WO2021259243A1 - Appareil d'isolation sonore - Google Patents

Appareil d'isolation sonore Download PDF

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Publication number
WO2021259243A1
WO2021259243A1 PCT/CN2021/101482 CN2021101482W WO2021259243A1 WO 2021259243 A1 WO2021259243 A1 WO 2021259243A1 CN 2021101482 W CN2021101482 W CN 2021101482W WO 2021259243 A1 WO2021259243 A1 WO 2021259243A1
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WO
WIPO (PCT)
Prior art keywords
sound insulation
layer
sound
insulation layer
board
Prior art date
Application number
PCT/CN2021/101482
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English (en)
Chinese (zh)
Inventor
侯东
金文德
王斌
刘主光
陈小刚
崔建业
由伟翰
聂京凯
韩钰
陈新
樊超
王广克
田一
刘晓圣
何强
杨富尧
祝志祥
马光
Original Assignee
全球能源互联网研究院有限公司
国家电网有限公司
国网浙江省电力有限公司
国网浙江省电力有限公司金华供电公司
国网浙江省电力有限公司温州供电公司
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Application filed by 全球能源互联网研究院有限公司, 国家电网有限公司, 国网浙江省电力有限公司, 国网浙江省电力有限公司金华供电公司, 国网浙江省电力有限公司温州供电公司 filed Critical 全球能源互联网研究院有限公司
Publication of WO2021259243A1 publication Critical patent/WO2021259243A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B13/12—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • B32B7/022—Mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • 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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment

Definitions

  • the embodiment of the present invention relates to the field of power equipment, in particular to a sound insulation device.
  • the sound insulation cover is usually used for noise treatment. Due to some transformers, shunt reactors, smoothing reactors and other reactors are placed outdoors for a long time and are in uninterrupted live operation.
  • the sound insulation cover for the sound insulation of transformers, shunt reactors, smoothing reactors and other reactors in order to play the role of flame retardancy, weather resistance, and insulation, generally uses a hollow structure for the internal interlayer to achieve sound insulation effects , But its sound insulation and noise reduction effect is very limited, so it is urgent to propose a new sound insulation material to effectively isolate the noise generated by transformers, shunt reactors, smoothing reactors and other reactors.
  • the technical problem to be solved by the embodiments of the present invention is to overcome the defect of limited sound insulation and noise reduction effects of reactors such as transformers, shunt reactors, smoothing reactors, etc. in the prior art, thereby providing a sound insulation device.
  • An embodiment of the present invention provides a sound insulation device, including: a first sound insulation layer and a second sound insulation layer, and at least one sound absorption layer is laminated between the first sound insulation layer and the second sound insulation layer.
  • a sound absorption layer is laminated between the first sound insulation layer and the second sound insulation layer, the first sound insulation layer and the sound absorption layer, the second sound insulation layer and the sound absorption layer
  • the layers are connected by an adhesive layer.
  • a plurality of sound absorption layers are stacked between the first sound insulation layer and the second sound insulation layer, the first sound insulation layer and the sound absorption layer, and the second sound insulation layer and the absorption layer
  • the sound layer and the plurality of sound absorption layers are connected by an adhesive layer.
  • the material of the first sound insulation layer and the second sound insulation layer includes any one of epoxy resin board, polyvinyl chloride board, calcium silicate board, gypsum board, and glass fiber reinforced plastic.
  • the materials used for the first sound insulation layer and the second sound insulation layer are different.
  • the material of the first adhesive layer and the second adhesive layer includes silicone gel, and the thickness of the silicone gel ranges from 2 mm to 4 mm.
  • the sound-absorbing layer includes: a sound-absorbing layer panel and a honeycomb panel, and the sound-absorbing layer panel is disposed on the lower surface of the honeycomb panel.
  • the honeycomb panel is a hexagonal plastic honeycomb panel
  • the thickness of the hexagonal plastic honeycomb panel is 10mm-30mm
  • the hexagonal side length is 6mm
  • the wall thickness is 0.5mm-1mm.
  • the first sound insulation layer or the second sound insulation layer is an epoxy resin board or a polyvinyl chloride board, and the thickness of the epoxy resin board or the polyvinyl chloride board is in the range of 5mm-10mm; the ring The surface density of the oxygen resin board or polyvinyl chloride board is 3kg/m 2 -10kg/m 2 .
  • the first sound insulation layer or the second sound insulation layer is calcium silicate board and gypsum board
  • the thickness of the calcium silicate board or gypsum board is in the range of 5mm-10mm
  • the calcium silicate board or The areal density of gypsum board ranges from 15kg/m 2 to 30kg/m 2 .
  • the first sound insulation layer and the second sound insulation layer are arranged, and at least one sound absorption layer is laminated between the first sound insulation layer and the second sound insulation layer, wherein the first/ The second sound insulation layer has sound insulation performance, and the sound absorption layer has a sound absorption effect, thereby achieving a good sound insulation effect.
  • Fig. 1 is a schematic diagram of a specific example of a sound insulation device in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a specific example of the sound insulation device in the embodiment of the present invention.
  • Fig. 3 is a schematic diagram of a specific example of the sound insulation device in the embodiment of the present invention.
  • Fig. 4 is a graph showing the test results of the sound insulation device and the comparative example in several embodiments of the present invention.
  • connection should be interpreted broadly. For example, they may be fixed connections or Removable connection or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can also be the internal connection of the two components, it can be wireless connection or it can be It is a wired connection.
  • connection should be interpreted broadly. For example, they may be fixed connections or Removable connection or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can also be the internal connection of the two components, it can be wireless connection or it can be It is a wired connection.
  • An embodiment of the present invention provides a sound insulation device, which includes a first sound insulation layer and a second sound insulation layer, and at least one sound absorption layer is laminated between the first sound insulation layer and the second sound insulation layer.
  • two sound absorption layers are provided between the first sound insulation layer and the second sound insulation layer as an example.
  • the first sound insulation layer 101 and the first sound insulation layer 101 are stacked in sequence.
  • the first sound insulation layer 101 and the second sound insulation layer 104 can be made of any anti-corrosion, insulation, and flame-retardant material, such as gypsum board, calcium carbonate board, etc.; the first sound absorption layer 102, the second sound absorption layer 103 It can be any structural material with a closed cavity, such as a plastic plate with a circular hole-like structure.
  • the first sound insulation layer 101, the first sound absorption layer 102, the second sound absorption layer 103, and the second sound insulation layer 104 can be combined into a detachable sound insulation device in a plug-in manner, or they can be bonded by glue. become.
  • the material and thickness of each layer and the connection mode of each layer are not limited in the embodiment of the present invention, and those skilled in the art can determine according to needs.
  • the first sound insulation layer and the second sound insulation layer are arranged, and at least one sound absorption layer is laminated between the first sound insulation layer and the second sound insulation layer, wherein the first/ The second sound insulation layer has sound insulation performance, and the sound absorption layer has a sound absorption effect, thereby achieving a good sound insulation effect.
  • a sound absorbing layer is laminated between the first sound insulation layer and the second sound insulation layer, and between the first sound insulation layer and the sound absorption layer, and the second sound insulation layer and the sound absorption layer Connected by adhesive layer.
  • the first sound insulation layer 201, the first adhesive layer 202, the sound absorption layer 203, the second adhesive layer 204, and the second sound insulation layer 205 are taken as examples for description.
  • the first adhesive layer 202 and the second adhesive layer 204 can be any material that has the function of connecting, damping, and breaking the sound bridge, such as damping gel.
  • the material of the bonding layer is not limited, and those skilled in the art can determine it according to needs.
  • the first sound insulation layer 201 and the second sound insulation layer 205 are made of any kind of anti-corrosion, insulation and flame retardant materials, such as gypsum board, calcium carbonate board, etc.; the sound absorption layer 203 can be any kind with a closed The structural material of the cavity, such as a plastic plate with a circular hole-like structure.
  • the sound insulation device provided by the embodiment of the present invention realizes the connection between the various layers through the adhesive layer.
  • the adhesive layer can be used as a damping layer to realize the effect of consuming vibration and interrupting the sound bridge, thereby further improving the sound insulation of the sound insulation device. Effect.
  • a plurality of sound absorption layers are stacked between the first sound insulation layer and the second sound insulation layer, the first sound insulation layer and the sound absorption layer, the second sound insulation layer and the sound absorption layer, and the The multiple sound-absorbing layers are connected by an adhesive layer.
  • the materials of the first sound insulation layer and the second sound insulation layer include any of epoxy resin board, polyvinyl chloride board, calcium silicate board, gypsum board, and glass fiber reinforced plastic. A sort of.
  • the materials used for the first sound insulation layer and the second sound insulation layer are different. That is, when the first sound insulation layer is a polyvinyl chloride board, the second sound insulation layer is not a polyvinyl chloride board, but may be a gypsum board, a calcium silicate board, or the like.
  • materials with different acoustic impedances are selected for the first sound insulation layer and the second sound insulation layer, which can reduce resonance and improve the anastomosis effect. Different impedances cause different frequencies of sound waves to be refracted and reflected on various interfaces to achieve the purpose of consuming sound energy.
  • the materials of the first adhesive layer and the second adhesive layer include silicone gel; the thickness of the silicone gel ranges from 2 mm to 4 mm.
  • Silicone gel has good sealing, adhesion, and weather resistance. In addition to its connection effect, it can be regarded as a damping material, which inhibits the vibration and resonance between the plates, prevents the rigid connection of the plates and damages the "sound bridge".
  • the silicone gel is squeezed and deformed by vibration, which improves the sound insulation of the resonant audio frequency region and the coincident audio frequency region.
  • the sound absorption layer includes: a sound absorption layer panel 301 and a honeycomb panel 302, the sound absorption layer panel 301 is disposed on the upper and lower surfaces of the honeycomb panel 302;
  • the honeycomb panel 302 is a hexagonal plastic honeycomb panel; the thickness of the hexagonal plastic honeycomb panel is 10mm-20mm, the hexagonal side length is 6mm, and the wall thickness is 0.5mm-1mm.
  • the sound-absorbing layer structure is composed of upper and lower sound-absorbing layer panels 301 and the middle honeycomb panel 302, which is light in weight and has sufficient strength.
  • the first sound insulation layer or the second sound insulation layer is an epoxy resin board or a polyvinyl chloride board, and the thickness range of the epoxy resin board or the polyvinyl chloride board is 5mm-10mm; the surface density of the epoxy resin board or polyvinyl chloride board is 3kg/m 2 -10kg/m 2 .
  • the first sound insulation layer or the second sound insulation layer is calcium silicate board and gypsum board
  • the thickness of the calcium silicate board or gypsum board is in the range of 5mm-10mm
  • the areal density of the calcium silicate board or gypsum board ranges from 15 kg/m 2 to 30 kg/m 2 .
  • the first sound insulation layer 101 is a polyvinyl chloride board with a thickness of 5 mm
  • the second sound insulation layer 105 is a gypsum board with a thickness of 10 mm
  • the first adhesive layer 102 and the second adhesive layer 104 are Silicone gel with a thickness of 3mm
  • the sound-absorbing layer 103 includes a sound-absorbing layer panel 301 and a honeycomb panel 302.
  • the sound-absorbing layer panel 301 is arranged on the upper and lower surfaces of the honeycomb panel 302.
  • the sound-absorbing layer panel 301 is a polyvinyl chloride panel.
  • the thickness is 0.5mm.
  • the honeycomb panel 302 is a hexagonal plastic honeycomb panel with a thickness of 20mm and a hexagonal side length of 6mm.
  • the sound insulation performance test results are shown in Figure 4.
  • the first sound insulation layer 101 is an epoxy resin board with a thickness of 10 mm
  • the second sound insulation layer 105 is a calcium silicate board with a thickness of 10 mm
  • the first adhesive layer 102 and the second adhesive layer 104 It is a silicone gel with a thickness of 3mm
  • the sound-absorbing layer 103 includes a sound-absorbing layer panel 301 and a honeycomb panel 302.
  • the sound-absorbing layer panel 301 is arranged on the upper and lower surfaces of the honeycomb panel 302, wherein the sound-absorbing layer panel 301 is a polyvinyl chloride panel ,
  • the thickness is 0.5mm
  • the honeycomb panel 302 is a hexagonal plastic honeycomb panel with a thickness of 25mm and a hexagonal side length of 6mm.
  • the sound insulation performance test results are shown in Figure 4.
  • the first sound insulation layer 101 is a calcium silicate board with a thickness of 10 mm
  • the second sound insulation layer 105 is an epoxy resin board with a thickness of 10 mm
  • the first adhesive layer 102 and the second adhesive layer 104 It is a silicone gel with a thickness of 3mm
  • the sound-absorbing layer 103 includes a sound-absorbing layer panel 301 and a honeycomb panel 302.
  • the sound-absorbing layer panel 301 is arranged on the upper and lower surfaces of the honeycomb panel 302.
  • the sound-absorbing layer panel 301 is a polyvinyl chloride panel.
  • the thickness is 1mm
  • the honeycomb panel 302 is a hexagonal plastic honeycomb panel with a thickness of 30mm and a hexagonal side length of 6mm.
  • the sound insulation performance test results are shown in Figure 4.
  • Comparative example 1 The first sound insulation layer 101 calcium silicate board, thickness 10mm, the second sound insulation layer 105 is epoxy resin board, thickness 10mm, with a 30mm cavity in the middle.
  • the sound insulation performance test results are shown in Figure 4. .
  • Comparative Example 1 is a prior art solution. It can be seen from FIG. 4 that at about 1600HZ, the sound insulation of Comparative Example 1 has a sudden change and the sound insulation performance is greatly reduced. However, the sound insulation devices in the embodiments of the present invention are not greatly affected. As a result, the sound insulation performance is more stable, so that the solution in the embodiment of the present invention can improve the sound insulation performance of the resonance region.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne un appareil d'isolation sonore, comprenant une première couche d'isolation sonore (101, 201) et une seconde couche d'isolation sonore (104, 205), au moins une couche d'absorption sonore (102, 103, 203) étant stratifiée entre la première couche d'isolation sonore (101, 201) et la seconde couche d'isolation sonore (104, 205). Une première couche d'isolation sonore (101, 201) et une seconde couche d'isolation sonore (104, 205) sont utilisées, et au moins une couche d'absorption sonore (102, 103, 203) est stratifiée entre la première couche d'isolation sonore (101, 201) et la seconde couche d'isolation sonore (104, 205), la première/la seconde couche d'isolation sonore ayant une propriété d'isolation sonore, et la couche d'absorption sonore ayant un effet d'absorption sur les sons, de sorte qu'un bon effet d'isolation sonore soit obtenu de sorte à satisfaire aux exigences de réduction de bruit d'un transformateur, d'un réacteur et d'un réacteur à ondes plates.
PCT/CN2021/101482 2020-06-22 2021-06-22 Appareil d'isolation sonore WO2021259243A1 (fr)

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Application Number Priority Date Filing Date Title
CN202010576824.9A CN111590969A (zh) 2020-06-22 2020-06-22 一种隔声装置
CN202010576824.9 2020-06-22

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Publication number Priority date Publication date Assignee Title
CN111590969A (zh) * 2020-06-22 2020-08-28 全球能源互联网研究院有限公司 一种隔声装置

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JPH04303637A (ja) * 1991-03-30 1992-10-27 Nippon Tokushu Toryo Co Ltd 成形天井材
CN2855729Y (zh) * 2005-12-19 2007-01-10 郑百哲 珍珠岩蜂窝板
CN203543225U (zh) * 2013-09-02 2014-04-16 江苏大学 一种复合阻尼减振蜂窝夹层板
CN205380940U (zh) * 2016-01-14 2016-07-13 上海源仕复合材料有限公司 夹芯板结构
CN106499150A (zh) * 2016-12-12 2017-03-15 苏州兹安金属制品有限公司 一种气凝胶蜂窝夹心板
CN111590969A (zh) * 2020-06-22 2020-08-28 全球能源互联网研究院有限公司 一种隔声装置

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CN212499221U (zh) * 2020-06-22 2021-02-09 全球能源互联网研究院有限公司 一种隔声装置

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Publication number Priority date Publication date Assignee Title
JPH04303637A (ja) * 1991-03-30 1992-10-27 Nippon Tokushu Toryo Co Ltd 成形天井材
CN2855729Y (zh) * 2005-12-19 2007-01-10 郑百哲 珍珠岩蜂窝板
CN203543225U (zh) * 2013-09-02 2014-04-16 江苏大学 一种复合阻尼减振蜂窝夹层板
CN205380940U (zh) * 2016-01-14 2016-07-13 上海源仕复合材料有限公司 夹芯板结构
CN106499150A (zh) * 2016-12-12 2017-03-15 苏州兹安金属制品有限公司 一种气凝胶蜂窝夹心板
CN111590969A (zh) * 2020-06-22 2020-08-28 全球能源互联网研究院有限公司 一种隔声装置

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