12 results about "Metallic conduction" patented technology

An energy storage dielectric capacitor disclosed by the present invention comprises an explosion-proof assembly, the explosion-proof assembly comprises a first pressure relief hole formed in a cover body and a cover body covering the top end of the cover body, the cover body is provided with a plurality of second pressure relief holes, the second pressure relief holes and the first pressure relief hole form a pressure relief channel communicating the interior of a shell with the outside, and a core is electrically connected with a first conductive column. The end, away from the core, of the first conductive column extends into the first pressure relief hole, the terminal is fixedly connected with a second conductive column, and the end, away from the terminal, of the second conductive column is located on the inner side of the cover body and provided with a metal conduction block. The explosion-proof assembly with a linkage function is integrated on the cover body, in a normal working state, the movable part of the metal conduction block abuts against the first conductive column under the action of pre-tightening force, normal operation of the capacitor is guaranteed, when the pressure in the shell is abnormally increased due to a fault, internal air pressure directly acts on the movable part, and the safety of the capacitor is guaranteed. And the electrical connection between the core and the external circuit is immediately disconnected, thereby preventing continuous input of fault current from aggravating thermal runaway.

The application provides a steam delivery pipeline leakage detection system, which comprises a metal conducting rod fixedly connected to the outer wall of a steam delivery pipeline, a sensor connected to the metal conducting rod, a signal analyzer electrically connected to the sensor, and a DCS control center electrically connected to the signal analyzer, and the sensor is used for collecting the vibration sound signal of the metal conducting rod. The steam delivery pipeline leakage detection system of the application can accurately and timely determine the leakage and the position of the leakage point by using the metal conducting rod connected to the steam delivery pipeline to transmit the vibration sound generated by the intense friction between the leakage medium and the pipeline wall, and the sound signal is not obviously attenuated in the transmission process due to the solid medium transmission, the transmission distance is long, and the sound signal is not easily interfered by other signals, the false positive rate of the leakage detection is effectively reduced, the operation and maintenance cost of the steam delivery pipeline is significantly reduced, and the industrial safety is improved.

The utility model provides a one-way bearing structure which is applied between an input piece and an output piece, the one-way bearing is provided with a plastic mounting seat, a plurality of pin rollers and a metal conduction seat, the plastic mounting seat is provided with a plurality of mounting grooves which are arranged at equal intervals and are through in the radial direction, the pin rollers are accommodated in the opposite mounting grooves, and the metal conduction seat is connected with the pin rollers. And a plurality of conduction inclined surfaces corresponding to the mounting grooves are formed on the peripheral surface of the metal conduction seat corresponding to the plastic mounting seat, so that the rollers on the plastic mounting seat can selectively press the metal conduction seat by utilizing the opposite conduction inclined surfaces to generate a one-way driving effect. Therefore, the weight of the one-way bearing can be reduced by utilizing the plastic mounting seat which can be molded, and the effects of light weight, cost reduction and easiness in processing can be achieved under the condition that the strength of transmission power is not influenced.

The invention discloses a miniaturized low-profile flexible ocean galvanic couple type pH sensor and a preparation method thereof, and aims to solve the problems of large profile thickness and insufficient reliability of the conventional flexible pH sensor. A working electrode system and a reference electrode system in the miniaturized low-profile flexible ocean galvanic couple pH sensor are arranged on a flexible polyimide substrate, and the working electrode system comprises an iridium oxide working electrode, a first metal conduction circuit layer and a first metal bonding pad; the iridium oxide working electrode is connected with the first metal bonding pad through the first metal conduction circuit layer, the reference electrode system comprises a reference electrode, a second metal conduction circuit layer and a second metal bonding pad, and the reference electrode is connected with the second metal bonding pad through the second metal conduction circuit layer. The pH response performance is remarkably improved by utilizing the nanocrystalline iridium oxide sensing layer, the sensitivity reaches 72.76 mV / pH, and 16.84 s quick response is realized in a high-flow-velocity marine environment of 3 m / s.

A handling device for biological particles includes a substrate, a metal conductive layer, a working electrode and at least one dielectric layer. The metal conductive layer is on the substrate. The working electrode is arranged on the metal conducting layer and is electrically connected with the metal conducting layer. The at least one dielectric layer covers the metal conducting layer, the at least one dielectric layer is provided with a first groove, the first groove exposes the working electrode, the top surface of the working electrode is higher than the bottom of the first groove, and the at least one dielectric layer contacts the side wall of the working electrode. The first groove can prevent the working electrode from contacting and damaging the target biological particles.

The invention relates to the technical field of composite machining machine tools, in particular to a numerical control drilling and milling composite machine tool for multi-angle synchronous drilling of plastic parts, and is characterized in that a pneumatic cleaning structure is mounted in a rotary cutter head and on the side wall of a rack main body, and the cleaning structure is used for pneumatically cleaning disintegrating slag adhered to the surface of a cutter; the rotary cutter head is provided with an abrasion detection structure aiming at the cutter, the abrasion detection structure is in linkage with a vibration clearing assembly aiming at the cutter, power generated in the lifting process of the spindle box is ingeniously utilized through a pneumatic clearing structure, and storage and release of high-pressure gas can be completed without additionally arranging a power source; vortex airflow is formed through guiding of a spiral groove of the conical flow guide cover, the effects of flow gathering pressurization and rotary washing are achieved, and the vortex airflow can be precisely attached to the surface of the cutter to take away attached disintegrating slag; vibration generated by the vibration clearing assembly through collision of the iron block is transmitted to the cutter through the metal conduction rod, so that stubborn residues are loosened, and rapid blowing-off of airflow is facilitated.

The invention relates to the technical field of combustible gas detectors, in particular to an explosion-proof combustible gas detector which is characterized in that a cooling structure is arranged in a shell and comprises a hollow pipe, a metal conduction rod is fixed on the inner wall of the shell, and the hollow pipe is fixed in the shell through the metal conduction rod; the bottom of one side of the shell is provided with a hollow bin, a first filter screen is installed at the bottom of the hollow bin, an exhaust fan is installed in the hollow bin, one end of the hollow pipe is located in the hollow bin, and a first air inlet hopper is fixed to one end of the hollow pipe. When electronic components in the shell generate heat and need to be cooled, the exhaust fan is started, external air is sucked into the hollow bin, impurities are filtered out through the first filter screen, then the external air enters the hollow pipe through the first air inlet hopper, heat in the shell is transmitted into the hollow pipe through the metal conduction rod, then cooling in the shell is achieved, and hot air after heat absorption flows into the hollow box to be reused.

The utility model provides a piezoelectric focusing shock wave device which comprises a decorative face shell, a light bar, an upper cover outer shell, a circuit board, a middle outer shell, a key, a key board, a lower cover outer shell, a ceramic crystal module, a metal conduction shell, a gel pad and a fixing outer ring. The circuit board is installed between the upper cover shell and the middle shell, the middle shell is connected with the lower cover shell, the ceramic crystal module is installed in the lower cover shell and connected with the metal conduction shell, the gel pad is installed on the metal conduction shell, and the gel pad and the lower cover shell are installed together through the fixing outer ring. According to the device, non-invasive treatment is carried out on a treatment part through piezoelectric type shock waves, fine and accurate penetration depth can be achieved, the device is suitable for pain symptoms of different depth degrees, and more treatment requirements are met. Piezoelectric focusing shock waves adopt a reverse hemispherical surface integration technology, piezoelectric elements are integrated, and frequency noise is reduced.

The utility model belongs to the technical field of cryogenic separation equipment, and particularly relates to a low-temperature supporting structure for a cryogenic CO cold box in a natural gas-to-ethylene glycol device, which comprises a foundation slab and an equipment supporting assembly which are arranged in a box body, and the equipment supporting assembly comprises a plurality of supporting ring pipes and supporting lugs corresponding to the supporting ring pipes. The supporting lug is arranged at the top end of the supporting ring pipe, a cold insulation assembly is arranged between the bottom end of the supporting ring pipe and the foundation bottom plate, a plurality of heat insulation skylights are formed in the supporting ring pipe in the axial direction, and the supporting ring pipe and the box body are both filled with pearlife. According to the utility model, the heat insulation skylight effectively reduces the loss of cold energy conducted by metal, the pearlife in the support ring pipe effectively blocks the loss of cold energy conducted by convection, and the design of the cold insulation component further avoids direct contact between the support ring pipe and the foundation slab, so that the formation of a cold bridge is prevented, and the cold brittleness of the foundation slab is avoided; and safe operation of equipment is ensured.

The utility model belongs to the technical field of winding devices, and discloses a static electricity removing winding device which comprises a supporting platform, a transmission roller is installed at the upper end of the left side of the supporting platform, a positioning frame is fixed to the middle of the supporting platform, guide roller assemblies are installed at the upper ends of the two sides of the positioning frame, and a first sliding rail is connected to the upper end of the right side of the supporting platform. The upper end of the first sliding rail is connected with a sliding block, and a supporting plate is fixed to the upper end of the sliding block. A positioning shaft is connected to the upper end of the supporting plate, a winding roller is arranged above the first sliding rail, a supporting frame is fixed to the upper end of the positioning frame, a movable frame is arranged at the lower end of the supporting frame, and a static electricity removing roller is connected to the lower end of the movable frame. According to the winding device capable of removing static electricity, the metal conduction structure is arranged, the winding device can make contact with a thin film and conduct static electricity during winding, the static electricity can be removed synchronously during winding, meanwhile, the positioning shaft with the adjustable distance is arranged in a matched mode, the winding roller can be rapidly disassembled and assembled, and the operation convenience is improved.

The welding fixture provided by the application can realize layered and accurate heat dissipation for the heat characteristics in the laser welding process through the multi-stage cooperative heat dissipation system composed of a cooling flow channel module, a nitrogen cooling module and a semiconductor refrigeration module. The basic heat of the product can be quickly transferred through the conduction effect of the cooling flow channel plate and the support block of the cooling flow channel module. The nitrogen cooling module directly cools the high-temperature welding point through the jet mechanism, effectively inhibiting the local transient heat accumulation of the welding point. The semiconductor refrigeration module actively absorbs the local heat of the product to be welded through the cold end of the semiconductor refrigeration sheet, and discharges the heat to the outside through the hot end, forming an active refrigeration heat dissipation path. The three work cooperatively, greatly improving the overall heat dissipation efficiency, effectively alleviating the heat deformation problem caused by the insufficient heat dissipation of the traditional single metal conduction, significantly inhibiting the mutual coupling effect of multi-welding point heat deformation, ensuring the flatness accuracy of the product to be welded, and further improving the welding yield.

The invention relates to the technical field of vehicle-mounted antennas, and discloses a vehicle-mounted communication antenna which is mainly composed of a bottom plate, a base, a UHF low-frequency antenna element, a substrate plate, a main conductor radiation patch array and a reflection conductor radiation patch array, the main conductor radiation patch array comprises a feed-in part and a radiation part, the feed-in part comprises a first feed-in connecting part, and the radiation part comprises a second feed-in connecting part. The two ends of the first feed-in connecting part are symmetrically connected with second feed-in connecting parts, the reflection conductor radiation patch array comprises a feed-in part and a radiation part, the feed-in part comprises the first feed-in connecting part, and the two ends of the first feed-in connecting part are symmetrically connected with the second feed-in connecting parts. And the center of the main conductor feed-in connecting part I and the center of the reflection conductor feed-in connecting part I are respectively connected with the probe of the coaxial feed element and the metal conducting layer. According to the antenna structure, different radiation patches are designed, the radiation bodies are asymmetrically arranged, and ports are physically isolated, so that the characteristics of linear gain, omnidirectional high gain and high isolation can be met at the same time.