223results about How to "Efficient conduction" patented technology

The invention belongs to the technical field of battery thermal management, and discloses a battery pack and a phase change material coupling liquid cooling composite thermal management system.The battery pack comprises a plurality of battery structures, each battery structure comprises a lithium battery, a fin structure, a phase change material filling area and a liquid cooling plate, and the fin structure is arranged on the periphery of the lithium battery; the liquid cooling plate is arranged on the periphery of the fin structure, a phase-change material filling area is formed between the liquid cooling plate and the fin structure, and the phase-change material filling area is filled with a phase-change material for absorbing redundant heat and generating phase change, so that the temperature fluctuation of the battery is reduced. The lithium bromide heat pump and the direct-current power supply are combined, and accurate adjustment of the temperature of the battery pack is achieved through efficient heat exchange and intelligent control. The system can be rapidly switched between a cooling mode and a heating mode, and it is ensured that the battery is always kept within the optimal temperature range in different working environments.

The invention discloses a high-strength cold-resistant fiber and a preparation method thereof, and relates to the field of fibers. When the high-strength cold-resistant fiber is prepared, diphenylphosphine sequentially reacts with triallylmethoxysilane and nickel bromide, and a silicon-phosphorus-nickel complex is prepared; the preparation method comprises the following steps: reacting an alkene mixed solution, azodiisobutyronitrile, a hydrochloric acid solution and a silicon mixed solution, diluting with 4-methyl cyclohexanone, and reacting with zinc bromide to prepare a pre-modified polyacrylate emulsion; the preparation method comprises the following steps: carrying out a batch reaction on graphene oxide and 1-aminopyrrole to prepare modified graphene oxide; the modified graphene oxide, 2, 5-dihydroxy terephthalaldehyde and the pre-modified polyacrylate emulsion react and then electrostatic spinning is conducted, and the high-strength cold-resistant fiber is prepared. The high-strength cold-resistant fiber prepared by the invention has antibacterial, anti-aging, flame-retardant and antistatic capabilities.

The invention relates to the technical field of organic silicon pouring sealants, and discloses a high-thermal-conductivity low-viscosity organic silicon pouring sealant and a preparation method thereof, and the sealant comprises the following raw materials by weight: 80-90 parts of alpha, omega-dihydroxy polydiethylsiloxane; 4 to 8 parts of polyphenyl siloxane; 100 to 120 parts of spherical aluminum nitride; 3 to 7 parts of epoxy butyl oleate; 0.8 to 1.2 parts of organic bentonite; 0.5 to 0.9 part of a titanate coupling agent; 0.8 to 0.9 part of dibutyltin dibutyrate; 0.15 to 0.20 part of dibutyltin oxide; 0.08 to 0.15 part of phosphotriester; the titanate coupling agent, the tris (2, 3-dibromopropyl) phosphate and the graphite powder are introduced into the raw materials, the graphite powder is subjected to surface modification treatment in the pretreatment stage, and the modified graphite powder is more firmly combined with a sealing compound matrix, so that the sealing compound can still keep stable performance at an extreme temperature; by integrating the respective characteristics of the raw materials, the sealing compound finished product disclosed by the invention has the advantage of high heat-conducting property while having low viscosity.

The invention discloses an efficient heat dissipation type crosslinked polyethylene insulated cable, which comprises a cable core, an inner protective layer, a metal shielding layer, an outer protective layer, a heat conduction filling layer and heat dissipation mechanisms, and is characterized in that two adjacent heat dissipation mechanisms are connected through a hose; the heat dissipation mechanism comprises a main guide pipe, a partition plate, an air inlet pipe, an air outlet pipe and a radiator. The main conduit is arranged in the inner protective layer; the partition plate divides the interior of the main guide pipe into a front cavity and a rear cavity. The air inlet pipe is sleeved with the front cavity of the main guide pipe. The air outlet pipe is sleeved with the rear cavity of the main guide pipe. The plurality of radiators are arranged between the cable cores at the periphery of the main conduit; the radiator comprises a main radiating plate, a front flow guide plate and a rear flow guide plate which are all of a hollow structure. According to the cross-linked polyethylene insulated cable, the heat dissipation mechanism is arranged in the cross-linked polyethylene insulated cable, heat is efficiently and rapidly conducted to the outer edge of the cable from the middle of the cable under the cooperation of wind, rapid heat dissipation is conducted through the heat dissipation face, far larger than the middle of the cable, of the main heat dissipation plate, the heat dissipation speed is high, and the heat dissipation efficiency is high.

The invention relates to the technical field of silica gel sheets, in particular to a high-strength wear-resistant heat-conducting composition and a preparation method and application of a silica gel sheet. The invention discloses a high-strength wear-resistant heat-conducting composition which comprises the following components in parts by weight: 1-5 parts of methyl vinyl silicone rubber; 15 to 20 parts of vinyl silicone oil; 2-10 parts of white carbon black; 0.5-1 part of a first coupling agent; 50-70 parts of a heat conducting filler; 0.1 to 0.2 part of a chain extender; 5-10 parts of a cross-linking agent; 0.01 to 0.02 part of a catalyst; and 0.01 to 0.05 part of a polymerization inhibitor. According to the silica gel sheet provided by the invention, the binding force between the filler and the silica gel matrix is enhanced through the high heat conduction characteristic of the heat conduction filler powder and the treatment of the coupling agent, so that the overall heat conduction performance of the material is improved. Meanwhile, by controlling the particle size and the shape of the filler and adopting methods such as ball milling treatment, the mechanical property of the material is ensured, and the stable performance can be kept in long-time use.

The utility model discloses a self-powered friction structure and an insole. The self-powered friction structure comprises a negative electrode structure which comprises a first negative electrode material layer, a conductive fabric layer and a second negative electrode material layer which are connected in sequence, and the conductive fabric layer is located between the first negative electrode material layer and the second negative electrode material layer; the positive electrode structure comprises a positive electrode material layer and a base layer which are connected with each other; the plurality of elastic columns are uniformly distributed and are connected with the second negative electrode material layer and the positive electrode material layer to form a hollow structure; the first negative electrode material layer and the second negative electrode material layer adopt an electric polarity material different from that of the positive electrode material layer; the negative electrode structure, the elastic column and the positive electrode structure are integrally formed. According to the self-powered friction structure and the insole, the self-powered friction structure is integrally formed, has the advantages of being high in durability and stable in voltage output, can be conveniently cut at will, and meets the requirement for large-scale production.

The invention particularly relates to a solar charging type dock and an unmanned ship, and relates to the technical field of unmanned ships, the solar charging type dock comprises an unmanned ship body and an upper bin body arranged on the upper side of the unmanned ship body in a communicating mode, a charging socket is installed on the rear side of the unmanned ship body, and inner slopes are obliquely arranged on the left side and the right side of the bottom of the unmanned ship body correspondingly; a plurality of clamping grooves are formed in the middle of the inner inclined face, the lifting movable plate can be arranged in the unmanned ship body in a suspended mode according to the magnetic principle that under the condition that a lower electromagnet in the unmanned ship body is powered on, the same poles of the lower electromagnet and an upper floating magnet repel each other, and a space frame on the lifting movable plate is used for installing electric appliance accessories of the unmanned ship. The rubber floating air bag is fixedly arranged on the periphery of the lifting movable plate, the buoyancy of the lifting movable plate can be improved, when the water level of water entering the unmanned ship body is high, the rubber floating air bag enables the lifting movable plate to float, and the water level of the water entering the unmanned ship body is high. Therefore, the use effect is improved.

The utility model provides a high-reliability SIC-MOSFET terminal structure, belonging to the technical field of semiconductor devices, the high-reliability SIC-MOSFET terminal structure comprises a source electrode and a drain electrode, the source electrode is the input end of an MOSFET and is used for current in a circuit to enter, and the drain electrode is the output end of the MOSFET and is used for exporting current; a groove and a grating are arranged between the source electrode and the drain electrode, the structure among the source electrode, the drain electrode, the groove and the grating is a FinFET structure, the source electrode and the drain electrode are fixedly connected through the middle groove and the grating, the groove is fixedly connected with the grating, the groove comprises a first groove and a second groove, and the first groove and the second groove are communicated with each other. The first groove is fixedly connected with the source electrode. The problem that an existing SIC-MOSFET0 is prone to being broken down under the conditions of high voltage and high current can be solved.

The utility model discloses a laser collimation module capable of expanding beams for multiple times. The laser collimation module comprises a laser collimation module body arranged on one side of a galvanometer adapter plate, a beam expanding structure arranged at one end of the laser collimation module body and a heat sink structure arranged outside the laser collimation module body. The horizontal projection cylinder is arranged between the fixed seat and the galvanometer adapter plate, the laser collimation cylinder is arranged on one side of the fixed seat, the fixed plate is arranged in the fixed seat, and the reflector is arranged in the fixed plate; the first lens barrel is arranged outside the laser collimation barrel, the second lens barrel is connected with the first lens barrel, and the third lens barrel is connected with the second lens barrel; a first glass lens is arranged in the first lens cone, a second glass lens is arranged in the second lens cone, and a third quartz lens is arranged in the third lens cone; the plurality of integrated assemblies are arranged outside the laser alignment module, and the plurality of heat sink assemblies are arranged inside the integrated assemblies. According to the utility model, the laser beam can be effectively expanded by multiple times, and the requirements of different application scenes on the size of the laser beam can be met.

The invention relates to the technical field of TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation, and discloses a TRT blade surface laser cladding anti-corrosion and wear-resistant coating preparation method which comprises the following steps: preparing a nickel-based alloy raw material, putting the nickel-based alloy raw material into a planetary ball mill to be subjected to ball milling treatment after being combined, and preparing a nickel-based alloy coating; the mixed powder is bonded on a steel base material base plate to form a TRT blade, the TRT blade is put into a drying oven to be dried, high-energy-density laser beams of laser cladding equipment are used for irradiating the powder coated on the surface of the TRT blade to enable the powder to be fused, then an anti-corrosion layer is formed, a metal ceramic gradient material is melted or softened, the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer, and the metal ceramic gradient material is sprayed to the surface of the anti-corrosion layer. Then the boron nitride coating and the anticorrosive layer are fused together through laser cladding equipment, a transition layer is formed, the boron nitride coating is prepared, the surface of the transition layer on the TRT blade is evenly coated with the boron nitride coating, the surface of the transition layer on the TRT blade is fused together through the laser cladding equipment, and a wear-resistant layer is formed; through the preparation method, the service life of the TRT blade is prolonged.

The invention relates to the field of intelligent identification, and provides an abnormal point intelligent identification method and system applied to communication mold welding, and the method comprises the steps: firstly obtaining welding temperature data, collecting hot spot distribution information, querying a temperature sequence, extracting a temperature peak point, and detecting an abnormal temperature region; secondly, carrying out curve fitting, trend identification and change rate calculation on the temperature change gradient of the abnormal area, carrying out heat transfer analysis based on the curve, determining a temperature control grade and marking a heat balance point, then determining a heat control channel and detecting a state, calculating the heat capacity of the channel to optimize a monitoring threshold value and calculating a threshold value deviation rate; and finally, generating an abnormal welding instruction based on the deviation rate, querying welding parameters, identifying welding factors and generating an abnormal monitoring detailed list. According to the method, the abnormal point identification effect under communication mold welding can be improved.

The invention discloses a light emitting device, a packaging method and an optical module. The light emitting device comprises a metal base, an insulating diversion layer, a pipe cap, a lens, a laser chip, a refrigerator assembly and an adapter assembly. The pipe cap is connected to the metal base in a covering mode to form a sealed cavity, and an insulating flow guide layer, a lens, a laser chip and a refrigerator assembly are arranged in the sealed cavity. The insulating diversion layer is connected between the metal base and the refrigerator assembly; a plurality of bismuth antimonide particles are sequentially connected to the upper surface of the insulating diversion layer; the cold surface substrate is connected to the upper surfaces of the bismuth antimonide particles; the upper surface of the cold face substrate is connected with a heat transfer conductive piece which is connected with the first substrate and the second substrate. The thermistor is arranged on the first substrate; the lens is arranged on the heat-transfer conductive part; the laser chip is arranged on the second substrate; the adapter assembly is connected to the outer side of the pipe cap. The heat dissipation efficiency is effectively improved, and the service life is prolonged.

The invention provides a solid-state electrolyte membrane and a preparation method thereof and a lithium ion battery, the solid-state electrolyte membrane comprises a first membrane layer and a second membrane layer which are laminated, the first membrane layer is made of a first polymer and a lithium salt; the material of the second film layer comprises an inorganic ceramic filler, a second polymer and cellulose; wherein the cellulose comprises one or more of ethyl cellulose and propyl cellulose; the first polymer and the second polymer are respectively and independently selected from one or more of PVDF (Polyvinylidene Fluoride) and PVDF-HFP (Polyvinylidene Fluoride-Hexafluoropropylene). The present application aims to provide a solid electrolyte membrane having high ionic conductivity.

According to the ultra-deep underground storage structure reasonable in design and the construction method of the ultra-deep underground storage structure, a series of problems of construction safety and feasibility, structural stress deformation, water resistance, moisture resistance, anti-floating stability and the like of the ultra-deep underground storage structure are solved. The primary lining of the upper structure is an open caisson; the primary lining of the lower structure is mainly composed of a vertical grouting steel pipe, a pre-stressed anchor cable, an occlusion waist beam system and a primary lining concrete layer; the upper end of the vertical grouting steel pipe extends into the blade foot gap, a cement layer is poured into the blade foot gap, and the cement layer and the reinforcing layer are connected into a whole; a concrete lining of the upper structure is fixed to the inner wall of the open caisson, and a waterproof layer is laid between the inner wall of the open caisson and the concrete lining. The concrete lining of the lower structure is fixed on the primary lining concrete layer, and a waterproof layer is laid between the primary lining concrete layer and the concrete lining; the upper end of the fore shaft ring beam is connected with the concrete lining of the upper structure, and the lower end is connected with the concrete lining of the lower structure; and a waterproof layer is laid between the open caisson and the locking mouth ring beam.

The utility model discloses an air-cooling heat dissipation device for an energy storage battery cluster of a battery chamber, and belongs to the technical field of heat dissipation of the battery chamber. A battery chamber energy storage battery cluster air cooling heat dissipation device comprises a battery box and further comprises a main induced draft fan fixedly connected to the battery box, a heat dissipation plate is fixedly connected in the battery box, a cavity is formed between the bottom of the heat dissipation plate and the battery box, and the air outlet end of the main induced draft fan is communicated with the cavity; the auxiliary induced draft fan is fixedly connected to the battery box, and the air outlet end of the auxiliary induced draft fan is communicated with the battery box; the auxiliary induced draft fan and the main induced draft fan are used in cooperation, heat generated above and below the batteries can be dissipated in time, hot air cannot be transmitted to the periphery of the upper-layer batteries after heat exchange of the bottom-layer batteries, then heat around the batteries can be dissipated in time, the batteries can be effectively prevented from being overheated, and the service life of the batteries is prolonged. The safety performance of the battery is ensured.

A switch case disclosed by the present invention comprises a case body mechanism, a modular mechanism and a heat dissipation mechanism, the heat dissipation mechanism is inserted into the case body mechanism, the modular mechanism is inserted into the case body mechanism, and the case body mechanism comprises a machine body unit and a cover plate unit. And the cover plate unit is in threaded connection with the top of the machine body unit. By adopting the modular design, when the network scale is expanded or new functions need to be added, only corresponding modules need to be added, and the whole case does not need to be replaced, so that the extension and upgrade cost is greatly reduced, the extension and upgrade time is greatly shortened, extension and upgrade are easy, and the heat dissipation efficiency is improved by optimizing the design of a heat dissipation system. According to the heat dissipation system, the operation temperature of the switch can be effectively reduced, so that the energy consumption of the heat dissipation fan is reduced, meanwhile, the optimal design of the heat dissipation system also can avoid potential safety hazards caused by overheating, and the side surface is matched with the top heat dissipation design, so that air flow can be formed, and heat can be rapidly extracted.

The invention provides a transverse excitation bulk acoustic wave resonator for improving power tolerance and application thereof, the transverse excitation bulk acoustic wave resonator comprises supporting areas, resonance areas and anchors, the supporting areas are located at the two ends of the transverse excitation bulk acoustic wave resonator, the resonance areas are located between the supporting areas at the two ends, and the anchors are located at the two ends of the transverse excitation bulk acoustic wave resonator. The resonance area is connected with the supporting areas at the two ends through anchors; a cavity is further formed between the supporting areas at the two ends, and the cavity is located below the resonance area and the anchor; the resonance area comprises a composite film and at least two interdigital metal electrodes on the surface of the composite film, the composite film comprises a first heat conduction material layer and a first piezoelectric material layer which are stacked, and the interdigital metal electrodes are arranged on the surface of the first piezoelectric material layer. The transverse excitation bulk acoustic wave resonator has the characteristic of high power resistance, and still has the excellent acoustic performance of the resonator.

The invention relates to the technical field of heat-conducting insulating materials, and discloses a segmented curing heat-conducting bonding insulating sheet and a preparation method thereof. An organosilicon addition system and a peroxide curing system exist in a system of the segmented curing heat-conducting bonding insulating sheet at the same time, and the segmented curing heat-conducting bonding insulating sheet comprises the following components in parts by weight: 5-10 parts of vinyl MQ silicon resin, 0.1-1.0 part of a cross-linking agent, 0.1-0.5 part of a platinum catalyst, 0.01-0.1 part of an inhibitor, 5-10 parts of vinyl raw rubber, 0.25-1 part of a peroxide curing agent, 0.05-0.1 part of an accelerant and 50-85 parts of heat-conducting filler. The segmented curing heat-conducting bonding insulation sheet has a high heat conductivity coefficient and can effectively conduct heat of an electronic element, reduce the working temperature and improve the performance and reliability of equipment; high bonding strength can prevent components from falling off and ensure the stability of equipment; the preparation method is simple, does not need complex equipment and process, and is easy for industrial production.

The invention discloses a sodium ion battery positive electrode material precursor and a preparation method and application thereof, and belongs to the technical field of sodium batteries. The chemical composition of the precursor is HxMyLz (PO4) 4, M is Fe and / or Mn, and L is one or more of V, Ti, Mg, Cr and Zr, 2lt; xlt; 2.6 < = y < = 3, and 0 < = z < = 0.4. The preparation method comprises the following steps: adding an M source, an L source and a phosphorus source into water, uniformly mixing, adding acid to adjust the pH value to 0.5-2, heating to 80-250 DEG C, reacting for 4-48 hours, collecting a precipitate, and drying to obtain the positive electrode material precursor. The preparation method comprises the following steps: uniformly mixing M and P at an element atom level in advance through a liquid phase reaction to form a standardized precursor raw material, then mixing a sodium source and a carbon source, and further sintering to prepare the polyanionic sodium ion battery positive electrode material Na4MyLz (PO4) 2P2O7 / C. According to the preparation method, efficient conduction of Na ions in the crystal can be promoted, the phase purity and the high rate performance of the material can be improved, the production process is simplified, and the production cost is saved.

The invention provides an anti-collision cross beam assembly of a vehicle forecabin, a vehicle body assembly of a vehicle and the vehicle. The anti-collision cross beam assembly of the vehicle forecabin comprises a first anti-collision cross beam, a first energy absorption box, a second anti-collision cross beam and a second energy absorption box. The first anti-collision cross beam is located above the second anti-collision cross beam in the height direction of the vehicle, the first anti-collision cross beam is located on the front side of a vehicle body longitudinal beam of the vehicle in the length direction of the vehicle, and the first energy absorption box is used for being connected between the first anti-collision cross beam and the vehicle body longitudinal beam; the second anti-collision beam and the second energy absorption box are both located on the front side of an auxiliary frame assembly of the vehicle in the length direction of the vehicle, the second anti-collision beam and the second energy absorption box are arranged in a staggered mode in the height direction of the vehicle, and the second anti-collision beam is connected with one end of the second energy absorption box through an anti-collision supporting piece. And the other end of the second energy absorption box is used for being connected with an auxiliary frame assembly, so that the collision force absorption effect of the anti-collision beam assembly is improved.

The invention discloses a preparation method of an LED full-color display array structure, and the method comprises the steps: constructing a blue light sub-pixel array through growing a blue light LED epitaxial layer on a sapphire substrate; growing a green light LED epitaxial layer on the sapphire substrate, and constructing a green light sub-pixel array; growing a red light LED array on the GaAs substrate, and arranging a plurality of composite buffer layers between the red light LED array and the GaAs substrate; transferring the red light LED array to a sapphire substrate, and cutting the red light LED array into independent sub-pixel arrays; gluing the edge of the three-color sub-pixel array, sequentially stacking the three-color sub-pixel array, and pressurizing and curing the three-color sub-pixel array; the three-color LED is driven to emit light through an electrode input signal, full-color display is mixed from the back face, and preparation of the full-color display array structure is achieved. According to the method, heat can be effectively conducted, heat generated by the LED chip is rapidly dissipated, the temperature of the chip is reduced, and the stability and the service life of a device are improved.

The utility model relates to the technical field of automobile connector fixing, and discloses an automobile connector fixing structure which comprises a connecting mechanism, a fixing mechanism and a main body mechanism, the connecting mechanism is located at the top end of the fixing mechanism, the fixing mechanism is located at the top end of the main body mechanism, and the connecting mechanism comprises a first connector. A second connector is connected to the inner wall of the first connector in a sleeved mode, a clamping groove is formed in the outer wall of the second connector, a clamping block is connected to the inner wall of the clamping groove in a clamped mode, and a spring is fixedly connected to the back face of the clamping block. The spring is arranged between the first connector and the clamping block, so that the clamping block can be controlled to contract by extruding the spring, and when the clamping block enters the bottom of the clamping groove, the spring provides support for the clamping block, so that the clamping block can be tightly matched with the clamping groove, and the first connector and the second connector can be stably connected; the connector is prevented from accidentally falling off, and the structural stability of the automobile connector at the connecting part is ensured.

The invention discloses an ultra-short radius flexible drilling tool, and relates to the technical field of flexible drilling tools. Comprising a flexible pipe body, a connector is fixedly installed at one end of the flexible pipe body, an adjusting assembly is arranged on the connector, and a plurality of drill bit blades are arranged on the adjusting assembly; the flexible pipe body comprises an outer pipe body, an inner pipe body and a buffer assembly, the inner pipe body is located in the outer pipe body, a liquid storage cavity is formed between the outer pipe body and the inner pipe body, the buffer assembly is arranged in the liquid storage cavity, and the adjusting assembly comprises an electric push rod fixedly installed on a connector. An output shaft is fixedly mounted at the output end of the electric push rod, and a mounting block is fixedly mounted at the end, away from the electric push rod, of the output shaft. Through cooperative use of the adjusting assembly and the buffering assembly, performance reduction caused by vibration or overheating of the drilling tool can be avoided, and the working efficiency and reliability of the drilling tool are greatly improved.

The utility model relates to the technical field of optical fiber coupling devices, and particularly discloses an optical fiber coupling device with high coupling efficiency, which comprises a shell, an optical fiber coupler main body is arranged in the shell through a connecting assembly, the optical fiber coupler main body comprises a protective shell, and an optical fiber is fixedly wrapped in the protective shell. Heat dissipation assemblies are arranged on the two sides of a coupling part of the optical fiber, each heat dissipation assembly comprises a surrounding piece, the optical fiber penetrates through the space between the two surrounding pieces, a plurality of fins are fixedly connected to the outer ends of the surrounding pieces at equal intervals, the outer ends of the fins extend out of the protection shell, the shell comprises two shell bodies arranged up and down, and the shell bodies are connected with the heat dissipation assemblies. Grooves are formed in the two sides of the shell, and openings are formed in the bottoms of the grooves. According to the utility model, the heat dissipation assembly is arranged, so that the situation that the coupling efficiency is reduced due to thermal expansion of the optical fiber coupler caused by over-high temperature can be prevented, and the high coupling efficiency of the optical fiber coupler after long-time use can be ensured.

The invention discloses a radiation evaporation synergetic cooling structure integrated Janus fiber membrane and a preparation method thereof, a PET fiber membrane with good mechanical strength, toughness resistance and other performances is selected as a substrate fiber membrane, CaHPO4 is loaded on the surface of the PET fiber membrane, the PET fiber membrane is modified, the hydrophilic performance, sunlight reflectivity and infrared thermal emissivity of the PET fiber membrane are enhanced, and the radiation evaporation synergetic cooling structure integrated Janus fiber membrane is prepared. And spraying octadecyl trichlorosilane on the PET fiber membrane loaded with CaHPO4 by adopting a spraying process, and depositing a netted hydrophobic coating inner layer and a netted water transmission channel which are uniformly and regularly arranged on a single side, thereby obtaining the structure integrated Janus fiber membrane. The structure-integrated Janus fiber membrane provided by the invention not only has the function of radiation cooling cooperating with evaporation cooling and the function of directional water transmission, the directional water transmission index R is as high as 991%, and the original excellent performance of the PET fiber membrane is reserved.

The invention discloses a control method, a control device and an air conditioner. The air conditioner comprises an air outlet panel, the air outlet panel comprises a front air outlet and a lower air outlet, the front air outlet is used for supplying air forwards and is provided with a front air outlet air deflector assembly, and the lower air outlet is opened downwards and is provided with a lower air outlet air deflector assembly; the front air outlet air deflector assembly and the lower air outlet air deflector assembly operate independently. The front air outlet air deflector assembly comprises an outer side air deflector assembly and an inner side air deflector assembly which operate independently; the control method comprises the steps that the outer side air guide plate assembly, the inner side air guide plate assembly and the lower air outlet air guide plate assembly are controlled, so that a multifunctional air supply mode is achieved through cooperation of the front air outlet and the lower air outlet. According to the scheme, the problem that a user feels cold in legs and feet due to the fact that downward air supply is difficult and particularly hot air conduction is difficult can be solved, the conduction angle of hot air can be controlled, the selectivity of the user is more, and therefore the carpet type heating effect can be achieved.

The present invention discloses a steel pipe gap detection device, which relates to the technical field of detection equipment. It includes a detection component, which includes a rotating ring, a scraper block and a detection module. The scraper block and the detection module are arranged in the inner cavity of the rotating ring. The scraper block can clean the outer surface of the steel pipe weld, and the detection module can perform ultrasonic detection on the steel pipe weld. The device has a small structure and light weight. It can be easily transported to the welding site and detect the welding pipeline without the help of tools, eliminating the link of transporting the welding pipeline, greatly facilitating the weld detection of the welding pipeline. The scraper block can clean the weld of the welding pipeline and remove the welding slag on the surface of the weld to prevent the welding slag from affecting the detection effect. The conduction component of the detection module can effectively conduct ultrasonic signals. The coupling water in the sealing tube further enhances the conduction effect of the conduction component, thereby improving the detection effect of the ultrasonic probe.

The application discloses a three-core UTP cable, a three-core UTP wire harness and a camera module, comprising a differential signal line pair, a ground signal line, a filler and an outer insulation layer, the outer insulation layer wrapping the differential signal line pair, the ground signal line and the filler, and the filler being located between the differential signal line pair, the ground signal line and the outer insulation layer; the differential signal line pair comprises a first differential signal line and a second differential signal line, and the first differential signal line and the second differential signal line are twisted by a double-twisted wire structure; and the differential signal line pair and the ground signal line are arranged at intervals. The application provides a more stable and reliable grounding path, can effectively conduct electrostatic charges, avoids accumulation of static electricity on the camera module, and can effectively solve the ESD failure problem of the camera module based on the UTP wire harness.

The utility model discloses hot and cold automatic die changing equipment which comprises a rack, an operation table is arranged at one end of the rack, a hot pressing device and a cold pressing device which are arranged in parallel are arranged in the rack, each of the hot pressing device and the cold pressing device comprises an upper pressing plate and a lower pressing plate, and a translation device is further arranged on the rack. The translation device comprises a fixing rod for placing a product, a pressing rod, a translation mechanism and a lifting mechanism; and the upper pressing plate and the lower pressing plate are respectively provided with limiting grooves for fixing the pressing rod and the fixing rod. The fixing rod and the pressing rod are arranged, the limiting grooves are formed in the upper pressing plate and the lower pressing plate, and when the fixing rod and the pressing rod drive the die to move to the hot pressing device or the cold pressing device, the fixing rod and the pressing rod are embedded into the upper pressing plate and the lower pressing plate so that the die can make direct contact with the upper pressing plate and the lower pressing plate; the direct contact between the die and the upper and lower pressing plates can more effectively conduct pressure and temperature, so that energy waste is reduced, and the processing efficiency and the product quality are improved.