Dishwasher having means for changing heat dissipation

• US 8,616,225 B2
• Filed: 07/24/2008
• Issued: 12/31/2013
• Est. Priority Date: 08/13/2007
• Status: Active Grant

• Current Assignee: Miele & CIE KG
• Original Assignee: Miele & CIE KG
• Inventors: Druecker, Markus, Kara, Seyfettin, Seifert, Monika, Tiekoetter, Stefan, Wolf, Cornelius
• Primary Examiner(s): Barr, Michael
• Assistant Examiner(s): KLING, CHARLES
• Application Number:
  US12/672,939
• Publication Number:
  US 20110180116A1
• Time in Patent Office: 1,986 Days
• Field of Search: 134/56.D, 134/57.D, 134/58.D, 134/105, 134/107, 134/115.R
• US Class Current: 134/107
• CPC Class Codes: A47L 15/4209 Insulation arrangements, e.g. for sound damping or heat insulation
• CPC Class Codes: A47L 15/4246 Details of the tub A47L15/4272 takes precedence; insulation arrangements A47L15/4209

Abstract

A dishwasher includes a washing chamber surrounded by walls. The walls include a water-impermeable inner wall and an insulation layer. At least a first wall of the walls has in a first region on an outside thereof an emission changing device configured to change an emission of thermal radiation. The emission changing device includes a layer having a variable emissivity.

Claims

1. A dishwasher comprising:

a washing chamber surrounded by walls, the walls including a water-impermeable inner wall and an insulation layer, at least a first wall of the walls having disposed in a first region on an outside thereof an emission changing device configured to change an emission of thermal radiation, the emission changing device including a layer having a variable emissivity, wherein the layer is changeable in color as a function of the temperature thereof in a range between 50°

C. and 90°

C.

2. The dishwasher as recited in claim 1, wherein the emissivity of the layer is configured to be changed by pulses from a controller.

3. The dishwasher as recited in one of claim 1, wherein the layer of variable emissivity includes tiltable slats disposed on the region of the outside of the first wall.

4. The dishwasher as recited in claim 3, wherein the slats have a reflective surface and are movable from a closed position to an open position so as to produce a change in the emission of thermal radiation.

5. A dishwasher comprising:

a washing chamber surrounded by walls, the walls including a water-impermeable inner wall and an insulation layer, at least a first wall of the walls having disposed in a first region on an outside thereof an emission changing device configured to change an emission of thermal radiation, the emission changing device including a layer having a variable emissivity,

wherein the layer of variable emissivity includes tiltable slats disposed on the region of the outside of the first wall, the tiltable slats having a closed position facing the insulation layer and an open position.

6. The dishwasher as recited in claim 5, wherein the slats have a reflective surface and are movable from a closed position to an open position so as to produce a change in the emission of thermal radiation.