20results about How to "Avoid heat conduction" patented technology

The invention discloses an ultra-high molecular weight polyethylene composite diaphragm for a high-performance lithium battery, and relates to the technical field of polyethylene composite diaphragms.The ultra-high molecular weight polyethylene composite diaphragm comprises a polymer diaphragm and first pores, and the polymer diaphragm comprises a coating, an antibacterial layer, a first microporous layer, a second microporous layer, a functional layer, a reinforcing layer and a polyethylene base film. According to the ultra-high molecular weight polyethylene composite diaphragm for the high-performance lithium battery, heat conduction is prevented through the functional layer, a safe buffer area is formed, further diffusion of heat or current is prevented, the reinforcing layer has good strength and toughness, and the polyethylene diaphragm is prevented from being broken when the lithium battery is overcharged or short-circuited; a multi-layer composite structure is formed through the arrangement of the first microporous layer, the second microporous layer, the second pores and the first pores, the distribution and flowing of an electrolyte can be improved, meanwhile, the antibacterial layer can effectively prevent impurities, microorganisms or other corrosive substances in the electrolyte from damaging the polyethylene diaphragm, and the service life of the polyethylene diaphragm is prolonged. And the overall performance of the polyethylene diaphragm for the lithium battery is improved.

A smart window coupled with evaporative cooling and multi-level light regulation and a preparation method thereof, the smart window comprising a double-layer glass with a sealed interlayer space, at least one glass surface of the double-layer glass being coated with a thermochromic gel coating located in the sealed interlayer space, and the thickness of the sealed interlayer space being greater than the thickness of the thermochromic gel coating; the thermochromic gel coating being composed of sodium carboxymethyl cellulose, N Isopropyl acrylamide, a crosslinking agent, a photoinitiator and water are mixed and photo-crosslinked and polymerized at a reaction temperature of 0-10°C and under ultraviolet light irradiation to form. The smart window of the present invention has a closed interlayer space with low thermal conductivity, so that: the heat conduction resistance between the gel and the external environment is enhanced; a space for the evaporation of thermochromic gel water is provided; and a self-circulating system of water evaporation and absorption is established through the integration of the cavity and the gel layer.

This application discloses a heat-insulating and high-temperature resistant PPR composite pipe and its preparation method. The PPR composite pipe includes an inner layer, a middle layer, and an outer layer. The inner layer, by weight, includes the following components: 80-90 parts of PP-RCT, 1-3 parts of boron-nitrogen co-doped graphene aerogel, 0.5-1.5 parts of antioxidant, 3-8 parts of boron nitride, 1-3 parts of polyphthalamide, and 0.5-2 parts of dispersant. The middle layer includes PP-RCT, chopped glass fiber, maleic anhydride-grafted polypropylene, and ethylene-vinyl alcohol copolymer. The outer layer includes PP-RCT and an ultraviolet absorber. This PPR composite pipe has excellent heat insulation and high-temperature resistance properties.

The utility model provides a kind of aerogel infusion glass fibre thermal insulation decorative board assembly, it includes infusion thermal insulation core layer, inner side support plate layer, outer side support plate layer, cover decorative surface shell layer and plug-in positioning end, and the infusion thermal insulation core layer of the thermal insulation decorative board assembly is formed by infusion of aerogel in glass fibre felt body, aerogel has very low thermal conductivity, and microstructure is composed of nanometer scale pore, can effectively prevent heat conduction, realize good heat insulation effect, provide efficient thermal insulation performance for building, by setting inner side support plate layer and outer side support plate layer, the inner and outer sides of infusion thermal insulation core layer are supported and strengthened respectively, the structural stability of the whole thermal insulation decorative board assembly is enhanced, the setting of plug-in positioning end makes that thermal insulation decorative board assembly can accurate positioning, and with wall body joint, adjacent thermal insulation decorative board assembly can also be sequentially spliced, improve construction efficiency and installation quality.

This application discloses a combined polyether, a polyurethane composition, a polyurethane foam, and a refrigeration device. The combined polyether comprises a polyether polyol and a filler, wherein the filler comprises an epoxy-based cage-like polysilsesquioxane; wherein at least one organic side chain attached to the silicon atom of the epoxy-based cage-like polysilsesquioxane contains an epoxy group, and at least one epoxy group is located at the end of the organic side chain. The combined polyether provided in this application, by adding an epoxy-based cage-like polysilsesquioxane as a filler, achieves molecular-level dispersion by forming covalent bonds with the hydroxyl groups of the polyether polyol and the -NCO groups of the isocyanate, due to the epoxy active groups contained in this filler. This prevents the thermally conductive filler from agglomerating and migrating. Furthermore, the cage-like structure of the epoxy-based cage-like polysilsesquioxane can effectively capture gas molecules inside the polyurethane foam, inhibiting gas heat conduction and significantly reducing the thermal conductivity of the polyurethane foam at low temperatures.

The utility model relates to door lock cylinder technical field especially, it is a kind of door lock cylinder, solve the problem that multiple keys need additional space to store in prior art, need to replace lock to prevent stranger to open lock after losing key.A kind of door lock cylinder, including door panel, the surface of door panel is equipped with lock cylinder by mounting mechanism, the surface of lock cylinder is equipped with accommodating groove, the inside of accommodating groove is slidably connected with several separate rings, the inside of separate ring is equipped with locking mechanism, the top of lock cylinder is fixedly connected with two sliding blocks, one end of lock cylinder is rotatably connected with ring, the other end of lock cylinder is rotatably connected with bottom ring, the surface of ring is equipped with key.The utility model can open multiple door locks using a key, save the space where key is placed, and when key is lost, the position of separate ring in lock cylinder can be changed to make previous key unable to open new door, additional door lock is not needed, prevent lock cylinder internal high temperature deformation to cause door unable to open.

The application discloses a heat dissipation structure and an oxygen production equipment. The heat dissipation structure comprises a shell and an air inlet assembly. The shell is internally provided with a first accommodating space and a second accommodating space which are connected in communication. The shell is provided with an air inlet and a first air outlet. The air inlet is in communication with the first accommodating space, and the first air outlet is in communication with the second accommodating space. The air inlet assembly is arranged on the shell and is in communication with the air inlet. The first accommodating space is used for mounting a first heating device, and the second accommodating space is used for mounting a second heating device. The heat conduction between the first heating device and the second heating device can be avoided, and the heat accumulation can be reduced. The first heating device and the second heating device can be simultaneously cooled, multiple heat dissipation structures do not need to be arranged, the volume of the whole machine is reduced, the gas flow path is prolonged, the heat dissipation effect is improved, and the noise can be reduced.

The utility model relates to medical detection device technical field especially for a kind of trace PCR reaction auxiliary device, including tapered tube core, baffle, connecting rod, ring stand, threaded connection seat, screw rod structure, lower pressing part, fixed plate, resistance pole and PCR reaction tube;The utility model is used in cooperation with PCR reaction tube, distribute liquid in PCR reaction system in the vicinity of pipe wall, increase the conduction efficiency with PCR instrument heat module, promote reaction speed, avoid the process of liquid internal heat conduction simultaneously, improve the uniformity of reaction system, improve PCR reaction efficiency, and the volume of overall reaction system can be reduced to 1-5 microliters from 20-50 microliters, greatly save the dosage of reaction reagent and the requirement to sample amount, and the device can be adapted to the general ordinary PCR reaction tube in market, need not add new instrument and consumables when using the device, and additional cost will not be increased.

The invention discloses a measuring device and method for regulating and controlling the growth direction of metal molten drops under an inclined surface. The measuring device comprises a molten drop generating device, a substrate temperature regulating and controlling device, a substrate inclination adjusting device, a high-speed camera, a three-dimensional motion platform, a high-speed camera, an infrared point temperature instrument, a thermocouple temperature measuring instrument, an information acquisition system and the like. An inclined substrate platform with a variable temperature field is made through a substrate inclination adjusting device and a substrate temperature regulating and controlling device, molten metal drops are dropped on the inclined substrate platform with the variable temperature field, and monitoring systems such as a high-speed camera and a temperature measuring device are adopted. According to the method, the forming and temperature detection and feedback of the metal molten drop solidification process are realized, the change of the molten drop solidification effect under different parameters is obtained according to an information acquisition system, the morphology change of the molten drop under different temperature fields and different gradients is analyzed, and a measurement method for regulating and controlling the growth direction of the metal molten drop under the inclined surface is established. Therefore, the growth direction of the metal molten drops on the inclined surface can be accurately regulated and controlled.

The present application relates to a kind of wide temperature range temperature parameter black box tester, belong to industrial measurement and control technical field.The multistage temperature tester protection structure is used, from outside to inside in turn includes fiber heat insulation layer, nano micropore heat insulation layer, phase change heat insulation layer, inner layer high reflection heat insulation layer and vacuum heat insulation layer;Vacuum heat insulation layer is vacuum cavity, and the outer side wall surface of which is equipped with heating sheet array and closed loop feedback control system, for active heat compensation under low temperature environment;Data instant transmission system uses high-temperature-resistant antenna to realize wireless data transmission and time synchronization;Damping and sealing integrated system includes hierarchical damping damping structure and sealing gasket structure.The present application realizes stable, accurate temperature measurement in-190 ℃ to 1300 ℃ wide temperature range, has real-time data transmission, anti-vibration and sealing protection ability, significantly improves the reliability and measurement accuracy of equipment in harsh environment.

The utility model relates to a box body heat insulation structure of a heat preservation box, which comprises a shell, an inner container, a polyurethane foaming layer positioned between the shell and the inner container, and two layers of vacuum heat insulation plates arranged between the inner container and the polyurethane foaming layer from inside to outside, each layer of vacuum insulated panels comprises vacuum insulated panels located on the left side and the right side and vacuum insulated panels located on the upper side and the lower side, in each layer of vacuum insulated panels, the vacuum insulated panels on the left side and the right side are longitudinally arranged in a staggered mode, and the vacuum insulated panels on the upper side and the lower side are transversely arranged in a staggered mode; the upper surface of the upper vacuum heat insulation plate in the upper and lower vacuum heat insulation plates is flush with the upper end surface of one of the left and right vacuum heat insulation plates, and the lower surface of the lower vacuum heat insulation plate in the upper and lower vacuum heat insulation plates is flush with the lower end surface of the other of the left and right vacuum heat insulation plates. According to the utility model, the heat preservation and insulation performance is improved, and the heat conduction is reduced by prolonging the path of the splicing gap between the vacuum insulation plates.

The utility model relates to an automobile fuel tank heat insulation component and an automobile, the automobile fuel tank heat insulation component comprises a heat insulation plate of a semi-surrounding structure, the heat insulation plate covers the side of a fuel tank in a buckled mode, and the fuel tank is in clearance fit with the heat insulation plate; reinforcing ribs are arranged on the heat insulation plate, and the outline of the reinforcing ribs is matched with the outline shape of stiffening ribs on the oil tank. Through the arrangement of the heat insulation plate of the semi-surrounding structure, the heat insulation plate covers the side of the oil tank in a buckled mode, the good heat insulation effect can be achieved, and a channel for radiating heat of the exhaust pipe to dissipate towards the side of the oil tank is blocked. The oil tank is in clearance fit with the heat insulation plate, so that the heat dissipation effect of the heat insulation plate is improved, and the requirement for heat insulation protection of the oil tank can be met. The structural strength of the heat insulation plate is enhanced, meanwhile, the combination degree between the heat insulation plate and the oil tank is enhanced, it can be ensured that the heat insulation plate conducts effective heat insulation protection on the oil tank, and the good heat insulation effect is achieved.

The utility model relates to the technical field of composite films, in particular to a micro-foaming flexible package composite film which comprises an outer layer film which is arranged on the outer surface, is in contact with the external environment and is resistant to abrasion, a middle layer film which is fixed on the outer layer film and is used for isolating gas, moisture and light, and an inner layer film which is in contact with package contents, adsorbs gas through a porous structure and insulates heat. The porous structure comprises an open pore structure for adsorbing gas and a closed pore structure for heat insulation and heat preservation, and the open pore structure and the closed pore structure are in gradient change; the utility model has the beneficial effects that: at the opening part of the foaming PE, foam holes are communicated with one another, and gas can be diffused through channels between hole walls, so that the internal air pressure of the package is adjusted, and the risk of bag expansion is reduced; the foam holes in the closed hole structure are mutually closed, heat conduction can be effectively blocked, heat insulation and heat preservation effects are provided, meanwhile, the impact strength of the material can be improved through the foam hole structure, and the material has the buffering performance in the transportation process.

The main object of the present disclosure is to provide a battery module capable of inhibiting heat conduction between battery cells at the time of heat generation. In the present disclosure, the above object is achieved by providing a battery module having a plurality of battery cells arranged in a thickness direction, the battery module having an elastic member between adjacent battery cells, the elastic member being provided with a resin aggregate having thermal expansibility, the resin aggregate being arranged so as to include the center of the battery cell when viewed in the thickness direction, the resin aggregate having an expansion start temperature of 80°C or higher, and the resin aggregate having a thermal conductivity of 0.5 W / m·K or lower after expansion.

The invention discloses a preparation method of a heat insulation layer for heat insulation of a display module lamp drive, a heat insulation PCB substrate and a heat insulation COB module, and belongs to the technical field of display module heat insulation. Gamma-aminopropyltriethoxysilane is used as a coupling agent, fumed silica is subjected to ultrasonic dispersion treatment in an ethanol solution of the gamma-aminopropyltriethoxysilane, the pretreated fumed silica is mixed with a binder and an additive according to a certain proportion to form a heat insulation material, and then a heat insulation layer is formed on the surface of a base plate; the heat insulation PCB substrate and the heat insulation COB module are provided with the heat insulation layer; by optimizing the preparation process of the heat insulation layer and the combination mode of the heat insulation layer and the display module, high-precision installation and a good sealing effect of the heat insulation layer are achieved, and the heat insulation effect is further enhanced.

The application discloses a rotary joint for a calcined ore heat exchanger and a calcined ore waste heat utilization system, and belongs to the technical field of waste heat recovery equipment. The rotary joint comprises a water inlet terminal, first and second connecting parts arranged on the two sides of the water inlet terminal, a water inlet sleeve arranged in the first connecting part, a water distribution part connected with the water inlet sleeve, a water outlet terminal with a water outlet, a water outlet pipe sequentially penetrating through the water distribution part, the water inlet sleeve and the central passage of the water inlet terminal, and a heat insulation sleeve arranged outside the water outlet pipe. A heat insulation cavity is formed between the heat insulation sleeve and the water outlet pipe, and the heat insulation cavity is communicated with the inner cavity of the water distribution part to introduce cooling water. The application sets the heat insulation sleeve outside the water outlet pipe and introduces cooling water for forced cooling, effectively blocks the heat conduction of the high-temperature return water pipe wall to the bearing and the sealing element, avoids the influence of the water inlet and outlet heat exchange on the cooling effect, prolongs the service life of the rotary joint, and guarantees the calcined ore cooling efficiency and the waste heat recovery effect.

Provided is a reflector unit capable of sufficiently suppressing heat conduction to a chamber and suppressing occurrence of stress, and a film forming apparatus. The reflector unit includes: a first reflector member in a cylindrical shape, provided with a first engaging portion for being supported by a film forming chamber on an outer peripheral side, and provided with a first mounting portion on an inner peripheral side; and a second reflector member in a cylindrical shape, disposed inside the first reflector member, provided with a second engaging portion for being engaged on the first mounting portion and supported by the first reflector member on an outer peripheral side.

The utility model belongs to battery technical field discloses a kind of battery box, battery pack and electric device, the battery box includes box body and first cold plate, first cold plate is along transverse arrangement and box body is divided into upper battery cavity and lower battery cavity, upper battery cavity and lower battery cavity all have multiple battery group placement site;Among them, reinforcing beam is arranged in lower battery cavity, and the upper end surface of reinforcing beam and the lower surface of first cold plate have interval. Through the technical scheme provided in the application, the heat exchange problem between the upper battery cavity and the lower battery cavity in the related art can be at least solved.

The invention discloses an anti-corrosion glass fiber reinforced plastic gas pipeline and a preparation method thereof, and relates to the technical field of gas pipelines, the anti-corrosion glass fiber reinforced plastic gas pipeline comprises a straight pipe main body, sealing flange modules are arranged at the two ends of the straight pipe main body, a corner joint module is detachably installed on the straight pipe main body through the sealing flange modules, and an anti-freezing module is further arranged in the corner joint module; each of the straight pipe main body and the bent pipe main body is sequentially provided with a lining anti-corrosion layer, a steel inner core pipe, a glass fiber reinforced plastic reinforcing layer and an outer protective layer from inside to outside, the glass fiber reinforced plastic reinforcing layers are made of glass fiber reinforced plastic materials, and the outer sides of the straight pipe main body and the bent pipe main body are coated with the glass fiber reinforced plastic reinforcing layers through a cross winding process and a thermocuring process. The four-layer composite structure of the lining anti-corrosion layer, the steel inner core pipe, the glass fiber reinforced plastic reinforcing layer and the outer protective layer is adopted for synergistic effect, the glass fiber reinforced plastic reinforcing layer wrapped through the cross winding and thermocuring technology is adopted for improving the structural strength and the anti-corrosion capacity, and compared with a traditional single metal pipeline, metal corrosion and material aging are effectively prevented.