-
公开(公告)号:WO2023078575A2
公开(公告)日:2023-05-11
申请号:PCT/EP2021/083836
申请日:2021-12-01
申请人: BUENDIA, José , PICCALUGA, Pierre , STEFFAN, Cyril , PERRICHON, Claude-Annie , MARTY, Fabien , FLEBUS, Olivier , PICCALUGA, Elina , GUTH, Barbara , CHARBONNEAUX, Marc
发明人: BUENDIA, José , PICCALUGA, Pierre , STEFFAN, Cyril , PERRICHON, Claude-Annie , MARTY, Fabien , FLEBUS, Olivier , PICCALUGA, Elina , GUTH, Barbara , CHARBONNEAUX, Marc
摘要: L'ondulatoire porte et rend la propagation intégrale du message corpusculaire sans effort ni puissance, par de micro informations sonores. Pour toutes les fréquences de bandes sonores, le complément sonore est réalisé par l'appareil magnétique d'amortissement électromécanique de la haute impédance de vibration transverse conforme à la décomposition de Fourier. C'est la présence acoustique vivante parfaite, sans écrasement qui ne heurte pas notre biologie. L'avantage est la réduction de masse embarquée, de volume gagné dans tout véhicule, air terre mer, ainsi qu'une installation discrète dans les habitats, usines, salles de concert, sans provoquer d'échos, en complément des haut-parleurs actuels. Le son est complet pour l'application médicale sonore, juste audible à faible niveau d'intensité vibratoire, par vibration transverse du continuum universel. On est au carrefour magnétique de la physique et de la biologie.
-
公开(公告)号:WO2023028813A1
公开(公告)日:2023-03-09
申请号:PCT/CN2021/115552
申请日:2021-08-31
申请人: 大连理工大学
IPC分类号: G10K11/16 , G10K11/162
摘要: 一种低通声滤波器组宽频吸声体,包括一张微穿孔板、微穿孔板后空腔、与板后空腔相通的一条等截面或变截面曲折声波主通道,以及从声波主通道入口开始沿声波主通道按照截止频率从高到低的顺序布置的多个低通声滤波器。微穿孔板一侧为外部声波入射端,另一侧后布置有空腔,空腔末端与声波主通道的始端相通;外部入射的声波通过微穿孔板进入其后的空腔,而后由空腔进入声波主通道;曲折声波主通道是一条末端封闭的、迂回弯曲的通道,以单层或多层的型式在吸声体中紧密布置;当声波主通道以多层型式布置时,相邻层之间的通道相通,以保证声波主通道从始端到末端连通。该低通声滤波器组宽频吸声体,既能实现采用一条声波主通道,满足一张微穿孔板对吸收不同中心频带声波的相位传播延迟的要求,同时结合声波主通道曲折布置,也能实现超薄的结构尺寸。
-
公开(公告)号:WO2023013323A1
公开(公告)日:2023-02-09
申请号:PCT/JP2022/026161
申请日:2022-06-30
申请人: ピクシーダストテクノロジーズ株式会社
IPC分类号: G10K11/16 , E01B19/00 , E01F8/00 , E04B1/84 , G10K11/172
摘要: 吸音ユニット10は、形状と大きさとの少なくとも何れかが互いに異なる複数の空洞部を有する。複数の空洞部に含まれる空洞部の壁を構成する穿孔板20には、空洞部の内部と外部とを連通させる穿孔が形成される。穿孔板20の表面には、複数の穿孔が形成された穿孔領域と、穿孔が形成されていない非穿孔領域とが含まれる。
-
4.
公开(公告)号:WO2022254341A1
公开(公告)日:2022-12-08
申请号:PCT/IB2022/055093
申请日:2022-05-31
摘要: A presente descrição diz respeito a um módulo prismático para controlo acústico ajustável, em que o referido módulo compreende: um suporte prismático oco; um revestimento flexível elástico em que o revestimento está disposto de forma tensionada numa face de topo do suporte prismático; uma vareta disposta no oco do suporte prismático e deslocável entre uma posição estendida, uma posição intermédia e uma posição recolhida; em que a vareta está acoplada ao revestimento em que: quando a vareta está na posição estendida, o revestimento tem uma forma afunilada para o exterior da estrutura; quando a vareta está na posição recolhida, o revestimento tem uma forma afunilada para o interior da estrutura; quando a vareta está na posição intermédia, o revestimento tem uma forma planar. A presente descrição diz ainda respeito ao método de fabrico e ao método de operar o referido módulo.
-
公开(公告)号:WO2022222984A1
公开(公告)日:2022-10-27
申请号:PCT/CN2022/088104
申请日:2022-04-21
发明人: SHENG, Ping , MAK, Ho Yiu , ZHANG, Xiaonan , DONG, Zhen
IPC分类号: G10K11/16
摘要: An ultra-low frequency acoustic absorber (10) and a hybrid membrane resonator (210). The ultra-low frequency acoustic absorber (10) includes a hollow housing (12) having opposed first and second open ends (22, 24), and a plurality of metallic mesh layers (16) stacked within the housing (12). In order to secure the plurality of metallic mesh layers (16) within the hollow housing (12), first and second mesh covers (18, 20) may cover the first and second open ends (22, 24) of the hollow housing (12) respectively. At least one spacer (14) may be provided to form a gap between the housing (12) and a support surface, such as a hard wall (W) or the like. The at least one spacer (14) may have a length sufficient to space the ultra-low frequency acoustic absorber (10) at the position of optimal absorption based on an acoustic soft boundary condition (ASBC). Wherein, each of the metallic mesh layers has an average pore size of approximately 4 X 10-4 mm2. The hybrid membrane resonator (210) includes a housing (222) having an open end (224) and an opposed closed end (226); and a decorated membrane resonator (216) covering and sealing the open end (224) of the housing (222), wherein a cavity (228) is defined within the housing (222), between the decorated membrane resonator (218) and the closed end (226) of the housing (222), the closed end (226) of the housing (222) defining a reflecting back plate, wherein, at least one hole (212) is formed through a sidewall of the housing, the at least one hole (212) being configured to create an acoustic soft boundary condition within the cavity and behind the decorated membrane resonator (210). Wherein, a Fabry-Pérot resonator (214) mounted to an outer face of the closed end (226) of the housing (222), a channel (230) being formed through the closed end (226) of the housing (210) such that the cavity (228) communicates with an interior of the Fabry-Pérot resonator (214).
-
公开(公告)号:WO2022214500A1
公开(公告)日:2022-10-13
申请号:PCT/EP2022/059032
申请日:2022-04-05
申请人: TALLANO TECHNOLOGIE , AKWEL
发明人: GUERRY, Pascal
IPC分类号: G10K11/16 , F04D29/66 , F16D55/00 , F16D65/00 , G10K11/172 , B60T17/00 , B60T17/02 , F04D13/06 , F04D29/42
摘要: Ce dispositif (200) d'atténuation acoustique pour un dispositif électromécanique parcouru par un flux gazeux susceptible de propager des ondes acoustiques, comprend des orifices d'entrée (202) et de sortie (204) d'un flux gazeux, en particulier en vue d'une évacuation dans l'atmosphère. Selon l'invention, le dispositif (200) comprend un canal (206) globalement annulaire définissant un trajet d'écoulement du flux gazeux sensiblement circulaire autour d'un axe principal (X) entre les orifices d'entrée (202) et de sortie (204), et une pluralité d'éléments atténuateurs acoustiques (210) accordés sur une fréquence de résonance d'atténuation avec une bande de fréquences d'atténuation associée, répartis en série circulairement le long dudit canal (206) de façon à être en interaction avec le flux gazeux s'écoulant dans le canal (206), les éléments atténuateurs acoustiques (210) étant formés par des cavités (212) de résonateurs quart d'onde.
-
公开(公告)号:WO2022192369A1
公开(公告)日:2022-09-15
申请号:PCT/US2022/019512
申请日:2022-03-09
IPC分类号: E04B1/86 , C09D131/04 , C09D7/61 , C08L91/06 , G10K11/16
摘要: Described herein is a coated building panel comprising an acoustical body comprising a first major surface and a side surface that intersects the first major surface, a coating applied to the first major surface, the coating comprising a polymeric binder, a pigment, and a hydrophobic component present in an amount ranging from about 1.0 wt. % to about 8.0 wt. % based on the total weight of the coating; and wherein the pigment and polymeric binder are present in a weight ratio ranging from about 3.5:1 to about 6.5:1.
-
公开(公告)号:WO2022188901A1
公开(公告)日:2022-09-15
申请号:PCT/CZ2021/000053
申请日:2021-11-08
发明人: VALÁŠEK, Michael , VAMPOLA, Tomáš
摘要: The invention concerns an acoustic barrier between a space with a noise source and a noise receiving space and its subject matter consists in a barrier (1) consisting of a thin plate with both the radii of curvature of a finite size and the same sign. Barrier (1) is equipped with at least one rib (10) of a closed or an open shape. Ribs (10) consist of thin plates with both the radii of curvature of a finite size and the same sign, whereas a thickness of barrier (1) is equal or less than a thickness of ribs (10).
-
公开(公告)号:WO2022172552A1
公开(公告)日:2022-08-18
申请号:PCT/JP2021/042804
申请日:2021-11-22
申请人: タケシンパッケージ株式会社
发明人: 新谷 啓一郎
摘要: 取付体(3a~3d)の形状は、四角形に内接する1倍形状、又は四角形を連続して整数個並べて形成される外形の各辺に内接する整数倍形状であり、カバーは、1倍取付体(3a)に取り付け可能な大きさの1倍カバー(2a)、又は整数倍取付体(3b~3d)に取り付け可能な大きさの整数倍カバー(2b~2d)を含んでおり、1倍取付体(3a)への1倍カバー(2a)の取り付け、整数個分の1倍取付体(3a)への整数倍カバー(2b~2d)の取り付け、又は整数倍取付体(3b~3d)への整数倍カバー(2b~2d)の取り付けにより、複数のカバーで構成される意匠パターンのバリエーションを設定できる。
-
公开(公告)号:WO2022168748A1
公开(公告)日:2022-08-11
申请号:PCT/JP2022/003266
申请日:2022-01-28
申请人: 東レ株式会社
IPC分类号: B32B5/26 , B32B27/36 , B60R13/02 , D04H1/4374 , G10K11/16 , G10K11/168
摘要: 本発明は、成形時の厚さ回復性、追従性に優れ、吸音性能に優れた吸音材用不織布および吸音材を提供することを課題とする。かかる課題を解決するために、 不織布層αと不織布層βとが積層された吸音材用不織布積層体であって、不織布層αは、繊度が0.4~3.8dtexの短繊維Aと、繊度が4.0~22.0dtexの短繊維Bと、融点が135~190℃の樹脂を外表層に含む短繊維C1とを含有し、前記不織布層αの全質量に対する前記短繊維Aと前記短繊維Bの合計含有質量は86~98質量%であり、前記不織布層αの全質量に対する前記短繊維C1の含有質量は2~14質量%であり、前記短繊維Aと前記短繊維Bの含有質量比(短繊維Aの含有質量/短繊維Bの含有質量)は、0.05~3.80であり、不織布層βは、融点が70~190℃の樹脂を外表層に含む短繊維C2を含有し、前記不織布層βの全質量に対する前記短繊維C2の含有質量は、20~60質量%であり、かつ、前記不織布層αと前記不織布層βが部分融着された吸音材用不織布積層体である。
-
-
-
-
-
-
-
-
-