RS20050682A - ELECTRIC ROOM HEATING OVEN - Google Patents

Abstract

Electric stove for heating of rooms in its housing has strip-like heater elements that cool off due to the natural circulation of air. Strip-like heater elements consist from two cross supports (11) coupled by a central support (14). Between the cross supports are set nonflammable insulating carriers (13). Insulating carriers have teeth. A ribbon of a heater (12) sets in and between the teeth. Insulating carrier (13) by its own width (17) makes a distance between the layers of the strips of heater elements, and by means of the width of the cogs (17) it makes distance between the layers of the adjacent strips, windings, in a layer. These distances make channels for circulation of air, so as to reduce the temperature of the strip.

Description

Electric stove for heating the rooms

Technical field

The invention belongs to the field of electrical energy to heat converters for heating rooms where people stay and the like. According to the international classification of patents /IPC/, the designation is:

Technical problem

The invention solves the problem of heating rooms by natural air circulation with a temperature on the surface of the electric heater that cannot cause a fire. It also solves the problem of the heater burning out, since the material of the heater permanently maintains its thermal and mechanical characteristics at a lower temperature.

State of the art

Heating of rooms with electricity is done by electric heaters with red-hot fiber. Due to the existence of high temperature, it is necessary to use it in such a way as not to cause a fire. Incandescent fiber has a limited life. In order to reduce the temperature of the heater, fans are used /heaters/ or the heaters are immersed in thermal oil /electric radiators/ and the like.

Presentation of the essence of the invention

The electric furnace for heating rooms has a heater in the form of a strip. The cross section of the tape is in the shape of an elongated rectangle. Hence, the perimeter of the rectangle is larger for a given cross-sectional area of the strip. A larger circumference gives a larger surface for cooling, and a larger surface lowers the excess temperature of the strip compared to the room air that cools it. The insulating holders with which the tape is in contact cover a small area of the tape.

The material for making the strip heater has an electrical resistance that enables the conversion of electrical energy into thermal energy at a lower temperature of the strip heater, which is cooled by natural air circulation to avoid the possibility of causing a fire.

Also, the lower temperature does not affect the internal structure of the heater, so it can be used longer.

The heater is placed in a housing that protects it from touching, but allows the necessary air circulation.

Brief description of the draft images

- picture 1 shows two projections of the housing,

- Figure 2 shows a cross-section of the housing to show the band heaters,

- figure 3 shows the electrical connection diagram,

- picture 4 shows a top view of the strip heater,

- picture 5 shows a side view,

- figure G represents view A to show the detail of the connection of the insulation support and the cross support, - figure 7 represents detail B to show the support of the heater strip on the insulation support,

- figure 8 shows the insulating bracket with teeth.

Detailed description of the invention

The electric stove for room heating, picture 1, consists of a housing 1, louvers for air circulation 2, supports 3, a safety device for the distance from the floor 4 and a heater 5. The housing 1 is cut along the AA axis, picture 2, in order to see the band heaters 5. The band heaters are fixed to the supporting frame 6. The housing 1 is also fixed to the supporting frame. The electrical connection of the band heaters is row, picture 3. The terminal R is fixed to the support 7, picture 2. By means of the clamp, the electrical connection with the connection cable 9 and the thermostat 10 with the signal lamp and the switch was made.

The strip heater, pictures 4 and 5, consists of two cross supports 11 connected by a central support 14. Between the cross supports 11, since they have the shape of a U profile, non-flammable insulating brackets 13 are placed, picture 6. The insulating brackets, picture 8, have teeth. Between the teeth lies the heater strip 12, pictures 6 and 7. Picture 6 shows a detail from picture 4, and picture 7 a detail from picture 5. The insulating support 13 with its width 15 creates a distance between the layers of the heater strips, and with the width of the teeth 16 it creates a distance between adjacent threads, i.e. adjacent lanes. These distances provide electrical isolation between the threads and the tape layers. In accordance with the idea of the invention, these distances create channels for the flow of air so that the strip of air molecules takes thermal energy. Air molecules on one side cool the tape and on the other side heat the room where the stove is located. Thus, in accordance with the idea of the invention, the temperature of the tape cannot cause a fire even in the case when a combustible material, for example paper, is in direct contact with the tape. This temperature of the tape does not disturb the internal structure, so the tape cannot "burn out" due to prolonged use of the furnace.

Claims (1)

1. The electric furnace for heating the premises consists of a housing /l/ and supports /o/, indicated by the fact that the louvers /2/ are on the longer sides of the housing /l/, and in the housing there are strip heaters /5/ in a regular electrical connection and they consist of a strip /12/ which is assembled between the teeth of a non-flammable insulating support /13/ whose ends lie in the U profile of the cross supports /li/ so the vertical /17/ and horizontal /18/ distances between the strips /12/ are obtained.