2531results about "Heating element materials" patented technology

A manufacturing process for a food warming pad includes the following steps: a pad body with a groove formed on a second surface is manufactured by an integrated molding process; after the heating wire is embedded in the groove, an encapsulation glue is coated, and a drying operation is performed; after the encapsulation glue is completely cured, a controller is installed; and then, a test is performed to obtain a qualified food warming pad.

The invention relates to the technical field of graphene, and discloses a deep skin anti-wrinkle beauty instrument applying a graphene electrothermal effect and a control method, the method comprises the following steps: pre-activating a graphene electrothermal film to obtain a negative temperature coefficient resistance characteristic parameter; performing contact state detection and multi-parameter analysis on the target area to obtain personalized temperature control parameters; pWM sectional power control is carried out on the graphene electrothermal film based on the personalized temperature control parameters and the negative temperature coefficient resistance characteristic parameters, and a staged heating temperature output strategy is obtained; real-time feedback adjustment is carried out based on a staged heating temperature output strategy, and a stable temperature control signal is obtained; the graphene electrothermal film is subjected to gradual cooling power adjustment according to the stable temperature control signal, meanwhile, the safe stop state of the beauty instrument is confirmed, the unique characteristic that the resistance value is reduced when the temperature of the graphene material rises is utilized, and compared with a traditional linear resistance material, the temperature control precision and the response speed are higher.

The invention relates to the technical field of optical lenses, and discloses a heating, deicing and demisting structure of an optical lens, which comprises a lens frame, a deicing and demisting mechanism is arranged in the lens frame, a lens bracket is fixedly mounted on the inner side of a limiting bracket, and a temperature sensor and a humidity sensor are fixedly mounted on the left side of the lens bracket. A transparent graphene heating film is mounted on the outer surface of the lens, an electrode is fixedly mounted in the transparent graphene heating film, and an annular heating element is clamped to the outer surface of the lens. According to the heating, deicing and demisting structure of the optical lens and the use method, when humidity data reaches or exceeds a set threshold value and the temperature is higher than 0 DEG C, the control module sends an electrifying instruction to the transparent graphene heating film, heat is uniformly transmitted to the surface of the lens, and mist is dispersed without leaving scratches; the non-contact heating demisting method not only effectively protects the optical performance of the lens, but also improves the reliability and service life of equipment.

The present invention provides a dry powder formulation of 5-MeO-DMT or a pharmaceutically acceptable salt thereof, and one or more pharmaceutically acceptable carriers or excipients. The formulations described herein may be used to treat a disease or condition, such as depression or alcohol use disorder in a subject in need thereof.

The invention discloses a graphene heating system for an automobile rearview mirror and a heating method of the graphene heating system, and belongs to the technical field of automobile accessories. The system comprises an acquisition unit, a control unit, a graphene heating film and a positioning film, the graphene heating film is fixed on a mirror surface of a rearview mirror lens, the positioning film is attached to the graphene heating film, and the control unit is arranged on the back surface of the lens and connected with other components. A plurality of independently controlled heating areas are arranged on the graphene heating film, corresponding positioning areas are arranged on the positioning film, and the positioning areas and the heating areas with the same serial number are overlapped in position. The system judges whether the rearview mirror meets the fogging condition or not by collecting information such as environment temperature and humidity, weather and position, can accurately position the fogging area, and pertinently controls the corresponding heating area to conduct heating and defogging. According to the invention, accurate identification and directional heating of the fogging area of the rearview mirror are realized, the demisting efficiency is improved, and the energy consumption is reduced.

Composite materials with noble metal coated silver nanowires loaded into polymer are described. The composite materials may have resistivities of no more than about 100 Ohm-cm, or from about 100 Ohm-cm to about 1×1011 Ohm-cm depending on the amount of noble metal coated silver nanowires loaded into the polymer. The noble metal coated silver nanowires may be platinum coated silver nanowires. Metal particulates such as silver flakes or silver particles may be added to the composite materials in order to obtain desired properties. Composite precursor compositions and methods for preparing the composite materials are described.

The utility model discloses a graphene carbon heat-conducting fin and reversible desiccant membrane combined membrane component for demisting an automobile lamp, a graphene carbon heat-conducting fin layer comprises a heat absorption area and a heat conduction area, the heat absorption area is arranged towards a heating element in the automobile lamp and is used for absorbing infrared heat, the heat conduction area is formed by extending from the heat absorption area to a cold area which is easy to fog, and the reversible desiccant membrane is arranged in the heat conduction area. The heat is exported for demisting; the reversible drying agent diaphragm layer is arranged in the heat conduction area and comprises a supporting framework layer, a functional layer and active filler; the support framework layer is an expanded polytetrafluoroethylene membrane with a microporous structure, the fog absorbent slurry forms a functional layer on the surface of the expanded polytetrafluoroethylene membrane, and the fog absorbent slurry is embedded into the microporous structure to form active filling. According to the utility model, heat generated by electrical elements in the automobile lamp is utilized to realize moisture absorption and desorption circulation of the reversible drying agent diaphragm, so that the fogging problem of a novel flat and long and narrow belt type automobile lamp is effectively solved, the structure is simple, and the cost is low.

The invention relates to the technical field of engine blades, and discloses an electric heating assembly for ice prevention and removal of an engine blade and a preparation method and application of the electric heating assembly. The electric heating assembly and the engine blade are conformal, the long edge of the short axis direction of the engine blade is parallel to the first direction, and the second direction is perpendicular to the first direction; the electric heating assembly comprises a plurality of electric heating pieces which are sequentially arranged in the second direction and connected through a parallel circuit, each electric heating piece is provided with two second edges oppositely arranged in the second direction, and the second edges are parallel to the first direction; the electric heating piece comprises a conductive fabric, and the conductive fabric comprises a fiber fabric and a graphene electric heating layer conformally wrapping the fiber fabric. The electric heating assembly has good heat distribution uniformity, and the anti-icing and de-icing effects of the engine blade can be improved.

An article, a method of making the same, and a method of using the same are provided. Such an article includes at least one coated layer, which includes a substrate and a coating disposed on the substrate. The coating includes a layered nanomaterial and a solute embedded and distributed in the layered nanomaterial. The solute comprises at least one salt soluble in a solvent. The substrate comprises a polymer, for example, a high-performance polymer such as polyether ether ketone and poly(para-phenylene terephthalamide). The article is used for thermal management applications, for example, as protective garment.

The invention discloses a high-power ceramic heater based on a new energy automobile and a manufacturing method of the high-power ceramic heater, and relates to the technical field of ceramic heater manufacturing. The invention comprises: a hollow tubular ceramic matrix; the temperature sensing layer, the first ceramic substrate, the heating layer, the second ceramic substrate, the first metal layer and the first electroplating alloy layer are sequentially attached to the outer side of the ceramic base body; the second metal layer and the second electroplating alloy layer are sequentially attached to the inner side of the ceramic base body. Through surface treatment of the novel heating slurry, the novel ceramic material, the metal layer and the electroplated alloy layer and innovative design of the integrated temperature sensing layer, the high-power ceramic heater is excellent in performance, service life, safety, temperature control and temperature impact resistance, and can cope with a harsh working environment; a more stable and efficient heating solution is provided; due to the innovative design, the ceramic heater is more reliable and durable under high-power, high-pressure and complex working conditions.

Provided is a heater element with which it is possible to widen the area in the direction in which a flow path, which can be effectively heated, extends. The heater element has a honeycomb structure and satisfies either condition (i) or (ii) below: (i) a first electrode is provided on one end face, and a second electrode has an electrode portion A provided on another end face of the honeycomb structure and an electrode portion B that is connected to the electrode portion A and provided on the surface of a partition over a predetermined length in the direction in which a flow path extends from the other end face; and (ii) a first electrode has an electrode portion A provided on one end face and an electrode portion B that is connected to the electrode portion A and provided on the surface of a partition over a predetermined length in the direction in which a flow path extends from the one end face, and a second electrode has an electrode portion A provided on another end face and an electrode portion B that is connected to the electrode portion A and provided on the surface of the partition over a predetermined length in the direction in which the flow path extends from the other end face.

The utility model relates to a wafer heater and a chemical vapor deposition system, which are used for solving the technical problem of non-uniform heat distribution and temperature control on the surface of the wafer heater. The wafer heater comprises a heating part which is used for supporting a wafer and heating the wafer and comprises an inner heating area which is arranged at a position corresponding to a central area of the wafer and an annular outer heating area which surrounds the outer side of the inner heating area and is concentrically arranged with the inner heating area; the interface part is arranged at the bottom of the heating part, and the control module is used for controlling the temperature of the inner heating area and the temperature of the annular outer heating area.

A lamp or lens assembly for a motor vehicle that includes electrically conductive traces for defogging or deicing the lens. Aspects include a light transmissive lens coupled to a lamp housing. The light transmissive lens may define a curved cross-section with a curvature extending across the length and / or the width of the lens. The lens may include one or more electrically conductive traces positioned on a surface of the lens, the electrically conductive traces optionally extending across and curving with the curvature of the light transmissive lens. One or more coatings may optionally cover the conductive traces and a portion of the lens surface leaving portions uncovered. The electrically conductive traces may extend outwardly away from the surface of the lens with height that is greater than their width.

Flash Joule heating (FJH) for production of one-dimensional (1D) carbon and / or boron nitride nanomaterials, and 1D materials integrated with 0D, 1D, 2D, and 3D nanomaterials, composites, nanostructures, networks, and mixtures thereof. Such materials produced by FJH include 1D carbon and hybrid nanomaterials, boron nitride nanotubes (BNNTs), turbostratic boron-carbon-nitrogen (BCN), doped (substituted) graphene, and heteroatom doped (substituted) re-flashed graphene.

An accelerometer includes a housing, a proof mass assembly encased in the housing, and one or more heating elements configured to heat the proof mass assembly in response to an electrical current. The one or more heating elements include a positive temperature coefficient of resistance (PTC) material. The PTC material exhibits a relatively high increase in resistance above a threshold temperature. For example, a ratio of the resistance of the PTC material above the threshold temperature to the resistance of the PTC material at room temperature (PTC ratio) is greater than five.

According to the mass concrete temperature field self-adaptive thermoelectric coordinated regulation and control system and method, the temperature difference between the inside and the outside of mass concrete is reduced through active directional heat transfer and self-adaptive thermal resistance regulation. The flexible thermoelectric thin film device prepared by the invention has high flexibility, high thermoelectric efficiency and strong environmental adaptability, and can meet the temperature control requirement of mass concrete, and the manufacturing process is compatible with the existing microelectronic processing technology, so that the flexible thermoelectric thin film device has large-scale production potential; the flexible thermoelectric device is attached to the surface of concrete, directional transmission of heat between the concrete and the thermoelectric module from a high-temperature area to a low-temperature area is achieved by switching the current direction through the Peltier effect, temperature balance is achieved completely through the active thermoelectric effect and passive heat conduction optimization, the temperature lag and durability defects of a phase change material are avoided, and the service life of the concrete is prolonged. And the heat transfer efficiency is improved through the heat conductivity coefficient gradient and the thermally induced variation characteristic of the gradient heat conduction interface material layer.

The invention belongs to the technical field of wind turbine blade anti-icing and deicing, and particularly relates to a carbon nano tube-graphene composite electric heating anti-icing and deicing system which comprises a composite electric heating layer laid on the surface of a wind turbine blade base body and used for generating heat, and the composite electric heating layer sequentially comprises a base layer, a composite conductive layer and an insulation protection layer from inside to outside. The electrode assembly is arranged on the composite electric heating layer and used for supplying power to the composite conductive layer; the ice layer monitoring module is configured to monitor the thickness of the ice layer on the surface of the blade and the environment temperature; and the power supply control module is electrically connected with the electrode assembly and the ice layer monitoring module and is configured to control power supply parameters of the electrode assembly according to the ice layer thickness and the environment temperature. By optimizing the structure of the composite conductive layer and improving the electrode arrangement and intelligent control mode, the thermal response speed is increased, the heating uniformity is optimized, the energy consumption is reduced, the service life is prolonged, and the device adapts to the complex working condition of the wind turbine blade.

The invention relates to a method for curing an electrically assisted carbon fiber reinforced thermosetting composite material, which comprises the following steps: uniformly spraying a carbon nanotube dispersion liquid on the surface of a carbon fiber prepreg so as to form a conductive coating on the surface of the carbon fiber prepreg; laying the carbon fiber prepreg with the conductive coating on the surface according to the designed laying angle and number to prepare a sample; pressure is applied to the top surface and the bottom surface of the sample in a vacuumized low-pressure environment, then the top surface and the bottom surface of the sample are heated and softened, direct current is applied to the top surface and the bottom surface of the sample while the sample is softened, and carbon nanotubes of a conductive coating in the sample are induced to conduct electricity to generate Joule heat; and curing to obtain the cured electrically-assisted carbon fiber reinforced thermosetting composite material. The invention further provides a device based on the method. According to the method, energy consumption is reduced, and meanwhile the composite material has good curing uniformity and mechanical property.

The invention relates to the technical field of fluid machinery, in particular to a heater and a compressor assembly, a ceramic heating plate is arranged on a heat conducting plate through nickel plating, reflow soldering and the like, heat is transferred to a containing space of the heater through the heat conducting plate, and the situation that the ceramic heating plate directly makes contact with fluid, boiling is generated, and consequently the heat exchange efficiency is reduced is avoided. The combination mode of nickel plating bottom welding can enable the ceramic heating plate and the heat conduction plate to be combined more tightly, heat loss is small during heat conduction, and heat exchange efficiency is not affected.

The utility model relates to the technical field of radiotherapy, in particular to a heating bed board for radiotherapy, which comprises a first fiber layer, a non-metal heating structure layer, a foam board and a second fiber layer which are adhered and laid from top to bottom, and the non-metal heating structure layer is connected with a first metal electrode and a second metal electrode. The first metal electrode and the second metal electrode are arranged on the same side of the foam plate and are arranged in a non-treatment area. Current is led into the non-metal heating structure layer through the first metal electrode and the second metal electrode, so that the non-metal heating structure layer emits heat, the heating bed plate for radiotherapy is heated, the heating temperature can be controlled by controlling the size of the led-in current, and therefore effective control over the temperature is achieved, the somatosensory comfort degree of a patient during treatment is improved, and the radiotherapy effect is improved. And adverse effects on radiotherapy precision caused by movement of the body due to discomfort of the patient are avoided.

The invention discloses a carbon nanotube and silver nanowire co-loaded cotton fabric, a preparation method and application, a pretreated cotton fabric is placed in a silane coupling agent solution, and after soaking treatment, washing and drying are performed to obtain a modified cotton fabric; the preparation method comprises the following steps: acidizing carbon nanotubes, and dispersing the acidized carbon nanotubes in deionized water to obtain acidized carbon nanotube dispersion liquid; the preparation method comprises the following steps: mixing a reducing agent, ferric sulfate, silver nitrate, polyvinylpyrrolidone and water, heating to react, centrifuging, washing, and dispersing a product into deionized water to obtain AgNWs dispersion liquid; the modified cotton fabric is soaked in a CNTs / AgNWs dispersion liquid prepared from the acidified carbon nanotube dispersion liquid and the AgNWs dispersion liquid, and the modified cotton fabric is taken out and dried. The cotton fabric is modified through oxysilane, active groups are introduced to the surface of the fabric, and the binding force of the cotton fabric and a conductive material is enhanced. The surface of the fiber is coated with the carbon nanotubes, the silver nanowires are in lap joint to fill gaps, the carbon nanotubes and the silver nanowires form a continuous and complete conductive network on the surface of the cotton fabric, and the conductivity is improved.

The invention relates to a composite heating element, a preparation method of the composite heating element and application of the composite heating element in thermoplastic composite material resistance welding, and belongs to the technical field of thermoplastic composite material welding. In order to solve the problem that the strength of a welding joint is reduced due to the fact that the heating temperature distribution of a welding area of a traditional heating element is not uniform and heterogeneous inclusions exist, the invention provides a composite heating element which comprises two layers of GO / PA66 composite reinforced films and a graphite heating film arranged between the two layers of GO / PA66 composite reinforced films. Uniform heat distribution of a heating area is realized by optimizing the structural design of the composite heating element; and the longitudinal bonding force of welding is remarkably improved through introduction of the graphene oxide. The composite heating element has the thermal expansion coefficient similar to that of a thermoplastic composite material matrix, the stress distribution of a welding joint is remarkably improved, the higher-quality welding effect is provided, and the composite heating element has wide industrial application prospects in the field of thermoplastic composite material welding.

A non-metallic composite heating element assembly can be formed by winding a carbon veil onto a resin-rich structural layer before the resin-rich structural layer completely cures. The resin can wet through the carbon veil during formation, thereby bonding the carbon veil to the structural layer without the need for a separate and discrete adhesive layer. Other layers can also be formed, including a first insulating layer between the carbon veil and the first structural layer, a second insulating layer above the carbon veil, and a second structural layer formed above the second insulating layer. The carbon veil can include two busbars for supplying power to the carbon veil.

The invention belongs to the technical field of electric heating deicing, and particularly relates to a surface heating electric heating film and a preparation method thereof. Comprising an outer surface insulating layer, a heating layer, a power supply electrode and an inner surface insulating layer, the heating layer is prepared from a carbon-based conductor composite polymeric material in a printing or coating mode, and the carbon-based conductor composite polymeric material is formed by mixing polyimide resin and carbon fibers (or one or more of graphene, carbon nanotubes and the like). The surface heating electric heating film provided by the invention has the characteristics of simple and reliable structure, light weight and surface heating performance, can be applied to ice prevention and removal operation of parts such as aircraft wings, empennages, propellers and the like, and has relatively high practical application value.

The invention discloses a graphite heating tube and cooking equipment, and the graphite heating tube comprises a hollow tube body, the tube body is provided with at least one bending part, the bending part is in a circular arc shape, and a reference line is defined to pass through the circle center of the bending part and is perpendicular to the radius direction of the bending part; the heating piece is formed into a sheet-shaped graphene material piece, the heating piece is arranged in the pipe body in a penetrating mode, in the thickness direction of the heating piece, the heating piece is provided with a neutral face located in the center, the neutral face extends in the length direction of the pipe body, and at least the part, right opposite to the bent part, of the neutral face is parallel to the reference line. According to the invention, the part, which is at least opposite to the bending part, of the neutral surface is parallel to the reference line, so that the heating piece cannot be twisted by external force, the heating piece can smoothly penetrate into the pipe body, the yield is improved, the production efficiency is greatly improved, and the cost is saved.

The invention relates to a coating formula, a heating element and a preparation method of the heating element, the coating formula comprises the following components in percentage by mass: 60 to 70 weight percent of Cu, 0.005 to 0.05 weight percent of Sn, 0.001 to 0.01 weight percent of P, 0.005 to 0.05 weight percent of Fe, 0.001 to 0.02 weight percent of Si, 0.001 to 0.05 weight percent of Ag and 30 to 40 weight percent of Zn, and the sum of the components is 100 weight percent. The electric heating device has the advantages of quick response, high energy utilization rate, uniform temperature distribution, long service life and the like, and is particularly suitable for manufacturing efficient and energy-saving electric heating appliances.

The invention discloses an air suspension dryer, and aims to solve the problems that the sealing effect is poor in the heating process of a traditional dryer, and the sealing performance and the heating effect of the dryer are affected. The air suspension dryer comprises a dryer body, a heating assembly and a heat insulation cover, and the dryer body and the heating assembly are located in the heat insulation cover; the heating assembly comprises a first insulating layer, a heating resistance layer and a second insulating layer, the first insulating layer, the heating resistance layer and the second insulating layer are sequentially arranged on the outer side of the dryer body, the heating resistance layer is connected with an external circuit, and a gap is formed between the second insulating layer and the heat insulation cover. The heating assembly is directly sintered or attached to the outer side of the dryer body, and the heating function and the drying function are highly integrated. The external heating assembly can prevent the initial structure of the dryer body from being changed, and the sealing performance of the dryer body is ensured. The general arrangement design is facilitated, and meanwhile, the production and assembly cost can be reduced.

A heater includes a plurality of heat-generating cells partitioned by a boundary line arranged on a base body, and includes one resistive heating wire formed in each heat-generating cell and having a zig-zag shape as a whole, the resistive heating wire formed by connecting a parallel wiring and a turn-back wiring formed so as to turn back the parallel wiring in a vicinity of the boundary line between adjacent heat-generating cells. In the adjacent heat-generating cells, the resistive heating wire of a heat-generating cell has an extension portion extending the parallel wiring past the boundary line, and the resistive heating wire of the other heat-generating cell is shortened or deformed so that a wiring of a portion facing the extension portion maintains an electrical insulation with the extension portion. The resistive heating wires of the adjacent heat-generating cells include extension portions alternately in a boundary line direction.

Disclosed in the present invention are a method for preparing body heating graphite, a product, and a use thereof in a heating appliance. The method comprises: weighing a powder and a binder, wherein the powder is asphalt coke, and the binder is modified asphalt; preheating the asphalt coke; heating the modified asphalt to a molten state; pouring the modified asphalt into the preheated asphalt coke for kneading to obtain a paste; hot rolling the paste, and cooling, then crushing and screening the paste to obtain a mixed powder; subjecting the mixed powder to isostatic pressing forming treatment to obtain a green body sample; and subjecting the formed green body sample to roasting treatment twice to obtain a body heating graphite sample. According to the method for preparing body heating graphite, the product, and the use thereof in a heating appliance provided by the present invention, the whole graphite has heating resistance, generates heat uniformly upon being energized, results in apparently more sufficient hot air, a higher temperature uniformity, and a better heating effect, meets vaping requirements for a baked cigarette, and produces smoke flavor consistency from puff to puff. It is not necessary to combine a porous honeycomb diffuser with other heating elements, and the assembly is more convenient.