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Composite material for thermal insulation and sound insulation and method for the manufacture thereof as well as household appliance

A technology of composite materials and household appliances, which can be applied to other household appliances, household components, household appliances, etc., can solve the problems of sound insulation and heat insulation effects not being optimal, and achieve high thermal insulation and thermal conductivity, good isolation characteristics, high The effect of sound insulation

Inactive Publication Date: 2011-05-25
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite the application of expanded glass granules or expanded clay in the boundary layer, the acoustic and thermal insulation is not optimal

Method used

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  • Composite material for thermal insulation and sound insulation and method for the manufacture thereof as well as household appliance
  • Composite material for thermal insulation and sound insulation and method for the manufacture thereof as well as household appliance
  • Composite material for thermal insulation and sound insulation and method for the manufacture thereof as well as household appliance

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Embodiment Construction

[0023] figure 1 A section through a composite material according to the invention with a lower layer 1 , an intermediate layer 3 and an upper layer 2 is shown. The two outer layers 1 and 2 consist of a bituminous material which can be enriched with stone fines in a targeted manner. The advantage of the stone powder mixture is the increased sound insulation, since the stone powder has a better absorption potential than pure bitumen due to its specific density.

[0024] However, the stone powder mixing does not have to take place in the two outer asphalt layers, but can be present in only one of the two layers 1 or 2. However, it is expedient that when producing the composite material according to the invention, the outer asphalt layer does not accumulate stone dust and does not accumulate stone dust on the same scale as the lower layer, because for the construction of the connecting channels 4a to 4z the bitumen needs a certain viscosity and the stone powder Viscosity can be ...

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Abstract

The object of providing a composite material for thermal insulation and sound insulation, said material having a much better insulating effect than the prior art, is met by the composite material for thermal and sound insulation according to the invention, said material comprising individual flat layers of different materials, wherein at least three layers (1, 2, 3) are used and wherein the material of the outer layers (1, 2) is adapted for weaving through the at least one middle (3) layer. A granular stone layer is applied to an outer soft-meltable bitumen layer (1) with / without powdered stone filling, and on top of this at least one middle layer (3) is applied a final soft-meltable bitumen layer (2) with / without powdered stone filling, wherein the aggregate condition of both outer bitumen layers (1, 2) is selected such that soft-meltable bitumen of the top layer (2) flows through the at least one middle layer (3) to the bottom layer (1), finally cures in the bottom bitumen layer (1) and thus forms a weaving of the at least one middle layer (3).

Description

technical field [0001] The invention relates to a composite material for thermal and acoustic insulation and a method for its production. Furthermore, the invention relates to household appliances, in particular dishwashers or washing machines clad with a composite material for thermal and acoustic insulation. Background technique [0002] A sound and heat insulation of bituminous material, in particular metal washing containers of dishwashers, is known from DE 198 58 002 A1. Acoustic and thermal insulation made of bituminous material is mainly constructed from layers of bituminous material in which mechanical stabilization consisting of expanded glass granules or expanded clay is incorporated for increased thermal insulation in the boundary layer of the cleaning vessel sheet material thermal insulation layer. The boundary layer can additionally be provided on the container side with a contact adhesive which creates a heavy-solvable connection between the separator and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K11/168B32B3/06B32B5/16A47L15/42B32B11/12
CPCD06F39/12A47L15/4255G10K11/168A47L15/4246B32B11/02A47L15/4209B32B7/12B32B11/12B32B2250/03B32B2250/40B32B2264/101B32B2307/102B32B2307/304B32B2509/00
Inventor E·克拉森
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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