Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Laminated structure sound insulation device

A laminated structure and sound insulation technology, applied in the direction of sound insulation, insulation layer, building components, etc., can solve the problems of high noise in the power distribution room, easy to trouble the residents, etc., to enhance the sound insulation performance, improve the sound insulation performance, and improve the damping. performance effect

Pending Publication Date: 2020-07-17
HULUNBEIER ELECTRIC POWER BUREAU OF EAST INNER MONGOLIA ELECTRIC POWER COMPANY +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the power distribution room in the prior art is noisy and easily disturbs the residents, so as to provide a laminated structure sound insulation device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laminated structure sound insulation device
  • Laminated structure sound insulation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 As shown, this embodiment relates to a sound insulation device with a laminated structure, including a composite damping sound insulation material layer 1 , a hot melt adhesive layer 2 , a rubber damping layer 3 and a metal sound insulation layer 4 stacked in sequence.

[0035] Wherein, in this embodiment, the composite damping and sound-insulating material layer 1 is an ethylene-vinyl acetate resin / metal powder / rubber powder composite sound-insulating material layer, and the composite damping and sound-insulating material includes 100g of ethylene-vinyl acetate resin, 200g of metal powder and 40g of rubber powder, the thickness of the composite damping and sound-insulating material layer 1 is 5mm. Composite damping sound insulation material layer 1 is prepared according to the following steps:

[0036] (1) Put ethylene-vinyl acetate resin particles, metal powder, and rubber powder into a high-speed mixer and mix for 30 minutes according to the ratio of p...

Embodiment 2

[0043] This embodiment relates to a laminated structure sound insulation device. The difference between this embodiment and Embodiment 1 is that in this embodiment,

[0044] The composite damping and sound-insulating material layer is ethylene-vinyl acetate resin / metal powder / rubber powder composite sound-insulating material layer, and the composite damping and sound-insulating material includes 100g ethylene-vinyl acetate resin, 200g metal powder and 40g rubber powder. The thickness is 5mm. The composite damping sound insulation material layer is prepared according to the following steps:

[0045] (1) Put ethylene-vinyl acetate resin particles, metal powder, and rubber powder into a high-speed mixer and mix for 30 minutes according to the ratio of parts by mass in the formula, then take it out;

[0046] (2) Use a double-drum mill heated to 100°C to repeatedly mill the powder mixed in step (1) to plasticize it into sheets.

[0047] (3) Take an appropriate amount of open-smel...

Embodiment 3

[0052] This embodiment relates to a laminated structure sound insulation device. The difference between this embodiment and Embodiment 1 is that in this embodiment,

[0053] The composite damping and sound-insulating material layer is ethylene-vinyl acetate resin / metal powder / rubber powder composite sound-insulating material layer, and the composite damping and sound-insulating material includes 100g ethylene-vinyl acetate resin, 200g metal powder and 40g rubber powder. The thickness is 8mm. The composite damping sound insulation material layer is prepared according to the following steps:

[0054] (1) Put ethylene-vinyl acetate resin particles, metal powder, and rubber powder into a high-speed mixer and mix for 30 minutes according to the ratio of parts by mass in the formula, then take it out;

[0055] (2) Use a double-drum mill heated to 100°C to repeatedly mill the powder mixed in step (1) to plasticize it into sheets.

[0056] (3) Take an appropriate amount of open-smel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of sound insulation equipment, and in particular, relates to a laminated structure sound insulation device. A composite damping sound insulation material layer, a hot melt adhesive layer, a rubber damping layer and a metal sound insulation layer are sequentially arranged in a stacked mode, and a cavity is formed in the hot melt adhesive layer. The composite damping sound insulation material layer, the hot melt adhesive layer, the rubber damping layer and the metal sound insulation layer which are stacked in sequence are arranged, wherein the composite dampingsound insulation material layer has a certain damping property; sound energy can be consumed in forms of shearing, stretching and the like; the hot melt adhesive layer mainly plays a role in connecting the composite damping sound insulation material layer and the rubber damping layer; however, the cavity formed in the hot melt adhesive layer can attenuate sound energy and weaken the resonance anastomosis effect, the rubber damping layer and the metal sound insulation layer form a constraint damping sound insulation structure, all the layers are matched with one another, resonance and criticalanastomosis frequency can be staggered, and thus the light and efficient sound insulation effect is achieved.

Description

technical field [0001] The invention relates to the field of sound insulation equipment, in particular to a laminated structure sound insulation device. Background technique [0002] Noise pollution is one of the key issues that must be considered in the construction of power transmission and transformation projects. Distribution transformers are located at the end of the power transmission system and have the characteristics of being close to residential areas, large in number, and widely distributed. According to the provisions of GB12348-2008 "Environmental Noise Emission Standards at Boundary of Industrial Enterprises", residential areas belong to Class I acoustic environment functional areas. With the development of cities, the scale of residential areas continues to expand, resulting in the power supply burden borne by distribution transformers in residential areas. As a result, the noise emitted by the distribution transformers in the community often exceeds the limi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/00B32B15/06B32B7/12B32B25/00B32B25/04B32B15/18B32B33/00C08L23/08C08L21/00C08K3/08E04B1/82E04B1/86
CPCB32B7/12B32B15/00B32B15/06B32B15/18B32B25/00B32B25/04B32B33/00B32B2307/102C08L23/0853E04B1/82E04B1/86C08L21/00C08K3/08
Inventor 刘玉成曹春诚罗永利宫世民赵彬王帆段炼王鹏浩刘弋铭侯东聂京凯何强
Owner HULUNBEIER ELECTRIC POWER BUREAU OF EAST INNER MONGOLIA ELECTRIC POWER COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com