5838results about "Electric heating system" patented technology

An apparatus for flame simulation in an electrical fireplace which improves the realism of leaping and flickering flames, comprising a fixed light source, simulated charcoal, and a flame display screen which is arranged above the fixed light source. The simulated charcoal is located in front of the flame display screen. A twisted-style light reflector is located behind the flame display screen and is driven by a motor mounted inside the wall of the electrical fireplace. By rotating the twisted-style light reflector, light emitted from the fixed light source is reflected onto the flame display screen so the simulated dynamic leaping and flickering flames can be seen. The fixed light source also illuminates the simulated charcoal to produce an effect of burning charcoals. A heater produces warm air that is expelled from the fireplace.

This invention discloses a carbon crystal material and a method for preparing plates with the crystals, in which, the carbon crystal material is prepared by taking carbon fibers as the raw material to be grinded and modified, the plate is a panel heater prepared by mixing carbon crystal material with paper pulp and adding viscosity aid to be heated and pressed and is harmonic with concrete, which can be used as a heat collecting product.

PCT No. PCT / SE97 / 01172 Sec. 371 Date Jan. 6, 1999 Sec. 102(e) Date Jan. 6, 1999 PCT Filed Jun. 27, 1997 PCT Pub. No. WO98 / 01059 PCT Pub. Date Jan. 15, 1998The invention relates to a method for heating a seat comprising a heating element (2) connected to a control unit (1), which is arranged to feed a current (I) through the heating element (2) comprising the detection of the current temperature (T) in connection to the heating element (2) and the control of the temperature (T) by feeding said current (I) through the heating element (2) if said current temperature (T) falls below a predetermined desired temperature (TB). The invention is characterized in that it comprises determining an additional value ( INCREMENT TB) of said desired temperature (TB) and adding said additional value ( INCREMENT TB) to said predetermined desired temperature (TB) in connection with said control by means of the invention. An improved temperature control for a heatable seat is provided, in particular intended for motor vehicles.

An aircraft floor heating panel is constructed for mechanical strength and to meet special heating requirements next to a door in an aircraft. The panel has a lightweight core. Each surface of the core is first covered with at least one carbon-fiber reinforced composite layer for protection against deterioration. Each carbon fiber layer in turn is covered by a glass fiber reinforced composite layer for mechanical strength. A foil heater is arranged inside the composite panel coextensive with at least a portion of the panel area. A heat distributing metal plate covers the panel as an upper step-on surface. A heat insulating layer is bonded to the panel opposite the heat distributing metal plate. A triple heat control is provided for an increased safety against fire hazards.

A radiant floor heating system and method of installation is provided, the system of the present invention being disposed within a solidified cement or under board. A panel member having a laminated reflective material which serves as a thermal break is placed upon the hardened cement or under board. The panel member may be comprised of any substance to which the reflective material may be secured such as a honeycombed plastic panel to which the reflective material layer is laminated. A heating element is disposed on the reflective material. Thereafter, both the heating element and the reflective layer are coated with a layer of thin set or cement. The heating element may include a heated wire element which is unwound off a roll, or the heating element may be meshed within a web of material which is cut to match the dimensions of the floor and then disposed on top of the reflective layer. After the thin set or cement dries with the heating element embedded within, marble or other types of tiles may be laid as flooring.

Disclosed is a warm window system that utilizes individual buss bars that are placed within the space between an inside window pane and an outside window pane and creates sufficient physical force to create an electrical contact on the tin oxide layer on the inside surface of the inside pane of glass. An insulating nonconductive layer can also be used in conjunction with the buss bars. That include metal strips, braided wires, spring loaded indentations, etc. The buss bars have a modulus of elasticity to ensure sufficient electrical contact with the tin oxide layer. The buss bars can be used with either hard coat or soft coat tin oxide coatings on tempered glass or annealed glass. Electrical connections and wires are hidden from the viewing area of the warm window system to enhance the aesthetic value of the warm window system. Retrofit systems allow use of the warm window system in conjunction with an existing installed window system.

The invention relates to a conductive heating material. The material comprises a substrate and a conductive heating layer evenly adhered to the substrate, wherein the conductive heating layer is made from a conductive heating coating material; the conductive heating coating material comprises a conductive heating base material and a bonding agent; the conductive heating base material is selected from natural graphite, artificial graphite and conductive carbon black; the bonding agent is selected from acrylic resin, epoxy resin, polyurethane resin, glutin, carboxymethyl cellulose, polyvinyl alcohol, and the like; and the substrate can adopt paper in a plurality of practical implementation modes. The conductive heating material can be used to make the conductive heating floor; the surface temperature of the floor can reach 15 to 70 DEG C within 5 minutes after the floor is energized with 220V voltage; moreover, the floor can maintain stable temperature for a long time. Therefore, the conductive heating floor can be used to replace the prior ground heating system and has low cost, reliable operation, energy saving, environmental protection and convenient maintenance and replacement.

An outdoor-use heating mat system includes at least one heating mat. At least one heating mat of the system includes a first structural layer, a heating element, a plurality of intermediate strips, a second structural layer, and at least one of a cord and a plug. The first and second structural layers each are both durable and electrically insulating. The first such layer has a plurality of first layer edges associated therewith. The heating element positioned above the first structural layer. The plurality of intermediate strips are mounted upon the first structural layer. Each intermediate strip is positioned proximate at least one of one the first layer edge and the heating element. The second structural layer is mounted to the plurality of intermediate strips opposite the first structural layer.

A flame retardant panel apparatus, and method, utilize a flame retardant panel, having an exterior and an interior face thereof, with the panel including a panel structure having a primary core encapsulated within a panel frame of reinforced phenolic material, and a layer of flame retardant material attached to the panel structure and extending outwardly therefrom to at least partially define an exterior face of the flame retardant panel. The flame retardant panel is suitable for use in mass transit conveyances, such as subway cars, high speed cars, rail cars, buses, rapid response vehicles, marine vessels, and elevators.

A CHP optimal dispatching model is a mixed integer programming model and is used for a district heating system (DHS) comprising a heat source, a heating network and a heat load, and the heating network comprises a heat transmission network and a heat distribution network. A plurality of heating areas is divided, and one day is divided into a plurality of time periods; the heat transmission loss of the heat distribution network is omitted, and a heat transmission network model taking transmission time delay of the heating network into consideration is established according to the heat transmission network; a terminal heat consumer model capable of reflecting indoor temperature is established; and a combined optimal dispatching model comprising conventional generators, wind power units, CHP units, electric boilers and heat storage tanks is established.

A portable livestock incubating device is provided formed of a rectangular container having and incubating volume forming an incubating chamber defined by the zone within the incubating volume. Each each end wall further includes an access door hingedly attached to an upper portion above a clean out door for providing ingress and egress of livestock. Each access door has an exhaust vent located at an upper portion whereby heated air, generated via an electric heater within said the incubating chamber exhausts therethrough. A base with wheels mounted thereon for facilitating transportation of the portable livestock incubating device.

A floor heating system includes a flooring substrate having a heating or cooling element in heat transfer relationship therewith. A heat spreader is in heat transfer relationship with the flooring substrate. The heat spreader includes a layer of flexible graphite material. A floor covering overlies the layer of flexible graphite material. Temperature variations across an exposed surface of the floor covering are reduced by the presence of the flexible graphite heat spreader, thus providing an improved and more uniform heating to the floor and to the room with which the floor is associated.

A portable pouch for use in heating temperature sensitive materials is disclosed. The pouch includes a heating unit with one or more fasteners attached around its outer edges. The heating unit can be folded to allow the one or more fasteners to secure opposing outer edges of the heating unit together to form a pocket for substantially enclosing the materials to be warmed. The heating unit can be electrically connected to a direct current power source. The heating unit includes first and second cover layers enclosing a heat generating element and a carbon-based heat spreading element. A thermal insulation layer is also positioned between the first and the second cover layers. The heating element is adapted to generate and evenly spread heat over the interior surface of the pocket to evenly heat the materials disposed within the pocket.

Electric heating device comprising an electric radiator (10) for heating the air passing through it, said radiator comprising a casing (12), at least one resistive element mounted in the casing and constituted by at least one zigzag metal strip (22) which is disposed so as to be directly exposed to the air passing through the casing, and a circuit (30) for controlling the electrical supply of the resistive element or elements connected to a power supply. The electric radiator (10) comprises a set of individual heating modules (20) disposed parallel to one another in the casing (12) and so as to be directly exposed to the air passing through the casing, each heating module (20) comprising a pleated or corrugated metal strip (22) and an electronic switch controlled by the control circuit (30) intended to selectively inhibit the electrical supply of the metal strip (22).

An electric fireplace having a fire simulating assembly is provided with the invention. The fire simulating assembly includes a semitransparent light filter screen, a mirror glass wall and a dynamic light source. The dynamic light source includes fixed light source and a photic cover composed with many rotating centrifugal blades. There are many photic apertures in flame shape. The centrifugal blades rotate around the central of the light source. The said centrifugal blades are laid as follow: the rotating centrifugal blades are set at the periphery of the lighting lamps unjoined with each other. There are clearances between the blades. Light is reflected through the centrifugal blades. The curvature center of each centrifugal blade is not the same as the center axis of lamp whereby static bias and dynamic eccentricity are formed between the arc centers of blades and rotating center. The electric fireplace of this invention can achieve a natural effect of vivid, rising and leaping simulated flame.

The invention relates to a molten salt heat storage type electric heating central heating system, and belongs to the technical field of heat storage. The molten salt heat storage type electric heating central heating system comprises a molten salt electric heater, a high-temperature hot salt tank, a low-temperature cold salt tank, a molten salt pump, a molten salt-water heat exchanger and a heat user. During the time period of low-price low off-peak electricity at night, the molten salt in the cold salt tank is pumped out through the molten salt pump to be conveyed to the molten salt electric heater for heating, and enters the hot salt tank after being heated up to high temperature. During the time period of a power utilization peak, the high-temperature molten salt, with accumulated heat, in the hot salt tank is pumped put through the molten salt pump to be conveyed to the molten salt-water heat exchanger and heats water used for municipal heating to produce hot water for supplying heat to residents. On the basis of a coal-fired boiler central heating system which is in general use at present, only a boiler room of the central heating system needs to be transformed into the molten salt heat storage type electric heating system, and neither a municipal heat supply pipe network nor heat supply terminal equipment needs to be transformed. Besides, the molten salt heat storage type electric heating central heating system can cut down a peak to supplement a trough and reduce the usage amount of coal, thereby playing a role in protecting the environment.

A cloth heater and method for using the heater are provided. The heater utilizes a horizontally disposed surface, a heated glass panel, and support members. The horizontally disposed surface may comprise the top edge or surface of the heated glass panel, or a surface on a separate rack that is above and vertically inline with the top edge of the heated glass panel. The heated glass panel also has two opposing major surfaces. The support members physically support the heated glass panel and have electrical leads that communicate electrical power to the heated glass panel, thus heating the heated glass panel. When a cloth is placed across the horizontally disposed surface, the horizontally disposed surface supports the cloth, and the cloth makes contact with the two opposing major surfaces of the heated glass panel, thus heating the cloth at both opposing major surfaces.

The invention relates to a conductive heating material. The conductive heating paper comprises a substrate and a conductive heating layer evenly attached to the substrate. The conductive heating layer is made of a conductive heating coating which comprises a conductive heating material and an adhesive, wherein the conductive heating material is selected from natural graphite, man-made graphite and conductive carbon black, the adhesive is selected from an epoxy resin adhesive, a polyurethane resin adhesive, a glutin adhesive, a carboxymethyl cellulose adhesive, a polyvinyl alcohol adhesive and the like, and the conductive heating material can be used for manufacturing a conductive heating floor. The conductive heating floor can reach a surface temperature of 15-70 DEG C within 5 min of electrification, keep the temperature stable for a long time and replace a traditional floor-heating system and has low cost, reliable operation, energy saving, environmental protection and convenient maintenance and replacement.

The present invention relates to a novel constructional principle for electric heaters, wherein the functions of frame and resilient means are separated from one another. As a frame for an electric heater, a housing is used that consists of two half-shells. Positioning aids for the PTC heating elements are arranged in the housing. The longitudinal sides of the housing are essentially made open to allow for air throughput through the heating register. A resilient device is additionally inserted into the housing, the resilient device compressing the layered structure of radiator elements, PTC heating elements and contact sheets. After the heater has been assembled, the resilient device can be inserted through a lateral opening into the heater.

A system for generating radiant heat in a transit vehicle includes at least one floor panel having at least one heating element disposed therein, and a power switch operably disposed intermediate a power supply source and the heating element for selectively providing and discontinuing a supply of a predetermined power generated by such power supply source to and from such at least one heating element.

The invention discloses a non-nail clamped electric heating floor system which is characterized by comprising electric heating floors, mounting bases, power supply keels, inserting piece clips, copper conductors, connecting pieces and connecting wires. The installation method of the non-nail clamped electric heating floor system comprises the following steps: firstly the power supply keels are laid on the floor along the side of the rear wall of the laid room in the length direction; the mounting bases are laid on the floor in the mode that the length direction of the mounting bases are perpendicular to that of the power supply keels, the mounting bases are parallel to one another, and plate-end transverse clamping parts and middle transverse locating parts of two neighboring mounting bases are correspondingly arranged at front and back positions; the electric heating floors are vertically fixed on the mounting bases; and finally the electric heating floors work in parallel, i.e. all the electric heating floors emit heat for warming purpose while switching on a power supply, and other electric heating floors are not affected even though certain floor is damaged.

To detect accurately an insulation fault in a load circuit, Power supply lines and an electric heater (a load circuit) are connected by a detecting portion to detect a detected voltage (detected value) in accordance with the magnitude of a leakage current Id that flows through a ground between the power supply lines and the electric heater, and an evaluation as to whether or not there is a breakdown of insulation of the electric heater relative to the ground is performed by an evaluating portion based on the detected value obtained when the relay contact points are open.

An inline duct supplemental heating and cooling device provides heated and / or cooled air to a room in a building to supplement the heating provided by the existing furnace or the cooling provided by the existing cooling unit in the building. The device includes an electric heater and fan that are activated and deactivated individually by a controller, which receives room temperature data from a thermostat. The device may include one or more separate safety devices to prevent overheating of heater air or of the device itself. Optionally, a vibration-insulating sleeve may be used to couple the device to an existing ventilation duct of the building.

The present invention relates to a novel constructional principle for electric heaters, wherein the functions of frame and resilient means are separated from one another. As a frame for an electric heater, a housing is used that consists of two half-shells. Positioning aids for the PTC heating elements are arranged in the housing. The longitudinal sides of the housing are essentially made open to allow for air throughput through the heating register. A resilient device is additionally inserted into the housing, the resilient device compressing the layered structure of radiator elements, PTC heating elements and contact sheets. After the heater has been assembled, the resilient device can be inserted through a lateral opening into the heater.