Mode-switchable head-mounted open type earphone

Abstract

The invention provides a form-switchable head-mounted open type earphone. The form-switchable head-mounted open type earphone comprises a head beam and two earphone bodies, the two earphone bodies are installed on the two sides of the head beam respectively, at least one earphone body is provided with a rotary knob, a blocking cover and a first air hole, and the first air hole penetrates through the two sides of the earphone body; the blocking cover and the knob are both rotatably installed on the earphone body, the blocking cover is connected with the knob, the blocking cover is driven by the knob to rotate so that the blocking cover can shield or open the first air hole, when the first air hole is opened, the earphone is in an open state, and at the moment, the ear can ventilate, and when the knob is rotated so that the blocking cover can shield the first air hole, the earphone is in an open state. At the moment, the earphone can be switched from an open state to a sealed state, so that heat preservation is carried out on ears, or a sealed environment is provided to improve the noise reduction effect of the earphone; therefore, a user can freely switch the two forms according to needs so as to adapt to the requirements of different users and adapt to different environments, the product is very convenient and flexible to use, and the use experience is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of headphones, and in particular to an open-headphone with switchable forms. Background Art

[0002] Earphones (also known as headphones, head-sets, or earpieces) are a pair of transducers that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers placed close to the ear. Headphones can be detached from the media player and connected using a single plug, allowing users to listen to audio without disturbing others. They can also block out ambient sound, making them useful in noisy environments such as recording studios, bars, travel, and sports. Originally designed for use with telephones and radios, they are now commonly used with mobile phones, Walkmans, radios, portable video games, and digital audio players, among other devices.

[0003] Headphones are the most common type of headphones. When used, they are worn on the head, and the entire headphone structure covers the ears. Therefore, they have better sound insulation and noise reduction effects.

[0004] However, since headphones are generally equipped with earmuffs, the earmuffs cover the ears, making the ear area non-breathable. Therefore, after prolonged use, especially in high temperatures, users will feel that their ears are very stuffy and uncomfortable, which will seriously affect the user experience. At the same time, long-term wearing will cause sweat to accumulate, and the sweat in the ears will further reduce the service life of the earmuffs.

[0005] To address this issue, there are currently some open-back headphones on the market. Most of them have through-holes to allow ventilation to the ears and solve the problem of stuffiness. However, most of these open-back headphones expose the ears to the air when worn, which allows outside wind to enter the headphones, affecting the noise reduction effect and ear warmth. Therefore, for open-back headphones, how to solve the problem of wind noise and ear warmth in cold weather, as well as how to achieve the required improvement of noise reduction in certain situations, are all urgent problems that need to be solved. Summary of the Invention

[0006] The present invention provides a switchable open-ear headset to solve the problem that existing headsets cannot simultaneously take into account breathability, noise reduction effect and ear warmth, resulting in a poor user experience.

[0007] The technical solution adopted by the present invention is as follows: A switchable open-back headset, comprising: a headband and two earphone bodies; the two earphone bodies are respectively installed on both sides of the headband, and at least one of the earphone bodies is provided with a knob, a cover and a first air vent, and the first air vent passes through both sides of the earphone body; the cover and the knob are both rotatably installed on the earphone body, and the cover is connected to the knob, and the cover is driven to rotate by the knob to cover or open the first air vent.

[0008] In one embodiment, the earphone body includes a base and a shell, the shell is disposed on the base, and the first vent passes through the shell and the base; the base has a cavity for accommodating an ear on a side facing the user, and the cavity is in communication with the first vent;

[0009] The blocking cover is rotatably installed between the base and the shell, and a second air hole is provided on the blocking cover; the knob is rotatably installed on a side of the shell away from the base, and the knob is connected to the blocking cover and can drive the blocking cover to rotate; when the second air hole corresponds to the first air hole, the earphone switches to an open state; when the second air hole is misaligned with the first air hole, the blocking cover blocks the first air hole, and the earphone switches to a sealed state.

[0010] In one embodiment, a hollow connecting ring is provided in the middle of the housing, and a circular sliding groove is provided on a side of the base facing the blocking cover;

[0011] The middle of the blocking cover is provided with a hollow supporting ring, the supporting ring is rotatably mounted in the connecting ring, and the bottom of the blocking cover is accommodated in the sliding groove;

[0012] The knob is rotatably mounted on a side of the connecting ring away from the base. The knob is connected to the supporting ring of the blocking cover and drives the blocking cover to rotate in the sliding groove.

[0013] In one embodiment, a clamping block is protruded from the inner wall of the support ring, a convex plate is protruded from the inner wall of the knob, a clamping slot is provided on the convex plate, the bottom of the convex plate extends into the support ring, and the clamping block is clamped into the clamping slot.

[0014] In one embodiment, the knob is a hollow ring structure and is rotatably mounted on the side of the connecting ring away from the blocking cover; the inner wall of the knob is recessed on the side away from the blocking cover to form a cavity, a connecting plate is installed in the cavity, a through hole is provided on the connecting plate, a fastener is installed in the through hole, and the fastener passes through the connecting ring and the support ring and is connected to the base.

[0015] In one embodiment, the outer side wall of the base is recessed with a positioning groove and a fixing groove, and the inner side wall of the shell is convexly provided with a positioning block and a fixing block, the positioning block is inserted into the positioning groove for positioning, and the fixing block is snapped into the fixing groove for fixing.

[0016] In one embodiment, a first limit block is provided in the earphone body, and a second limit block is protruded from the outer side wall of the blocking cover. The first limit block is located on the moving path of the second limit block, so that the rotation angle of the blocking cover is limited by the first limit block and the second limit block.

[0017] In one embodiment, a sealing member is provided on the blocking cover, and the sealing member is abutted between the blocking cover and the housing.

[0018] In one embodiment, the sealing member is disposed around the second air vent, and an escape groove is recessed on the inner wall of the housing to facilitate movement of the blocking cover and the sealing member.

[0019] In one embodiment, the sealing member includes a first sealing ring, a second sealing ring and a plurality of sealing strips; the two ends of the plurality of sealing strips are respectively connected to the first sealing ring and the second sealing ring, and the plurality of sealing strips form an encirclement with the first sealing ring and the second sealing ring and surround the periphery of the second air vent; when the blocking cover covers the first air vent, the sealing strips rest against the outer shell structure between the avoidance groove and the first air vent.

[0020] The beneficial effects of the present invention are as follows: the open-back headphones provided by the present application include: a headband and two earphone bodies; the two earphone bodies are respectively installed on both sides of the headband, and at least one earphone body is provided with a knob, a cover and a first air hole, and the first air hole runs through both sides of the earphone body; the cover and the knob are both rotatably installed on the earphone body, and the cover is connected to the knob, and the cover is driven to rotate by the knob to make the cover cover cover or open the first air hole. When the first air hole is opened, the earphone is in an open state, and the ear can breathe. When the knob is turned to make the cover cover the first air hole, the earphone can be switched from an open state to a sealed state, thereby keeping the ear warm, or providing a sealed environment to improve the noise reduction effect of the earphone; therefore, the user can freely switch between the two forms as needed to adapt to the needs of different users and adapt to different environments. The product is very convenient and flexible to use, which greatly improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are provided to further illustrate the present invention and constitute a part of the specification. Together with the following examples, they are used to explain the present invention but should not be construed as limiting the present invention.

[0022] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention when the first vent hole is not blocked;

[0023] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention when the first vent hole is blocked;

[0024] Figure 3 is an exploded schematic diagram of the earphone body in a preferred embodiment of the present invention;

[0025] Figure 4 is a cross-sectional view of an earphone body in a preferred embodiment of the present invention;

[0026] Figure 5 is an enlarged schematic diagram of the base in a preferred embodiment of the present invention;

[0027] Figure 6 is an enlarged schematic diagram of the housing in a preferred embodiment of the present invention;

[0028] Figure 7 It is an exploded and enlarged schematic diagram of the blocking cover and the sealing member in a preferred embodiment of the present invention;

[0029] Figure 8 It is an exploded and enlarged schematic diagram of the decorative cover and the connecting plate in a preferred embodiment of the present invention.

[0030] Illustrations: 10, headband; 20, earphone body; 21, base; 211, positioning slot; 212, fixing slot; 213, slide slot; 22, housing; 221, positioning block; 222, fixing block; 223, connecting ring; 224, step; 225, first limit block; 226, avoidance slot; 23, sound unit; 24, cover; 241, support ring; 242, support block; 243, card block; 244, lock bar; 245, first Two limit blocks; 246, mounting groove; 25, knob; 251, convex plate; 252, slot; 253, lock hole; 254, concave cavity; 26, connecting plate; 261, through hole; 27, fastener; 28, decorative cover; 281, connecting column; 29, sealing member; 291, first sealing ring; 292, second sealing ring; 293, sealing strip; 294, convex; 201, accommodating cavity; 202, first air vent; 203, second air vent. DETAILED DESCRIPTION

[0031] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0032] To facilitate understanding by those skilled in the art, this application describes the specific implementation process of the technical solutions in this application through the following specific embodiments.

[0033] See also Figure 1 - Figure 2 The present embodiment is a switchable open-ear headset, comprising: a headband 10 and two earphone bodies 20. The two earphone bodies 20 are respectively connected to the two sides of the headband 10, and at least one earphone body 20 is provided with a blocking cover 24, a knob 25 and a first air vent 202; the first air vent 202 passes through both sides of the earphone body 20, specifically, the side of the earphone body 20 that fits the ear and the side away from the ear; the blocking cover 24 and the knob 25 are both rotatably mounted on the earphone body 20, and the blocking cover 24 is connected to the knob 25, and the blocking cover 24 is driven to rotate by the knob 25 to cover or open the first air vent 202. When the first air hole 202 is open, the earphone is in an open state, and the ear can breathe. When the knob 25 is turned to cover the first air hole 202 with the blocking cover 24, the earphone can be switched from an open state to a sealed state, thereby keeping the ear warm or providing a sealed environment to improve the noise reduction effect of the earphone. Therefore, the user can freely switch between the two states as needed to adapt to the needs of different users and different environments. The product is very convenient and flexible to use, which greatly improves the user experience.

[0034] See also Figure 1 - Figure 7 In this embodiment, the earphone body 20 includes a base 21 and a shell 22. The shell 22 is disposed on the base 21. A first vent 202 passes through the base 21 and the shell 22. The base 21 has a cavity 201 for accommodating the ear on the side facing the user. The cavity 201 is connected to the first vent 202 so that when the earphone is worn, the cavity 201 is connected to the external environment through the first vent 202, thereby realizing an open setting of the earphone.

[0035] The blocking cover 24 is rotatably mounted between the base 21 and the outer shell 22, and a second air hole 203 is provided on the blocking cover 24; the knob 25 is rotatably mounted on the side of the outer shell 22 away from the base 21, and the knob 25 is connected to the blocking cover 24 and can drive the blocking cover 24 to rotate; when the second air hole 203 corresponds to the first air hole 202, the earphone switches to an open state; when the second air hole 203 is misaligned with the first air hole 202, the blocking cover 24 blocks or partially blocks the first air hole 202, and when the first air hole 202 is completely blocked, the earphone switches to a sealed state.

[0036] For further information, see Figure 1 - Figure 3Two first ventilation holes 202 are symmetrically arranged on the earphone body 20, and two second ventilation holes 203 are symmetrically arranged on the cover 24, and the two second ventilation holes 203 correspond one-to-one with the two first ventilation holes 202. When the second ventilation holes 203 correspond to the first ventilation holes 202, the earphone switches to an open state. At this time, the second ventilation holes 203 and the first ventilation holes 202 can connect the ear to the external environment, allowing the ear to ventilate and reduce the problem of stuffiness caused by the user wearing and using the earphones for a long time. When the second ventilation holes 203 and the first ventilation holes 202 are misaligned, the cover 24 blocks the first ventilation holes 202, and the earphone switches to a sealed state. At this time, the earphone can keep warm or provide a sealed environment to improve the noise reduction effect of the earphone.

[0037] For further information, see Figure 3 - Figure 6 The outer wall of the base 21 is recessed with a positioning groove 211 and a fixing groove 212, while the inner wall of the housing 22 is convexly provided with a positioning block 221 and a fixing block 222. During installation, the positioning block 221 is inserted into the positioning groove 211 for positioning, and the fixing block 222 is finally snapped into the fixing groove 212, thereby completing the assembly and fixation of the housing 22 and the base 21. A sound unit 23 is provided on the base 21. The sound unit 23 is a speaker. The sound unit 23 is fixedly mounted on the base 21 and suspended in the accommodating cavity 201, so that the sound unit 23 is aligned with the user's ear, improving the efficiency of sound transmission.

[0038] See also Figure 3 - Figure 7 In this embodiment, the shell 22 is generally trumpet-shaped and has a hollow connecting ring 223 in the middle. A ring-shaped slide groove 213 is recessed on the side of the base 21 facing the blocking cover 24; the blocking cover 24 is generally trumpet-shaped and has a hollow supporting ring 241 in the middle. The supporting ring 241 can be rotatably installed in the connecting ring 223, and the bottom of the blocking cover 24 is accommodated in the slide groove 213 and can be rotated in the slide groove 213, so that the blocking cover 24 is installed between the shell 22 and the base 21; and the knob 25 is rotatably installed on the side of the connecting ring 223 away from the base. The knob 25 is connected to the support ring 241 of the blocking cover 24 and drives the blocking cover 24 to rotate in the slide groove 213 when rotating, thereby realizing the opening or closing of the first air vent 202 and realizing the switching of the earphone form.

[0039] Specifically, a step 224 is protruding from the inner wall of the connecting ring 223 of the housing 22, and a support block 242 is protruding from the outer wall of the supporting ring 241 of the blocking cover 24. When the blocking cover 24 and the housing 22 are assembled, the supporting ring 241 is accommodated in the connecting ring 223, and the support block 242 abuts against the step 224, thereby achieving the connection between the blocking cover 24 and the housing 22 and allowing the blocking cover 24 to rotate on the housing 22. At the same time, the bottom periphery of the blocking cover 24 is accommodated in the sliding groove 213 and rotates and slides along the sliding groove 213, making the rotation of the blocking cover 24 more stable and reliable.

[0040] The knob 25 is a hollow, ring-shaped structure. It rests against the side of the connecting ring 223 away from the cover 24 and is rotatable there. A portion of the bottom portion of the knob 25 extends into the connecting ring 223 and is connected to the support ring 241. The inner wall of the knob 25, on the side away from the cover 24, is recessed to form a cavity 254. A connecting plate 26 is mounted within the cavity 254. The connecting plate 26 has a through hole 261 formed therein. A fastener 27 is mounted in the through hole 261. The fastener 27 passes through the connecting ring 223 and the support ring 241 and is then connected to the base 21, thereby securing the knob 25 and the cover 24 to the earphone body 20. The fastener 27 may be a bolt, a screw, or the like, without limitation.

[0041] For further information, see Figure 3 - Figure 7 A block 243 is convexly provided on the inner wall of the support ring 241 of the blocking cover 24, and one side of the inner wall of the knob 25 is recessed to form a cavity 254, and the side opposite to the cavity 254 is formed as a convex plate 251, and a groove 252 is provided on the convex plate 251. The bottom of the convex plate 251 extends into the support ring 241, and the block 243 is clamped in the groove 252, thereby realizing the connection between the support ring 241 and the convex plate 251, and thereby realizing the connection between the blocking cover 24 and the knob 25.

[0042] In addition, a locking bar 244 is provided on the end surface of the support ring 241 facing the knob 25, and a through locking hole 253 is provided on the protruding plate 251. During assembly, the locking bar 244 is correspondingly inserted into the locking hole 253, thereby achieving the positioning assembly of the cover 24 and the knob 25.

[0043] For further information, see Figure 3 、 Figure 6 - Figure 7The housing 22 of the earphone body 20 is provided with a first stopper 225, and the outer peripheral sidewall of the blocking cover 24 is provided with a second stopper 245. When the blocking cover 24 rotates, the first stopper 225 is located in the movement path of the second stopper 245. The first stopper 225 blocks the second stopper 245, thereby limiting the rotation angle of the blocking cover 24. Specifically, the blocking cover 24 can rotate only within a certain angle range, ensuring that the blocking cover 24 can accurately and quickly cover the first air vent 202. In this embodiment, the rotation angle of the blocking cover 24 is 90°, but this is not a limit.

[0044] See also Figure 1 - Figure 4 、 Figure 6 - Figure 7 In this embodiment, a seal 29 is provided on the cover 24. The seal 29 abuts against the cover 24 and the housing 22, thereby improving the seal between the cover 24 and the housing 22. The seal 29 is positioned around the second vent 203. When the second vent 203 aligns with the first vent 202, the earphones are in an open configuration. The seal 29 improves the sealing performance around the first vent 202, reducing sound leakage and ensuring acoustic performance. Furthermore, a recessed groove 226 is provided on the inner wall of the housing 22. The recessed groove 226 provides a position for the seal 29 to move. Therefore, when the cover 24 rotates, the seal 29 is accommodated and moves within the recessed groove 226, thereby reducing contact resistance between the cover 24 and the housing 22 and facilitating rotation of the cover 24.

[0045] Specifically, a mounting groove 246 is recessed on the side of the blocking cover 24 facing the outer shell 22, and the mounting groove 246 is used to install a seal 29; the seal 29 includes a first sealing ring 291, a second sealing ring 292 and a plurality of sealing strips 293; the first sealing ring 291 is installed around the support ring 241, and the second sealing ring 292 is arranged at the edge of the blocking cover 24, and the two ends of the plurality of sealing strips 293 are respectively connected to the first sealing ring 291 and the second sealing ring 292, and the plurality of sealing strips 293 form an encirclement with the first sealing ring 291 and the second sealing ring 292 and surround the periphery of the second air vent 203, thereby sealing the first air vent 202; when the blocking cover 24 blocks the first air vent 202, the sealing strip 293 abuts against the structure of the outer shell 22 between the avoidance groove 226 and the first air vent 202, and the structure is higher than the avoidance groove 226, which can make the sealing strip 293 more tightly abut against the outer shell 22 to improve the sealing performance. In addition, a locking protrusion 294 is provided on the outer surface of the sealing member 29 . The locking protrusion 294 can make the sealing member 29 more tightly pressed between the housing 22 and the blocking cover 24 , thereby further improving the sealing between the blocking cover 24 and the housing 22 .

[0046] See also Figure 3 、 Figure 8In this embodiment, the outer side of the connecting plate 26 is covered with a decorative cover 28, which can be provided with different patterns and colors to beautify the appearance of the earphone, and the inner side of the decorative cover 28 is provided with a connecting column 281. During assembly, the decorative cover 28 is inserted into the through hole 261 of the connecting plate 26 through the connecting column 281, so as to install the decorative cover 28 on the connecting plate 26. At the same time, the decorative cover 28 can hide the through hole 261 and the internal fastener 27 on the connecting plate 26, so as to improve the appearance of the earphone. In addition, the connecting columns 281 are symmetrically arranged, and the through holes 261 are correspondingly symmetrically arranged. The two connecting columns 281 are respectively inserted into the two through holes 261 and tightly fit and fix, so that the installation is more stable.

[0047] When the earphone of the present application is in use, after the product is worn on the head, the user's ear is accommodated in the accommodating cavity 201 of the earphone body 20. When the ear needs to ventilate, the knob 25 is rotated to rotate the cover 24 driven by the knob 25, so that the second ventilation hole 203 communicates with the first ventilation hole 202. At this time, the earphone switches to an open mode, and the second ventilation hole 203 and the first ventilation hole 202 can communicate the ear with the external environment, so that the ear can ventilate, and reduce the problem of stuffiness after long-term use. When the ear needs to be warmed or a sealed environment is provided to improve the noise reduction effect of the earphone, the knob 25 is rotated in the opposite direction, the cover 24 is rotated in the opposite direction driven by the knob 25, so that the second ventilation hole 203 is dislocated with the first ventilation hole 202, and the cover 24 shields the first ventilation hole 202. At this time, the earphone switches to a sealed mode, so that the ear can be warmed or a sealed environment is provided to improve the noise reduction effect of the earphone.

[0048] Compared with the prior art, the head-mounted open earphone provided by the present application comprises a head beam 10 and two earphone bodies 20. The two earphone bodies 20 are respectively mounted on the two sides of the head beam 10. At least one earphone body 20 is provided with a knob 25, a cover 24 and a first ventilation hole 202. The first ventilation hole 202 penetrates through the two sides of the earphone body 20. The cover 24 and the knob 25 are both rotationally installed on the earphone body 20, and the cover 24 is connected with the knob 25. The cover 24 is driven to rotate by the knob 25, so as to shield or open the first ventilation hole 202. When the first ventilation hole 202 is opened, the earphone is in an open mode, and the ear can ventilate at this time. When the knob 25 is rotated, the cover 24 is shielded on the first ventilation hole, so that the earphone can be switched from the open mode to the sealed mode, so as to warm the ear or provide a sealed environment to improve the noise reduction effect of the earphone. Therefore, the user can freely switch between the two modes according to the needs, so as to adapt to the needs of different users and adapt to different environments. The product is very convenient and flexible to use, and the use experience is greatly improved.

[0049] As long as the idea of the present application is not violated, any combination of various different embodiments of the present application should be considered as the disclosed content of the present application; within the technical concept of the present application, any combination of various simple modifications and different embodiments of the technical solutions without violating the idea of the present application should be within the protection scope of the present application.

Claims

1. A switchable open-back headphone, comprising: A headband and two earphone bodies; the two earphone bodies are respectively installed on both sides of the headband, and are characterized in that: at least one of the earphone bodies is provided with a knob, a cover and a first air vent, and the first air vent runs through both sides of the earphone body; the cover and the knob are both rotatably installed on the earphone body, and the cover is connected to the knob, and the cover is driven to rotate by the knob to cover or open the first air vent.

2. The switchable open-back headphone according to claim 1, characterized in that: The earphone body includes a base and a shell, the shell is disposed on the base, and the first vent penetrates the shell and the base; the side of the base facing the user has a receiving cavity for accommodating the ear, and the receiving cavity is connected to the first vent; The shield is rotatably mounted between the base and the housing, and a second air vent is formed on the shield; the knob is rotatably mounted on a side of the housing away from the base, the knob being connected to the shield and capable of driving the shield to rotate; when the second air vent is aligned with the first air vent, the earphone switches to an open state; When the second vent hole is misaligned with the first vent hole, the blocking cover blocks the first vent hole and the earphone switches to a sealed state.

3. The switchable open-back headphone according to claim 2, characterized in that: A hollow connecting ring is provided in the middle of the shell, and a circular sliding groove is provided on the side of the base facing the blocking cover; The middle of the blocking cover is provided with a hollow supporting ring, the supporting ring is rotatably mounted in the connecting ring, and the bottom of the blocking cover is accommodated in the sliding groove; The knob is rotatably mounted on a side of the connecting ring away from the base. The knob is connected to the supporting ring of the blocking cover and drives the blocking cover to rotate in the sliding groove.

4. The switchable open-back headphone according to claim 3, characterized in that: A clamping block is protruded on the inner wall of the support ring, and a convex plate is protruded on the inner wall of the knob. A clamping slot is provided on the convex plate. The bottom of the convex plate extends into the support ring and enables the clamping block to be clamped in the clamping slot.

5. The switchable open-back headphone according to claim 3, characterized in that: The knob is a hollow ring structure and is rotatably mounted on the side of the connecting ring away from the blocking cover; the inner wall of the knob is recessed on the side away from the blocking cover to form a cavity, a connecting plate is installed in the cavity, a through hole is provided on the connecting plate, a fastener is installed in the through hole, and the fastener passes through the connecting ring and the support ring and is connected to the base.

6. The switchable open-back headphone according to claim 2, characterized in that: The outer side wall of the base is concavely provided with a positioning groove and a fixing groove, and the inner side wall of the shell is convexly provided with a positioning block and a fixing block. The positioning block is inserted into the positioning groove for positioning, and the fixing block is snapped into the fixing groove for fixing.

7. The switchable open-back headphone according to claim 1, characterized in that: A first limit block is provided in the earphone body, and a second limit block is protruded from the outer peripheral side wall of the blocking cover. The first limit block is located on the moving path of the second limit block, so that the rotation angle of the blocking cover is limited by the first limit block and the second limit block.

8. The switchable open-back headphone according to claim 2, characterized in that: The blocking cover is provided with a sealing member, and the sealing member is abutted between the blocking cover and the shell.

9. The switchable open-back headphone according to claim 8, characterized in that: The sealing member is arranged around the second air vent, and an escape groove is recessed on the inner wall of the shell to facilitate the movement of the blocking cover and the sealing member.

10. The switchable open-back headphone according to claim 9, characterized in that: The sealing member includes a first sealing ring, a second sealing ring, and a plurality of sealing strips; the ends of the plurality of sealing strips are respectively connected to the first sealing ring and the second sealing ring, and the plurality of sealing strips, the first sealing ring, and the second sealing ring form an encircling ring that surrounds the periphery of the second air vent; When the blocking cover covers the first vent hole, the sealing strip abuts against the outer shell structure between the avoidance groove and the first vent hole.

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