Headset

Abstract

The embodiment of the utility model discloses a headphone, the headphone comprises an ear shell, a loudspeaker assembly and a switching structure, and a ventilation port is formed in the peripheral side of the ear shell; the loudspeaker assembly is arranged in the ear shell, the loudspeaker assembly and the ear shell are matched to form a front cavity and a rear cavity, and the front cavity is communicated with the ventilation opening; the switching structure is movably connected with the earphone shell and can move relative to the earphone shell so as to be switched between a first position and a second position; when the switching structure is located at the first position, the ventilation opening is opened, so that the front cavity can be communicated with the outside through the ventilation opening, and the ventilation requirement of a user is met; and when the switching structure is located at the second position, the ventilation opening is blocked, so that the front cavity cannot communicate with the outside through the ventilation opening, and the noise reduction requirement of a user is met.

Description

Technical Field

[0001] This application relates to the field of headphone technology, and more specifically, to a type of over-ear headphone. Background Technology

[0002] In the relevant technical field, headphones are generally divided into closed-back headphones and open-back headphones. Users may experience stuffiness when wearing closed-back headphones for a long time; while open-back headphones can solve the stuffiness problem, their active noise cancellation effect is worse than that of closed-back headphones. Utility Model Content

[0003] This application provides a headset that allows the front chamber to be sealed to meet the user's noise reduction needs by switching between a first position and a second position via a switching structure, or to allow the front chamber to be connected to the outside through a vent to meet the user's ventilation needs.

[0004] This application provides a headset including an ear shell, a speaker assembly, and a switching structure. A vent is formed on the periphery of the ear shell. The speaker assembly is disposed within the ear shell, and the speaker assembly cooperates with the ear shell to form a front chamber and a rear chamber, with the front chamber communicating with the vent. The switching structure is movably connected to the ear shell and can move relative to the ear shell to switch between a first position and a second position. When the switching structure is in the first position, the vent is opened, allowing the front chamber to communicate with the outside through the vent. When the switching structure is in the second position, the vent is blocked, preventing the front chamber from communicating with the outside through the vent.

[0005] The headphones based on this application have vents formed around the earcups. When the user needs to use active noise cancellation, the switching mechanism is switched to the second position, blocking the vents and preventing the front chamber from connecting to the outside, thus providing a good active noise cancellation effect. When the user does not need to use active noise cancellation, the switching mechanism is switched to the first position, opening the vents and allowing the front chamber to connect to the outside, facilitating air exchange between the front chamber and the outside environment. This reduces the probability of ear stuffiness and improves the user experience.

[0006] Furthermore, since the vents are located on the periphery of the ear canal, when the user does not need to use active noise cancellation and the vents are open, external sounds can directly enter the anterior chamber through the vents on the periphery and then enter the user's ear to be received by the user. This can shorten the propagation path of external sounds to the user's ear, reduce the attenuation during sound wave transmission, and improve the clarity of external sounds received by the user. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0008] Figure 1 This is a schematic diagram of the structure of a headset in one embodiment of this application;

[0009] Figure 2 This is a schematic diagram of the headphone unit in one embodiment of this application;

[0010] Figure 3 For along Figure 2 A schematic diagram of a cross-sectional structure of line AA in the middle;

[0011] Figure 4 For along Figure 2 Another schematic diagram of the cross-sectional structure of line AA in the middle;

[0012] Figure 5 For along Figure 2 Another cross-sectional view of the AA line;

[0013] Figure 6 For along Figure 2 Another cross-sectional diagram of line AA;

[0014] Figure 7 for Figure 3 Enlarged structural diagram at point B;

[0015] Figure 8 This is an exploded view of the headphone unit in one embodiment of this application;

[0016] Figure 9 for Figure 3 Enlarged structural diagram at point C;

[0017] Figure 10 This is a schematic diagram of the mounting bracket in one embodiment of this application;

[0018] Figure 11 For along Figure 2 Another cross-sectional diagram of line AA;

[0019] Figure 12 For along Figure 2 Another cross-sectional diagram of line AA;

[0020] Figure 13 For along Figure 2Another cross-sectional diagram of line AA;

[0021] Figure 14 This is an exploded view of the headphone unit in another embodiment of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Headphones; 11. Headband; 12. Earphone unit; 121. Sealing ring; 122. First magnetic component; 1221. First magnetic part; 1222. Second magnetic part; 123. Second magnetic component; 124. Third magnetic component; 125. Sealing component; 126. Support component; 13. Ear shell; 13A. Front chamber; 13B. Rear chamber; 13C. Vent; 13C1. Vent hole; 131. Front shell; 132. Rear shell; 132A. 132B, Second outer surface; 132C, Third outer surface; 132D, Limiting ring; 132E, First limiting groove; 132F, Second limiting groove; 1321, Shell body; 1322, Rear cover; 133, Connector; 14, Ear cover; 15, Speaker assembly; 151, Mounting bracket; 151A, Receiving cavity; 151A1, Front sound cavity; 151A2, Rear sound cavity; 151B, Sound outlet; 1511, Speaker mount; 1512, Speaker cover; 1513, Annular support; 1513A, Connecting port; 152, Horn; 16, Switching structure; 160, Movable sleeve; 161, Flexible cylinder; 161A, Fixing part; 161B, Movable part; 162, Outer cover; 162A, Guide hole; 1621, Abutting part; 1622, Sleeve part; 1622A, Movable cavity; 1623, Protruding ring; 17, Detection device; 181, Elastic element; 182, First limiting component; 1831, Glass bead; 1841. 19. Groove; 191. First sleeve; 192. Cylindrical part; 193. Bending part; 194. Second limiting component; 195. Third limiting component; 196. Third magnetic part; 197. Second sealing element; 198. Third sealing element; 199. Ball structure; 190. Ball support; 191. Ball body; 20. Second sleeve; 20A. Through hole; 21. First flange; 22. Second flange; 23. Outer cover; 23A. Mesh. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] Please refer to Figure 1 This application provides a headset 1, which includes a headband 11 and two earphone units 12.

[0025] The headband 11 typically uses a stretchable memory alloy frame, with a breathable silicone padding layer wrapped around the outer layer of the memory alloy frame. The length of the memory alloy frame is adjustable to fit different head sizes, thereby improving the user's wearing comfort, but it is not limited to this.

[0026] Two earphone units 12 are respectively connected to both ends of the headband 11, and the connection methods include fixed connection and rotatable connection. For example, the earphone units 12 are rotatably connected to the ends of the headband 11. Specifically, the earphone units 12 and the headband 11 can be connected by a universal joint, so that the earphone units 12 can rotate relative to the headband 11 to ensure that the auricle can fit the earphone units 12, thereby improving the user's listening experience.

[0027] Please refer to Figure 1-3 Specifically, the headphone unit 12 may include an ear shell 13, an ear cover 14, and a speaker assembly 15.

[0028] The ear shell 13 can be made of metal or plastic. For example, when the ear shell 13 is made of plastic, it can be integrally molded using injection molding to improve the overall structural strength of the ear shell 13, thereby reducing the probability of damage. This allows the ear shell 13 to better protect the speaker assembly 15, reducing the probability of damage and extending its service life. Consequently, the headphone 1 also has a longer service life. Furthermore, because the ear shell 13 is made of plastic, it is lightweight, resulting in a lighter overall weight of the headphone 1. This reduces the weight exerted on the user's head when wearing the headphone 1, reducing neck strain and improving the user's wearing experience.

[0029] The ear cup 14 is connected to the ear shell 13. Exemplarily, the connection between the ear cup 14 and the ear shell 13 can be at least one of screwing, snap-fitting, and adhesive bonding. In other embodiments, the ear cup 14 can also magnetically engage with the ear shell 13. In this embodiment, the connection method between the ear cup 14 and the ear shell 13 is not specifically limited. It is understood that the ear cup 14 can be a multi-layered composite structure. Exemplarily, the ear cup 14 can be a three-layered composite structure: an outer layer of antibacterial protein leather coated with a nano-titanium dioxide photocatalytic coating; a middle layer of high-density memory foam; and an inner layer of medical-grade breathable mesh fabric. In other embodiments, the layer structure of the ear cup 14 can also be other forms. In this embodiment, the layer structure of the ear cup 14 is not specifically limited.

[0030] The speaker assembly 15 is disposed inside the ear shell 13 and is used to emit sound outward.

[0031] The ear shell 13 in the related technology mainly exists in two types: open and closed. Because the open ear shell 13 is open, the headphone unit 12 cannot provide users with good active noise cancellation. Although the closed ear shell 13 enables the headphone unit 12 to provide users with good noise cancellation, the closed ear shell 13 causes poor air circulation in the user's ears. Wearing it for a long time can easily make the user feel stuffy and hot in the ears, causing discomfort and reducing the user experience.

[0032] Please refer to Figure 1-3 In this application's technical solution, the speaker assembly 15 and the ear shell 13 cooperate to form a front chamber 13A and a rear chamber 13B. A vent 13C is formed on the periphery of the ear shell 13, and the vent 13C communicates with the front chamber 13A. The headphone unit 12 also includes a switching structure 16, which is disposed within the ear shell 13 and movably connected to it. The switching structure 16 is movably connected to the ear shell 13 and can move relative to the ear shell 13 to switch between a first position and a second position. When the switching structure 16 is in the first position, the vent 13C is opened, allowing the front chamber 13A to communicate with the outside through the vent 13C (e.g., ...). Figure 4 (as shown); when the switching structure 16 is in the second position, the vent 13C is blocked so that the front chamber 13A cannot communicate with the outside through the vent 13C (as shown). Figure 3 (As shown).

[0033] Thus, when the user needs to use the active noise cancellation function, the switching structure 16 can be driven to switch to the second position, blocking the vent 13C and preventing the front chamber 13A from communicating with the outside world through the vent 13C, thereby providing the user with a good active noise cancellation effect. When the user does not need to use the active noise cancellation function, the switching structure 16 can be driven to switch to the first position, opening the vent 13C and allowing the front chamber 13A to communicate with the outside world through the vent 13C. This allows for air exchange between the front chamber 13A and the outside environment, preventing stuffiness in the user's ears and improving the user experience.

[0034] Furthermore, since the vent 13C is located on the periphery of the ear shell 13, when the user does not need to use the active noise cancellation function, external sounds can directly enter the front chamber 13A through the vent 13C and then enter the user's ear to be received by the user. This can shorten the propagation path of external sounds to the user's ear, reduce the attenuation during the sound wave transmission process, and improve the clarity of the user's acquisition of external sounds.

[0035] Please refer to Figure 1-3In one embodiment, the switching structure 16 is located on the inner side of the ear shell 13. In other embodiments, the switching structure 16 may also be located on the outer side of the ear shell 13; of course, the switching structure 16 may also be located on both the inner and outer sides of the ear shell 13.

[0036] Please refer to Figure 1-3 In one embodiment, the vent 13C extends circumferentially along the ear shell 13, which can increase the area of ​​the vent 13C. This allows the front chamber 13A to connect with the outside world through the larger vent 13C when the user does not need to use active noise cancellation. This improves the efficiency of gas exchange between the air in the front chamber 13A and the outside world, significantly reduces the probability of the user's ears becoming stuffy, and improves the user experience.

[0037] Please refer to Figure 1-3 Specifically, the switching structure 16 includes a movable sleeve 160, which is fitted onto the ear shell 13. The movable sleeve 160 can move along the front-back direction of the ear shell 13 to switch between a first position and a second position. In other embodiments, the movable sleeve 160 can also rotate relative to the ear shell 13 to switch between the first position and the second position. Of course, the movable connection of the movable sleeve 160 relative to the ear shell 13 can also have other forms. In the embodiments of this application, the specific form of the movable connection of the movable sleeve 160 relative to the ear shell 13 is not limited.

[0038] It is understandable that the sound output direction of the speaker assembly 15 is the forward direction, and the direction away from the sound output direction of the speaker assembly 15 is the rear direction. When the user wears the headphones 1, the direction of the ear shell 13 towards the user's ear is the forward direction, and the direction of the ear shell 13 away from the user's ear is the rear direction.

[0039] Please refer to Figure 1-3 In one embodiment, the ear shell 13 includes a front shell 131 and a rear shell 132. The front shell 131 is connected to the ear sleeve 14; the rear shell 132 is connected to the front shell 131 and is at least partially spaced from the front shell 131 to form a vent 13C. In other embodiments, the vent 13C may be provided separately in the front shell 131 or separately in the rear shell 132. Further details are omitted here.

[0040] It is understandable that when the vent 13C is solely located on the front shell 131 or solely on the rear shell 132, and only in a local area of ​​the front shell 131 or the rear shell 132, the switching structure 16 can be a movable plate that is slidably or rotatably connected to the front shell 131 or the rear shell 132. By sliding or rotating the movable plate, the area where the vent 13C is located is blocked, so that the movable plate is in the second position; when the vent 13C is opened by sliding or rotating the movable plate, the movable plate is in the first position. For example, the movable plate can be an arc-shaped structure.

[0041] Please refer to Figure 1-6 In one embodiment, the movable sleeve 160 includes a flexible sleeve 161 disposed inside the rear shell 132. One end of the flexible sleeve 161 is connected to the rear shell 132, and the other end of the flexible sleeve 161 is movable to switch between a first position and a second position.

[0042] Specifically, the flexible cylinder 161 includes a fixed part 161A and a movable part 161B connected to the fixed part 161A. The fixed part 161A is connected to the rear shell 132. When the movable part 161B is in the first position, the movable part 161B is spaced apart from the front shell 131 to open the vent 13C. When the movable part 161B is in the second position, the movable part 161B abuts against the front shell 131 to block the vent 13C.

[0043] It is understood that in another embodiment, the fixed part 161A can also be connected to the front shell 131. When the movable part 161B is in the first position, the movable part 161B is spaced apart from the rear shell 132 to open the vent 13C. When the movable part 161B is in the second position, the movable part 161B abuts against the rear shell 132 to block the vent 13C.

[0044] Please refer to Figure 1-6 In one embodiment, the movable sleeve 160 further includes an outer cover 162, which is sealed to the end of the movable part 161B away from the fixed part 161A. The outer cover 162 is disposed at the vent 13C and is movably connected to the rear shell 132. The outer cover 162 can move relative to the rear shell 132 to drive the movable part 161B to move, so that the movable part 161B can switch between a first position and a second position.

[0045] Specifically, the fixed part 161A is connected to the rear shell 132, and the outer cover 162 can drive the movable part 161B to move relative to the fixed part 161A towards or away from the rear shell 132, so that the movable part 161B can switch between a first position and a second position. Specifically, if the outer cover 162 moves relative to the fixed part 161A towards the rear shell 132 until the outer cover 162 abuts against the rear shell 132, the movable part 161B is in the first position, and the front chamber 13A is connected to the outside through the vent 13C; if the outer cover 162 moves relative to the fixed part 161A away from the rear shell 132 until the outer cover 162 abuts against the front shell 131, the movable part 161B is in the second position, and the front chamber 13A is in a sealed state.

[0046] Of course, in other embodiments, when the fixed part 161A is connected to the front shell 131, the outer cover 162 can move relative to the front shell 131, which can also drive the movable part 161B to move, so that the movable part 161B can switch between the first position and the second position. This will not be elaborated on here.

[0047] Specifically, in this embodiment, the fixed part 161A is sealed to the rear shell 132, and the movable part 161B is sealed to the outer cover 162. 。

[0048] When active noise cancellation is required, the outer cover 162 can drive the movable part 161B to move closer to the front shell 131, thereby creating a sealed environment in the front chamber 13A when the user wears the headphones 1 and the ear tips 14 are placed around the user's ears, blocking the intrusion of external sound waves, reducing sound energy loss during the noise cancellation process, and making the active noise cancellation system more accurate in canceling the target noise frequency band.

[0049] When no active noise cancellation is required, the outer cover 162 can drive the movable part 161B to move away from the front shell 131, so that the front chamber 13A can be connected to the outside through the vent 13C, which accelerates the air circulation in the front chamber 13A, reduces the accumulation of hot and humid gas in the front chamber 13A, ensures a dry experience for long-term wear, and improves user comfort.

[0050] For example, the flexible cylinder 161 can be a pleated flexible cylinder (see reference). Figure 3-5 For example, a corrugated flexible cylinder or a pleated flexible cylinder can flexibly expand and contract with the movement of the outer cover 162, which can reduce the probability of damage caused by excessive stretching or excessive contraction of the pleated flexible cylinder, so that the pleated flexible cylinder can have a longer service life.

[0051] Furthermore, due to the multiple pleats in the pleated flexible cylinder, stress can be evenly distributed during repeated sealing and opening actions, preventing excessive local wear and thus extending its service life. The multiple pleats can also absorb some low-frequency vibration energy, assisting in attenuating vibration noise transmitted to the front chamber 13A during active noise cancellation operation. This synergistic effect with the active noise cancellation system further enhances the user's noise reduction experience in noisy environments.

[0052] In other embodiments, the flexible cylinder 161 may also include a straight flexible cylinder (see [reference]). Figure 6The fixed portion 161A of the straight-tube flexible cylinder is connected to the rear shell 132, and the movable portion 161B of the straight-tube flexible cylinder is sealed to the outer cover 162. When active noise reduction is not required, the outer cover 162 can drive the movable portion 161B to fold towards the fixed portion 161A, so that the front chamber 13A can communicate with the outside through the vent 13C. When active noise reduction is required, the outer cover 162 can drive the movable portion 161B to fold away from the fixed portion 161A, so as to unfold the straight-tube flexible cylinder until the outer cover 162 abuts against the front shell 131, at which time the front chamber 13A is in a sealed state. Of course, the flexible cylinder 161 can also be in other forms. In this embodiment, the specific form of the flexible cylinder 161 is not limited.

[0053] It is understood that the outer cover 162 can be moved by a drive mechanism, which may include at least one of a linear motor, a lead screw, and an electric push rod. In other embodiments, the outer cover 162 can also be moved manually by the user, without specific limitations. Optionally, a corresponding handle groove or protrusion may be provided on the outer cover 162 to facilitate user operation of the outer cover 162.

[0054] It is understood that if the outer cover 162 is moved by the drive mechanism, the drive mechanism can be electrically connected to the controller. When the user controls the headphones 1 to turn on active noise cancellation, the controller can control the drive mechanism to move the outer cover 162 towards the earcup 14, thereby sealing the vent 13C using the flexible cylinder 161. When the user turns off active noise cancellation, the controller can control the drive mechanism to move upon receiving a preset signal, causing the outer cover 162 to move away from the earcup 14, thereby opening the vent 13C. The preset signals include signals that the user actively triggers the opening of the vent 13C, signals that active noise cancellation has not been turned on again within a preset time after it has been turned off, signals that the humidity in the front chamber 13A is higher than a preset humidity, and signals that the temperature in the front chamber 13A is higher than a preset temperature. In this embodiment, the specific form of the preset signals is not limited. The above method can achieve automatic control of opening or sealing the vent 13C, eliminating the need for repeated manual operation by the user and further improving the user experience.

[0055] Please refer to Figure 1-6 In one embodiment, the outer cover 162 includes an abutment portion 1621 and a sleeve portion 1622. The abutment portion 1621 is sealed to the end of the movable portion 161B away from the fixed portion 161A, and can abut against the front shell 131 or the rear shell 132. Specifically, when the abutment portion 1621 abuts against the front shell 131, the front chamber 13A is in a sealed state. When the abutment portion 1621 abuts against the rear shell 132, the front chamber 13A can communicate with the outside through the vent 13C.

[0056] The sleeve portion 1622 is connected to the abutment portion 1621. The sleeve portion 1622 is located outside the movable portion 161B and is spaced apart from the movable portion 161B to form a movable cavity 1622A. The rear shell 132 is at least partially located in the movable cavity 1622A to guide the movement of the outer cover 162 relative to the rear shell 132. When the abutment portion 1621 abuts against the front shell 131, the rear shell 132 is still partially located in the movable cavity 1622A. The sleeve portion 1622 can cover the vent 13C to prevent impurities from entering the movable sleeve 160 through the vent 13C, thereby reducing the probability of damage to the movable sleeve 160 and allowing the movable sleeve 160 to have a longer service life.

[0057] Please refer to Figure 3 , Figure 4 and Figure 7 Furthermore, to improve the sealing effect, a sealing ring 121 can be provided on the outer periphery of the rear shell 132. The outer periphery of the sealing ring 121 always abuts against the inner wall of the sleeve portion 1622, thereby further reducing the probability of impurities entering the movable sleeve 160 through the gap between the rear shell 132 and the sleeve portion 1622. The sealing ring 121 can be at least one of flexible materials such as felt rings, foam rings, and silicone rings. In other embodiments, the sealing ring 121 can also be in other forms. In the embodiments of this application, the specific form of the sealing ring 121 is not limited.

[0058] It is understandable that the sealing ring 121 can also be provided on the inner wall of the sleeve portion 1622 so that the inner wall of the sealing ring 121 abuts against the outer periphery of the rear shell 132. This can also reduce the probability of impurities entering the movable sleeve 160 through the gap between the rear shell 132 and the sleeve portion 1622. This will not be elaborated on further here.

[0059] Understandably, since the sealing ring 121 is made of a flexible material, when vibration is transmitted to the sealing ring 121, the sealing ring 121 can deform to absorb vibration energy and reduce the transmission of vibration energy through the sealing ring 121. This reduces the probability of resonance between the rear shell 132 and the outer cover 162, thereby reducing the generation of resonance noise and improving the user's noise reduction experience.

[0060] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 9In one embodiment, the headphones 1 further include a first limiting component 182, which limits the movable part 161B to a first position to ensure that the vent 13C remains open, thereby facilitating gas exchange between the front chamber 13A and the outside through the vent 13C; the first limiting component 182 also limits the movable part 161B to a second position to ensure that the vent 13C remains blocked, so that the front chamber 13A cannot communicate with the outside through the vent 13C, thereby providing the user with a good active noise cancellation effect.

[0061] Specifically, the first limiting component 182 may include a first magnetic 122, a second magnetic 123, and a third magnetic 124. The first magnetic 122 is disposed on the movable sleeve 160, specifically on the abutment portion 1621; the second magnetic 123 is disposed on the front shell 131; and the third magnetic 124 is disposed on the rear shell 132. The first magnetic 122 can magnetically engage with either the second magnetic 123 or the third magnetic 124. If the first magnetic 122 engages with the second magnetic 123, it is used to limit the movable portion 161B to the second position, at which time the vent 13C is blocked to facilitate the user's use of active noise cancellation. If the first magnetic member 122 and the third magnetic member 124 magnetically engage to limit the movable part 161B to the first position, the vent 13C is opened, thereby allowing the front chamber 13A to communicate with the outside through the vent 13C, so that the air in the front chamber 13A can exchange gases with the outside, thereby reducing the probability of the user's ears becoming stuffy and improving the user experience.

[0062] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 9 Specifically, the first magnetic 122 can be made of metal, and the second magnetic 123 and the third magnetic 124 can be made of magnets, so that the first magnetic 122 can be attracted by the second magnetic 123 or the third magnetic 124, so that the flexible cylinder 161 can switch between the first position and the second position.

[0063] Of course, the first magnetic attractor 122 can also be made of magnet, while the second magnetic attractor 123 and the third magnetic attractor 124 can be made of metal. In other embodiments, the first magnetic attractor 122, the second magnetic attractor 123, and the third magnetic attractor 124 can all be made of magnet, allowing the first magnetic attractor 122 to be attracted by the second magnetic attractor 123 or the third magnetic attractor 124, thereby enabling the flexible cylinder 161 to switch between the first position and the second position.

[0064] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 9 In one embodiment, the first magnetic member 122 may also include a separately configured first magnetic part 1221 and a second magnetic part 1222. The first magnetic part 1221 is disposed on the side of the abutment portion 1621 facing the front shell 131 and can be connected to the second magnetic member 123; the second magnetic part 1222 is disposed on the side of the abutment portion 1621 facing the rear shell 132 and can be connected to the third magnetic member 124. By using the separately configured first magnetic part 1221 and second magnetic part 1222 to clamp the abutment portion 1621, the structural strength of the abutment portion 1621 can be improved, and the first magnetic part 1221 can be brought closer to the second magnetic member 123, and the second magnetic part 1222 can be brought closer to the third magnetic member 124, thereby improving the stability of the magnetic attraction between the first magnetic part 1221 and the second magnetic member 123, and improving the stability of the magnetic attraction between the second magnetic part 1222 and the third magnetic member 124.

[0065] It is understood that the connection between the abutment portion 1621 and the front shell 131 or the rear shell 132 can be a snap-fit ​​connection. In other embodiments, the abutment portion 1621 and the front shell 131 or the rear shell 132 can also be connected by other methods that facilitate disassembly. In the embodiments of this application, there is no limitation on the connection method between the abutment portion 1621 and the front shell 131 or the rear shell 132.

[0066] It is understandable that the second magnetic clasp 123 can also be part of the front shell 131, and the third magnetic clasp 124 can also be part of the rear shell 132.

[0067] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 9 In one embodiment, a first sealing member 125 is provided on the side of the front shell 131 facing the rear shell 132, and a second magnetic member 123 is disposed between the first sealing member 125 and the front shell 131. When the first magnetic member 122 and the second magnetic member 123 are magnetically engaged, the abutment portion 1621 abuts against the first sealing member 125, causing the first sealing member 125 to deform, thereby filling the gap between the abutment portion 1621 and the front shell 131, thereby improving the airtightness between the abutment portion 1621 and the front shell 131, thus ensuring that the front chamber 13A is in a sealed state, thereby improving the effect of active noise reduction.

[0068] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 9 Furthermore, the abutment portion 1621 has a protruding ring 1623 on the side facing the front housing 131. The protruding ring 1623 protrudes towards the front housing 131. When the abutment portion 1621 abuts against the first seal 125, the protruding ring 1623 can further compress the first seal 125 when the first seal 125 is deformed, thereby further improving the airtightness between the abutment portion 1621 and the front housing 131, thereby ensuring that the front chamber 13A is in a sealed state, so as to improve the effect of active noise reduction.

[0069] Please refer to Figure 3-5 In one embodiment, the movable sleeve 160 is provided with a groove 1841. Specifically, the sleeve portion 1622 of the outer cover 162 is provided with a groove 1841. The first limiting component 182 includes an elastic element 181 and a glass bead 1831. The elastic element 181 is connected to the movable sleeve 160 and the rear shell 132, and is used to push the movable part 161B to move towards the front shell 131. Specifically, the elastic element 181 is connected to the abutting part 1621 and the rear shell 132, and is used to push the abutting part 1621 to move towards the front shell 131. A glass bead 1831 is disposed on the rear shell 132. When the movable part 161B is in the first position, the glass bead 1831 engages with the groove wall of the groove 1841, thereby keeping the vent 13C open and allowing the front chamber 13A to communicate with the outside through the vent 13C. When the movable part 161B is in the second position, the glass bead 1831 separates from the groove wall of the groove 1841, and the elastic element 181 drives the movable part 161B to seal against the front shell 131, so that the vent 13C remains blocked, facilitating the user's use of active noise cancellation.

[0070] When the front chamber 13A is connected to the outside through the vent 13C, the first limiting part 183 and the second limiting part 184 limit each other. At this time, the force applied by the elastic member 181 to the outer cover 162 cannot cause the glass bead 1831 to separate from the groove wall of the groove 1841, thereby allowing the vent 13C to remain open.

[0071] Understandably, the glass bead 1831 can be replaced with a protrusion, which can also engage with the groove wall of the groove 1841, thus keeping the vent 13C open. Further details will not be elaborated upon here.

[0072] It is understood that the elastic element 181 can be a spring, and in other embodiments, the elastic element 181 can also be an elastic sheet. In the embodiments of this application, the specific form of the elastic element 181 is not limited.

[0073] It is understood that in the embodiments of this application, the first limiting component 182 can be one of the above-mentioned glass bead structure, magnetic structure and elastic structure, or it can be a combination of at least two of the above-mentioned glass bead structure, magnetic structure and elastic structure, which will not be elaborated further here.

[0074] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 and Figure 10 In one embodiment, the speaker assembly 15 includes a mounting bracket 151 and a speaker unit 152. The mounting bracket 151 is disposed within the ear shell 13 and is at least connected to the rear shell 132. The mounting bracket 151 has a receiving cavity 151A and a sound outlet 151B, the sound outlet 151B connecting the receiving cavity 151A and the front chamber 13A. The speaker unit 152 is disposed within the receiving cavity 151A, dividing the receiving cavity 151A into a front sound cavity 151A1 and a rear sound cavity 151A2. The front sound cavity 151A1 communicates with the front chamber 13A through the sound outlet 151B. The connection method between the speaker unit 152 and the groove wall of the receiving cavity 151A includes, but is not limited to, at least one of screw connection, snap-fit ​​connection, and adhesive connection. In other embodiments, the connection method between the speaker unit 152 and the groove wall of the receiving cavity 151A can also be other forms. In the embodiments of this application, no specific limitation is made on the connection method between the speaker unit 152 and the groove wall of the receiving cavity 151A.

[0075] The mounting bracket 151 is connected to the rear shell 132 to form a rigid support frame, which can effectively transmit the vibration energy of the speaker driver 152 to the ear shell 13, reducing the deformation of the mounting bracket 151 itself, thereby reducing the mid-to-high frequency distortion of the speaker driver 152 and improving the user's listening experience. It is understood that the connection method between the mounting bracket 151 and the rear shell 132 includes, but is not limited to, at least one of screw connection, snap-fit ​​connection, and adhesive connection. In other embodiments, the mounting bracket 151 can be connected to the rear shell 132 in other ways. In this application embodiment, no specific limitation is made on the connection method between the mounting bracket 151 and the rear shell 132.

[0076] The design of the sound outlet 151B facing the front chamber 13A allows the sound waves emitted by the speaker unit 152 to be directly coupled to the front chamber 13A with the shortest path, reducing sound energy loss and improving the user's listening experience.

[0077] The fixing part 161A is disposed between the mounting bracket 151 and the rear shell 132, and is sealed to both the mounting bracket 151 and the rear shell 132. This reduces the number of parts used, lowers assembly costs, and improves assembly efficiency. Furthermore, it reduces the space occupied inside the ear shell 13, allowing more of the internal space to be used for acoustic optimization, thereby enhancing the user's listening experience.

[0078] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 as well as Figure 10 In one embodiment, the mounting bracket 151 includes a horn seat 1511, a horn cover 1512, and an annular bracket 1513. The horn seat 1511 is connected to the rear shell 132 and cooperates with the rear shell 132 to clamp and fix the fixing part 161A. The horn cover 1512 is connected to the horn seat 1511 and covers the horn seat 1511 to form a receiving cavity 151A. The horn cover 1512, the horn seat 1511, and the rear shell 132 cooperate to form a rear chamber 13B. The annular bracket 1513 is connected to the horn seat 1511 and forms a communication port 1513A between the bracket and the horn seat 1511. When the movable part 161B is in the first position, the movable part 161B is spaced apart from the front shell 131 to connect the connecting port 1513A and the vent 13C; when the movable part 161B is in the second position, the movable part 161B abuts against the front shell 131 to block the connecting port 1513A and the vent 13C.

[0079] The front chamber 13A includes a first cavity formed between the annular support 1513, the rear shell 132, and part of the speaker mount 1511, and a second cavity formed between the annular support 1513, the front shell 131, and another part of the speaker mount 1511. The first cavity and the second cavity are connected through a connecting port 1513A, so that when the front chamber 13A is in a sealed state, the cavity of the front chamber 13A is larger, thereby suppressing howling to a greater extent and improving the effect of active noise cancellation, so as to improve the user's listening experience.

[0080] Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 6 as well as Figure 8In this embodiment, the fixing part 161A of the flexible cylinder 161 can be clamped between the speaker base 1511 and the rear shell 132, thereby ensuring a sealed connection between any two of the speaker base 1511, the flexible cylinder 161, and the rear shell 132. This reduces the number of components used, lowers assembly costs, and improves assembly efficiency. Furthermore, it reduces the space occupied inside the ear shell 13, allowing more of the internal space to be used for acoustic optimization, thus improving the user's listening experience.

[0081] The speaker cover 1512 is connected to the speaker base 1511. The speaker cover 1512 and the speaker base 1511 are closed to form a receiving cavity 151A. The speaker cover 1512, the speaker base 1511 and the rear shell 132 cooperate to form a rear chamber 13B. The rear chamber 13B is used to place electronic components such as control circuit boards to facilitate heat dissipation of electronic components, prevent the electronic components from overheating, reduce the probability of damage to electronic components, and thus enable electronic components to have a longer service life, so that the headphones 1 can have a longer service life.

[0082] Understandably, the speaker cover 153 has a pressure relief hole that connects the rear chamber 13B and the rear sound chamber 151A2. The pressure relief hole facilitates the entry and exit of air into the rear sound chamber 151A2, balances the internal and external air pressure of the rear sound chamber 151A2, and makes the diaphragm of the speaker driver 152 vibrate smoothly, thereby improving the accuracy and sound quality of the sound.

[0083] For example, the connection between the annular bracket 1513 and the horn seat 1511 includes at least one of screwing and adhesive bonding. In other embodiments, the annular bracket 1513 can also be integrally formed with the horn seat 1511 to improve the structural strength of the connection between the horn seat 1511 and the annular bracket 1513, thereby improving the structural strength of the connection between the front shell 131 and the rear shell 132. In this application embodiment, there is no specific limitation on the connection method between the horn seat 1511 and the annular bracket 1513. For example, the connection method between the annular bracket 1513 and the front shell 131 includes, but is not limited to, at least one of screwing, snap-fitting, and adhesive bonding. In other embodiments, the connection method between the annular bracket 1513 and the front shell 131 can also be other forms. In this application embodiment, there is no specific limitation on the connection method between the annular bracket 1513 and the front shell 131.

[0084] Please refer to Figure 1 , Figure 3 , Figure 4 as well as Figure 9In one embodiment, the headset 1 further includes a support member 126, which is connected to the front shell 131 and the rear shell 132 to support the rear shell 132 and improve the connection stability between the front shell 131 and the rear shell 132. The connection method between the support member 126 and the front shell 131 and the rear shell 132 includes at least one of screwing, gluing, and snap-fitting. In other embodiments, the connection method between the support member 126 and the front shell 131 and the rear shell 132 can also be other forms. In the embodiments of this application, there is no limitation on the connection method between the support member 126 and the front shell 131 and the rear shell 132.

[0085] Understandably, the headphones 1 may include multiple support members 126, which are evenly spaced to ensure uniform force distribution between the front shell 131 and the rear shell 132. The number of support members 126 may be 3, 4, 6, 8, etc.

[0086] Please refer to Figure 1 , Figure 3 , Figure 4 as well as Figure 9 In one embodiment, the outer cover 162 has a guide hole 162A, and the support member 126 passes through the guide hole 162A so that the outer cover 162 can move along the support member 126. This ensures that the vent 13C is sealed when the outer cover 162 moves to abut against the front cover, thereby ensuring that the front cavity is sealed and thus achieving a better active noise reduction effect.

[0087] It is understandable that both the first magnetic suction part 1221 and the second magnetic suction part 1222 are provided with clearance holes corresponding to the guide hole 162A, so as to facilitate the passage of the support member 126.

[0088] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12 The movable sleeve 160 includes a first sleeve 19, which is sleeved on the rear shell 132, allowing the first sleeve 19 to move relative to the rear shell 132 and switch between a first position and a second position. When the first sleeve 19 is in the first position, it is spaced apart from the front shell 131, the vent 13C is opened, and the front chamber 13A communicates with the outside through the vent 13C (see reference). Figure 11 When the first sleeve 19 is in the second position, the first sleeve 19 abuts against the front shell 131, and the vent 13C is blocked, so that the front chamber 13A cannot communicate with the outside through the vent 13C (please refer to...). Figure 10 ).

[0089] At this point, the front chamber 13A can be connected to the outside through the vent 13C by simply using the first sleeve 19 to move relative to the rear shell 132, so that the front chamber 13A is in a sealed state. This simplifies the movable sleeve 160, thereby reducing the number of parts used and lowering design and manufacturing costs. It also reduces the overall weight of the headphones 1 and improves the user's wearing experience.

[0090] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12 In one embodiment, the first sleeve 19 includes a sleeve body 191 and a bent portion 192. The sleeve body 191 is fitted over the rear shell 132. The bent portion 192 is connected to one end of the sleeve body 191 and bends towards the rear shell 132, and the bent portion 192 is sealed to the rear shell. The headset 1 also includes a second limiting component 193 and a third limiting component 194. When the first sleeve 19 is in a first position, the sleeve body 191 is spaced apart from the front shell 131, and the second limiting component 193 limits the first sleeve 19 to the first position. When the first sleeve 19 is in a second position, the sleeve body 191 is sealed to the front shell 131, the bent portion 192 is sealed to the rear shell 132, and the third limiting component 194 limits the first sleeve 19 to the second position.

[0091] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12 Specifically, the rear shell 132 has a first outer surface 132A, a second outer surface 132B, and a third outer surface 132C. The second outer surface 132B and the third outer surface 132C are both set at an angle to the first outer surface 132A, and the second outer surface 132B and the third outer surface 132C are respectively set at both ends of the first outer surface 132A. The extension directions of the second outer surface 132B and the third outer surface 132C are opposite.

[0092] The second limiting component 193 is disposed between the sleeve body 191 and the first outer surface 132A; the third limiting component 194 is disposed between the sleeve body 191 and the first outer surface 132A, or between the bent portion 192 and the third outer surface 132C; the second limiting component 193 is used to limit the first sleeve 19 to a first position, the sleeve body 191 and the second outer surface 132B are spaced apart, the bent portion 192 and the third outer surface 132C are spaced apart, so that the vent 13C is opened, and the front chamber 13A can maintain communication with the outside through the vent 13C; the third limiting component 194 is used to limit the first sleeve 19 to a second position, the sleeve body 191 and the second outer surface 132B are sealed and abutted, the bent portion 192 and the third outer surface 132C are sealed and abutted, and the vent 13C is blocked, so that the front chamber 13A can be kept in a sealed state.

[0093] Please refer to Figure 1 , Figure 2 , Figure 11 and Figure 12 Specifically, the second limiting component 193 includes a glass bead 1831 or a protrusion, which is disposed on one of the sleeve body 191 and the first outer surface 132A; the other of the sleeve body 191 and the first outer surface 132A has a groove 1841, and the glass bead 1831 or the protrusion can engage with the groove wall of the groove 1841 so that the first sleeve 19 can be held in the first position, thereby allowing the front chamber 13A to remain in communication with the outside through the vent 13C.

[0094] In other embodiments, the second limiting component 193 can also be a magnetic structure, capable of magnetically engaging with another magnetic structure, thus allowing the first sleeve 19 to remain in the first position. Of course, the second limiting component 193 can also take other forms. In this application embodiment, the specific form of the second limiting component 193 is not limited.

[0095] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12 In one embodiment, the third limiting component 194 includes a third magnetic attraction part 1941 and a fourth magnetic attraction part 1942. The third magnetic attraction part 1941 is disposed on the bending part 192; the fourth magnetic attraction part 1942 is disposed on the third outer surface 132C. When the first sleeve 19 moves to the second position, the third magnetic attraction part 1941 and the fourth magnetic attraction part 1942 magnetically engage, and the vent 13C is blocked so that the front chamber 13A can be kept in a sealed state.

[0096] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12In one embodiment, the headset 1 further includes a second sealing member 195 and a third sealing member 196. The second sealing member 195 is disposed on the side of the bent portion 192 facing the rear shell 132, and the third magnetic part 1941 is disposed between the second sealing member 195 and the bent portion 192; or, it is disposed on the rear shell 132, and the fourth magnetic part 1942 is disposed between the second sealing member 195 and the rear shell 132; the third sealing member 196 is disposed on the front shell 131 and can abut against the end of the sleeve body 191 away from the bent portion 192 to seal and connect with the sleeve body 191.

[0097] Specifically, the second sealing member 195 is disposed on the side of the bent portion 192 facing the third outer surface 132C, and the third magnetic part 1941 is disposed between the second sealing member 195 and the bent portion 192; and the fourth magnetic part 1942 is disposed between the second sealing member 195 and the third outer surface 132C; and the third sealing member 196 is disposed on the second outer surface 132B.

[0098] When the first sleeve 19 moves to the second position (please refer to...) Figure 11 The second seal 195 enables a sealed connection between the bent portion 192 and the third outer surface 132C, and the third seal 196 enables a sealed connection between the sleeve body 191 and the second outer surface 132B, thereby keeping the front chamber 13A in a sealed state.

[0099] It is understandable that the second seal 195 can also be provided on the third outer surface 132C, which can also make a sealing connection between the bent portion 192 and the third outer surface 132C. Further details will not be elaborated here.

[0100] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12 In one embodiment, in order to ensure smooth movement between the sleeve body 191 and the first outer surface 132A, the headset 1 further includes a ball bearing structure 197. The ball bearing structure 197 is disposed on one of the sleeve body 191 and the first outer surface 132A and is in rolling connection with the other of the sleeve body 191 and the first outer surface 132A, thereby reducing the sliding friction between the sleeve body 191 and the first outer surface 132A, so as to ensure smooth movement between the sleeve body 191 and the first outer surface 132A; the ball bearing structure 197 can also be used to support the sleeve body 191, thereby improving the movement stability of the sleeve body 191 relative to the first outer surface 132A.

[0101] Specifically, the ball structure 197 includes a ball support 1971 and at least two ball bodies 1972. The ball support 1971 is connected to the rear shell 132. Each ball body 1972 is movably connected to the ball support 1971 and exposed on the first outer surface 132A. It is also in a rolling connection with the sleeve body 191 to reduce the sliding friction between the sleeve body 191 and the first outer surface 132A, so that the movement of the sleeve body 191 relative to the first outer surface 132A is smooth. The ball bodies 1972 can also support the sleeve body 191 to improve the movement stability of the sleeve body 191 relative to the first outer surface 132A.

[0102] It is understandable that the number of ball bodies 1972 included in the ball structure 197 can be 2, 3, 4, 6, etc.

[0103] Please refer to Figure 1 , Figure 2 , Figure 11 as well as Figure 12 In one embodiment, a limiting ring 132D is provided on the circumferential side of the rear shell 132 away from the front shell 131; the first sleeve 19 is movably connected to the rear shell 132, and the limiting ring 132D is used to abut against the side of the bent portion 192 away from the sleeve body 191 to restrict the first sleeve 19 from detaching from the front shell 131, thereby reducing the probability of the first sleeve 19 being lost.

[0104] Please refer to Figure 1 , Figure 2 , Figure 13 as well as Figure 14 In one embodiment, the ear shell 13 includes a shell body 1321 and a rear cover 1322. The rear cover 1322 is connected to the shell body 1321. A vent 13C is provided on the shell body 1321 so that the vent 13C can communicate with the front chamber 13A, thereby facilitating the communication between the front chamber 13A and the outside through the vent 13C.

[0105] Please refer to Figure 1 , Figure 2 , Figure 13 as well as Figure 14 In one embodiment, the vent 13C includes a plurality of vent holes 13C1 disposed on the shell body 1321. The plurality of vent holes 13C1 are arranged at intervals along the circumference of the shell body 1321. When the front chamber 13A is connected to the outside through the vent 13C, the efficiency of gas exchange between the air in the front chamber 13A and the outside is improved, the probability of the user's ears becoming stuffy is greatly reduced, and the user's experience is improved.

[0106] Please refer to Figure 1 , Figure 2 , Figure 13 as well as Figure 14In one embodiment, the movable sleeve 160 includes a second sleeve 20, which has a plurality of through holes 20A. The second sleeve 20 is rotatably fitted onto the outer shell body 1321 so that the second sleeve 20 can switch between a first position and a second position.

[0107] Specifically, when the second sleeve 20 is in the first position, the through hole 20A is connected to the vent hole 13C1, and the front chamber 13A is connected to the outside through the vent hole 13C1 and the through hole 20A; when the second sleeve 20 is in the second position, the through hole 20A is not connected to the vent hole 13C1, and the vent hole 13C1 is blocked, so that the front chamber 13A cannot be connected to the outside through the vent hole 13C1.

[0108] Please refer to Figure 1 , Figure 2 , Figure 13 as well as Figure 14 In one embodiment, the second sleeve 20 is rotatably sleeved on the outside of the shell body 1321 and is limited to the side of the rear cover 1322 facing the shell body 1321. In this way, the user can switch between the front chamber 13A being in a sealed state and the front chamber 13A being connected to the outside through the vent 13C and the through hole 20A by rotating the sleeve, which is convenient and quick.

[0109] Please refer to Figure 1 , Figure 2 , Figure 13 as well as Figure 14 In one embodiment, the rear cover 1322 and the shell body 1321 surround to form a first limiting groove 132E; the shell body 1321 has a second limiting groove 132F;

[0110] The second sleeve 20 has a first flange 21 and a second flange 22 at its two ends. The first flange 21 is rotatably mounted in the first limiting groove 132E, and the second flange 22 is rotatably mounted in the second limiting groove 132F. This prevents the second sleeve 20 from moving axially, thereby reducing the probability of the second sleeve 20 detaching from the shell body 1321.

[0111] It is understandable that a limiting component can also be provided between the shell body 1321 and the second sleeve 20, so as to limit the second sleeve 20 to the first position or the second position.

[0112] The limiting component includes a glass bead 1831 or a protrusion, which is disposed on the shell body 1321; the inner surface of the second sleeve 20 has a groove 1841, and the glass bead 1831 or the protrusion can engage with the groove wall of the groove 1841 so that the second sleeve 20 can be limited to a first position or a second position.

[0113] In other embodiments, the limiting component can also be magnetic, as described in detail in the foregoing solutions, and will not be repeated here. Of course, the limiting component can also take other forms, and the specific form of the limiting component is not limited in the embodiments of this application.

[0114] Please refer to Figure 1 , Figure 2 , Figure 13 as well as Figure 14 In one embodiment, the movable sleeve 160 further includes an outer cover 23, which covers the outer periphery of the second sleeve 20. The outer cover 23 has multiple mesh holes 23A, the diameter of which is smaller than the diameter of the through holes 20A. This allows the mesh cover 23 to block external impurities from entering the movable sleeve 160 through the through holes 20A, thereby reducing the probability of damage to the movable sleeve 160 and extending its service life. Furthermore, each through hole 20A communicates with at least one mesh hole 23A, ensuring that when the through hole 20A communicates with the vent hole 13C1, the front chamber 13A can communicate with the outside through the vent hole 13C1, the through hole 20A, and the mesh holes 23A, thus reducing the impact of the outer cover 23 on the airflow between the front chamber 13A and the outside.

[0115] Please refer to Figure 1 , Figure 2 as well as Figure 11-13 In one embodiment, the speaker assembly 15 includes a mounting bracket 151 and a speaker unit 152. The mounting bracket 151 includes a speaker base 1511 and a speaker cover 1512. The speaker base 1511 is connected to the ear shell 13 and has a sound outlet 151B. The speaker cover 1512 is connected to the speaker base 1511 and covers the speaker base 1511 to form a receiving cavity 151A. The speaker unit 152 is disposed in the receiving cavity 151A and divides the receiving cavity 151A into a front sound cavity 151A1 and a rear sound cavity 151A2. The front sound cavity 151A1 communicates with the front chamber 13A through the sound outlet 151B.

[0116] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 11 and Figure 12 In one embodiment, the headphones 1 further includes a detection device 17 and a control board. The detection device 17 is connected to the ear shell 13 and is used to detect the position of the movable sleeve 160. The control board is disposed inside the ear shell 13 and is electrically connected to the detection device 17. The control board is used to control the headphones 1 to turn on the transparency mode when the detection device 17 detects that the movable sleeve 160 is in a first position, and to control the headphones 1 to turn on the noise cancellation mode when the detection device 17 detects that the movable sleeve 160 is in a second position.

[0117] It is understood that the detection device 17 may include a Hall element, and a magnet corresponding to the Hall element is disposed on the movable sleeve 160. In other embodiments, the detection device 17 may also include a photoelectric sensor, and a light-shielding plate corresponding to the photoelectric sensor is disposed on the movable sleeve 160. In the embodiments of this application, the specific form of the detection device 17 is not limited.

[0118] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0119] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0120] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0121] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0122] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A type of over-ear headphone, characterized in that, include: The ear shell has vents formed on its periphery; A speaker assembly is disposed inside the ear shell, and the speaker assembly cooperates with the ear shell to form a front chamber and a rear chamber, and the front chamber is connected to the vent. as well as A switching structure is movably connected to the ear shell and is movable relative to the ear shell to switch between a first position and a second position; When the switching structure is in the first position, the vent is opened so that the front chamber can communicate with the outside through the vent; when the switching structure is in the second position, the vent is blocked so that the front chamber cannot communicate with the outside through the vent.

2. The headphones as described in claim 1, characterized in that, The switching structure includes a movable sleeve that is fitted onto the ear shell and can move along the front-back direction of the ear shell to switch between the first position and the second position. or, The movable sleeve rotates relative to the ear shell to switch between the first position and the second position.

3. The headphones as described in claim 2, characterized in that, The ear shell includes a front shell and a rear shell, with the rear shell spaced apart from the front shell to form the vent.

4. The headphones as described in claim 3, characterized in that, The movable sleeve includes a flexible cylinder disposed inside the rear shell. One end of the flexible cylinder is connected to the rear shell, and the other end of the flexible cylinder is movable to switch between the first position and the second position.

5. The headphones as described in claim 4, characterized in that, The flexible cylinder includes a fixed part and a movable part connected to the fixed part. The fixed part is connected to the rear shell, and the movable part is movable relative to the fixed part to switch between a first position and a second position.

6. The headphones as described in claim 5, characterized in that, The movable sleeve also includes an outer cover, which is sealed to the end of the movable part away from the fixed part. The outer cover is disposed at the vent and is movably connected to the rear shell. The outer cover can move relative to the rear shell to drive the movable part to move, so that the movable part can switch between the first position and the second position.

7. The headphones as described in claim 6, characterized in that, The outer cover includes: The abutting portion is sealed to the end of the movable portion away from the fixed portion and is capable of abutting against the front shell; and A sleeve portion is connected to the abutting portion. The sleeve portion is located outside the movable portion and forms a movable cavity with a gap between it and the movable portion. The rear shell is at least partially located within the movable cavity.

8. The headphones as described in claim 7, characterized in that, Also includes: A sealing ring is disposed on the outer peripheral side of the rear shell, and the outer peripheral side of the sealing ring abuts against the inner wall of the sleeve portion; And / or, disposed on the inner wall of the sleeve portion, the inner wall of the sealing ring abuts against the outer peripheral side of the rear shell.

9. The headphones as described in claim 6, characterized in that, Also includes: A first limiting component is used to limit the movable part to the first position or to limit the movable part to the second position.

10. The headphones as described in claim 9, characterized in that, The first limiting component includes: A first magnetic suction element is disposed on the movable sleeve; A second magnetic accommodator is disposed on the front housing; and A third magnetic attraction element is disposed on the rear shell; Wherein, the first magnetic suction member and the second magnetic suction member magnetically engage to limit the movable part to the second position, or the first magnetic suction member and the third magnetic suction member magnetically engage to limit the movable part to the first position.

11. The headphones as described in claim 10, characterized in that, The outer cover is provided with a groove, and the first limiting component includes: Elastic element, connected to the outer cover and the rear shell; and Glass beads are disposed in the rear shell; When the movable part is in the first position, the glass bead engages with the groove to limit the position of both the outer cover and the rear shell. When the movable part is in the second position, the glass bead separates from the groove, and the elastic element drives the movable part to seal against the front shell.

12. The headphones as described in claim 5, characterized in that, The speaker assembly includes: A mounting bracket is disposed within the ear shell and is at least connected to the rear shell; the mounting bracket has a receiving cavity and a sound outlet; and A speaker unit is disposed within the receiving cavity, which is divided into a front sound cavity and a rear sound cavity. The front sound cavity communicates with the front chamber through the sound outlet. ； The fixing part is disposed between the mounting bracket and the rear shell, and is sealed to the mounting bracket and the rear shell.

13. The headphones as described in claim 12, characterized in that, The mounting bracket includes: The speaker mount is connected to the rear shell and cooperates with the rear shell to clamp the fixing part; A horn cover, connected to the horn seat, and together with the horn seat cover, forms the receiving cavity; the horn cover, the horn seat, and the rear shell cooperate to form the rear chamber; and An annular bracket is connected to the horn seat and forms a communication port with the horn seat; When the movable part is in the first position, the movable part is spaced apart from the front shell to connect the communication port and the vent; when the movable part is in the second position, the movable part abuts against the front shell to block the communication port and the vent.

14. The headphones as described in claim 3, characterized in that, The movable sleeve includes a first sleeve, which is sleeved on the outside of the rear shell. The first sleeve is movable relative to the rear shell, so that the first sleeve can switch between the first position and the second position. Specifically, when the first sleeve is in the first position, the first sleeve is spaced apart from the front shell, and the vent is opened so that the front chamber can communicate with the outside through the vent; when the first sleeve is in the second position, the first sleeve abuts against the front shell, and the vent is blocked so that the front chamber cannot communicate with the outside through the vent.

15. The headphones as described in claim 14, characterized in that, The first sleeve includes: The main body is fitted over the rear shell; and The bending portion is connected to one end of the sleeve body and bends toward the rear shell, and the bending portion is sealed to the rear shell; When the first sleeve is in the first position, the sleeve body is spaced apart from the front shell; when the first sleeve is in the second position, the sleeve body is in sealed contact with the front shell.

16. The headphones as described in claim 15, characterized in that, The headphones also include: A second limiting component is used to limit the first sleeve to the first position; and The third limiting component is used to limit the first sleeve to the second position.

17. The headphones as described in claim 16, characterized in that, The second limiting component includes a glass bead or a protrusion, which is disposed on one of the sleeve body and the rear shell; the other of the sleeve body and the rear shell has a groove, and the glass bead or the protrusion can engage with the groove.

18. The headphones as described in claim 16, characterized in that, The third limiting component includes: A third magnetic attraction part is disposed on the bent portion; and A fourth magnetic attraction part is provided on the rear shell; when the first sleeve moves to the second position, the third magnetic attraction part and the fourth magnetic attraction part magnetically engage.

19. The headphones as described in claim 2, characterized in that, The ear shell includes a shell body and a back cover, the back cover being connected to the shell body, and the vent being located on the shell body.

20. The headphones as described in claim 19, characterized in that, The vent includes a plurality of vent holes, which are arranged at intervals along the circumference of the shell body.

21. The headphones as described in claim 20, characterized in that, The movable sleeve includes a second sleeve with multiple through holes. The second sleeve is rotatably fitted onto the shell body so that the second sleeve can switch between the first position and the second position. When the second sleeve is in the first position, the through hole is connected to the vent hole, and the front chamber is connected to the outside through the vent hole and the through hole; when the second sleeve is in the second position, the through hole is not connected to the vent hole, and the vent hole is blocked, so that the front chamber cannot be connected to the outside through the vent hole.

22. The headphones as described in claim 21, characterized in that, The rear cover and the shell body form a first limiting groove; the shell body is provided with a second limiting groove; the two ends of the second sleeve are respectively provided with a first flange and a second flange, the first flange is rotatably installed in the first limiting groove, and the second flange is rotatably installed in the second limiting groove.

23. The headphones as described in claim 21, characterized in that, The movable sleeve also includes: An outer cover is provided on the outer periphery of the second sleeve. The outer cover has multiple mesh holes, the diameter of which is smaller than the diameter of the through hole.

24. The headphones as claimed in any one of claims 14 to 23, characterized in that, The speaker assembly includes: The mounting bracket includes a speaker mount and a speaker cover. The speaker mount is connected to the earpiece and has a sound outlet. The speaker cover is connected to the speaker mount and, together with the speaker mount, forms a receiving cavity. A speaker unit is disposed within the receiving cavity, which is divided into a front sound cavity and a rear sound cavity. The front sound cavity is connected to the front chamber through the sound outlet.

25. The headphones as described in claim 1, characterized in that, Also includes: A detection device for detecting the position of the switching structure; A control board, electrically connected to the detection device, is used to control the headphones to activate transparency mode when the detection device detects that the switching structure is in the first position, and to control the headphones to activate noise cancellation mode when the detection device detects that the switching structure is in the second position.

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