127results about How to "Fast thermal conductivity" patented technology

The invention discloses an LED (Light Emitting Diode) lamp tube, which comprises a glass tube, lamp caps arranged at two ends of the glass tube as well as an LED lamp strip arranged in the glass tube, wherein the inner wall of the glass tube is coated with a light increasing and heat radiating film; and the LED lamp strip is fixedly adhered to the inner wall of the glass tube through a high heat conduction bonding adhesive. The light increasing and heat radiating film is an aluminum-coated layer, or a frosted heat conduction light increasing adhesive layer or a nano adhesive layer capable of increasing light and radiating heat. The LED lamp strip comprises a substrate, wherein a plurality of LED light sources are welded on the substrate, or an integrated light source consisting of an LED chip is packaged on the substrate; and a driving power supply module is also arranged on the LED lamp strip. According to the LED lamp tube disclosed by the invention, the light emitting efficiency, the light emitting angle and the illumination area of the LED lamp tube are increased; the problems of glare and point light existing in the LED lamp tube are solved; heat generated by an LED is transmitted to the whole glass tube through the substrate of the LED, so that the heat radiating area is greatly increased and the heat increasing speed of the LED lamp tube is increased; the LED lamp tube can be applied to a lamp holder of a traditional fluorescent lamp, and thus the generality of the LED lamp tube is greatly improved; and the replacement and use costs are reduced.

The invention discloses a composite phase-change energy storage material for microcapsules and a preparation method thereof. The coating of the microcapsule is made of silicon dioxide, and the core of the microcapsule is made of a phase-change energy storage material, wherein the phase-change energy storage material is a paraffin organic solid-liquid phase-change energy storage material. 0.2 to 0.5 wt.% of dispersed emulsifier, 52.5 to 62.5 wt.% of solvent water, 18.75 to 31.5 wt.% of phase-change energy storage material and 15.5 to 18.75 wt.% of inorganic silica source are matched and put into a reactor for stirring for 5 to 8 hours; the mixture is uniformly dispersed and emulsified at the temperature 3 to 8 DEG C higher than that for solid-liquid phase change; hydrochloric acid aqueous solution catalyst with the pH value of 0.93 to 4.07 or sodium hydroxide aqueous solution catalyst with the pH value of 8.0 to 12.0 is added into the emulsion; the reacting solution is naturally cooled to room temperature and precipitation solution is obtained; the precipitate is washed with the combination of water and petroleum ether, wherein the mass percent of the petroleum ether is 30 wt.%; then the precipitate is washed with deionized water and is filtered, and the product is naturally aired. The invention improves the technology of phase-change energy storage and conservation, and has the function of automatic temperature regulation, favorable physical and chemical stability, crack resistance, flame retardancy, wear resistance and high thermal conductivity.

The invention provides a flat double-face phase-change restraining heat conducting board structure and a manufacturing method thereof. The flat double-face phase-change restraining heat conducting board structure is a composite board type structure. The surface of the flat double-face phase-change restraining heat conducting board structure is a plane. Heat superconducting pipelines which are in a specific shape and are communicated with one another are arranged in the flat double-face phase-change restraining heat conducting board structure. The heat superconducting pipelines are closed pipelines and are filled with a heat conducting working medium. Groove channels communicated with one another are formed in the heat conducting board structure with the double faces being planes and the groove channels are filled with the heat conducting working medium and closed, so that the characteristics that the heat conducting speed is high and the temperature uniformity is good for phase-change restraining heat conduction are achieved. The double faces of the phase-change restraining heat conducting board structure are designed to be the planes so that the structure can be well combined with a high-power device and a cooling fin set, and application occasions and the range of a phase-change restraining heat conducting board can be expanded greatly. A blowing and expanding process is adopted to obtain the flat double-face board structure with the internal groove channels, and the structure has the characteristics of being low in cost, easy to machine and high in reliability.

The invention provides a nano aluminum nitride heat radiation paint for an LED lamp, wherein the paint is prepared by the raw materials by weight (Kg): 30-34 parts of organic silicone resin, 12-14 parts of E-12 epoxy resin, 6-8 parts of methylenebiscyclohexanamine, 12-15 parts of nano aluminum nitride powder, 1-2 parts of hydroquinone, 4-5 parts of silane coupling agent KH550, 1-2 parts of cross-linking agent TAC, 2-3 parts of alumina, 2-3 parts of silicon carbide, 1-2 parts of sodium metasilicate, 1-2 parts of triethanolamine, 4-6 parts of PEVE fluorocarbon resin, 3-4 parts of glass bead, 1-2 parts of ammonium polyphosphate, 8-10 parts of xylene, 10-12 parts of ethyl acetate, and 4-5 parts of film forming auxiliary agent. Nano aluminum nitride powder is added so as to greatly raise heat conduction rate of the paint, and to make the paint have good heat radiation effect; silicon carbide is added so as to raise the wear resistance of the paint; the paint has advantages of large paint adhesion stress, not-easy shedding, and good fireproof performance; and the organic silicone resin is used as a base material, so as that the paint has good insulating property and excellent thermo-oxidative stability.

The invention relates to the technical field of electric vehicles, in particular to a power battery box for an electric vehicle. The power battery box comprises a box cover and a box body, wherein a lining is connected to the inner wall of the box body and filled with a phase change material; and the box body is formed by extruding molding of an aluminium alloy material. The box body is small in density, lighter in weight, convenient to process and manufacture and low in processing cost; meanwhile, the lining is connected to the inner wall of the box body, and can enhance the integral rigidityand strength of the box body, play the role of vibration and energy absorption and improve the protective capability of the box body; and the lining is filled with the phase change material, and thephase change heat accumulation principle of the phase change material is utilized to assist a heat management system in temperature adjustment of the battery box, so that the temperature in the battery box can meet the requirements on the performance and the service life of a power battery, and the power battery can efficiently work at an appropriate temperature.

The invention provides a heat-superconducting radiator and a manufacturing method thereof. The heat-superconducting radiator comprises a plurality of partition plates and a plurality of heat-superconducting radiating fins, wherein the partition plates and the heat-superconducting radiating fins are alternately arranged; one end surface of each partition plate is flush with one end surface of each heat-superconducting radiating fin to form a mounting surface suitable for mounting a power device; and the heat-superconducting radiating fins are fixedly connected with the partition plates. Conventional radiating fins in the prior art are replaced with the heat-superconducting radiating fins, so that the heat-superconducting radiator is higher in heat-conducting rate and higher in fin efficiency; the efficiency of the radiating fins is not affected by the height; the radiating capacity of the radiator is improved; and the heat-superconducting radiator provided by the invention is convenient and flexible to manufacture, low in cost, high in radiating capacity, light in weight and small in size, and has a wide market prospect and great economical value.

The invention discloses a high-molecular LED (Light Emitting Diode) radiation material. The high-molecular LED radiation material disclosed by the invention has the advantages of simpler preparation process and forming process, low cost, light weight and high heat-conducting velocity; and a radiator manufactured through a formula can be used for a long time at 200 DEG C and is more than 8 years in aging life.

The invention relates to a method for preparing a polyethylene packaging sheet filled with synthetic porous calcium silicate modified powder, and belongs to the technical field of processing of a packaging sheet. The preparation method comprises the following steps: selecting synthetic porous calcium silicate powder as a main raw material; and preparing the synthetic porous calcium silicate modified powder after drying, reducing nucleating ability, improving antioxidant activity, modification of silane coupling agent on surface, self-assembly of the surface, and lubricating modification; then preparing the polyethylene packaging sheet filled by the synthetic porous calcium silicate modified powder from the synthetic porous calcium silicate modified powder and polyethylene through production lines of a hot cutting double-order extruder and a sheet molding extruder. The polyethylene packaging sheet filled by the synthetic porous calcium silicate modified powder prepared by the method has the characteristics of being low in density, high in strength, good in heat retaining property and sound insulation, high in adsorptivity and the like. The preparation method disclosed by the invention is simple in process, low in demands on equipment, convenient to operate and control, easy to achieve industrial production, and free of special equipment.

The invention discloses a wear-resistant and corrosion-resistant mould material which is prepared from the following materials by mass percent: 30-40% of polyurethane resin modified by organic silicon, 10-20% of butyl methacrylate, 3-5% of a plasticizer, 3-5% of a surface active agent, 3-5% of silicon carbide, 3-5% of graphite, 3-5% of montmorillonite, 1-3% of a curing agent and the balance of water. According to the scheme, the polyurethane modified by organic silicon is taken as a base material, and isocyanate is taken as the curing agent in a matching way, so that the molded mould material has excellent toughness and processing performance, and the service life is remarkably prolonged; the silicon carbide and yttrium oxide are fed into the mould material, so that the wear resistance and the corrosion resistance of the material are improved, the material has better stability and environmental compatibility, and the service life of a mould is prolonged; the nanoscale powdered graphite is fed into the material, so that the heat conduction speed is accelerated, and the material has excellent heat transfer performance and resistance to heat and humidity.

The invention belongs to the field of functional materials and electric heating elements and particularly relates to a graphene far-infrared heating negative-ion light wave plate and a manufacturing method thereof. The graphene far-infrared heating negative-ion light wave plate comprises a front-side plate, a heating plate, a heat insulation layer, a reflective layer and a rear cover plate which are sequentially arranged in the up-and-down order, wherein the heating plate is provided with glass fiber cloth, a resin adhesive layer and a graphene nano far-infrared negative-ion composite fiber conductive heating film, and the resin adhesive layer and the glass fiber cloth are sequentially arranged at the upper part and the lower part of the graphene nano far-infrared negative-ion composite fiber conductive heating film. As far-infrared transmitted waves and crop-absorbed sunlight have the consistent nutrition wavelength for photosynthesis, photosynthesis of crops can be promoted, the germination rate and the emergence rate of the crops are improved, the growth cycle is shortened, accordingly, maturation of the crops is quickened, and the growth environment can be regulated and controlled and the temperature and the humidity can be controlled according to different growth cycles of the crops.

The invention provides an aluminum nitride heat radiation paint for an LED lamp, wherein the paint is prepared by the following raw materials by weight: 45-48 parts of organic silicone resin, 4-6 parts of polyamide polyamine epichlorohydrin resin, 4-6 parts of trimethylhexamethylenediamine TMD, 22-24 parts of aluminum nitride, 3-5 parts of boron nitride, 2-3 parts of nano hollow bead, 1-2 parts of silica sol, 2-3 parts of tung oil, 14-17 parts of acetic ester, 7-9 parts of 2-butoxy-ethanol, 3-5 parts of phthalic polyester, 2-3 parts of isoprene, 2-3 parts of isopropanol, and 3-4 parts of film forming auxiliary agent. Aluminum nitride powder is added so as to make the paint have high heat conductive rate and good heat radiation effect; boron nitride is added so as to reinforce heat radiation effect and thermal ageing resistance; and silica sol is added so as to enhance adhesion stress of the paint, make the paint firm, and make the paint have functions of anti pollution, dust proof, aging resistance, fire proof, etc. Organic silicone resin is used as a base material to make the paint have advantages of good insulating property and excellent thermo-oxidative stability.

The invention discloses a toilet seat and a preparation method. The toilet seat includes a heating unit and a wrapping body; the wrapping body wraps the heating unit through a casting molding process.The toilet seat has the advantages that by means of the toilet seat, the heating unit of the toilet seat is sealed in a toilet seat body to form the integrated toilet seat, not only is the sealing effect great, the safety is high, but also the process is simple, the heat conducting performance is better, and more energy is saved. The invention also provides the preparation method for preparing the toilet seat.

The invention discloses an injection mold for a refrigerator drawer. The injection mold comprises a mold main body, an upper mold body and a lower mold body, wherein the mold main body is composed ofthe upper mold body and the lower mold body, the upper mold body is positioned above the lower mold body, a heat dissipation pipeline is arranged inside the mold main body, a cavity is fixedly connected to the upper part of the heat dissipation pipeline, a semiconductor refrigerator is arranged inside the cavity, a heat dissipation fan is inlaid at the upper part of the cavity, and an injection molding opening is formed in one end of the upper part of the mold main body. According to the mold, by arranging an ice crystal, a graphene heat conduction layer, a semiconductor refrigerator and the heat dissipation fan, the upper mold body is effectively cooled, the cooling effect of the mold main body is improved, cooling forming of the refrigerator drawer is facilitated, the forming uniformityof the mold main body is effectively improved by arranging a vibration motor and a vibration spring, bubble grooves and the like are avoided, the formed refrigerator drawer can be slowly pushed out ofthe mold by arranging a hydraulic rod and a sliding block, and the lower mold body can be conveniently separated from the refrigerator drawer.

The invention relates to special cement-based self-leveling mortar for indoor floor heating and a preparation method thereof. The special cement-based self-leveling mortar is prepared by mixing powder and water according to the mass ratio of 1:(0.22-0.25), wherein the powder is prepared from the following components in parts by weight: cement, anhydrite, alpha semi-hydrated gypsum, 40-70-mesh heat-conducting filler, 70-140-mesh heat-conducting filler, 200-mesh heat-conducting filler, 500-mesh heat-conducting filler, heat-conducting soft metal wires with the length of 6mm, redispersible rubber powder, cellulose ether and the like. The invention overcomes the defects that: cement-based self-leveling needs to be used for leveling when the existing indoor floor heating is laid, however, no cement-based self-leveling special for floor heating exists in the market at present, common cement-based self-leveling is mostly used, the heat conductivity coefficient is low, the heat conduction rate is slow, the heat loss amount is large and the like. The method is based on special cement and Portland cement which cooperate with the heat-conducting filler with higher heat conductivity coefficient, the heat-conducting soft metal wire and other preferable additives, so that the mortar has the advantages of high heat conductivity coefficient, high heat-conducting rate and low heat-conducting loss.

The invention discloses a temperature-controlled heat storage device. The temperature-controlled heat storage device comprise a first outer wall, a second outer wall, an accommodating plate piece, wherein the first outer wall is in contact with a thermal source; the second outer wall and the first outer wall are arranged at an interval; the accommodating plate piece is arranged on the side surfac,facing the second outer wall, of the first outer wall; a heat-storage interlayer is formed by enclosing between the first outer wall and the second outer wall; an accommodating cavity is formed by enclosing between the accommodating plate piece and the first outer wall; the accommodating plate piece is positioned in the heat-storage interlayer; a heat-transmission substance is arranged in the accommodating cavity; a first phase change material is arranged in the heat-storage interlayer; the first phase change material is in contact with the accommodating plate piece; the heat-transmission substance is arranged in the accommodating cavity to build the surface extruding out of the first outer wall of the accommodating plate piece of the accommodating cavity, a contact area between the firstphase change material and the accommodating plate piece is increased remarkably relative to a contact area between the first phase change material and the first outer wall; the heat-transmission substance passes through the accommodating plate piece after absorbing the heat of the thermal source, and the contact area between the heat-transmission substance and the first phase change material is increased remarkably, and the heat conduction rate of the first phase change material is increased.

The invention relates to a dual-channel heat transmission heat exchanger with a rectangular heating pipe and a manufacturing process of the dual-channel heat transmission heat exchanger. The heat exchanger comprises outer heat supply pipes the longitudinal sections of which are rectangular, wherein the outer end of each outer heat supply pipe is plugged through an end socket closure plate; a notch is correspondingly arranged on the pipe walls of the same ends of the two adjacent heat supply outer pipes, another notch is arranged on the other same ends of the next adjacent outer heat supply pipes are correspondingly, and the outer heat supply pipes are communicated through the notches; the outer heat supply pipes are internally provided with tap water heat absorption pipes which are communicated through tap water communicating pipes, and the tap water communicating pipes pass through the notches; and inner heat supply pipes are arranged in the tap water heat absorption pipes, and the inner heat supply pipes are communicated with a cavity body of the outer heat supply pipes. According to the heat exchanger and the manufacturing process, the effective heat energy is utilized fully, a double-pipe cold fluid wall of at the center of a pipe cavity is heated, the heat-transfer area is increased, heat fluid and cold fluid are heated in a circulating manner by three channels, and the heat transfer efficiency is improved. A stainless steel thin wall pipe, a plate manufacture punching, stretching and flanging are adopted; the thin wall stainless steel welding difficulty is reduced due to the embedding type, the side pinched, so that the welding is easy, and acid is filled in an inner channel for cleaning scale generated in the inner channel.

The invention discloses a pipe-communicated double-partition-wall heat transfer heat exchanger and a manufacturing process thereof. The heat exchanger comprises two or more tap water heat absorbing outer pipes, wherein the tips of the tap water heat absorbing outer pipes are fixedly connected with tap water heat absorbing outer pipe sealing heads; heat supply pipes are arranged in the tap water heat absorbing outer pipes; the tap water heat absorbing outer pipes are communicated with each other through a tap water communicating pipe; the heat supply pipes are communicated with each other through a heat supply pipe communicating pipe; a hot air inlet and a hot air outlet are fixedly communicated with the inlet ends and the outer ends of the heat supply pipes respectively; and a tap water inlet and a tap water outlet are fixedly communicated with the inlet ends and the outlet ends of the tap water heat absorbing outer pipes respectively. The heat exchanger is characterized in that: tap water heat absorbing inner pipes are arranged in a part of or all of the heat supply pipes, and are communicated with the cavities of the tap water heat absorbing outer pipes. The heat exchanger has the advantages of simple structure, easiness for welding kneading edges, high pressure bearing, no water leakage and high heat exchange efficiency.