Earphone

Abstract

The present application discloses an earphone, comprising an earphone body. The earphone body comprises a housing and a sound production unit; an accommodating cavity and sound outlets and a pressure relief opening communicated with the accommodating cavity are formed in the housing; the sound production unit is arranged in the accommodating cavity and comprises a frame, and a vibration system and a magnetic circuit system mounted on the frame; the vibration system comprises a diaphragm connected to the frame; a pressure relief channel is formed in the frame, or the frame and the magnetic circuit system cooperate to define a pressure relief channel, and first air guide holes and a second air guide hole that are respectively communicated with the pressure relief channel are further formed in the frame; the first air guide holes are oriented towards the diaphragm, and the second air guide hole is communicated with the pressure relief opening. The technical solution of the present application can improve the low-frequency performance of the earphone, thereby improving the user experience.

Description

earphone

[0001] This application claims priority to Chinese patent application No. 202323525701.0, filed on December 22, 2023, with invention name “Headphones”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of earphones, and in particular to an earphone. Background Art

[0003] At present, when the type of earphones is open-type earphones, the open-type earphones are attached to the outside of the ear canal, and the earphones do not block the ear canal, which ensures that the user can listen to the sound of the earphones as well as the sound of the outside world, thereby improving safety and comfort.

[0004] Since these are open-back headphones, the area between the speaker and the ear canal opening is not sealed, and the headphones leak a lot of sound, especially low-frequency sounds. Summary of the Invention

[0005] The embodiment of the present application provides an earphone that can improve the low-frequency performance of the earphone to enhance the user experience.

[0006] An embodiment of the present application provides an earphone, the earphone comprising an earphone body, the earphone body comprising:

[0007] A housing having an accommodating cavity formed therein and a sound outlet and a pressure relief port communicated with the accommodating cavity; and

[0008] A sound-generating unit is provided inside the accommodating cavity and includes a basin frame and a vibration system and a magnetic circuit system mounted on the basin frame, wherein the vibration system includes a diaphragm connected to the basin frame;

[0009] In which, a pressure relief channel is formed inside the basin frame, or the basin frame and the magnetic circuit system cooperate to form a pressure relief channel, and the basin frame also forms a first air guide hole and a second air guide hole respectively connected to the pressure relief channel, the first air guide hole is arranged toward the diaphragm, and the second air guide hole is connected to the pressure relief port.

[0010] Based on the earphones according to the embodiment of the present application, a pressure relief channel is provided so that the air between the diaphragm and the basin frame does not immediately leak out of the shell through the pressure relief port. When the sound unit is working, each vibration of the diaphragm will push as much air as possible in the space between the diaphragm and the basin frame to vibrate, thereby increasing the volume of the air to increase the mass of the air, thereby reducing the resonance frequency f0 and improving the low-frequency performance of the earphones to a certain extent.

[0011] Moreover, compared with the prior art, in which a pressure relief channel is formed between the wall surface of the basin frame and the cover surface of the rear cavity cover, the present application forms a pressure relief channel inside the basin frame, or the basin frame and the magnetic circuit system cooperate to form a pressure relief channel, and the pressure relief port is independent of the installation cavity. Therefore, there is no need to specially provide a rear cavity cover to specifically protect electronic components such as the main control board. Therefore, the present application can cancel the structure of the rear cavity cover. When the structure of the rear cavity cover is cancelled, the volume of the pressure relief channel occupied by the wall thickness of the rear cavity cover itself can be avoided. Moreover, the shell of the present application does not need to reserve an assembly gap for the rear cavity cover to be installed inside the accommodating cavity. In this way, the volume of the pressure relief channel can be effectively increased, so that when the diaphragm is vibrating, the volume of air pushed by the diaphragm is larger, thereby increasing the mass of the air, effectively reducing the resonance frequency f0, and improving the low-frequency performance of the headphones to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0013] FIG1 is a schematic diagram of an embodiment of an earphone according to the present application fitting into a user's ear;

[0014] FIG2 is a schematic structural diagram of an embodiment of the earphone of the present application with the earphone body removed from the second shell;

[0015] FIG3 is a schematic structural diagram of the earphone body shown in FIG2 with the housing removed from one viewing angle;

[0016] FIG4 is a schematic structural diagram of the first shell of the earphone body shown in FIG2 ;

[0017] FIG5 is a schematic structural diagram of another embodiment of the earphone of the present application with the housing removed;

[0018] FIG6 is a structural diagram of another embodiment of the earphone of the present application with the shell removed from the earphone body.

[0019] Explanation of the accompanying reference numerals: 100, earphone; 10, earphone body; 11, housing; 111, first housing; 111a, accommodating cavity; 111b, mounting cavity; 111c, pressure relief port; 111d, fourth air guide hole; 111e, first step; 111f, second step; 1111, sound outlet; 1111a, sound outlet; 113, second housing; 13, sound unit; 131, basin frame; 131a, pressure relief channel; 131b, first air guide hole; 131c, second air guide hole; 131d, Third air guide hole; 1311, first ring body; 1311a, first end face; 1311b, third step; 1313, second ring body; 1313a, second end face; 1315, outer ring wall; 1317, inner ring wall; 1318, first part; 1319, second part; 15, vibration system; 151, diaphragm; 153, voice coil; 17, magnetic circuit system; 171, magnetic bowl; 173, washer; 175, magnet; 19, copper ring; 300, ear; 310, ear canal opening.

[0020] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0022] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0023] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0025] At present, when the type of earphones is open-type earphones, the open-type earphones are attached to the outside of the ear canal, and the earphones do not block the ear canal, which ensures that the user can listen to the sound of the earphones as well as the sound of the outside world, thereby improving safety and comfort.

[0026] Since these are open-back headphones, the area between the speaker and the ear canal opening is not sealed, and the headphones leak a lot of sound, especially low-frequency sounds.

[0027] To solve the above problem, referring to FIG. 1 , the present application proposes an earphone 100 for receiving electrical signals from a media player or receiver and converting the electrical signals into audible sound waves using a speaker close to the user's ear.

[0028] Among them, the type of earphones 100 can be open-type or closed-type. It can be seen that when the type of earphones 100 is open-type, the user will not have a significant sense of isolation from the outside world when using the open-type earphones, and will have the advantages of natural and open listening, and transparent sound. When the type of earphones 100 is closed-type, it will have the advantages of isolating external noise and more focused sound quality. In the following content, this application still takes the earphones 100 as the type of open-type earphones, and further explains how the earphones 100 of this application can better restore and amplify the sound volume of each frequency band in the original signal.

[0029] Open-ear headphones can be either air conduction headphones 100 or bone conduction headphones. Air conduction headphones 100 have a built-in sound unit and a cavity with apertures for directionally conducting sound. Bone conduction headphones, on the other hand, have a built-in oscillator that converts sound signals into vibrations, which are then conducted through the bones.

[0030] It can be understood that the open earphones should at least have a wearing state, in which the open earphones fit the user's ears 300 so as to be relatively fixed to the user's ears 300. In this state, the user can obtain a relatively ideal listening effect.

[0031] An embodiment of the present application provides an earphone 100, which may be an air-conduction open-earphone. Compared with bone-conduction earphones, air-conduction open-earphones have higher sound quality, and because they transmit sound in a direction, sound leakage is also smaller.

[0032] Referring to Figure 1 , the headset 100 includes an earphone body 10 and a neckband (not shown). The earphone body 10 receives electrical signals from a media player or receiver and converts them into audible sound waves using a speaker positioned close to the user's ear. The neckband is designed to be worn around the user's neck. Two earphone bodies 10 are provided, connected at either end of the neckband along its extension.

[0033] During actual use, the user can hang the neckband around their neck, and the two earphone bodies 10 can be worn on the user's left and right ears 300 respectively. In some sports scenarios, the presence of the neckband can prevent the earphone bodies 10 from falling and causing sports hazards. For example, during treadmill exercise, it can prevent the earphone bodies 10 from falling onto the treadmill belt. Compared to the headphone 100, the earphone 100 with a neckband is smaller and lighter, which can reduce the burden on the user and facilitate the user's use in daily life or during exercise.

[0034] 1 and 2 , the earphone body 10 may include a housing 11 , a sound unit 13 , and electronic components (such as a main control board and a battery, etc.).

[0035] A accommodating cavity 111a and an installation cavity 111b are formed inside the shell 11, and the sound-emitting unit 13 is arranged inside the accommodating cavity 111a. The installation cavity 111b is configured as a part for installing electronic components (such as a main control board). Specifically, the material of the shell 11 can be a plastic material, such as a hard plastic material, or a metal material, and this application does not limit this. Further, please continue to refer to Figure 2. The shell 11 is also formed with a sound outlet 1111a and a pressure relief port 111c, and the sound outlet 1111a and the pressure relief port 111c are both connected to the accommodating cavity 111a. Specifically, the number of pressure relief ports 111c can be two as shown in Figure 2, or it can be one (not shown), and this application does not limit this.

[0036] The shell 11 may include a first shell 111 and a second shell 113, and the first shell 111 is connected to the second shell 113. The interior of the first shell 111 is formed into a accommodating chamber 111a and an installation chamber 111b, so that the sound unit 13 can be accommodated through the accommodating chamber 111a, and some electronic components such as the main control board can be accommodated through the installation chamber 111b, and the battery can be accommodated inside the second shell 113. The materials of the first shell 111 and the second shell 113 can be the same or different. For example, the material of the first shell 111 that will come into contact with the ear canal can be plastic, and the material of the second shell 113 can be the same as that of the first shell 111, that is, the same plastic material, or it can be different from the material of the first shell 111, that is, metal material. This application does not limit this.

[0037] The second housing 113 is generally in the shape of a barbed hook, adapted to the shape of the human auricle. The second housing 113 can be worn directly around the outer periphery of the human auricle, allowing the earphone 100 to be worn in a hanging manner on the user's ear 300. Optionally, the first housing 111 and the second housing 113 can be two detachably connected parts, or the first housing 111 and the second housing 113 can be connected and formed together during processing, for example, by injection molding.

[0038] In order to facilitate manufacturing and assembly, the housing 11 generally includes a front shell and a rear shell. When the front shell and the rear shell are connected together, the two shells enclose a receiving cavity 111 a and an installation cavity 111 b.

[0039] The second shell 113 may include a hanging portion and a rear end portion. The hanging portion is connected to the first shell 111 and is used to be hung between the upper side of the ear 300 and the user's head when worn. The rear end portion is provided at one end of the hanging portion away from the first shell 111 and is used to be attached between the rear side of the ear 300 and the user's head when worn. The hanging portion and the rear end portion are both curved in an arc shape and form a hook shape. The hanging portion and the rear end portion are in contact with at least the front and rear sides of the user's ear 300 to achieve clamping and fixing with the user's ear 300, so that the first shell 111 connected to one end of the hanging portion can be relatively stably set on the front side of the ear 300. It can be understood that the hanging portion and the rear end portion have a certain degree of elasticity so that the user can pry the hanging portion and the rear end portion to match the first shell 111 with the ear 300.

[0040] 2 and 3 , the sound unit 13 may include a frame 131, a vibration system 15, a magnetic circuit system 17, and a copper ring 19. It is understood that the vibration system 15, the magnetic circuit system 17, and the copper ring 19 are all mounted on the frame 131, and the copper ring 19 is connected to the vibration system 15.

[0041] The frame 131 can be used to combine the vibration system 15, the magnetic circuit system 17, and the copper ring 19, and to secure the vibration system 15, the magnetic circuit system 17, and the copper ring 19 within the accommodating cavity 111a. The frame 131 can be constructed as an annular structure, and the material of the frame 131 can be a plastic material, such as ABS (Acrylonitrile Butadiene Styrene plastic). Of course, the frame 131 can also be a metal material, such as steel, and this application does not limit this.

[0042] Vibration system 15 may include a diaphragm 151 and a voice coil 153. Diaphragm 151 is connected to copper ring 19, indirectly connecting to frame 131. During operation, diaphragm 151 vibrates the air, allowing the air to conduct sound through sound outlet 1111a. Voice coil 153 is connected to diaphragm 151 and located within cavity 111a, spaced apart from magnetic circuit system 17.

[0043] Magnetic circuit system 17 may include a magnetic bowl 171, a magnet 175, and a washer 173. Magnet 175 and washer 173 are connected and mounted on magnetic bowl 171. Magnetic bowl 171 may be a generally annular bowl-shaped structure. Magnetic circuit system 17 provides the magnetic field required by voice coil 153. The principles of magnetic circuit system 17 and vibration system 15 are well known in the art and will not be elaborated upon here.

[0044] The main control board is electrically connected to the sound unit 13 to control the vibration of the diaphragm 151 of the sound unit 13 to produce sound. The battery is electrically connected to the main control board to provide power to the sound unit 13. During the actual operation of the earphone 100, in order to ensure the low-frequency performance of the earphone 100, a pressure relief channel 131a is formed inside the earphone 100 to allow the gas in the space inside the housing 11 to be quickly discharged to the outside of the housing 11 through the pressure relief channel 131a.

[0045] To this end, the present application further forms a pressure relief channel 131a within the earphone 100, and the base frame 131 forms a first air guide hole 131b and a second air guide hole 131c. The first air guide hole 131b is arranged toward the diaphragm 151, and the second air guide hole 131c is connected to the pressure relief channel 131a and the pressure relief port 111c. Specifically, in the embodiment of the present application, the formation of the pressure relief channel 131a can include but is not limited to the following two forms:

[0046] First, a pressure relief channel 131a is formed inside the basin frame 131. Second, the basin frame 131 and the outer wall of the magnetic bowl 171 of the magnetic circuit system 17 cooperate to form the pressure relief channel 131a. In this form, the annular wall of the basin frame 131 will be formed with an opening, and the outer wall of the magnetic bowl 171 will abut against the opening formed in the annular wall of the basin frame 131 and seal the opening to cooperate to form the pressure relief channel 131a.

[0047] In this way, when the diaphragm 151 vibrates in a direction close to the magnetic circuit system 17, under the push of the diaphragm 151, the air between the diaphragm 151 and the basin frame 131 can flow to the pressure relief channel 131a through the first air guide hole 131b, and then flow to the second air guide hole 131c connected to the pressure relief channel 131a, and finally be discharged to the outside of the shell 11 through the pressure relief port 111c of the shell 11.

[0048] If the space between the diaphragm 151 and the frame 131 is in a closed state, the interior of the housing 11 will be in a high-pressure state, causing the overall resonance frequency of the earphone 100 to be higher than the resonance frequency of the diaphragm 151, resulting in poor low-frequency performance of the earphone 100. However, based on the provision of the pressure relief vent 111c, the air in the space between the diaphragm 151 and the frame 131 can be discharged to the outside of the housing 11 through the pressure relief vent 111c, avoiding the high-pressure state inside the housing 11, allowing the overall resonance frequency of the earphone 100 to approach the resonance frequency of the diaphragm 151. That is, compared to the solution in which the space between the diaphragm 151 and the frame 131 is in a closed state, the resonance frequency of the earphone 100 of the present application can be reduced, thereby improving the low-frequency performance of the earphone 100.

[0049] Moreover, the design of the pressure relief channel 131a prevents the air between the diaphragm 151 and the basin frame 131 from immediately leaking out of the shell 11 through the pressure relief port 111c, so that when the sound unit 13 is working, each vibration of the diaphragm 151 will push as much air as possible inside the space between the diaphragm 151 and the basin frame 131 to vibrate, increasing the volume of the air and thus increasing the quality of the air.

[0050] According to the formula:

[0051] Among them, f0 represents the resonance frequency, Mm represents the vibration mass, and the design of the pressure relief channel 131a can increase Mm to a certain extent, thereby reducing the resonance frequency f0 and improving the low-frequency performance of the earphone 100 to a certain extent.

[0052] Moreover, compared with the prior art, in which the wall surface of the basin frame 131 and the cover surface of the rear cavity cover enclose a pressure relief channel 131a, the present application forms a pressure relief channel 131a inside the basin frame 131, or the basin frame 131 cooperates with the magnetic circuit system 17 to enclose a pressure relief channel 131a, and the pressure relief port 111c is independent of the installation cavity 111b, so there is no need to specially set up a rear cavity cover to specifically protect the main control board and other electronic components. Therefore, the present application can cancel the structure of the rear cavity cover. With the structure of the cavity cover, the wall thickness of the rear cavity cover itself can be avoided from occupying the volume of the pressure relief channel 131a. In addition, the shell 11 of the present application does not need to reserve an assembly gap for the rear cavity cover to be installed inside the accommodating cavity 111a. In this way, the volume of the pressure relief channel 131a can be effectively increased, so that when the diaphragm 151 vibrates, the volume of air pushed by the diaphragm 151 is larger, thereby increasing the mass of the air, effectively reducing the resonance frequency f0, and improving the low-frequency performance of the earphone 100 to a certain extent.

[0053] In one embodiment, based on the annular structure of the frame 131, the pressure relief channel 131a can be arranged around the magnetic circuit system 17. In this configuration, the pressure relief channel 131a can be arranged in an annular shape, so that after the air between the diaphragm 151 and the frame 131 flows into the pressure relief channel 131a, all the air can participate in the flow, and the mass of the entire air is greater, thereby further reducing the resonant frequency f0 of the earphone 100 and further improving the low-frequency performance of the earphone 100.

[0054] Furthermore, in order to increase the flow rate of air in the space between the diaphragm 151 and the basket 131 when it flows to the pressure relief channel 131a, the present application sets the number of first air guide holes 131b to at least two, wherein the at least two first air guide holes 131b can be evenly arranged along the circumference of the basket 131. In this way, the air in the space between the diaphragm 151 and the basket 131 can flow to the pressure relief channel 131a through at least two first air guide holes 131b, thereby ensuring the low-frequency performance of the earphone 100 while allowing the air to be quickly discharged to the outside of the shell 11 through the pressure relief channel 131a. Specifically, the number of first air guide holes 131b can be two, three, four, etc., and the present application does not limit this.

[0055] The specific matching forms of the second air guide hole 131c and the pressure relief port 111c may include but are not limited to the following three forms:

[0056] 1. The number of the second air guide holes 131c is consistent with the number of the pressure relief ports 111c, and both are at least two. The second air guide holes 131c can be evenly arranged along the circumference of the basin frame 131, and the pressure relief ports 111c and the second air guide holes 131c are connected in a one-to-one correspondence. In this way, the efficiency of air being discharged from the pressure relief channel 131a to the outside of the housing 11 can be improved by increasing the number of the second air guide holes 131c and the pressure relief ports 111c. Specifically, the number of the second air guide holes 131c and the pressure relief ports 111c can be two, three, or four, etc., and this application does not limit this.

[0057] Second, there is one second air guide hole 131c extending circumferentially of the basin frame 131, and there are at least two pressure relief ports 111c, both of which are connected to the second air guide hole 131c. The inner wall surface of the housing 11 blocks the portion of the second air guide hole 131c that is not connected to the at least two pressure relief ports 111c, so that air flows out through the unblocked portion of the second air guide hole 131c and is then discharged to the outside of the housing 11 through the pressure relief ports 111c. In this way, the efficiency of air being discharged from the pressure relief channel 131a to the outside of the housing 11 is improved by increasing the cross-sectional area of ​​the second air guide hole 131c and the number of pressure relief ports 111c.

[0058] Third, there is one pressure relief port 111c extending in a direction surrounding the frame 131, and there are at least two second air guide holes 131c, both of which are connected to the pressure relief port 111c. The outer annular wall 1315 of the frame 131 (as shown in FIG6 ) can block the portion of the pressure relief port 111c not connected to the second air guide holes 131c, so that air can pass through the second air guide holes 131c and then be discharged outside the housing 11 through the unblocked portion of the pressure relief port 111c. In this way, by increasing the cross-sectional area of ​​the pressure relief port 111c and the number of second air guide holes 131c, the efficiency of air discharged from the pressure relief channel 131a to the outside of the housing 11 is improved.

[0059] Please refer to Figures 2 and 3 in conjunction. In one structural form, the basin frame 131 may include a first ring body 1311 and a second ring body 1313 connected to each other. It is understood that the first ring body 1311 will be closer to the diaphragm 151 than the second ring body 1313, and the first ring body 1311 will be connected to the diaphragm 151. The first ring body 1311 and the second ring body 1313 are spaced apart in the vibration direction of the diaphragm 151 and enclose a pressure relief channel 131a. The first ring body 1311 is provided with a first air guide hole 131b, and in the vibration direction of the diaphragm 151, the outer sides of the first ring body 1311 and the second ring body 1313 jointly define a second air guide hole 131c.

[0060] During actual use, for example, when a user is exercising, sweat is likely to form. When the user's ear 300 is wearing the earphone 100, sweat may flow into the mounting cavity 111b or the magnetic circuit system 17 and the vibration system 15 through the pressure relief port 111c. Based on the above problem, the present application further provides for sealing the outer wall of the first ring body 1311 to the inner wall of the housing 11 and the outer wall of the magnetic bowl 171. The outer wall of the second ring body 1313 is sealed to the inner wall of the housing 11 and the outer wall of the magnetic bowl 171. This prevents external liquid or gas from flowing into the mounting cavity 111b through the gap between the second ring body 1313 and the magnetic bowl 171 or the gap between the second ring body 1313 and the housing 11, and from flowing into the magnetic circuit system 17 or the vibration system 15 through the gap between the first ring body 1311 and the magnetic bowl 171 or the gap between the first ring body 1311 and the housing 11.

[0061] Referring to Figures 3 and 6 , the first ring body 1311 further includes a first end surface 1311a facing the second ring body 1313, and the second ring body 1313 includes a second end surface 1313a facing the first ring body 1311. The frame 131 includes an outer annular wall 1315 and an inner annular wall 1317 spaced apart and arranged opposite each other in the radial direction of the frame 131. It is understood that the outer annular wall 1315 is disposed between and surrounds the first and second end surfaces 1311a, 1313a. Furthermore, the inner annular wall 1317 is disposed between and surrounds the first and second end surfaces 1311a, 1313a.

[0062] The outer annular wall 1315 is connected between the first end face 1311a and the second end face 1313a, and the second air guide hole 131c is defined in the outer annular wall 1315, which abuts the inner wall surface of the housing 11. With this arrangement, the second air guide hole 131c can be defined in the outer annular wall 1315. Furthermore, the connection of the outer annular wall 1315 between the first end face 1311a and the second end face 1313a improves the strength of the first end face 1311a and the second end face 1313a, enabling the first ring body 1311 and the second ring body 1313 to seal against the inner wall surface of the housing 11, further enhancing sealing performance. Of course, in other structural forms, the basin frame 131 may not include the outer ring wall 1315, that is, there is a gap between the first end face 1311a and the second end face 1313a on the side close to the shell 11, and the gap is formed as the second air guide hole 131c, which is not limited in this application.

[0063] Inner annular wall 1317 is connected between first end face 1311a and second end face 1313a and abuts the outer wall of magnetic bowl 171 of magnetic circuit system 17. With this arrangement, the connection of inner annular wall 1317 between first end face 1311a and second end face 1313a enhances the strength of first end face 1311a and second end face 1313a, enabling first ring body 1311 and second ring body 1313 to securely abut the outer surface of magnetic bowl 171, further enhancing the secure installation of bracket 131 on magnetic bowl 171. Of course, in other structural forms, bracket 131 may not include inner annular wall 1317, and this is not a limitation of this application.

[0064] Please refer to Figure 3. In some structural forms, the first ring body 1311 includes a first part 1318 and a second part 1319. The first part 1318 extends along the vibration direction of the diaphragm 151 and cooperates with the inner wall surface of the shell 11 to clamp the outer edge of the vibration system 15. The second part 1319 is connected to the first part 1318 and extends along the vibration direction perpendicular to the diaphragm 151. The second part 1319 is supported and connected between the magnetic circuit system 17 and the shell 11, and is provided with a first air guide hole 131b. The outer side of the second part 1319 also defines a second air guide hole 131c together with the outer side of the second ring body 1313. In this way, the two ends of the second part 1319 along its extension direction respectively abut the inner wall surface of the shell 11 and the outer side surface of the magnetic bowl 171 of the magnetic circuit system 17 to improve the setting stability of the second part 1319, and then the first part 1318 connected to the second part 1319 has a more stable clamping effect on the copper ring 19 of the vibration system 15.

[0065] The earphone body 10 further includes a first sealing member (not shown) and a second sealing member (not shown), and the inner wall surface of the housing 11 is formed with a first step 111e and a second step 111f (as shown in FIG. 4 ).

[0066] Referring to Figures 2 to 4 , the second portion 1319 of the first ring body 1311 overlaps the first step 111e, and the first seal is sealed and fixed at the overlap between the first ring body 1311 and the first step 111e. The second ring body 1313 overlaps the second step 111f, and the second seal is sealed and fixed at the overlap between the second ring body 1313 and the second step 111f. During the workshop assembly process, when the basin frame 131 is placed within the accommodating cavity 111a, the first ring body 1311 of the basin frame 131 can be overlapped on the first step 111e, and the second ring body 1313 overlapped on the second step 111f, to facilitate assembly. Furthermore, to improve the sealing between the housing 11 and the basin frame 131, the present application provides a first seal and a second seal. The first seal seals the overlap between the first ring body 1311 and the first step 111e, while the second seal seals the overlap between the second ring body 1313 and the second step 111f. This further ensures the sealing between the housing 11 and the basin frame 131.

[0067] Specifically, the first and second sealing members can be constructed of sealant. During assembly, sealant can be injected into the joints between the first ring body 1311 and the first step 111e, and between the second ring body 1313 and the second step 111f. This facilitates operation and provides a good sealing effect. Of course, the first and second sealing members can also be constructed of other forms, such as sealing strips, which are not limited in this application.

[0068] Referring to Figures 5 and 6 , a third step 1311b is formed at the end of the first ring body 1311 away from the second ring body 1313. Specifically, the end of the first portion 1318 away from the second portion 1319 forms the third step 1311b, and the copper ring 19 overlaps the third step 1311b. Thus, the provision of the third step 1311b allows the copper ring 19 to be mounted on the basin frame 131. The third step 1311b also provides a certain degree of positional restraint for the copper ring 19, further enhancing its installation stability.

[0069] During actual use, electronic components such as the main control board will generate a certain amount of heat, causing the air inside the installation cavity 111b to have a certain amount of heat. When this part of the hot air flows, especially when it flows to the gap of the shell 11 coated with glue, the gap will be expanded.

[0070] Therefore, referring to FIG. 2 , the specific formation of the mounting cavity 111 b can be formed by the housing 11, the second ring body 1313, and the magnetic bowl 171 of the magnetic circuit system 17 cooperating to form the mounting cavity 111 b. For example, the bottom of the magnetic bowl 171 is connected to the second ring body 1313, and the surface of the magnetic bowl 171 facing away from the diaphragm 151 is flush with the surface of the second ring body 1313 facing away from the diaphragm 151. In this way, the mounting cavity can be formed by the inner wall surface of the housing 11, the surface of the second ring body 1313 facing away from the diaphragm 151, and the surface of the second ring body 1313 facing away from the diaphragm 151. Furthermore, the mounting cavity 111 b can be separated from the pressure relief port 111 c, preventing liquid flowing into the mounting cavity 111 b through the pressure relief port 111 c from flowing into the mounting cavity 111 b through the pressure relief port 111 c and damaging electronic components such as the main control board within the mounting cavity 111 b, thereby extending the service life of the earphone 100.

[0071] Please continue to refer to Figure 2. The earphone body 10 also includes a third sealing member (not shown). The basin frame 131 is also provided with a third air guide hole 131d. The third air guide hole 131d connects the pressure relief channel 131a and the installation cavity 111b. The third sealing member is sealed at the third air guide hole 131d. In this way, the hot air can flow out from the inside of the installation cavity 111b and be discharged to the outside of the shell 11 through the third air guide hole 131d, the pressure relief channel 131a and the pressure relief port 111c in sequence. In order to prevent liquid from flowing into the interior of the installation cavity 111b through the third air guide hole 131d, the third air guide hole 131d is sealed by the third sealing member so that the third air guide hole 131d is only for gas to flow, and the third sealing member can block and seal the liquid.

[0072] The earphone body 10 also includes a fourth sealing member (not shown), and the shell 11 is also formed with a fourth air duct 111d, which connects the installation cavity 111b with the outside world. The fourth sealing member is sealed at the fourth air duct 111d. In this way, the air with heat can also flow out from the inside of the installation cavity 111b and be discharged directly to the outside of the shell 11 through the fourth air duct 111d. In order to prevent liquid from flowing into the inside of the installation cavity 111b through the fourth air duct 111d, the fourth air duct 111d is sealed by the fourth sealing member so that the fourth air duct 111d is only for gas to flow, and the fourth sealing member can block and seal the liquid.

[0073] Referring to Figures 1 and 2 , in one structural form, a sound outlet 1111 is provided on the first shell 111 of the housing 11, and a sound outlet 1111a is formed on the sound outlet 1111. The second shell 113 is configured so that when the earphone is worn on the user's ear 300, the first shell 111 covers the ear canal opening 310 of the ear 300 without extending into the ear canal opening 310. It should be noted that the term "covering" herein refers to covering in a broad sense. It is understood that the position of the first shell 111 corresponds to the position of the ear canal opening 310, and generally covers the ear canal opening 310 but does not extend into the ear canal opening 310.

[0074] In this way, when the user uses the earphones 100 (e.g., open-ear headphones), the user can hear the sound coming from the earphones 100 while also being able to hear external sounds. Furthermore, the earphones 100 are easier to wear than in-ear headphones, and the sound field is wider. Furthermore, with this arrangement, when the sound outlet 1111 covers the ear canal opening 310 of the user's ear 300, the distance between the sound outlet 1111a of the sound outlet 1111 and the ear canal opening 310 of the ear 300 can be reduced, thereby reducing sound leakage from the sound outlet 1111a of the sound outlet 1111, particularly reducing low-frequency noise cancellation, thereby improving the playback quality of the earphones 100.

[0075] In order to solve the problem of sound leakage in the earphone 100, the present application sets the pressure relief port 111c to be closer to the ear canal opening 310 of the user's ear 300 than the sound outlet 1111a. The vibration of the diaphragm 151 can make the space between the surface of the diaphragm 151 facing away from the magnetic circuit system 17 and the inner wall surface of the shell 11 and the air between the diaphragm 151 and the basin frame 131 vibrate in opposite phases. Therefore, the sounds emitted from the sound outlet 1111a and the pressure relief port 111c have opposite phases and can offset each other to a certain extent, thereby reducing sound leakage. This kind of offset is characterized by a strong near-end offset and a weak far-end offset, which is consistent with the design of reducing sound leakage.

[0076] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0077] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A headset, wherein: The invention comprises an earphone body, wherein the earphone body comprises: A housing having a housing cavity and a sound outlet and a pressure relief port communicated with the housing cavity; and A sound generating unit is arranged inside the accommodating cavity, comprising a basin frame and a vibration system and a magnetic circuit system installed on the basin frame, wherein the vibration system comprises a diaphragm connected to the basin frame; Among them, a pressure relief channel is formed inside the basin frame, or the basin frame and the magnetic circuit system cooperate to form a pressure relief channel, and the basin frame is also formed with a first air guide hole and a second air guide hole respectively connected to the pressure relief channel, the first air guide hole is arranged toward the diaphragm, and the second air guide hole is connected to the pressure relief port.

2. The headset according to claim 1, wherein: The basin frame is constructed as an annular structure, and the pressure relief channel is arranged around the magnetic circuit system.

3. The headset according to claim 2, wherein: The number of the first air guide holes is at least two; Wherein, the number of the second air guide holes is consistent with the number of the pressure relief ports, and both are at least two; Alternatively, the number of the second air guide hole is one and extends in the circumferential direction of the basin frame, and the number of the pressure relief holes is at least two and both are connected to the second air guide hole; Alternatively, the number of the pressure relief port is one and extends in a direction surrounding the basin frame, and the number of the second air guide holes is at least two and both are connected to the pressure relief port.

4. The headset according to claim 2, wherein: The basin frame comprises a first ring body and a second ring body connected to each other, the first ring body is connected to the diaphragm, the first ring body and the second ring body are arranged at intervals in the vibration direction of the diaphragm, and enclose the pressure relief channel; The first ring body is provided with the first air guide hole, and the outer sides of the first ring body and the second ring body jointly define the second air guide hole.

5. The headset according to claim 4, wherein: The magnetic circuit system includes a magnetic bowl connected to the basin frame, wherein the outer side of the first ring body and the outer side of the second ring body are respectively sealed and connected to the inner wall surface of the shell and the outer side wall of the magnetic bowl.

6. The headset according to claim 5, wherein: The magnetic circuit system also includes a connected magnet and a washer, and the magnet and the washer are both installed on the magnetic bowl.

7. The headset according to claim 5, wherein: The annular wall of the basin frame is formed with an opening, and the outer side wall of the magnetic bowl abuts against the opening and blocks the opening.

8. The headset according to claim 4, wherein: The first ring body includes a first end surface facing the second ring body, and the second ring body includes a second end surface facing the first ring body; Wherein, the basin frame further includes an outer annular wall, the outer annular wall is connected between the first end surface and the second end surface and abuts against the inner wall surface of the shell, and the outer annular wall is provided with the second air guide hole; And / or, the basin frame further includes an inner annular wall, wherein the inner annular wall is connected between the first end surface and the second end surface and abuts against an outer side wall of the magnetic circuit system.

9. The headset according to claim 4, wherein: The first ring body comprises: The first part extends along the vibration direction of the diaphragm and cooperates with the inner wall surface of the shell to clamp the outer edge of the vibration system; and The second part is connected to the first part and extends in a vibration direction perpendicular to the vibration direction of the diaphragm. The second part is supported and connected between the magnetic circuit system and the shell and is provided with the first air guide hole.

10. The headset according to claim 4, wherein: The inner wall surface of the shell is formed with a first step and a second step, the first ring body is overlapped on the first step, and the second ring body is overlapped on the second step.

11. The headset according to claim 10, wherein: The earphone body further comprises a first sealing member, wherein the first sealing member is sealingly fixed at the overlap between the first ring body and the first step; And / or, the earphone body further includes a second sealing member, and the second sealing member is sealingly fixed to the overlap between the second ring body and the second step.

12. The headset according to claim 4, wherein: The earphone body further comprises a copper ring, a third step is formed on one end of the first ring body away from the second ring body, the copper ring is overlapped on the third step and is connected to the diaphragm.

13. The headset according to claim 4, wherein: The housing, the second ring body and the magnetic circuit system also cooperate to form a mounting cavity, and the mounting cavity is configured to mount electronic components; The basin frame is further provided with a third air guide hole, and the third air guide hole is connected with the pressure relief channel and the installation cavity.

14. The headset according to claim 13, wherein: The earphone body also includes a third sealing member, and the third sealing member is sealingly arranged at the third air guide hole.

15. The headset according to claim 4, wherein: The housing, the second ring body and the magnetic circuit system also cooperate to form a mounting cavity, and the mounting cavity is configured to mount electronic components; The shell is further formed with a fourth air guide hole, and the fourth air guide hole connects the installation cavity with the outside.

16. The headset of claim 15, wherein: The earphone body also includes a fourth sealing member, and the fourth sealing member is sealed at the fourth air guide hole.

17. The headset of claim 1, wherein: The housing comprises a first housing and a second housing connected to each other, and the interior of the first housing forms the accommodating cavity; The first shell is provided with a sound outlet, and the sound outlet is formed on the sound outlet. The second shell is configured so that when the earphone is worn on the ear of the user, the first shell covers the ear canal opening of the ear and does not extend into the ear canal opening.

18. The headset of claim 17, wherein: The second housing comprises: a suspension portion connected to the first shell; and A rear end portion, arranged at an end of the hanging portion away from the first shell; Wherein, the suspension portion and the rear end portion are both curved in an arc shape.

19. The headset of claim 17, wherein: When the device is worn, the pressure relief port is closer to the ear canal opening of the user's ear than the sound outlet.

20. The headset of claim 1, wherein: The headset further comprises a neck hanging portion, and the neck hanging portion is used to be hung on the neck of the user; There are two earphone bodies, and the two earphone bodies are respectively connected to two ends of the neck hanging part along its extension direction.

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