220results about How to "Increased cooling surface area" patented technology

The invention discloses an inverted mounting LED chip based on double-faced shrinkage pool substrate and component gradual change buffer layer, wherein the chip comprises a sapphire substrate distributed with 102-104 shrinkage pools at upper and lower surfaces, an AlxGa1-xN component gradual change buffer layer composed of an unit layer formed by k non-doping AlxGa1-xN epitaxial materials, a n-type GaN epitaxial layer, an InGaN / GaN multi-quantum well, a p-type GaN layer, a transparent ITO (indium tin oxide) conductive film, an inverted mounting welding electrode and a silicon substrate from upper to lower. The LED chip disclosed by the invention uses the shrinkage pool structure for improving the emergent probability of LED emergent lights, and increasing the heat radiation area and growth stress acting range of the substrate, so that the GaB epitaxial quality and the radiation composite luminous efficiency are improved; the buffer layer of the n-type GaN epitaxial layer is manufactured by the AlxGa1-xN with gradually reduced Al component, so that the light-emitting efficiency and the internal quantum efficiency of the LED are improved, and a relatively high light output power is obtained.

The invention discloses a coating for cooling the surface of a light-emitting diode (LED) radiator. The coating is characterized by being prepared from the following components in parts by weight: 6-20 parts of inorganic colloidal particle, 0.5-2 parts of carbon nano-tube, 15-80 parts of electron transition spinel, 0.05-2 parts of rare-earth element oxide, 0.1-0.3 parts of stabilizer, 3-10 parts of epoxy resin, 3-10 parts of methyl methacrylate and 2-5 parts of ethylene glycol. The coating has obvious heat dissipating and cooling effects, is not affected by surrounding medium when taking the cooling effect, can be used in a vacuum environment, also has the advantages of good self-cleaning property, corrosion resistance, waterproofness, fire retardancy, insulativity, and acid and alkali resistance, and convenient construction when taking a radiation cooling effect.

The invention discloses a kind of radiator, including at least: a substrate and at least a columnar fins which includes a cylinder and a column cap of at the bottom of the cylinder, in which, the bottom of the column cap and the upper surface of the substrate are fixed, and the column cap and the cylinder form a step-shape. Accordingly, the present invention also discloses a method for manufacturing the radiator, including: it makes each cylinder of the columnar fins go through the corresponding hole on the cover, and makes the column cap connect with the bottom of the cover. And then it fixes the cover on the substrate. In addition, the invention also discloses a kind of electronic equipment with this kind of radiator.

The invention discloses paint with strong adhesion for cooling the surface for an LED (light emitting diode) radiator. The paint is characterized by being prepared from the following components in parts by weight: 10-25 parts of inorganic colloidal particles, 1-3 parts of carbon nano-tube, 25-90 parts of electron transited spinel, 0.05-1.5 parts of rare earth oxide, 0.1-0.5 part of a stabilizing agent, 3-15 parts of epoxy resin, 2-10 parts of methyl methacrylate, 10-25 parts of nano- diatomite and 2-10 parts of ethylene glycol. The paint has remarkable heat dissipating and cooling effects, is not influenced by peripheral media, can be used in a vacuum environment, plays a role in radiating and cooling, and has the advantages of good self-cleaning performance, corrosion resistance, water resistance, flame retardance, insulating performance and acid-alkali resistance, and is convenient to construct.

The present invention provides a LED street lamp having high heat dispersion, including a LED source and its driving circuit, the LED source and its driving circuit are fixed on the aluminum base circuit wafer, characterized in that the aluminum base circuit wafer is fixed on the metallic lamp case, being integrity with radiator and lamp. The LED street lamp of the invention greatly enhances the radiating performance of the LED circuit wafer, reduces working temperature of LED directional light, enhances working life of LED source.

The invention provides a convection heat dissipation type LED head lamp, comprising a plurality of LED lightening and heat dissipating units, a substrate at which the lightening and heat dissipating units are arranged and a framework; the substrate is fixedly connected with the framework; wherein, the substrate comprises a plurality of strip bodies which are arranged with a certain space length or take a gridding shape to form a hollowed-out structure, so that a plurality of channels which are capable of direct convection with the outside air are formed on the substrate; the strip bodies or the gridding structure is provided with the LED lightening and heat dissipating units at intervals; the LED lightening and heat dissipating units comprise LED chips, circuit boards, circuit accessing pieces and corresponding radiators and the LED lightening and heat dissipating units constitute an independent water-poof sealing member. The head lamp has excellent moisture-proof, water-proof and heat dispersion performance, modular structure and easy assembling, production and on-site maintenance.

The invention provides a heater for a steel rail welding joint heat treatment device, comprising a plurality of fire holes. The heater surrounds the steel rail welding joint and carries out the heat treatment for the steel rail welding joint by using the gas through the fire holes. The heater is made from the metal which has the thermal conductivity coefficient of not less than 350 W / m.k and the radiating surface area of not less than 240,000 mm2. The invention also discloses the steel rail welding joint heat treatment device which comprises a support structure, the heater and a sliding mechanism, wherein the support structure is fixedly arranged relative to a steel rail, the sliding mechanism is provided with a first end and a second end and is supported on the support structure to slide on the extension direction of the steel rail, and the heater is arranged on the sliding mechanism.

This invention relates to new double-slope wave trickle fillings of a cooling tower, in which two adjacent sets of main cooling wave bands are arranged reversely in stagger with a pitch of waves in between, the distance of the internal binding points is 2-3 times that of the exterior one, a secondary stagnant wave groove is set on the wave band and the cross section is a sine wave, the angle between the stagnant wave groove and the length edge is 15deg, a shunt bank is set between the peak of a main wave band and the valley of the adjacent main wave band to transit smoothly and the highest point of the shunt bank is 4 / 1-2 / 1 of the peak.

The invention relates to an LED (light-emitting diode) light bulb which comprises a light source module, a power module, a radiator, an insulating sleeve, a lamp hood and a lamp holder, wherein the insulating sleeve is an irregular round pipe; an annular flange is arranged on the outer surface of the insulating sleeve; the power module is arranged inside a center hole of the insulating sleeve; the lamp holder is fixed at the lower part of the flange on the outer surface of the insulating sleeve while the radiator is fixed at the upper part of the flange on the outer surface of the insulating sleeve; the light source module is arranged on a disc plane formed by the upper end of the radiator sinking inwards; and the light source module and an insulating element are fixed and locked while the lamp hood is locked inside a radial annular groove at the upper brim of the radiator. The LED (light-emitting diode) light bulb is simple in structure, convenient to install, and good in radiating effect, the service life of the bulb is greatly prolonged, and the production efficiency is improved.

In the riveting technique, forming mould is installed in clamp. There are multiple punches in the forming mould. Fin is composed of multiple sheets, and there is prearranged gap between adjacent fins. Fins can be inserted and positioned in the forming mould. Fins and punches are staggered set up. Floor plate with grooves is positioned on the clamp. Punch press pushes back face of floor plate to make fins plant and position on the grooves. Being pushed by punches, surface of floor plate on two sides of fins generates deformation so as to rivet and solidify fins. Comparing with prior art, the invention reduces breakdown of the forming mould effectively, raises rate of good products, precision, and quality.

The invention discloses a water-cooled radiator, a fabrication method thereof and a cooling device with the radiator. The water-cooled radiator comprises a heat sink and water tanks, wherein the heat sink comprises a groove-shaped metal body and a plurality of cooling fins, the cooling fins are arranged on the body, the metal body is provided with a plurality of water-cooled passages passing through the two ends of the metal body, gaps between grooves and the cooling fins are directly communicated in a pass-through way to form first cooling air ducts in a penetrating way, a second cooling air duct is formed between adjacent two cooling fins, the first cooling air duct and the second cooling air duct are mutually communicated, the bottoms of the cooling fins and the metal body are a continuous integrated structure, the water tanks are arranged at the two opposite ends of the metal body and are provided with water chambers used for accommodating a working liquid, and the water-cooled passages are communicated with the water chambers. The fins and the metal body are the integrated structure, the problems of influence in heat conduction and liquid leakage caused by unfavorable welding are prevented to the greatest extent, the welding process is substituted by integrated molding, the first yield is high, the manufacturing cost is relatively reduced, the cooling efficiency is high in stability, and high consistency is achieved.

The invention relates to the technical field of photovoltaic microgrid, and discloses a switchgear for photovoltaic microgrid with heat dissipation function, including a cabinet body and a base, the top of the cabinet body is fixedly connected with a top plate, and the top of the cabinet body is connected with a A through pipe, the top of the through pipe runs through and extends to the top of the top plate, the top of the through pipe is fixedly communicated with an exhaust device located on the top of the top plate, the exhaust device includes a fixed plate, and the outer side of the fixed plate is fixed Blades are connected, and bearings are fixedly connected to the bottom of the blades. The photovoltaic microgrid switchgear with heat dissipation function, through the setting of the exhaust device, uses the natural wind speed of nature to drive the turbine to rotate, and uses the centrifugal force and negative pressure effect to convect the air inside and outside the cabinet, which can quickly discharge the hot air inside the cabinet. The effect of heat dissipation is achieved, and the exhaust device does not need electricity, has no noise, and can run for a long time, thereby achieving the effect of energy saving and environmental protection.

The invention provides an air cooling system of an electromagnetic heating temperature-control system. The air cooling system includes a heat radiation portion comprising heat conduction strips, a radiating fin and an air channel, and a wind power source. The heat conduction strips are at least two with length directions perpendicular or nearly perpendicular to a winding direction of an electromagnetic coil of the electromagnetic heating temperature-control system, and each are provided with a striped structure in close contact with an outer wall of a temperature-control object of the electromagnetic heating temperature-control system. The air channel is formed between the radiating fin and the outer wall of the temperature-control object and / or other parts of the heat radiation portion. An outlet of the wind power source is connected to an inlet of the air channel. The air cooling system and the electromagnetic heating temperature-control system using the air cooling system minimize leakage flux, improve heating efficiency and heat radiating efficiency, prevent vortex in air-cooled structural components, and achieve the purposes of stable temperature control and efficient energy-saving.

The invention provides a manufacturing process for a copper-based printed circuit board with embedded circuits. The manufacturing process comprises the following steps: a heat dissipation plate is provided, and grooves are etched in the surface of the heat dissipation plate; a copper-clad plate is provided; the bottom surface of the copper-clad plate is glued after copper removal; the copper-clad plate is hollowed out, and non hollowed-out areas of the copper-clad plate are arranged in the grooves; the copper-clad plate and the heat dissipation plate are combined by pressing, and a top surface is ground flush; and graph circuits are manufactured on the top surface of the copper-clad plate to form the copper-based printed circuit board with embedded circuits. According to the manufacturing process for the copper-based printed circuit board with the embedded circuits, the copper-clad plate is embedded in the grooves of the heat dissipation plate, electronic elements can be directly contacted with the heat dissipation plate for rapid heat dissipation, the reliability of the electronic elements is improved, the entire working stability of an electronic product is improved, and the service life of the electronic product is prolonged.

The invention discloses a resin heating and drying system of photo-curing rapid forming equipment. The resin heating and drying system comprises a resin groove, a closed working chamber and an air heating and injection control device, wherein an interlayer is arranged between an inner cavity and an outer cavity of the resin groove, an interlayer air inlet is arranged on the bottom part of the resin groove, and an interlayer exhaust passage is arranged above the resin groove; the closed working chamber a hollow cavity body which is arranged above the resin groove and is in sealed connection with the resin groove, and the top part of the closed working chamber is provided with a working chamber exhaust port; and hot air output by the air heating and injection control device is injected into the interlayer through the interlayer air inlet, flows in the interlayer, is discharged into the closed working chamber through the interlayer exhaust passage, then is discharged by the working chamber exhaust port, and is input into the air heating and injection control device for heating circulation. The resin heating and drying system can realize omnibearing uniform heating and thermostatic control in six directions of resin in the resin groove, ensures that the resin temperature on a light beam scanning plane is kept at an ideal set value, and simultaneously can prevent a photosensitive resin from being exposed in air for along time to absorb moisture in the environment.

The invention relates to a radiation device and a surface processing method. The radiation device includes a radiation body, wherein, the radiation body is made of aluminum material or the outer surface is provided with an aluminum film; the aluminum surface of the radiation surface is attached with silver micron cluster. The surface processing method of the radiation device includes the following steps: use acid solution to perform corrosion processing on the aluminum surface of the radiation body; and immerge the aluminum surface after corrosion processing into silver amine solution, which contains a reducing agent for silver ions exchange. The invention improves the radiation efficiency, because of large radiation surface area attached with silver micron cluster and large silver thermal coefficient. The radiation device surface processing method of the invention has the advantages of convenient and simple process course and easy operation realization.

The invention provides operating the dry or solvent fractionation of oils and fats in a crystallizer comprising a crystallization vessel (1,2), an agitator, cooling means and a drive, wherein said drive provides said agitator with an oscillating motion, and / or a rotating motion around an axis, with the proviso that each point of said agitator moves at substantially the same linear speed.The invention also provides a crystallizer comprising a crystallization vessel (1,2) having a polygonal cross-section, an agitator and a drive, wherein said drive provides said agitator with an oscillating motion, and wherein said agitator is not inclined to the moving direction.

The invention discloses a combination device with a radiating device, wherein the radiating device is composed of a plurality of cylinder bodies made from heat conduction materials, one end of each of the plurality of cylinder bodies is combined with a heating element to be processed so as to appear in a radial cone solid structure, an auxiliary radiator is further arranged on the radiating device to increase the superficial heating area; the radiating device and the auxiliary radiator are made by combining components which are made of various materials and have different appearances and structures, wherein the components are made by various, the changes on the appearance and the structure can enlarge the superficial area contacting with the air, thereby being helpful for radiating; and the composite of a plurality layers of heat conduction material can contribute to the heating effect. According to the radiating device, the heating convection space is large with no blind angle, and the heating effect is good, so that the heating elements can be protected so as not to be damaged.

The invention belongs to articles for daily life, and relates to a fin type heat-insulation and radiating cup, which consists of a cup body (1), a plurality of fins (3) and fin joints (4). The fins (3) which are uniformly distributed peripherally are arranged on the outer surface (2) of the cup body (1) axially, the outer surface (2) is connected with the fins (3) via the fin joints (4), and the fins (3) can rotate at the fin joints along axial directions. The fins (3) are C-shaped, and the radian of the fins (3) matches with that of the cup body (1), so that the fins (3) can tightly contact with the cup body (1) to guarantee that a heat transfer principle is realized. The radius of the cup body (1) is a critical heat transfer radius of an environment with the cup body (1). The fin type heat-insulation and radiating cup has the advantages that the fin type heat-insulation and radiating cup is simple in structure, easy in manufacture, low in cost and convenient in popularization, is multipurpose, can realize double functions of heat insulation and radiating effectively and simultaneously meets needs of people in daily life.

The invention discloses a heat dissipation module and a centrifugal fan thereof. The heat dissipation module includes a centrifugal fan, a second heat dissipation fin array, and a heat pipe. The centrifugal fan includes an outer housing, a first heat dissipation fin array, an impeller and a rotation-driving device. The outer housing has an axial air inlet and a radial air outlet. The rotation-driving device is located within the outer housing and used to drive the impeller to rotate. The second heat dissipation fin array is attached to the radial air outlet. An end of the heat pipe is in contact with both the second heat dissipation fin array and a flat wall of the outer housing on which the axial air inlet is located.

The invention relates to a chip packaging and radiating mode. A chip packaging structure prepared through the mode comprises a chip main body, a macromolecule packaging material layer and at least two thermal bimetallic strip assemblies. The chip packaging and radiating mode has the beneficial effects that the radiating surface area is increased when chips emit heat, and the radiating surface area is reduced when the chips do not emit heat, so that dust accumulated on the surfaces of the chips is reduced, and the radiating efficiency of the packaging structure is improved.

The invention discloses a biomass waterproof coating and a preparation method thereof. The coating consists of two parts: a component A super-hydrophobic material and a component B coating composition; the component A super-hydrophobic material comprises, in parts by mass, 2-10 parts of graphene, 15-30 parts of a mixed acid solution, 5-12 parts of an amino ethyoxyl silane-toluene mixed liquid, 5-12 parts of fluoroacrylate, and 20-35 parts of a methanol solution and is prepared by covering the surface of graphene with two layers of waterproof films through a dip coating method; the component B coating composition is prepared from the ingredients in parts by mass: 20-30 parts of lignin, 20-30 parts of starch, 16-18 parts of diatom ooze, 10-12 parts of ash-calcium, 11-15 parts of heavy carbonate calcium, 0.5-1 part of a defoaming agent, 0.8-1 part of a dispersing agent and 15-30 parts of deionized water; the waterproof coating is prepared by mixing the component A super-hydrophobic material and the component B coating composition. The biomass waterproof coating adopts starch, lignin, diatom ooze and other biomass raw materials, and has environmental-protection significance in both production and application; with addition of the super-hydrophobic material, the strength, heat dissipation, thermal conductivity and other properties of the coating are improved while a coating layer is endowed with more uniform and better waterproof performance.

The invention discloses a high-efficiency heat dissipation device for a computer main box, which comprises an outer box of a machine body, an inner box of a machine body and a condensation box. The inner box of the machine body is placed in the inner cavity of the condensing box. The high-efficiency heat dissipation device of the main computer box has a simple structure. The condensate in the condensing box is pumped through the water pump passing through the first connecting pipe, and the condensate is input into the connected return pipe. To cool the heat generated by the operation of the main computer case, the condensate that has absorbed the heat enters the cooling plate and the annular tube on the cooling plate. At the same time, the second motor above the cooling plate drives the fan driven by the first motor to rotate back and forth, blowing away the cooling plate and the annular tube. The heat of the condensate in the tube is cooled by heat transfer on the one hand, and the heat on the surface of the cooling plate and the annular tube is blown away by the fan on the other hand, so as to complete the heat dissipation, which has strong practicability.

The invention discloses a motor shell of a ventilated motor. The motor shell of the ventilated motor is characterized that a shell body is included, at least four panels which are arranged in a circle are integrally arranged on the periphery of the shell body, a plurality of first cavities are arranged between the panels and the shell body, cooling air enters the shell body through the first cavities, a plurality of first radiating ribs are arranged in the first cavities, and the first radiating ribs are integrally connected with the shell body. The motor shell of the ventilated motor has the advantages that due to the fact that the first radiating ribs and second radiating ribs are arranged in the first cavities and second cavities respectively, the radiating surface area of the shell is increased, and the hardness of the shell is increased; due to the fact that at least four panels which are arranged in a circle are integrally arranged on the periphery of the shell body, the motor can be placed stably and is prevented from rolling, a motor name board can be pasted on the motor conveniently, a junction box can be configured conveniently, and a base anchor can be mounted conveniently according to user requirements. Further, the whole motor shell is simple in structure and easy to machine, materials and manpower cost are saved, and production efficiency can be improved greatly.

The invention discloses a squirrel-cage rotor adapting to a skin effect to improve the conductivity of a conducting bar. The squirrel-cage rotor comprises a first fastening ring and a second fasteningring, and end ring sets facilitating heat dissipation are fixedly installed on the inner wall of the first fastening ring and the inner wall of the second fastening ring. Composite conducting bar mechanisms with electrical conductivity and thermal conductivity are mounted on the inner side of the end ring group at equal intervals; according to the squirrel-cage rotor adapting to the skin effect to improve the conductivity of the conducting bar, the cost is reduced by reducing the use of silver and copper, and most of the composite conducting bar layer is made of aluminum, so that the composite conducting bar layer is light in weight, the dynamic load generated by the operation of the composite conducting bar layer is reduced, and stable current transmission is facilitated to ensure that the conductivity and the thermal conductivity are in the optimal state.

The invention provides a dual-light-source system integrated LED vehicle lamp which comprises a heat dissipation support, a lens, an installation plate, a light barrier, a low-beam lamp bead and a high-beam lamp bead. A containing cavity is formed in the heat dissipation support. The lens is installed at one end of the heat dissipation support. The installation plate is arranged in the containing cavity and comprises an upper installation face and a lower installation face. The low-beam lamp bead at least comprises a commonly-packaged LED chip and a CSP LED chip. The low-beam lamp bead is installed on the upper installation face. The high-beam lamp bead at least comprises a commonly-packaged LED chip and a CSP LED chip. The high-beam lamp bead is installed on the lower installation face. The light barrier is arranged on the side, close to the lens, of the installation plate and provided with an arc opening, and the center of the side edge of the opening is located at the focus of the lens. The lamp beads with the commonly-packaged LED chips and the CSP LED chips are adopted as light sources, and the requirement of national standards for automotive headlamp high-low-beam distribution can be met.

The invention relates to the technical field of heat dissipation, and discloses a heat dissipation device of a sealed case and the sealed case. The heat dissipation device, which is used to dissipatethe heat of heating electronic components installed in the case, includes an internal heat transfer system and an external heat transfer system. The internal heat transfer system is located in the sealed case and is in butt joint with the heating electronic components, and the heat generated by the heating electronic components can be transferred to the internal heat transfer system. The externalheat transfer system includes a blowing part and heat dissipation cover plates. The heat dissipation cover plates are all made of vapor chambers, and the blowing part is arranged on the inner side ofthe heat dissipation cover plates. The external heat transfer system is used to transfer the heat outside a sealed area to the outside air. The heat dissipation cover plates are connected with one another, can transfer heat to one another and are used to transfer heat to the outside air. The heat dissipation device of the sealed case in the invention has high heat dissipation efficiency, can reduce the internal temperature of the sealed case, improves the performance of the sealed case and increases the optional selectivity of the electronic components in the case.

The invention relates to a sprue spreader spiral sufficient cooling structure for a die-casting die. The structure comprises a sprue spreader, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are transversely arranged inside the sprue spreader; a cooling water well is formed at the middle portion of the sprue spreader vertically; a base is installed in the cooling water well; a groove is formed in the middle portion of the base and communicated with the water outlet pipe; a spiral tower is arranged at the upper end of the base; a spiral and upward water tank is formed in the side wall of the spiral tower; a gap is arranged between the upper end of the spiral tower and the cooling water well; the lower end of the water tank is connected with the water inlet pipe; the upper end of the water tank is communicated with the gap; a through hole is vertically formed in the spiral tower and the base; the upper end of the through hole is communicated with the gap; and the lower end of the through hole is communicated with the groove. According to the sprue spreader spiral sufficient cooling structure, the spiral cooling structure is adopted; the superficial area for cooling is increased; and due to the spiral cooling structure, the whole cooling process is full and uniform, and the efficiency of die-casting production is effectively improved.

The invention discloses an LED light source module used for an outdoor lamp. The LED light source module comprises a lens, a sealing ring, a light source module, a radiator, a waterproof connector and an electrical connecting wire. The lower end of the light source module is connected with the radiator, the upper end of the light source module is connected with the lens, a groove is formed in the edge of the lens, the sealing ring is arranged in the groove, not less than one cooling fin is arranged at the bottom of the radiator and connected with the waterproof connector and the electrical connecting wire, and the electrical connecting wire penetrates through the waterproof connector to be connected with the light source module. By the adoption of the LED light source module used for the outdoor lamp, the heat radiation superficial area is increased by increasing the number of the cooling fins, so that heat generated when LED lamp beads work is quickly radiated to air, and luminous decay is effectively reduced; the sealing ring is arranged in the groove, waterproofness can be effectively achieved, good heat radiation, protection and light distribution can be integrated, the assembling process is simple, and the LED light source module is suitable for large-batch production.