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.
FIELD: furniture, particularly heated furniture piece that may be used in home, possibly for medical-prophylactic purposes.
SUBSTANCE: furniture object includes support for engaging with user having on surface layer of mineral material selected from group containing ceramics and natural stone. Support is provided at least with one electric heating device mounted at least on part of its surface turned to user and placed under layer of mineral material. Said device is in the form of panel electric heater irradiating heat for heating layer of mineral material along its thickness in temperature range 30-50°C in order to generate in said layer elastic acoustic waves in ultrasound and hyper-sound bands. Support is provided with unit for controlling temperature of heating layer of mineral material under which respective panel of electric heater is arranged.
EFFECT: enhanced comfort, intensified process of metabolism of user, keeping healthy state of user and providing prophylaxis of diseases due to heat action upon organism of user.
9 cl, 2 dwg
FIELD: production of fabrics which generate heat by means of power source and may be used for manufacture of clothing, seats, quilts, etc.
SUBSTANCE: thermal fabric comprises non-conductive thread, heating thread with positive temperature coefficient, and two current-conductive terminals. Heating thread comprises core, enclosure made from matrix including embedded current-conductive particles, and isolating sheath.
EFFECT: provision for creating fabric free of wires and possessing the function of self-regulating heating.
29 cl, 5 dwg
FIELD: electric engineering, in particular, electrothermics, concerns engineering of electro-heating fabric, which can be used in heating devices for home and industrial use, and also concerns method for producing electro-conductive resistive thread for said fabric.
SUBSTANCE: electro-heating fabric is a cloth formed of intertwined threads, consisting of main non-electro-conductive threads, having first direction, and electro-conductive resistive threads, having second direction, perpendicular to the first one, each one of which consists of central fiber with cover of polymer resistive material, containing carbon filler, consisting of technical carbon and graphite, and provided with conductive threads, main non-electro-conductive threads and electro-conductive resistive threads are intertwined in form of mesh, forming cells, value of step h between electro-conductive resistive threads is determined from mathematical expression. Technical result is also achieved, because method for producing electro-conductive resistive thread, including production of solution of polymer resistive material by diluting polymer binding agent in solvent and mixing of resulting solution with carbon filler, then applying of produced mixture in form of cover onto central fiber by drawing it through solution and draw plate, removing solvent from resistive cover by drying the thread in a flow of hot air, while as polymer binding agent, polyurethane resin is utilized, as central fiber, a thread of polyacrylnitrile fiber is utilized or combined fiber of basalt and polyester fibers, draw plate is mounted in vertical position with possible rotation around its axis and with possible inclination of its vertical position, while lower aperture of draw plate is dipped in solution of polymer carbon-containing resistive material and has larger diameter, than upper aperture, while drying of thread is performed at temperature 150-160°. Angle of inclination of draw plate from vertical position is 10-20°.
EFFECT: stable electrical resistance along whole length of product being produced, reliable electrical contact, method for producing electro-conductive resistive thread also provides for lower costs of product due to creation of continuous process.
2 cl, 4 dwg, 1 tbl
FIELD: electrothermy, electric heaters such as fiber-plastic ones for medicine, agriculture, liquid and gaseous media heating devices for various industries.
SUBSTANCE: proposed woven resistor unit has electricity conducting and heat liberating threads disposed in parallel with power electrodes made of tinsel threads and separated from them by insulating threads; uniformly distributed perpendicular to electricity conducting and heat liberating threads and tinsel threads of power electrodes throughout resistor unit length are additional and current-distributing electrodes made of tinsel threads. Manufacture of woven resistor unit involves cutting of resistor unit blank of desired geometry from current-conducting fabric followed by cutting peripheral zones of all current distributing electrodes and some of peripheral zones of additional electrodes in pack of insulating threads contacting power electrodes on one end and pack of electricity conducting and heat liberating threads, on other end; peripheral zones of additional electrodes are cut out of alternating sides of pack of electricity conducting and heat liberating threads for switching circuit of desired resistor unit; terminal current conductors made, for instance, from copper foil run over with tin and provided with power cord are attached to edges of power and additional electrodes of resistor unit.
EFFECT: enhanced electric safety and reliability of woven resistor unit.
2 cl, 7 dwg
FIELD: electrical engineering; thermoelectric mats for heating concrete, soil, fillers, and the like.
SUBSTANCE: proposed thermoelectric mat has layer-by-layer arranged external moisture-proof insulating coating contacting surface being heated in the course of mat operation, heating element made of at least two parallel strips of flexible nonmetal current-conducting material separated by insulating inserts and provided with electrodes at edges, internal insulating layer, heat-insulating layer, and moisture-proof coating; thickness of external moisture-proof insulating coating where h is thickness of external moisture-proof insulating coating; K1 = 0.01 - 0.03 is factor depending on kind of material being heated; K2 = 0.01 - 0.06 is factor characterizing strength of external moisture-proof insulating coating material; S is thermoelectric mat surface area; internal insulating layer is disposed under elastic conducting strips at distance of minimum 1 mm therefrom.
EFFECT: enlarged service life of thermoelectric mat.
1 cl, 2 dwg
SUBSTANCE: method of cure includes mode of magneto-therapeutic influence by single-directed magnetic field and/or mode of simultaneous influence of hyperthermia and magnetic therapy at values of magnetic induction of 30-50 mT and temperature of 40-55°C while temperature alternately changes within 40-55°C at temperature gradient of 0,1-1°C per second. Device has two plates for therapeutic influence. Plates are connected together by elastic connecting member and provided with cases made of plastic mass. Plastic mass tightly embraces magnetic filed sources, disposed in it, and heating wires. Heating wires are connected with electric power unit through current input member. Electric supply unit is made for periodical interruption of voltage supply onto heating wires made of Ni-Cr alloy. Magnetic field sources have to be permanent magnets embraced with turns of heating wires. Electric supply unit has voltage converter. First output of converter is connected with input of processor; output of converter is connected with first input of switch. Voltage converter has its second output connected with second input of switch; output of switch has to be output of electric supply unit for connecting to heating wires.
EFFECT: simplified design; improved efficiency of cure.
9 cl, 4 dwg
FIELD: flat electric heaters of emitting type, in particular, film electric heaters, used as a basis for creating radiation heating systems of industrial, social, cultural and inhabited rooms, and also in systems for heating young animals and birds.
SUBSTANCE: film electric heater contains meander-shaped thin resistive heating and emitting element made of foil in form of continuous ribbon of precision current-conductive material, positioned between two flexible thermo-resistant electro-isolating films and provided with contacts for connection to electric network. The electric heater is provided with emitting element in form of aluminum foil, mounted between external electro-isolation film and resistive heating and emitting element, and separated from resistive heating and emitting element by electro-isolating film, no more than 30 micrometers thick. The distance between adjacent edges of parallel stripes of resistive element equals 20-100 millimeters.
EFFECT: reduced flow of precision material and increased reliability due to reduction of total length of current-conductive section of heater.
2 cl, 1 dwg
SUBSTANCE: invention is attributed to electric engineering, in particular to multilayer thermostatic pack for temperature control of complex geometric configuration products which contain outer and inner protective layers between which there are mated heat-insulation inserts and strips of current-conducting material with dielectric layers. Multilayer pack follows the geometry of temperature-controlled product. The case is made of separate sections whose layers are formed by dust-proof-and-moisture-proof fabric with textile fasteners interconnected along conjugation lines at joints of heat-insulating inserts which are additionally fixed by mechanical clamps. In this multilayer pack its top part consists of tapered portion and cylindrical portion made of separate sections in the form of a book consisting of two or more mechanically interconnected components where terminating component is fitted with apron with through holes in fabric. In this multilayer pack, resistive components in peripheral zone of current distributing electrodes are located in the array of insulating fibers with interlacing, are cut through alternately on one and on the other side of electric-conducting fiber band. Resistive components together with power electrodes form switching comb of specified resistive component. On tips of power and current-distributing electrodes, tinned foil copper tinned is soldered. Power cords are passed through multilayer pack mass. Each of separate sections along product generatrix are interconnected in series and in parallel by electric connectors.
EFFECT: improvement of operability and operation reliability of multilayer pack for temperature control of complex geometric configuration products.
3 cl, 11 dwg
FIELD: air transport.
SUBSTANCE: device contains thermal mat made of flexible woven electric heater closed by protective electric insulating material. Water repellent material and double layer of heat insulation and water repellent are placed at internal and external surfaces of protective electric insulating material. There is DC power supply source. Thermal mat is divided into number of sections, each having its heating area. Sections of flexible woven electric heater are divided into number of units with different power defined by preset length and width of flexible woven electric heater. Thermal mat is fixed at horizontal surface of aircraft by tapes or fast-type fixing.
EFFECT: enhancement of efficiency in snow and ice removal from lateral surfaces of the aircraft; ecologic cleanliness of maintenance with use of safety power supply at optimal regulation of power consumption and simplification of structure.
3 cl, 4 dwg
SUBSTANCE: invention can be used for heating domestic and industrial rooms, as well as for manufacturing such electric heaters. Ceiling film electric heater includes resistive radiating element having in plan view a meander shape and arranged between two layers of electric insulating films. Resistive radiating element is equipped with outputs to be connected to electric mains. Parallel strips of resistive radiating element are connected in series by means of their L-shaped bending towards the next strip transversely on one and the other side. Edges of upper and lower electric insulating layers are connected be means of tape with self-adhesive base. According to invention, room heating system includes heat insulator representing a foam heat-insulating material with reflecting layer. Outputs of resistive radiating element of ceiling film electric heater are connected via control and protection devices to power network. Device for manufacturing the bed of ceiling film electric heater includes uncoiler for strips of resistive radiating element, uncoilers of upper and lower layers of electric insulating films, device for supply of tape with self-adhesive base, laminating machine with thermal shafts and winding shafts of the ready bed, which are installed in one process line.
EFFECT: low production cost and possible use in large-scale production.
16 cl, 9 dwg