101results about How to "Improve heat radiation ability" patented technology

A cooling device for cooling a heat-generating member includes a refrigerant tank for boiling liquid refrigerant by heat from the heat-generating member and a radiator for cooling and condensing gas refrigerant from the refrigerant tank. The refrigerant tank has therein a plurality of refrigerant passages defined by ribs which are integrally formed with any one of opposite wall parts of the refrigerant tank. The ribs continuously extend in an up-down direction to be slightly longer than an up-down dimension of a boiling surface of the refrigerant tank. In the cooling device, because each passage width of the refrigerant passages is set to be equal to or smaller than double Laplace length, an outer diameter of bubbles in the refrigerant passages becomes larger, and liquid refrigerant can be moved upwardly by bubbles. Accordingly, it can restrict liquid refrigerant surface from being lowered even when gas-generating amount is increased.

The invention provides a building coating with a heat insulation function and a preparation method thereof. The building coating with the heat insulation function is divided into an internal wall coating and an external wall coating, wherein each of the internal wall coating and the external wall coating is composed of a basic carrier for film forming of the coating, a heat insulating material, a heat reflecting material, a heat radiating material, filler, an assistant and water. The preparation method comprises the following steps: preparation of heat insulating material slurry, preparation of function material slurry, grinding of slurry, and paint mixing. The film forming thickness of the building coating is 0.2-0.3mm, so that the building coating belongs to a thin building energy-saving coating; the internal and external wall building coatings have higher heat conducting resistance and lower convection heat transfer, so that the building coating has different heat radiating effects under different temperature environments in different seasons and has the heat insulation function; the building coating is high in safety and long in service life; and the preparation method is simple and is suitable for industrial production.

The present invention relates to a resin composition which is photocurable and thermosetting, and which comprises an acid-modified oligomer, a photo-polymerizable monomer, a thermosetting binder resin, a photoinitiator, at least two types of spherical alumina particles having mutually different particle sizes, and an organic solvent; a dry film solder resist obtained from the resin composition; and a circuit board comprising the dry film solder resist.

The invention provides alumina-based ceramic. The alumina-based ceramic contains 100 weight parts of alumina, 10 to 20 weight parts of strontium lanthanum manganate and 5 to 50 weight parts of sintering aid; and the chemical formula of the strontium lanthanum manganate is LaxSr1-xMnO3, wherein x is 0.15 to 0.20. The invention also provides a ceramic radiating substrate using the alumina-based ceramic and a preparation method for the ceramic radiating substrate. The alumina-based ceramic has a good radiating effect, so that the ceramic radiating substrate using the alumina-based ceramic has good radiating performance.

The invention discloses a preheating device for a chemical vapor deposition furnace. Air flow plates which are arranged in parallel so as to increase air processes and prolong heating time, and beams are arranged simultaneously so as to improve heat radiation capacity; therefore, the aims of fully and uniformly preheating organic air can be fulfilled. An outlet is provided with disturbance holes which are positioned on the same circumference; and a certain included angle is formed between the axial direction of the disturbance holes and a horizontal plane; after preheated air enters the disturbance holes, the preheated air is forced to be sprayed along the axial direction of the disturbance holes to form strong rotation air flow under the collision action of disturbance walls, and organic air which is decomposed in advance forms macromolecules under the actions of centrifugal force and polymerization along with the rising of the rotation air flow; and the macromolecules preferentially enter the bottom of a stock column under the double actions of inertia force and centrifugal force, so axial back mixing probability is reduced, the macromolecules are diffused and deposited in a prefabrication body to achieve the effect of densifying the bottom, the air which is not decomposed rises continuously to ensure that top pressure and air pressure are reduced, and finally the aims of densifying the whole carbon disc stock column can be fulfilled.

An aluminum melting furnace capable of increasing service life and heat efficiency comprises a shell body and a lining layer covered on the inner wall of the shell body. The furnace is characterized in that work layers in the lining layer, namely the work layers of the furnace bottom, the furnace wall and the furnace top, are integrally cast from castable refractory and constructed; wherein, the furnace top is in a flattopping structure as well as the integral cast structure with hanging anchorage bricks, the furnace wall is in a composite structure belonging to a straight vertical surface structure. Being fully cast, the lining of the aluminum melting furnace has no seam, smooth surface, high integral strength, good air tightness and stable structure in use, and can greatly reduce radiation loss and improve the heat efficiency; with nonoxides used in the lining casting material, the material does not shrink, crack, aluminize, uneasily adhere with slag and is not eroded by aluminum alloy melt with high thermal shock stability in the state of smelting operation. Compared with the service life of a traditional brick structure, the service life is improved more than 3 times.

The invention discloses an environmentally-friendly coating. The environmentally-friendly coating is prepared from the following components in parts by weight: 11 to 34 parts of resin emulsion, 6 to 22 parts of nano-ceramics, 12 to 19 parts of filler, 8 to 38 parts of pigments, 0.9 to 6 parts of adjuvants, 5 to 16 parts of auxiliary heat-insulating materials, 0.8 to 3 parts of lotus leaf hydrophobic agent, and 10 to 26 parts of deionized water. The environmentally-friendly coating disclosed by the invention has low damage to an environment and a human body, and has good heat insulation and self-cleaning effects.

The method is: its heating component is carbon fiber that is spiral wrap on the insulation framework, the joint is heat resisting steel joint having enclosed end; the heating component is blocked in the quartz capsule coated with infra red radiation paint, the quartz capsule is filled with high purity inert gases or is vacuum. The invention is specially applied in low temp baking and heating equipment.

The invention discloses a functional nanometer heat dissipation coating and a preparation method and application thereof. The functional nanometer heat dissipation coating is prepared from, by weight,20-60 parts of water soluble resin, 1-12 parts of a water soluble curing agent, 0.1-2 parts of a thickening agent, 40-70 parts of water, 0.1-0.5 part of a defoaming agent, 0.5-5 parts of a flatteningagent, 0.5-30 parts of auxiliaries and 0.5-5 parts of nanometer carbon materials. The heat dissipation coating contains various nanometer raw materials, when the coating is used for coating the surface of a heat dissipation device, the heat dissipation efficiency of the heat dissipation device can be greatly improved, the temperature of an electronic device is lowered, and therefore the service life of the electronic device is prolonged; meanwhile, the coating further has the functions of resisting corrosion, water, acid, soil, insulation and the like, no antiseptic and other treatment needsto be performed on the heat dissipation device, and the coating has the advantages of being environmentally friendly, safe, green and the like; the nanometer heat dissipation coating has the wide application prospect and the practical value in the field of electronic heat dissipation, and meanwhile the coating is simple in preparation technology, low in cost and suitable for large-scale production.

A motor drive apparatus includes a motor having a shaft, an end frame, and a control unit having a heat sink. The end fame and the heat sink are arranged to overlap at least partly when the end frame and the heat sink are projected on a plane, which is parallel with a rotation axis of the shaft. This arrangement improves heat radiation performance of the motor drive apparatus.

The invention discloses a low-carbon and environment-friendly distributed cooling system for an engine and a heat management method. The low-carbon and environment-friendly distributed cooling system for the engine comprises a plurality of sets of distributed cooling devices, a compartment heating device, a bus and an electronic control unit, wherein the distributed cooling devices are respectively used for cooling a cylinder cover, a cylinder body, pressurized air and an oilpan of the engine, and the compartment heating device is used for heating a compartment. Each set of distributed cooling device comprises a heat collector, one or more heat pipes, a connector, a heat radiator, an electronic fan, a heater, a temperature sensor and an interface; in the cold starting stage of the engine, the electronic fan is closed by an electronic control unit, the heater is started, and the cooled parts are preheated by utilizing the two-way heat-transfer characters of the heat pipes, so that the time consumed for cold starting is shortened, and the engine is enabled to rapidly enter a working state; and after the engine normally runs, the heater is closed by the electronic control unit, and the electronic fan is started, so that the distributed cooling devices are changed into a cooling working state. The low-carbon and environment-friendly distributed cooling system is particularly suitable for military or para-military application occasions requiring high response speed and high reliability.

The invention provides a gasification combustor of a solid fuel cooking range which comprises a first core body and a movable whirlwind combustion-supporting device. A plurality of air-in and gasification combustion-supporting holes are arranged on the first core body, a fire-sealing cover baffle plate is arranged on the inner wall of the first core body, and when an air blower is used for compulsorily supporting air for combustion supporting, the movable whirlwind combustion-supporting device is arranged on the fire-sealing cover baffle plate in the first core body. The movable whirlwind combustion-supporting device comprises a second core body, a top wall and a bottom wall, wherein the top wall is arranged on the upper portion of the second core body, and the bottom wall is arranged on the lower portion of the second core body. A plurality of second air-in and gasification combustion-supporting holes are arranged on the periphery of the second core body, and the bottom wall of the second core body is provided with a plurality of third air-in and gasification combustion-supporting holes which are coincident in slant directions. A cold furnace is easy to fire up and fast to inflame; flame rotates for combustion; and heat power is strong. The gasification combustor saves energy and is environment-friendly; and when fire is sealed, the movable whirlwind combustion-supporting holes are taken out, and the movable fire-sealing cover is arranged on the fire-sealing cover baffle plate to seal the fire. The gasification combustor is applicable to a boiler or a hot blast stove with solid fuel combusted, and use of combustion equipment with any structure such as the cooking range in a matched mode.

Optical fiber peg-top space applied light combination structure has a perpendicular configuration reality and its side faces are vertical with the underside. The outside of two side faces and the inside of underside are the fixing plane to three peg-tops. The rest side faces use to fix the electrical source box and cube mirror. The three peg-tops are perpendicular setting, and the peg-top of x axis and y axis is fixed on the outside of the reality side faces, the peg-top of z axis is fixed on the inside of the reality underside. Their fixing surfaces contact completely to increase the heat exchange area of the peg-top to reduce the heat resistance effectively. The three joining pieces connecting with peg-tops fix on one joining piece plane and put the three joining piece planes into one to connect with the jack of the reality connecting with system. The three peg-tops can debug alone and this is fit for fixing and maintenance the optical fiber peg-top. It is suitable for the gesture controlling of the space aerocraft with small volume, light weight, little heat resistance, high reliability security, well diathermancy.

The invention relates to the technical field of waste plastic reprocessing equipment and particularly discloses a broken plastic stirring device. The broken plastic stirring device comprises a material cylinder, a feeding device, a stirring device body, an air uniformizing device and a temperature increasing device. The feeding device comprises a feeding bin, feeding hoppers, a first screw rod, asecond screw rod, a first spiral blade and a second spiral blade, and the spiral direction of the second spiral blade is opposite to the spiral direction of the first spiral blade. The stirring devicebody comprises a stirring motor, a stirring shaft, a spiral stirring blade and a spreading disk, and the spiral stirring blade is of a structure gradually becoming larger from bottom to top on the stirring shaft. The air uniformizing device comprises a main air pipe, annular air uniformizing pipes and gourd-shaped air uniformizing nozzles. The temperature increasing device comprises a shell, twosupporting plates, insulating rings and heating pipes. The broken plastic stirring device has the characteristics that stirring is uniform, the manpower cost and the material resource cost are both low, and dust and moisture are easy to discharge.

Provided is a highly-reliable light emitting device which has good heat radiation capacity and uses a light emitting diode (LED) having high luminance and high output as a light source. The light emitting device includes: the light source; a first metal substrate on which the light source is mounted; a wire connected to the light source; a second metal substrate electrically connected to the light source by the wire and formed on the same plane as the first metal substrate to be insulated from the first metal substrate; a planar reflecting member placed on the first metal substrate and the second metal substrate, having a through hole that is smaller in diameter on the light source side than on a side opposite to the light source side, and having a side surface formed of an inclined reflecting surface on the through hole side; an encapsulant for covering the light source; a slit formed between the first metal substrate and the second metal substrate; and an insulating material for filling the slit.

The invention relates to an ultrathin spatial solar battery gluing and encapsulating mechanism, which comprises a working platform, a rotary table, a working rotary plate, two three-degree-of-freedom (X-axis, Y-axis and Z-axis) mobile mechanisms, a fixed tray, a carrying tray, a clamping mechanism, a cover glass tray, a needle tube fixing and refrigerating device and a sucker positioning clamp. The mechanism is designed into a four-station circular operating system, so operation can be performed on four stations simultaneously; therefore, the gluing work and the encapsulating work of an ultrathin spatial solar battery can be carried out simultaneously. On the premise of no influence on the systematic performance index, the ultrathin spatial solar battery gluing and encapsulating mechanism greatly improves the efficiency, saves the labor cost and enhances the reliability, and can be popularized in the encapsulating field of surface protection layers of integrated chip (IC) instruments.

The present invention provides a thermal conduction coating material, which comprises 50-75% of a PUA oligomer, 0.5-20% of 2-(2-ethoxyethoxy)ethyl acrylate, 0.2-10% of ethylene glycol diacrylate, 1-10% of a photoinitiator, 1-10% of nanometer powder, 0.2-1% of a dispersant, and 0.2-1% of a coupling agent, and can form a thermal conduction coating after the coating material is subjected to ultraviolet light curing. The invention further provides a composite heat dissipation film, which sequentially comprises a thermal conduction coating (I), a graphite sheet (II) and a double-sided adhesive layer (V) from top to bottom, has advantages of excellent bending resistance, excellent voltage breakdown resistance and excellent radiation heat dissipation performance, can effectively reduce the heat source temperature, and can meet the use requirements in the heat dissipation field.