FR3020125A1 - HEATING BODY FOR THE GENERATION OF STEAM - Google Patents

Abstract

Heating body for steam generation, in particular for a household appliance comprising an enclosure (1) comprising: - at least one opening (2) allowing a water supply, - at least one other opening (3) allowing the extraction of water steam, as well as heating means (4), the heating means (4) consist of a plurality of pre-programmed ceramic resistors for operating at a precise temperature.

Description

The present invention relates to a heating body for steam generation, in particular for a household appliance. The commonly used heating bodies are composed of an aluminum body having intersites for the manufacture of steam and a conventional filamentary resistance consisting of a filament and magnesia powder for its insulation inside a metal tube. . The temperature can however reach very quickly 1600 ° C., which is detrimental to aluminum, which at this temperature melts practically instantaneously. This is why we use a first mechanical thermostat, coupled with a second, fuse, to cut the power supply in case of overheating. This system is expensive and above all unreliable, costly as a whole and unreliable. The present invention aims to provide a heating body to overcome the aforementioned drawbacks, in particular by avoiding the need to use a thermostat. The heating body according to the invention comprises an enclosure comprising: at least one opening allowing a supply of water, at least one other opening allowing the extraction of the steam, as well as heating means, and It is essentially characterized in that said heating means consist of a multiplicity of pre-programmed ceramic resistors for operation at a precise temperature or heating resistors composed of carbon fibers. The resistors can take different shapes, flat round, tubular ... and it is the mass and shape of the components of the resistor, essentially composed of ALO3 and ceramic, which determines its nominal temperature.

Preferably, it is intended to create a space between the inlet opening of the liquid to be heated and the closest resistance, to avoid excessive thermal shocks.

The resistors are arranged in the enclosure, or in contact with a wall of the enclosure. The advantages and characteristics of the device according to the invention will become more clearly apparent from the description which follows and which refers to the appended drawing, which represents several non-limiting embodiments thereof. In the accompanying drawing: - Figure 1 shows a schematic perspective view of a heating body according to the invention. - Figure 2 shows a schematic perspective and exploded view of the same heating body. - Figure 3 shows a schematic perspective view of another heater according to the invention. - Figure 4 shows a schematic perspective and exploded view of the same heating body. FIG. 5 represents a schematic perspective view of another heating element according to the invention. - Figure 6 shows a schematic perspective view of another heater according to the invention. FIG. 7 is a diagrammatic perspective and exploded view of the same heater. The appended figures show various embodiments of the heating body according to the invention, which comprise an enclosure 1, a liquid inlet opening 2, one or more steam outlet openings 3, and ceramic resistors 4.

Claims (1)

REVENDICATIONS1. Heating body for the steam generation, in particular for a household appliance comprising an enclosure (1) comprising: - at least one opening (2) allowing a supply of water, at least one other opening (3) allowing the extraction of the vapor, as well as heating means (4), characterized in that said heating means (4) 10 consist of a multiplicity of ceramic resistors preprogrammed for operating at a precise temperature or heating resistors composed of carbon fibers.