A pressure-adjustable earphone

Abstract

The present invention provides a pressure-adjustable earphone, comprising: two earpieces, each of the earpieces includes a housing, the housing defines an active chamber, and when the user wears the earpiece, the active chamber acoustically couples the sound output side of the speaker to the user's ear; further comprising a breathing mechanism, the breathing mechanism is arranged on the fluid passage where the active chamber communicates with the external environment of the earpiece, and the breathing mechanism is configured to selectively communicate the fluid in the active chamber to the external environment in response to the pressure change inside and outside the active chamber, so as to be able to balance the pressure between the active chamber and the external environment, realize the automatic dynamic adjustment of the air pressure in the ear canal, improve the wearing comfort of the user, and has a simple structure.

Description

Technical Field

[0001] The present invention relates to the field of audio output devices, and more particularly to a pressure-adjustable headphone. Background Art

[0002] Whether listening to a portable media player during travel or listening to a stereo system or theater system at home, consumers typically choose over-ear headphones. Over-ear headphones generally include a pair of earcups that surround the user's ears and are held together by a headband. Based on the design of the earcups, i.e., rear-closed earcups or rear-open earcups, over-ear headphones can be classified into two general categories. Rear-closed earcups surround the user's ears and have a sealed back. Rear-open earcups also surround the user's ears but have a back that is open to the surrounding environment around the earcups.

[0003] Both the rear-closed design and the rear-open design have their own acoustic advantages and disadvantages. For example, since rear-closed earcups isolate from ambient noise, they can have good sound insulation. In addition, the size and clamping force of the earcups can be modified to further improve sound insulation. Features of the rear-closed design such as the sealed back, size, and clamping force of the earcups allow this design to mechanically or passively attenuate ambient noise. However, due to the closed design of rear-closed earcups, pressure changes within the portion of the earcup that surrounds the user's ear may be uncomfortable. On the other hand, rear-open earcups may feel more open to the user, but may not be ideal in noisy environments because their passive attenuation may not be as good as that of the rear-closed design. Summary of the Invention

[0004] In view of the above drawbacks in the prior art, the present invention provides a pressure-adjustable headphone, comprising: two earpieces, each of the earpieces including a housing that defines an active chamber, the active chamber acoustically coupling the sound output side of a speaker to the user's ear when the user wears the earpiece; and further comprising a breathing mechanism disposed on a fluid passage through which the active chamber communicates with the external environment of the earpiece, the breathing mechanism being configured to selectively communicate the fluid within the active chamber to the external environment in response to pressure changes inside and outside the active chamber, so as to be able to equalize the pressure between the active chamber and the external environment.

[0005] Preferably, the breathing mechanism is an elastic membrane with deformation holes; when the pressure difference between the active chamber and the external environment is greater than or equal to a preset threshold, the elastic membrane expands towards the low-pressure side and its surface area increases, and the aperture of the deformation holes increases, thereby connecting the fluid in the active chamber to the external environment; when the pressure difference between the active chamber and the external environment is less than the preset threshold, the elastic membrane maintains a tightened state, and the aperture of the deformation holes shrinks to a size sufficient to block the connection between the fluid in the active chamber and the external environment.

[0006] Preferably, the elastic membrane is an integrally formed structure.

[0007] Preferably, the surface of the elastic membrane facing the active chamber is provided with protrusions and / or grooves, thereby forming a rough surface.

[0008] Preferably, the elastic membrane is an elastic fiber woven structure.

[0009] Preferably, the deformation holes are the gaps between the intersecting elastic fibers.

[0010] The present invention also provides another pressure-adjustable earphone, comprising: two earpieces, each earpiece including a housing that defines an active chamber. When the user wears the earpiece, the active chamber acoustically couples the sound output side of the speaker to the user's ear. The housing also defines a fluid passage that connects the active chamber to the external environment of the earpiece; further comprising a selection component, the selection component is disposed on the housing and outside the fluid passage; the selection component includes a covering wall, a through hole, and a breathing hole. By relative movement between the selection component and the housing, one of the following three modes can be selected: fluid blocking between the active chamber and the external environment through the covering wall, fluid connection between the active chamber and its external environment through the through hole, and selective fluid connection between the active chamber and its external environment through the breathing hole.

[0011] Preferably, the breathing hole is configured to selectively connect the fluid in the active chamber to the external environment in response to pressure changes inside and outside the active chamber, thereby balancing the pressure between the active chamber and the external environment.

[0012] Preferably, the breathing hole is a hole covered by an elastic membrane with deformation holes; when the pressure difference between the active chamber and the external environment is greater than or equal to a preset threshold, the elastic membrane expands towards the low-pressure side and its surface area increases, and the aperture of the deformation holes increases, thereby connecting the fluid in the active chamber to the external environment; when the pressure difference between the active chamber and the external environment is less than the preset threshold, the elastic membrane maintains a tightened state, and the aperture of the deformation holes shrinks to a size sufficient to block the connection between the fluid in the active chamber and the external environment.

[0013] Preferably, the elastic membrane is an integrally formed structure, and the surface of the elastic membrane facing the active chamber is provided with protrusions and / or grooves, thereby forming a rough surface.

[0014] Preferably, the elastic membrane is an elastic fiber woven structure, and the deformation holes are the gaps between the staggered elastic fibers.

[0015] Preferably, the selection component is slidably restricted on the housing and is located outside the fluid passage.

[0016] Preferably, a limiting mechanism is provided between the selection component and the housing, which can limit the relative movement of the selection component with respect to the housing, so as to maintain one of the three modes.

[0017] Preferably, a sealing mechanism is provided between the selection component and the housing, which can limit the fluid in the active chamber to communicate with the external environment only through the through hole or the breathing hole.

[0018] Preferably, a first mark is provided on the outer surface of the housing corresponding to the fluid passage; a second mark is provided on the outer surface of the selection component corresponding to the through hole and the breathing hole; when the first mark is aligned with the second mark, the through hole or the breathing hole is exactly aligned with the fluid passage.

[0019] The present invention provides a pressure-adjustable earphone, including: two earpieces, each earpiece includes a housing, the housing defines an active chamber, and when the user wears the earpiece, the active chamber acoustically couples the sound output side of the speaker to the user's ear; further including a breathing mechanism, the breathing mechanism is arranged on the fluid passage connecting the active chamber and the external environment of the earpiece, and the breathing mechanism is configured to selectively connect the fluid in the active chamber to the external environment in response to the pressure change inside and outside the active chamber, so as to balance the pressure between the active chamber and the external environment, realize the automatic dynamic adjustment of the air pressure in the ear canal, improve the wearing comfort of the user, and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic internal structure diagram of a pressure-adjustable earphone according to an embodiment of the present invention.

[0021] Figure 2 For the present invention Figure 1 It is a schematic diagram of the pressure equalization principle of the pressure-adjustable earphone according to the embodiment of the present invention.

[0022] Figure 3 It is a schematic internal structure diagram of another pressure-adjustable earphone according to an embodiment of the present invention.

[0023] Figure 4 For the present invention Figure 3 External structural schematic diagram of the pressure-adjustable earphone according to the embodiment of the present invention.

[0024] Wherein, earpiece - 100, housing - 101, speaker - 102, active chamber - 103, fluid passage - 104, first mark - 105, user - 200, external environment - 300, breathing mechanism - 400, elastic membrane - 401, deformation hole - 402, selection component - 500, covering wall - 501, through hole - 502, breathing hole - 503, second mark - 504. Detailed implementation manners

[0025] In order to address the problem that it is difficult to flexibly adjust the internal and external air pressures of existing earphones, the pressure-adjustable earphone provided by the present invention is realized through the following technical solutions:

[0026] Embodiment 1:

[0027] This embodiment provides a pressure-adjustable earphone. Please refer to Figure 1 , which includes: two earpieces 100, each of the earpieces 100 includes a housing 101, the housing 101 defines an active chamber 103, and when the user 200 wears the earpiece 100, the active chamber 103 acoustically couples the sound output side of the speaker 102 to the ear of the user 200; further includes a breathing mechanism 400, the breathing mechanism 400 is arranged on the fluid passage 104 where the active chamber 103 communicates with the external environment 300 of the earpiece 100, and the breathing mechanism 400 is configured to selectively connect the fluid in the active chamber 103 to the external environment 300 in response to the pressure change inside and outside the active chamber 103, so as to be able to balance the pressure between the active chamber 103 and the external environment 300.

[0028] Specifically, the breathing mechanism 400 is an elastic membrane 401 with a deformation hole 402. Please refer to Figure 2; When the pressure difference between the active chamber 103 and the external environment 300 is greater than or equal to a preset threshold, the elastic membrane 401 expands towards the low-pressure side and its surface area increases, and the aperture of the deformation hole 402 increases, thereby connecting the fluid in the active chamber 103 to the external environment 300; when the pressure difference between the active chamber 103 and the external environment 300 is less than the preset threshold, the elastic membrane 401 maintains a tightened state, and the aperture of the deformation hole 402 shrinks to a size sufficient to block the connection between the fluid in the active chamber 103 and the external environment 300. Moreover, the greater the pressure difference between the active chamber 103 and the external environment 300 is greater than the preset threshold, the greater the degree of expansion of the elastic membrane 401 towards the low-pressure side and the increase in its surface area, and the greater the degree of increase in the aperture of the deformation hole 402, thereby more quickly connecting the fluid in the active chamber 103 to the external environment 300, thus balancing the pressure between the active chamber 103 and the external environment 300, achieving automatic dynamic rapid response without the need for complex structures and control programs.

[0029] Specifically, the elastic membrane 401 is an integrally formed structure.

[0030] Specifically, the surface of the elastic membrane 401 facing the active chamber 103 is provided with protrusions and / or grooves, thereby forming a rough surface. This design can reduce the vibration of the elastic membrane caused by sound waves in the active chamber 103, so as not to affect the audio playback effect.

[0031] Specifically, the elastic membrane 401 is a woven structure of elastic fibers.

[0032] Specifically, the deformation hole 402 is the gap between the intersecting elastic fibers. This design can reduce the vibration of the elastic membrane caused by sound waves in the active chamber 103, so as not to affect the audio playback effect.

[0033] Specifically, the elastic membrane 401 is made of an organic composite material.

[0034] Specifically, the earphone is a headphone or an in-ear earphone.

[0035] Specifically, there are multiple groups of the fluid passage 104 and the breathing mechanism 400 therein, which are evenly distributed on the housing 101.

[0036] This embodiment provides a pressure-adjustable earphone, comprising: two earpieces 100, each earpiece 100 includes a housing 101, the housing 101 defines an active chamber 103, when the user 200 wears the earpiece 100, the active chamber 103 acoustically couples the sound output side of the speaker 102 to the ear of the user 200; further comprising a breathing mechanism 400, the breathing mechanism 400 is arranged on a fluid passage 104 that communicates the active chamber 103 with the external environment 300 of the earpiece 100, the breathing mechanism 400 is configured to selectively communicate the fluid in the active chamber 103 to the external environment 300 in response to the pressure change inside and outside the active chamber 103, so as to be able to balance the pressure between the active chamber 103 and the external environment 300, realize automatic dynamic adjustment of the air pressure in the ear canal, improve the wearing comfort of the user 200, and has a simple structure.

[0037] Embodiment 2:

[0038] This embodiment provides another pressure-adjustable earphone, please refer to Figure 3 , Figure 4 , comprising: two earpieces 100, each earpiece 100 includes a housing 101, the housing 101 defines an active chamber 103, when the user 200 wears the earpiece 100, the active chamber 103 acoustically couples the sound output side of the speaker 102 to the ear of the user 200, the housing 101 also defines a fluid passage 104 that communicates the active chamber 103 with the external environment 300 of the earpiece 100; further comprising a selection component 500, the selection component 500 is arranged on the housing 101 and located outside the fluid passage 104; the selection component 500 includes a covering wall 501, a through hole 502, and a breathing hole 503, by the relative movement between the selection component 500 and the housing 101, one of the following three modes can be selected: fluid blocking is achieved between the active chamber 103 and the external environment 300 through the covering wall 501, fluid communication is achieved between the active chamber 103 and its external environment 300 through the through hole 502, and selective fluid communication is achieved between the active chamber 103 and its external environment 300 through the breathing hole 503.

[0039] Specifically, the breathing hole 503 is configured to selectively communicate the fluid in the active chamber 103 to the external environment 300 in response to the pressure change inside and outside the active chamber 103, so as to balance the pressure between the active chamber 103 and the external environment 300.

[0040] Specifically, the breathing hole 503 is a hole covered by an elastic membrane with a deformed hole; when the pressure difference between the active chamber 103 and the external environment 300 is greater than or equal to a preset threshold, the elastic membrane expands towards the low-pressure side and its surface area increases, and the aperture of the deformed hole increases, thereby connecting the fluid in the active chamber 103 to the external environment 300; when the pressure difference between the active chamber 103 and the external environment 300 is less than the preset threshold, the elastic membrane maintains a tightened state, and the aperture of the deformed hole shrinks to a size sufficient to block the connection between the fluid in the active chamber 103 and the external environment 300. Moreover, the greater the pressure difference between the active chamber 103 and the external environment 300 is greater than the preset threshold, the greater the degree of expansion of the elastic membrane towards the low-pressure side and the increase in its surface area, and the greater the degree of increase in the aperture of the deformed hole, thereby more quickly connecting the fluid in the active chamber 103 to the external environment 300, thereby balancing the pressure between the active chamber 103 and the external environment 300, achieving automatic dynamic rapid response without complex structures and control programs.

[0041] Specifically, the elastic membrane is an integrally formed structure. The surface of the elastic membrane facing the active chamber 103 is provided with protrusions and / or grooves, thereby forming a rough surface. This design can reduce the vibration of the elastic caused by sound waves in the active chamber 103, so as not to affect the audio playback effect.

[0042] Specifically, the elastic membrane is an elastic fiber woven structure. The deformed hole is the gap between the staggered elastic fibers. This design can reduce the vibration of the elastic caused by sound waves in the active chamber 103, so as not to affect the audio playback effect.

[0043] Specifically, the elastic membrane 401 is made of an organic composite material.

[0044] Specifically, the earphone is a headphone or an in-ear earphone.

[0045] Specifically, there are multiple breathing holes 503, and each breathing hole 503 has a different preset threshold. Specifically, the breathing holes 503 are arranged in sequence according to the size of the preset threshold.

[0046] Specifically, the selection component 500 is slidably restricted on the housing 101 and is located outside the fluid passage 104.

[0047] Specifically, a limiting mechanism is provided between the selection component 500 and the housing, which can limit the relative movement of the selection component 500 relative to the housing 101, thereby maintaining one of the three modes.

[0048] Specifically, a sealing mechanism is provided between the selection component 500 and the housing 101, which can limit the fluid in the active chamber 103 to be communicated with the external environment 300 only through the through hole 502 or the breathing hole 503.

[0049] Specifically, a first mark 105 is provided on the outer surface of the housing 101 corresponding to the fluid passage 104; a second mark 504 is provided on the outer surface of the selection component corresponding to the through hole and the breathing hole; when the first mark 105 is aligned with the second mark 504, the through hole 502 or the breathing hole 503 is exactly aligned with the fluid passage 104.

[0050] Another pressure-adjustable earphone is proposed in this embodiment, including: two earpieces 100, each earpiece 100 includes a housing 101, the housing 101 defines an active chamber 103, when the user 200 wears the earpiece 100, the active chamber 103 acoustically couples the sound output side of the speaker 102 to the ear of the user 200, and the housing 101 also defines a fluid passage 104 for communicating the active chamber 103 with the external environment 300 of the earpiece 100; it also includes a selection component 500, the selection component 500 is arranged on the housing 101 and is located outside the fluid passage 104; the selection component 500 includes a covering wall 501, a through hole 502, and a breathing hole 503, through the relative movement between the selection component 500 and the housing 101, one of the following three modes can be selected: the fluid between the active chamber 103 and the external environment 300 is blocked by the covering wall 501, the fluid between the active chamber 103 and its external environment 300 is communicated through the through hole 502, and the fluid between the active chamber 103 and its external environment 300 is selectively communicated through the breathing hole 503; on the basis of the previous embodiment, two modes of completely closing and completely opening the active chamber 103 are added, which can adapt to more external environments, and the control is convenient and the structure is simple.

[0051] It should be noted that the above content is a further detailed description of the present invention in combination with specific embodiments, and it cannot be determined that the specific embodiments of the present invention are limited to this. Under the guidance of the above embodiments, those skilled in the art can make various improvements and deformations on the basis of the above embodiments, and these improvements or deformations fall within the protection scope of the present invention.

Claims

1. A pressure-adjustable earphone, comprising: two earpieces, each earpiece comprising a housing that defines an active chamber, the active chamber acoustically coupling the sound output side of a speaker to the user's ear when the user wears the earpiece; characterized in that it further comprises a breathing mechanism arranged on the fluid passage through which the active chamber communicates with the external environment of the earpiece, the breathing mechanism being configured to selectively communicate the fluid in the active chamber to the external environment in response to a pressure change inside and outside the active chamber, so as to be able to balance the pressure between the active chamber and the external environment; the breathing mechanism is an elastic membrane with deformation holes; when the pressure difference between the active chamber and the external environment is greater than or equal to a preset threshold, the elastic membrane expands towards the low-pressure side and the surface area increases, and the aperture of the deformation hole increases, thereby communicating the fluid in the active chamber to the external environment; when the pressure difference between the active chamber and the external environment is less than the preset threshold, the elastic membrane maintains a tightened state, and the aperture of the deformation hole shrinks to a size sufficient to block the communication between the fluid in the active chamber and the external environment.

2. The pressure-adjustable earphone according to claim 1, characterized in that the elastic membrane is an integrally formed structure.

3. The pressure-adjustable earphone according to claim 2, characterized in that protrusions and / or grooves are provided on the surface of the elastic membrane facing the active chamber side, so as to form a rough surface.

4. The pressure-adjustable earphone according to claim 1, characterized in that the elastic membrane is an elastic fiber woven structure.

5. The pressure-adjustable earphone according to claim 4, characterized in that the deformation holes are gaps between the intersecting elastic fibers.

6. A pressure-adjustable earphone, comprising: Two earphones, each earphone comprising a housing which defines an active chamber. When the user wears the earphone, the active chamber acoustically couples the sound output side of the speaker to the user's ear. The housing also defines a fluid passage through which the active chamber communicates with the external environment of the earphone. It is characterized in that it further comprises a selection component which is arranged on the housing and is located outside the fluid passage. The selection component includes a covering wall, a through hole, and a breathing hole. By the relative movement between the selection component and the housing, one of the following three modes can be selected: fluid blockage is achieved between the active chamber and the external environment through the covering wall, fluid communication is achieved between the active chamber and its external environment through the through hole, and selective fluid communication is achieved between the active chamber and its external environment through the breathing hole. The breathing hole is configured to selectively communicate the fluid in the active chamber to the external environment in response to the pressure change inside and outside the active chamber, so as to balance the pressure between the active chamber and the external environment. The breathing hole is a hole covered by an elastic membrane with a deformed hole. When the pressure difference between the active chamber and the external environment is greater than or equal to a preset threshold, the elastic membrane expands towards the low-pressure side and the surface area increases, and the aperture of the deformed hole increases, so as to communicate the fluid in the active chamber to the external environment. When the pressure difference between the active chamber and the external environment is less than the preset threshold, the elastic membrane maintains a tightened state, and the aperture of the deformed hole shrinks to a size sufficient to block the communication between the fluid in the active chamber and the external environment.

7. The pressure-adjustable earphone according to claim 6, characterized in that the elastic membrane is an integrally formed structure, and the surface of the elastic membrane facing the active chamber is provided with protrusions and / or grooves, so as to form a rough surface.

8. The pressure-adjustable earphone according to claim 6, characterized in that the elastic membrane is an elastic fiber woven structure, and the deformed hole is the gap between the intersecting elastic fibers.

9. The pressure-adjustable earphone according to claim 6, characterized in that the selection component is slidably restricted on the housing and is located outside the fluid passage.

10. The pressure-adjustable earphone according to claim 9, characterized in that a limiting mechanism is provided between the selection component and the housing, which can limit the relative movement of the selection component with respect to the housing, so as to maintain one of the three modes.

11. The pressure-adjustable earphone according to claim 9, characterized in that a sealing mechanism is provided between the selection component and the housing, which can limit the fluid in the active chamber to only communicate with the external environment through the through hole or the breathing hole.

12. The pressure-adjustable earphone according to claim 9, characterized in that a first mark is provided on the outer surface of the housing corresponding to the fluid passage; a second mark is provided on the outer surface of the selection component corresponding to the through hole and the breathing hole; when the first mark is aligned with the second mark, the through hole or the breathing hole is exactly aligned with the fluid passage.

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