DE1942215U - HOUSEHOLD DISHWASHER. - Google Patents

Description

Γ / 4 / h Π ΓΙ -in r-CONSTRUCTAWERKE * ^L '' ° U (3 4 * / [j, 5

GMBH PVA c

^Aktz - C 8627 / 34e Gm

Household dishwasher

The innovation concerns a household dishwasher with it built-in steam generator.

In dishwashers it is known to remove the hard washing water that adheres to the washed dishes after the last wash cycle precipitated limescale with soft or lime-free water abssu-L en.

The processing of hard water into soft water, e.g. by means of Base exchange or electrochemically working softeners are associated with a relatively high technical effort. It was therefore already suggested at the end of the last late phase to evaporate a small amount of water inside the rinsing container, wherein the steam acts on the wash ware and condenses on the latter. The limescale adhering to the harness is then removed from the drainage Condensate washed away. Dishwashers, which are introduced with one in the dishwasher housing an electrical heating resistor and a Sehale containing the water to be evaporated have a separate one Water inlet to the evaporator dish. After each steam rinse, the bowl must be refilled with water, for which purpose

- ι - 4.5.1966

Gi / Mg

PVA 2/11 (official form) 1000 12.63

PVA C 145 Gm

the known winding machines special, provided with valves Pipelines, are required. In automatic dishwashers, it is necessary to remove these valves from the To switch the program control device of the machine. The technical effort is therefore of the latter also in the case of the dishwashers Kind of remarkable »It is therefore the task of the innovation in dishwashers equipped with evaporators to remedy existing disadvantages by a new design of the evaporator and arrangement in the rinsing container.

This object is achieved according to the innovation in that the steam generator in a recess covered by a sieve in the Is located at the bottom of the washing compartment and consists of an evaporator that is open to the washing compartment space and accommodates an electric heating element. trough exists. This new shape and arrangement of the steam generator eliminates the need for the known dishwashers required pipes and valves. Due to that the steam generator is equipped in the form of an evaporator trough open to the dishwasher compartment, the latter becomes during the washing operation constantly flooded with water. If the last rinsing liquor, which has almost pure rinsing water, is removed from the rinsing container drained, an amount of water corresponding to the capacity of the evaporator trough remains in the evaporator. Will now the electric heating element located in the evaporator trough is switched on, so the amount of water contained in the evaporator trough evaporates, where - as is known - the steam condenses on the dishes and washes away the limescale. As is well known, forms limescale deposits in the evaporator that have to be removed from time to time,

4.5-66

Gi / Mg

PVA C 145 Gm

Due to the fact that the evaporator trough open to the washing compartment after removing the sieve covering the recess is easily accessible, the removal of the limescale does not present any particular difficulties »

The steam generator and the water heater can be separated from each other. But it can also be the evaporator heater be part of the water heater or be identical to this. In the latter case, a possibility must be provided to keep the evaporator heater energized to be able to set when a switch responsive to the amount of water in the rinsing container is open. For this purpose there is a steam generation switch arranged parallel to the safety switch actuated depending on the liquid level. With automatic The steam generator can be switched on and off using the program control device when the dishwasher is in operation.

In the drawings is the dishwasher formed according to the innovation for example and shown schematically. Show it

1 shows a cross section through part of the dishwasher,

2 shows a cross section through a steam generator

FIG. 1 shows part of a dishwasher with a washing container and a basket 2 accommodated therein for receiving the dishes. In the bottom 3 of the container, the evaporator trough 6 with the heating rod 7 is located in a depression k - in the so-called sump. A drain pipe 8 is guided centrally through the recess, the

- 3 - 4.5.1966

G i / Mg

PVA C 145 Gm

The confluence is located in the Siebotoerflache 5 and opens into a pump, not shown. The contaminated liquor is driven into a higher drain by means of the pump. Below the recess 4 there is the water inlet connector 9 and, in its vicinity, a water outlet connector 10 which leads to a further pump 11. A pressure line 12 of the pump forks in an electromagnetically adjustable three-way valve 13 into a branch 14 which leads to a spray tube 15 and another branch 16 _f ′ which leads to a spray tube 17. Several spray tubes can be attached to each side of the washing compartment 1. A further heating rod 18, which is used to warm up the liquor contained in the washing compartment 1, is arranged within the recess 4. A thermostat 19, in conjunction with a switch, not shown, regulates the temperature of the washing solution. A pipeline 20 with a small cross-section is connected to the recess 4 and carries a dynamic pressure meter 21.

A plunger 22 of the dynamic pressure gauge acts on a switch 23 in the circuit of the heater 18, so that the heater for heating the Fleet can only be switched on at a predetermined minimum water level in the container. One operated by a program controller Sehalter 25 acts on a switching contact 26, which the branch for the heating element 7 of the evaporator switches »

As can be seen in particular from FIG Rinsing container of between 0.09 and 0.2 nr a capacity of between 0.1 and 0.75 1 of water. The trough can be formed from a longitudinally divided tube, in the curvature of which the

- 4 - 4 5.1966

Gi / Mg

PVA C 145 Gm Heating rod 7 is attached. I.

For the steam action cycles, i.e. soaking cycle and rinsing cycle, a switching contact is closed via the program control device 25. As a result, the heating rod 7 is switched on, so that the water contained in the trough 6 evaporates. The rising steam passes through the openings in the sieve 5 into the interior space Rinsing container 1 and acts there on the dishes and the container found parts. The steam condenses on the dishes and partially runs back into the evaporator trough 6.

During the rinse cycles, the water contained in the recess will be fed through the outlet 10 to the pump 11 and optionally fed to the spray tubes 15 and 17 via the electromagnetic valve 13, The rinsing water runs through the openings in the sieve 5 into the recess back, from where it is driven back into the container.

It will be understood that the evaporator is heated by the heating rod 18 can be, where you can put the switch 26 so that he can Switch 23 bridged during soaking and / or during the fine rinse cycle.

A manually operated switch 29 is used to turn on the heating rod and the program runx ^ Erk, for example, to the dishes to warm up.

2 claims for protection

- 5 - 4.5.1966

Gi / Mg

Claims (1)

^Α ^ 6 OGHO. 5.66 CONSTRUCTAWERKE GMBH PVA c 145 ^Aktz C 8627 / 34e Gm Eye protection requirements 1. Household dishwasher with in the lower part of the Gesohirrsplilin machine housing built-in, from a shell and an evaporator consisting of an electrical heating resistor, characterized in that the evaporator (6, 7) is located in a recess (4) in the bottom of the Sptilbehälters (1, 3) covered by a sieve (5) and consists of a v © rdampfermulde (6), which is open to the washing compartment space and accommodates an electrical heating resistor (?). 2. Household dishwasher according to claim 1, characterized characterized in that the evaporator (6, 7) © in Is part of the heater (18) for generating warm water or is identical to it. > M ■ * i * - ■ ! v. _e , - »■ ·· -> ur ~ - ■■■ ** .j«;. ulwsnfra 3ir. <; e $ 6hen lerdef. W Vntroo / vefden hie ' OinKii «? Filsefl delivered Oeuheh«? O »* n» «W eebrouchtmost * sl * ile 4.5.1966 Gi / Mg PVA 2/11 (Amlsbogen) 1000 12.63