RU15827U1 - ELECTRIC HEATING PANEL - Google Patents

Description

ELECTRIC HEATING PANEL

1. The technical field to which the utility model relates.

The utility model relates to the electric power industry, in particular, to electric heating devices.

2. The prior art.

Currently, various electric heating devices are widely used in industry and everyday life for space heating (see, for example, Certificate No. 5898 dated January 16, 1998, No. 7265 dated July 16, 1998, No. 10969 dated August 16, 1999, No. 10970 dated August 16 .99g., No. 13251 dated 03/27/2000, No. 13416 dated 04/10/2000).

The closest analogue of the claimed device is an electric heater according to Utility Model Certificate No. 10969 of 08/16/99, consisting of two electrical insulating plates, on one of which a heating element made of chromium-nickel wire is located on one side, and is mounted by flashing from the back of the fastening cotton thread, and the connection of the plates is made of heat-resistant non-combustible polymer.

The disadvantage of this technical solution is that during operation of the electric heater in the surrounding space an alternating electromagnetic field is formed, which has an adverse effect on biological objects, including humans. The degree of exposure is determined by the parameters of the electric heater, as well as the time and proximity of a person being near the electric heater.

3. The essence of the utility model.

The aim of the proposal is to eliminate the adverse effects of the electromagnetic field generated during operation of the electric heating device on biological objects, including humans, and to increase

20001 15321

Authors: Maslov VV Miroshnik VV

electrical safety. This goal is achieved by the fact that the electric heating element is placed in a closed casing, which is made of soft magnetic sheet steel with high ferromagnetic properties, and reliably grounded.

4. The list of figures of the drawings.

In the drawing of FIG. presents a general view and section of an electric heating panel with the following digital designations of structural elements:

1- electric heating panel;

2- resistive electric heating element;

3- shell resistive electric heating element;

4- casing;

5- terminals for connecting the electric heating panel to the power supply network;

6- terminal for connecting the casing to З;

5. Information confirming the possibility of implementation

In the drawing of FIG. The electric heating panel with the main structural elements is shown. The electric heating panel 1 contains a resistive electric heating element 2 enclosed in a shell 3, an outer casing 4, terminals 5 for connecting the electric heating panel to the mains and a terminal 6 for connecting the casing to ground.

Resistive electric heating element 2 is made in the form of a flat electric heater according to one of three options. In the first embodiment, the resistive electric heating element 2 is made of a metal flat foil, laid in the form of a meander inside the shell 3, made of heat-resistant heat-conducting electrically insulating material. The foil is made of a material having a high electrical resistivity.

In the second embodiment, the resistive electric heating element 2 is made in the form of a web of carbon filaments enclosed in a shell 3 made of heat-resistant heat-conducting electrically insulating material.

utility model.

In the third embodiment, the resistive electric heating element 2 is made in the form of a plate of heat-resistant electrically insulating material, on which a resist layer coated with heat-resistant hydrophobic electrically insulating paint is applied in the form of a meander.

The thickness of the steel sheet from which the casing 4 is made is selected from the condition of possible magnetic saturation.

The proposed electric heating panel 1 operates as follows.

When applied to terminals 5, i is energized

the electric heating element 2 provides uniform heating of the electric heating panel 1 over its entire area. Due to the fact that it is made of soft magnetic steel with high ferromagnetic properties, the magnetic field generated by the passage of current through the resistive electric heating element 2 is completely localized inside the space bounded by the casing 4. The grounding of the casing 4 provides electrical safety and ensures the absence of an electric field outside the space, limited by the casing 4. Thus, as a result of eliminating the adverse effects of the electromagnetic field on biological objects ts, including human, ecological safety of an electric panel.

The practical implementation of the electric heating panel is not in doubt, as it is based on the use of well-known technological solutions.

Claims (4)

1. An electric heating panel comprising terminals for connecting to a power supply network and a resistive electric heating element enclosed in a shell made of heat-resistant electric insulating material, characterized in that the resistive electric heating element made in the form of a flat electric heater, together with a shell made of heat-resistant electric insulating material, enclosed in a closed casing, which is made of sheet soft magnetic steel and is grounded.  2. The electric heating panel according to claim 1, characterized in that the resistive electric heating element is made of flat metal foil laid in the form of a meander inside the shell made of heat-resistant electrically insulating material.  3. The electric heating panel according to claim 1, characterized in that the resistive electric heating element is made in the form of a web of carbon filaments enclosed in a shell made of heat-resistant electrically insulating material. 4. The electric heating panel according to claim 1, characterized in that the resistive electric heating element is made in the form of a plate of heat-resistant electrically insulating material, on which a resist layer coated with heat-resistant hydrophobic electrically insulating paint is applied in the form of a meander.