Dishwasher, in particular domestic dishwasher

Patent metadata

Field	Value
Publication number	US-2021145244-A1
Application number	US-201816611861-A
Country	US
Kind code	A1
Filing date	May 18, 2018
Priority date	May 23, 2017
Publication date	May 20, 2021
Grant date	—

Abstract

A dishwasher, in particular a household dishwasher, includes: a washing container having a washing compartment and which receives washing items to be cleaned; and a heat pump device which has an evaporator which is arranged within a tank filled with water. The tank is fluidically connected to the washing container and to a fresh water inlet device. The tank is arranged below the washing container and has a top wall facing a washing container bottom.

First claim

1 : A dishwasher, in particular a household dishwasher, comprising:
a washing container comprising a washing compartment and which is configured to receive washing items to be cleaned; and a heat pump device which has an evaporator which is arranged within a tank filled with water, wherein the tank is fluidically connected to the washing container and to a fresh water inlet device, and wherein the tank is arranged below the washing container and has a top wall facing a washing container bottom.

2 : The dishwasher according to claim 1 , wherein the top wall is oblique and/or runs substantially parallel to the washing container bottom at least in some of its sections.

3 : The dishwasher according to claim 1 , wherein the tank is arranged below the washing container except for a gap between the top wall and the washing container bottom, and
wherein a distance between the top wall and the washing container bottom is between 3 mm and 30 mm.

4 : The dishwasher according to claim 1 , wherein the tank has a first compartment and a second compartment, and
wherein the first compartment provides a nominal volume and the second compartment provides a filling volume.

5 : The dishwasher according to claim 4 , further comprising a storage tank fluidically connected to the tank, wherein the storage tank provides a storage volume, which storage volume is equal to or in line with the filling volume.

6 : The dishwasher according to claim 5 , wherein the tank is fluidically connected to the fresh water inlet device with fluidic interposition of the storage container.

7 : The dishwasher according to claim 5 , wherein the storage container is at least partially laterally adjacent to the washing container.

8 : The dishwasher according to claim 5 , wherein the tank and the storage container are formed in one piece.

9 : The dishwasher according to claim 5 , wherein the tank and/or the storage container are connected to a vent and/or an overflow.

10 : The dishwasher according to claim 1 , wherein a tank ventilation is formed at a highest point in a height direction of a particularly inclined top wall of the tank.

11 : The dishwasher according to claim 1 , further comprising a pump and/or a discharge valve integrated into a fluid connection between the washing container and the tank, and/or
wherein the fluid connection between the washing container and the tank comprises a siphon.

12 : The dishwasher according to claim 1 , wherein the tank has a base plate and a hood carried by it and providing the ceiling wall.

13 : A method for operating the dishwasher according to claim 1 , comprising:
supplying water located in the tank above the nominal volume to the washing container; and after completion of operation of the heat pump device, supplying the tank with an amount of water corresponding to the filling volume.

14 : The method according to claim 13 , further comprising:
forming an air cushion between a surface of the water in the tank and an inside surface of the top wall of the tank at the start of a washing program, and/or displacing an air cushion located between a surface of the water in the tank and an inner surface of the top wall of the tank as a result of the water supply after an operation of the heat pump device has ended.

15 : The method according to claim 13 , further comprising:
using a storage volume provided by the storage container as a compensating volume for the tank.

16 : The dishwasher according to claim 5 , wherein storage tank which is arranged above the tank.

17 : The dishwasher according to claim 12 , wherein the tank has an annular wall received by the hood and surrounding the nominal volume.

18 : The method according to claim 15 , wherein the storage container temporarily stores at least some of the water to be supplied to the tank.

Assignees

• Miele & Cie

Inventors

• Bertram Andre
• Dahms Tobias
• Steinmeier Ralph
• Nierling Andreas
• Schroeder Nils

Classifications

• A47L15/4291 Primary

  Recovery arrangements, e.g. for the recovery of energy or water · CPC title

• A47L15/4246

  Details of the tub (A47L15/4272 takes precedence; insulation arrangements A47L15/4209) · CPC title

• A47L15/4223

  Devices for water discharge, e.g. devices to prevent siphoning, non-return valves · CPC title

• A47L15/0023

  Water filling (A47L15/4244 takes precedence) · CPC title

• A47L2501/01

  Water supply, e.g. opening or closure of the water inlet valve · CPC title