17results about How to "Strong structural reliability" patented technology

The invention provides a conductive ceramic heating element, the conductive ceramic heating element is provided with a first end and a second end which are oppositely arranged, and the conductivity of the conductive ceramic heating element is gradually increased in the direction from the first end to the second end. When the conductive ceramic heating body is used, a gradually-changed heating area can be formed, the heat utilization rate is guaranteed, the influence caused by mismatching of thermal expansion and thermal stress is relieved, and then the use performance of the conductive ceramic heating body is improved. The invention further provides a preparation method of the conductive ceramic heating body and an electronic cigarette.

The utility model relates to the technical field of low-voltage switches, and particularly discloses a direct-current contactor shell and a direct-current contactor, the direct-current contactor shell comprises a transparent glass shell, the transparent glass shell is provided with an internal cavity capable of accommodating a moving contact system, the transparent glass shell is provided with a mounting hole, and the transparent glass shell is provided with a binding post arranged in the mounting hole in a penetrating manner; kovar sealing sleeves for sealing are arranged between the mounting holes and the binding posts; the kovar sealing sleeve is sleeved on the outer side wall of the binding post, and the inner side surface of the kovar sealing sleeve is attached to the outer side wall of the binding post; the outer side face of the Kovar sealing sleeve is attached to the inner wall of the mounting hole. The high-temperature-resistant and high-pressure-resistant cable is convenient to produce and has good gas tightness and excellent high-temperature-resistant performance, meanwhile, hydrogen can be used as protective gas, and the arc blocking performance can be improved conveniently.

The utility model discloses a hot melt adhesive spray gun which comprises a base, a plurality of adhesive outlet mechanisms, a connecting mechanism and a plurality of control mechanisms, and the base is provided with an adhesive inlet pipeline and an air inlet pipeline; the plurality of glue outlet mechanisms comprise nozzle openings, glue outlet pipelines and gas outlet pipelines, the gas inlet pipelines are communicated with the gas outlet pipelines through pipelines, and the glue outlet pipelines and the gas outlet pipelines are communicated with the nozzle openings; the connecting mechanism comprises a glue passing pipeline; the glue passing pipeline is communicated between the glue inlet pipeline and the glue outlet pipeline; the control mechanisms and the glue discharging mechanisms are arranged in a one-to-one correspondence mode, each control mechanism comprises a switch assembly, an electromagnetic valve and a heat insulation seat, the switch assemblies are arranged on the glue passing pipeline, the electromagnetic valves are connected with the switch assemblies through pipelines, and the heat insulation seats are connected between the switch assemblies and the electromagnetic valves and used for slowing down heat transfer between the switch assemblies and the electromagnetic valves. The utility model has the advantages of compact structure, small volume and strong structural reliability.

The invention relates to the technical field of photodynamics, and discloses a metasurface-based efficient broadband all-dielectric reflector and a design and preparation method thereof.The all-dielectric reflector is of a double-layer film structure formed by periodic continuation of a plurality of light sail units, each light sail unit comprises a silicon nitride layer and a silicon layer, the silicon nitride layer is provided with a plurality of round holes, and the round holes are formed in the silicon layer. The plurality of circular holes are distributed on the silicon nitride layer in an array, and the silicon layer is provided with a circular opening. The broadband reflection of more than 70% can be realized in the range of 1300 nm to 1550 nm when the broadband reflection antenna is used, the peak reflectivity at 1330 nm exceeds 90%, the bandwidth can cover the Doppler spectrum when the broadband reflection antenna is accelerated, and the broadband reflection antenna has the advantages of high reflectivity, broadband response, large receiving area and light weight; the problems that a traditional light sail is poor in stability, and high-resolution images of extrasolar planets cannot be effectively captured under the condition of high-speed driving are solved.

The application provides a method for improving condensate water evaporation efficiency, comprising the following steps: embedding a serpentine metal condensate water evaporation pipe in the lower side of a water pan through an insert injection integrated molding process, improving the heat exchange area of the serpentine metal condensate water evaporation pipe and the water pan, and forming an integrated water pan structure with a lower surface protruding downward, the lower surface protruding downward can further increase the contact area with the compressor, improve the heat exchange effect, then arranging the water pan above the compressor of a refrigeration equipment, utilizing the heat synergistic effect of the serpentine metal condensate water evaporation pipe and the compressor of the refrigeration equipment, and improving the condensate water evaporation efficiency. The serpentine metal condensate water evaporation pipe and the water pan can be integrally formed at one time through the insert injection integrated molding process, the heat conduction contact area is increased, and the dirt accumulation dead angle is eliminated, through the structure arranged above the compressor, the heat exchange efficiency is improved, the multiple technical effects of efficient condensate water evaporation, pipeline corrosion prevention and production cost reduction are realized.

This utility model discloses a self-tightening, anti-loosening gear and rack mechanism, including a gear disk, a rolling rack, and a gear support. The gear disk is mounted on the gear support via a central column and has an adjusting spring and a stop pin inside. A rolling wheel is mounted at the bottom of the rolling rack, and a rack end shaft is provided at its tail end. When the rolling rack moves, the adjusting spring generates an axial preload to keep the gear disk and rolling rack tightly meshed. The outer gear ring of the gear disk has an end shaft indicator groove that cooperates with and limits the movement of the rack end shaft. This utility model effectively prevents gear loosening through a spring self-tightening mechanism and reduces friction through the rolling wheel. It has advantages such as high transmission accuracy, good anti-loosening performance, and reliable structure, and is suitable for mechanical equipment requiring high-precision transmission.

The utility model discloses a wheel structure of a train model, which is characterized by comprising a wheel, a half shaft, a shaft sleeve and a power-taking tip, the half shaft is arranged on the inner side of the wheel, the power-taking tip is arranged on the outer side of the wheel, and the half shaft is inserted into mounting holes at two ends of the shaft sleeve; the shaft sleeve is insulated, and the wheel, the shaft and the electricity taking tip are all conductive. According to the utility model, the power-taking tip is arranged, so that a power supply provided by the rail can be connected with an electric appliance in the train model to form a power supply path; the connection mode and parameters of the axle sleeve and the half axle are set to ensure reliable connection of the axle sleeve and the half axle, and the structural parameters are set to ensure high reliability of the wheel structure and stable power supply access; and the whole structure is simple, the manufacturing cost is low, material loss can be greatly reduced, and maintenance is easy when damage occurs.

The utility model discloses a multi-point detection fiber bragg grating sensor for soil moisture content. The multi-point detection fiber bragg grating sensor comprises an optical fiber protection tube and a measuring tube assembly, one end of the optical fiber protection tube is connected with the head end of the measuring tube assembly; the measuring pipe assembly comprises a plurality of measuring pipes, and every two adjacent measuring pipes are connected through a heat insulation pipe. Densely distributed optical fibers are arranged in the measuring tube assembly, and optical fiber grating regions are arranged at the positions, corresponding to the measuring tubes, of the densely distributed optical fibers respectively; a heating resistance wire is arranged in each measuring tube; and densely distributed optical fibers led out from the measuring tube assembly and a lead connected with the heating resistance wire are fixed in the optical fiber protection tube. The soil moisture detector can be inserted into soil to detect the moisture content of different positions of the soil at one time, the detected soil cannot be damaged, the measurement precision is high, and the detection process is convenient and fast.

The utility model relates to the technical field of heaters, and provides a power harness assembly, which comprises a lead, an upper cover and a rubber plug waterproof structure, one end of the lead can be provided with a connector, the upper cover is provided with an assembly position for installing the rubber plug waterproof structure, and the rubber plug waterproof structure is in interference fit with the upper cover. The rubber plug waterproof structure is provided with a through hole for the wire to pass through, and the wire is in interference fit with the through hole. The APTC heater device comprises a heating core body and further comprises the power wire harness assembly, and the upper cover is installed on the heating core body. The automobile comprises the APTC heater device. According to the utility model, the waterproof structure of the power harness assembly is designed, and two interference fit positions are matched, so that the IP67 protection grade can be realized; the core body shell adopts a frame type design, and the bottom of the core body shell is provided with a fixed clamping groove, so that the core body shell is higher in structural reliability and simpler to assemble, and the times of buckle assembly and screw fastening are reduced technologically.

The utility model discloses a Luneberg lens antenna servo device capable of realizing double-frequency low-orbit tracking, which relates to the technical field of communication antennas and comprises a hemispherical Luneberg lens antenna surface, a reflecting plate, a Ku feed source, a Ka feed source, a feed source support, an azimuth rotation turntable, a pitching rotation support and a rolling rotation slide rail. And the reflecting plate is mounted on the bottom side of the antenna surface of the hemispherical Luneberg lens. By adopting an A-E-C structural form, a transverse rolling shaft is made into a sliding rail, so that a luneberg lens spherical antenna surface keeps still, a Ku feed source and a Ka feed source do arc-shaped motion along with the sliding rail, angle change of a transverse rolling wave beam is realized, the height of the hemispherical luneberg lens antenna surface does not need to be raised, the motion envelope is the same as the envelope height of a same-caliber two-shaft structure, and the angle change of the transverse rolling wave beam is realized. Compared with an A-C-E structure type three-axis antenna, the overall height is obviously reduced, the structure reliability is higher, the weight is lighter, the antenna is more suitable for an installation carrier with the limited space size, top-crossing tracking is achieved, and continuous and reliable low-orbit satellite communication is guaranteed.

The embodiment of the utility model relates to the technical field of vehicles, and discloses a supporting device and a vehicle, and the supporting device comprises a reinforcing assembly which is provided with a first connecting section used for being assembled and connected with a rear floor assembly and a second connecting section used for being assembled and connected with a mounting bracket, according to the supporting device, the reinforcing assembly is arranged on the rear floor assembly, the second connecting section of the reinforcing assembly is connected with the mounting support, the reinforcing assembly is arranged on the rear floor assembly, the reinforcing assembly is connected with the mounting support through the second connecting section of the reinforcing assembly, and therefore the supporting structure is formed. Therefore, an effective frame supporting structure can be formed between the rear floor assembly and the reinforcing assembly, the overall structural strength and stability of the reinforcing assembly are improved, and the situation that the installation support deforms due to the influence of external force in the assembling process can be reduced; and meanwhile, the mounting bracket can be reliably supported in the long-term use process of the vehicle, so that the reliability of the rear bumper assembly process is improved, and the collision performance of the rear part of the vehicle can also be improved.

The utility model discloses a height sensor for vehicle chassis, include: sensor fixed seat, the sensor fixed seat inside is fixed with sensing element through injection molding process, rocker, the rocker inside is fixed with magnetic element through injection molding process, the sensor fixed seat with the rocker is detachably connected through the joint structure, when the rocker relative the sensor fixed seat rotates, the position change of magnetic element is detected with sensing element and is converted into electric signal, the utility model discloses a sensing element and magnetic element are injection molded respectively and are connected with the joint type, fundamentally simplify the sensor structure, realize the innate sealing of core element, and the process complexity is reduced greatly and improves the dismouting maintenance convenience and structural reliability of product.

The utility model discloses a new energy battery cover plate water detection clamp which comprises an upper cavity and a lower cavity which are detachably and fixedly connected, a first groove is formed in the lower plane of the upper cavity, second grooves are formed in the left side and the right side of the first groove, and the first groove and the second grooves are used for being connected with a workpiece to be detected in a sleeved mode. A first O-shaped sealing ring and a second O-shaped sealing ring are arranged on the peripheries of the first groove and the second groove respectively, and first vent holes are formed in the positions, corresponding to the first groove and the second groove, of the front side face of the upper cavity and used for introducing compressed air into the first groove and the second groove; according to the utility model, the workpiece to be detected is fixed in the rectangular grooves of the upper cavity and the lower cavity, the first groove and the second groove, compressed air is introduced into the corresponding grooves through the first vent holes, the workpiece is placed in water for detection, whether bubbles emerge or not is observed, and the appearance of the workpiece to be detected is not influenced. And the air leakage position and the air leakage degree can be determined by observing the position, the size and the speed of the air bubbles.

The invention discloses an end structure suitable for friction welding, and particularly relates to the technical field of welding, the end structure comprises a chassis, a connecting disc is arranged at the top of the chassis, a plurality of hole grooves are formed in the connecting disc, a plurality of pin shafts are arranged at the top of the connecting disc, the pin shafts correspond to the hole grooves in a one-to-one mode, and shaft grooves are formed in the bottom ends of the pin shafts. According to the rotary friction pressure welding method, the structures such as the pin shaft and the connecting disc are arranged, so that redundant connecting pieces do not exist in the connecting process, various chemical liquids do not need to be added, only the pin shaft and the connecting disc are arranged, and the rotary friction pressure welding method has good structural reliability and high-precision connection of the pin shaft; only numerical control machining equipment (a machining center, a numerical control milling machine and the like) is used as a main body, and due to popularization of numerical control machining, the rotary friction pressure welding method is not limited by professional equipment and has wide applicability.

The application provides a kind of based on multi-stage neural network model's cyclic peptide conformation generation method, device, equipment and storage medium, it is related to artificial intelligence and computer aided drug design technical field.The method comprises: according to the amino acid sequence of cyclic peptide extraction sequence embedding representation;Adopt Riemann flow matching to generate skeleton structure candidate set, obtain side chain torsion angle by cyclic relative position coding and torsion flow matching, obtain all-atom rough conformation according to skeleton structure candidate set and side chain torsion angle by forward kinematics;Determine covalent connection topology according to all-atom rough conformation, minimize physical potential energy function according to covalent connection topology and all-atom rough conformation, obtain cyclic peptide ground state conformation.The application decouples conformation generation process and introduces hierarchical parallel sampling strategy, effectively overcomes model mode collapse, maintains extremely high structural diversity, while greatly improves the accuracy and calculation efficiency of obtaining cyclic peptide low-energy conformation.

The utility model belongs to the technical field of energy storage battery discloses a kind of heat dissipation air flue, including main air flue, the baffle one is arranged in the ventilation cavity of main air flue, to be separated into multiple ventilation units with ventilation cavity;The first end of main air flue is provided with air guide piece one, the second end of main air flue is provided with air guide piece two, in the direction from the first end to the second end of main air flue, the air guide piece one is in condensation structure, the air guide piece two is in diffusion structure.The utility model passes through optimizing main air flue structure, effectively improves the heat dissipation efficiency, and effectively ensures structural stability.The utility model further discloses a kind of energy storage battery pack with the heat dissipation air flue described above.

The invention provides a composite material light shield of a variable cross-section grating and a manufacturing method of the composite material light shield, and belongs to the technical field of fiber reinforced resin matrix composite materials. The problems of difficult demolding, poor structural stability, insufficient rigidity and low imaging precision of the existing light shield processed by adopting a mold closing process are solved. The light shield comprises a light shield body, a grating set and an outer flange, the light shield body is oval, the grating set is arranged on the inner wall of the light shield body, the outer flange is arranged on the outer side of the light shield body, and the light shield forming mold comprises a core mold and a mold shell. The core molds are arranged in the mold shell and are all hollow elliptic cylinders. The non-imaging stray light blocking device is mainly used for blocking non-imaging stray light in a space environment in a satellite space camera.