DE9408167U1 - Possibility of switching the various heating types of a steam ironing and cleaning device in accordance with the usual household security - Google Patents

Description

Possibility of switching the different heating types of a steam ironing and cleaning device according to

the usual household insurance

The innovation concerns the possibility of switching the various heating types of a steam ironing and cleaning device in accordance with the usual household fuse in order to avoid overloading the circuit and the fuse being triggered.

In the home it can often happen that the normal household fuse, especially a 10 amp fuse, is overloaded if several large appliances, such as a washing machine, electric stove, iron, etc. are operated on one circuit at the same time.

If devices are operated on the household network that combine several individual consumers that can be switched on and off at will, the usual household fuse can be overloaded by just one such device. This problem occurs, for example, with a steam ironing and cleaning device, where there are one or more steam boiler heaters that generate the required steam pressure in the boiler and also an iron heater and other consumers, e.g. for heating the ironing board.

The total power of all consumers easily reaches 3000 watts, so that operation on a 10 amp socket is not possible.

DE 41 24 550 describes a load management system in which a main consumer and a secondary consumer are coupled via a circuit breaker and an electrical control device. This is therefore an additional device for connecting two consumers.

US 4,915,162 describes a circuit in which the functions of a device that are switched on in a programmed sequence are coordinated in such a way that a maximum current is not exceeded. This control does not respond to the switching on of another device.

US 5,307,440 discloses a control unit for a steam generator that generates maximum steam output for several consumers with minimal loss of electrical energy. This means that there is coordination between the steam used and the switching on and off of the electrical power supply.

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The aim of the innovation is therefore to coordinate the simultaneous functions of the consumers in devices of the type described above in such a way that the total power required for operation does not exceed the available safety capacity.

This problem is solved with the features mentioned in claim 1.

The key feature is that the steam generator recognizes the connection of the iron and then coordinates the steam boiler heating and the iron heating so that the maximum total output specified by the fuse is never exceeded. This is achieved by coding the contacts of the combination plug system, which also brings together the control lines for the iron, the mains power supply and the steam connection for the iron and cleaning accessories, in such a way that by plugging in the plug for the steam iron, the steam generator is informed that the steam iron is now connected. The coding then tells a triac, which controls the heating output of the steam boiler heating, to reduce the maximum steam boiler output from 1,800 watts to a lower output of 1,200 watts. This means that the steam generator is only supplied with an output of 1,200 watts.

In a second embodiment, the power switching of the consumers is not carried out via a code, but via the iron thermostat, which as soon as the iron heating switches on regulates the triac for controlling the steam boiler heating.

All documents, including the summary, disclosed information and features, in particular the spatial configuration shown in the drawings, are claimed as essential to the invention insofar as they are new individually or in combination compared to the prior art.

The innovation is explained in more detail below using drawings showing several implementation options. The drawings and their descriptions reveal further key features and advantages of the innovation.

Showing:
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Figure 1: a first variant of a circuit possibility;

Figure 2: another variant of a circuit possibility.

Figure 1 shows the first embodiment with the steam boiler heater 2 for heating the system 1. The water in the steam boiler is heated with full heating power, provided that the iron is not connected.

After reaching a certain steam boiler pressure, which at the same time corresponds to a certain steam boiler temperature, the heater 2 is switched on via a pressure-30

switch 4 or optionally a thermal switch 5 is switched off. If the steam pressure in the steam boiler drops below its setpoint, the heater 2 is switched on again via the pressure switch 4 or thermal switch 5 until the required steam pressure is reached again.

If the iron is connected to the steam generator, this is detected and the heat output of the steam boiler heater is reduced using the triac 3. This allows the iron heater 7 to work at full power without the household fuse tripping due to overload.

If the iron 7 is unplugged and, for example, a steam cleaning device is connected to the steam generator, this is detected and the steam boiler heating can work again at full power.

Figure 2 shows another embodiment of the innovation. According to the innovation, the iron thermostat 6 now plays an important role. Independently of the switches 4,5, the iron thermostat 6 switches the heating via the triac 3 to low power if the temperature of the iron falls below a set target value. At the same time, the iron thermostat switches on the iron heating. The iron thermostat therefore acts as a switch between the steam boiler heating 2 and the iron heating 7 and therefore as a power limiter.

The function of the steam boiler heating 2 is therefore subordinate to the function of the iron heating 7, i.e., the water in the steam boiler can only be heated at full power as long as the temperature of the

iron is in the sol!temperature range.

Here the switching function of switches 4,5 is carried out via a triac module 3.

DRAWING LEGEND.J5 05

1 ironing and cleaning system

2 Heating

3 Triac module 4 Pressure switch

5 thermal switches

6 Iron thermostat

7 Irons

Claims (2)

Applicant: Planeta Hausgeräte GmbK 6 Co. Elektrotechnik KG, Algäuer Str. 17, 87719 Mindelheim Protection claims 1. Circuit option for a steam ironing and cleaning device for coordinating the total output of a steam boiler heating system and an iron heating system, characterized in that the iron {7) is connected via a combination plug system in which there is a code that is recognized by the steam generator (1), and that a control unit then regulates the output of the steam boiler heating system (2) accordingly, and the control unit contains a triac module (3, 8). Telex: 5-43 74 (palent-d) Tefegram address: patri-llndau Housekeeping:. RannertälOi J , J D-8813iU$l£ft*i* J ·· · nkkogten:.. Postal checking account Munich
414848-808 [3U 70010080] 2. Circuit possibility of a steam ironing and cleaning device for coordinating the total output of a steam boiler heating system and an iron heating system, characterized in that the coordination of the steam boiler heating system (2) with the iron heating system (7) takes place via an iron thermostat (6) which is designed as a changeover switch, whereby the steam boiler heating system (2) is controlled via a triac module when a certain steam boiler working pressure is reached and switched off via switches (4, 5).