3056results about "Electric heating system" patented technology

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.

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.

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.

Disclosed herein is a back-grooved laminate wood flooring in which a wood veneer of high pressure resin impregnation laminate (WPL) is laminated on a base selected from a vinyl chloride (PVC) resin layer, on oriented strand board (OSB), a high-density fiberboard (HDF) and a waterproof plywood. More specifically, the back-grooved laminate wood flooring comprises a WPL (20), an adhesive layer (40) and a base (10) (a polyvinyl chloride resin layer, OSB, HDF or waterproof plywood) wherein the WPL (20) includes a base-reinforcing layer (24), a natural veneer layer (23), a resin-impregnated overlay layer (22) and a surface UV coating layer (21) layered in this order from the bottom. The back-grooved laminate wood flooring further exhibits excellent soundproofing performance.

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.

In a method for installing tiles on a substrate, tiles, having a first surface and a second, machinable surface, are arranged in installed locations on the substrate with the second, machinable surface facing away from the substrate. The machinable surfaces are then machined to reduce tile-to-tile irregularities and adjust for the variations in the subfloor, and the tiles are turned over so that the first surfaces face away from the substrate. A decorative flooring unit is also provided having a tile with a shim layer on its underside, an edge member surrounding the tile and a substrate extending beneath the edge member and the tile. The tile is installed within the edge member with the shim layer facing away from the substrate. The tile may be reversed after sanding the edge member and shim layer.

A foot mounted work accessory used in the installation of a flooring underlayer and associated electrical heating wire includes a substantially rigid base member including an upper surface and a lower surface with sidewalls extending between the upper surface and the lower surface. The base member further includes a first end having a forward edge extending between the upper and lower surfaces and a second end having a rear edge extending between the upper and lower surfaces, first and second lateral edges extend between the upper surface and the lower surface along the left and right sides of the base member. An alignment channel is formed at a forward tip of the foot mounted work accessory. A foot strap is secured to the upper surface of the base member.

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).

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.

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.

A radiant heating system comprises a thermally sprayed resistive heating layer bonded to an underlayment building material substrate. The substrate can comprise a sub-flooring material and the heating system can comprise a radiant floor heating system. The resistive heating layer can be thermally sprayed directly onto a sub-floor or similar underlayment material, including cementitious backing material or a sound reduction board. A finished floor surface, such as a tile, wood or laminate surface, can be provided over the substrate and thermally sprayed heater to provide a radiant floor heater. In other embodiments, a radiant heating system includes a thermally sprayed heater bonded to a flooring overlay, such as a laminate board, to a heater insert, such as a flexible polymer film or a mica-based material, or to a concrete substrate. Methods of fabricating radiant heating systems include thermally-spraying a resistive material on a sub-floor or flooring overlay.

The invention discloses a PTC composite material heating film which comprises a first macromolecule solidification sheet, a PTC composite material layer and a second macromolecule solidification sheet, wherein the first macromolecule solidification sheet, the PTC composite material layer and the second macromolecule solidification sheet are stacked in sequence. The PTC composite material layer of the PTC composite material heating film is a mixture composed of the following materials, by weight, 20 to 90 parts of conducting particles, 10 to 80 parts of high-molecular polymer and 1 to 10 parts of annexing agents, namely, the materials of the PTC composite material layer are crystalized or semi-crystalized polymer composites filling with the conducting particles, wherein the composites shows PTC characteristics. Due to the fact that the composites with the PTC characteristics is adopted by the PTC composite material heating film, overheating protection can be carried out through own intelligent temperature control. The invention further discloses a manufacturing method of the PTC composite material heating film and electrothermal film floor heating components adopting the PTC composite material heating film.

The invention provides a control method of an electric heater. The control method comprises the following steps: (S1) when the electric heater is started to operate, the environmental temperature is detected in real time; (S2) the electric heater is controlled to operate for first time with predetermined first power until the present environmental temperature reaches a predetermined temperature; (S3) the environmental temperature increasing speed within the first time is obtained; and a predetermined power table is inquired according to the environmental temperature increasing speed to obtain the operating power of the electric heater; (S4) the electric heater is controlled to operate for second time with the operating power; and (S5) the operating power of the electric heater is adjusted according to a variation value of the present environmental temperature within the second time and the predetermined power table; and the steps (S4) and (S5) are repeated. The control method can enable the electric heater to intelligently heat at a constant temperature, so that the continuous closing or opening of an electric switch is prevented, the energy conservation and the environmental protection are achieved, and the comfortable experience of users to the constant-temperature requirement is increased. The invention further provides the electric heater.

A carbon fiber heating source includes a bundle of carbon fibers combined with glass fibers. The bundle is surrounded with a silicone coating layer and has high tensile strength responsive to bending and tension while emitting heat at high temperature. The carbon fiber heat emitting source includes heat emitting fibers formed by combining carbon fibers with glass fibers. Connection terminals are formed at both ends of the heat emitting fibers so that electricity can be applied thereto. A coating member coats the surfaces of the heat emitting fibers and the connection terminals. The coating member may be a silicone coating layer formed on the heat emitting fibers and the connection terminals. The coating member may be a quartz pipe that is filled with LPG and hydrogen and receives and seals the heat emitting fibers such that only a portion of the connection terminals is exposed from the both ends.

A direct current powered electrical heating unit capable of distributing heat across the heating unit in a substantially uniform fashion. The heating unit includes a first pliable outer layer and a second pliable outer layer. The heating unit further includes a pliable electrical heating element disposed between the first and the second cover layers and configured to convert electrical energy to heat energy and to distribute the heat energy. The pliable electrical heating element includes a heat generating element for converting electrical current to heat energy and a heat spreading element comprising graphite thermally coupled to the heat generating element. The heating unit further includes a thermal insulation layer positioned above the pliable electrical heating element and between the first and the second cover layers. A receiving power connector is electrically connected to the heat generating element. The receiving power connector configured to connect to a direct current power source.

The invention relates to an indoor air purification heating device, in particular to a multifunctional air purifier which comprises a heat insulation box arranged in a casing, a negative ion generator connected with a high pressure pack, a cross-flow fan, a far infrared heating tube, a C-shaped heat exchange body, a filter material protection net, a filter I, a filter II, a primary filter screen and a main circuit board. The far infrared heating tube is adopted for heating, the C-shaped heat exchange body is used for conducting heat absorbing and radiating, the high efficiency particulate air (HEPA) filter is used for filtering air and adsorbing dust, the activated carbon filter is used for clearing dust peculiar smell and formaldehyde, and the negative ion generator is used for sterilizing. Indoor heating can be conducted while air purification is conducted, or air purification can be conducted while indoor heating is conducted. Indoor air purification can also be achieved independently. The multifunctional air purifier has the advantages of being convenient to use, simple in production and manufacture process and favorable for batch production.

A thick film, large area resistance heater including a substrate having an electrically non-conductive surface on which is deposited a film electrical resistor such as a thermally sprayed, photo resist etched foil or sol-gel graphite based material. A combination of an electrically conductive film coated backer board substrate composed of portland cement, sand, cellulose fibers and other selected additives. A mica substrate heater can be cemented to a cement backer board or a vinyl with adhesive backing.

An electric fire assembly with a flame effect arrangement. The arrangement includes a bulb located in a hollow cylindrical member of opaque material with a plurality of flame shape cutouts. Light passes through the cutouts onto the rear surface of a screen to provide a flame effect as the member rotates.

The invention discloses a multi-functional double-layer glass ventilating window which comprises double-layer glass, an energy recovery unit and an automatic control unit. According to real-timely monitored indoor and outdoor air environment parameters, switching of functions of the window is controlled, outdoor fresh air or indoor return air is subjected to humidity adjustment, temperature adjustment and purification, meanwhile the functions of sun shading and noise reduction are further achieved, and the requirement for the indoor air quality is met. According to the multi-functional double-layer glass ventilating window, the actual problems that auxiliary functions of an original window are imperfect, and manual control is needed are solved.

The invention discloses a nanocrystalline wood floor geothermal composite structure, comprising an extruded sheet thermal-protective coating and a heat conduction floor layer. The technical key points are as follows: the upper part of the extruded sheet thermal-protective coating is evenly provided with closed grooves, the upper part of the extruded sheet thermal-protective coating and the closed groove positions are respectively distributed with a heat conduction layer evenly, a heating cable is paved in the closed groove with the heat conduction layer, and the upper part of the heat conduction layer is directly paved with the heat conduction floor layer with a wear-resistant surface course. The composite structure is not manufactured by lyophobic materials, thus having waterproof function. When in use, a user can set the temperature by proper motion as required, and especially at night, night off-peak electricity is introduced for warming, thus alleviating the peak electricity conflicts of a grid transmission system, replacing a coal-fired boiler and satisfying large area heating. The invention also has the characteristics of simple and reasonable structure, environment protection without pollution, small occupied area, low heating cost, long service life, wide application range, capability of being widely used indoor and outdoor and the like.

The invention discloses a foamed ceramic composite floor-heating brick and a preparation method thereof, and belongs to the technical field of building decoration materials. The foamed ceramic composite floor-heating brick comprises a foamed ceramic plate and a building decoration layer located on the foamed ceramic plate, wherein a binding layer is arranged between the foamed ceramic plate and the building decoration layer; and a wire slot is formed in the upper surface of the foamed ceramic plate, and carbon fibre heating wires are arranged in the wire slot. The composite floor-heating brick realizes the functions of heating, heat insulation, heat isolation and flame retardance, reduces the weight thereof, and simplifies the traditional paving process.

A wall mounted electric heater includes a substrate, a heat insulated sheet, a heating element, at least two electrodes and an enclosure. The heat insulated sheet is disposed on a surface of the substrate. The heating element is disposed on the heat insulated sheet. The heating element includes a carbon nanotube layer structure. The at least two electrodes are electrically connected with the heating element. The enclosure fixes the substrate, the heat insulated sheet and the heating element therein.

The invention discloses a modular floor heating system. The modular floor heating system comprises at least one unit floor heating module, a centralized control box connected with the unit floor heating modules respectively as well as a user terminal in communication connection with the centralized control box, wherein a pressure sensor for sensing whether a human body moves or not is arranged in each unit floor heating module; the centralized control box controls turning on and off of the corresponding unit floor heating module independently according to the corresponding sensing result. According to the modular floor heating system, multiple unit floor heating modules can be assembled into a whole, the system is convenient to mount, flexible and easy to use, each unit floor heating module can sense whether a human moves on the unit floor heating module or not, so that turning on and off of the unit floor heating module can be controlled independently, and energy is saved.

A multilayer insulating panel is for the installation of an electric heating system having electric heating wires in a subfloor or in a wall of a building. The panel includes a main insulating layer including a first surface and a second opposite surface. A sheet made of polymeric material is operatively associated with one of the first or second surfaces. The sheet has a first face and a second opposite face and includes reliefs equally spaced apart on the first face to fix the electric heating wires on the first face in a reversible manner. A connection layer is fixed to the second face of the sheet. The connection layer is interposed between the second face of the sheet and one of the first surface or the second surface of the main layer following the association of the main insulating layer with the polymeric sheet.