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Washing machine

A technology of washing machine and embedded parts, applied in the field of washing machine, can solve the problems of complicated outer tub and expensive manufacturing steps and the like

Inactive Publication Date: 2012-01-25
ELECTROLUX HOME PROD CORP NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The applicant has noticed that although in the washing machine disclosed in DE4332684 the energy consumption is saved compared with the energy consumption of the washing machine without the heat insulation layer due to the heat insulating sheet arranged around the whole outer tub, the outer tub itself is very Complex (hollow and formed by a multi-layer structure), and thus require several expensive manufacturing steps

Method used

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Experimental program
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Embodiment 1

[0069] exist figure 2 and 3 The outer cylinder 10 shown is composed of or polypropylene filled with mineral fibers (talc, calcium carbonate, etc.) or metal fibers or glass fibers, and the outer cylinder comprises a single insert 30 mechanically fastened to the outer surfaces of the front and rear shells 20 . The insert is formed from expanded polyethylene with a thermal conductivity equal to 0.044W / (mK) and approximately 30-40kg / m 3 Density.

Embodiment 2

[0071] The outer surface 22 of the shell 20 is coated with an airgel coating, which may cover all or part of the surface of the shell. The thermal conductivity of the coating is about 0.017 W / (mK) and the thickness of the insert 30 obtained is about 0.2 mm. The insert 30 can withstand a temperature range of -40°C to 125°C.

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Abstract

The invention relates to a washing machine comprising a tub (10) including a shell (20) being delimited by a wall (25), the shell being molded as a single piece of polymeric material; the shell (20) includes at least an insert (30) connected to the wall (25), the insert (30) being realized in a material having a thermal conductivity lower than the thermal conductivity of the material forming the shell (20) in order to locally insulate the shell where the insert is located.

Description

technical field [0001] The invention relates to a washing machine comprising an outer tub adapted to accommodate a rotatable drum inside which a washing / drying load is placed. [0002] In this application, the expression "washing machine" refers both to a "standard" washing machine suitable only for washing and rinsing laundry, and also to a washer-dryer suitable for washing, rinsing and drying laundry. Background technique [0003] In the field of household appliances, the need to save and reduce energy consumption is very urgent. In fact, as consumers have become increasingly aware of the impact household appliances have on total energy consumption, it is important for manufacturers that their appliances be classified as belonging to a low energy consumption category such as Euro A, A+ or A++. [0004] Therefore, in the field of washing machines, manufacturers usually try to suitably modify their products to meet the above-mentioned demands. [0005] A disadvantage of mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F37/26B29C45/14
CPCD06F37/264D06F37/261D06F37/26
Inventor M·菲利佩蒂F·特里维林M·切洛托
Owner ELECTROLUX HOME PROD CORP NV