12results about How to "Extended heat conduction path" patented technology

The application discloses a preparation method of anisotropic glass fiber aerogel, which comprises the following steps: preparing a glass fiber dispersion solution; preparing an aluminum dihydrogen phosphate solution; preparing a polyvinyl alcohol solution; uniformly mixing the three solutions, pouring into a customized mold, freezing until complete solidification, and then performing freeze drying to obtain the glass fiber aerogel. Due to the influence of multiple temperature gradients on the aerogel, ice crystals grow vertically along the temperature gradient to form lamellas, and different cold surfaces interact to cause them to grow along the radial plane to the center of the square mold, finally forming an array radiation structure composed of four cones. The glass fiber aerogel prepared through the synergistic cooperation of the freeze casting technology and the aluminum dihydrogen phosphate has anisotropy and highly ordered lamellas, and therefore exhibits good low thermal conductivity.

The utility model relates to the technical field of heating plate, especially infrared heating plate with detachable lamp pearl, it includes: the heat dissipation base plate and a plurality of lamp pearl module, the heat dissipation base plate inside is embedded with the power bus, and the corresponding lamp pearl module is opened with a plurality of installation stations for installing lamp pearl module, every installation station all is provided with the connecting terminal, and every connecting terminal all is electrically connected with the power bus, lamp pearl module includes module shell, infrared luminophore and connecting interface, infrared luminophore installs in module shell inside, and connecting interface sets up in module shell back and is matched with the connecting terminal in installation station, detachable locking assembly is set up in module shell and is used for with lamp pearl module detachable fixed connection in installation station, makes module shell and the installation surface in installation station tight contact simultaneously. The present application has can solve the problem of lamp pearl quick replacement and maintenance, and improve the effect of heat dissipation and heat uniformity.

The utility model discloses an optical fiber exchange box heat radiation structure with air cooling diversion, which relates to the technical field of optical fiber communication box cooling, and comprises a heat radiation air cooling diversion assembly and a heat radiation fan which are arranged at one end of an optical fiber exchange box body, and the upper edge of the optical fiber exchange box body is provided with a plurality of fixing assemblies; the heat dissipation air-cooling diversion assembly comprises a plurality of heat dissipation fins and a plurality of diversion air-cooling plates, the end faces of the heat dissipation fins are of U-shaped structures, the plurality of heat dissipation fins are fixedly connected to one end of the optical fiber exchange box body, and the plurality of diversion air-cooling plates are symmetrically distributed between the output end of the heat dissipation fan and the plurality of heat dissipation fins; in the technical scheme provided by the utility model, through the synergistic effect of the U-shaped radiating fins and the flow guide air cooling plate, the surface area is increased, and the heat conduction path is optimized; the flow guide air cooling plates are symmetrically distributed between the cooling fan and the cooling fins, airflow disturbance is enhanced through surface through holes, and the heat exchange efficiency is improved.

The utility model relates to an electric cooker NTC and double fuse internal and external split type connection structure, which relates to the technical field of electronic component connection, and comprises an outer shell and an inner slide block, and the outer shell and the inner slide block are provided with the same connection mechanism; the connecting mechanism comprises a connecting part A and a connecting part B which are used for connecting the outer shell and the inner sliding block. According to the internal and external split type connecting structure of the NTC and the double fuses of the electric cooker, a connecting mechanism on the outer shell and the inner sliding block comprises a limiting block, an arc-shaped groove, a semi-ring groove, a ring piece and the like, enough creepage distance is provided, the phenomenon of electric leakage can be effectively prevented even in a high-humidity or polluted environment, and the service life of the electric cooker is prolonged. The insulation performance of the whole circuit system is improved, so that the insulation performance of the whole circuit is improved, stricter UL safety specification requirements can be met, and the problems of poor insulation performance and insufficient creepage distance of some left-right split structures in the market are solved.

The application relates to the technical field of heating equipment, and particularly discloses a thick-film heating assembly and a vehicle heater. The thick-film heating assembly comprises a heating core body, the heating core body has a first surface, a first side surface and a second side surface, the first side surface and the second side surface are connected to the two sides of the first surface, a plurality of flow channels are formed in the heating core body, the plurality of flow channels are arranged at intervals along a first direction, and the flow channels penetrate through the first side surface and the second side surface; a heating film is arranged on the first surface; a water inlet pipe is connected to the first side surface and communicates with the plurality of flow channels, and a water inlet cavity is formed in the water inlet pipe; a water outlet pipe is connected to the second side surface and communicates with the plurality of flow channels; and the minimum cross-sectional area of the water inlet cavity along a radial direction is greater than the maximum cross-sectional area of each flow channel along the first direction.

The utility model provides a kind of armoured tungsten-rhenium thermocouple, belong to temperature measurement technical field, this armoured tungsten-rhenium thermocouple, including armoured protection pipe, the tungsten-rhenium electrode being arranged in armoured protection pipe inside, insulation material being filled between armoured protection pipe and tungsten-rhenium electrode, terminal box and sealing assembly being arranged in armoured protection pipe one end, pass through double sealing structure, construct full-closed protection system, can effectively resist the invasion of high-temperature molten gas in metallurgical furnace, strong corrosive medium in chemical reaction kettle, make tungsten-rhenium electrode and alumina ceramic insulation layer exempt from corrosion, compared with traditional thermocouple service life improves 2-3 times.Simultaneously, spring-like elastic support piece and ceramic powder insulation layer form double anti-vibration structure.

The utility model belongs to the technical field of plate processing, and discloses a numerical control modeling cutting saw and a plate, which comprises a rack, a lifting cutting gantry assembly used for cutting inner core materials of the plate, a reciprocating walking platform assembly used for carrying the inner core materials of the plate, and a numerical control table used for controlling the lifting cutting gantry assembly and the reciprocating walking platform to cooperatively work, the lifting cutting gantry assembly is fixedly connected to the rack, the reciprocating walking platform assembly is erected at the bottom of the lifting cutting gantry assembly, and the numerical control table is arranged on the side of the rack. According to the numerical control modeling cutting saw, complex curve cutting is achieved through servo control and a multi-axis linkage system; the plate adopts an S-shaped wave splicing structure, so that the contact area is increased, the compressive strength is improved, the heat conductivity coefficient is reduced, and the plate has high strength and excellent heat preservation performance.

The utility model relates to an SOP32 plastic package structure, which comprises a slide island, a connecting rib and a plastic package body, a chip is arranged on the slide island, two bending sections are symmetrically arranged at the left end and the right end of the slide island, and when the slide island, outer pins, the chip and the connecting rib are placed in a mold to be filled with plastic package materials for plastic package, the plastic package body is plastically packaged on the outer sides of the slide island, the connecting rib and part of the outer pins. The connecting rib comprises a bending section and a stabilizing section, the stabilizing section is arranged at one end, far away from the slide island, of the bending section, the lower surface of the stabilizing section is of a wave-shaped structure extending along the length direction of the slide island when the plastic packaging material is filled and closed, and the plastic packaging material wraps the connecting rib along the wave-shaped stabilizing section, so that the contact area between the connecting rib and the plastic packaging body is increased; the bonding strength of the chip carrying island and the plastic package body is improved, and the service life of the chip plastic package body is prolonged.

The utility model discloses a kind of glass electric melting furnace composite heat preservation structures, including glass electric melting furnace main body, the glass electric melting furnace main body is sequentially arranged from inside to outside working layer, transition layer, heat insulation layer and outer protective layer composition;The working layer is made of electric melting zirconia corundum brick, the transition layer is made of light mullite brick, the heat insulation layer is made of microporous heat insulation plate and ceramic fiber module, the ceramic fiber module covers in microporous heat insulation plate outside, the outer protective layer is made of galvanized steel sheet, by galvanized steel sheet play to the effect of moisture-proof and corrosion-proof, the ceramic fiber module is fixed in the inner side of outer protective layer by stainless steel anchor, air passage is arranged between the outer protective layer and heat insulation layer.The utility model effectively reduces the temperature of glass electric melting furnace main body surface, and reduces heat loss, realizes the integrated effect of heat insulation, heat preservation and sealing.

This invention provides a high-efficiency heat dissipation power packaging structure with a pressure-resistant insulating film, belonging to the field of semiconductor technology. The high-efficiency heat dissipation power packaging structure with a pressure-resistant insulating film includes a thermally conductive carrier plate and a molding compound, with a chip disposed on the thermally conductive carrier plate. An insulating film formed by sputtering is disposed on the side of the thermally conductive carrier plate opposite to the chip, and the molding compound covers the periphery of the thermally conductive carrier plate. This structure can reduce the manufacturing difficulty of power components and improve the heat dissipation efficiency of power components by utilizing the sputtered insulating film; furthermore, the insulating film allows for a smaller and thinner overall packaging structure.

The invention relates to the technical field of solar cells, and particularly discloses a high-efficiency crystalline silicon solar cell with a composite back reflection structure and a preparation method thereof, and the high-efficiency crystalline silicon solar cell comprises a silicon substrate, and a passivation layer, a back reflection dielectric layer and a metal electrode which are sequentially formed on the back surface of the silicon substrate. Wherein the metal electrode is of a composite electrode structure and comprises a basic conductive grid line and a high-reflection covering layer. According to the invention, a base metal slurry printing and backflow or electroplating sputtering or evaporation step is added after the existing standard process, and the step is mature in process and universal in equipment. The base metal is cheap and non-toxic metal, the increased material cost is extremely low, but the brought optical, electrical and reliable benefits are remarkable, and the cost performance is high.

The utility model discloses a kind of semiconductor discrete devices, it is related to semiconductor discrete device technical field, including device substrate, buffer layer, device source, device drain, channel assembly, gate layer, ohmic electrode layer, electrode cap and pin assembly, device substrate adopts high-purity single crystal silicon, top epitaxial gallium nitride film, the high and low doping silicon carbide layer of combination channel assembly, heat generation is controlled from bottom layer, electrode cap adopts copper material, pin assembly is mechanically interlocked with electrode cap by fitting structure, cooperate installation slot opening heat-conducting material, connecting pin recess filling solder and air cavity design, shorten heat conduction path, strengthen heat conduction and radiation, the device is synergized through multilayer heat conduction path and multiple heat dissipation mode, effectively improve overall heat dissipation performance, avoid the problem such as the increase of on-resistance caused by excessively high temperature, reliability decline, ensure that device maintains good performance in work.