58results about How to "Good thermal radiation performance" patented technology

A semiconductor module includes a circuit substrate composed of a wiring pattern, an electrical insulating layer and a thermal radiation board, and in use is fixed to an external thermal radiation member, in which the electrical insulating layer is composed of a thermal conductive mixture containing 70-95 wt % of an inorganic filler and 5-30 wt % of a thermosetting resin. A warping degree of the circuit substrate with respect to the external thermal radiation member is at most 1/500 of a length of the substrate, and the circuit substrate warps to protrude toward the thermal radiation board as the temperature rises. Accordingly, the thermal radiation property does not deteriorate even when the temperature rises in use. At a time of fixing the circuit substrate to the external thermal radiation member, the thermal resistance is kept to be a sufficiently low level. The thermal resistance is kept in a low level without sacrificing the contact between a module and the external thermal radiation member even at a high temperature during an operation of the device or the like, and the thermal conductive substrate is resistant to fractures or cracks and thus is highly reliable.

A light emitting module (1) comprises a module substrate (2), a light emitting diode string (31), and a sealing member (48). The light emitting diode string (31) includes light emitting diode elements (32) and bonding wires (37) which connect the light emitting diode elements (32). The light emitting diode element (32) has a pair of element electrodes (33, 34) and has a rectangular shape extending in a direction along which the element electrodes (33, 34) are aligned. The sealing member (48) is laminated on the module substrate (2) to seal the light emitting diode string (31). The light emitting diode elements (32) are arranged at intervals in a direction crossing the direction along which the element electrodes (33, 34) are aligned, and the element electrodes (33, 34) with the same polarity are aligned to be adjacent to each other in an arrangement direction of the light emitting diode elements (32) between the light emitting diode elements (32) adjacent to each other. Each bonding wire (37) is obliquely wired with respect to the arrangement direction of the light emitting diode elements (32) to connect the element electrodes (33, 34) with different polarities of the light emitting diode elements (32) adjacent to each other.

A far infrared carbon fiber low temperature conductive heating paper comprises an original pulp board, carbon fibers, nano far infrared negative ion powder and a diffusant. According to the invention, paper pulp is beaten and added with carbon fibers treated with carbonization processing, water phase processing and hydrophilism processing for dipping; after homogenizing and beating again, resistor of a mixed slurry is measured, and mixed slurry with a resistor within 2%-10% is manufactured into paper. The far infrared carbon fiber low temperature conductive heating paper prepared by the invention can heat uniformly, has high thermal conversion efficiency, near zero electromagnetic radiation, extremely small current density, and is safe for usage. In addition, the radiated far infrared light wave can activate water molecules in human body, raise blood oxygen content, enhance cell vitality, improve human body microcirculation and promote metabolism.

The invention provides graphene mica double-layer paper, a preparation method and application of the paper and a mica electric heating plate containing the paper or a mica electric heating device containing the paper. The graphene mica double-layer paper is good in heat resistance, nonflammable and resistant to acid and alkali, has good heat dissipation performance and can be applied to the thermoelectric device, heat generated when the electric heating device runs is quickly and evenly dispersed into the surrounding environment through an infrared radiation mode, the reliability of the thermoelectric device during running is improved, and the service life of the thermoelectric device is prolonged. Meanwhile, graphene and mica are used as raw materials, the paper is obtained through mica smashing, separation, papermaking and graphene spraying, and the graphene mica double-layer paper has the advantages that the raw materials are easily obtained, the preparation method involves steps easy and convenient to implement, and the prepared graphene mica double-layer paper has the good heat dissipation performance.

The invention provides a flexible LED (light-emitting diode) light-emitting structure based on graphene material. The flexible LED (light-emitting diode) light-emitting structure based on the graphenematerial is characterized in that the flexible LED light-emitting structure comprises a copper tape substrate, a graphene film arranged on one side of the copper tape substrate, and a circuit layer disposed on the other side of the copper tape substrate; a plurality of LED light sources are attached to the circuit layer; due to the excellent thermal and thermal radiation properties of the graphene film, thermal conductivity becomes easy; the flexible LED light structure of the whole being light and thin can be used directly and achieve a certain degree of free bending with no metal radiatorsneeded to be attached; thus, directly through the heat sink of the LED light sources, all the heat is directly transferred to the copper tape substrate provided with the graphene film, and the graphene film on one side of the copper tape substrate can quickly dissipate the heat generated by the LED light sources. The flexible LED light-emitting structure has the advantage of having good heat dissipation effect. Further provided is a manufacturing method of the flexible LED light-emitting structure based on the graphene material.

The invention discloses silicon carbide-ruthenium resistance slurry. The silicon carbide-ruthenium resistance slurry comprises a functional phase and an organic carrier, wherein the functional phase comprises ultrafine ruthenium powder, ultrafine silicon carbide powder and lead-free glass powder; the organic carrier comprises resin, a solvent and additives; the resin is ethylcellulose; the solvent is one or mixture of two of butyl carbitol, terpilenol and a DBE solvent; and the additives comprise a liquid defoaming agent, a liquid flatting agent and a lubricating dispersing agent. The invention also discloses a preparation method for the silicon carbide-ruthenium resistance slurry. The silicon carbide-ruthenium resistance slurry is high in dispersity and cosolvency, high in adhesive force with a base material, excellent in temperature resistance, safe to use, and low in preparation cost.

The invention provides a multilayer solid wood heating floor and belongs to the technical field of wood floors. The multilayer solid wood heating floor comprises a substrate plate, a decorative layer, far-infrared carbon fiber heating paper, an insulating layer, an aluminum foil, a heating floor conductive metal sheet and heating floor connecting terminals, wherein the substrate plate, the far-infrared carbon fiber heating paper and the decorative layer are pressed and integrally molded into a floor blank; the lower surface of the floor blank is provided with the insulating layer and the aluminum foil layer; two ends of the far-infrared carbon fiber heating paper in the floor bland are respectively provided with one heating floor connecting terminal; the connecting terminals are connected to a power supply by virtue of heating floor waterproof two-way male/female insulated plug power lines. The multilayer solid wood heating floor is characterized in that the substrate plate is prepared by pressing solid wood veneer; the far-infrared carbon fiber heating paper is arranged in the substrate plate and also can be arranged between the substrate plate and the decorative layer. The multilayer solid wood heating floor has the characteristics of safety, energy conservation, high thermal efficiency, high speed, simplicity in use, low cost and long service life; the solid veneer is adopted, so that the multilayer solid wood heating floor is environment-friendly and pollution-free.

The embodiment of the invention discloses carbon glue thick-film resistor sizing. The carbon glue thick-film resistor sizing comprises, by mass, 3 parts of anti-flaming temperature-resistance high-molecular polymer including boron, 1.5 parts of nanometer carbon system electric conduction packing, 12 parts of electric conduction phase graphite powder, 4 parts of ultra-fine base metal ally powder electric conduction packing, 0.6 part of tributyl citrate, 0.6 part of cellulose nitrate, 32 parts of o-methyl novolac epoxy resin, 5-10 parts of silver and palladium alloy powder, 5 parts of coupling agent, 25 parts of linear phenolic resin, 13 parts of ethylene glycol diglycidyl ether and 7 parts of microcrystal glass powder. Through tests and analyses, it is shown that a resistor prepared through the carbon glue thick-film resistor sizing is good in performance.

The invention provides a shell of terminal equipment and a processing method of the shell. The shell comprises a shell body and a heat conduction layer sprayed on a surface of the shell body, whereinnano carbon particles and heat conduction metal particles are contained in the heat conduction layer, and a surface of the heat conduction layer is provided with an uneven heat dissipation microstructure. The nano carbon particles have excellent heat conduction and heat radiation performance, the heat conduction performance is mainly reflected in heat diffusion transfer, the heat diffusion speed of the nano carbon particles is larger than or equal to 200 mm<2>/S, a heat radiation coefficient is 0.92-0.95, the nano carbon particles have excellent heat conduction performance, moreover, the carbon nanoparticles can form a continuous heat conduction channel on the surface of the shell after being dried, so heat conduction performance can be enhanced, and the heat can be conducted out more quickly. The particle size of the heat conduction metal particles is large, the nano carbon particles and the heat conduction metal particles can form the uneven heat dissipation microstructure on the surface of the shell body, the heat radiation area can be increased, and thereby heat dissipation performance of the heat conduction layer is further improved.

The invention provides carbon fiber composite conductive paper. The carbon fiber composite conductive paper is prepared from raw materials in percentage by mass as follows: 55%-95.9% of matrix fibers, 2%-37.5% of short carbon fibers, 0.2%-2% of a graphene mixture, 0.1%-0.5% of a dispersant and 1.8%-5% of hot-melt adhesive fibers. The invention further provides a preparation method of the carbon fiber composite conductive paper. The problems that an electric heating material prepared from existing conductive paper is uneven in surface heating, too large in temperature difference, unstable in heating performance, short in service life, low in infrared radiance and the like are effectively solved. The carbon fiber composite conductive paper can be widely applied to various planar far infrared electric heating elements.

The invention relates to anticorrosive paint for a die-cast aluminum heating radiator. The anticorrosive paint is composed of the following components in parts by weight: 35-55 parts of Ca-Zn-Se borophosphate, 15-25 parts of ceramic microbeads, 8.5-10 parts of betulin acid, 5-8 parts of modified phenolphthalein, 3-5 parts of iridium-acetylacetonate, 1.5-3.5 parts of acrylic acid, 0.6-1.2 parts of a wetting dispersant, 2.4-2.8 parts of tribenzyl phenol polyoxyethylene ether, 0.3-0.6 part of a thickening agent and 0.65-1.5 parts of an antifoaming agent. The anticorrosive paint disclosed by the invention has the advantages that 1, the production process is simple and reasonable, the input equipment is less, and the production cost is low; 2, the coating surface treatment requirement is low, the adsorption effect is excellent, the adhesive force is high, and the coating does not flake or discolor; 3, leveling and heat radiation effects are excellent, the heat transfer speed is high, and the heat efficiency is high; 4, the anticorrosive paint is resistant to acid, base and salt corrosion and seawater corrosion and excellent in anticorrosive effect; 5, the wear resistance and impact resistance are high.

The invention relates to a reflecting furnace for smelting tin lead materials, belonging to smelting equipment. The reflecting furnace is mainly composed of a furnace hearth (1), a furnace bottom smelting tank (2), a furnace wall (3) and a furnace top (4), wherein the furnace bottom smelting tank (2) is positioned below the furnace hearth (1), and a low fire baffle wall (6) is arranged between a fire chamber (5) in the furnace wall and the furnace hearth (1). A slag discharging opening (12) for discharging tin lead alloy is arranged on one side wall of the furnace near the position of a furnace tail, two working doors (13, 14) are arranged on the other side wall of the furnace, a smoke outlet (15) is arranged on the furnace wall at the tail part, and a charging opening (16) is arranged on the furnace top (4). The arc shape of the furnace top on the low fire baffle wall (6) is shown to press down towards the two sides; the position of the furnace top to the furnace hearth (1) is horizontal, and the position of the furnace top to the furnace tail is pressed towards the furnace tail in an inclined manner. The reflecting furnace has the advantages of high heat efficiency, quick material smelting, low cost and less coal consumption with the coal combustion rate of 42 to 48%.

The invention relates to the technical field of lighting equipment, in particular to an LED road lamp module with a plastic cooler and a manufacture method thereof. The LED road lamp module comprisesa lens and a plastic cooler. In the LED road lamp module with the plastic cooler and the manufacture method thereof, heat is produced by an LED bulb on a lamp panel, the bulb emits light and at the same time produces the heat, the temperature of the lamp panel is raised, an aluminum base plate on the back of the lamp panel is in contact with liquid in the plastic cooler, the heat is transferred into the liquid, dynamic circulating liquid heat convection is formed in the plastic cooler, the heat is uniformly and rapidly dispersed onto the surface of the plastic cooler, and a cooling process isfinished after heat exchange is carried out with surrounding air. The LED road lamp module has the advantages that although a difference between the temperature of the bulb and the surface temperatureof the cooler is small, a difference between the surface of the cooler and the temperature of the surrounding air is large, the heat radiation capability of plastics is great, and therefore, the whole cooling effect is great; and the material cost of the plastic cooler is low, the following processing procedures are few, the production efficiency is high, a cooling system is simple and easy, andthe popularization property is strong.