Earmuff and head-mounted Bluetooth earphone
By incorporating a sealing mechanism and a self-locking component on the earcups, the ventilation openings can be actively adjusted, solving the problems of stuffiness and noise caused by the closed structure of over-ear Bluetooth headphones, thus improving wearing comfort and practicality.
Patent Information
- Application Number
- CN202610028585.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-09
- Publication Date
- 2026-02-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Commercially available over-ear Bluetooth headphones often suffer from stuffiness and dampness due to the enclosed structure of the earcups, and the fixed ventilation holes also affect sound insulation.
Design an earmuff with a sealing mechanism, which controls the opening and closing of the vents through adjustment and self-locking components to achieve active adjustment of ventilation status and ensure flexible switching between ventilation and sound insulation when needed.
It effectively regulates airflow inside the earcups, reduces stuffiness, improves wearing comfort, and prevents dust from entering when not in use, thus enhancing practicality and sound insulation.
Smart Images
Figure CN121531269A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of ear cover and Bluetooth earphone, in particular to an ear cover and a Bluetooth earphone. BACKGROUND
[0002] Bluetooth earphone is a kind of earphone that applies Bluetooth technology to the head-mounted earphone, allowing users to communicate freely in various ways without being bound by annoying wires. It is composed of two parts: a signal transmitter and an earphone with signal receiving and amplifying devices. The transmitter is connected to the signal source, and a preamplifier or earphone amplifier can be connected in front of the transmitter to improve sound quality and adjust tone.
[0003] At present, the head-mounted Bluetooth earphone on the market mainly includes a headband and an ear cover. The ear cover assembly completely covers the user's ears when worn, forming a relatively closed acoustic environment. However, this closed structure, while achieving good sound insulation and sound field wrapping, also causes the user's ears to be in a sealed state for a long time, making it difficult to exchange air with the outside world. After wearing for a long time, heat and moisture can accumulate inside the ear cover, causing discomfort such as stuffiness and dampness, which is particularly noticeable in summer or in high-temperature use scenarios, directly affecting the user's comfort.
[0004] To improve this problem, the related art usually opens one or more ventilation holes on the ear cover shell of the earphone, promoting air exchange between the inside and outside through physical opening, thereby relieving the stuffy feeling caused by the sealed environment. However, this fixed opening method makes it impossible for users to flexibly select the opening and closing state of the ventilation hole according to the actual use environment. In scenarios where sound insulation is needed, external noise will enter the ear cover, affecting the overall experience. Therefore, we have improved it and proposed an ear cover and a Bluetooth earphone. SUMMARY
[0005] The purpose of the present application is to solve the problem that the head-mounted Bluetooth earphone on the market usually opens one or more ventilation holes on the ear cover shell of the earphone, promoting air exchange between the inside and outside through physical opening, thereby relieving the stuffy feeling caused by the sealed environment. However, this fixed opening method makes it impossible for users to flexibly select the opening and closing state of the ventilation hole according to the actual use environment. In scenarios where sound insulation is needed, external noise will enter the ear cover, affecting the overall experience.
[0006] To solve the above problems, the technical solution adopted by the present application is as follows: An ear cover, comprising: a shell, one side of the shell having a mounting cavity, a first air vent being formed through the middle of the shell; A cover is provided at the opening of the mounting cavity, and a second vent is provided in the middle of the cover, which corresponds to the first vent. The ear pads are arranged in a ring around the outer edge of the shell cover, and the inner side of the ear pads has a connecting plate that is fixed to the shell cover. The sealing mechanism includes a set of sealing plates arranged in a ring on the outside of the housing. The opposite ends of all the sealing plates are joined together to close the first vent, and separated to open the first vent. An adjustment component for controlling the joining of the sealing plates is provided inside the housing.
[0007] As a preferred technical solution of this application, the adjustment assembly includes an adjustment ring coaxially rotatably disposed on the outside of the housing. The sealing plate has a triangular plate structure and an arc edge on each side. The adjustment ring is located on the periphery of the sealing plate. One end of the outer side of the sealing plate is hinged to the housing, and the other end is hinged to the adjustment ring through a hinge rod.
[0008] As a preferred technical solution of this application, the outer side of the housing is provided with a receiving groove adapted to the adjusting ring, the adjusting ring is rotatably disposed on the inner wall of the receiving groove, a cover is adapted to be installed at the opening of the receiving groove, and a third vent is provided in the middle of the cover, which is adapted to the first vent.
[0009] As a preferred technical solution of this application, the adjustment assembly further includes an operating ring rotatably disposed on the inner wall of the mounting cavity. The adjustment ring and the operating ring are fixed together by an arc-shaped rod. The inner wall of the housing is provided with a first arc-shaped slot that penetrates the mounting cavity. An operating block that passes through the first arc-shaped slot and extends out of the housing is fixed on the adjustment ring.
[0010] As a preferred technical solution of this application, the middle part of the mounting cavity has a mounting platform, and the bottom of the mounting platform is provided with a second arc-shaped slot that communicates with the receiving groove, and the arc-shaped rod moves within the second arc-shaped slot.
[0011] As a preferred technical solution of this application, the mounting platform is an annular platform structure coaxially arranged outside the first vent. An air pipe adapted to the first vent is provided on the outside of the mounting platform. A ventilation groove is opened at the bottom of the air pipe, and a filter screen is provided at the outer end of the air pipe.
[0012] As a preferred technical solution of this application, it also includes a self-locking component for driving the opposite ends of all the sealing plates to engage and close the first vent when the earmuff is idle. The component includes a first piston embedded in the shell cover and a second piston fixed to the inside of the shell cover. The output end of the second piston is connected to a reset block that makes an arc-shaped movement. The inner side of the operating ring has a protrusion that abuts against the reset block. The movement path of the reset block is coaxial with the movement path of the protrusion and is located outside the protrusion.
[0013] As a preferred technical solution of this application, the first piston component includes a set of first piston cylinders that are equidistantly embedded in the housing in an arc shape, and a first piston rod is provided on the first piston cylinder. The second piston component includes a second piston cylinder that is coaxially installed on the inner side of the housing. The second piston cylinder has an arc-shaped cylindrical structure and the output end is adapted to install an arc-shaped second piston rod. The reset block is fixed to the outer end of the second piston rod. All the first piston cylinders and the second piston cylinders are connected in sequence. The inner side of the connecting plate is fixed to the outer end of all the first piston rods.
[0014] As a preferred technical solution of this application, two annular barriers are arranged sequentially from the inside to the outside of the outer side of the housing. The two annular barriers are located on the inner and outer sides of the first piston cylinder, respectively. The connecting plate is an annular plate structure adapted to the annular barriers. A set of elastic reset members are arranged equidistantly in an annular pattern between the connecting plate and the inner wall of the housing.
[0015] A Bluetooth headset includes an arc-shaped headband, with two earcups symmetrically arranged, and the two ends of the headband being fixedly connected to the top of the corresponding earcups.
[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This application realizes the active and controllable adjustment of the ventilation state inside the earmuff by setting a first vent with a sealing mechanism on the shell. Users can conveniently control the state of the first vent according to actual needs. When the first vent is open, it effectively promotes the air circulation inside and outside the earmuff, timely discharges hot and humid air, reduces the stuffiness and dampness caused by long-term sealed wearing, and improves the thermal comfort of wearing. When the first vent is closed, it effectively isolates external environmental noise and improves the applicability of the earmuff. (2) The self-locking component of this application, when the earmuff is in contact with the user's ear, is clamped and hung on the user's head. Therefore, the first piston is squeezed, causing the medium inside to enter the second piston. This makes the reset block at the output end of the second piston move away from the protrusion, leaving space for the protrusion to rotate with the operating ring. When the earmuff is idle, the pressure of the first piston on the user's head disappears. Under the reset action of the elastic reset component, the first piston and the second piston are reset by the reset block. Thus, no matter where the protrusion is, it can be squeezed and reset by the reset block. That is, the opposite ends of the sealing plate on the sealing mechanism are connected to close the first vent, thereby reducing the probability that the first vent on the earmuff is open and dust and debris enters when it is idle, and improving the practicality of the device. Attached Figure Description
[0017] Figure 1A schematic diagram of the structure of the earmuff provided in this application, showing the separation of the shell and the cover; Figure 2 A schematic diagram of the sealing mechanism of the earmuff provided in this application located on the shell; Figure 3 A schematic diagram of the internal structure of the earcup shell provided in this application; Figure 4 The earmuffs provided for this application Figure 3 Enlarged view of point A in the middle; Figure 5 A schematic diagram illustrating the separation of the ear pads and the shell cover of the earmuff provided in this application; Figure 6 A schematic diagram of the operating ring and self-locking assembly of the earmuff provided in this application; Figure 7 The earmuffs provided for this application Figure 6 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the overall structure of the Bluetooth headset provided in this application.
[0018] In the picture: 100. Housing; 101. Mounting cavity; 102. First vent; 103. Receiving groove; 104. Cover; 105. Third vent; 106. Mounting platform; 200. Shell cover; 201. Second vent; 300. Ear pads; 301. Connecting plate; 400. Sealing mechanism; 401. Sealing plate; 402. Adjusting ring; 403. Hinge rod; 404. Operating ring; 405. Arc rod; 406. First arc groove; 407. Operating block; 408. Second arc groove; 409. Air pipe; 410. Ventilation slot; 411. Filter screen; 500. Self-locking assembly; 501. Reset block; 502. Protrusion; 503. First piston cylinder; 504. First piston rod; 505. Second piston cylinder; 506. Second piston rod; 507. Annular enclosure; 508. Elastic reset component; 600. Headwear. Detailed Implementation
[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0020] The present invention will be further described below with reference to embodiments.
[0021] Example: Refer to Figures 1 to 6 An earmuff includes a housing 100, a cover 200, and an ear pad 300. The housing 100 has a mounting cavity 101 on one side, and a first vent 102 is formed through the middle of the housing 100. The cover 200 is positioned at the opening of the mounting cavity 101, and a second vent 201 corresponding to the first vent 102 is formed in the middle of the cover 200. The ear pad 300 is annularly positioned along the outer edge of the cover 200, and a connecting plate 301 fixed to the cover 200 is located on the inner side of the ear pad 300. The connection between the first vent 102 and the second vent 201 allows for air circulation between the user's ear and the outside air during use, reducing the likelihood of stuffiness and discomfort caused by prolonged exposure to a closed environment, thus improving user comfort. Considering that the first vent 102 and the second vent 201 are in the open state, firstly, the noise reduction function of the earmuffs is reduced, and secondly, dust, debris and other impurities can easily enter the first vent 102 and the second vent 201 when the earmuffs are not in use, requiring users to clean them frequently. Therefore, this application also provides a sealing mechanism 400. The sealing mechanism 400 includes a set of sealing plates 401 arranged in a ring on the outside of the housing 100. When the opposite ends of all the sealing plates 401 are connected, the first vent 102 is closed, and when they are separated, the first vent 102 is opened. Thus, when the earmuffs are in use, the user can choose to open the first vent 102 to reduce ear discomfort, or close the first vent 102 to ensure the noise reduction function of the earmuffs by isolating the external environment. An adjustment component for controlling the connection of the sealing plates 401 is provided inside the housing 100.
[0022] Furthermore, such as Figures 1 to 2 As shown, the adjustment assembly includes an adjustment ring 402 coaxially rotatably disposed on the outside of the housing 100. The sealing plate 401 has a triangular plate structure with an arc edge on each side. The adjustment ring 402 is located on the periphery of the sealing plate 401. One end of the outer side of the sealing plate 401 is hinged to the housing 100, and the other end is hinged to the adjustment ring 402 through a hinge rod 403. By driving the adjustment ring 402 to rotate clockwise, the hinge rod 403 moves synchronously. Since one end of the sealing plate 401 is hinged to the housing 100, the hinge rod 403 will drive the other end of the sealing plate 401 to rotate along its hinge end, thereby causing the sealing plate 401 to rotate towards the outside of the first vent 102 so that it moves away from the first vent 102, so that the first vent 102 is in the open state. Conversely, driving the adjustment ring 402 to reset counterclockwise can reset the sealing plate 401 to close the first vent 102.
[0023] Furthermore, such as Figure 8As shown, the outer side of the housing 100 is provided with a receiving groove 103 that is adapted to the adjusting ring 402. The adjusting ring 402 is rotatably disposed on the inner wall of the receiving groove 103. A cover 104 is adapted to be installed at the opening of the receiving groove 103. A third vent 105 adapted to the first vent 102 is provided in the middle of the cover 104. Through the receiving groove 103 and the cover 104, the outer side of the housing 100 can be made relatively flat, improving the appearance of the earmuff.
[0024] Furthermore, such as Figures 1 to 4 As shown, the adjustment assembly also includes an operating ring 404 rotatably disposed on the inner wall of the mounting cavity 101. The adjusting ring 402 and the operating ring 404 are fixed together by an arc-shaped rod 405. The inner wall of the housing 100 is provided with a first arc-shaped groove 406 that penetrates the mounting cavity 101. The area of the operating ring 404 is larger than the first arc-shaped groove 406 to keep the housing 100 in a closed state. An operating block 407 that passes through the first arc-shaped groove 406 and extends out of the housing 100 is fixed on the adjusting ring 402. Preferably, the first arc-shaped groove is located at the lower outer side of the housing 100, which makes it convenient for the user to push the operating block 407 down, making the operation more convenient and effortless. Specifically, through the operating block 407, the user pushes the operating block 407 along the first arc-shaped groove 406 with his finger to control the state between the sealing plate 401 and the first vent 102. The arc-shaped rod 405 fits against the inner wall of the mounting cavity 101 of the housing 100, saving space inside the mounting cavity 101.
[0025] Furthermore, such as Figures 3 to 4 As shown, the mounting cavity 101 has a mounting platform 106 in the middle. The bottom of the mounting platform 106 is provided with a second arc-shaped slot 408 that communicates with the receiving groove 103. The arc-shaped rod 405 moves in the second arc-shaped slot 408, which facilitates the installation of the operating ring 404 inside the housing 100. That is, the operating ring 404 is located in the middle of the housing 100, which is convenient for pushing the operating block 407 to control the opening and closing of the first vent 102. The mounting platform 106 is also convenient for the installation of headphone components such as speaker units and signal transceivers. The specifics are not described here.
[0026] Furthermore, such as Figures 3 to 4 As shown, the mounting platform 106 is an annular platform structure coaxially arranged outside the first vent 102. An air tube 409 adapted to the first vent 102 is provided on the outside of the mounting platform 106 for guiding the air inside the earmuff to flow outward. A ventilation groove 410 is provided at the bottom of the air tube 409 for allowing some sound to pass through when the earmuff is in use. A filter screen 411 is provided at the outer end of the air tube 409.
[0027] Considering that the operation ring 404 controls the opening and closing of the first vent 102 by pushing the operation block 407 to rotate, when the headphones are idle, the user may forget to reset the operation block 407, that is, the first vent 102 is in the open state for a long time, and dust, debris and other impurities may easily enter the air tube 409 of the housing 100. Not only does it require the user to clean it, but it also reduces the service life of the electrical components inside the housing 100. Therefore, in this application, a self-locking component 500 is also provided to drive the opposite ends of all the sealing plates 401 to connect and close the first vent 102 when the earcups are idle. Specifically, such as Figure 1 , Figures 5 to 7 As shown, the self-locking assembly 500 includes a first piston embedded in the cover 200 and a second piston fixed to the inside of the cover 200. The output end of the second piston is connected to a reset block 501 that makes an arc-shaped movement. The inner side of the operating ring 404 has a protrusion 502 that abuts against the reset block 501. The movement path of the reset block 501 is coaxial with the movement path of the protrusion 502 and is located outside the protrusion 502. Before the protrusion 502 moves, the reset block 501 moves away from the protrusion 502, leaving space for the protrusion 502 to move, which facilitates pushing the operating block 407 and the operating ring 404 to drive the sealing mechanism 400.
[0028] Furthermore, the first piston component includes a set of first piston cylinders 503 that are equidistantly embedded in the housing 100 in an arc shape, and a first piston rod 504 is provided on the first piston cylinder 503. The second piston component includes a second piston cylinder 505 coaxially mounted inside the housing 100. The second piston cylinder 505 has an arc-shaped cylindrical structure and its output end is adapted to be fitted with an arc-shaped second piston rod 506. The reset block 501 is fixed to the outer end of the second piston rod 506. All the first piston cylinders 503 and the second piston cylinders 505 are connected together. The connecting plate 301 is connected in sequence, and the inner side of the connecting plate 301 is fixed to the outer end of all the first piston rods 504. Two annular barriers 507 are arranged sequentially from the inside to the outside of the outer side of the housing 100. The two annular barriers 507 are located on the inner and outer sides of the first piston cylinder 503, respectively. The connecting plate 301 is an annular plate structure adapted to the annular barriers 507. A set of elastic reset members 508 are arranged in annularly at equal intervals between the connecting plate 301 and the inner wall of the housing 100. The two annular barriers 507 are used to guide the connecting plate 301.
[0029] With the self-locking component 500 in place, when the earmuff contacts the user's ear, it is clamped and hung on the user's head. Therefore, the ear pad 300 is compressed, causing the connecting plate 301 to press against the first piston rod 504. The medium inside the first piston enters the second piston, causing the reset block 501 driven by the second piston rod 506 to move away from the protrusion 502, leaving space for the protrusion 502 to rotate with the operating ring 404. In this state, the user can push the operating block 407 to rotate the operating ring 404 within the housing 100, thereby controlling the connection between the sealing plate 401 and the first vent 1. In the state between 02, when the earmuff is in an idle state, the first piston rod 504 is squeezed and disappears by the user's head. Under the reset action of the elastic reset member 508, the first piston member and the second piston member are driven to reset by the reset block 501. Thus, no matter where the protrusion 502 is, it can be squeezed and reset by the reset block 501. That is, the opposite ends of the sealing plate 401 on the sealing mechanism 400 are connected to close the first vent 102, thereby reducing the probability that the first vent 102 on the earmuff is open in the idle state and enters dust, debris and other impurities, improving the practicality of the device. like Figure 8 As shown, a Bluetooth headset includes an arc-shaped headband 600, two earcups symmetrically arranged, and the two ends of the headband 600 are fixedly connected to the top of the corresponding earcups. The earcups are provided with an operable first vent 102 to improve user comfort and thus enhance the practicality of the Bluetooth headset.
[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "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, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0031] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.
Claims
1. An earmuff, characterized in that, include: The housing (100) has a mounting cavity (101) on one side and a first vent (102) through the middle of the housing (100). A cover (200) is disposed at the opening of the mounting cavity (101), and a second vent (201) corresponding to the first vent (102) is provided in the middle of the cover (200). The ear pad (300) is arranged in a ring around the outer edge of the cover (200), and the inner side of the ear pad (300) has a connecting plate (301) that is fixed to the cover (200). The sealing mechanism (400) includes a set of sealing plates (401) arranged in a ring on the outside of the housing (100). The opposite ends of all the sealing plates (401) are connected to close the first vent (102), and the separation of the sealing plates (401) opens the first vent (102). An adjustment component for controlling the connection of the sealing plates (401) is provided inside the housing (100).
2. An earmuff according to claim 1, characterized in that, The adjustment assembly includes an adjustment ring (402) coaxially rotatably disposed on the outside of the housing (100). The sealing plate (401) has a triangular plate structure and an arc edge on each side. The adjustment ring (402) is located on the periphery of the sealing plate (401). One end of the outer side of the sealing plate (401) is hinged to the housing (100), and the other side is hinged to the adjustment ring (402) through a hinge rod (403).
3. An earmuff according to claim 2, characterized in that, The outer side of the housing (100) is provided with a receiving groove (103) adapted to the adjusting ring (402). The adjusting ring (402) is rotatably disposed on the inner wall of the receiving groove (103). A cover (104) is adapted to be installed at the opening of the receiving groove (103). A third vent (105) adapted to the first vent (102) is provided in the middle of the cover (104).
4. An earmuff according to claim 3, characterized in that, The adjustment assembly further includes an operating ring (404) rotatably disposed on the inner wall of the mounting cavity (101). The adjustment ring (402) and the operating ring (404) are fixed together by an arc-shaped rod (405). The inner wall of the housing (100) is provided with a first arc-shaped slot (406) penetrating the mounting cavity (101). An operating block (407) is fixed on the adjustment ring (402) that passes through the first arc-shaped slot (406) and extends out of the housing (100).
5. An earmuff according to claim 4, characterized in that, The mounting cavity (101) has a mounting platform (106) in the middle. The bottom of the mounting platform (106) is provided with a second arc-shaped slot (408) that communicates with the receiving groove (103). The arc-shaped rod (405) moves within the second arc-shaped slot (408).
6. An earmuff according to claim 5, characterized in that, The mounting platform (106) is an annular platform structure coaxially arranged outside the first vent (102). An air pipe (409) adapted to the first vent (102) is provided on the outside of the mounting platform (106). A ventilation groove (410) is opened at the bottom of the air pipe (409). A filter screen (411) is provided at the outer end of the air pipe (409).
7. An earmuff according to claim 6, characterized in that, It also includes a self-locking assembly (500) for driving the opposite ends of all the sealing plates (401) to close the first vent (102) when the earmuff is idle. The assembly includes a first piston embedded in the cover (200) and a second piston fixed to the inside of the cover (200). The output end of the second piston is connected to a reset block (501) that makes an arc-shaped movement. The inner side of the operating ring (404) has a protrusion (502) that abuts against the reset block (501). The movement path of the reset block (501) is coaxial with the movement path of the protrusion (502) and is located outside the protrusion (502).
8. An earmuff according to claim 7, characterized in that, The first piston component includes a set of first piston cylinders (503) that are equidistantly embedded in the housing (100) in an arc shape. A first piston rod (504) is provided on the first piston cylinder (503). The second piston component includes a second piston cylinder (505) that is coaxially mounted on the inner side of the housing (100). The second piston cylinder (505) has an arc-shaped cylindrical structure and the output end is adapted to install an arc-shaped second piston rod (506). The reset block (501) is fixed to the outer end of the second piston rod (506). All the first piston cylinders (503) and the second piston cylinders (505) are sequentially connected. The inner side of the connecting plate (301) is fixed to the outer end of all the first piston rods (504).
9. An earmuff according to claim 8, characterized in that, Two annular barriers (507) are arranged sequentially from the inside to the outside of the housing (100). The two annular barriers (507) are located on the inner and outer sides of the first piston cylinder (503), respectively. The connecting plate (301) is an annular plate structure adapted to the annular barriers (507). A set of elastic reset members (508) are arranged equidistantly in an annular shape between the connecting plate (301) and the inner wall of the housing (100).
10. A Bluetooth headset, using the earcups as described in claim 9, characterized in that, It also includes an arc-shaped headband (600), two of which are symmetrically arranged in the housing (100), and the two ends of the headband (600) are respectively fixedly connected to the top of the corresponding housing (100).