to the end of the first tube body away from the sound guide tube, the second tube body has elasticity, and along the direction perpendicular to the central axis, the second tube wall The wall thickness is smaller than the wall thickness of the first pipe body, the cap body is connected to the end of the second pipe body away from the first pipe body, and at least surrounds the outer side of the second pipe body, wherein the second pipe body passes through the plane where the central axis is located The cross-section has an inner edge line close to the central axis, the inner edge line has a first end point and a second end point, the first connecting line between the first end point and the second end point is inclined compared with the central axis, and/or the second end point The section of the second pipe body passing the plane where the central axis is located has an outer edge line away from the central axis, the outer edge line has a third end point and a fourth end point, and the second connecting line between the third end point and the fourth end point is compared with the central axis tilt.

The second aspect of the embodiment of the present application provides an earphone. The earphone includes an earphone main body and the above-mentioned ear cap. The earphone main body includes a sound guide tube. The ear cap includes a sleeve tube and a cap body. The sleeve tube has a central axis and is connected to the sound guide tube. , the socket tube includes a first tube body connected to the sound guide tube, a second tube body connected to the end of the first tube body away from the sound guide tube, the second tube body has elasticity, along the direction perpendicular to the central axis, the second tube body is The wall thickness of the pipe wall is smaller than the wall thickness of the first pipe body, and the cap body is connected to the end of the second pipe body away from the first pipe body, and at least surrounds the outer side of the second pipe body, wherein the second pipe body is over the middle The section of the plane where the axis is located has an inner edge line close to the central axis, the inner edge line has a first end point and a second end point, the first connecting line between the first end point and the second end point is inclined compared with the central axis, and /or the section of the second pipe body passing the plane where the central axis is located has an outer edge line far away from the central axis, the outer edge line has a third end point and a fourth end point, and the second connection line between the third end point and the fourth end point is compared inclined to the central axis.

In the embodiment of the present application, by designing the second pipe body to be elastic, and further designing the wall thickness of the second pipe body to be smaller than the wall thickness of the first pipe body, and the second pipe body is inclined relative to the central axis of the socket pipe , so that the cap body squeezes the second tube body under the action of external force, and the second tube body is more likely to produce elastic deformation along the central axis to change the amount of expansion and contraction of the ear cap, so that the ear can be adjusted according to the structure of the ear canal of different users. The length of the cap is designed to effectively improve the user's wearing comfort and ensure a good seal between the ear cap and the user's ear canal structure in terms of noise reduction.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic structural view of an ear cap in an embodiment of the present application;

Fig. 2 is a cross-sectional view of an ear cap in an embodiment of the present application;

Fig. 3 is a schematic structural diagram of an ear cap in another embodiment of the present application;

Fig. 4 is a sectional view of an ear cap in another embodiment of the present application;

Fig. 5 is a cross-sectional view of a socket pipe in an embodiment of the present application;

Fig. 6 is a cross-sectional view of a socket in another embodiment of the present application;

Fig. 7 is a schematic structural diagram of an inner edge line or an outer edge line in an embodiment of the present application;

Fig. 8 is a schematic structural diagram of an inner edge line or an outer edge line in another embodiment of the present application;

Fig. 9 is a schematic structural diagram of an inner edge line or an outer edge line in another embodiment of the present application;

Fig. 10 is a schematic structural diagram of an inner edge line or an outer edge line in another embodiment of the present application;

Fig. 11 is a schematic diagram of an exploded structure of an ear cap in an embodiment of the present application;

Fig. 12 is a schematic diagram of an exploded structure of an ear cap in another embodiment of the present application;

Fig. 13 is a schematic structural diagram of a socket in an embodiment of the present application;

Fig. 14 is a schematic structural diagram of a clamping member in another embodiment of the present application.

Reference signs: 10, ear cap; 11, socket pipe; 110, central axis; 111, first pipe body; 1111, groove; 112, second pipe body; 1121, inner edge line; 1121a, first end point 1121b, the second end point; 1121c, the first connecting line; 11211, the first sub-edge line; 11211a, the first line segment; 11211b, the second line segment; 1122, the outer edge line; 1122a, the third end point; Four terminal points; 1122c, second connecting line; 11221, second sub-edge line; 11221a, third line segment; 11221b, fourth line segment; 12, cap body; The first part; 1312, the second part; 132, the locking part; 1321, the locking block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The existing earphones on the market are mainly divided into two types, one type is an in-ear earphone, and the other type is an outer earphone. Among them, the sound guide tube of the in-ear earphone is generally covered with an ear cap. Since the shape, size and size of the ear canal structure of different users are different, the ear cap of the same in-ear earphone can be inserted into the ear canal of different users. After the structure, it will produce a different wearing experience.

For example, in a related technology, the ear cap includes a sleeve and a cap body, the sleeve is connected to the sound guide tube of the earphone body, the sleeve has a sound inlet close to the sound guide and a sound outlet away from the sound guide, The cap body is formed by extending backward from one end of the sound outlet of the socket pipe. Along the axial direction of the socket pipe, the distance between the inner pipe wall surface of the socket pipe and the central axis of the socket pipe is equal everywhere, and the distance between the outer pipe wall surface of the socket pipe and the central axis of the socket pipe is equal everywhere, that is, along the socket pipe In the axial direction, the wall thickness of the socket pipe is equal everywhere. Therefore, when the user wears the ear cap, the cap body squeezes the socket tube under the action of external force. Since the wall thickness of the socket tube is equal everywhere, the socket tube is not easy to produce elastic deformation along the central axis to change the ear cap relative to the earphone body. The angle of the sound guide tube affects the user's wearing experience.

However, the reduction of the user's wearing comfort will directly affect the noise reduction performance of the headset, and the current headsets on the market cannot meet the user's pursuit of high performance in the noise reduction aspect of the headset. Therefore, how to effectively improve the applicability of the earmuffs to improve the user's wearing comfort and meet the user's pursuit of high performance in terms of earphone noise reduction has become an urgent problem to be solved.

In order to solve the above technical problems, please refer to Figure 1-Figure 14, the first aspect of the present application proposes an ear cap 10, which can adjust the sound guide tube of the ear cap 10 relative to the earphone body according to the structure of the ear canal of different users In order to effectively improve the wearing comfort of the user, to ensure a good seal between the ear cap 10 and the user's ear canal structure in terms of earphone noise reduction.

The ear cap 10 is set to be connected to the sound guide tube of the earphone main body (not shown in the figure). The ear cap 10 includes a sleeve 11 and a cap body 12. The sleeve 11 has a central axis 110 and is connected to the sound guide. The sleeve 11 It includes a first tube body 111 connected to the sound guide tube, a second tube body 112 connected to the end of the first tube body 111 away from the sound guide tube, the second tube body 112 has elasticity, and along the direction perpendicular to the central axis 110, The wall thickness of the second pipe wall is smaller than the wall thickness of the first pipe body 111, the cap body 12 is connected to the end of the second pipe body 112 away from the first pipe body 111, and is at least surrounded by the outside of the second pipe body 112, wherein , the section of the second pipe body 112 passing the plane where the central axis 110 is located has an inner edge line 1121 close to the central axis 110, the inner edge line 1121 has a first end point 1121a and a second end point 1121b, and the first end point 1121a and the second end point The first connecting line 1121c between 1121b is inclined compared with the central axis 110, and/or the section of the second pipe body 112 passing through the plane where the central axis 110 is located has an outer edge line 1122 away from the central axis 110, and the outer edge line 1122 has a second The third end point 1122 a and the fourth end point 1122 b , and the second connecting line 1122 c between the third end point 1122 a and the fourth end point 1122 b are inclined compared with the central axis 110 .

Based on the ear cap 10 of the embodiment of the present application, the second tube body 112 is designed to be elastic, and the wall thickness of the second tube body 112 is further designed to be smaller than the wall thickness of the first tube body 111, and the second tube body 112 is relatively The central axis 110 of the socket pipe 11 is inclined, so that the cap body 12 squeezes the second pipe body 112 under the action of an external force, and the second pipe body 112 is more likely to produce elastic deformation along the central axis 110 to change the expansion and contraction of the ear cap 10 Therefore, the angle of the ear cap 10 relative to the sound guide tube of the earphone body can be adjusted according to the structure of the ear canal of different users, so as to effectively improve the wearing comfort of the user and ensure that the structure of the ear cap 10 and the user's ear canal in terms of earphone noise reduction good sealing.

The specific structure of the ear cap 10 will be introduced below with reference to FIGS. 1-14 .

The ear cap 10 is configured to be connected to the sound guide tube of the earphone body, wherein the connection between the ear cap 10 and the sound guide tube of the earphone body can be detachable or non-detachable. When the detachable connection between the ear cap 10 and the sound guide tube of the earphone main body, the detachable connection between the ear cap 10 and the sound guide tube of the earphone main body can be realized by snap-fit connection , when the connection between the ear cap 10 and the sound guide tube of the earphone body is non-detachable, the ear cap 10 and the sound guide tube of the earphone body can be glued and fixed to realize the non-detachable connection between the two. connect.

As shown in FIGS. 1-4 , the ear cap 10 includes a socket tube 11 and a cap body 12 .

The socket tube 11 is used as a part of the ear cap 10 to be connected to the sound guide tube of the earphone body. The socket tube 11 has a central axis 110 and is connected to the sound guide tube. Wherein, the socket pipe 11 is a hollow cylindrical structure, and the cross section of the socket pipe 11 can be circular or square. The central axis 110 of the socket pipe 11 is a straight line passing through the center of the cross section of the socket pipe 11 and perpendicular to the cross section of the socket pipe 11 . The connection between the sleeve tube 11 and the sound guide tube of the earphone body can be detachable or non-detachable. The specific connection between the sleeve tube 11 and the earphone body will be introduced below.

The socket tube 11 includes a first tube body 111 connected to the sound guide tube, and a second tube body 112 connected to an end of the first tube body 111 away from the sound guide tube. The second tube body 112 is connected with the first tube body 111 away from the end of the sound guide tube of the earphone main body. For example, the second tube body 112 and the first tube body 111 can be integrally formed by injection molding. A pipe body 111 can also be bonded and fixed by glue to form an integrated structure.

The second tube body 112 is elastic, it should be understood that the second tube body 112 can produce elastic deformation under the action of external force (the deformation can recover by itself after the external force is removed). It should be noted that the first tube body 111 can be elastic or rigid. When the first tube body 111 is elastic, the material of the first tube body 111 and the material of the second tube body 112 can be the same or different. For example, both the first tube body 111 and the second tube body 112 can be made of elastic rubber, and when the first tube body 111 is rigid, the first tube body 111 can be made of plastic.

Along the direction perpendicular to the central axis 110, the wall thickness of the second pipe body 112 is smaller than the wall thickness of the first pipe body 111, that is, along the direction perpendicular to the central axis 110, the inner annular surface of the second pipe body 112 and the second The distance between the outer annular surfaces of the pipe body 112 is less than the distance between the inner annular surface of the first pipe body 111 and the outer annular surface of the first pipe body 111, wherein the inner annular surface refers to the first pipe body 111 (or the second The surface of the second pipe body 112) near the central axis 110, and the outer annular surface refers to the surface of the first pipe body 111 (or the second pipe body 112) away from the central axis 110.

The cap body 12 is a part of the ear cap 10 configured to engage with the user's ear canal structure. The cap body 12 can be made of a hard material or a flexible material. When the cap body 12 is made of a hard material, the The hard material can be plastic, and when the cap body 12 is made of flexible material, the flexible material can be elastic rubber.

The cap body 12 is connected to the end of the second tube body 112 away from the first tube body 111. For example, the cap body 12 and the second tube body 112 can be integrally formed by injection molding, and the cap body 12 and the second tube body 112 can also be formed by using Glue bonding and fixing form a one-piece structure.

The cap body 12 at least surrounds the outer side of the second tube body 112 , for example, the cap body 12 may be an umbrella-shaped structure, and the cap body 12 extends backward from an end of the second tube body 112 away from the first tube body 111 .

As shown in FIGS. 5-6 , the section of the second pipe body 112 passing through the plane where the central axis 110 is located has an inner edge line 1121 close to the central axis 110, and the inner edge line 1121 has a first end point 1121a and a second end point 1121b. The first connecting line 1121c between the first end point 1121a and the second end point 1121b is inclined compared with the central axis 110 . Wherein, the first end point 1121a and the second end point 1121b are any two points on the inner edge line 1121. The end point 1121b corresponds to the end point of the inner edge line 1121 close to the first tube body 111, so the first connection line 1121c can be understood as the connection between the two ends of the inner edge line 1121; of course, the first The end point 1121a can also be a certain point on the inner edge line 1121 adjacent to the cap body 12, and the second end point 1121b can also be a certain point on the inner edge line 1121 adjacent to the first tube body 111, so the first Corresponding to the connection line 1121c, it can also be understood as a connection line between the two ends of the inner edge line 1121 and two points far away from each other. It can be understood that the first end point 1121a and the second end point 1121b are any two points on the inner edge line 1121, and the connection line between the first end point 1121a and the second end point 1121b (that is, the first connection line 1121c) It is inclined relative to the central axis 110 , that is to say, the inner edge line 1121 is inclined relative to the central axis 110 as a whole.

The section of the second pipe body 112 passing the plane where the central axis 110 is located has an outer edge line 1122 away from the central axis 110, the outer edge line 1122 has a third end point 1122a and a fourth end point 1122b, between the third end point 1122a and the fourth end point 1122b The second connecting line 1122c of is inclined compared with the central axis 110 . Wherein, the third end point 1122a and the fourth end point 1122b are any two points on the outer edge line 1122, for example, the third end point 1122a can be the end point of the outer edge line 1122 away from the first pipe body 111 side, and the fourth end point 1122b The corresponding one can be the end point of the outer edge line 1122 close to the first tube body 111 side, so the second connection line 1122c can be understood as the connection line between the two ends of the outer edge line 1122; of course, the third end point 1122a It can also be a certain point on the outer edge line 1122 adjacent to the cap body 12, and the fourth end point 1122b can also be a certain point on the outer edge line 1122 adjacent to the first tube body 111, so the second connecting line 1122c Correspondingly, it can also be understood as a connecting line between two ends of the outer edge line 1122 and two points far away from each other. It can be understood that the third end point 1122a and the fourth end point 1122b are any two points on the outer edge line 1122, and the connection line between the third end point 1122a and the fourth end point 1122b (that is, the second connection line 1122c) is compared It is inclined to the central axis 110 , that is to say, the outer edge line 1122 is inclined relative to the central axis 110 as a whole.

As shown in FIGS. 7-9 , considering that along the central axis 110 and from an end of the second pipe body 112 away from the first pipe body 111 to an end close to the first pipe body 111 , the inner edge line 1121 is compared with the central axis 110 It can be gradually inclined towards the direction away from the central axis 110, or gradually inclined towards the direction close to the central axis 110, and the inclination angles of the sub-lines on the inner edge line 1121 compared with the central axis 110 can be the same or different, for further The second tube body 112 can produce good stretchability under the action of external force, so it is further designed that the inner edge line 1121 includes at least one first sub-edge line 11211, and the first sub-edge line 11211 includes the first line segment 11211a and the connecting second line A second line segment 11211b at one end of one line segment 11211a. Regarding the inclination direction of the first line segment 11211a and the second line segment 11211b compared to the central axis 110, there may be, but not limited to, the following possible implementations.

As shown in Figure 7, in the first embodiment, along the direction perpendicular to the central axis 110, the distance between at least part of the first line segment 11211a and the central axis 110 gradually increases, and at least part of the second line segment 11211b The distance from the central axis 110 decreases gradually, that is, the inclination direction of the first line segment 11211a relative to the central axis 110 is opposite to the inclination direction of the second line segment 11211b relative to the central axis 110 . Wherein, "at least part of" should be understood as any sub-line segment included in the non-closed interval of the first line segment 11211a. For example, the first line segment 11211a may be a semicircle segment, the semicircle segment is located on the side of the first connecting line 1121c away from the central axis 110, and the semicircle segment includes a quarter of the distance away from the first pipe body 111. A circular arc line segment and a quarter arc line segment close to the first pipe body 111, wherein, along the direction perpendicular to the central axis 110, the quarter arc line segment away from the first pipe body 111 and the central axis 110 The distance between them gradually increases, and the distance between the quarter-arc line segment close to the first pipe body 111 and the central axis 110 gradually decreases. The second line segment 11211b can also be a semicircle segment, which is located on the side of the first connecting line 1121c close to the central axis 110, and the semicircle segment includes a quarter circle away from the first pipe body 111 The arc segment and the quarter arc segment close to the first pipe body 111, wherein, along the direction perpendicular to the central axis 110, between the quarter arc segment away from the first pipe body 111 and the central axis 110 The distance gradually decreases, and the distance between the quarter-arc line segment close to the first pipe body 111 and the central axis 110 gradually increases.

As shown in Figure 8, in the second embodiment, along the direction perpendicular to the central axis 110, the distance between at least part of the first line segment 11211a and the central axis 110 gradually increases, and at least part of the second line segment 11211b The distance from the central axis 110 gradually increases, that is, the inclination direction of the first line segment 11211 a relative to the central axis 110 is the same as the inclination direction of the second line segment 11211 b relative to the central axis 110 . For example, as shown in (a) in FIG. 8 , the first line segment 11211a may be a one-sixth arc line segment, and the one-sixth arc line segment is located on the side of the first connecting line 1121c away from the central axis 110, And along a direction perpendicular to the central axis 110 , the distance between the one-sixth arc segment and the central axis 110 gradually increases. The second line segment 11211b may be a sixth arc segment, which is located on the side of the first connecting line 1121c close to the central axis 110, and along a direction perpendicular to the central axis 110, the sixth segment The distance between one arc segment and the central axis 110 gradually increases.

As shown in Figure 9, in the third embodiment, along the direction perpendicular to the central axis 110, the distance between at least part of the first line segment 11211a and the central axis 110 gradually decreases, and at least part of the second line segment 11211b The distance from the central axis 110 gradually decreases, that is, the inclination direction of the first line segment 11211a relative to the central axis 110 is the same as the inclination direction of the second line segment 11211b relative to the central axis 110 . For example, as shown in (a) in FIG. 9 , the first line segment 11211a may be a one-sixth arc line segment, and the one-sixth arc line segment is located on the side of the first connecting line 1121c close to the central axis 110, And along a direction perpendicular to the central axis 110 , the distance between the one-sixth arc segment and the central axis 110 gradually decreases. The second line segment 11211b may be a sixth arc segment, which is located on the side of the first connecting line 1121c close to the central axis 110, and along a direction perpendicular to the central axis 110, the sixth segment The distance between one arc segment and the central axis 110 gradually decreases.

It should be noted that, based on the above several embodiments, the inclination angle of the first line segment 11211a relative to the central axis 110 and the inclination angle of the second line segment 11211b relative to the central axis 110 may be the same or different.

As shown in Figure 10, considering that the line type of the first line segment 11211a can be a straight line or a curve, similarly, the line type of the second line segment 11211b can be a straight line or a curve, for example, the curve can be a parabola. The processing of the second pipe body 112 is difficult, so it is further designed that the first line segment 11211a is one of a straight line segment or an arc line segment, and/or the second line segment 11211b is one of a straight line segment or an arc line segment.

Specifically, the line type combinations of the first line segment 11211a and the second line segment 11211b may be, but not limited to, the following possible implementations.

For example, as shown in (a) in FIG. 10 , in one embodiment, the first line segment 11211a is a straight line segment, and the second line segment 11211b is a straight line segment. It can be understood that, the inclination angle of the first line segment 11211a relative to the central axis 110 (ie, the first slope) and the inclination angle of the second line segment 11211b relative to the central axis 110 (ie, the second slope) may be the same or different. .

For example, as shown in (b) of FIG. 10 , in one embodiment, the first line segment 11211a is a straight line segment, and the second line segment 11211b is an arc line segment.

For example, in one embodiment, the first line segment 11211a is an arc segment, and the second line segment 11211b is a straight line segment.

For example, in one embodiment, the first line segment 11211a is an arc segment, and the second line segment 11211b is an arc segment. It can be understood that the arc radius of the first line segment 11211a and the arc radius of the second line segment 11211b may be the same or different.

As shown in FIGS. 7-9 , considering that along the central axis 110 and from an end of the second pipe body 112 away from the first pipe body 111 to an end close to the first pipe body 111 , the outer edge line 1122 is compared with the central axis 110 It can be gradually inclined towards the direction away from the central axis 110, or gradually inclined towards the direction close to the central axis 110, and the inclination angles of the sub-lines on the outer edge line 1122 compared with the central axis 110 can be the same or different. The second pipe body 112 can produce good stretchability under the action of external force, so it is further designed that the outer edge line 1122 includes at least one second sub-edge line 11221, and the second sub-edge line 11221 includes a third line segment 11221a and connects the third A fourth line segment 11221b at one end of line segment 11221a. Regarding the inclination directions of the third line segment 11221a and the fourth line segment 11221b compared to the central axis 110, there are several possible implementations, but not limited to, as follows.

As shown in FIG. 7, in the first embodiment, along the direction perpendicular to the central axis 110, the distance between at least part of the third line segment 11221a and the central axis 110 gradually increases, and at least part of the fourth line segment 11221b and the central axis 110 gradually increase. The distance between the central axes 110 decreases gradually, that is, the inclination direction of the third line segment 11221 a relative to the central axis 110 is opposite to the inclination direction of the fourth line segment 11221 b relative to the central axis 110 . Wherein, "at least part of" should be understood as any sub-segment included in the non-closed interval of the third line segment 11221a. For example, the third line segment 11221a may be a semicircle segment, which is located on the side of the second connecting line 1122c away from the central axis 110, and the semicircle segment includes a quarter of the distance away from the first pipe body 111. The arc line segment and the quarter arc line segment close to the first pipe body 111, wherein, along the direction perpendicular to the central axis 110, the distance between the quarter arc line segment away from the first pipe body 111 and the central axis 110 The distance between the first pipe body 111 and the central axis 110 decreases gradually. The fourth line segment 11221b can also be a semicircle segment, which is located on the side of the second connecting line 1122c close to the central axis 110, and the semicircle segment includes a quarter circle away from the first tube body 111 The arc segment and the quarter arc segment close to the first pipe body 111, wherein, along the direction perpendicular to the central axis 110, between the quarter arc segment away from the first pipe body 111 and the central axis 110 The distance gradually decreases, and the distance between the quarter-arc line segment close to the first pipe body 111 and the central axis 110 gradually increases.

As shown in FIG. 8, in the second embodiment, along the direction perpendicular to the central axis 110, the distance between at least part of the third line segment 11221a and the central axis 110 gradually increases, and at least part of the fourth line segment 11221b and the central axis 110 gradually increase. The distance between the central axes 110 gradually increases, that is, the inclination direction of the third line segment 11221 a relative to the central axis 110 is the same as the inclination direction of the fourth line segment 11221 b relative to the central axis 110 . For example, as shown in (a) in FIG. 8 , the third line segment 11221a may be a one-sixth arc line segment, and the one-sixth arc line segment is located on the side of the second connecting line 1122c away from the central axis 110, and Along a direction perpendicular to the central axis 110 , the distance between the one-sixth arc segment and the central axis 110 gradually increases. The fourth line segment 11221b may be a one-sixth arc line segment, the one-sixth arc line segment is located on the side of the second connecting line 1122c close to the central axis 110, and along the direction perpendicular to the central axis 110, the sixth line segment The distance between one arc segment and the central axis 110 gradually increases.

As shown in FIG. 9, in the third embodiment, along the direction perpendicular to the central axis 110, the distance between at least part of the third line segment 11221a and the central axis 110 gradually decreases, and at least part of the fourth line segment 11221b and the central axis 110 gradually decrease. The distance between the central axes 110 decreases gradually, that is, the inclination direction of the third line segment 11221 a relative to the central axis 110 is the same as the inclination direction of the fourth line segment 11221 b relative to the central axis 110 . For example, as shown in (a) in FIG. 9 , the third line segment 11221a may be a one-sixth arc line segment, and the one-sixth arc line segment is located on the side of the second connecting line 1122c close to the central axis 110, and Along a direction perpendicular to the central axis 110 , the distance between the one-sixth arc segment and the central axis 110 gradually decreases. The fourth line segment 11221b may be a one-sixth arc line segment, the one-sixth arc line segment is located on the side of the second connecting line 1122c close to the central axis 110, and along the direction perpendicular to the central axis 110, the sixth line segment The distance between one arc segment and the central axis 110 gradually decreases.

It should be noted that, based on the above several embodiments, the inclination angle of the third line segment 11221a relative to the central axis 110 and the inclination angle of the fourth line segment 11221b relative to the central axis 110 may be the same or different.

As shown in Figure 10, considering that the line type of the third line segment 11221a can be a straight line or a curve, similarly, the line type of the fourth line segment 11221b can be a straight line or a curve, for example, the curve can be a parabola. The processing of the second pipe body 112 is difficult, so it is further designed that the third line segment 11221a is one of a straight line segment or an arc line segment, and/or the fourth line segment 11221b is one of a straight line segment or an arc line segment.

Specifically, the line type combinations of the third line segment 11221a and the fourth line segment 11221b may be, but not limited to, the following possible implementations.

For example, as shown in (a) of FIG. 10 , in one embodiment, the third line segment 11221a is a straight line segment, and the fourth line segment 11221b is a straight line segment. It can be understood that the inclination angle of the third line segment 11221a relative to the central axis 110 (ie the third slope) and the inclination angle of the fourth line segment 11221b relative to the central axis 110 (ie the fourth slope) may be the same or different.

For example, as shown in (b) in FIG. 10 , in one embodiment, the third line segment 11221a is a straight line segment, and the fourth line segment 11221b is an arc line segment.

For example, in one embodiment, the third line segment 11221a is an arc segment, and the fourth line segment 11221b is a straight line segment.

For example, in one embodiment, the third line segment 11221a is an arc segment, and the fourth line segment 11221b is an arc segment. It can be understood that the arc radius of the third line segment 11221a and the arc radius of the fourth line segment 11221b may be the same or different.

As shown in Figures 5-6, considering that the wall thickness of the second tube body 112 also determines the flexibility of the second tube body 112 to a certain extent, for example, the smaller the wall thickness of the second tube body 112 , the better the stretchability of the second tube body 112 is. In order to further improve the flexibility of the second tube body 112 so that the ear cap 10 can better adapt to the ear canal structure of different users, it is further designed that along the direction perpendicular to the central axis 110, the wall thickness of the second tube body 112 is a , and a satisfies the conditional formula: 0.3 mm ≤ a ≤ 0.4 mm, wherein the wall thickness of the second tube body 112 should be understood as a cross-section perpendicular to the plane where the central axis 110 is located, the inner ring line of the second tube body 112 and the first The outer circular line of the two pipe bodies 112 is along a distance perpendicular to the central axis 110 . Specifically, the value of the wall thickness a of the second tube body 112 may be 0.3 mm, 0.35 mm or 0.4 mm, etc. In this design, when 0.3 mm ≤ a ≤ 0.4 mm, the second tube body 112 has good structural strength while having good stretchability, thereby reducing the second tube body 112 caused by the second tube body 112 after multiple external forces. The possibility of 112 rupture, when a≤0.3 mm, the second tube body 112 has good stretchability but the structural strength of the second tube body 112 is not good; when a≥0.4 mm, the second tube body 112 has good structural strength but The stretchability of the second tube body 112 is poor.

As shown in Figures 11-12, considering that the first tube body 111 is used as a part in the sleeve tube 11 to be connected to the sound guide tube of the earphone main body, the first tube body 111 can be made of a hard material (such as plastic), In order to reduce the processing difficulty of the sleeve pipe 11 as a whole, it is further designed that the first pipe body 111 has elasticity, and the ear cap 10 also includes a clamping part 13 partially embedded in the first tube body 111, and the clamping part 13 is set as Fit with the sound guide tube. Wherein, the first pipe body 111 can be molded integrally with the second pipe body 112 by injection molding. By designing the clamping piece 13, the clamping piece 13 is equivalent to a reinforcing rib embedded in the first pipe body 111. On the one hand, the The structural strength of the first tube body 111 is to effectively reduce the possibility of the first tube body 111 becoming loose with the sound guide tube of the earphone body due to deformation under the action of an external force. The sound guide tube of the main body is also made of hard material, so when the clamping part 13 is clamped with the sound guide tube of the earphone main body, it will make a sound, so that the user can judge whether the ear cap 10 and the earphone main body are installed in place according to the sound.

As shown in Figures 13-14, further, considering that there are many specific forms of the clamping piece 13 that is clamped and matched with the sound guide tube of the earphone body, for example, the clamping piece 13 may include a wedge block and a spring, the first A tube body 111 has a mounting groove on the inner annular surface, one end of the spring is fixedly connected to the wedge-shaped block, the other end of the spring is fixedly connected to the bottom wall of the mounting groove, and the sound guide tube of the earphone main body is provided with a groove for snap-fitting with the wedge-shaped block. During the installation process of the ear cap 10, the outer wall of the sound guide tube presses the guide surface of the wedge-shaped block, so that the wedge-shaped block presses the spring and moves toward the bottom of the installation groove until the first tube When the body 111 moves relative to the sound guide tube until the notch of the installation groove is aligned with the notch of the clamping groove, the wedge-shaped block moves away from the bottom of the mounting groove under the action of the spring to engage with the clamping groove, thereby realizing the ear cap 10 connection with the headphone body. In order to reduce the portability of disassembly and assembly between the first tube body 111 and the sound guide tube of the earphone main body, it is further designed that a groove 1111 is opened on the inner ring wall of the first tube body 111, and the sound guide tube includes a matching part, snap-fit The piece 13 includes a first main body portion 131 and an engaging portion 132, the first main body portion 131 is embedded in the groove 1111, and the engaging portion 132 is disposed on the side of the first main body portion 131 away from the groove bottom wall of the groove 1111, And it is set to snap fit with the matching portion.

Further, in order to reduce the difficulty of engagement between the engaging portion 132 and the matching portion, it is further designed that the sound guide tube also includes a second main body portion, the matching portion is arranged on the second main body portion, and the matching portion includes openings on the second main body portion. The locking slot on the main body, the engaging portion 132 includes a locking block 1321 disposed on the first main body 131 , and the locking block 1321 is engaged with the locking slot. Here, the specific structure of the locking block 1321 and the locking slot is not limited, as long as the locking block 1321 and the locking slot match in shape and size. In this design, the installation and disassembly of the first tube body 111 and the sound guide tube of the earphone main body are realized through the clamping fit of the clamping block 1321 and the clamping slot between the mating part and the engaging part 132, further reducing the ear cap. The difficulty of installation and disassembly between 10 and the earphone main body.

Specifically, the first body part 131 includes a first part 1311 and at least two second parts 1312, the first part 1311 is annular, and the second part 1312 is arranged at intervals along the circumference of the first part 1311, and is away from the first part 1311 from the second tube. One side of the body 112 is connected, and the locking block 1321 is disposed on the second part 1312 . Wherein, the first tube body 111 , the first part 1311 , the second part 1312 and the block 1321 can be integrally formed by injection molding. In this design, by designing the first part 1311 of the first main body 131 into a ring shape, on the one hand, the contact area between the first main body 131 and the first pipe body 111 is increased, thereby strengthening the connection between the clip 13 and the first pipe. The connection stability between the pipe bodies 111, on the other hand, the ring-shaped first part 1311 enhances the structural strength of the first pipe body 111 along the circumferential direction of the first pipe body 111, by designing at least two second parts arranged at intervals 1312, the second part 1312 further increases the contact area between the first body part 131 and the first tube body 111, thereby further enhancing the connection stability between the clamping member 13 and the first tube body 111. The block 1321 is designed on the second part 1312, the second main body presses the block 1321, and the block 1321 is pressed against the second part 1312 to be easily deformed, so that it is easier to realize the locking between the block 1321 and the slot catch.

Further, considering that the number and distribution of the clamping points between the clamping member 13 and the sound guide tube of the earphone body also affect the connection stability between the ear cap 10 and the earphone body, in order to further improve the connection between the ear cap 10 and the earphone. The connection stability between the main bodies is further designed, the number of the second part 1312 is two, and the two second parts 1312 are arranged symmetrically with respect to the central axis 110 . In this design, the two second parts 1312 are designed to be symmetrically arranged with respect to the central axis 110 of the socket tube 11, so that after the clamping part 13 and the sound guide tube are clamped, the force on the two is even, thereby further improving the ear cap 10. Connection stability with the headphone body.

In order to prevent impurities (such as earwax) from entering the sound guide tube of the earphone body through the end of the second tube body 112 close to the sound outlet, it is further designed that the ear cap 10 also includes a protruding structure, and the protruding structure is arranged on the second tube. The inner ring wall of the body 112 is located on the side of the second tube body 112 away from the first tube body 111 . Wherein, the protruding structure can be integrally formed with the second tube body 112, and the protruding structure includes a flange extending from the inner wall surface of the second tube body 112 toward the defense line of the central axis 110, and the flange can be formed around the second tube body 112. The annular flange disposed in the circumferential direction of the inner annular wall surface of the body 112 may also be a plurality of point-shaped flanges distributed at intervals along the circumferential direction of the inner annular wall surface of the second pipe body 112 . In this design, by setting a raised structure on the inner ring wall of the second tube body 112, the raised structure can effectively block impurities attached to the user's ear canal structure through the end of the second tube body 112 close to the sound outlet. It enters the sound guide tube of the main body of the earphone, thereby effectively prolonging the service life of the earphone.

The second aspect of the present application proposes an earphone, which includes an earphone main body and the above-mentioned ear cap 10 , the earphone main body includes a sound guide tube, and the ear cap 10 is connected to the sound guide tube. In this design, the earphone with the above-mentioned ear cap 10 can adjust the length of the ear cap 10 according to the structure of the ear canal of different users, so as to effectively improve the wearing comfort of the earphone.

The above disclosures are only preferred embodiments of the present application, which certainly cannot limit the scope of the present application. Therefore, equivalent changes made according to the claims of the present application still fall within the scope of the present application.

Claims

An ear cap, configured to be connected to a sound guide tube of an earphone body, wherein the ear cap includes:

A socket has a central axis and is connected to the sound guide tube, the socket tube includes a first tube body connected to the sound guide tube, and a first tube body connected to an end of the first tube body away from the sound guide tube a second pipe body, the second pipe body has elasticity, and along a direction perpendicular to the central axis, the wall thickness of the second pipe body is smaller than the wall thickness of the first pipe body; and

a cap, connected to an end of the second tube away from the first tube, and at least surrounding the outside of the second tube;

Wherein, the section of the second pipe body passing through the plane where the central axis is located has an inner edge line close to the central axis, the inner edge line has a first end point and a second end point, and the first end point and a first line between the second endpoints is inclined relative to the central axis; and/or

The section of the second pipe body passing through the plane where the central axis is located has an outer edge line far away from the central axis, the outer edge line has a third end point and a fourth end point, and the third end point is connected to the fourth end point. The second connecting line between the end points is inclined relative to the central axis.
The ear cap according to claim 1, wherein the inner edge line includes at least one first sub-edge line, and the first sub-edge line includes a first line segment and a second line segment connected to one end of the first line segment. line segment;

Along a direction perpendicular to the central axis, the distance between at least part of the first line segment and the central axis gradually increases, and the distance between at least part of the second line segment and the central axis gradually increases. decrease.
The ear cap according to claim 1, wherein the inner edge line includes at least one first sub-edge line, and the first sub-edge line includes a first line segment and a second line segment connected to one end of the first line segment. line segment;

Along a direction perpendicular to the central axis, the distance between at least part of the first line segment and the central axis gradually increases, and the distance between at least part of the second line segment and the central axis gradually increases. increase.
The ear cap according to claim 1, wherein the inner edge line includes at least one first sub-edge line, and the first sub-edge line includes a first line segment and a second line segment connected to one end of the first line segment. line segment;

Along a direction perpendicular to the central axis, the distance between at least part of the first line segment and the central axis gradually decreases, and the distance between at least part of the second line segment and the central axis gradually decreases. decrease.
The ear cap as claimed in claim 2 or 3 or 4, wherein,

The first line segment is one of a straight line segment or a circular arc line segment; and/or

The second line segment is one of a straight line segment or an arc line segment.
The ear cap according to claim 1, wherein the outer edge line includes at least one second sub-edge line, and the second sub-edge line includes a third line segment and a fourth line segment connected to one end of the third line segment ;

Along a direction perpendicular to the central axis, the distance between at least part of the third line segment and the central axis gradually increases, and the distance between at least part of the fourth line segment and the central axis gradually decreases Small.
The ear cap according to claim 1, wherein the outer edge line includes at least one second sub-edge line, and the second sub-edge line includes a third line segment and a fourth line segment connected to one end of the third line segment ;

Along a direction perpendicular to the central axis, the distance between at least part of the third line segment and the central axis gradually increases, and the distance between at least part of the fourth line segment and the central axis gradually increases big.
The ear cap according to claim 1, wherein the outer edge line includes at least one second sub-edge line, and the second sub-edge line includes a third line segment and a fourth line segment connected to one end of the third line segment ;

Along a direction perpendicular to the central axis, the distance between at least part of the third line segment and the central axis gradually decreases, and the distance between at least part of the fourth line segment and the central axis gradually decreases Small.
The ear cap as claimed in claim 6 or 7 or 8, wherein,

The third line segment is one of a straight line segment or an arc line segment; and/or

The fourth line segment is one of a straight line segment or an arc line segment.
The earmuff of claim 1, wherein:

The first tube body is elastic, and the ear cap further includes a clip part embedded in the first tube body, and the clip part is configured to snap fit with the sound guide tube.
The eargear of claim 10, wherein:

A groove is opened on the inner ring wall surface of the first pipe body, and the sound guiding pipe includes a matching part;

The clips include:

the first body part is embedded in the groove; and

The engaging portion is disposed on a side of the first main body away from the groove bottom wall of the groove, and is configured to engage with the matching portion.
The eargear of claim 11, wherein:

The sound guide tube also includes a second main body part, and the matching part is arranged on the second main body part;

The matching portion includes a card slot opened on the second main body;

The engaging portion includes a locking block disposed on the first main body, and the locking block is snap-engaged with the locking slot.
The earmuff of claim 1, wherein:

The ear cap further includes a protruding structure, the protruding structure is arranged on the inner ring wall surface of the second tube body and is located on a side of the second tube body away from the first tube body.
The earmuff of claim 1, wherein:

Along the direction perpendicular to the central axis, the wall thickness of the second pipe body is a, and a satisfies the conditional formula: 0.3mm≤a≤0.4mm.
A headset, comprising:

an earphone body, the earphone body comprising a sound guide tube; and

ear caps, said ear caps comprising:

A socket has a central axis and is connected to the sound guide tube, the socket tube includes a first tube body connected to the sound guide tube, and a first tube body connected to an end of the first tube body away from the sound guide tube a second pipe body, the second pipe body has elasticity, and along a direction perpendicular to the central axis, the wall thickness of the second pipe body is smaller than the wall thickness of the first pipe body;

a cap, connected to an end of the second tube away from the first tube, and at least surrounding the outside of the second tube;

Wherein, the section of the second pipe body passing through the plane where the central axis is located has an inner edge line close to the central axis, the inner edge line has a first end point and a second end point, and the first end point and a first line between the second endpoints is inclined relative to the central axis; and/or

The section of the second pipe body passing through the plane where the central axis is located has an outer edge line far away from the central axis, the outer edge line has a third end point and a fourth end point, and the third end point is connected to the fourth end point. The second connecting line between the end points is inclined relative to the central axis.