WO2022241651A1 - 降噪耳垫、降噪耳罩以及头戴式降噪耳机 - Google Patents

降噪耳垫、降噪耳罩以及头戴式降噪耳机 Download PDF

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Publication number
WO2022241651A1
WO2022241651A1 PCT/CN2021/094424 CN2021094424W WO2022241651A1 WO 2022241651 A1 WO2022241651 A1 WO 2022241651A1 CN 2021094424 W CN2021094424 W CN 2021094424W WO 2022241651 A1 WO2022241651 A1 WO 2022241651A1
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WO
WIPO (PCT)
Prior art keywords
ear pad
sound
noise
main body
earpad
Prior art date
Application number
PCT/CN2021/094424
Other languages
English (en)
French (fr)
Inventor
余新
贡维勇
吴海全
Original Assignee
深圳市冠旭电子股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 深圳市冠旭电子股份有限公司 filed Critical 深圳市冠旭电子股份有限公司
Priority to CN202180001185.6A priority Critical patent/CN113475096B/zh
Priority to JP2023541880A priority patent/JP2024502374A/ja
Priority to US18/271,304 priority patent/US20240071352A1/en
Priority to PCT/CN2021/094424 priority patent/WO2022241651A1/zh
Priority to EP21940108.0A priority patent/EP4262231A4/en
Publication of WO2022241651A1 publication Critical patent/WO2022241651A1/zh

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups

Definitions

  • the present application relates to the technical field of earphones, and more specifically, to a noise-reducing ear pad, a noise-reducing earmuff, and a head-mounted noise-reducing earphone.
  • the noise reduction ear pad is connected to the connecting surface of the mounting part, and includes a ring-shaped ear pad body made of porous or porous flexible material, a cloth cover covering the ear pad body, and a cloth cover between the ear pad body and the cloth cover.
  • the sound insulation cover between the ear pads and the connecting surface together form a sealed sound insulation space with an open mouth structure.
  • the cloth cover is made of cloth to make the noise reduction ear pads more comfortable when they contact the human skin, and the sound insulation cover is used to reduce noise.
  • the external sound enters the sealed space through the cloth cover and the main body of the ear pad, and is made of leather or soft rubber.
  • the main body of the ear pad, the cloth cover and the sound insulation cover are all independent parts. Among them, during the assembly process, the cloth cover
  • the noise reduction cover and the sound insulation cover require separate assembly steps, that is, the assembly of the noise reduction ear pads requires two assembly steps.
  • One of the purposes of the embodiments of the present application is to provide a noise-reducing earpad, a noise-reducing earmuff, and a head-mounted noise-reducing earphone, which aims to reduce the assembly steps of the noise-reducing earpad and improve the assembly efficiency of the noise-reducing earpad .
  • a noise-reducing ear pad connected to the connecting surface of the ear pad support, and comprising a ring-shaped ear pad main body made of a multi-void flexible material or a foam flexible material and connected to the connecting surface, the ear pad main body and the connecting surface jointly form a sealed soundproof space with an open mouth structure
  • the noise-reducing ear pads also include an ear pad cover
  • the ear pad cover includes a cloth cover that at least covers the exposed outer surface of the ear pad main body and is made of cloth;
  • a sealing and sound-insulating film attached to the side of the cloth cover facing the ear pad body and made of soft rubber. corresponding to the surface.
  • the laying area of the airtight sound-insulating film also corresponds to the outer surface of the earpad main body opposite to the connecting surface;
  • the laying area of the sealing and sound-insulating film corresponds to the inner surface of the cloth cover, and at least one penetrating arrangement is opened in the laying area of the sealing and sound-insulating film opposite to the sealed and sound-insulating space and to the connecting surface. of stomata.
  • the thickness of the sealing and sound-insulating film is 0.005-0.1 mm.
  • the side of the airtight sound-insulating membrane away from the main body of the ear pad has an embedded layer located in the cloth cover.
  • the cloth cover covers the main body of the ear pad.
  • the present application also provides a noise-reducing ear pad, which is connected to the connecting surface of the ear pad support, and includes a ring-shaped ear pad main body made of multi-void flexible material or foam flexible material and connected to the connecting surface, the ear pad main body and the connecting surface
  • the connecting surfaces jointly form a sealed and sound-insulating space with an open mouth structure
  • the noise-reducing ear pad also includes an ear pad cover
  • the ear pad cover includes at least the exposed outer surface of the ear pad main body and is made of cloth
  • the cloth cover and the sealing and sound-insulating film made of soft glue arranged in the cloth cover, the laying area of the sealing and sound-insulating film corresponds to the outer surface of the ear pad main body which is opposite to the sealed and sound-insulating space .
  • the laying area of the airtight sound-insulating film also corresponds to the outer surface of the earpad main body opposite to the connecting surface;
  • the laying area of the sealing and sound-insulating film corresponds to the inner surface of the cloth cover, and at least one penetrating arrangement is opened in the laying area of the sealing and sound-insulating film opposite to the sealed and sound-insulating space and to the connecting surface. of stomata.
  • the thickness of the sealing and sound-insulating film is 0.005-0.1 mm.
  • the present application also provides a noise reduction earmuff, including the above noise reduction earpad.
  • the present application also provides a head-mounted noise-canceling earphone, including the above-mentioned noise-canceling ear pad.
  • the beneficial effect of the embodiment of the present application is that: in the assembly process, after the ear pad cover is assembled to the ear pad body, the noise reduction ear pad assembly is completed, that is, only one assembly step is required to complete the noise reduction ear pad assembly , Compared with the prior art, the assembly steps of the noise reduction ear pads are reduced, the assembly efficiency of the noise reduction ear pads is improved, and compared with the prior art, the materials used can be reduced, and the manufacturing cost of the noise reduction ear pads is reduced.
  • the fabric of the cloth cover can be microfiber, knitted fabric, etc.
  • there are differences in the material selection, weaving process, manufacturing control, etc. of the cloth cover. Density, and thickness are different, and the above-mentioned characteristics of the batches of cloth produced at different times are more different, so that the airtightness of the airtight and sound-proof space formed by the cloth cover is greatly different, and it cannot match the active noise reduction filter and algorithm.
  • the effect of the noise-reducing ear pads produced is very different, which limits the application of the noise-reducing ear pads in the head-mounted noise-cancelling headphones.
  • the sealed sound-insulating film keeps the air pressure in the sealed and sound-insulated space stable in various relative states, making the The frequency response curve in the sealed sound-proof space is smooth, the fluctuation range is small, and the consistency is high, which makes the debugging of the noise reduction function more efficient, shorter in time, and better in effect. Satisfy the diverse and individual needs, and promote the development of the technical fields of noise-canceling ear pads, noise-canceling earmuffs and head-mounted noise-canceling headphones.
  • FIG. 1 is a perspective view of a noise reduction ear pad provided in Embodiment 1 of the present application;
  • Fig. 2 is a three-dimensional cross-sectional view of the noise-reducing earpad provided in Embodiment 1 of the present application;
  • Fig. 3 is a schematic diagram of an enlarged structure of A in Fig. 2;
  • Fig. 4 is an exploded view of the noise reduction earpad provided in Embodiment 1 of the present application.
  • the embodiment of the present application provides a noise reduction earpad 100 .
  • the noise reduction earpad 100 is connected to the connection surface 201 of the earpad support 200, wherein, if the noise reduction earpad 100 is applied to a noise-proof earmuff, then the earpad support 200 is a connecting frame of the noise-proof earmuff, and as The noise-canceling earpad 100 is used for the noise-canceling headphone, and the ear-pad holder 200 is the horn cover of the noise-canceling headphone.
  • the noise reduction ear pad 100 includes an ear pad main body 110 and an ear pad cover 120 .
  • the ear pad main body 110 is made of multi-void flexible material or foam flexible material and is ring-shaped and connected to the connecting surface.
  • the deformed stacking material, foam flexible material includes but not limited to sponge, etc., can be open type or non-closed cell type.
  • the earpad main body 110 and the connecting surface 201 together form a sealed soundproof space 101 with an open mouth structure, wherein the earpad main body 110 plays a role in shaping the overall shape of the noise-reducing earpad 100, that is, the shape of the earpad main body 110 is roughly equivalent to reducing the noise.
  • the shape of the noise-reducing ear pad 100, and during use, the ear pad main body 110 is adaptively compressed and deformed with the head of the human body when the noise-reducing ear pad 100 touches the head of the human body.
  • the ear pad cover 120 includes a cloth cover 121 that covers at least the exposed outer surface of the ear pad body 110 and is made of cloth, and a sealing and sound-insulating film 122 that is attached to the side of the cloth cover 121 facing the ear pad body 110 and is made of soft rubber.
  • the laying area of the airtight soundproof film 122 corresponds to the outer surface of the earpad main body 110 opposite to the airtight soundproof space 101 .
  • the noise reduction ear pad 100 will interfere with the human head, and the part of the noise reduction ear pad 100 in contact with the human head will be adaptively deformed, so that the sealed soundproof space 101 is isolated from the external space and forms a closed space.
  • the noise reduction ear pad 100 The ear pad cover 120 is in contact with the head of the human body, and because the cloth is woven from silk, there are micro gaps between the silk and the silk have better air permeability, so based on this structure, the user has better air permeability when using it.
  • the noise-reducing ear pad 100 will touch the human head, since only the outer surface of the ear pad main body 110 opposite to the sealed sound-insulating space 101 will allow the sound to propagate to the sealed sound-insulating space 101, Therefore, the laying area of the airtight and sound-insulating film 122 only needs to correspond to the outer surface of the earpad main body 110 opposite to the airtight and sound-insulating space 101 to limit sound transmission through the outer surface of the earpad main body 110 opposite to the airtight and sound-insulating space 101 into the sealed sound-insulating space 101, thereby realizing the noise-reducing function of the noise-reducing earpad 100.
  • the assembly of the noise reduction ear pad 100 is completed, that is, only one assembly step is required to complete the assembly of the noise reduction ear pad 100 , compared with the prior art, the assembly steps of the noise reduction ear pad 100 are reduced, and the assembly efficiency of the noise reduction ear pad 100 is improved.
  • the fabric of the cloth cover 121 can be microfiber, knitted cloth, etc.
  • the cloth cover 121 has differences in material selection, weaving process, manufacturing control, etc. Pore size, density, thickness and other characteristics are different, and the above-mentioned characteristics of the batches of cloth produced at different times are more different, so that the airtightness of the sealed and sound-proof space 101 formed by the cloth cover 121 is greatly different, and it cannot match the active noise reduction filter. and algorithm, the effect of the noise-reducing ear pads 100 is very different, which limits the application of the noise-reducing ear pads 100 in the head-mounted noise-cancelling headphones.
  • the sealed sound-insulating film 122 keeps the air in the sealed sound-insulating space 101
  • the various relative states of the pressure are stable, making the frequency response curve in the sealed sound-proof space 101 smooth, with a small fluctuation range and high consistency, making the debugging of the noise reduction function more efficient, shorter in time, and better in effect, and the range of material selection for the cloth cover 121 is expanded Any kind of cloth can better meet the diverse and individual needs, and promote the development of the technical fields of the noise-reducing earpad 100, the noise-reducing earmuff, and the noise-reducing earphone.
  • the noise-reducing earpad 100 when the noise-reducing earpad 100 is applied to a head-mounted noise-cancelling earphone, since the laying area of the sealed sound-insulating film 122 does not restrict the transmission of sound from the sealed and sound-insulated space 101 to the earpad main body 110, thus, The space occupied by the ear pad main body 110 can also become the sound field space when the noise-cancelling headphones play sound, which is beneficial to improve the stereo effect of the noise-cancelling headphones.
  • the ear pad main body 110, the cloth cover 121 and the sound insulation cover are all independent parts. Due to the material characteristics of the cover, the two sides of the gap are prone to misalignment, so that the length of the gap will expand rapidly, and if the length of the gap is too large, the sound insulation sleeve will form a large sound leakage port, and the sound leakage port will allow sound transmission , thereby reducing the sound insulation effect of the sound insulation sleeve. In order to make the soundproof cover less prone to cracks during use, it is necessary to increase the thickness of the soundproof cover under the cavity where the soundproof cover has achieved sound insulation. The thickness of the soundproof cover is usually greater than the thickness of the cloth cover 121, which leads to the use of materials increase, thereby increasing the manufacturing cost of the noise reduction ear pad 100 .
  • the sealing and sound-insulating film 122 even if there is a breach in the sealing and sound-insulating film 122, since the sealing and sound-insulating film 122 is attached to the side of the cloth cover 121 facing the ear pad body 110, the two sides of the breach of the sealing and sound-insulating film 122 will not be affected by the restriction of the cloth cover 121. Misalignment will occur, and the cloth cover 121 also limits the expansion of the length of the slit of the sealed sound-insulating film 122, so that the sealed sound-insulating film 122 will not form a sound leak. Under the functioning cavity, it is no longer necessary to increase the thickness of the sealing and sound-insulating film 122. The thickness of the sealing and sound-insulating film 122 will be smaller than the thickness of the cloth cover 121. Compared with the prior art, the materials used are reduced, and the cost of the noise-reducing ear pad 100 is reduced. manufacturing cost.
  • the thickness of the sealing and sound-insulating film 122 is 0.005-0.1 mm.
  • the laying area of the airtight and sound-insulating film 122 also corresponds to the outer surface of the earpad main body 110 opposite to the connecting surface 201 .
  • the part of the noise reduction ear pad 100 close to the human head will be deformed, so that the ear pad main body 110 faces the sealed soundproof space 101 and There is a probability of outward turning on the side of the human head close to it. Therefore, when the side of the human head of the ear pad main body 110 facing and close to the sealed and sound-insulating space 101 is turned outward, the laying area of the sealed sound-insulating film 122 is only in contact with the sealed sound-insulating space 101.
  • the outer surface of the ear pad main body 110 is opposite to the sealed and sound-insulating space 101, and the sound outside the sealed and sound-insulating space 101 is transmitted into the sealed and sound-insulating space 101 through the valgus side of the ear pad main body 110, which affects the sound of the noise-reducing ear pad 100. Noise reduction effect.
  • the laying area of the sealed and sound-insulating film 122 is also corresponding to the outer surface of the ear pad main body 110 opposite to the connection surface 201, that is, the ear pad main body 110 faces the sealed and sound-insulated space 101 and The side of the head of an approaching human body is turned outwards, and the sound-proof membrane 122 can still limit the transmission of sound into the sound-proof space 101 through the earpad main body 110 .
  • the laying area of the sealing and sound-insulating film 122 corresponds to the inner surface of the cloth cover 121, and the sealing and sound-insulating film 122 is opposite to the sealed and sound-insulating space 101 and to the connecting surface
  • the laying area opposite to 201 is provided with at least one through air hole.
  • the space enclosed by the airtight sound-insulating film 122 becomes a closed space and forms a structure similar to a balloon, which will cause the ear pad main body 110 to be unable to adapt to the human head during use.
  • the space formed by the sealed sound-insulating film 122 becomes a closed space, so that when the noise-reducing earpad 100 is deformed under pressure, the air in the sealed and sound-insulating film 122 will be discharged through the pores, and when the deformation of the noise-reducing earpad 100 recovers, the external The gas will enter the space enclosed by the airtight and sound-insulating film 122 through the air holes, so as to ensure the normal use of the noise reduction earpad 100 .
  • the side of the sealed sound-insulating film 122 facing away from the earpad main body 110 has an insert layer located in the cloth cover 121, that is, the insert layer is mixed into the cloth cover 121 to seal the sound-insulating film.
  • the part of 122 away from the ear pad main body 110 is placed into the cloth cover 121, and there is a micro gap between the inner threads of the inserted layer in the cloth cover 121, and the silk in the cloth cover 121 can firmly attach the airtight and sound-insulating membrane 122 to the cloth cover 121.
  • the sleeve 121 does not need other adhesive materials such as adhesive glue to achieve attachment.
  • the inner surface of the cloth cover 121 can be made first, and then the molten glue is laid on the inner surface of the cloth cover 121. The lower side of the glue will penetrate into the cloth cover 121. After the molten glue is solidified, the sealing and sound-insulating film 122 will be formed and attached to the cloth cover 121. The sealing and sound-insulating film 122 can also be directly hot-pressed onto the cloth cover 121. The pressure makes the sealing and sound-insulating film 122 produce a certain melting characteristic, and under the action of pressure, a part of the sealing and sound-insulating film 122 will penetrate into the cloth cover 121 .
  • the overlapping part of the embedded layer and the cloth cover 121 is the cloth-film mixed layer 123 .
  • the difference between this embodiment and the first embodiment is that the sealing and sound-insulating film 122 is arranged in the cloth cover 121 , that is, the sealing and sound-insulating film 122 is entirely placed in the cloth cover 121 .
  • the technical effect achieved by this embodiment includes the technical effect achieved by Embodiment 1, which will not be repeated here.
  • the airtight and sound-insulating membrane 122 is entirely located in the cloth cover 121, and there is a slight gap between the inner wires and the wires.
  • the wires in the cloth cover 121 can firmly fix the airtight and sound-insulating film 122 to the cloth cover 121 without any other adhesive glue. material for attachment.
  • the inner surface of the cloth cover 121 can be made first, and then the molten glue is laid on the inner surface of the cloth cover 121. Under the action of gravity, the lower side of the molten glue will penetrate In the cloth cover 121, the sealed and sound-insulating film 122 is formed after the glue in the molten state is solidified.
  • the laying area of the airtight and sound-insulating film 122 also corresponds to the outer surface of the earpad main body 110 opposite to the connecting surface 201 .
  • the airtight and sound-insulating film 122 has at least one air hole arranged through it in the laying area that is opposite to the airtight and sound-insulating space 101 and opposite to the connection surface 201 .
  • the thickness of the sealing and sound-insulating film 122 is 0.005-0.1 mm.
  • the present application also proposes a noise-reducing earmuff, which includes a noise-reducing ear pad 100.
  • the specific structure of the noise-reducing ear pad 100 refers to the above-mentioned embodiments. All technical solutions, therefore, also have all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here.
  • the present application also proposes a head-mounted noise-cancelling earphone, which includes a noise-cancelling earpad 100.
  • the specific structure of the noise-cancelling earpad 100 refers to the above-mentioned embodiment. Since the head-mounted noise-cancelling earphone adopts All the technical solutions of all the above-mentioned embodiments have been described, so it also has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not be repeated here.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Headphones And Earphones (AREA)

Abstract

一种降噪耳垫（100）、降噪耳罩以及头戴式降噪耳机，其中，降噪耳垫（100）包括耳垫主体（110）和耳垫套（120），耳垫主体（110）由多空隙柔性材料或泡沫柔性材料制成并呈环形且连接于连接面（201），耳垫主体（110）与连接面（201）共同形成呈开口腔结构的密封隔音空间（101），耳垫套（120）包括至少包覆耳垫主体（110）外露的外表面并由布料制成的布套（121）以及附着于布套（121）朝向耳垫主体（110）的侧面并由软胶制成的密封隔音膜（122），密封隔音膜（122）的铺设区域与耳垫主体（110）的与密封隔音空间（101）相背的外表面相对应。降噪耳垫（100）在装配过程中仅需一个装配步骤，减少了降噪耳垫（100）的装配步骤，提高了降噪耳垫（100）的装配效率。

Description

降噪耳垫、降噪耳罩以及头戴式降噪耳机 技术领域
本申请涉及耳机技术领域，更为具体地，涉及一种降噪耳垫、降噪耳罩以及头戴式降噪耳机。
 背景技术
降噪耳垫连接于安装件的连接面，并包括由多空隙或多孔隙的柔性材料制成且呈环形的耳垫主体、包覆耳垫主体的布套以及设于耳垫主体和布套之间的隔音套，耳垫主体与连接面共同形成呈开口腔结构的密封隔音空间，布套由布料制成，以使降噪耳垫接触人体皮肤时的舒适性，而隔音套则用于减少外部的声音经布套和耳垫主体进入到密封空间，并由皮料或软胶制成，耳垫主体、布套和隔音套均是相互独立的部件，其中，在装配过程中，布套和隔音套分别需要独立的装配步骤，也即是降噪耳垫的装配需要经过两个装配步骤。
技术问题
本申请实施例的目的之一在于：提供一种降噪耳垫、降噪耳罩以及头戴式降噪耳机，其旨在减少降噪耳垫的装配步骤，提高降噪耳垫的装配效率。
 技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
一种降噪耳垫，连接于耳垫支架的连接面，并包括由多空隙柔性材料或泡沫柔性材料制成并呈环形且连接于连接面的耳垫主体，耳垫主体与所述连接面共同形成呈开口腔结构的密封隔音空间，所述降噪耳垫还包括耳垫套，所述耳垫套包括至少包覆所述耳垫主体外露的外表面并由布料制成的布套以及附着于所述布套朝向所述耳垫主体的侧面并由软胶制成的密封隔音膜，所述密封隔音膜的铺设区域与所述耳垫主体的与所述密封隔音空间相背的外表面相对应。
可选地，所述密封隔音膜的铺设区域还与所述耳垫主体的与所述连接面相背的外表面相对应；
或，所述密封隔音膜的铺设区域与所述布套的内侧面相对应，所述密封隔音膜于既与所述密封隔音空间相对又与所述连接面相对的铺设区域至少开设有一个贯通设置的气孔。
可选地，所述密封隔音膜的厚度为0.005-0.1mm。
可选地，所述密封隔音膜的背离所述耳垫主体的侧面具有位于所述布套内的置入层。
可选地，所述布套包覆所述耳垫主体。
本申请还提供一种降噪耳垫，连接于耳垫支架的连接面，并包括由多空隙柔性材料或泡沫柔性材料制成并呈环形且连接于连接面的耳垫主体，耳垫主体与所述连接面共同形成呈开口腔结构的密封隔音空间，所述降噪耳垫还包括耳垫套，所述耳垫套包括至少包覆所述耳垫主体外露的外表面并由布料制成的布套以及设于所述布套内并由软胶制成的密封隔音膜，所述密封隔音膜的铺设区域与所述耳垫主体的与所述密封隔音空间相背的外表面相对应。
可选地，所述密封隔音膜的铺设区域还与所述耳垫主体的与所述连接面相背的外表面相对应；
或，所述密封隔音膜的铺设区域与所述布套的内侧面相对应，所述密封隔音膜于既与所述密封隔音空间相对又与所述连接面相对的铺设区域至少开设有一个贯通设置的气孔。
可选地，所述密封隔音膜的厚度为0.005-0.1mm。
本申请还提供一种降噪耳罩，包括如上所述的降噪耳垫。
本申请还提供一种头戴式降噪耳机，包括如上所述的降噪耳垫。
 有益效果
本申请实施例的有益效果在于：在装配过程中，将耳垫套装配到耳垫主体后，即完成了降噪耳垫装配，也即是仅需一个装配步骤即可完成降噪耳垫装配，相对于现有技术，减少了降噪耳垫的装配步骤，提高了降噪耳垫的装配效率，且相对于现有技术，还能减少用料，降低了降噪耳垫的制造成本。
此外，由于布套的布料可以是超细纤维、针织布等，因此，布套存在选材、编织工艺、制造控制等等差异，制作完成同批次的同一布类或不同布类形成的孔大小、疏密度、厚度不一等特性，而且不同时间生产的批次布类上述特性差异更大，从而使布套形成的密封隔音空间密封性差异大，无法匹配主动降噪滤波器及算法，做出来的降噪耳垫效果差异很大，限制了降噪耳垫在头戴式降噪耳机的应用，而基于此本申请，密封隔音膜保持密封隔音空间的空气压强各种相对状态稳定，使密封隔音空间内的频响曲线顺滑，波动范围小、一致性高，使得调试降噪功能更高效、时间短、效果更好，且布套选材范围扩大到任何的布类，能够更好地满足多样化和个性化需求，促使降噪耳垫、降噪耳罩以及头戴式降噪耳机技术领域向前发展。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
根据这些附图获得其他的附图。
图1是本申请实施例一提供的降噪耳垫的立体图；
图2是本申请实施例一提供的降噪耳垫的立体剖视图；
图3是图2中A的放大结构示意图；
图4是本申请实施例一提供的降噪耳垫的爆炸图。
附图标号说明：
标号 名称 标号 名称
100 降噪耳垫 101 密封隔音空间
110 耳垫主体    
120 耳垫套    
121 布套 122 密封隔音膜
123 布膜混合层    
200 耳垫支架    
201 连接面    
本发明的实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本申请。
实施例一
请参阅图1至图4，本申请实施例提供一种降噪耳垫100。
该降噪耳垫100连接于耳垫支架200的连接面201，其中，如降噪耳垫100是应用于防噪音耳罩，那么，耳垫支架200是防噪音耳罩的连接架，而如降噪耳垫100是用于头戴式降噪耳机，耳垫支架200则是头戴式降噪耳机的喇叭盖。
降噪耳垫100包括耳垫主体110和耳垫套120。
耳垫主体110由多空隙柔性材料或泡沫柔性材料的制成并呈环形且连接于连接面，多空隙柔性材料为由包括但不局限于棉花、纤维丝等堆叠形成的在压力作用下会发生形变的堆叠材料，泡沫柔性材料包括但不限于海绵等，可以是开口型，也可以是非闭孔型的。耳垫主体110与连接面201共同形成呈开口腔结构的密封隔音空间101，其中，耳垫主体110起到给降噪耳垫100整体定造型作用，即耳垫主体110的造型大致相当于降噪耳垫100的造型，且在使用过程中，耳垫主体110在降噪耳垫100抵触到人体头部时与人体头部适应性压缩形变。耳垫套120包括至少包覆耳垫主体110外露的外表面并由布料制成的布套121以及附着于布套121朝向耳垫主体110的侧面并由软胶制成的密封隔音膜122，密封隔音膜122的铺设区域与耳垫主体110的与密封隔音空间101相背的外表面相对应。
在使用过程中，首先，由于耳垫主体110是由多空隙柔性材料或泡沫柔性材料制成、布套121由布料制成以及密封隔音膜122由软胶制成，因此，在降噪耳垫100会抵触到人体头部，降噪耳垫100与人体头部接触的部分会适应性形变，使得密封隔音空间101与外部空间隔离开来，并形成一个密闭空间，其次，降噪耳垫100是通过耳垫套120与人体头部接触，而由于布料是由丝织造而成，丝与丝之间存在微缝隙具有较好的透气性，因此，基于此结构，使用者在使用时具有较好的舒适性，最后，在降噪耳垫100会抵触到人体头部后，由于仅有耳垫主体110的与密封隔音空间101相背的外表面还会允许声音传播到密封隔音空间101，因此，密封隔音膜122的铺设区域仅需与耳垫主体110的与密封隔音空间101相背的外表面相对应即可限制声音经耳垫主体110的与密封隔音空间101相背的外表面传播到密封隔音空间101内，从而实现了降噪耳垫100的降噪作用。
基于此结构设计，在装配过程中，将耳垫套120装配到耳垫主体110后，即完成了降噪耳垫100装配，也即是仅需一个装配步骤即可完成降噪耳垫100装配，相对于现有技术，减少了降噪耳垫100的装配步骤，提高了降噪耳垫100的装配效率。
此外，由于布套121的布料可以是超细纤维、针织布等，因此，布套121存在选材、编织工艺、制造控制等等差异，制作完成同批次的同一布类或不同布类形成的孔大小、疏密度、厚度不一等特性，而且不同时间生产的批次布类上述特性差异更大，从而使布套121形成的密封隔音空间101密封性差异大，无法匹配主动降噪滤波器及算法，做出来的降噪耳垫100效果差异很大，限制了降噪耳垫100在头戴式降噪耳机的应用，而基于此本申请，密封隔音膜122保持密封隔音空间101的空气压强各种相对状态稳定，使密封隔音空间101内的频响曲线顺滑，波动范围小、一致性高，使得调试降噪功能更高效、时间短、效果更好，且布套121选材范围扩大到任何的布类，能够更好地满足多样化和个性化需求，促使降噪耳垫100、降噪耳罩以及头戴式降噪耳机技术领域向前发展。
在此需要说明的是，在将降噪耳垫100应用于头戴式降噪耳机时，由于密封隔音膜122的铺设区域并未限制声音从密封隔音空间101传递至耳垫主体110，如此，耳垫主体110所占据的空间也可以成为头戴式降噪耳机播放声音时声场空间，有利于提高头戴式降噪耳机的立体声效效果。
在此还需要说明的是，在现有的降噪耳垫100中，耳垫主体110、布套121和隔音套均是相互独立的部件，在使用过程中，如隔音套出现裂口，基于隔音套的材料特性，裂口两侧容易发生错位，使裂口的长度会快速扩大，而裂口的长度过大之后，又会使隔音套形成一个较大的漏音口，而漏音口会允许声音传播，从而降低了隔音套的隔音效果。为使隔音套在使用过程中不易于出现裂口，在隔音套已实现隔音作用的腔体下，还需要增加隔音套的厚度，隔音套的厚度通常会大于布套121的厚度，这导致用料增加，进而增加了降噪耳垫100的制造成本。
而在本申请实施例中，即使密封隔音膜122出现裂口，由于密封隔音膜122附着于布套121朝向耳垫主体110的侧面，密封隔音膜122的裂口两侧在布套121的限制下不会发生错位，且布套121也限制了密封隔音膜122的裂口的长度扩大，使得密封隔音膜122不会形成漏音口，因此，基于本申请的结构设计，在密封隔音膜122已实现隔音作用的腔体下，不再需要增加密封隔音膜122的厚度，密封隔音膜122的厚度会小于布套121的厚度，相对于现有技术，减少了用料，降低了降噪耳垫100的制造成本。
具体地，在本申请实施例中，密封隔音膜122的厚度为0.005-0.1mm。
请参阅图2至图4，在本申请实施例中，密封隔音膜122的铺设区域还与耳垫主体110的与连接面201相背的外表面相对应。
在使用过程中，即在将降噪耳垫100抵压到人体头部后，由于降噪耳垫100靠近人体头部的部分会发生形变，使得耳垫主体110的与密封隔音空间101相向且靠近的人体头部侧面存在向外翻的概率，因此，当耳垫主体110的与密封隔音空间101相向且靠近的人体头部侧面存在向外翻时，如密封隔音膜122的铺设区域仅与耳垫主体110的与密封隔音空间101相背的外表面相对应，密封隔音空间101外的声音经耳垫主体110外翻的侧面传播到密封隔音空间101内，影响了降噪耳垫100的降噪效果。而基于此结构设计，由于密封隔音膜122的铺设区域还与耳垫主体110的与连接面201相背的外表面相对应，因此，即是使得耳垫主体110的与密封隔音空间101相向且靠近的人体头部侧面存在向外翻，密封隔音膜122依然能够限制限制声音经耳垫主体110传播到密封隔音空间101内。
进一步地，请参阅图2至图4，在本申请实施例中，密封隔音膜122的铺设区域与布套121的内侧面相对应，密封隔音膜122于既与密封隔音空间101相对又与连接面201相对的铺设区域至少开设有一个贯通设置的气孔。基于此，首先，在生产制造耳垫套120的过程中，可以先不用区分哪些区域需要设置密封隔音膜122，然后再在密封隔音膜上开设有气孔，如此，有利于提高生产效率，其次，如密封隔音膜122围合形成的空间成为密闭空间，并形成类似于气球的结构，这会导致耳垫主体110无法在使用过程中对人体头部进行适应性形变，而通过气孔的设置，避免密封隔音膜122围合形成的空间成为密闭空间，如此，在降噪耳垫100受压形变时，密封隔音膜122内气体会经气孔排出，而在降噪耳垫100形变恢复时，外部的气体会经气孔进入到密封隔音膜122围合形成的空间，保证降噪耳垫100正常使用。
在本申请实施例中，气孔设有四个，且呈环形阵列设置。
请参阅图3，在本申请实施例中，密封隔音膜122的背离耳垫主体110的侧面具有位于布套121内的置入层，也即是置入层混入到布套121，密封隔音膜122背离耳垫主体110的局部置入到布套121，置入层位于布套121内丝与丝之间存在微缝隙，布套121内的丝可将将密封隔音膜122牢固地附着于布套121，无需其他粘附胶等粘附材料来实现附着。
在此需要说明的是，该耳垫套120在生产制造过程中，可先使布套121的内侧面，然后将熔融态的胶铺设于布套121的内侧面，在重力作用下，熔融态的胶的下侧会渗入到布套121内，待熔融态的胶凝固后形成密封隔音膜122，并附着于布套121，也可以将密封隔音膜122直接热压到布套121，利用热压使密封隔音膜122产生一定的熔融特性，并在压力作用下，密封隔音膜122的局部会渗入到布套121内。
在此需要说明的是，结合图3所示，置入层与布套121相互重叠的部分为布膜混合层123。
实施例二
本实施例与实施例一的区别在于，密封隔音膜122设于布套121内，也即是，密封隔音膜122整体置于布套121内。
本实施例所起到的技术效果包括了与实施例一所起到的技术效果，在此不再展开赘述。
此外，密封隔音膜122整体位于布套121内丝与丝之间存在微缝隙，布套121内的丝可将将密封隔音膜122牢固地固定于布套121，无需其他粘附胶等粘附材料来实现附着。
该耳垫套120在生产制造过程中，可先使布套121的内侧面，然后将熔融态的胶铺设于布套121的内侧面，在重力作用下，熔融态的胶的下侧会渗入到布套121内，待熔融态的胶凝固后形成密封隔音膜122。
在本申请实施例中，密封隔音膜122的铺设区域还与耳垫主体110的与连接面201相背的外表面相对应。
进一步地，在本申请实施例中，密封隔音膜122于既与密封隔音空间101相对又与连接面201相对的铺设区域至少开设有一个贯通设置的气孔。
在本申请实施例中，密封隔音膜122的厚度为0.005-0.1mm。
在此需要说明的是，对于本实施例中与实施例一相同的结构，本实施例起到的技术效果与实施例一所起到的技术效果，在此不再展开赘述。
实施例三
本申请还提出一种降噪耳罩，该降噪耳罩包括降噪耳垫100，该降噪耳垫100的具体结构参照上述实施例，由于本降噪耳罩采用了上述所有实施例的全部技术方案，因此同样具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
实施例四
本申请还提出一种头戴式降噪耳机，该头戴式降噪耳机包括降噪耳垫100，该降噪耳垫100的具体结构参照上述实施例，由于本头戴式降噪耳机采用了上述所有实施例的全部技术方案，因此同样具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种降噪耳垫，连接于耳垫支架的连接面，并包括由多空隙柔性材料或泡沫柔性材料制成并呈环形且连接于连接面的耳垫主体，所述耳垫主体与所述连接面共同形成呈开口腔结构的密封隔音空间，其特征在于，所述降噪耳垫还包括耳垫套，所述耳垫套包括至少包覆所述耳垫主体外露的外表面并由布料制成的布套以及附着于所述布套朝向所述耳垫主体的侧面并由软胶制成的密封隔音膜，所述密封隔音膜的铺设区域与所述耳垫主体的与所述密封隔音空间相背的外表面相对应。
  2. 如权利要求1所述的降噪耳垫，其特征在于，所述密封隔音膜的铺设区域还与所述耳垫主体的与所述连接面相背的外表面相对应；
    或，所述密封隔音膜的铺设区域与所述布套的内侧面相对应，所述密封隔音膜于既与所述密封隔音空间相对又与所述连接面相对的铺设区域至少开设有一个贯通设置的气孔。
  3. 如权利要求1所述的降噪耳垫，其特征在于，所述密封隔音膜的厚度为0.005-0.1mm。
  4. 如权利要求1所述的降噪耳垫，其特征在于，所述密封隔音膜的背离所述耳垫主体的侧面具有位于所述布套内的置入层。
  5. 如权利要求1所述的降噪耳垫，其特征在于，所述布套包覆所述耳垫主体。
  6. 一种降噪耳垫，连接于耳垫支架的连接面，并包括由多空隙柔性材料或泡沫柔性材料制成并呈环形且连接于连接面的耳垫主体，所述耳垫主体与所述连接面共同形成呈开口腔结构的密封隔音空间，其特征在于，所述降噪耳垫还包括耳垫套，所述耳垫套包括至少包覆所述耳垫主体外露的外表面并由布料制成的布套以及设于所述布套内并由软胶制成的密封隔音膜，所述密封隔音膜的铺设区域与所述耳垫主体的与所述密封隔音空间相背的外表面相对应。
  7. 如权利要求6所述的降噪耳垫，其特征在于，所述密封隔音膜的铺设区域还与所述耳垫主体的与所述连接面相背的外表面相对应；
    或，所述密封隔音膜的铺设区域与所述布套的内侧面相对应，所述密封隔音膜于既与所述密封隔音空间相对又与所述连接面相对的铺设区域至少开设有一个贯通设置的气孔。
  8. 如权利要求6所述的降噪耳垫，其特征在于，所述密封隔音膜的厚度为0.005-0.1mm。
  9. 一种降噪耳罩，其特征在于，包括如权利要求1至8中任一项所述的降噪耳垫。
  10. 一种头戴式降噪耳机，其特征在于，包括如权利要求1至8中任一项所述的降噪耳垫。
PCT/CN2021/094424 2021-05-18 2021-05-18 降噪耳垫、降噪耳罩以及头戴式降噪耳机 WO2022241651A1 (zh)

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