DE7232474U - Dishwasher with a sink holder and an ion exchanger with water supply via a free air gap and a diffuser - Google Patents

Description

R.No. Gi 527

August 30, 1972 Ka-Bo

'Attachment to
Utility model registration

ROBERT BOSCH HAUSGERÄTE GMBH, Giengen, Robert-Bosch-Strasse

Dishwasher with a washing container and an ion exchanger with fresh water supply via a free air gap and a Diffuser.

The innovation relates to a dishwasher with a washing container and an ion exchanger with fresh water supply via a free air gap and a diffuser, as well as with a the diffuser is a structurally integrated water collecting tank that holds the amount of water required to regenerate the ion exchanger absorbs via a second free air gap and delivers it to a salt container.

723247A.is.7a

In a known dishwasher of this type, the fresh water container is in the upper area of the dishwasher arranged to ensure sufficient pressure of the water collected in the water tank to flow through the in the lower area of the Dishwasher seated salt container to reach. However, since in the upper area of the dishwasher because of the Rinsing container is little free space, the innovation is based on the task of creating a water collection container with simple means to create a small thickness.

This object is achieved according to the invention by a flat water collecting container designed as a blow molded part, which between the washing container and a wall of the dishwasher cover is arranged.

An embodiment of the subject of the innovation is shown in the drawing. It shows:

1 shows a schematically illustrated dishwasher with an ion exchanger, in the supply line of which there is a diffuser sits, as well as a water collection container connected to the diffuser, which is connected upstream of a salt container,

Fig. 2 shows a longitudinal section through the with the diffuser νε ^ μηαβηβΓ Water collecting tank, on a larger scale, and

Fig. 3 is a section through the water collecting container along the Line III - III in Fig. 2, also on a larger scale.

In Fig. 1, 10 denotes a dishwasher, which has a washing compartment 11, an ion exchanger 12 for water softening and a container 13 for salt for regenerating the exchange mass of the ion exchanger. In the dishwasher 10 leads a fresh water supply line 14, which is branched into two lines 15 and 16, in each of which a water inlet valve 17 and 18 is located. The branch line 15 is connected to a line 19 which is structurally connected to a water collecting container 20 is united. A line 21 leads from the line 19 to the ion exchanger 12, which has an outlet 22 into the washing container 11.

The line 16 goes into one of the water collecting space 23 of the container 20 connected water supply line 24 via. Another line 25 connects the water collecting space 23 to the salt container 13, which is connected on the output side via a check valve 26 to the line 21 leading to the ion exchanger 12.

The water collecting container 20 is particularly flat as a blow molded part formed (Fig. 2 and 3). It has essentially two mutually parallel side walls 27 and 28 and is between the washing compartment 11 and a wall (not shown) of the dishes dishwasher cladding housed. For fastening the container 20 are two opposite zones of the side walls 27 and 28 of the water collecting container 20 with one another welded and provided with an opening 29, 30 each.

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Üio line 24 is through welded together, opposite one another Limited container wall sections and connected to the collecting container 20 Wasserauf. She goes from the bottom of the container 20 is on its connecting piece 31 connected to the line 16 with a throttle 32 to limit the water flow provided and opens at its upper end into the container. Inside the container 20 are close to the The confluence of the line 24 opposite sections of the two side walls 27 and 28 are welded to one another and form a baffle 33 for water flowing from the line 24 into the water collecting container 20. One on the ground of the water collecting container 20 molded nozzle 34 is for Connection of the line 25 leading to the salt container 13 is provided. The container 20 has one of its water collecting space 23 separate overflow channel delimited by opposing wall sections welded together, 35, which runs from the upper part of the container to the lower edge of the container. From here the overflow channel 35 is through a guide tube 36 continued to a water inlet 37 opening into the washing compartment 11 of the dishwasher (FIG. 1). The water collecting container 20 has an opening above the overflow channel 35 tion 38, which ver the water collecting space 23 with the outside air binds.

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When the water inlet valve 18 is open, the water collecting container flows 20 fresh water, which is in the water collecting chamber collects and under the influence of gravity into the salt container 13 drains slowly. The filled. "Water catchment area 23 continues incoming fresh water flows through the overflow channel 35, which thus determines the highest water level in the container 20. An air space remains above this water level, which is a free one Air gap 39 forms for the inflow of fresh water. When negative pressure occurs in the water supply network, the free Air gap 39 air is sucked into the supply line 24 and water is sucked in from the water collecting space 23 or from brine the salt container 13 prevented.

The connection piece 40 with the water collecting container 20 structurally The combined line 19 is with the line branch 15 and the connecting piece 41 with the line leading to the ion exchanger 12 21 connected (Figs. 1 and 2). In the direction of flow of the water, the line 19 has a vertically upward, arcuate one and a vertically downward portion. These sections are by welded together, opposite one another Wall sections of the container walls limited. A plastic injection-molded part is located in the downwardly directed line section 42 molded with a nozzle 43 and a diffuser 44. the The nozzle 43 and the diffuser 44 are coaxially arranged and by two webs 45 forming a free air gap 46

connected to one another, in the area of the free air gap 46 the line 19 has a bulged extension 47, from which a leak water channel 48 leads to the lower edge of the container 20 is. The water leakage channel 48 has a common partition wall 49 with the overflow channel 35 and is just like this with his free end inserted into the guide tube 36 (Fig. 1).

To fill the washing compartment 11 of the dishwasher 10 with softened water, the water inlet valve 17 is opened and fresh water is supplied to the nozzle 43 via the lines 15 and 19, The water jet emerging from the nozzle 43 flows through the free air gap 46 and enters the diffuser 44, which creates the Fresh water is fed through the line 21 to the ion exchanger 12, which releases it into the washing container 11 in a softened state. This in Leakage water occurring in small quantities in the free air gap 46 flows through the leakage water channel 48, the guide tube 36 and the water inlet 37 into the washing container 11.

In the case of negative pressure, air is sucked into the pipe network as a result of the free air gap 46, which air is drawn into the free end of the guide tube 36 bulbous surrounded leakage water channel 48 can enter. The partition wall 49 between the leakage water channel 48 and the overflow channel 35 prevents water flowing out through the overflow channel from being sucked in.

Claims (8)

ft I · I · I «Il I I I I I I Il t lit · I II I I Il Il I - 7 - Claims 1. Dishwasher with a washing container and an ion exchanger with fresh water supply via a free Air gap and a diffuser, as well as with one with the Diffuser structurally unified water collecting tank, the absorbs the amount of water required to regenerate the ion exchanger via a second free air gap and delivers to a salt container, characterized by a flat water collecting container designed as a blow molded part (20), which is arranged between the washing compartment (11) and a wall of the dishwasher casing is. 2. Dishwasher according to claim 1, characterized by a manner known per se from the lower edge of the container (20) outgoing and at the top of the container in this opening water supply line (24), which through seam-like welded together opposing container wall sections is connected to the container (20) and has a throttle (32) at its free end. 3. Dishwasher according to claim 1 and 2, characterized by two inside the container (20) in the region of the Water supply line (24) welded to one another, opposite one another Wall sections, that is, a baffle (33) for water flowing into the container (20) from the water supply line (24). 4. Dishwasher according to claim 1 to 3, characterized in that that the container (20) has a separate from its water collecting space (23), by mutually opposite, welded together wall sections has limited overflow channel (35) from the upper container part to the lower edge of the Container (20) runs. 5. Dishwasher according to claim 1 to 4, characterized in that that the container (20) has an opening (38) above the overflow channel (35). 6. Dishwasher according to claim 1 to 5, with an integrally formed on the container, a nozzle, a free air gap and a line having a diffuser for the ion exchanger, characterized by a nozzle (43), the free air gap (46) and the diffuser (44) having a plastic injection molded part (42) which is molded into the line (19). - 9 7. Dishwasher according to claim 6, characterized in that the line (19) in the area of the free air gap (46) has a bulbous extension (47) from which a leak water channel (48) is led to the lower edge of the container (20). 8. Dishwasher according to claim 1 to 7, characterized in that the overflow channel (35) and the water leakage channel (48) have a common partition (49) and with their free ends directly or indirectly an opening of the
Rinsing container (11) are assigned.