Electric heating device

 

(57) Abstract:

The invention relates to the field of electrical engineering and can be used as a flexible electric heaters in industry and in everyday life, for example, for space heating when placed on the floor, walls or ceiling and for heating the mobile space, for example, mobile laboratories, etc., the Technical result of the claimed invention is to improve electrical safety and ecological compatibility of the device. In the electric heating device, consisting of electric heating elements, each of which contains at least one heating section, made in the form of a flexible film structure, one of the inner layers which contains a resistive heat-generating elements and the conductive bus, each of which is located along the side of the electric heating element, a resistive heat-generating elements of each section are electrically connected to respective conductive tyres, resistive heat-generating elements and the conductive bus made electrically isolated. The device comprises a flat connection cable, consisting of not less than 3 lived posted on surveillance conductive wires flat cable with conductive tire heating sections are made transverse through hole, which are placed in the electrical connecting elements for electrical connection of each of the feeding lived flat cable with the corresponding conductive bus electric heating elements. 1 C.p. f-crystals, 5 Il.

The invention relates to the field of electrical engineering and can be used as a flexible electric heaters in industry and in everyday life, for example, for space heating when placed on the floor, walls or ceiling and for heating mobile facilities, such as mobile laboratories, etc.

Known flexible composite heater described in the patent of Russian Federation N 2055446, CL H 05 3/34, publ. 27.02.96, containing placed inside the insulating layer, conductive layer, the edges of which there are two electrodes, connected to two conductive cable conductors, each lived with insulation, and over the insulated conductors imposed shell.

To the disadvantage of the known device should include the fact that it can only be made in advance of a given size and, therefore, it is impossible to heat the unknown surface. In addition, the device does not contain satellite not contains thermostat, the lack of which does not exclude the possibility of overheating of the device.

It is also known continuous webs of resistive film, as described in the application for French patent N 2203253, CL H 05 3/36, publ. 10.05.74, made in the form of a continuous web of the resistive film with fuel longitudinal metal strips connecting periodically spaced transverse conductive strips meander patterns placed between the insulating films. This fabric can be formed heating element (section) by cutting the fabric in a certain way on a line transverse to the conductive strips.

The disadvantage of this canvas is no possibility of forming the heating element of several sections, and, in addition, the device does not have the ability to connect to the power cable, so it is not ready the device, and the source material for its formation.

Closest to the claimed invention is a heating device of the modular structure described in the application for French patent N 2704629, CL F 24 D 13/02, publ. 04.11.94, consisting of a thin resistive metal film placed IU the nutrient elements.

However, this device is really quite complex topology of the mutual placement of the heating elements and the supply of tyres, and the place of connection of supply tyres and power cable made using the electrical connector with the bare contacts and a large thickness, and therefore, the known device can only be installed on the ceiling, on the basis of security requirements, to avoid touching the bare contacts.

Most of the thickness of the connector is an obstacle to the creation of the planar heating device. In addition, this device does not have an electromagnetic screen and controller. No screen also requires the placement of a heating device safe from person distance (in fact, only on the ceiling). The lack of temperature control means that, when the conditions of the heat transfer device may overheat.

The technical result of the claimed invention is to eliminate the above drawbacks inherent in prior devices.

This technical result is achieved in that the electric heating device comprises an electron is in the form of a flexible film structure, one of the inner layers which contains a resistive heat-generating elements and the conductive bus, each of which is located along the longitudinal sides of the electric heating element, and the resistive heat-generating elements of each section are electrically connected to respective conductive tyres, resistive heat-generating elements and the conductive bus made electrically isolated.

In addition, the device comprises a flat connection cable, consisting of not less than 3 lived placed on or under sections electric heating elements, electric heating layers of elements in the intersection of conductive wires flat cable with conductive tire heating sections made of transverse through holes, which are placed in the electrical connecting elements for electrical connection of each of the feeding lived flat cable with the corresponding conductive bus electric heating elements.

The terminals of the electrical connecting elements crossing the layers of the heating sections is made conductive, and the upper and lower kryspinowie and ground wires which are connected with the corresponding conductive and grounding conductors of flat cable through a flat electrical connector, completed isolated.

The supply cable of the device is equipped with a thermostat designed to control the heat level. One of the possible variants of realization of the device may be one in which the other end of the power cable is connected via the controller to the mains.

Butt the ends of the conductive tyres electric heating elements and the free end of the ends of the conductive wires flat cable sealed. On the outer side sections of the electric heating element is an electromagnetic shielding layer.

Moreover, in the electromagnetic shielding layer is made of at least one of through a transverse hole aligned with the corresponding hole made in the ground conductor flat cable, this hole is placed a conductive rod of the respective coupling element intended for connection of the grounding conductor flat cable with electromagnetic shielding layer.

The design of the device illustrated by the drawings.

General view of the flat electric heating device designed for the way trojstvo film consists of electric heating elements (1), flat cable (2), electrical connecting elements (3), flat electrical connector (4), power cable (5), a controller (6), the device for connection to mains (7), the electromagnetic shielding layer (8), the end sealing fittings conductive tyres electric heating elements and the conductive flat lived flat cable (9).

As the film electric heating elements can be used such as shown in Fig. 2 made in the form of a continuous roll of material with longitudinal metallic conductive tire (10) and transverse graphite fuel strips (11) connected to the conductive tires. Tires and fuel strips are located in the middle of the rolled material and closed at the top and bottom electrically insulating films (12). Graphite fuel strips are usually combined into groups by length of 0.5 m for the convenience of the selection of heating power and installation, but in fact the rolled material can be cut parallel to the fuel strips anywhere. In Fig. 2 shows the film heating elements above and in section, and the conductive bus and the bus does not have isolation.

In Fig. 3 shows a top view in section of flat cable, and the conductors (14) of the cable on all sides securely isolated electrically insulating film (12) and only on the transverse end faces (13) are not isolated.

For forming an electric heating device for a specific surface heating (see Fig. 1) cut the heating elements of the rolled material and arranged so that the conductive bus neighboring strips lying one above the other. Transversely to the longitudinal axis of the heating elements is laid flat three-wire connecting cable. In particular this example uses two segments connecting cable. Then in the place of installation of the connecting elements (3) are performed through holes so that they were within the conductive tire heating elements and conductive wires of the connecting cable. In Fig. 4 shows the connection in the cut. Connectors provide electrical connections to the tire (10) and lived (14) through the conductive rod (15), as well as electrical insulation and sealing of joints through the upper and lower insulating covers. (13) conductive tyres and lived isolated and sealed, for example, using an insulating film with an adhesive layer.

Collected in this way the electric heating device is covered with the electromagnetic shielding layer (6), for example, in the form of duplicated aluminum foil. To connect screen to ground residential connection cable run through holes in the same way as it was shown above. The electrical connection of the grounding conductor with the screen is the same connecting elements (3), as the connection has lived and tires.

For power supply on a flat connection cable he is using a flat connector (4) is connected with the supply cable (5). In Fig. 5 shows the connector in the cut. The connector is the minimum thickness to ensure easy operation electric heating device on the floor. The connector has an insulating housing (17), inside of which are all compounds (18). To improve sealing flat connector, the internal space can be filled with a sealant.

thermostat allows you to obtain controlled heating, reduce energy consumption, improve the safety device.

Electric heating ustraivaetsa top carpet linoleum or other similar floor and is included in the electrical network. Current flows down the fuel lines, causing a uniform heat over the entire heated surface. Through reliable and tight connection of all elements of the electric heating device secured its operation directly on the floor. Planar and film design of all elements of the device allows to quickly execute its Assembly and disassembly without construction.

Thus, the invention allows to simplify and accelerate the installation of electric heating devices on the heated surfaces and, in particular, directly on the floor without creating inconvenience to users, provides a uniform thermal field and the ease of building any number of sections during the formation of the electric heating device intended for heating surfaces of any configuration without involving complex operations modifying the design of the device. The invention differs from known convenience and reliability of connection to a power source, suitability for mass production and consumption in the safe will Espanol temperature, eliminates overheating of the electric heating device and reduces power consumption.

Proposed implementation of the invention is one possible that without changing the essence of the described invention can find application in various fields of human activity.

1. Electric heating device, consisting of electric heating elements, each of which contains at least one heating section, made in the form of a flexible film structure, one of the inner layers which contains a resistive heat-generating elements and the conductive bus, each of which is located along the longitudinal sides of the electric heating element, a resistive heat-generating elements of each section are electrically connected to respective conductive tyres, resistive heat-generating elements and the conductive bus made electrically isolated, characterized in that the device comprises a flat connection cable, consisting of not less than 3 lived placed on or under sections electric heating elements, in layers of electrical heating elements in the intersection of conductive wires flat Soea, which are placed in the electrical connecting elements for electrical connection of each of the feeding lived flat cable with the corresponding conductive bus electric heating elements, electric rods connecting elements crossing the layers of the heating sections is made conductive, and the top and bottom of the connecting elements are isolated, in addition, the device contains a power supply cable, conductive and grounding wires which are connected with the corresponding conductive and grounding conductors of flat cable through a flat electrical connector made insulated butt ends of the conductive tyres electric heating elements and the free end of the ends of the conductive and grounding lived flat cable sealed, the other end of the power cable configured to connect to the mains, on the outer side sections of the electric heating elements located shielding layer, and the shielding layer is made of at least one of through a transverse hole aligned with the corresponding hole, volnovodami rod of the respective connecting element, intended for connection of the grounding conductor flat cable with a shielding layer.

2. Electric heating device according to p. 1, characterized in that the mains cable is equipped with a thermostat designed to control the level of heating of the electric heating device.

 

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