Earpiece and earphone

Abstract

The present application discloses an earpiece and an earphone. The earpiece is applicable to the earphone. The earphone has an earphone body. The earphone body has a sound emitting tube. The sound emitting tube has a sound passage. At the end of the sound emitting tube, a sound emitting hole communicating with the sound passage is provided. The earpiece includes a main body and a noise canceling part. The main body has a housing space and a sound emitting passage communicating with the housing space. The sound emitting passage communicates with the sound emitting hole of the sound emitting tube. At least a part of the noise canceling part is located in the housing space and is provided such that the outer diameter decreases along the sound emitting direction, and a noise canceling cavity is formed between the outer wall and the inner wall of the main body. The earpiece uses a double-sealing structure that combines the main body and the noise canceling part, and by significantly increasing the thickness of the earpiece, it has excellent noise canceling performance and can effectively prevent external noise from passing through the earpiece and entering the ear canal.

Description

Technical Field

[0001] Related Applications This application claims the priority of Chinese patent applications filed on July 15, 2022, with application numbers 202210840205.5, entitled "Earpiece and Earphone", filed on July 15, 2022, with application number 202221833290.4, entitled "Earpiece and Earphone", and filed on July 15, 2022, with application number 202221841303.2, entitled "Earphone", and all of their contents are incorporated herein by reference.

[0002] This application relates to the technical field of earphones, and particularly to earpieces and earphones.

Background Art

[0003] Earphones are mainly divided into two types: canal-type earphones and ear-hook type earphones. Generally, an earpiece is fitted to the earphone body of canal-type earphones. Canal-type earphones usually block noise in a sealed manner. When the earpiece of a canal-type earphone is inserted into the user's ear canal, a sealed cavity is formed between the earpiece and the ear canal.

[0004] However, since the earpiece is generally thin, external noise easily penetrates the earpiece and enters the human ear.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The earpiece and earphone according to this application can effectively prevent external noise from penetrating the earpiece and entering the ear canal.

Means for Solving the Problems

[0006] In a first aspect, the present application is applied to an earpiece for an earphone having an earphone body with a sound emitting tube, the sound emitting tube having a sound passage and a sound emitting hole communicating with the sound passage provided at an end of the sound emitting tube, the earpiece comprising: a main body having a housing space and a sound emitting passage communicating with the housing space, the sound emitting passage communicating with the sound emitting hole of the sound emitting tube; and a noise canceling portion at least partially located within the housing space, provided such that an outer diameter decreases along the sound emitting direction, and a noise canceling cavity is formed between an outer wall and an inner wall of the main body.

[0007] In a second aspect, the present application provides an earphone including an earphone body and an earpiece, the earphone body having a sound emitting tube having a sound passage, a sound emitting hole communicating with the sound passage provided at an end of the sound emitting tube, the sound emitting tube extending into the housing space, the sound emitting hole communicating with the sound emitting passage, and the noise canceling portion being provided surrounding an outer periphery of the sound emitting tube.

[0008] Based on the earpiece and earphone according to embodiments of the present application, the earpiece uses a double-sealing structure that combines a main body and a noise canceling portion, significantly increasing the thickness of the earpiece. Also, since the noise canceling cavity increases the distance between the main body and the noise canceling portion, the thickness of the earpiece is further increased. External noise needs to pass through the noise canceling portion, the noise canceling cavity, and the main body to enter the human ear. Also, when noise enters the relatively sealed noise canceling cavity, it is gradually absorbed, twisted, and attenuated by the resistance of the noise canceling cavity. Therefore, the earpiece has excellent noise canceling performance and can effectively prevent external noise from passing through the earpiece and entering the ear canal.

Brief Description of the Drawings

[0009] To more clearly explain the technical means in the embodiments of the present application or the prior art, the drawings necessary for the description of the embodiments or the prior art will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0011] To make the objectives, technical means, and advantages of the present application clearer, the present application will be described in more detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described in this specification are only for explaining the present application and do not limit the present application.

Embodiment

[0012] This embodiment provides an earpiece and earphone that solve the problem that since the earpiece is generally thin, external noise easily penetrates the earpiece and enters the human ear.

[0013] Specifically, as shown in FIGS. 1 and 2, the earpiece 20 is applied to an earphone. The earphone has an earphone body 10. The earphone body 10 has a sound emitting tube 11. The sound emitting tube 11 has a sound passage 111. At the end of the sound emitting tube 11, a sound emitting hole 112 communicating with the sound passage 111 is provided. The earpiece 20 includes a main body 21. Inside the main body 21, an accommodation space 211 and a sound emitting passage 212 communicating with the accommodation space 211 are formed. The sound emitting passage 212 communicates with the sound emitting hole 112 of the sound emitting tube 11. The overall shape of the main body 21 may be substantially bowl-shaped.

[0014] Note that the earphone may be a canal-type wired earphone or a wireless earphone. The earphone body 10 may be communicatively connected to a playback device such as a mobile phone, a notebook computer, a desktop computer, an MP3, or a wearable audio device. The sound emitting tube 11 is inserted into the user's ear canal. When the sound emitting tube 11 is inserted into the ear canal, the sound emitting hole 112 is located inside the ear canal, and the sound reproduced by the playback device may sequentially pass through the sound passage 111 and the sound emitting hole 112 and be transmitted to the ear canal. The specific operating principle of the earphone is known in the related art and will be omitted in this application. The earpiece 20 can avoid being directly contacted and damaged by the ear canal and the sound emitting tube 11, and can also provide high wearing comfort to humans. The sound emitting passage 212 of the main body 21 communicates with the sound emitting hole 112 of the earphone body 10. When the sound emitting tube 11 is inserted into the ear canal, the outside of the main body 21 contacts the ear canal to form a sealed cavity, and the sound transmitted from the sound emitting hole 112 may pass through the sound emitting passage 212 and be transmitted to the ear canal.

[0015] More specifically, the earpiece 20 further includes a noise canceling portion 22. At least a part of the noise canceling portion 22 is located within the accommodation space 211 and is provided such that its outer diameter decreases along the sound emission direction (the direction indicated by the dashed arrow in FIG. 2). A noise canceling cavity 30 is formed between the outer wall and the inner wall of the main body 21.

[0016] In the present application, the earpiece 20 uses a double-sealed structure that combines the main body 21 and the noise canceling portion 22, significantly increasing the thickness of the earpiece 20. Also, the noise canceling cavity 30 further increases the thickness of the earpiece 20. External noise needs to pass through the noise canceling portion 22, the noise canceling cavity 30, and the main body 21 in order to enter the human ear. When noise enters the relatively sealed noise canceling cavity 30, it is gradually absorbed, twisted, and attenuated due to the resistance of the noise canceling cavity 30. Therefore, the earpiece 20 has excellent noise canceling performance and can effectively prevent external noise from passing through the earpiece 20 and entering the ear canal.

[0017] Subsequently, as shown in FIGS. 1 and 2, the main body 21 includes a contact portion 213 and a sound emission portion 214. The contact portion 213 has an accommodation space 211, and the sound emission portion 214 is connected to the contact portion 213 and has a sound emission passage 212.

[0018] The end portion of the noise canceling portion 22 close to the sound emission passage is connected to the sound emission portion 214. The noise canceling cavity 30 is surrounded by the noise canceling portion 22, the contact portion 213, and the sound emission portion 214, eliminating the air leakage gap between the noise canceling portion 22 and the sound emission portion 214 and improving the sealing performance of the noise canceling cavity 30.

[0019] Subsequently, as shown in FIGS. 1 and 2, in some embodiments of the present application, the noise canceling unit 22 includes a first noise canceling section 221 and a second noise canceling section 222. The first noise canceling section 221 is connected to the sound emitting section 214. The second noise canceling section 222 is located on the side away from the sound emitting section 214 of the first noise canceling section 221, and is connected to the first noise canceling section 221 and is provided at an angle with the first noise canceling section 221. Note that by providing the outer diameter of the noise canceling unit 22 so as to decrease along the sound emitting direction, the second noise canceling section 222 extends outward with respect to the first noise canceling section 221 and is provided at an angle with the first noise canceling section 221. Thereby, the connection portion between the second noise canceling section 222 and the first noise canceling section 221 is recessed inward, increasing the volume of the noise canceling cavity 30, improving the noise blocking effect, reducing the diameter of the first noise canceling section 221, and improving the comfort when inserting the earphone into the ear. Also, when the end portion of the second noise canceling section 222 away from the first noise canceling section 221 protrudes from the accommodation space 211, the main body 21 can support the second noise canceling section 222 well, so that the second noise canceling section 222 is less likely to be deformed.

[0020] Furthermore, the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 is 150° to 160°. The angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 may be degrees such as 150°, 155°, 160°. As can be understood, the larger the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221, the greater the degree to which the outer surface of the second noise canceling section 222 spreads outward with respect to the outer surface of the first noise canceling section 221. If the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 is too large, the main body 21 and the ear canal will be in too close contact, causing discomfort to the user. If the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 is too small, the second noise canceling section 222 and the main body 21 will not be tightly connected, and the sealing of the noise canceling cavity 30 will tend to be poor.

[0021] In one embodiment of the present application, in order to increase the connection strength between the noise canceling part 22 and the main body 21 and avoid separation between the noise canceling part 22 and the main body 21, the noise canceling part 22 may be integrally formed with the main body 21.

[0022] Subsequently, as shown in FIGS. 1 and 2, in some embodiments of the present application, the connection location between the contact portion 213 and the sound emitting portion 214 is recessed inward. Further, as shown in FIG. 2, when the sound emitting tube 11 with the earpiece 20 attached is inserted into the ear canal, since the sound emitting portion 214 is located at the front end of the earpiece 20, the sound emitting portion 214 is located at a deeper position inside the ear canal. In the present application, when the sound emitting tube 11 is inserted into the ear canal using the contact portion 213, the airtightness is ensured and it does not affect the normal use of the earpiece 20. In this case, a throat constriction design is performed at the connection location between the contact portion 213 and the sound emitting portion 214 to form a structure similar to a nipple shape, reducing the contact area and pressing amount between the sound emitting portion 214 and the ear canal, reducing the sense of intrusion of the earpiece 20 into the ear canal, and improving the comfort when inserted into the ear.

[0023] In addition, as shown in FIG. 2, the curvature of the outer contour of the longitudinal section of the contact portion 213 is larger than the curvature of the outer contour of the longitudinal section of the sound emitting portion 214. That is, in the sound emitting direction, the degree of curvature of the outer surface of the sound emitting portion 214 is larger than the degree of curvature of the outer surface of the sound emitting portion 214. As a result, in the sound emitting direction, the reduction width of the outer diameter of the contact portion 213 is larger than the reduction width of the outer diameter of the sound emitting portion 214, thereby forming a structure that is recessed inward at the connection location between the contact portion 213 and the sound emitting portion 214.

[0024] Specifically, the outer diameter of the sound emitting portion 214 is provided to decrease along the direction toward the sound emitting portion 214 of the contact portion 213. As can be understood, the farther the region of the sound emitting portion 214 is from the contact portion 213, the smaller the outer diameter becomes. In this case, the outer diameter at the connection location between the sound emitting portion 214 and the contact portion 213 is the maximum outer diameter of the sound emitting portion 214. Thus, when the sound emitting tube 11 with the earpiece 20 attached is inserted into the ear canal, the outer diameter of the sound emitting portion 214 becomes smaller as it is inserted deeper into the ear canal, further reducing the sense of intrusion of the earpiece 20 into the ear canal and improving the comfort when inserted into the ear.

[0025] Note that the outer surface of the sound emitting portion 214 may be a curved surface or an inclined surface. When the outer surface of the sound emitting portion 214 is an inclined surface, the angle between the outer surface of the sound emitting portion 214 and the sound emitting direction of the earpiece 20 may be 15° to 20°. The angle between the outer surface of the sound emitting portion 214 and the sound emitting direction of the earpiece 20 may be 15°, 17°, 18°, or 20°, etc. If the angle between the outer surface of the sound emitting portion 214 and the sound emitting direction of the earpiece 20 is too small, the maximum outer diameter of the sound emitting portion 214 will become large, and thus, the ear canal may be strongly pressed. If the angle between the outer surface of the sound emitting portion 214 and the sound emitting direction of the earpiece 20 is too large, the maximum outer diameter of the sound emitting portion 214 will be too small, and thus, the size of the sound emitting opening 212 will become small, and the sound emitting opening 212 is likely to be blocked when the sound emitting portion 214 is pressed.

[0026] In one embodiment of the present application, the outer diameter of the contact portion 213 is provided so as to decrease along the direction toward the sound emitting portion 214 of the contact portion 213. That is, the closer the region is to the sound emitting portion 214 of the contact portion 213, the smaller the outer diameter becomes. Thereby, the contact area and the pressing amount between the contact portion 213 and the ear canal are decreased, the intrusion feeling of the earpiece 20 into the ear canal is reduced, and the comfort when inserting into the ear is improved. In this case, the outer diameter at the connection location between the contact portion 213 and the sound emitting portion 214 is the minimum outer diameter of the contact portion 213, and the outer surface of the contact portion 213 may be a curved surface or an inclined surface.

[0027] Naturally, in order to improve the sealing property of the earpiece 20 in the ear canal, the outer diameter of the contact portion 213 may be the same along the direction toward the sound emitting portion 214 of the contact portion 213.

[0028] Subsequently, as shown in FIG. 2, in some embodiments of the present application, the outer diameter at the connection location between the contact portion 213 and the sound emitting portion 214 is d1, and d1 is 6 millimeters to 7 millimeters. d1 may be 6 millimeters, 6.5 millimeters, or 7 millimeters, etc. If d1 is too large, the ear canal will be strongly pressed, causing discomfort to the user. If d1 is too small, the size of the sound emitting opening 212 will become small, and the sound emitting opening 212 is likely to be blocked when the sound emitting portion 214 is pressed.

[0029] Subsequently, as shown in FIG. 2, in some embodiments of the present application, the contact portion 213 and the sound emitting portion 214 are smoothly transitioned and connected.

[0030] Subsequently, as shown in FIG. 2, in some embodiments of the present application, the earpiece 20 further includes a mounting portion 23. The mounting portion 23 is located in the accommodation space 211 and is connected to an end portion close to the noise canceling portion 22 of the sound emitting portion 214, and the noise canceling portion 22 is provided surrounding its outer periphery. Note that the earpiece 20 may be attached to the sound emitting tube 11 by the mounting portion 23.

[0031] Furthermore, the hardness of the manufacturing material of the mounting portion 23 is greater than the hardness of the manufacturing material of the main body 21. When the sound emitting tube 11 to which the earpiece 20 is attached is inserted into the ear canal, the main body 21 contacts the ear canal. Since the manufacturing material of the main body 21 is soft, it can reduce the discomfort in the ear canal, prevent damage to the ear canal by the main body 21, and improve the comfort when inserted into the ear. Also, since the hardness of the mounting portion 23 is high, the connection strength between the mounting portion 23 and the sound emitting tube 11 can be increased, and the earpiece 20 can be made less likely to fall into the ear canal when the sound emitting tube 11 is inserted into the ear canal. The manufacturing materials of both the mounting portion 23 and the main body 21 may be silicone rubber. The hardness of the manufacturing material of the mounting portion 23 is 60A or more, and the hardness of the manufacturing material of the main body 21 is 20A to 30A.

[0032] As shown in FIG. 2, in one embodiment of the present application, the end of the sound emission passage 212 of the noise canceling unit 22 that is away from the sound emission passage 212 protrudes outside the accommodation space 211, and the end of the main body 21 that is away from the sound emission passage 212 abuts against the outer wall of the noise canceling unit 22. By using the end of the main body 21 that is away from the sound emission passage 212 to support the noise canceling unit 22, it becomes difficult for the noise canceling unit 22 to deform. Also, the end of the main body 21 that is away from the sound emission passage 212 is in close contact with the outer wall of the noise canceling unit 22, ensuring the sealing performance of the noise canceling cavity 30. When the noise canceling unit 22 is removable, it facilitates the attachment and detachment of the noise canceling unit 22. The length of the end of the noise canceling unit 22 that protrudes from the accommodation space 211 away from the sound emission passage 212 can be selected according to actual needs.

[0033] As shown in FIG. 3, the noise canceling unit 22 may be located within the accommodation space 211. The end of the noise canceling unit 22 that is away from the sound emission passage 212 abuts against the inner wall of the main body 21, preventing the sealing of the noise canceling cavity 30 from being easily deteriorated due to the earpiece 20 being pressed during the use of the earphone main body 10 and the edge of the noise canceling unit 22 being rolled up.

[0034] Note that FIGS. 2 and 3 show a case where a throat constriction design is performed on the connection portion between the contact portion 213 and the sound emission portion 214. As shown in FIG. 4, the connection portion between the contact portion 213 and the sound emission portion 214 may also protrude outward.

[0035] Based on the above earpiece 20, the present application further provides an earphone. As shown in FIG. 5, the earphone has an earphone main body 10 and the earpiece 20 in any one of the above embodiments. The earphone main body 10 has a sound emission tube 11, the sound emission tube 11 has a sound path 111, and a sound emission hole 112 communicating with the sound path 111 is provided at the end of the sound emission tube 11.

[0036] The sound emitting tube 11 extends into the accommodation space 211, the sound emitting hole 112 communicates with the sound emitting passage 212, and the noise canceling part 22 is provided surrounding the outer periphery of the sound emitting tube 11.

[0037] Specifically, subsequently, as shown in FIG. 5, a decompression hole 113 communicating with the sound passage 111 may be provided on the side portion of the sound emitting tube 11. As can be understood, when the sound emitting tube 11 is inserted into the ear canal and the outside of the main body 21 contacts the ear canal, a sealed cavity is formed between the earpiece 20 and the ear canal, thereby blocking noise in a sealed manner. However, when the sound emitting tube 11 is inserted into the ear canal, a problem that the listening environment is sealed and the sound quality is impaired due to the uneven sound pressure inside and outside the sound passage 111 is caused. The decompression hole 113 can maintain the sound pressure inside and outside the sound passage 111 to be uniform by communicating the sound passage 111 with the atmosphere.

[0038] In one embodiment of the present application, a decompression cavity 40 is formed between the noise canceling part 22 and the sound emitting tube 11 (as shown in FIG. 1). The decompression cavity 40 communicates with the sound passage 111 via the decompression hole 113 and has a decompression port 41. Note that the decompression cavity 40 is always in communication with the atmosphere via the decompression port 41. When the sound emitting tube 11 is inserted into the ear canal, the sound passage 111 can communicate with the atmosphere via the decompression hole 113 and the decompression cavity 40, thereby maintaining the same sound pressure inside and outside the sound passage 111.

[0039] Furthermore, a support part 50 is provided between the noise canceling part 22 and the sound emitting tube 11. The support part 50 is located in the decompression cavity 40. By using the support part 50, support is provided between the noise canceling part 22 and the sound emitting tube 11 to maintain the existence of the decompression cavity 40, and it is possible to avoid the situation that when the sound emitting tube 11 is inserted into the ear canal, the main body 21 and the noise canceling part 22 are pressed and the decompression cavity 40 is sealed.

[0040] As shown in Fig. 1, a plurality of support portions 50 are provided. The plurality of support portions 50 are arranged at intervals surrounding the outer periphery of the sound emitting tube 11, and a decompression port 41 is formed between two adjacent support portions 50. By providing a plurality of support portions 50 on the outer peripheral side of the sound emitting tube 11, when the sound emitting tube 11 is inserted into the ear canal, it is possible to further avoid the situation where the main body 21 and the noise canceling portion 22 are pressed and the decompression cavity 40 is sealed. Furthermore, the plurality of support portions 50 may be uniformly arranged surrounding the outer periphery of the sound emitting tube 11.

[0041] Subsequently, as shown in Fig. 5, in some embodiments of the present application, the outer side of the sound emitting tube 11 has a first locking groove 114, and the mounting portion 23 is engaged in the first locking groove 114. By engaging the mounting portion 23 with the first locking groove 114, the connection between the earpiece 20 and the sound emitting tube 11 can be realized, and the separation between the earpiece 20 and the sound emitting tube 11 can be prevented.

[0042] Furthermore, the hardness of the manufacturing material of the mounting portion 23 is greater than the hardness of the manufacturing material of the main body 21. When the sound emitting tube 11 is inserted into the ear canal, the main body 21 contacts the ear canal. Since the manufacturing material of the main body 21 is soft, it is possible to reduce the discomfort in the ear canal, prevent damage to the ear canal by the main body 21, and improve the comfort when inserting into the ear. Also, because the hardness of the mounting portion 23 is high, the connection strength between the mounting portion 23 and the sound emitting tube 11 can be increased, so that when the sound emitting tube 11 is inserted into the ear canal, the main body 21 is less likely to fall into the ear canal. The manufacturing materials of the mounting portion 23 and the main body 21 may both be silicone rubber. The hardness of the manufacturing material of the mounting portion 23 is 60A or more, and the hardness of the manufacturing material of the main body 21 is 20A - 30A.

[0043] In one embodiment of the present application, the noise canceling portion 22 is fitted to the mounting portion 23, and the mounting portion 23 can be used to maintain the existence of the decompression cavity 40.

[0044] In some embodiments of the present application, the end portion of the sound emission passage 212 of the noise canceling unit 22 may be provided at a distance from the main body 21, and the noise canceling cavity 30 is surrounded by the noise canceling unit 22, the main body 21, and the sound emission tube 11.

Embodiment

[0045] This embodiment provides an earphone that solves the problem that since the earpiece assembly is generally thin, external noise easily penetrates the earpiece assembly and enters the human ear.

[0046] As shown in FIGS. 6 and 7, the earphone according to the present application includes an earphone main body 10 (corresponding to the earphone main body 10 in Embodiment 1) and an earpiece assembly 20 (corresponding to the earpiece 20 in Embodiment 1). The earphone main body 10 has a sound emission tube 11 (corresponding to the sound emission tube 11 in Embodiment 1). The sound emission tube 11 has a sound passage 111 (corresponding to the sound passage 111 in Embodiment 1). At the end of the sound emission tube 11, a sound emission hole 112 (corresponding to the sound emission hole 112 in Embodiment 1) communicating with the sound passage 111 is provided. The earpiece assembly 20 includes an earpiece main body 21 (corresponding to the main body 21 in Embodiment 1). The earpiece main body 21 has a housing space 211 (corresponding to the housing space 211 in Embodiment 1) and a sound emission passage 212 (corresponding to the sound emission passage 212 in Embodiment 1) communicating with the housing space 211. The sound emission tube 11 extends into the housing space 211, and the sound emission hole 112 communicates with the sound emission passage 212. The overall shape of the earpiece main body 21 may be substantially bowl-shaped.

[0047] Note that the earphone may be a canal-type wired earphone or a wireless earphone, and the earphone body 10 may be communicatively connected to a playback device such as a mobile phone, a notebook computer, a desktop computer, an MP3, or a wearable audio device. The sound emitting tube 11 is inserted into the user's ear canal. When the sound emitting tube 11 is inserted into the ear canal, the sound emitting hole 112 is located inside the ear canal, and the sound reproduced by the playback device may be sequentially transmitted through the sound passage 111 and the sound emitting hole 112 to the ear canal. The specific operating principle of the earphone is known in the related art and will be omitted in this application. The earpiece assembly 20 can avoid being directly contacted and damaged by the ear canal and the sound emitting tube 11, and can also provide high wearing comfort for humans. The sound emitting passage 212 of the earpiece body 21 communicates with the sound emitting hole 112 of the earphone body 10. When the sound emitting tube 11 is inserted into the ear canal, the outside of the earpiece body 21 contacts the ear canal to form a sealed cavity, and the sound transmitted from the sound emitting hole 112 may pass through the sound emitting passage 212 and be transmitted to the ear canal.

[0048] More specifically, the earpiece assembly 20 further includes a noise canceling member 22 (corresponding to the noise canceling part 22 in Embodiment 1), at least a part of the noise canceling member 22 is located in the accommodation space 211, the noise canceling member 22 is externally fitted to the sound emitting tube 11, and the noise canceling member 22, the sound emitting tube 11, and the earpiece body 21 surround a noise canceling cavity 30 (corresponding to the noise canceling cavity 30 in Embodiment 1).

[0049] In addition, in the present application, the earpiece assembly 20 uses a double-sealed structure that combines the earpiece body 21 and the noise-canceling member 22, significantly increasing the thickness of the earpiece assembly 20. Also, the noise-canceling cavity 30 further increases the thickness of the earpiece assembly 20. External noise needs to pass through the noise-canceling member 22, the noise-canceling cavity 30, and the earpiece body 21 to enter the human ear. Also, when noise enters the relatively sealed noise-canceling cavity 30, it is gradually absorbed, twisted, and attenuated by the resistance of the noise-canceling cavity 30. Therefore, the earpiece assembly 20 has excellent noise-canceling performance and can effectively prevent external noise from passing through the earpiece assembly 20 and entering the ear canal.

[0050] Furthermore, since the noise-canceling member 22 is removably connected to the earpiece body 21 and the earphone body 10, it facilitates the removal and replacement of the noise-canceling member 22. In the present application, the noise-canceling member 22 and the earpiece body 21 are independent units, and the noise-canceling member 22 can be freely removed and replaced. Thereby, a noise-canceling member 22 with an appropriate size can be selected based on the size of the user's ear canal, improving the comfort when inserting the earpiece assembly 20 into the ear.

[0051] Subsequently, as shown in FIG. 7, the earpiece body 21 includes a contact portion 213 (corresponding to the contact portion 213 in Embodiment 1) and a sound-emitting portion 214 (corresponding to the sound-emitting portion 214 in Embodiment 1). The contact portion 213 has an accommodation space 211, and the sound-emitting portion 214 is connected to the contact portion 213 and has a sound-emitting passage 212. The end portion of the noise-canceling member 22 close to the sound-emitting passage 212 is provided at a distance from the sound-emitting portion 214, preventing the noise-canceling member 22 from affecting the attachment of the earpiece body 21 and the sound-emitting tube 11.

[0052] Subsequently, as shown in FIG. 7, in some embodiments of the present application, the noise canceling member 22 includes a first noise canceling section 221 (corresponding to the first noise canceling section 221 in Embodiment 1) and a second noise canceling section 222 (corresponding to the second noise canceling section 222 in Embodiment 1). The first noise canceling section 221 is provided at a distance from the sound emitting portion 214, and the second noise canceling section 222 is located on the side away from the sound emitting portion 214 of the first noise canceling section 221, connected to the first noise canceling section 221, and provided at an angle with the first noise canceling section 221. Note that by providing the outer diameter of the noise canceling member 22 to decrease along the sound emitting direction (the direction indicated by the dashed arrow in FIG. 7), the second noise canceling section 222 extends outward with respect to the first noise canceling section 221 and is provided at an angle with the first noise canceling section 221. As a result, the connection portion between the second noise canceling section 222 and the first noise canceling section 221 is recessed inward, increasing the volume of the noise canceling cavity 30, improving the noise blocking effect, decreasing the diameter of the first noise canceling section 221, and improving the comfort when inserting the earphone into the ear. Also, when the end portion of the second noise canceling section 222 away from the first noise canceling section 221 protrudes from the accommodation space 211, the earpiece body 21 can support the second noise canceling section 222 well, making the second noise canceling section 222 less likely to deform.

[0053] Furthermore, the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 is 150° to 160°. The angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 may be an angle such as 150°, 155°, 160°. As can be understood, the larger the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221, the greater the degree to which the outer surface of the second noise canceling section 222 extends outward with respect to the outer surface of the first noise canceling section 221. If the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 is too large, the earpiece body 21 and the ear canal will be in too close contact, causing discomfort to the user. If the angle between the outer surface of the second noise canceling section 222 and the outer surface of the first noise canceling section 221 is too small, the second noise canceling section 222 and the earpiece body 21 will not be closely connected, and the sealing of the noise canceling cavity 30 will tend to be poor.

[0054] Note that the first noise canceling section 221 and the second noise canceling section 222 may be integrally formed, or may be connected by a method such as fastening or adhesion after being formed respectively.

[0055] Subsequently, as shown in FIG. 7, in one embodiment of the present application, the outside of the sound emitting tube 11 has a first locking groove 114, and the first noise canceling section 221 is engaged within the first locking groove 114. By engaging the first noise canceling section 221 with the first locking groove 114, a detachable connection between the noise canceling member 22 and the sound emitting tube 11 is realized, and separation between the noise canceling member 22 and the sound emitting tube 11 during use can be prevented. When it is not necessary to use the noise canceling member 22, when the noise canceling member 22 is damaged, or when it is necessary to use a different type of noise canceling member 22, the noise canceling member 22 can be removed and replaced. During the use of the noise canceling member 22, engagement between the first noise canceling section 221 and the first locking groove 114 can prevent the noise canceling member 22 from moving up and down and affecting the use of the earpiece assembly 20.

[0056] Specifically, the first noise canceling section 221 may be press-fitted with the sound emitting tube 11. Thereby, the connection strength between the first noise canceling section 221 and the sound emitting tube 11 when the noise canceling member 22 is used is increased, and separation between the noise canceling member 22 and the sound emitting tube 11 during use is prevented.

[0057] Subsequently, as shown in FIG. 7, in some embodiments of the present application, a pressure reducing hole 113 (corresponding to the pressure reducing hole 113 in Embodiment 1) communicating with the sound passage 111 may be provided on the side of the sound emitting tube 11. As can be understood, when the sound emitting tube 11 is inserted into the ear canal and the outside of the earpiece body 21 contacts the ear canal, a sealed cavity is formed between the earpiece assembly 20 and the ear canal to block noise in a sealed manner. However, when the sound emitting tube 11 is inserted into the ear canal, a problem is caused in that the listening environment is sealed and the sound quality is impaired due to non-uniform sound pressure inside and outside the sound passage 111. The pressure reducing hole 113 can maintain the sound pressure inside and outside the sound passage 111 to be uniform by communicating the sound passage 111 with the atmosphere.

[0058] Furthermore, the decompression hole 113 is located between the noise canceling member 22 and the sound emitting portion 214, and the sound passage 111 communicates with the noise canceling cavity 30 via the decompression hole 113. As can be understood, when the sound emitting tube 11 is inserted into the ear canal, the sound passage 111 can be decompressed by the decompression hole 113 and exhausted into the noise canceling cavity 30, and by performing a certain degree of decompression, the sound pressure inside and outside the sound passage 111 can be maintained the same.

[0059] Subsequently, as shown in FIG. 7, the earpiece assembly may further include an attachment portion 23 (corresponding to the attachment portion 23 in Embodiment 1). The attachment portion 23 is located within the accommodation space 211, located between the noise canceling member 22 and the sound emitting portion 214, and is connected to the sound emitting portion 214. The outside of the sound emitting tube 11 has a second locking groove 115 (corresponding to the first locking groove 114 in Embodiment 1), and the attachment portion 23 is engaged within the second locking groove 115. Note that the earpiece body 21 may be attached to the sound emitting tube 11 by the attachment portion 23.

[0060] Furthermore, the decompression hole 113 is located between the attachment portion 23 and the noise canceling member 22. Specifically, the decompression hole 113 is located between the first noise canceling section 221 and the attachment portion 23, and it is possible to avoid the first noise canceling section 221 and the attachment portion 23 from blocking the decompression hole 113.

[0061] In one embodiment of the present application, the hardness of the manufacturing material of the attachment portion 23 is greater than the hardness of the manufacturing material of the earpiece body 21. When the sound emitting tube 11 with the earpiece assembly 20 attached is inserted into the ear canal, the earpiece body 21 comes into contact with the ear canal. Since the manufacturing material of the earpiece body 21 is soft, it can reduce the discomfort in the ear canal, prevent damage to the ear canal caused by the earpiece body 21, improve the comfort when inserting into the ear, and also, because the hardness of the attachment portion 23 is high, it can increase the connection strength between the attachment portion 23 and the sound emitting tube 11, so that the earpiece assembly 20 is less likely to fall into the ear canal when the sound emitting tube 11 is inserted into the ear canal. The manufacturing material of the attachment portion 23 and the manufacturing material of the earpiece body 21 may both be silicone rubber. The hardness of the manufacturing material of the attachment portion 23 is 60A or more, and the hardness of the manufacturing material of the earpiece body 21 is 20A to 30A.

[0062] Subsequently, as shown in FIG. 7, in one embodiment of the present application, the wall thickness of the first noise canceling section 221 is greater than the wall thickness of the second noise canceling section 222. As can be understood, since the wall thickness of the first noise canceling section 221 is large, it can guarantee the structural strength of the first noise canceling end portion 221 and prevent the first noise canceling section 221 from being damaged. Since the wall thickness of the second noise canceling section 222 is small, it is easier to deform when the second noise canceling section 222 is pressed, and it can avoid the second noise canceling section 222 from pressing the ear canal.

[0063] Subsequently, as shown in FIG. 7, the entire second noise canceling section 222 may extend only along one direction, that is, the second noise canceling section 222 has a one-stage structure. Naturally, as shown in FIG. 8, the second noise canceling section 222 may be composed of multiple connected sections, and the extending directions of the respective sections may be different. Subsequently, as shown in FIGS. 7 and 8, in one embodiment of the present application, the end portion of the noise canceling member 22 away from the sound emitting passage 212 protrudes outside the accommodation space 211, and the end portion of the earpiece body 21 away from the sound emitting passage 212 abuts against the outer wall of the noise canceling member 22. By supporting the noise canceling member 22 using the end portion of the earpiece body 21 away from the sound emitting passage 212, the noise canceling member 22 is less likely to deform, and the end portion of the earpiece body 21 away from the sound emitting passage 212 is in close contact with the outer wall of the noise canceling member 22, ensuring the sealing performance of the noise canceling cavity 30. When the noise canceling member 22 is removable, the attachment and detachment of the noise canceling member 22 are facilitated, and the length of the end portion of the noise canceling member 22 away from the sound emitting passage 212 protruding from the accommodation space 211 can be selected according to actual requirements.

[0064] As shown in FIG. 9, the noise canceling member 22 may be located within the accommodation space 211. The end portion of the noise canceling member 22 away from the sound emitting passage 212 abuts against the inner wall of the earpiece body 21, preventing the edge of the noise canceling member 22 from curling up due to the earpiece assembly 20 being pressed during the use of the earphone body 10, which may otherwise cause poor sealing of the noise canceling cavity 30.

[0065] Note that FIGS. 7 to 9 show a case where the connection portion between the contact portion 213 and the sound emitting portion 214 protrudes outward. As shown in FIG. 10, a throat design may also be performed on the connection portion between the contact portion 213 and the sound emitting portion 214.

[0066] Specifically, as shown in FIG. 10, the connection portion between the contact portion 213 and the sound emitting portion 214 is recessed inward. Further, as shown in FIG. 10, when the sound emitting tube 11 to which the earpiece assembly 20 is attached is inserted into the ear canal, since the sound emitting portion 214 is located at the front end of the earpiece assembly 20, the sound emitting portion 214 is located at a deeper position inside the ear canal. In the present application, when the sound emitting tube 11 is inserted into the ear canal using the contact portion 213, the sealing performance is ensured without affecting the normal use of the earpiece assembly 20. A mouth constriction design is performed at the connection portion between the contact portion 213 and the sound emitting portion 214 to form a structure similar to a nipple shape, reducing the contact area and pressing amount between the sound emitting portion 214 and the ear canal, reducing the intrusion feeling of the earpiece assembly 20 into the ear canal, and improving the comfort when inserted into the ear.

[0067] As shown in FIG. 10, the curvature of the outer contour of the longitudinal section of the contact portion 213 is larger than the curvature of the outer contour of the longitudinal section of the sound emitting portion 214. That is, in the sound emitting direction, the degree of curvature of the outer surface of the sound emitting portion 214 is larger than the degree of curvature of the outer surface of the sound emitting portion 214. Thus, in the sound emitting direction, the reduction width of the outer diameter of the contact portion 213 is larger than the reduction width of the outer diameter of the sound emitting portion 214, and thereby, a structure that is recessed inward can be formed at the connection portion between the contact portion 213 and the sound emitting portion 214.

[0068] Specifically, the outer diameter of the sound emitting portion 214 is provided so as to decrease along the direction toward the sound emitting portion 214 of the contact portion 213. As can be understood, the farther the region of the sound emitting portion 214 is from the contact portion 213, the smaller the outer diameter becomes. In this case, the outer diameter at the connection portion of the sound emitting portion 214 with the contact portion 213 is the maximum outer diameter of the sound emitting portion 214. Thus, when the sound emitting tube 11 to which the earpiece assembly 20 is attached is inserted into the ear canal, the outer diameter of the sound emitting portion 214 becomes smaller as it is inserted deeper into the ear canal, further reducing the intrusion feeling of the earpiece assembly 20 into the ear canal and improving the comfort when inserted into the ear.

[0069] Note that the outer surface of the sound emitting part 214 may be a curved surface or an inclined surface. When the outer surface of the sound emitting part 214 is an inclined surface, the angle between the outer surface of the sound emitting part 214 and the sound emitting direction of the earpiece assembly 20 may be 15° to 20°. The angle between the outer surface of the sound emitting part 214 and the sound emitting direction of the earpiece assembly 20 may be 15°, 17°, 18° or 20°, etc. If the angle between the outer surface of the sound emitting part 214 and the sound emitting direction of the earpiece assembly 20 is too small, the maximum outer diameter of the sound emitting part 214 will become large, and thus, the ear canal may be strongly pressed. If the angle between the outer surface of the sound emitting part 214 and the sound emitting direction of the earpiece assembly 20 is too large, the maximum outer diameter of the sound emitting part 214 will be too small, and thus, the size of the sound emitting port 212 will become small, and the sound emitting port 212 is likely to be blocked when the sound emitting part 214 is pressed.

[0070] In one embodiment of the present application, the outer diameter of the contact part 213 is provided so as to decrease along the direction toward the sound emitting part 214 of the contact part 213, that is, the closer the region is to the sound emitting part 214 of the contact part 213, the smaller the outer diameter becomes. Thereby, the contact area and the pressing amount between the contact part 213 and the ear canal are decreased, the intrusion feeling of the earpiece assembly 20 into the ear canal is reduced, and the comfort when inserting into the ear is improved. In this case, the outer diameter of the connection location of the contact part 213 with the sound emitting part 214 is the minimum outer diameter of the contact part 213, and the outer surface of the contact part 213 may be a curved surface or an inclined surface.

[0071] Naturally, in order to improve the sealing property inside the ear canal of the earpiece assembly 20, the outer diameter of the contact part 213 may be the same along the direction toward the sound emitting part 214 of the contact part 213.

[0072] Subsequently, as shown in FIG. 10, in some embodiments of the present application, the outer diameter of the connection portion between the contact portion 213 and the sound emitting portion 214 is d1, and d1 is 6 millimeters to 7 millimeters. d1 may be, for example, 6 millimeters, 6.5 millimeters, or 7 millimeters. If d1 is too large, it will strongly press the ear canal and cause discomfort to the user. If d1 is too small, the size of the sound emitting port 212 will be small, and when the sound emitting portion 214 is pressed, the sound emitting port 212 is likely to be blocked.

[0073] Subsequently, as shown in FIG. 10, in some embodiments of the present application, the contact portion 213 and the sound emitting portion 214 are smoothly transitioned and connected.

[0074] The same or similar reference numerals in the drawings of this embodiment correspond to the same or similar members. In the description of the present application, the orientation or positional relationship represented by terms such as "upper", "lower", "left", and "right" is the orientation or positional relationship based on the illustration, and is only for explaining the present application and simplifying the description, and does not indicate or suggest that the device or element mentioned must have a specific orientation and be configured and operated in a specific orientation. It should be understood that the terms for explaining the positional relationship in the drawings are only used for exemplary explanations and should not be understood as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0075] The above description is only a preferred embodiment of the present application and does not limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present application should all be included within the protection scope of the present application.

Claims

1. An earpiece applicable to an earphone having an earphone body with a sound emitting tube, wherein the sound emitting tube has a sound passage and a sound emitting hole communicating with the sound passage is provided at an end of the sound emitting tube, a main body provided with an accommodation space and a sound emitting passage communicating with the accommodation space, the sound emitting passage communicating with the sound emitting hole of the sound emitting tube, and a noise canceling part at least a part of which is located in the accommodation space, provided such that an outer diameter decreases along the sound emitting direction, and a noise canceling cavity is formed between an outer wall and an inner wall of the main body.

2. An end of the noise canceling part away from the sound emitting passage abuts against the inner wall of the main body, or an end of the noise canceling part away from the sound emitting passage protrudes outside the accommodation space, and an end of the main body away from the sound emitting passage abuts against an outer wall of the noise canceling part. The earpiece according to claim 1.

3. The main body includes a contact part having the accommodation space, and a sound emitting part connected to the contact part and having the sound emitting passage. An end of the noise canceling part close to the sound emitting passage is connected to the sound emitting part, and the noise canceling cavity is surrounded by the noise canceling part, the contact part and the sound emitting part. The earpiece according to claim 1.

4. The noise canceling part includes a first noise canceling section connected to the sound emitting part, and a second noise canceling section located on a side of the first noise canceling section away from the sound emitting part, connected to the first noise canceling section, and provided at an angle to the first noise canceling section. The earpiece according to claim 3.

5. An angle between an outer surface of the second noise canceling section and an outer surface of the first noise canceling section is 150° to 160°. The earpiece according to claim 4.

6. A connection portion between the contact part and the sound emitting part is recessed inward. The earpiece according to claim 3.

7. The noise canceling part is integrally formed with the main body. The earpiece according to claim 3.

8. The earpiece according to claim 3, further comprising a mounting portion located within the accommodation space, connected to an end portion of the sound emitting portion close to the noise canceling portion, and having the noise canceling portion provided around its outer periphery.

9. The earpiece according to claim 8, wherein the hardness of the manufacturing material of the mounting portion is greater than the hardness of the manufacturing material of the main body.

10. Including an earphone main body and an earpiece, the earphone main body has a sound emitting tube, the sound emitting tube has a sound passage, a sound emitting hole communicating with the sound passage is provided at an end portion of the sound emitting tube, and the earpiece A main body having an accommodation space and a sound emitting passage communicating with the accommodation space, A noise canceling portion at least partially located within the accommodation space, provided such that the outer diameter decreases along the sound emitting direction, and having a noise canceling cavity formed between the outer side wall and the inner side wall of the main body. The sound emitting tube extends into the accommodation space, the sound emitting hole communicates with the sound emitting passage, and the noise canceling portion is provided surrounding the outer periphery of the sound emitting tube. An earphone.

11. A decompression hole communicating with the sound passage is provided on a side portion of the sound emitting tube, a decompression cavity is formed between the noise canceling portion and the sound emitting tube, the decompression cavity communicates with the sound passage through the decompression hole, and has a decompression port. The earphone according to claim 10.

12. The earphone according to claim 11, wherein a support portion located within the decompression cavity is provided between the noise canceling portion and the sound emitting tube.

13. The earphone according to claim 12, wherein a plurality of the support portions are provided, the plurality of support portions are arranged at intervals surrounding the outer periphery of the sound emitting tube, and the decompression port is formed between two adjacent support portions.

14. The earpiece Is located within the accommodation space, is connected to an end portion of the sound emitting portion close to the noise canceling portion, and further includes a mounting portion provided with the noise canceling portion surrounding its outer periphery. The outer side of the sound emitting tube has a second locking groove, and the mounting portion is engaged within the second locking groove. The earphone according to claim 10.

15. The end portion of the noise canceling portion away from the sound emitting passage abuts against the inner side wall of the main body, or The end portion of the noise canceling unit that is away from the sound emitting passage protrudes outside the accommodation space, and the end portion of the main body that is away from the sound emitting passage abuts against the outer wall of the noise canceling unit. The earphone according to claim 10.

16. The main body has a contact portion having the accommodation space, and a sound emitting portion connected to the contact portion and having the sound emitting passage, and includes: The end portion of the noise canceling unit that is close to the sound emitting passage is connected to the sound emitting portion, and the noise canceling cavity is surrounded by the noise canceling unit, the contact portion, and the sound emitting portion. The earphone according to claim 10.

17. The noise canceling unit includes a first noise canceling section connected to the sound emitting portion, and a second noise canceling section that is located on the side away from the sound emitting portion of the first noise canceling section and is connected to the first noise canceling section and is provided at an angle to the first noise canceling section. The earphone according to claim 16.

18. The angle between the outer surface of the second noise canceling section and the outer surface of the first noise canceling section is 150° to 160°. The earphone according to claim 17.

19. The connection location between the contact portion and the sound emitting portion is recessed inward. The earphone according to claim 16.

20. The noise canceling unit is integrally formed with the main body. The earphone according to claim 16.

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