DE6753666U - DEVICE FOR TRIGGERING SWITCHING PROCEDURES DEPENDING ON A LIQUID LEVEL. - Google Patents

Description

RA. 575 87 7-27.9.68

STANDARD ELtKTRiK LORENZ
SHARED COMPANY
Stuttgart-Zuffenhausen
HeI Imuth-Hi rth-Str. 42

SEL / Reg. 11 751

Case: S. Heinze -5

Device for triggering shading processes Depending on

from a liquid level.

The innovation relates to a device for triggering of switching processes depending on the fluid level in a container, especially in the tub of washing machines.

For triggering switching processes depending on one Fluid levels are already various devices known, which consist essentially of an elongated measuring vessel made of insulating material, which is in communicating Vei— connection with the container for the liquid. In the measuring vessel are electrodes or at different heights Electrode pairs arranged through which when climbing or If the liquid level falls, certain shadow processes triggered, especially inlet or outlet valves be opened or closed.

In many cases, however, a safety device is required which prevents the failure of the level control. FI üssiokeit · overflows into your container. this can e.g. 3. happen in washing machines that the magnetically operated inlet or outlet jfenti Ie not funki "ionizing.

Fri / kl - 23.9.1968

675

E no. 6797

SEL / Reg. No. H 75t

Case. ^s - Heinze -5

urei: »device for» triggering switching devices 5a dependency

from a liquid level.

Directory of used! Designations

reference characters

1 2 3 4 5 6 7 8 9

Original language D / E

Measuring vessel

Ceiling I.

Chess electrode

pipe

counter

magnet

Stop liquid stain

if

Ratio E / D

SEL / RO0. 11 751 - 2 -

It is already known regardless of the contacts for the measurement of the liquid level an additional Provide contact when exceeding the highest Fluid level triggers a switching process. So is for example in DAS 1 232 542 for washing machines --such a contact is described in the event of a fault Eat SüssssrsiiiisufvsRti i and bslss exceeding the highest. Water level switches on the drain pump.

Weather it is from the German patent specification 861 15 ^ r ' known to be one in the regulation of liquid levels ηϊΐ a float connected and sliding into a tube To use magnets, which are connected to an electric coil via coils that are attached to the outside of a tube at a certain height Switching process triggers.

It is also known that in washing machines with a program control device a magnet provided with a float is its lower part between the tub and the drain
to be provided, which actuates an externally arranged magnetic switch at the end of the hater process and thereby switches the program control device on (German utility model 1 983 519).

According to the innovation, there is a new and advantageous arrangement proposed for a safety switch in which in the measuring vessel to the area of the highest permissible liquid level a RoKr, which is closed off to the inside of the Hessgefäß and protruding into it, is provided outside of a rail provided with a float, movable arranged magnet is surrounded and inside a magnetic Includes actuatable switch.

67536

- 3

SEL / Reg. 11 75! - 3 -

The .ieusrüHc. and the flour should be closer to the farther away.

The I'er.gefä'3 Ii, which is connected with the F I üssi okei tsbefcä I ter consists of a suitable insulating material. in the cover 2 suitable measuring electrodes 3 are arranged, the 2 for measuring the liquid level and for triggering Scha ί tVöFöänySfi ifi AuuaFiy f §ks! t VOm Γ} Ö33 ί §ke ί tSStäütu d ί StiSrt However, the electrodes can have a shape other than that shown.

According to the innovation, the tube 4 is provided, which is preferably is molded onto the cover 2. This tube 4 protrudes so far into the measuring vessel 1 that it is in the region of the highest permissible fluid level. Outside on the pipe, preferably the permanent magnet 6, which is carried by the float 7, is arranged so as to slide concentrically with this.

Inside the tube 4, the magnetic switch 5 is provided, a protective tube contact + switch for play I sv / iron. At the bottom At the end of the tube 4, the stop 3 is provided, on which the magnet 6 rests with the float 7 when the liquid level drops below the bottom of the tube 4. When the liquid level 9 is higher, the magnet 6 is by means of of the float 7 carried up and when the maximum permissible liquid level is reached it closes through the Action of the magnet 6 the contact of the magnetic switch 5, whereby a suitable switching process is triggered .. This can consist of a pump for pumping out the liquid is switched on and it can still be on at the same time Warning signal will be triggered.

With the device according to the innovation, there is an overflow circuit breaker completely independent of the electrodes for measuring the level of fitness and also of the circuit, which regulates the liquid level. It's supposed to be

SEL / Reg. 11 751

if the control fails, the liquid will not overflow. The necessary security is provided by sending a protective tube contact switch, which is located outside the heating tube.

Attachments :

5 protection claims

131. Drawing

1 Bi. List of the se drawings used

Claims (5)

Ρ.Α.575 »7? * 27.9.εΐ SEL / Reg. 11 751 claim for protection: 1.) Device for triggering switching processes in dependence on the liquid level In deß container, especially in the tub of washing machines, consisting of a closed with a lid measuring vessel made of insulating material, which is connected to the container in a communicating manner and contains heating electrodes arranged at different heights, thereby characterized in that in the area of the highest permissible liquid level a tube (4) closed to the inside of the measuring vessel (1), open to the outside and protruding into the measuring vessel is provided, in which a magnetically operated switch (5) is arranged and on the outside thereof ^? a nit eineo Schwimme- "(7)-provided permanent magnet (6) arranged to move st> that the switch is actuated upon exceeding the maximum permissible Flüssigkeltsstandes. 2.) Device according to claim 1, characterized in that the permanent magnet (6) with a float (7) ring-shaped and concentric and sliding is arranged on the tube (4). 3.) Device according to claim 1 and 2, characterized in that that the tube (4) at the bottom on the outside has a stop C8) to limit the movement of the float (7) provided magnet (6). 4.) Device according to claim 1 to 3, characterized in that that the tube (4) is molded onto the cover (2) of the measuring vessel CD. Is. SEL / Rec ,. 1 1 751 - 2 - 5.) Device according to claim 1 to 4, characterized in that that the switch (5) consists of a protective tube contact switch consists.