Soundproofing structure, partition structure, window member, and cage

    公开(公告)号:US11155993B2

    公开(公告)日:2021-10-26

    申请号:US16119367

    申请日:2018-08-31

    摘要: An object is to provide a soundproofing structure, a partition structure, a window member, and a cage which exhibit high soundproofing performance in a broad frequency band, can be miniaturized, can ensure ventilation properties, and have a light transmittance. Provided is a soundproofing structure including: a plate-like member which has a plurality of through-holes passing therethrough in a thickness direction; and a frame member which includes an opening portion, in which membrane vibration of the plate-like member is enabled by fixing the plate-like member to a peripheral edge of the opening portion of the frame member, an average opening diameter of the through-holes is in a range of 0.1 μm to 250 μm, and a first unique vibration frequency of the membrane vibration of the plate-like member is present in a range of 10 Hz to 100000 Hz.

    Soundproof structure
    32.
    发明授权

    公开(公告)号:US10923095B2

    公开(公告)日:2021-02-16

    申请号:US15848520

    申请日:2017-12-20

    摘要: There is provided a laminated soundproof structure formed by laminating a single layer soundproof structure having one or more soundproof cells which are arranged in a two-dimensional plane and each of which includes a frame, a film, and an opening portion including a hole. The single layer soundproof structure has a shielding peak frequency, which is determined by the opening portion of each of the soundproof cells and at which a transmission loss is maximized, on a lower frequency side than a first natural vibration frequency of the film of each of the soundproof cells. The soundproof cells of the single layer soundproof structures are laminated with a distance therebetween, and at least some of the laminated soundproof cells have the same conditions of the frame, the film, and the opening portion.

    Soundproof structure and soundproof structure manufacturing method

    公开(公告)号:US10704255B2

    公开(公告)日:2020-07-07

    申请号:US15802784

    申请日:2017-11-03

    IPC分类号: E04B1/84 E04B1/86 G10K11/172

    摘要: A soundproof structure has a plurality of soundproof cells arranged in a two-dimensional manner. Each of the plurality of soundproof cells includes a frame formed of a frame member forming an opening and a film fixed to the frame. Two or more types of soundproof cells having different first resonance frequencies are present in the plurality of soundproof cells. A shielding peak frequency at which transmission loss is maximized is present within a range equal to or higher than a lowest frequency among first resonance frequencies of the soundproof cells and equal to or lower than a highest frequency among the first resonance frequencies of the soundproof cells.

    Soundproofing structure, opening structure, cylindrical structure, window member, and partition member

    公开(公告)号:US10373599B2

    公开(公告)日:2019-08-06

    申请号:US16122042

    申请日:2018-09-05

    摘要: An object is to provide a soundproofing structure which exhibits high soundproofing performance in a broad frequency band, can be miniaturized, can ensure ventilation properties, and has a light transmittance, and a cylindrical structure, a window member, and a partition member including this soundproofing structure. Provided is a soundproofing structure including: a soundproofing cell which includes a frame having a frame hole portion passing therethrough and a film that covers the frame hole portion and is fixed to the frame, in which the film has a plurality of through-holes passing therethrough in a thickness direction, an average opening diameter of the through-holes is in a range of 0.1 μm to 250 μm, and a vertical direction of a film surface is disposed so as to be inclined with respect to a direction of a sound source to be soundproofed.

    Soundproofing structure, partition structure, window member, and cage

    公开(公告)号:US10269339B2

    公开(公告)日:2019-04-23

    申请号:US16119243

    申请日:2018-08-31

    摘要: Provided is a soundproofing structure including: a plate-like member which has a plurality of through-holes passing therethrough in a thickness direction, in which in a case where an average opening diameter of the through-holes is 0.1 μm or greater and less than 100 μm, and in a case where the average opening diameter of the through-holes is set as phi (μm) and a thickness of the plate-like member is set as t (μm), an average opening ratio rho of the through-holes is greater than 0 and less than 1 and falls in a range where a center is rho_center=(2+0.25×t)×phi−1.6, a lower limit is rho_center−(0.052×(phi/30)−2), and an upper limit is rho_center+(0.795×(phi/30)−2).

    Optical field enhancement device and manufacturing method of the same

    公开(公告)号:US10094956B2

    公开(公告)日:2018-10-09

    申请号:US14849932

    申请日:2015-09-10

    发明人: Shogo Yamazoe

    摘要: In an optical field enhancement device in which localized plasmon is induced on a surface through illumination of excitation light and intensity of signal light emitted, by the illumination, from a sample placed on the surface is enhanced, forming sharp-edged petal-like fine uneven structures disposed at random on a substrate, and forming plate-like metal fine structures on tip portions of the sharp-edged petal-like fine uneven structures by depositing a metal from an oblique direction with respect to a direction perpendicular to a plane of the substrate on which the sharp-edged petal-like fine uneven structures are formed.

    Optical field enhancement device, light measurement apparatus and method
    38.
    发明授权
    Optical field enhancement device, light measurement apparatus and method 有权
    光场增强装置,光测量装置及方法

    公开(公告)号:US09575003B2

    公开(公告)日:2017-02-21

    申请号:US14619347

    申请日:2015-02-11

    IPC分类号: G01N21/55 G01N21/65 G01N21/01

    摘要: An optical field enhancement device that generates an enhanced optical field on a surface of a metal film by an optical field enhancement effect of localized plasmon induced on the surface of the metal film by light projected onto a nanostructure on which the metal film is formed, the device including a transparent substrate having a transparent nanostructure on a surface, a metal film formed on a surface of the nanostructure, and a support member for supporting a subject at a position spaced apart from the surface of the metal film.

    摘要翻译: 一种光场增强装置,其通过投射到其上形成有金属膜的纳米结构上的光而在金属膜的表面上诱导的局部等离子体激元的光场增强效应,在金属膜的表面上产生增强的光场, 包括在表面上具有透明纳米结构的透明基板,形成在纳米结构的表面上的金属膜,以及用于在与金属膜的表面间隔开的位置处支撑被检体的支撑部件。

    Blower with silencer
    39.
    发明授权

    公开(公告)号:US12006953B2

    公开(公告)日:2024-06-11

    申请号:US17886556

    申请日:2022-08-12

    IPC分类号: F04D29/66 F04D19/00 F04D29/54

    摘要: An axial fan that includes a casing having an inner space that penetrates in one direction, and a rotor blade disposed in the inner space of the casing, and a silencer that is disposed at a position connected to the inner space of the axial fan are provided, in which the axial fan has a sound pressure distribution having a position at which a sound pressure is high and a position at which the sound pressure is low in a circumferential direction in the inner space during driving, and the silencer is disposed at the position of the axial fan in the circumferential direction at which the sound pressure is high and is not disposed at the position at which the sound pressure is low.

    Soundproof structure body
    40.
    发明授权

    公开(公告)号:US11682374B2

    公开(公告)日:2023-06-20

    申请号:US16838497

    申请日:2020-04-02

    摘要: A soundproof structure body includes a first tube structure and a second tube structure connected to the first tube structure and having a cross-sectional area different from the first tube structure, in which a structure body having a cross-sectional area smaller than a cross-sectional area of the first tube structure is installed in the first tube structure, and a transmission loss in a case where the structure body is installed in the first tube structure with respect to a case where the structure body is not installed in the first tube structure is positive at two frequencies adjacent to each other and difficult to generate an air column resonance mode in the first tube structure. This soundproof structure body generates a soundproof effect even at frequencies other than air column resonance of a tube structure such as a duct or a muffler, has a small size, and can obtain a high transmission loss in a wide-band.